• 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:
    A fluid nozzle (10) includes a housing (20), a poppet (30) configured to move within the housing (20), and a contact sensor (40) disposed in the housing (20) and configured to detect a position of the mushroom (30). A contact sensor (40) may include an actuating rod (42) configured to move in response to contact with the poppet (30), an actuating rod spring (82) configured to apply a biasing force to the actuating rod (42), a push rod (48), a rolling element (46) disposed between the actuating rod (42) and the push rod (48), and a switch (50) actuated by the movement of the push rod (48). In a connected position of the mushroom (30), the actuating rod (42) can push the rolling element, the rolling element (46) can push the push rod (48), and the push rod ( 48) can activate the switch (50) to indicate a connection.
    公开号:FR3070743A1
    申请号:FR1857719
    申请日:2018-08-28
    公开日:2019-03-08
    发明作者:James W. Reinholdt
    申请人:Eaton Intelligent Power Ltd；
    IPC主号:
    专利说明:

    FLUID NOZZLE COMPRISING A MUSHROOM
    FLOW CONTROL AND SENSOR
    POSITION AND / OR CONNECTION SENSOR
    TECHNICAL FIELD The present invention relates generally to fluid nozzles, in particular fluid nozzles which can be used in connection with the refueling in flight of aircraft.
    BACKGROUND This context description is presented below only for the purpose of providing a context. Consequently, any aspect of this description of context, insofar as it cannot be qualified as prior art, is neither expressly nor implicitly admitted as prior art with respect to the present invention.
    With some nozzle designs, it can be difficult to determine if a nozzle and a receptacle are sufficiently connected. If it is incorrectly determined that a nozzle and a receptacle are connected, the nozzle, receptacle and / or other components may be damaged.
    There is a desire to find solutions / options which mitigate or eliminate one or more challenges or faults of the fluid nozzles. The foregoing discussion is intended only to illustrate examples in this area and should not be viewed as a disavowal of the scope.
    SUMMARY In embodiments, a fluid nozzle may include a housing, a mushroom configured to move within the housing and / or a contact sensor disposed in the housing and configured to detect a position of the mushroom . A contact sensor may include an actuating rod configured to move in response to contact with the fungus, an actuating rod spring configured to apply a biasing force to the actuating rod, a push rod, a rolling element arranged between the actuating rod and the push rod, and / or a switch actuated by the movement of the push rod. In a connected position of the mushroom, the actuating rod can push the rolling element (for example, radially outward), the rolling element can push the pushing rod (for example, radially outward ), and the push rod can activate the switch to indicate sufficient contact. A nozzle may include a connection sensor which may include a connection sensor switch configured to detect movement of the one or more locks on the nozzle. The movement of the latches can be caused by rollers in a receptacle. In embodiments, a fluid nozzle may include a housing, a mushroom configured to move inside the housing to control the flow of fluid in the housing, one or more latches that can be disposed at the outside the housing, and a connection sensor. The connection sensor may include a connection switch which can be configured to detect movement of the one or more latches and / or provide a sufficient connection indication. The one or more latches can be configured to enter into translational movement relative to the housing when actuated by one or more rollers of a receptacle.
    In embodiments, a method of connecting a nozzle with a receptacle may include inserting one end of the nozzle into the receptacle, moving a mushroom from the nozzle for contacting with a receptacle base valve, moving the mushroom to contact an actuating rod, moving the actuating rod so that a rolling element moves in a cavity of a housing of the nozzle and the rolling element causes a push rod to move, the activation of a contact switch by the movement of the push rod, and the provision of a sufficient contact indication when activating the contact switch.
    The foregoing aspects, properties, details, functionalities and / or advantages and others of the embodiments of the present invention will become apparent on reading the following description and on viewing the drawings in the appendix.
    BRIEF DESCRIPTION OF THE DRAWINGS [0009] Figure 1 is a cross-sectional view generally illustrating an embodiment of a fluid nozzle including a contact sensor according to the teachings of the present invention.
    Figure IA is an enlarged cross-sectional view generally illustrating part of an embodiment of a fluid nozzle including a contact sensor according to the teachings of the present invention.
