multipurpose aerosol generator system

专利摘要:
MULTIPLE USES AEROSOL GENERATOR SYSTEM. The present invention relates to an aerosol generating system comprising a housing that has a first portion (22) and a second portion (24). The housing comprises: an air inlet (26, 26a, 26b); a nicotine source (8); a source of volatile distribution enhancing compound (12); and an air outlet (28). The first portion of the housing and the second portion of the housing are slidable with respect to each other between an open position and a closed position. In the open position, the air inlet and air outlet are unobstructed and the source of nicotine and the source of the volatile distribution enhancing compound are both in fluid communication with the airflow route through the housing between the air inlet. and the air outlet. In the closed position, the air inlet is obstructed or the source of nicotine and the source of volatile distribution enhancing compound are not in fluid communication with the airflow route through the housing between the air inlet and the air outlet. or both.
公开号:BR112015030606B1
申请号:R112015030606-3
申请日:2014-07-02
公开日:2021-03-02
发明作者:Patrick SILVESTRINI
申请人:Philip Morris Products S.A；
IPC主号:

专利说明:

[001] The present invention relates to the multi-use aerosol generating system. In particular, the present invention relates to a multipurpose aerosol generating system for generating an aerosol comprising particles of nicotine salt.
[002] Documents No. WO 2008/121610 A1, WO 2010/107613 A1 and WO 2011/034723 A1 disclose devices for delivering nicotine to a user comprising a source of nicotine and a source of distribution enhancing compound volatile. The nicotine and the volatile distribution enhancing compound are reacted with each other in the gas phase to form an aerosol of nicotine salt particles that is inhaled by the user.
[003] So-called "e-cigarettes", which vaporize a liquid nicotine formulation to form an aerosol that is inhaled by a user, are also known in the art. For example, WO No. 2009/132793 A1 discloses an electrically heated smoking system comprising an enclosure and a replaceable mouth in which the enclosure comprises an electrical power supply and electronic circuits. The mouth comprises a liquid storage part, a capillary wick that has a first end that extends in the liquid storage part to contact the liquid therein and a heating element to heat a second capillary wick end. In use, the liquid is transferred from the liquid storage part towards the heating element through the capillary action on the wick. The liquid at the second end of the wick is vaporized by the heating element.
[004] It would be desirable to provide a "multiple-use" e-cigarette or an aerosol generating system of the type disclosed in document No. WO 2008/121610 A1, WO 2010/107613 A1 and WO 2011/034723 A1 that is capable of deliver multiple doses of an aerosol of nicotine salt particles to a user over a period of time.
[005] Nicotine sources and volatile distribution enhancing compound sources for use in aerosol generating systems of the type disclosed in document No. WO 2008/121610 A1, WO 2010/107613 A1 and WO 2011/034723 A1 will have a tendency to lose nicotine and volatile distribution enhancing compound, respectively, when stored for a period of time. It would be desirable to provide multiple-use e-cigarettes or an aerosol generating system of the type disclosed in document No. WO 2008/121610 A1, WO 2010/107613 A1 and WO 2011/034723 A1 in which sufficient nicotine and volatile distribution enhancing compound it is retained during storage to generate a desired aerosol of nicotine salt particles for distribution to a user through each use of the aerosol generating system.
[006] It is also desirable to provide a multi-purpose e-cigarette or aerosol generating system of the type disclosed in document No. WO 2008/121610 A1, WO 2010/107613 A1 eWO 2011/034723 A1 in which the nicotine and the compound of improvement of volatile distribution is released only through the use of the aerosol generating system.
[007] It would be additionally desirable to provide a multi-purpose e-cigarette or aerosol generating system of the type disclosed in document No. WO 2008/121610 A1, WO 2010/107613 A1 and WO 2011/034723 A1 in which nicotine and volatile distribution enhancing compounds are retained during storage without degradation by oxidation, hydrolysis or other unwanted reactions, which can alter the properties of the reagents.
[008] According to the invention, an aerosol generating system is provided which comprises a housing having a first portion and a second portion, wherein the housing comprises: an air inlet; a source of nicotine; a source of volatile distribution enhancing compound; and an air outlet. The first housing portion and the second housing portion are movable with respect to each other between an open position in which the source of nicotine and the source of volatile distribution enhancing compound are both in fluid communication with an air flow path. through the housing between the air inlet and the air outlet and a closed position in which the air flow path through the housing between the air inlet and the air outlet is obstructed or the source of nicotine and the source of compound of improved volatile distribution are not both in fluid communication with the airflow route through the housing between the air inlet and the air outlet or both.
[009] As used in this document, the term "air inlet" is used to describe one or more openings through which air can be drawn into the housing.
[0010] As used in this document, the term "air outlet" is used to describe one or more openings through which air can be drawn out of the housing.
[0011] As used in this document, the term "clogged" is used to indicate that the flow path is blocked so that air flow inside the housing through the air inlet, along with the air flow path through from the housing between the air inlet and the air outlet and out of the housing through the air outlet is substantially impeded.
[0012] The first portion and the second housing portion of the aerosol generator systems according to the invention are movable with respect to each other from the open position to the closed position. The first portion and the second housing portion of the aerosol generating systems according to the invention are also movable with respect to each other from the closed to the open position.
[0013] In the open position, the air flow route through the housing between the air inlet and the air outlet is unobstructed. As used in this document, the term "unobstructed" is used to indicate that a stream of air can be drawn into the housing through the air inlet, along with the airflow route through the housing between the air inlet and the air outlet, and out of the housing through the air inlet.
[0014] In an open position, the nicotine source and the volatile distribution enhancing compound source are both in fluid communication with the airflow route through the housing between the air inlet and the air outlet. In use, in the open position, this allows the nicotine released from the nicotine source and the volatile distribution enhancement compound released from the volatile distribution enhancement source to be dragged into an air stream drawn into the housing through the inlet. air and along with the air flow route through the housing between the air inlet and the air outlet. Nicotine and the volatile distribution enhancing compound in the swallowed air stream along with the airflow route through the housing between the air inlet and the air outlet react to the gas phase to form an aerosol of nicotine salt particles. which is sucked out of the housing through the air inlet for distribution to a user.
[0015] In the closed position, the airflow route through the housing between the air inlet and the air outlet is obstructed, or the source of nicotine and the source of volatile distribution enhancing compound are both not in communication fluid with the airflow route through the housing between the air inlet and the air outlet or both. In use, in the open position, this prevents the nicotine released from the nicotine source and the volatile distribution enhancement compound released from the distribution enhancement source from being entrained in an air stream drawn into the housing through from the air inlet, along with the airflow route through the housing between the air inlet and the air outlet, and out of the housing through the air inlet.
[0016] By moving the first portion and the second portion of the carcass of the aerosol generating systems relative to each other from the position open to the closed position between uses, sufficient nicotine and the volatile distribution enhancing compound can be advantageously retained during storage of the aerosol generating systems according to the invention to generate a desired aerosol for distribution to a user through each use of the aerosol generating system.
[0017] In the modalities in which the air flow route through the housing between the air inlet and the air outlet is obstructed in the closed position, a user is prevented from swallowing a current of air inside the housing through the air inlet. air, along with the airflow route through the housing between the air inlet and the air outlet and out of the housing through the air outlet in the closed position.
[0018] The air inlet can be obscured in the closed position. As used in this document, the term "clogged" is used to indicate that the flow of air inside the housing through the air inlet is substantially impeded. In such embodiments, the air flow route through the housing between the air inlet and the air outlet is obstructed in the closed position since the flow of air inside the housing through the air inlet is substantially impeded in the closed position.
[0019] Alternatively or additionally, the air intake can be blocked in the closed position. As used in this document, the term "clogged" is used to indicate that the flow of air out of the housing through the air inlet is substantially impeded. In such embodiments, the air flow path through the housing between the air inlet and the air outlet is obstructed in the closed position since the flow of air out of the housing through the air inlet is substantially impeded in the closed position.
[0020] Alternatively or additionally, the air flow path through the housing can be obstructed between the air inlet and the air outlet in the closed position. As used in this document, the term "clogged" is used to indicate that the flow of air between the air inlet and the air outlet is substantially impeded. In such embodiments, the air flow path through the housing between the air inlet and the air outlet is obstructed in the closed position since the air flow along with the air flow route through the housing between the air inlet. and the air outlet is substantially prevented in the closed position.
[0021] In the modalities in which the source of nicotine and the source of volatile distribution enhancing compound are not both in fluid communication with the air flow route through the housing between the air inlet and the air outlet in the closed position, the nicotine released from the nicotine source and the volatile spreading compound released from the volatile spreading compound source are prevented from being dragged into the air stream swallowed inside the housing through the air inlet, together with the airflow route through the housing between the air inlet and the air outlet and out of the housing through the air outlet in the closed position.
[0022] In certain preferred embodiments, the communication of the nicotine source and the volatile distribution enhancing compound source are not in fluid communication with each other in the closed position. This advantageously prevents nicotine released from the nicotine source from reacting with the volatile distribution enhancement compound released from the volatile distribution enhancement source in the closed position.
[0023] The source of nicotine and the source of compound for improving volatile distribution can both be located in the first portion of the carcass. In such embodiments, the second portion of the housing can be separated from the first portion of the housing in the open position.
[0024] In certain embodiments, the aerosol generating system may comprise a housing that has a first portion and a second vapor, wherein the first portion of the housing comprises: an air inlet; a source of nicotine; a source of volatile distribution enhancing compound; and an air inlet, where the first housing vapor and the second housing portion are mobile relative to each other between an open position in which the source of nicotine and the source of volatile distribution enhancing compound are both in fluid communication. with an air flow route through the first portion of the housing between the air inlet and the air outlet and a closed position in which one or both of the air inlet and air outlet are obstructed by the second portion of the housing.
[0025] In such embodiments, the second portion of the housing may be a removable cover, cover or sleeve which, at least partially, overlaps the first portion of the housing in the closed position, thereby obstructing one or more of the air intake and the air outlet and that the open position is removed from the first portion of the housing, thereby exposing the air inlet and air outlet.
[0026] Alternatively, a first among the source of nicotine and the source of compound for improving volatile distribution may be located in the first portion of the carcass and the second among the source of nicotine and the source of compound for improving volatile distribution may be located located in the second portion of the carcass.
[0027] As used in this document, the terms "proximal" and "distal" are used to describe the relative positions of the components, or portions of the components, of the aerosol generating systems according to the invention.
[0028] The aerosol generating system comprises a proximal end through which, in use, the aerosol leaves the aerosol generating system for distribution to a user. The proximal end of the aerosol generating system can also be referred to as the mouth end. In use, in the open position a user brings the proximal end of the aerosol generating article in order to inhale an aerosol generated by the aerosol generating system. The aerosol generating article system comprises a distal end opposite the proximal end.
