• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    The invention relates to a tank for storing liquid or gaseous media under pressure, comprising an inner casing (14) defining a storage chamber, said inner casing (14) comprising an opening (15), a base (13) placed in the level of said opening (15) for providing the inner / outer connection of said tank and a mechanical reinforcing shell (17) surrounding at least said inner shell (14), said base (13) having a hollow cylindrical neck portion (18) defining an inner channel (19) and an annular portion (20) comprising a lower surface constituting the lower surface of said base (13), said lower surface being placed opposite a contact surface (26) of said inner envelope (14). According to the invention, said base (13) comprises in its thickness at least one vent (29,35) separate from said channel, said at least one vent (29,35) opening at a first of its ends to the lower surface of said annular portion (20) and at its other end in said channel (19) inside so as to ensure the evacuation of the gas having passed through the wall of the inner casing (14).
    公开号:FR3015630A1
    申请号:FR1363271
    申请日:2013-12-20
    公开日:2015-06-26
    发明作者:Guillaume Fourage；Laurent Lagunegrand
    申请人:EADS Composites Aquitaine；
    IPC主号:
    专利说明:

    [0001] BACKGROUND OF THE INVENTION Field of the Invention The present invention relates to a tank for storing liquid or gaseous media under pressure. The invention also relates to a transport means such as an automobile or an aircraft, equipped with at least one such tank. TECHNOLOGICAL BACKGROUND The high calorific value of hydrogen and its conversion into water vapor, therefore non-polluting, when used in an engine, make this gas a promising alternative energy to fossil fuels. A great deal of research is being conducted to ensure the safe and large volume transport of hydrogen for the purpose of fueling hybrid vehicles. For their transport, such gases are typically compressed in tanks intended for the storage of gas under high pressure (between 200 and 1000 bars for example), most often cylindrical, which are closed by domes each provided with or without tip. To resist the high pressures of the gases thus stored, these tanks comprise a liner placed in a reinforcing envelope made of composite material. Conventionally, the deposition of the fibers and the resin to form the reinforcing envelope is achieved by a filament winding.
    [0002] The tanks can thus be of several types, either with a metal liner covered with a layer of composite on its central part (Type II), or with a metal liner entirely covered with composite (Type III), or with a plastic liner covered with composite (Type IV). The main advantages of thermoplastic liners over metal liners lie in their lower weight and a higher mechanical resistance to cyclic stresses. However, for Type IV tanks, degradations of the casing by permanent deformation of the polymer liner were observed when the emptying rate was too high. This phenomenon is commonly called "collapse" or "blistering" of the liner. One of the possible reasons for this phenomenon is the relative permeability to the stored gas of the constituent polymeric material of the liner. Part of the gas initially stored inside the liner thus passes through the wall of the liner. However, in conventional tanks, the liner is bonded to the reinforcing envelope which prevents the evacuation to the outside of the gas having passed through the wall of the liner, which is therefore trapped. There is formation of 20 gas pockets between the outer surface of the liner and the inner surface of the reinforcing shell. When emptying the tank, a pressure difference can be created between the gap with the pockets of gas and the interior volume of the liner leading to the formation of blisters. These blisters disappear after refilling of the reservoir to reappear at a later use of the reservoir. Such permanent deformation can lead to cracks or cracks in the liner wall, which can lead to tank damage and dangerous leaks. In order to overcome this disadvantage, it has been proposed to make composite tanks for pressurized gases provided with gas evacuation paths having passed through the wall of the liner to the outside. In particular, it is known from the state of the art, a reservoir comprising a base equipped with a valve, the assembly consisting of this base and this valve having a gas evacuation zone having passed through the wall of the liner to the atmosphere, which passes through the thickness of the valve body.