    Figures 2 and 3 are cross-sectional views generally illustrating embodiments of fluid nozzles including a contact sensor according to the teachings of the present invention.
    Figures 4 and 5 are cross-sectional views generally illustrating embodiments of fluid nozzles including a connection sensor according to the teachings of the present invention.
    Figure 6 is a flowchart generally showing an embodiment of a method of connecting a nozzle and a receptacle according to the teachings of the present invention.
    DETAILED DESCRIPTION Reference will now be made in detail to the embodiments of the present invention, examples of which are described here and illustrated in the accompanying drawings. While the present invention will be described in conjunction with embodiments and / or examples, it will be understood that they are not intended to limit the present invention to these embodiments and / or these examples. On the contrary, the present invention is intended to cover variants, modifications and equivalents.
    In embodiments, as illustrated generally in Figure 1, a nozzle 10 may include an axis 10A, a housing 20, a mushroom 30 and / or a contact sensor 40. A first end 12 nozzle 10 may be configured to be inserted into a receptacle 60, such as a fuel arrow receptacle of a receiving aircraft. A second end 14 of the nozzle 10 can be configured for connection with a fluid conduit 70, such as a fuel arrow of a tanker aircraft. A mushroom 30 can move between a first closed position, as generally illustrated in FIG. 1, a second partially open position, as generally illustrated in FIG. 2, and / or a third open position, as generally illustrated in FIG. 3. The movement of the mushroom 30 can control the flow of fluid through the nozzle 10 and / or through the housing 20. In a first position of the mushroom, the flow of fluid between the first end 12 and the second end 14 can be limited and / or prevented. In a second position of the mushroom, the flow of fluid between the first end 12 and the second end 14 may be partially limited. In a third position of the mushroom, the flow of fluid between the first end 12 and the second end 14 may not be materially limited by the mushroom 30.
    With embodiments, a nozzle 10 can include a mushroom spring 32 which can urge the mushroom 30 to a first position (for example, can urge the nozzle 10 closed). If the first end 12 of the nozzle 10 is inserted into a receptacle 60, a part of the receptacle 60, such as a base valve 62, can come into contact with the mushroom 30. If a connection force is large enough, the connection force can overcome a biasing force supplied by the mushroom spring 32 and can cause the mushroom 30 to move (for example, to enter a translation movement axially) towards the second end 14. For example and without limitation, the insertion of the nozzle 10 into the receptacle 60 can cause the fungus 30 to move from a first position to or towards a second position and / or a third position. A nozzle assembly 72 may include a nozzle 10 and a receptacle 60.
    In embodiments, a contact sensor 40 can be configured to determine if a mushroom 30 is in a third position and / or has opened beyond a second position (for example, if a contact sufficient has been established between the nozzle 10 and the receptacle 60). In embodiments, as illustrated generally in Figure IA, a contact sensor 40 may include an actuating rod 42, an actuating rod spring 44, a rolling element 46 (e.g. a ball, a cylindrical roller, etc.), a push rod 48 and / or a contact switch 50. An actuating rod 42 can be connected to the housing 20 so that the mushroom 30 can come into contact with the rod d actuation 42 in the second position of the mushroom, in the third position of the mushroom, and / or in positions between the second position of the mushroom and the third position of the mushroom. The movement of the mushroom 30 can cause a movement (for example, an axial movement / a translation) of the actuating rod 42, such as towards the second end 14 of the nozzle 10. An actuating rod 42 can be arranged substantially parallel to an axis 10A of the nozzle 10. In addition or as a variant, an actuating rod 42 can be disposed at least partially in an actuating rod recess 80 of the housing 20 which can be arranged substantially parallel to an axis 10A of the nozzle 10 (for example, the actuating rod recess 80 can extend in an axial direction). The actuating rod recess 80 may include a stepped configuration which may limit the movement of the actuating rod 42. An actuating rod spring 82 may urge the mushroom 30 toward the first end 12 of the nozzle 10 The actuating rod spring 82 can be placed in the actuating rod recess 80 and can urge the actuating rod 42 towards the mushroom 30 and / or the first end 12 of the nozzle 10.