[0029] As used in this document, the term "longitudinal" is used to describe the direction between the proximal end and the opposite distal end of the aerosol generating system and the term "transverse" is used to describe the direction perpendicular to the longitudinal direction.
[0030] The air outlet is located at the proximal end of the aerosol generating system housing. The air inlet may be located at the distal end of the aerosol generating system housing. Alternatively, the air inlet may be located between the proximal end and the distal end of the aerosol generating system housing.
[0031] As used in this document, the terms "downstream" and "upstream" are used to describe the positions of the components, or portions of the components, of the aerosol generating systems according to the invention with respect to the direction of the flow of air. air along with the airflow route between the air inlet and the air outlet when a user swallows at the proximal end of the aerosol generating system in the open position.
[0032] In the open position, when a user swallows at the proximal end of the aerosol generating system, air is drawn into the housing through the air inlet, passes downstream along the air flow route through the housing between the air inlet and air outlet and exits the housing through the air outlet at the proximal end of the aerosol generating system.
[0033] The proximal end of the aerosol generating system can also be referred to as the downstream end and the components, or portions of the components, of the aerosol generating system can be described as being upstream or downstream of each other based on their positions in relation to air flow through the housing of the aerosol generating system between the air inlet and the air outlet.
[0034] The first portion of the housing and the second portion of the housing configured so that a user can manually move the first portion of the housing and the second portion of the housing in relation to each other between the open position and the closed position.
[0035] The first portion of the housing and the second portion of the housing can be configured so that a user can, for example, push, pull, twist or rotate one or both of the first housing portion and the second housing portion in order of moving the first portion of the housing and the second portion of the housing in relation to each other between the open position and the closed position.
[0036] The first portion of the housing and the second portion of the housing can be movable together with the longitudinal axis of the housing in relation to each other between the open position and the closed position. In such embodiments, the length of the carcass in the open position may be greater than the length of the carcass in the closed position. Alternatively, the length of the housing in the open position may be less than the length of the housing in the closed position.
[0037] Alternatively, the first portion of the housing and the second vaporization of the housing can be movable together with the transverse axis of the housing in relation to each other between the open position and the closed position.
[0038] The first portion of the housing and the second portion of the housing can be slidable in relation to each other between the open position and the closed position.
[0039] In certain embodiments, the first portion of the carcass and the second portion of the carcass can be slidable with respect to each other together with a longitudinal axis of the aerosol generating system between the open position and the closed position.
[0040] In other embodiments, the first portion of the housing and the second portion of the housing can be slidable with respect to each other together with a transverse axis of the aerosol generating system between the open position and the closed position.
[0041] Alternatively, the first housing portion and the second housing vapor can be rotatable with respect to each other between the open position and the closed position.
[0042] In certain embodiments, the first portion of the carcass and the second portion of the carcass can be rotatable in relation to each other around a longitudinal axis of the aerosol generating system between the open position and the closed position.
[0043] In other embodiments, the first portion of the carcass and the second portion of the carcass can be rotatable in relation to each other around a transverse axis of the aerosol generating system between the open position and the closed position.
[0044] In certain embodiments, the aerosol generating system may comprise one or more first openings in the first portion of the housing and one or more second openings in the second portion of the housing may comprise, in the position open to one or more first openings in the first housing portion and one or more second openings in the second housing portion are substantially aligned and in closed position the one or more first openings in the first housing portion and one or more second openings in the second housing portion are substantially misaligned.
[0045] In use, the movement of the first portion of the housing and the second portion of the housing in relation to each other between the open position and the closed position allows the degree of registration between one or more first openings and one or more second openings are varied.
[0046] In such embodiments, substantial alignment of one or more first openings in the first housing portion and one or more second openings in the second housing portion in the open position can provide fluid communication between the nicotine source and the breeding compound of volatile distribution and the airflow route through the housing from the air inlet to the air outlet in the open position.
[0047] In such embodiments, substantial misalignment of the one or more first openings in the first housing portion and one or more second openings in the second housing portion in the closed position can obstruct the airflow route through the housing between the inlet and the air outlet in the closed position.
[0048] Alternatively or additionally, in such modalities, the substantial alignment of the one or more first openings in the first housing vapor and one or more second openings in the second portion of the housing in the closed position can prevent one or both of fluid communication to source of nicotine and the airflow route through the housing between the air inlet and the air outlet and fluid communication between the volatile distribution enhancing compound and the airflow route through the housing between the air inlet and air and the air outlet in the closed position.
[0049] The first portion of the carcass and the second portion of the carcass may comprise the same or different amounts of first openings and second openings, respectively.
[0050] The first portion of the carcass and the second portion of the carcass may be contiguous with respect to each other in one or both of the open and closed positions. For example, where the first housing portion and the second housing portion are rotatable with respect to each other around the longitudinal axis of the housing in the open and closed position, the first housing portion and the second housing portion may contiguous to each other in the open position and in the closed position.
[0051] Alternatively, the first housing portion and the second housing vapor can be spaced longitudinally from each other in one or both of the open and closed positions. For example, where the first housing portion and the second housing portion are movable along the longitudinal axis of the housing in relation to each other between the open and closed position, the first housing portion and the second housing portion they can be spaced longitudinally to each other in the open position and be contiguous to each other in the closed position.
[0052] Alternatively, the second portion of the carcass may overlap or underlie, at least in part, the first portion of the carcass in one or both of the open and closed positions.
[0053] The carcass may comprise a first compartment comprising the source of nicotine and a second compartment comprising the source of the volatile distribution enhancing compound.
[0054] The first compartment can be sealed through one or more frangible barriers before the first use of the aerosol generating system. In certain embodiments, the first compartment can be sealed by a pair of opposing transverse frangible or removable barriers.
[0055] Alternatively or additionally, the second compartment can be sealed through one or more frangible or removable barriers before the first use of the aerosol generating system. In certain embodiments, the second compartment can be sealed by a pair of opposite frangible or removable transverse barriers.
[0056] One or more frangible or removable barriers can be formed from any suitable material. For example, one or more removable or frangible barriers can be formed from a sheet or foil.
[0057] In such embodiments, the aerosol generating system may further comprise a perforating member for perforating one or more frangible barriers that seal one or both of the first compartment and the second compartment prior to the first use of the aerosol generating system.
[0058] The first compartment and the second compartment can be adjacent to each other. Alternatively, the first compartment and the second compartment can be spaced apart.
[0059] The volumes of the first compartment and the second compartment can be the same or different from each other. The first compartment must contain sufficient nicotine and the second compartment must comprise a sufficiently volatile distribution enhancement compound to generate multiple doses of aerosol for delivery to a user.
[0060] As further described below, the source of nicotine and the source of volatile distribution enhancing compound can be arranged in series or in parallel within the housing of the aerosol generating system.
[0061] As used in this document, by "series" is meant that the source of nicotine and the source of the volatile distribution enhancing compound are disposed within the housing of the aerosol generating system so that in the open position a flow of air swallowed along the airflow route through the housing between the air inlet and the air outlet, pass through a first source of nicotine and the source of volatile distribution enhancing compound and then through a second source of nicotine and the source of volatile distribution enhancing compound.
[0062] In such embodiments, the nicotine vapor is released from the nicotine source into the first airflow swallowed along the airflow route through the housing between the air inlet and the air outlet and the air vapor. volatile distribution enhancement compound is released from the source of volatile distribution enhancement compound into the second air flow swallowed along the air flow route through the housing between the air inlet and the air outlet. As described above, nicotine vapor reacts with volatile distribution enhancing compound vapor in the gas phase to form an aerosol, which is delivered to a user via the air outlet.
[0063] Whenever the source of nicotine and the source of the volatile distribution enhancement compound are arranged in series within the aerosol generating system, the source of the volatile distribution enhancement compound is preferably downstream of the source of nicotine so that, in the open position, a swallowed air flow along the air flow path through the housing between the air inlet and the air outlet, pass to the source of nicotine and then pass to the source of the distribution enhancement compound volatile. However, it will be contemplated that the source of the volatile distribution enhancing compound may alternatively be upstream of the nicotine source so that, in the open position, an air flow swallowed along the air flow path through the housing between the entrance of air and the air outlet go to the source of the volatile distribution enhancing compound and then go to the nicotine source.
[0064] In certain preferred embodiments, the source of nicotine and the source of the volatile distribution enhancing compound are arranged in series from the air inlet to the air outlet inside the housing with the nicotine source downstream of the inlet. air, the source of the volatile distribution enhancement compound downstream of the nicotine source and the air outlet downstream of the source of the volatile distribution enhancement compound.
[0065] As used in this document, "parallel" means that the source of nicotine and the source of the volatile distribution enhancing compound are disposed within the housing of the aerosol generating system so that, in the open position, a first flow of air swallowed along the airflow path through the housing between the air inlet and the air outlet passes to the nicotine source and a second flow of air engulfed along the airflow path through the housing between the air inlet and air outlet pass to the source of the volatile distribution enhancement compound.
[0066] In such modalities, the nicotine vapor is released from the nicotine source into the first air flow swallowed along the air flow path through the housing between the air inlet and the air outlet and the steam from the air. volatile distribution enhancement compound is released from the source of the volatile distribution enhancement compound into the second air flow swallowed along the air flow path through the housing between the air inlet and the air outlet. The nicotine vapor in the first air flow reacts with the vapor of the volatile distribution enhancing compound in the second air flow in the gas phase to form an aerosol, which is delivered to a user via the air outlet.