    [0003] However, the realization of such a base / valve assembly is particularly laborious because it requires the creation of a plurality of openings to define the evacuation zone, for which it is necessary to ensure their setting in communication of fluid. Furthermore, this assembly requires the implementation of additional parts such as several seals. This results in additional manufacturing costs and a great complexity of the tank. In addition, this gas evacuation zone opens at the outer surface of the base in contact with or placed in the immediate vicinity of the reinforcing envelope made of composite material. However, during the manufacture of such a reservoir, a creep of the resin is observed which can come to block the gas evacuation zone and thus render the latter inoperative. The present invention aims at overcoming these various disadvantages of the prior art by proposing a gas storage tank under simple pressure in its design and in its operating mode, which is economical and allows the filling, storage and emptying of a gas. under pressure without risk of deterioration thereof. Another object of the present invention is a tank provided with a gas evacuation zone having passed through the wall of the liner, which is protected from any pollution external to the tank. BRIEF DESCRIPTION OF THE INVENTION To this end, the invention relates to a reservoir for the storage of liquid or gaseous media under pressure, comprising an inner envelope defining a storage chamber, said inner envelope comprising an opening, a base placed at the level of said opening for providing the inner / outer connection of said reservoir and a mechanical reinforcing envelope surrounding at least said inner envelope, said base including a hollow cylindrical neck portion defining an inner channel and an annular portion comprising a lower surface constituting the surface bottom of said base, said lower surface being placed opposite a contact surface of said inner casing. According to the invention, said base comprises at least one vent distinct from the inner channel, said at least one vent opening at a first end thereof to the lower surface of said annular portion and at its other end in said inner channel so as to ensure the evacuation of the gases having passed through the wall of the inner envelope.
    [0004] Of course, the first end of said at least one vent is in fluid communication with the gap, or gap, separating the outer surface of said inner shell from the inner surface of said storage tank reinforcement shell to provide the evacuation of gases having passed through the wall of the inner envelope.
    [0005] The vent, which is thus formed in the thickness of the base, is internal to the body of the base and opens at its two ends on external areas of the base which are not in communication with the reinforcing envelope. mechanical. This advantageously prevents any risk of obstruction or vents during the manufacture of the tank. The lower surface of the base is, moreover, placed vis-à-vis a contact surface of the inner casing so that the latter is placed under the base. This base may be entirely metal or alloy, or comprise a metal insert or alloy covered at least in part with a plastic interface to facilitate the assembly of the inner casing and the base. Alternatively, this base can be made of plastic or reinforced plastic material. As a purely illustrative example, the plastic is reinforced with short or long fibers or crushed, or with beads. These fibers and beads may be glass or carbon. Such a base thus advantageously makes it possible: to evacuate in an easy manner the gases which have passed through the wall of the inner casing at the level of the internal channel of the base, which opens out on the outside of the tank, and to avoid any deterioration of the mechanical resistance of the tank even in case of accelerated emptying of its contents. The mechanical reinforcing envelope is disposed on at least a portion of the inner envelope surrounding it.
    [0006] The present reservoir finds applications in the fields using pressure storage containers such as the automobile, aeronautics, etc.
    [0007] In various particular embodiments of this reservoir, each having its particular advantages and capable of many possible technical combinations: the inner envelope has an opening at its two ends, each of its ends receiving a base.
    [0008] As a purely illustrative example, a first of these bases comprises a connection such as a valve, the other end comprising a member selected from the group comprising a valve, a pressure sensor and / or temperature and / or humidity, an accelerometer, a safety device, a PRD-type safety device ("Pressure Relief Device"), a TPRD ("Thermal Pressure Relief Device") thermal expansion ") and combinations of these elements. Alternatively, the inner casing has at one of its ends an opening, the other end being closed and the open end receiving a base. this inner channel comprising an upper channel portion called the non-storage pressure portion, and a lower channel portion, called a storage pressure portion, said portions being delimited or intended to be delimited by a seal, said at least one a vent 25 opens at its first end into said upper channel portion. This seal typically seals between a fitting such as a valve or a valve, and the base. It can be an O-ring or O-ring. said at least one vent opens at its second end onto a portion of said lower surface distinct from the periphery of said annular portion. said vent or at least some of said vents are each formed by an opening made in the thickness of said base. Preferably, this base comprises at least two conduits regularly distributed around said channel and joining the lower surface of said annular portion.