    With embodiments, an actuating rod 42 can include a groove 84 (for example, a circumferential groove) which can be configured to at least partially receive a rolling element 46. If the mushroom 30 is in a first position or between the first position and a second position (for example, not in contact with the actuating rod 42), the groove 84 can be aligned with a cavity 90 of the housing 20 (see for example FIG. IA). The cavity 90 can be arranged substantially perpendicular to the actuating rod 42 and / or to an axis 10A of the nozzle 10. A rolling element 46 (or a plurality of rolling elements 46) can be arranged at least partially in the groove 84 and / or in the cavity 90. When the actuating rod 42 enters in translational movement (for example, in an axial direction), the actuating rod 42 can push the rolling element 46 into the cavity 90 (for example, in a radial direction). The groove 84 of the actuating rod 42 can include one or more tapered edges 86 which can facilitate the pushing of the rolling element 46 into the cavity 90. A push rod 48 can be disposed at least partially in the cavity 90 The push rod 48 can be arranged substantially perpendicular to the actuating rod 42. If the rolling element 46 moves in the cavity 90, the rolling element 46 can cause the thrust of the rod 48 to go into translational motion (for example, in a radially outward direction) and / or activate the contact switch 50. The contact switch 50 can be normally open or normally closed and can be configured to provide a indication that it has been activated (for example, that the mushroom 30 and the base valve 62 are in sufficient contact and / or that the nozzle 10 has been inserted at a sufficient distance into the container 60). The contact switch 50 may, for example and without limitation, include a hermetically sealed switch which can provide an electrical signal when activated and / or deactivated. The contact switch 50 can be connected to an electronic control unit (ECU) 92.
    In embodiments, a mushroom 30 can move substantially axially between a first closed position, a second partially open position and / or a third open position. A stroke length DI of the mushroom 30 between the first position and the second position can, for example and without limitation, be from approximately 15.2 mm (0.6 inch) to approximately 20.3 mm (0.8 inch), such about 15.8 mm (0.62 inch) or about 19.1 mm (0.75 inch). The actuating rod 42 may not move the rolling element 46 while the mushroom 30 is disposed in a first position and / or between a first position and a second position. The actuating rod 42 can cause the rolling element 46 to move in the cavity 90 and activate the contact switch 50 by the push rod 48 if the mushroom 30 moves a second distance / stroke length D2 d ' a first closed position, for example from a second position to a third position. A distance D2 can, for example and without limitation, be from about 20.3 mm (0.8 inch) to about 33 mm (1.3 inch), such as from about 21.3 mm (0.84 inch) to about 31.8 mm (1.25 inch).
    In embodiments, a contact switch 50 can be hermetically sealed and / or can include a microswitch. A contact switch 50 can be placed in a cavity 94 outside the housing 20, for example on or around an outer end of the cavity 90. The cavity 94 can be provided between the housing 20 and a cover 22. One or more sealing elements can be arranged at least partially in the cavity 90 of the housing 20. For example and without limitation, a first sealing element 96 can include a bellows seal which can be arranged partially and / or entirely around (for example, circumferentially) of the push rod 48. In addition or as a variant, the first sealing element 96 may extend substantially over the entire length of the push rod 48 (for example, other than a part which can extend out of the cavity 90 to engage the contact switch 50). The first sealing element 96 can urge the push rod 48 radially inward. Additionally or alternatively, a second sealing member 98 may include an O-ring which may be disposed partially and / or entirely around (for example, circumferentially) the push rod 48. A first sealing member 96 and / or a second sealing element 98 can provide a fluid seal in the cavity 90 between an interior and an exterior of the housing 20.
    With embodiments, as illustrated generally in Figures 4 and 5, a nozzle 10 may include a connection sensor 100. A connection sensor 100 may include a connection switch 102, such as a hermetically sealed microswitch, which can be disposed in a cavity 94 outside a housing 20 of the nozzle 10. A nozzle 10 may include a latch 110 which may include an opening 112, such as a slotted hole . One or more locking screws 114 can be connected to the housing 20 and / or to the opening 112, and can limit the movement of the lock 110 relative to the housing 20.