[0067] In certain preferred embodiments, the source of nicotine and the source of the volatile distribution enhancement compound are arranged in parallel within the housing with the source of nicotine and the source of the volatile distribution enhancement compound, both downstream of the inlet. of air and upstream of the air outlet. In such modalities, in the open position, a first part of an air flow is drawn into the housing, through the air inlet and along the air flow path through the housing between the air inlet and the air outlet, passes to the source of nicotine and a second part of the air flow is drawn into the housing, through the air inlet and along the airflow path through the housing between the air inlet and the air outlet, passes to the source of the volatile distribution enhancement compound. The nicotine vapor in the first portion of the air flow reacts with the vapor of the volatile distribution enhancing compound in the second portion of the air flow in the gas phase to form an aerosol, which is delivered to a user via the air outlet.
[0068] In other preferred embodiments, the air inlet comprises a first air inlet and a second air inlet and the source of nicotine and the source of the volatile distribution enhancing compound are arranged in parallel within the housing with the source of nicotine downstream of the first air inlet and upstream of the air outlet and the source of the volatile distribution improvement compound downstream of the second air inlet and upstream of the air outlet. In such modalities, in the open position, a first flow of air drawn into the housing, through the first air inlet and along the airflow path through the housing between the air inlet and the air outlet, passes to the nicotine source and a second flow of air drawn into the housing, through the second air inlet and along the airflow path through the housing between the air inlet and the air outlet, passes to the source of the compound of volatile distribution improvement. The nicotine vapor in the first air flow reacts with the vapor of the volatile distribution enhancing compound in the second air flow in the gas phase to form an aerosol, which is delivered to a user via the air outlet.
[0069] It will be contemplated that, whenever the housing of the aerosol generating system comprises a first compartment comprising the source of nicotine and a second compartment comprising the source of the volatile distribution enhancing compound, the first compartment and the second compartment may be arranged in series or in parallel inside the housing, as described above.
[0070] In the modalities in which the first compartment and the second compartment are arranged in series inside the housing and the second compartment is downstream of the first compartment, in use in the open position, the nicotine vapor can react with the vapor of the compound of improvement of volatile distribution to form an aerosol in the second compartment. In these embodiments, the carcass may further comprise a third compartment downstream of the second compartment and the nicotine vapor may alternatively or additionally react with the vapor of the volatile distribution enhancing compound to form an aerosol in the third compartment.
[0071] In the modalities in which the first compartment and the second compartment are arranged in series inside the housing and the second compartment is upstream of the first compartment, in use in the open position, the vapor of the volatile distribution improvement compound can react with the nicotine vapor in the first compartment. In these embodiments, the carcass may further comprise a third compartment downstream of the first compartment and the vapor of the volatile distribution enhancing compound may alternatively or additionally react with the nicotine vapor to form an aerosol in the third compartment.
[0072] In such embodiments, in which the first compartment and the second compartment are arranged in parallel within the housing, the housing may further comprise a third compartment downstream of the first compartment and the second compartment and the nicotine vapor in the first stream of Air and vapor from the volatile distribution enhancing compound can mix and react in the third compartment to form an aerosol.
[0073] When present, the third compartment may comprise one or more aerosol modifying agents. For example, the third compartment can comprise an adsorbent, such as activated carbon, a flavor, such as menthol, or a combination thereof.
[0074] The carcass may further comprise a nozzle downstream of the nicotine source and the source of the volatile distribution enhancing compound.
[0075] Whenever the housing of the aerosol generating system comprises a first compartment comprising the source of nicotine, a second compartment comprising the source of the volatile distribution enhancing compound and optionally a third compartment, the housing may further comprise a downstream nozzle from the first compartment, the second compartment and, when present, the third compartment. When present, the mouth may comprise a filter. The filter may have low particle filtration efficiency or very low particle filtration efficiency. Alternatively, the nozzle may comprise a hollow tube.
[0076] The aerosol generation system according to the invention comprises a source of volatile distribution enhancing compound. As used herein, "volatile" means that the distribution enhancing compound has a vapor pressure of at least about 20 Pa. Unless otherwise stated, all vapor pressures referred to in this document are vapor pressures at 25 ° C, measures according to ASTM E1194 - 07.
[0077] Preferably, the volatile distribution enhancing compound has a vapor pressure of at least about 50 Pa, more preferably of at least about 75 Pa, more preferably at least 100 Pa at 25 ° C.
[0078] Preferably, the volatile distribution enhancing compound has a vapor pressure less than or equal to about 400 Pa, more preferably less than or equal to about 300 Pa, even more preferably less than or equal to about 275 Pa, more preferably less than or equal to about 250 Pa at 25 ° C.
[0079] In certain embodiments, the volatile distribution enhancing compound may have a vapor pressure between about 20 Pa and about 400 Pa, more preferably between about 20 Pa and about 300 Pa, even more preferably between about 20 Pa Pa and about 275 Pa, more preferably between about 20 Pa and about 250 Pa at 25 ° C.
[0080] In other embodiments, the volatile distribution enhancing compound may have a vapor pressure between about 50 Pa and about 400 Pa, more preferably between about 50 Pa and about 300 Pa, even more preferably between about 50 Pa and about 275 Pa, more preferably between about 50 Pa and about 250 Pa at 25 ° C.
[0081] In additional embodiments, the volatile distribution enhancing compound may have a vapor pressure between about 75 Pa and about 400 Pa, more preferably between about 75 Pa and about 300 Pa, even more preferably between about 75 Pa and about 275 Pa, more preferably between about 75 Pa and about 250 Pa at 25 ° C.
[0082] In other additional embodiments, the volatile distribution enhancing compound may have a vapor pressure between about 100 Pa and about 400 Pa, more preferably between about 100 Pa and 300 Pa, even more preferably between about 100 Pa and about 275 Pa, more preferably between about 100 Pa and about 250 Pa at 25 ° C.
[0083] The volatile distribution enhancing compound may comprise a single compound. Alternatively, the volatile distribution enhancing compound can comprise two or more different compounds.
[0084] When the volatile distribution enhancing compound comprises two or more different compounds, the two or more different compounds combined have a vapor pressure of at least about 20 Pa at 25 ° C.
[0085] Preferably, the distribution enhancing compound is a volatile liquid.
[0086] The volatile distribution enhancing compound may comprise a mixture of two or more different liquid compounds.
[0087] The volatile distribution enhancing compound may comprise an aqueous solution of one or more compounds. Alternatively, the volatile distribution enhancing compound may comprise a non-aqueous solution of one or more compounds.
[0088] The volatile distribution enhancing compound can comprise two or more different volatile compounds. For example, the volatile distribution enhancing compound may comprise a mixture of two or more different volatile liquid compounds.
[0089] Alternatively, the volatile distribution enhancing compound may comprise one or more non-volatile compounds and one or more volatile compounds. For example, the volatile distribution enhancing compound may comprise a solution of one or more non-volatile compounds in a volatile solvent or a mixture of one or more non-volatile liquid compounds and one or more volatile liquid compounds.
[0090] In certain embodiments, the volatile distribution enhancing compound comprises an acid. The volatile distribution enhancing compound can comprise an organic acid or an inorganic acid. Preferably, the volatile distribution enhancing compound comprises an organic acid, more preferably a carboxylic acid, more preferably a lactic acid or alpha-keto or 2-oxo acid.
[0091] In preferred embodiments, the volatile distribution enhancing compound comprises an acid selected from the group consisting of lactic acid, 3-methyl-2-oxopentanoic acid, pyruvic acid, 2-oxopentanoic acid, 4-methyl-2 acid -oxopentanoic acid, 3-methyl-2-oxobutanoic acid, 2-oxo-octanoic acid and combinations thereof. In particularly preferred embodiments, the volatile distribution enhancing compound comprises lactic acid or pyruvic acid.
[0092] In preferred embodiments, the source of the volatile distribution enhancement compound comprises an absorption element and a volatile distribution enhancement compound sorbed onto the absorption element.
[0093] As used herein, "sorbed" means that the volatile distribution enhancing compound is adsorbed on the surface of the absorption element, or absorbed on the absorption element, or adsorbed on and absorbed on the absorption element. Preferably, the volatile distribution enhancing compound is adsorbed onto the absorption element.
[0094] The absorption element can be formed from any suitable material or combination of materials. For example, the absorption element may comprise one or more of glass, stainless steel, aluminum, polyethylene (PE), polypropylene, polyethylene terephthalate (PET), polybutylene terephthalate (PBT), polytetrafluoroethylene (PTFE), expanded polytetrafluoroethylene (ePTFE ) and BAREX®.
[0095] In preferred embodiments, the absorption element is a porous absorption element.
[0096] For example, the absorption element can be a porous absorption element that comprises one or more materials selected from the group consisting of porous plastic materials, porous polymeric fibers and porous glass fibers.
[0097] The absorption element is preferably chemically inert with respect to the volatile distribution enhancing compound.
[0098] The absorption element can be of any suitable size and shape.
[0099] In certain preferred embodiments, the absorption element is a considerably cylindrical plug. In certain especially preferred embodiments, the absorption element is a considerably cylindrical porous plug.
[00100] In other preferred embodiments, the absorption element is a substantially cylindrical hollow tube. In another particularly preferred embodiment, the absorption element is a substantially cylindrical, hollow porous tube.
[00101] The size, shape and composition of the absorption element can be chosen to allow a desired amount of the volatile distribution enhancing compound to be absorbed onto the absorption element.
[00102] The source of the volatile distribution enhancement compound must comprise sufficient volatile distribution enhancement compound to generate multiple doses of aerosol for delivery to a user.
[00103] In preferred embodiments, between about 20 μl and about 200 μl, more preferably between about 40 μl and about 150 μl, more preferably between about 50 μl and about 100 μl of the volatile distribution enhancing compound are absorbed onto the absorption element.
[00104] The absorption element acts advantageously as a reservoir for the volatile distribution enhancing compound.
[00105] Aerosol generating systems according to the invention also comprise a source of nicotine. The nicotine source may comprise one or more of nicotine, nicotine base, a nicotine salt, such as nicotine-HCl, nicotine bitartrate or nicotine ditartrate or a nicotine derivative.
[00106] The nicotine source may comprise natural nicotine or synthetic nicotine.
[00107] The nicotine source may comprise pure nicotine, a solution of nicotine in an aqueous or non-aqueous solvent or a liquid tobacco extract.
[00108] The nicotine source may further comprise an electrolyte-forming compound. The electrolyte-forming compound can be selected from a group consisting of alkali metal hydroxides, alkali metal oxides, alkali metal salts, alkaline earth metal oxides, alkaline earth metal hydroxides and combinations thereof.
[00109] For example, the nicotine source may comprise an electrolyte-forming compound selected from the group consisting of potassium hydroxide, sodium hydroxide, lithium oxide, barium oxide, potassium chloride, sodium chloride, carbonate sodium, sodium citrate, ammonium sulfate and combinations thereof.
[00110] In certain embodiments, the nicotine source may comprise an aqueous solution of nicotine, nicotine base, a nicotine salt or a nicotine derivative and an electrolyte-forming compound.
[00111] Alternatively, or in addition to this, the nicotine source may additionally comprise other components including, but not limited to, natural flavors, artificial flavors and anti-oxidants.
[00112] The nicotine source may comprise an absorption element and nicotine absorbed on the absorption element.
[00113] As used in this document, the term "absorbed" means that nicotine is absorbed on the surface of the absorption element or is absorbed in the absorption element, or absorbed in both and absorbed in the absorption element.
[00114] The absorption element can be formed from any suitable material or combination of materials. For example, the absorption element may comprise one or more of glass, stainless steel, aluminum, polyethylene (PE), polypropylene, polyethylene terephthalate (PET), polybutylene terephthalate (PBT), polytetrafluoroethylene (PTFE), expanded polytetrafluoroethylene (ePTFE ) and BAREX®.
[00115] In preferred embodiments, the absorption element is a porous absorption element.
[00116] For example, the absorption element can be a porous absorption element that comprises one or more materials selected from the group consisting of porous plastic materials, porous polymeric fibers and porous glass fibers.