    [0009] These conduits can join obliquely the lower surface of the annular portion. Advantageously, these ducts are tubular. said base comprising a metal or alloy insert of which at least part of its surface is covered with a plastic interface, a first part of this plastic interface forms the lower surface or partially the lower surface of said annular part and a second part said interface at least partially covers the upper surface of said annular portion.
    [0010] Advantageously, the inner envelope comprising a neck, the collar portion of the base comprises in its lower part from which the annular portion extends radially, a cylindrical annular groove and the plastic interface comprises a hollow tubular portion. received at least in this annular groove, said hollow tubular portion comprising an assembly zone with said collar of the inner casing. As a purely illustrative example, the assembly between the neck of the inner casing, or liner, and the base can be achieved by gluing or welding such as rotary friction welding. In the first case, the assembly area of the plastic interface has an annular recess. In the second case, this assembly zone comprises a welding interface complementary to a welding interface of the neck of the inner envelope so as to ensure the fusion of said interfaces when the plastic interface and the inner envelope are assembled by rotary friction. this base is only metal or alloy or comprises a metal or alloy insert at least a part of its surface is covered with a plastic interface, at least a portion of the lower surface of said annular portion adjacent to said channel being no covered by said plastic interface.
    [0011] This base can then comprise at least two conduits regularly distributed around said channel and joining the bottom surface of said annular portion obliquely. Preferably, these ducts are tubular ducts. Alternatively, this base comprises a first base portion integral only with said inner envelope and a second base portion integral only with said mechanical reinforcing envelope, said first and second base portions being distinct and not interconnected, said vent being formed by the space separating said base portions.
    [0012] Preferably, each of said base portions comprising a portion of said neck portion and a portion of said annular portion, and said second base portion being fixed, said first base portion is movable relative to said second portion of said base portion; a base between said first full tank position where said inner casing is filled and under pressure, said first base portion is at least partially in contact with said second base portion, the free end of the portion portion of neck of the first base portion being set back from the free end of the portion of the neck portion of the second base portion, and a second position called empty reservoir, wherein said inner envelope being empty of its contents the free end of the neck portion portion of said first base portion is surrounded at least in part by the neck portion portion of the second neck portion e such that said neck portion portions of said base portions remain engaged at least partially in each other.
    [0013] Of course, the first base portion can explore any position between these two extreme positions depending on the empty state of the inner envelope. Similarly, in the second so-called empty reservoir position, the portion of said annular portion of the first base portion is placed at a distance from the portion of said annular portion of the second base portion. Advantageously, the first base portion comprises a portion of conical male neck portion and the second base portion comprises a portion of conical female neck portion, said conical neck portion portions cooperating with each other to define said neck portion. of said base. Advantageously, this frustoconical shape of the neck portion portions of the first and second base portions allows a guide of the first base portion during its displacement relative to the second fixed base portion.
    [0014] In addition, this frustoconical shape of the neck portion portions of the base portions advantageously allows a portion of the forces applied to the first movable base portion and related to the internal pressure of the inner envelope to be transferred to the portion conical female neck portion of the second base portion.
    [0015] There is thus a significant decrease in the stresses on the annular portion of the base. More generally, there is a region of the neck portion of the base for which the outer diameter of the neck portion portion of the first base portion decreases in the direction of evacuation of gases, it is that is to say towards the outlet of the reservoir, while the inside diameter of the neck portion portion of the second base portion decreases in going in the same direction of evacuation of gases. As a purely illustrative example, the neck portion portion of the first base portion has a flared shape going from the outlet of the reservoir to the inner casing, this shape being frustoconical, conical, rounded, .. Preferably, the reservoir comprises at least one abutment means for preventing disengagement of the first movable base portion with respect to the second base portion.
    [0016] Advantageously, the reservoir comprises means for locking in rotation of said base portions between them. This locking means can be made to limit the rotation of a base portion relative to the other base portion. at least a portion of the lower surface of said annular portion has one or more grooves opening at one of their ends into said at least one vent and at their other end at the periphery of said annular portion so as to form collection paths; and evacuation of entrapped gases, said inner casing is metallic or of plastic material, said annular portion has a tapered or substantially triangular profile towards its periphery, said tank is equipped with a seal or a plug to prevent pollution of the space separating the outer surface of said inner shell and the inner surface of said storage tank reinforcement shell.