    The locking screws 114 can be arranged substantially perpendicular to an axis 10A of the nozzle 10. One or more return elements 116 (for example, a leaf spring) can apply a biasing force to a locking shaft 118 and / or to the latch 110, which can urge the latch 110 towards and / or against the connection switch 102. In embodiments, a receptacle 60 can include one or more rollers 120 which can rotate between a disengaged position , as shown generally in Figure 4, and an engaged position, as shown generally in Figure 5. When the rollers 120 move from a disengaged position to an engaged position, the rollers 120 can move the lock 110 away from the connection switch 102 (for example, cause the lock 110 to move / move in translation movement axially towards the first end 12), which can t activate the connection switch 102. For example and without limitation, the rollers 120 can cause an axial gap G between the latch 110 and the housing 20 to form and / or widen. A connection switch 102 may be configured to provide an indication (for example, a "ready" signal) that the rollers 120 are engaged, which may indicate that the nozzle 10 is sufficiently connected to the receptacle 60. The connection switch 102 may, for example, provide an indication to an ECU 92. With embodiments, the supply of fuel from a tanker aircraft through a nozzle 10 to a receptacle 60 can begin after the connection switch 102 provides an indication of a sufficient connection.
    With embodiments, a nozzle 10 can include a contact sensor 40 and / or a connection sensor 100. For example and without limitation, parts of the contact sensor 40 can be spaced apart (for example, circumferentially) from parts of the connection sensor 100, which may include a contact switch or switches 50 of a contact sensor 40 spaced apart (for example, circumferentially) from a connection switch or switches 102 of a sensor connection 100. In embodiments, a voice coil 122 can be connected to a nozzle 10 (see, for example, Figures 1-3).
    In embodiments, as illustrated generally in Figure 6, a method 130 of connecting a nozzle 10 to a receptacle 60 may include inserting a nozzle 10 at least partially into a receptacle 60 (step 132). The insertion of the nozzle 10 can continue until a mushroom 30 of the nozzle 10 comes into contact with a part of the receptacle 60, such as a base valve 62 of the receptacle 60 (step 134). The insertion of the nozzle 10 can continue until the fungus 30 comes into contact with an actuating rod 42 of the nozzle 10, which can correspond to an insertion depth / stroke length DI of approximately 15 0.2 mm (0.6 inch) to about 20.3 mm (0.8 inch) (step 136). The insertion of the nozzle 10 can continue, which can cause the actuating rod 42 to start in translational movement towards a rear end 14 of the nozzle 10 and / or can cause a rolling element 46 to move / enter in translational movement radially outward (step 138). When the rolling element 46 moves / enters in translational movement, a push rod 48 can be pushed radially outwards, which can activate a contact switch 50 and / or provide an indication that the mushroom 30 and the plinth valve 62 is in sufficient contact (for example, a "contact" signal) (step 140). When the nozzle 10 and the receptacle 60 are connected, the rollers 120 of the receptacle 60 can rotate in contact with a latch 110 of the nozzle 10 and / or can cause the translation of the latch 110, such as in an axial direction (step 142) . A connection sensor 100 can detect the movement of the latch 110 and can indicate a sufficient connection between the nozzle 10 and the receptacle 60 (for example, providing a “ready” signal) when the rollers 120 cause the latch 110 to translate so that the latch 110 activates a connection switch 102 of the connection sensor 100 (step 144). The contact sensor 40 and / or the connection sensor 100 can be connected to an ECU 92 and the ECU 92 can, for example and without limitation, be configured to determine that the fuel supply can start if one or both the contact sensor 40 and the connection sensor 100 are activated (for example, they can receive indications of sufficient contact and sufficient connection, such as the "contact" and "ready" signals). The ECU 92 may be configured to control fueling, which may include the start of fueling if one or both of the contact sensor 40 or connection sensor 100 are activated. The refueling control may include controlling a fuel pump which can be connected to the nozzle - for example, by controlling one or more operational parameters associated with the fuel pump.