[00117] The absorption element is preferably chemically inert with respect to nicotine.
[00118] The absorption element can be of any suitable size and shape.
[00119] In certain preferred embodiments, the absorption element is a considerably cylindrical plug. In certain especially preferred embodiments, the absorption element is a considerably cylindrical porous plug.
[00120] In other preferred embodiments, the absorption element is a substantially cylindrical hollow tube. In another particularly preferred embodiment, the absorption element is a substantially cylindrical, hollow porous tube.
[00121] The size, shape and composition of the absorption element can be chosen so as to allow a desired amount of nicotine to be absorbed in the absorption element.
[00122] The nicotine source must comprise enough nicotine to generate multiple doses of aerosol for distribution to a user.
[00123] In preferred embodiments, between about 50 μl and about 150 μl, more preferably about 100 μl of nicotine are absorbed into the absorption element.
[00124] The absorption element acts advantageously as a reservoir for nicotine.
[00125] It will be contemplated that the source of nicotine and the source of the distribution enhancing compound may comprise absorption elements with the same or different composition.
[00126] It will be contemplated that the source of nicotine and the source of the distribution enhancing compound may comprise absorption elements of the same or different size and shape.
[00127] The aerosol generating system may comprise: an aerosol generating article comprising the source of nicotine and the source of the distribution enhancing compound; and an aerosol generating device comprising: a cavity configured to receive the source of nicotine and the source of the distribution enhancing compound of the aerosol generating article; and heating means for heating the source of nicotine and the source of the distribution enhancing compound of the aerosol generating article within the cavity.
[00128] As used herein, the term "aerosol generating article" refers to an article comprising an aerosol-forming substrate capable of releasing volatile compounds, which can form an aerosol.
[00129] As used in this document, the term "aerosol generating device" refers to a device that interacts with an aerosol generating article to generate an aerosol that is directly inhaled into a user's lungs through the user's mouth.
[00130] It will also be contemplated that whenever the aerosol generating system comprises an aerosol generating article comprising the source of nicotine and the source of the volatile distribution enhancing compound, the source of nicotine and the source of the volatile distribution enhancing compound. may be arranged in series or in parallel within the aerosol generating article, as described above.
[00131] The aerosol generating article may comprise a first compartment comprising the source of nicotine and a second compartment comprising the source of volatile distribution enhancing compound.
[00132] It will be contemplated that, whenever the aerosol generating system comprises an aerosol generating article comprising a first compartment comprising the source of nicotine and a second compartment comprising the source of the volatile distribution enhancing compound, the first compartment and the second compartment can be arranged in series or in parallel within the aerosol generating article, as described above.
[00133] The first compartment and the second compartment can be adjacent to each other. Alternatively, the first compartment and the second compartment can be spaced apart. In certain embodiments, the first compartment and the second compartment can be spaced apart from each other in order to reduce heat transfer between the first compartment and the second compartment.
[00134] The first compartment can be sealed through one or more frangible barriers before the first use of the aerosol generating system. In certain embodiments, the first compartment can be sealed by a pair of opposing transverse frangible or removable barriers.
[00135] Alternatively or additionally, the second compartment can be sealed through one or more frangible or removable barriers before the first use of the aerosol generating system. In certain embodiments, the second compartment can be sealed by a pair of opposite frangible or removable transverse barriers.
[00136] One or more frangible or removable barriers can be formed from any suitable material. For example, one or more removable or frangible barriers can be formed from a sheet or foil.
[00137] In such embodiments, the aerosol generating device may also comprise a perforating member positioned within the cavity to perforate one or more frangible barriers that seal one of, or both, the first compartment and the second compartment of the article generating the aerosol. aerosol before the first use of the aerosol generating system.
[00138] The drilling element can be formed from any suitable material.
[00139] Where the first compartment and the second compartments are arranged in series within the aerosol generating article, the perforating element is preferably positioned at the center within the cavity of the aerosol generating device, along the main axis of the cavity .
[00140] Where the first compartment and the second compartment of the article are arranged in parallel within the aerosol generating article, the piercing element may comprise a first piercing element within the cavity of the aerosol generating device for piercing the first compartment of the aerosol generating article and a second piercing element positioned within the cavity of the aerosol generating device to pierce the second compartment of the aerosol generating article.
[00141] The volumes of the first compartment and the second compartment can be the same or different from each other. The first compartment must contain sufficient nicotine and the second compartment must comprise a sufficiently volatile distribution enhancement compound to generate multiple doses of aerosol for delivery to a user.
[00142] The aerosol generating article may further comprise a nozzle downstream of the nicotine source and the source of the volatile distribution enhancing compound.
[00143] The aerosol-generating article is preferably substantially cylindrical in shape.
[00144] The aerosol generating article may have a cross section of any suitable shape.
[00145] Preferably, the aerosol generating article is of substantially circular cross-section or substantially elliptical cross-section. More preferably, the aerosol generating article is of substantially circular cross section.
[00146] The aerosol-generating article can simulate the shape and dimensions of a smoking tobacco article, such as a cigarette, a cigar, a cigarillo or a pipe, or a pack of cigarettes. In a preferred embodiment, the aerosol-generating article simulates the shape and dimensions of a cigarette.
[00147] The aerosol generating device comprises a cavity configured to receive the first compartment and the second compartment of the aerosol generating article.
[00148] Preferably, the cavity of the aerosol generating device is substantially cylindrical.
[00149] The cavity of the aerosol generating device can have a cross section in any suitable way. For example, the cavity may have a substantially circular, elliptical, triangular, square, rhomboid, trapezoidal, pentagonal, hexagonal or octagonal diagonal cross-section.
[00150] As used in this document, the term "diagonal cross section" is used to describe the cross section of the cavity perpendicular to the main axis of the cavity.
[00151] Preferably, the cavity of the aerosol generating device has a diagonal cross section with a substantially identical shape to that of the diagonal cross section of the aerosol generating article.
[00152] In certain embodiments, the cavity of the aerosol generating device may have a diagonal cross section of substantially the same shape and dimensions as the diagonal cross section of the aerosol generating article to be received in the cavity in order to maximize the conductive thermal transfer of the aerosol generating device to the aerosol generating article.
[00153] Preferably, the cavity of the aerosol generating device has a substantially circular diagonal cross-section or substantially elliptical diagonal cross-section. More preferably, the cavity of the aerosol generating device has a substantially circular diagonal cross-section.
[00154] Preferably, the length of the aerosol-generating device cavity is less than the length of the aerosol-generating article so that when the aerosol-generating article is received in the aerosol-generating device cavity, the proximal end of the aerosol-generating article aerosol protrudes out of the cavity of the aerosol generating device.
[00155] As used in this document, "length" means the maximum longitudinal dimension between the distal end and the proximal end of the cavity and the aerosol generating article.
[00156] Preferably, the cavity of the aerosol generating device has a diameter substantially identical to or slightly larger than the diameter of the aerosol generating article.
[00157] As used in this document, "diameter" means the maximum transverse dimension of the cavity and the aerosol-generating article.
[00158] The aerosol generating device comprises heating means for heating one or both of the nicotine source and the aerosol generating article distribution enhancing compound source within the cavity.
[00159] The heating means of the aerosol generating device may comprise an external heater positioned over a perimeter of the cavity.
[00160] As used in this document, the term "external heater" refers to a heater that, in use, is positioned externally to an aerosol generating article received in the cavity of the aerosol generating device.
[00161] Alternatively or additionally, the heating means of the aerosol generating device may comprise an internal heater positioned within the cavity.
[00162] As used in this document, the term "internal heater" refers to a heater that, in use, is positioned internally to an aerosol generating article received in the cavity of the aerosol generating device.
[00163] The aerosol generating device can be configured to heat the source of nicotine and / or the source of the distribution improving compound of the aerosol generating article so that a first among the source of nicotine and the source of the improving compound of aerosol distribution has a temperature greater than one second between the source of nicotine and the source of the distribution enhancing compound.
[00164] Differential heating of the source of nicotine and the source of compound for improving the distribution of the aerosol-generating article by means of the aerosol-generating device of the aerosol-generating systems of the invention allows precise control of the amount of nicotine vapor and of the volatile distribution enhancement released from the nicotine source and the volatile distribution enhancement compound source, respectively. This advantageously allows the vapor concentrations of the nicotine and the volatile distribution enhancing compound to be controlled and proportionally balanced in order to yield efficient reaction stoichiometry. This advantageously improves the efficiency of aerosol formation and the consistency of nicotine delivery to a user. This also advantageously reduces the distribution of nicotine vapor and unreacted volatile distribution enhancing compound to a consumer.
[00165] In certain embodiments, the aerosol generating device can be configured to heat the source of nicotine and / or the source of the volatile distribution enhancing compound of the aerosol generating article so that the source of nicotine has a temperature greater than source of the distribution enhancement compound.
[00166] In certain embodiments, the aerosol generating device can be configured to heat the source of nicotine and / or the source of the volatile distribution enhancing compound of the aerosol generating article so that the source of nicotine has a temperature greater than source of the distribution enhancement compound.
[00167] In other embodiments, the aerosol generating device can be configured to heat only the nicotine source of the aerosol generating article so that the nicotine source has a temperature higher than the source of the distribution enhancing compound.
[00168] Preferably, the aerosol generating device is configured to heat the nicotine source of the aerosol generating article to a temperature between about 50 degrees Celsius and about 150 degrees Celsius. In certain embodiments, the aerosol generating device is configured to heat the nicotine source of the aerosol generating article to a temperature between about 50 degrees Celsius and about 100 degrees Celsius.
[00169] Preferably, the aerosol generating device is configured to heat the source of the volatile distribution enhancing compound of the aerosol generating article to a temperature between about 30 degrees Celsius and about 100 degrees Celsius. In certain embodiments, the article generating device is configured to heat the source of the volatile distribution enhancing compound of the aerosol generating article to a temperature between about 30 degrees Celsius and 70 degrees Celsius.
[00170] The aerosol generating device may further comprise a controller configured to control the supply of energy to the heating medium.
[00171] The aerosol generating device may additionally comprise an energy source for supplying energy to a heating medium and a controller configured to control an energy supply for the heating medium. Alternatively, the controller of the aerosol generating device can be configured to control an external power supply to a heating medium.
[00172] The heating medium can be an electric heater powered by an electricity supply. Where the heating medium is an electric heater, the aerosol generating device may additionally comprise an electric power supply and a controller comprising electronic circuits configured to control the electric power supply from the electric power supply to the electric heater.