    [0017] Advantageously, such a plug acting as a dust cover, prevents any pollution of this space when the storage tank is not in use.
    [0018] Similarly, a seal placed at the end of the neck and in contact with a connector provides this function when the tank is in use. - the tank is filled with a gas or a mixture of gases. For purely illustrative purposes, this gas may be air, nitrogen, helium, hydrogen or the like.
    [0019] The present invention also relates to a transport means equipped with at least one reservoir as described above. This means of transport may be an aircraft or a vehicle such as a truck or an automobile. The present invention further relates to the use of the tank as previously described as a source of gas or fuel supply. Such a tank can be used as a stationary power source or onboard a transport means. For purely illustrative purposes, such a tank may be used as a power source for a fuel cell or in a filling or distribution plant such as a service station. The present invention further relates to the use of the tank as previously described as energy storage. BRIEF DESCRIPTION OF THE DRAWINGS Other particular advantages, aims and features of the present invention will emerge from the description which follows, for the purpose of explanation and in no way limiting, with reference to the appended drawings, in which: FIG. 1 shows schematically A tank for storing pressurized gas according to a first embodiment of the present invention; FIG. 2 is a longitudinal sectional view of the reservoir of FIG. 1, - Figure 3 is an enlarged and partial view of the end of said reservoir of FIG. FIG. 4 is a partial sectional view of a reservoir for storing pressurized gas according to a second embodiment of the present invention, the reservoir being full, FIG. 5 shows the reservoir of the Fig. 4 after this has been used, the inner casing being emptied of its gas, - Figure 6 is a partial sectional view of a tank for storing gas under pressure according to a third embodiment of the invention. In the present invention, the reservoir being full, FIG. 7 shows the reservoir of FIG. 6 after it has been used, the inner casing being emptied of its gas. FIG. 8 is a partial sectional view of a reservoir for the storage of pressurized gas according to a fourth embodiment of the present invention, the reservoir being full, FIG. 9 shows the reservoir of FIG. 8 after it has been used, the inner casing being emptied of its gas. DETAILED DESCRIPTION OF EMBODIMENTS OF THE INVENTION Firstly, it is noted that the figures are not to scale. Figures 1 to 3 describe a tank for storing pressurized gas according to a first embodiment of the present invention. This reservoir 10 comprises a substantially cylindrical central portion 11 closed at its two ends by domes 12. One of these domes 12 is provided with a base 13 to ensure the internal / external connection of the reservoir, and consequently the filling in gas and dump. For this purpose, this base 13 is particularly intended to receive a fitting such as a valve, a valve or a pipe. The reservoir 10 comprises a sealed inner envelope 14, also called a liner, defining a storage chamber in which a gas under pressure is intended to be stored. This liner 14 has at one of its ends a circular opening 15 delimited by a neck 16 of the liner. The liner 30 is here constituted of a polymer such as polyamide, high density polyethylene (HDPE), polyurethane (PU), etc. The liner 14 is also surrounded by a mechanical reinforcing envelope 17 intended for mechanically reinforce the tank to withstand the pressure of the gas stored in the storage chamber. As shown in FIG. 2, the mechanical reinforcing envelope 17 covers the lower part of the base 13.
    [0020] This reinforcing envelope 17 is, for example, made of a composite material obtained by filament winding of unidirectional fibers impregnated with resin. Each layer is oriented relative to the longitudinal axis of the reservoir of a winding angle. Long fibers are preferably used which provide better resistance to successive and repetitive deformations, for example glass or carbon fibers bonded together by a resin such as an epoxy resin. The base 13 comprises a hollow cylindrical neck portion 18 defining an inner channel 19 and an annular portion 20 extending from the lower part of the neck portion 18. This annular portion 20 comprises a lower surface 21, this surface lower part constituting the lower surface of the base 13. This base 13 is also constituted by an insert 22, at least a portion of whose surface is covered with a plastic interface 23. This insert 22 is made of a metallic material or alloy. For purely illustrative purposes, it is made of steel. The plastic interface 23 comprises, in turn, a first portion 24 defining the entirety of the lower surface 21 of the annular portion 20 of the base 13 and a second portion 25 covering the upper surface of the insert and s extending to partially cover the outer surface of the neck portion 18 of the base. The bottom surface 21 of this base 13 is placed facing a contact surface 26 of the liner 14.
    [0021] Furthermore, the neck portion 18 of the base comprises in its lower part from which radially extends the annular portion 20, a cylindrical annular groove 27 opening into the inner channel 19 and the first portion 24 of the plastic interface 23 comprises a hollow tubular portion 28 received in this annular groove ensuring a profile continuity of the inner channel 19. This hollow tubular portion 28 has a groove for receiving the neck 16 of the liner and assemble here by gluing this 16 and the base 13. The base 13 also comprises two identical vents 29 which are here tubular conduits, placed obliquely and symmetrically with respect to the channel 19 inside the base 13.
    [0022] Each vent opens at one of its ends, in the upper part of this inner channel and at its other end, on the lower surface of the base, thus crossing simultaneously the insert 22 and the first one. part 24 of the plastic interface 23. These vents 29 are in fluid communication with the space, or gap, separating the outer surface of the liner 14 from the inner surface of the reinforcing envelope 17 to ensure the evacuation of the gases having crossed the liner wall 14.
    [0023] It is advantageously observed that this tank, which is simple in its design and in its operating mode, ensures efficient evacuation of the gases that have passed through the liner wall 14. FIGS. 4 and 5 show a gas storage tank under pressure according to a second embodiment of the present invention. For the sake of brevity, the elements of Figures 4 and 5 with the same references as the elements of Figures 1 to 3 represent the same objects, which will not be described again below. The reservoir of Figures 4 and 5 differs from that of Figures 1 to 3 in that the base 30 comprises a first 31 base member only integral with the liner 14 and a second 32 base member, separate from the first 31 element base, secured to the only envelope 17 mechanical reinforcement. These two base elements 31, 32 thus defining the base 30 of the reservoir are not connected to each other so that the second base element 32 being fixed because linked to the mechanical reinforcement envelope 17, the first element 31 The base moves with respect to this second base member when the storage chamber is emptied of its contents. For this purpose, the connection (not shown) intended to be partially received in the channel 19 inside the base 30 is fixed or integrated only to the neck portion 33 of the first base member 31 so as to allow this movement. . Nevertheless, these first and second base members 31, 32 are configured so that when the storage chamber of the tank is emptied of its contents, the neck portion 33 of the first base member 31 remains engaged in the portion of the base. collar 34 of the second 32 base member.
    [0024] Advantageously, the first base member 31 has a conical male neck portion 33 while the second base member 32 has a conical female neck portion 34.
    [0025] Thus, these base members 31, 32 cooperate with each other to form the neck portion of the base 30. In addition, this geometry of the neck portions provides guiding of the neck portion 33 of the first 31 base member. in the neck portion 34 of the second base member 32 during filling of the storage chamber.