[00173] The power supply can be a source of DC voltage. In preferred modalities, the energy supply is a battery. For example, the power supply can be a nickel-metal hydride battery, a nickel-cadmium battery or a lithium-based battery, for example, lithium-cobalt, lithium-iron-phosphate, or a lithium polymer battery . The power supply may alternatively be another form of charge storage device, such as, for example, a capacitor. The energy supply may require recharging and may have a capacity that allows sufficient energy storage for the use of the aerosol generating device with one or more aerosol generating articles.
[00174] Alternatively or additionally, the heating medium can comprise a non-electric heater such as a chemical-chemical heating medium.
[00175] The heating means of the aerosol generating device may comprise one or more heating elements.
[00176] The one or more heating elements can extend fully or partially along the length of the cavity.
[00177] The heating means of the aerosol generating device may comprise one or more internal heating elements.
[00178] Alternatively or additionally, the heating means of the aerosol generating device may comprise one or more external heating elements. The one or more external heating elements may extend fully or partially around the circumference of the cavity.
[00179] In such modalities, the external heater can be configured so that the one or more heating elements are in direct thermal contact with the aerosol generating article. Alternatively, the heating means can be configured so that the one or more external heating elements are positioned close to the aerosol generating article without coming into contact with it. In other embodiments, the heating medium can be configured so that the one or more external heating elements are in indirect thermal contact with the aerosol generating article.
[00180] Preferably, the one or more heating elements are heated electrically. However, other heating schemes can be used to heat one or more heating elements. For example, one or more external heating elements can be heated by conduction from another heat source. Alternatively, each heating element can comprise an infrared heating element, a photonic source, or an inductive heating element.
[00181] Each external heating element may comprise a heat sink, or heat reservoir that comprises material capable of absorbing and storing heat and subsequently releasing heat over time. The heat sink can be formed from any suitable material, such as, for example, a suitable metallic or ceramic material. Preferably, the material has a high thermal capacity (sensitive heat storage material), or is a material capable of absorbing and subsequently releasing the value through a reversible process, such as, for example, a high temperature phase change. Suitable sensitive heat storage materials include silica gel, alumina, carbon, glass mat, fiberglass, minerals, a metal or metal alloy such as aluminum, silver or lead and a cellulosic material, such as paper. Other suitable materials that release heat through a reversible phase change include paraffin, sodium acetate, naphthalene, wax, polyethylene oxide, a metal, a metal salt, a mixture of eutectic salts or an alloy.
[00182] The heatsink or heat reservoir can be arranged so as to be directly in contact with the aerosol generating article and can transfer the stored heat directly to one or both of the nicotine source and the source of the compost enhancement compound. volatile distribution of the aerosol-generating article. Alternatively, the heat stored in the heat sink or heat sink can be transferred to one or both of the nicotine source or the source of the volatile distribution enhancement compound of the aerosol-generating article by means of a thermal conductor, such as, for example , a metal tube.
[00183] In a preferred mode, each external heating element comprises a material with electrical resistance. Each heating element may comprise a non-elastic material, for example, a sintered ceramic material, such as alumina (Al2O3) and silicon nitride (Si3N4), or printed circuit board or silicon rubber. Alternatively, each heating element may comprise an elastic material, metallic material, for example, an iron alloy or a nickel-chromium alloy. The one or more heating elements can be flexible heating sheets on a dielectric substrate, such as polyimide. Where the heating means comprises one or more heating elements, flexible heating sheets can be formed to conform to the perimeter of the cavity of the aerosol generating device. Alternatively, the one or more heating elements may be a metal grid or grids, flexible printed circuit boards or flexible carbon fiber heaters.
[00184] Other suitable electrically resistive materials include, but are not limited to: semiconductors such as doped ceramics, electrically "conductive" ceramics (such as, for example, molybdenum disilicate), carbon, graphite, metal and metal alloys and materials composites made from a ceramic material and a metallic material. Such composite materials can comprise doped or non-doped ceramics. Examples of suitable doped ceramics include doped silicon carbides. Examples of suitable metals include titanium, zirconium, tantalum and metals of the platinum group. Examples of suitable metal alloys include stainless steel, nickel, cobalt, chromium, aluminum, titanium, zirconium, hafnium, niobium, molybdenum, tantalum, tungsten, tin, gallium and manganese alloys, and nickel, iron, cobalt, stainless steel, Timetal® and ferro-manganese-aluminum alloys. Timetal® is a registered trademark of Titanium Metals Corporation, 1999 Broadway Suite 4300, Denver, Colorado. In composite materials, the electrically resistive material can optionally be embedded in, encapsulated in or coated with insulating material or vice versa, depending on the energy transfer kinetics and the required external physicochemical properties.
[00185] The aerosol generating device may comprise: a first temperature sensor configured to detect the temperature of the nicotine source of the aerosol generating article; and a second temperature sensor configured to detect the temperature of the second source compartment of the volatile distribution enhancement compound.
[00186] In these modalities, the controller can be configured to control an energy supply to one or more heating elements based on the temperature of the nicotine source of the aerosol-generating article detected by the first temperature sensor and the temperature of the source of the compound of improving the volatile distribution of the aerosol-generating article detected by the second temperature sensor.
[00187] The heating medium can comprise one or more heating elements formed from a metal with a defined relationship between temperature and resistivity. In such embodiments, the metal can be formed as a rail between two layers of suitable insulation materials. Heating elements formed in this way can be used both to heat and to monitor the temperature of the nicotine source and the source of the volatile distribution enhancing compound of the aerosol generating article.
[00188] In certain embodiments, the aerosol generating device may comprise: a first heating element configured to heat the nicotine source of the aerosol generating article; and a second heating element configured to heat the source of the volatile distribution enhancing compound of the aerosol generating article; and a controller configured to control a power supply to the first heating element and the second heating element, so that the first heating element has a higher temperature than the second heating element.
[00189] In other embodiments, the aerosol generating device may comprise: one or more external heating elements; a first heat transfer element positioned between the one or more heating elements and the cavity; and a second heat transfer element positioned between the one or more heating elements and the cavity, wherein the first heat transfer element has less thermal conductivity than the second heat transfer element.
[00190] In other embodiments in which the aerosol generating article comprises a first compartment comprising the source of nicotine and a second compartment comprising the source of the volatile distribution enhancing compound, the first compartment of the aerosol generating article may have thermal conductivity smaller than the second compartment of the aerosol-generating article.
[00191] The first compartment and the second compartment can be formed from different materials. The first compartment can be formed from a first material and the second compartment can be formed from a second material, in which the bulk thermal conductivity of the second material is less than the bulk thermal conductivity of the first material.
[00192] The first compartment can be formed from a conductive material. For example, the first compartment can be formed from a material with bulk thermal conductivity greater than about 15 W per meter Kelvin (W / (m ^ K)) at 23 ° C and 50% relative humidity, such as measured using the modified transient plane source (MTPS) method.
[00193] The second compartment can be formed from an insulating material. For example, the second compartment can be formed from a material with bulk thermal conductivity of less than about 5W per meter Kelvin (W / (m ^ K)) at 23 ° C and 50% relative humidity as measured using the modified transient plan source method (MTPS).
[00194] Alternatively, or in addition to this, the first compartment and the second compartment may be of different construction. For example, the thickness of a perimeter of the second compartment may be greater than the thickness of a perimeter of the first compartment, so that the second compartment has a lower thermal conductivity than the first compartment.
[00195] In such embodiments, where the heating means of the aerosol generating device comprises an external heater, the heat transfer from the external heater to the second compartment of the aerosol generating article is less than transferring from the external heater of the aerosol generating device. for the first compartment of the aerosol-generating article due to the lower thermal conductivity of the second compartment compared to the first compartment. This results in the first compartment of the aerosol generating article having a temperature lower than the second compartment of the aerosol generating article.
[00196] For the avoidance of doubt, the characteristics described above in relation to one embodiment of the invention may also be applicable to another embodiment of the invention. In particular, the features described above with respect to the aerosol generating systems according to the invention can also relate, where appropriate for aerosol generating articles, aerosol generating devices for use in aerosol generating systems according to the invention and vice versa.
[00197] The invention will be described below with reference to the attached figures in which:
[00198] Figures 1a and 1b show schematic longitudinal cross sections of an aerosol generating system according to a first embodiment of the invention comprising an aerosol generating article and an aerosol generating device;
[00199] Figures 2a and 2b show schematic longitudinal cross sections of an aerosol generating system according to a second embodiment of the invention comprising an aerosol generating article and an aerosol generating device;
[00200] Figures 3a and 3b show schematic longitudinal cross sections of an aerosol generating system according to a third embodiment of the invention; and
[00201] Figures 4a and 4b show schematic longitudinal cross sections of an aerosol generating system according to a fourth embodiment of the invention.
[00202] Figures 1a and 1b schematically show an aerosol generating system according to a first embodiment of the invention comprising an aerosol generating article 2 and an aerosol generating device 4. The aerosol generating article 2 has an elongated cylindrical housing comprising a first compartment 6 comprising a nicotine source 8, a second compartment 10 comprising a source of volatile distribution enhancing compound 12 and a third compartment 14. As shown in Figure 1, the first compartment 6, the second compartment 10 and the third compartment 14 are arranged in series and in coaxial alignment within the aerosol generating article 2. The first compartment 6 is located at the distal end of the aerosol generating article 2. The second compartment 10 is located immediately downstream of and is contiguous to the first compartment 6. The third compartment 14 is located downstream of the second compartment 10 at the proximal end of the aerosol generating article 2. Instead of or in addition to the third compartment 14, the aerosol generating article 2 may comprise a mouth at the proximal end thereof.
[00203] The aerosol generating device 4 comprises a housing comprising an elongated cylindrical cavity in which the aerosol generating article 2 is received, a power source 16, a controller 18 and an internal heater 20. The power source 16 is a battery and the controller 18 comprises electronic circuits and is connected to the power supply 16 and the internal heater 20.
[00204] The length of the cavity is less than the length of the aerosol generating article 2 so that the proximal end of the aerosol generating article 2 protrudes from the cavity. The internal heater 20 is positioned centrally within the cavity of the aerosol generating device 4 and extends along the main axis of the cavity. In use, as the aerosol generating article 2 is inserted into the cavity of the aerosol generating device 4 the internal heater 20 is inserted into the first compartment 6 and the second compartment 10 of the aerosol generating article 2.
[00205] As shown in Figure 1b, the first compartment 6 comprising the source of nicotine 8 is located in the first portion 22 of the housing of the aerosol-generating article 2 and the second compartment 10 comprising the source of volatile distribution enhancing compound 12 is located in a second portion 24 of the housing of the aerosol-generating article 2.
[00206] A plurality of first openings is provided at the end downstream of the first compartment 6 of the aerosol generating article 2, a plurality of the second openings is provided at the upstream end and downstream of the compartment 10 of the aerosol generating article 2 and a plurality of third openings are provided at the upstream end of the third compartment 14 of the aerosol generating article 2.