    [0026] The vent 35 is here formed by the space separating the first and second base members 31, 32. This vent 35 is of evolutionary geometry when the storage chamber is emptied of its contents or filled and pressurized. Figures 6 and 7 show a pressurized gas storage tank according to a third embodiment of the present invention. For the sake of brevity, the elements of Figures 6 and 7 with the same references as the elements of Figures 4 and 5 represent the same objects, which will not be described again below. The reservoir of FIGS. 6 and 7 differs from that of FIGS. 4 and 5 in that: firstly, the first base element only integral with the liner comprises in the upper part of its neck portion; and on its outer surface, cutouts 37 at right angles, or flats, defining laterally on the outer surface of said neck portion 36, two planar faces, and - secondly, the second 32 base member. , distinct from the first 31 base member and secured to the sole envelope 17 of mechanical reinforcement, comprises in the upper part of its frustoconical neck portion 38, and on the inner surface of this neck portion 38, cutouts 39 to right angle, or flats whose shape cooperates with that of the cutouts 37 of the neck portion 36 of the first base member 31 for locking in rotation the base members 31, 32 between them. Figures 8 and 9 show a pressurized gas storage tank according to a fourth embodiment of the present invention. For the sake of brevity, the elements of Figures 8 and 9 bearing the same references as the elements of Figures 4 and 5 represent the same objects, which will not be described again below. The reservoir of FIGS. 8 and 9 differs from that of FIGS. 4 and 5 in that: on the one hand, the first base element only integral with the liner comprises in the upper part of its neck portion 40 and on its outer surface, an elastic ring 41 surrounding said neck portion 40, and 10 - secondly, the second base member 32, distinct from the first base member 31 and secured to the single envelope 17 mechanical reinforcement, comprises in the upper part of its frustoconical neck portion 42, and on the inner surface of this neck portion 42, a groove 43 receiving said elastic ring 41 and whose thickness of the groove 43 determines the race moving the first base member 31 relative to the second base member. It is thus possible to lock in translation said first 31 base member while guiding its movement. Alternatively, it could still be possible to block in translation the first base member 31 through the connection intended to be fixed in the channel 19 of this base member 31. This connection which would present, for this purpose, a T-shaped section, would have an outer diameter of the head of this cap greater than the diameter of the channel 19 so that this head coming to bear on the upper flange of the second 32 base member during the emptying of the tank, it would prevent the first base member 31 to move further.
    权利要求:
    Claims (18)
    [0001]
    REVENDICATIONS1. A tank for storing liquid or gaseous media under pressure, comprising an inner envelope (14) defining a storage chamber, said inner envelope (14) comprising an opening (15), a base (13) placed at said opening ( 15) to provide the inner / outer connection of said tank and a mechanical reinforcing shell (17) surrounding at least said inner shell (14), said base (13) having a hollow cylindrical neck portion (18) defining a channel (19). ) and an annular portion (20) comprising a lower surface constituting the lower surface of said base (13), said lower surface being placed opposite a contact surface (26) of said casing (14) interior, characterized in that said base (13) comprises at least one vent (29,35) separate from said channel, said at least one vent (29,35) opening at a first of its ends to the surface bottom of said annular portion (20) and at its other end in said channel (19) inside so as to ensure the evacuation of gas having passed through the wall of the inner casing (14).
    [0002]
    2. Tank according to claim 1, characterized in that said channel (19) inside having an upper channel portion called portion off storage pressure, and a lower channel portion, called portion under pressure storage, said portions being delimited or intended to be delimited by a seal, said at least one vent (29,35) opens at its first end into said upper channel portion.
    [0003]
    3. Tank according to claim 1 or 2, characterized in that said at least one vent (29,35) opens at its second end on a portion of said lower surface distinct from the periphery of said annular portion (20).
    [0004]
    4. Tank according to any one of claims 1 to 3, characterized in that said vent (29,35) or at least some of said vents (29,35) are each formed by an opening (15) made in the thickness of said base (13).
    [0005]
    5. Tank according to claim 4, characterized in that said base (13) comprises at least two conduits regularly distributed around said channel and joining the lower surface of said annular portion (20).
    [0006]
    6. Tank according to claim 4 or 5, characterized in that said base (13) comprising a metal or alloy insert (22) at least a part of its surface is covered with a plastic interface (23), a first part (24) of said plastic interface forms the lower or partially lower surface of said annular portion (20) and a second portion (25) of said interface at least partially covers the upper surface of said annular portion (20).
    [0007]
    7. Tank according to claim 6, characterized in that said inner casing (14) comprising a neck, the neck portion of the base (13) has in its lower part from which extends radially said annular portion. (20), a cylindrical annular groove and in that the plastic interface comprises a hollow tubular portion received at least in said annular groove, said hollow tubular portion comprising an assembly zone with said collar of the inner casing (14) .