[00207] The second portion 24 of the aerosol-generating article 2 housing is rotatable with respect to the first portion 22 of the aerosol-generating article housing 2 between an open position and a closed position.
[00208] In the open position the plurality of second openings at the upstream end of the second compartment 10 are aligned with the plurality of first openings at the downstream end of the first compartment 6 and the plurality of second openings at the downstream end of the second compartment 10 are aligned with the plurality of third openings at the upstream end of the third compartment 14.
[00209] In the open position, a stream of air can be drawn into the housing of the aerosol-generating article 2 through the air inlet at the distal end thereof, together with an air flow route through the housing between the inlet. air and the air outlet at the proximal end of the aerosol generating article 2 and out of the housing of the aerosol generating article 2 through the air outlet. The air stream drawn along the airflow route through the housing between the air inlet and the air outlet passes through the first compartment 6, the second compartment 10 and the third compartment 14 of the aerosol generating article 2 through the plurality of first openings at the downstream end of the first compartment 6, the plurality of second openings at the upstream end of the second compartment 10, the plurality of second openings at the right end of the second compartment 10 and the plurality of third openings at the end a amount of third compartment 14.
[00210] As the air stream is swallowed along the air flow route through the housing between the air inlet and the air outlet, nicotine vapor is released from the nicotine source in the first compartment 6 into the air stream and the volatile distribution enhancement compound vapor is released from the distribution enhancement compound source in the second compartment 10 in the air stream. The nicotine vapor reacts with the vapor of the volatile distribution enhancement compound in the gas phase in the second compartment 10 and the third compartment 14 to form an aerosol, which is distributed to the user through the air outlet at the proximal end of the aerosol generating article. two.
[00211] In the closed position the plurality of second openings at the upstream end of the second compartment 10 of the aerosol generating article 2 are misaligned with the plurality of first openings at the downstream end of the first compartment 6 of the aerosol generating article 2. In the position closed, the plurality of second openings at the downstream end of the second compartment 10 of the aerosol generating article 2 can also be misaligned with the plurality of third openings at the downstream end of the third compartment 14 of the aerosol generating article 2.
[00212] Misalignment of the plurality of first openings at the end downstream of the first compartment 6 and the plurality of the second openings at the end upstream of the second compartment 10 in the closed position obstructs the air flow route through the housing of the aerosol generating article 2 between the air inlet and the air outlet. This prevents an air stream from being drawn into the housing of the aerosol-generating article 2 through the air inlet, along the airflow route through the housing of the aerosol-generating article 2 between the air inlet and the air outlet, and out of the housing of the aerosol generating article 2 through the air outlet in the closed position.
[00213] Figures 2a and 2b schematically show an aerosol generating system according to a second embodiment of the invention comprising an aerosol generating article 2 and an aerosol generating device 4.
[00214] The aerosol generating device 4 of the aerosol generating system according to the second embodiment of the invention, shown in Figures 2a and 2b, has a construction and operation similar to that of the aerosol generating device 4 of the aerosol generating system according to with the first embodiment of the invention shown in Figures 1a and 1b. However, in the aerosol generating device of the aerosol generating system, according to the second embodiment of the invention, the internal heater 20 has a reduced length so that, according to the aerosol generating article 2, it is inserted into the cavity of the aerosol generating device 4, the internal heater 20 is only inserted in the first compartment 6 of the aerosol generating device 2.
[00215] The aerosol generating article 2 of the aerosol generating system according to the second embodiment of the invention shown in Figures 2a and 2b has general construction similar to the aerosol generating article 2 of the aerosol generating system according to the first embodiment of the invention shown in Figures 1a and 1b, and comprising a first compartment 6 comprising a source of nicotine 8, a second compartment 10 comprising a source of volatile distribution enhancing compound 12, and a third compartment 14, which is arranged in series and in coaxial alignment with the housing of the aerosol generating article 2. However, in the aerosol generating system of the aerosol generating system according to the second embodiment of the invention, the first compartment 6 comprises the nicotine source 8, the second compartment 10 comprises the source of the volatile distribution enhancing compound 12 and the third compartment 14 is located in a first cylindrical vapor the elongated 22 of the housing of the aerosol generating system 2. The first portion 22 of the housing of the aerosol generating article 2 is partially surrounded by a second elongated cylindrical portion 24 of the housing of the aerosol generating article 2.
[00216] As shown in Figures 2a and 2b, a plurality of first openings are provided on the surface of the first portion 22 of the housing overlying the first compartment 6 and the second compartment 10 and a plurality of second openings are provided on the surface of the second portion 24 of the carcass.
[00217] The first portion 22 of the housing and the second portion 24 of the housing are slidable with respect to each other along the longitudinal axis of the aerosol generating article 2 between an open position (shown in Figure 2a) and a closed position (shown in Figure 2b).
[00218] In the open position, shown in Figure 2a, the second portion 24 of the housing does not involve the plurality of first openings provided on the surface of the first portion 22 of the housing overlying the first compartment 6 and the plurality of second openings in the second portion 24 of the housing are aligned with the plurality of first openings in the first portion 22 of the housing overlying the second compartment 10.
[00219] In the open position, a stream of air can be drawn into the aerosol generating system through an air inlet at the distal end thereof, together with an air flow route through the aerosol generating system between the inlet. of air and the air outlet at the proximal end of the aerosol generating system, and out of the aerosol generating system through the air outlet. The air stream drawn along the air flow route through the aerosol generating system between the air inlet and the air outlet passes through the first compartment 6, the second compartment 10 and the third compartment 14 of the aerosol generating article 2 .
[00220] As the air flow is swallowed along the air flow route through the aerosol generating system between the air inlet and the air outlet, the nicotine vapor is released from the nicotine source in the first compartment 6 in the air flow through the plurality of first openings in the surface of the first portion 22 of the housing overlying the first compartment 6. As the air flow is swallowed along the air flow route through the aerosol generating system between the air inlet air and the air outlet, the vapor of the volatile distribution enhancement compound is also released from the source of the volatile distribution enhancement compound in the second compartment 10 in the air stream through the plurality of first openings in the surface of the first portion 22 from the carcass overlying the second compartment 10 and the plurality of second openings on the surface of the second portion 24 of the carcass. The nicotine vapor reacts with the vapor of the distribution enhancement compound in the gas phase to form an aerosol that is delivered to the user through the air outlet at the proximal end of the aerosol generating system.
[00221] In the closed position, shown in Figure 2b, the second portion 24 of the housing involves the plurality of first openings provided on the surface of the first portion 22 of the housing overlying the first compartment 6 and the plurality of second openings in the second portion 24 of the carcass are misaligned with the plurality of first openings in the first portion 22 of the carcass overlying the second compartment 10.
[00222] In the closed position, the obstruction of the plurality of first openings provided on the surface of the first portion 22 of the housing overlying the first compartment 6 by the second portion 24 of the housing and the misalignment of the plurality of first openings of the first portion 22 of the housing overlying the housing second compartment 10 and the plurality of second openings on the surface of the second vapor 24 of the housing prevents the release of nicotine vapor from the nicotine source in the first compartment 6 and the release of the vapor from the volatile distribution enhancing compound from the source of the compound of improvement of volatile distribution in the second compartment 10 in the air stream swallowed along the air flow route through the aerosol generating system between the air inlet and the air outlet.
Figures 3a and 3b show schematically an aerosol generating system according to a third embodiment of the invention comprising a housing with a first portion 22 and a second portion 24.
[00224] The first portion 22 of the housing comprises a first air inlet 26a, a second air inlet 26b and an air outlet 28. As shown in Figures 3a and 3b, a source of nicotine 8 and a source of the breeding compound of volatile distribution 12 are arranged in parallel within the first portion 22 of the housing with the nicotine source 8 downstream of the first air inlet 26a and upstream of the air outlet 28 and the source of the volatile distribution improvement compound 12 downstream of the second air inlet 26b and upstream of the air outlet 28.
[00225] The second portion 24 of the housing is a removable cover that is configured to fit over the distal end of the first vapor 22 of the housing.
[00226] The first portion 22 of the housing and the second portion 24 of the housing are slidable, in relation to each other, between an open position (shown in Figure 3b) and a closed position (shown in Figure 3a).
[00227] In the open position, the second portion 24 of the housing is separated from the first portion 22 of the housing.
[00228] As illustrated by the arrows in Figure 3b, when in the open position, a first flow of air is drawn into the first vapor 22 of the housing, through the first air inlet 26a and along the air flow route through the first portion 22 of the housing between the first air inlet 26a and the air outlet 28, passes through the nicotine source 8 and a second flow of air drawn into the first portion 22 of the housing, through the second air inlet 26b and along the airflow route through the first portion 22 of the housing between the second air inlet 26b and the air outlet 28, passes through the source of the volatile distribution enhancement compound 12. The nicotine vapor in the first air flow reacts with the vapor from the volatile distribution enhancing compound in the second air flow in the gas phase to form an aerosol, which is delivered to a user via the air outlet 28.
[00229] In the closed position, the second portion 24 of the housing is disposed on the distal end of the first portion 22 of the housing.
[00230] As shown in Figure 3a, in the closed position the first air inlet 26a and the second air inlet 26b of the first portion 22 of the housing are obstructed by the second portion 24 of the housing. This prevents an air flow from being drawn into the first portion 22 of the housing of the aerosol generating article 2 through the first air inlet 26a and the second air inlet 26b.
[00231] Figures 4a and 4b show schematically an aerosol generating system according to a fourth embodiment of the invention;
[00232] The aerosol generating system according to the fourth embodiment of the invention, shown in Figures 4a and 4b, has a construction and operation similar to the aerosol generating system according to the third embodiment of the invention shown in Figures 3a and 3b. However, in the aerosol generating system according to the fourth embodiment of the invention, the first portion 22 of the housing comprises a single air inlet 26 and an air outlet 28 and the nicotine source 8 and the distribution enhancing compound source. volatile 12 are arranged in parallel within the first portion 22 of the housing with the nicotine source 8 and the volatile distribution enhancing compound source 12 both downstream of the air inlet 26 upstream of the air outlet 28.
[00233] As illustrated by the arrows in Figure 4b, when in the open position, a first portion of an air flow engulfed into the first portion 22 of the housing, through the air inlet 26 and along the air flow route through from the first portion 22 of the carcass between the air inlet 26 and the air outlet 28, passes through the nicotine source 8 and a second portion of the air flow drawn into the first portion 22 of the carcass, through the air inlet 26 and along the airflow route through the first portion 22 of the housing between the air inlet 26 and the air outlet 28, it passes through the source of the volatile distribution enhancement compound 12. The nicotine vapor in the first air flow reacts with the vapor of the volatile distribution enhancement compound in the second portion of the air flow in the gas phase to form an aerosol, which is distributed to a user via the air outlet 28.

权利要求:
Claims (15)
[0001]
1. Aerosol generating system characterized by the fact that it comprises a housing that has a first portion (22) and a second portion (24), the housing comprising: an air inlet (26, 26a, 26b); a source of nicotine (8); a source of volatile distribution enhancing compound (12); an air outlet (28), in which the first portion (22) of the housing and the second portion (24) of the housing are movable relative to each other between an open position in which the nicotine source (8) and the source of volatile distribution enhancement compound (12) are both in fluid communication with an airflow route through the housing between the air inlet (26, 26a, 26b) and the air outlet (28) and a closed position in which either the airflow route, through the housing between the air inlet (26, 26a, 26b) and the air outlet (28), is obstructed, or the source of nicotine (8) and the source of volatile distribution enhancement compound (12) are not both in fluid communication with the airflow route through the housing between the air inlet (26, 26a, 26b) and the air outlet (28) or both.
[0002]
2. Aerosol generating system, according to claim 1, characterized by the fact that the source of nicotine (8) and the source of the volatile distribution improvement compound (12) are arranged in series inside the housing that, when in an open position, an air flow swallowed along the air flow route, through the housing between the air inlet (26, 26a, 26b) and the air outlet (28), passes through a first source between the source of nicotine (8) and the source of the volatile distribution enhancement compound (12) and then go through a second source between the source of nicotine (8) and the source of the volatile distribution enhancement compound (12) ).
[0003]
3. Aerosol generating system according to claim 1 or 2, characterized by the fact that the source of nicotine (8) and the source of the volatile distribution enhancing compound (12) are not in fluid communication with each other. another in the closed position.
[0004]
Aerosol generating system according to any one of claims 1 to 3, characterized in that the first portion (22) of the housing and the second portion (24) of the housing are slidable, in relation to each other, between the closed position and the open position.
[0005]
Aerosol generating system according to any one of claims 1 to 3, characterized in that the first portion (22) of the housing and the second portion (24) of the housing are rotatable, in relation to each other, between the closed position and the open position.
[0006]
An aerosol generating system according to any one of claims 1 to 5, characterized by the fact that it further comprises: one or more first openings in the first portion (22) of the housing; one or more second openings in the second portion (24) of the housing; and, when in the open position, one or more first openings in the first portion (22) of the housing and one or more second openings in the second portion (24) of the housing are substantially aligned and, when in the closed position, one or more further first openings in the first portion (22) of the housing and one or more second openings in the second portion (24) of the housing are substantially misaligned.
[0007]
Aerosol generating system according to any one of claims 1 to 6, characterized by the fact that the source of nicotine (8) and the source of compound for improving volatile distribution (12) are both located in the first portion (22) of the housing.
[0008]
8. Aerosol generating system, according to claim 7, characterized by the fact that the first portion (22) of the housing comprises the air inlet (26, 26a, 26b) and the air outlet (28) and wherein the first portion (22) of the housing and the second portion (24) of the housing are movable with respect to each other between an open position in which the source of nicotine (8) and the source of volatile distribution enhancing compound ( 12) are both in fluid communication with an airflow route through the first portion (22) of the housing between the air inlet (26, 26a, 26b) and the air outlet (28) and a closed position in which a or both air inlets (26, 26a, 26b) and air outlets (28) are obstructed by the second portion (24) of the housing.
[0009]
Aerosol generating system according to claim 7 or 8, characterized in that the second portion (24) of the housing is separated from the first portion (22) of the housing in the open position.
[0010]
Aerosol generating system according to any one of claims 1 to 6, characterized by the fact that a first source between the source of nicotine (8) and the source of the volatile distribution enhancing compound (12) is located in the first portion (22) of the housing and a second source between the source of nicotine (8) and the source of the volatile distribution enhancing compound (12) is located in the second portion (24) of the housing.
[0011]
Aerosol generating system according to any one of claims 1 to 10, characterized in that the housing comprises a first compartment (6) comprising the nicotine source (8) and a second compartment (10) comprising the source of volatile distribution enhancement compound (12).
[0012]
Aerosol generating system, according to claim 11, characterized by the fact that one or both of the first compartment (6) and the second compartment (10) are initially sealed by one or more frangible seals.
[0013]
Aerosol generating system according to any one of claims 1 to 12, characterized in that the volatile distribution enhancing compound comprises an acid.
[0014]
14. Aerosol generation system, according to king-vindication 13, characterized by the fact that the acid is selected from the group consisting of lactic acid, 3-methyl-2-oxovaleric acid, pyruvic acid, 2-oxovaleric acid, 4-methyl-2-oxovaleric, 3-methyl-2-oxobutanoic acid, 2-oxo-octanoic acid and combinations thereof.
[0015]
Aerosol-generating system according to any one of claims 1 to 14, characterized in that it comprises: an aerosol-generating article (2) comprising the source of nicotine (8) and the source of the drug-improving compound volatile distribution (12); and an aerosol generating device (4) comprising: a cavity configured to receive the source of nicotine (8) and the source of the volatile distribution enhancing compound (12) of the aerosol generating article (2); heating means (20) to heat one or both of the nicotine source and the volatile distribution enhancing compound source of the aerosol generating article within the cavity.