    [0008]
    8. Tank according to any one of claims 1 to 3, characterized in that said base (13) comprises a first base portion (13) integral with said inner casing (14) and a second base portion (13). ) secured to said envelope (17) mechanical reinforcement, said first and second base portions (13) being distinct and not bonded together, said vent (29,35) being formed by the space separating said base portions (13).
    [0009]
    9. Tank according to claim 8, characterized in that each of said base portions (13) comprising a portion of said neck portion and a portion of said annular portion (20), and said second base portion (13). being fixed, said first base portion (13) is movable with respect to said second base portion (13) between a first so-called full tank position where said inner casing (14) is filled and under pressure, said first portion of base (13) is at least partially in contact with said second base portion (13), the free end of the neck portion portion of the first base portion (13) being set back from the free end of the portion of the neck portion of the second base portion (13), and a second position called empty reservoir, wherein said inner casing (14) being empty of its contents, the free end of the portion neck portion of said first portion of the base (13) is surrounded at least in part by the neck portion portion of the second base portion (13) so that said neck portion portions of said base portions (13) remain engaged at least partially one in the other.
    [0010]
    10. Tank according to claim 9, characterized in that the first base portion (13) comprises a portion of conical male neck portion and the second base portion (13) comprises a portion of conical female neck portion, said conical neck portion portions cooperating with each other to define said neck portion of said base (13).
    [0011]
    Tank according to claim 9 or 10, characterized in that it comprises at least one abutment means for preventing disengagement of the first movable base portion with respect to the second base portion.
    [0012]
    12. Tank according to any one of claims 8 to 11, characterized in that it comprises means for locking in rotation of said base portions (13) between them.
    [0013]
    13. Tank according to any one of claims 1 to 12, characterized in that at least a portion of the lower surface of said annular portion (20) comprises one or more grooves opening at one of their ends in said at least one vent (29,35) and at their other end 20 at the periphery of said annular portion (20) so as to form trapped gas collection and evacuation paths.
    [0014]
    14. Tank according to any one of claims 1 to 13, characterized in that said inner casing (14) is metallic or plastic. 25
    [0015]
    15. Tank according to any one of claims 1 to 14, characterized in that it is filled with a gas or a mixture of gases.
    [0016]
    16. Transport means equipped with at least one tank according to any one of claims 1 to 15.
    [0017]
    17. Use of the reservoir according to any one of claims 1 to 15 as a source of gas or fuel.
    [0018]
    18. Use of the reservoir according to any one of claims 1 to 15 as energy accumulator.
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    同族专利:
    公开号 | 公开日
    EP2894387A2|2015-07-15|
    EP2894387A3|2016-04-06|
    FR3015630B1|2016-01-29|
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    WO2010091062A1|2009-02-06|2010-08-12|Lincoln Composites, Inc.|Pressure vessel longitudinal vents|
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    FR3087245B1|2018-10-11|2021-12-31|Stelia Aerospace Composites|ANTI-COLLAPSE DEVICE FOR PRESSURIZED GAS STORAGE TANK|
    法律状态:
    2015-10-23| CD| Change of name or company name|Owner name: STELIA AEROSPACE COMPOSITES, FR Effective date: 20150923 |
    2015-12-23| PLFP| Fee payment|Year of fee payment: 3 |
    2016-12-29| PLFP| Fee payment|Year of fee payment: 4 |
    2017-12-29| PLFP| Fee payment|Year of fee payment: 5 |
    2019-12-27| PLFP| Fee payment|Year of fee payment: 7 |
    2020-12-31| PLFP| Fee payment|Year of fee payment: 8 |
    2021-12-23| PLFP| Fee payment|Year of fee payment: 9 |
    优先权:
    申请号 | 申请日 | 专利标题
    FR1363271A|FR3015630B1|2013-12-20|2013-12-20|RESERVOIR FOR STORING LIQUID OR GASEOUS MEDIA UNDER PRESSURE|FR1363271A| FR3015630B1|2013-12-20|2013-12-20|RESERVOIR FOR STORING LIQUID OR GASEOUS MEDIA UNDER PRESSURE|
    EP14198906.1A| EP2894387A3|2013-12-20|2014-12-18|Tank for storing liquid or gaseous media under pressure|
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