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同族专利:

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EP2978328B1|2016-10-19|

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LT2978328T|2016-12-12|

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AU2014286179A1|2015-11-26|

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CA2916575C|2021-07-06|

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JP6496312B2|2019-04-03|

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US20160286862A1|2016-10-06|

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BR112015030606A2|2017-07-25|

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AU2014286179B2|2018-06-21|

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RU2016102807A3|2018-03-02|

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TWI636825B|2018-10-01|

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RU2665447C2|2018-08-29|

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WO2015000974A1|2015-01-08|

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PL2978328T3|2017-07-31|

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CN105307522A|2016-02-03|

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CN105307522B|2020-10-30|

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UA117370C2|2018-07-25|

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JP2016523096A|2016-08-08|

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NZ713714A|2019-02-22|

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MY176174A|2020-07-24|

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RU2016102807A|2017-08-04|

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KR20160029743A|2016-03-15|

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PH12015502490B1|2016-02-22|

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法律状态:
2018-11-06| B06F| Objections, documents and/or translations needed after an examination request according [chapter 6.6 patent gazette]|

---

2020-02-11| B06U| Preliminary requirement: requests with searches performed by other patent offices: procedure suspended [chapter 6.21 patent gazette]|

---

2020-12-22| B09A| Decision: intention to grant [chapter 9.1 patent gazette]|

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2021-03-02| B16A| Patent or certificate of addition of invention granted [chapter 16.1 patent gazette]|Free format text: PRAZO DE VALIDADE: 20 (VINTE) ANOS CONTADOS A PARTIR DE 02/07/2014, OBSERVADAS AS CONDICOES LEGAIS. |

优先权:

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申请号 | 申请日 | 专利标题

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EP13174941.8|2013-07-03|

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EP13174941|2013-07-03|

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---