    In embodiments, an ECU 92 can include an electronic control device and / or include an electronic processor, such as a programmable microprocessor and / or a microcontroller. In embodiments, the ECU 92 may include, for example, an application specific integrated circuit (ASIC). The ECU 92 may include a central processing unit (CPU), memory (for example, non-transient computer-readable storage medium) and / or an input / output (I / O) interface.
    ECU 92 can be configured to perform various functions, including those described in more detail here, with appropriate programming instructions and / or code embedded in software, hardware, and / or other media. In embodiments, the ECU 92 may include a plurality of controllers. In embodiments, the ECU 92 can be connected to a display, such as a touch screen display.
    Various embodiments are described here for various devices, systems and / or methods. Numerous specific details are presented to provide a thorough understanding of the overall structure, function, manufacture and use of the embodiments as described in the specification and illustrated in the accompanying drawings. Those skilled in the art will understand, however, that the embodiments can be practiced without such specific details. In other cases, well known operations, components and elements have not been described in detail so as not to obscure the embodiments described in the specification. Those skilled in the art will understand that the embodiments described and illustrated here are nonlimiting examples, and it can therefore be appreciated that the specific structural and functional details described here can be representative and do not necessarily limit the scope of the embodiments .
    Throughout the specification, the reference to "various embodiments", "with embodiments", "in embodiments" or "an embodiment", etc., means that a property, a particular characteristic or structure described in relation to the embodiment is included in at least one embodiment. Thus, the presence of the expressions “in various embodiments”, “with embodiments”, “in embodiments” or “an embodiment”, etc., at places throughout the specification, do not necessarily refer to the same embodiment. In addition, the particular properties, structures or characteristics can be combined in any suitable way in one or more embodiments. Thus, the particular properties, structures or characteristics illustrated or described in relation to an embodiment / example can be combined, in whole or in part, with the properties, structures, functions and / or characteristics of one or more other ( s) embodiment (s) / example (s) without limitation since such a combination is neither illogical nor non-functional. In addition, many modifications can be made to adapt a particular situation or material to the teachings of the present invention without departing from the scope thereof.
    It should be understood that references to a single element are not necessarily as limited and may include one or more of these elements. All directional references (e.g. plus, minus, up, down, up, down, left, right, left, right, up, down, above, below, vertical, horizontal, clockwise and counterclockwise) are used only for identification purposes to assist the reader in understanding the present invention, and do not create limitations, particularly with regard to position, orientation or the use of embodiments.
    The junction references (for example, fixed, coupled, connected, etc.) must be interpreted broadly and can include intermediate members between a connection of elements and the relative movement between the elements. As such, junction references do not necessarily imply that two elements are directly connected / coupled and in a fixed relationship to each other. The use of "for example" in the specification is to be interpreted broadly and is used to provide non-limiting examples of embodiments of the invention, and the invention is not limited to such examples. The uses of "and" and "or" should be interpreted broadly (for example, to be treated as "and / or"). For example, and without limitation, the uses of "and" do not necessarily require all of the elements or properties listed, and the uses of "or" are intended to be inclusive unless such construction is illogical.
    [0030] While processes, systems and methods can be described here in relation to one or more step (s) in a particular sequence, it should be understood that these methods can be practiced with the steps in a different order, with certain steps carried out simultaneously, with additional steps and / or with certain described steps omitted.
    It is expected that any object contained in the above description or shown in the accompanying drawings should be interpreted only for illustrative and not restrictive. Modifications of detail or structure can be made without departing from the present invention.
    权利要求:
    Claims (20)
    [1" id="c-fr-0001]
    1. Fluid nozzle (10) comprising:
    a housing (20);
    a mushroom (30) configured to move inside the housing (20) to control the flow of fluid in the housing (20); and a contact sensor (40) connected to the housing (20) and configured to detect a position of the mushroom (30).
    [2" id="c-fr-0002]
    2. Fluid nozzle (10) according to claim 1, in which the contact sensor (40) includes:
    an actuating rod (42) configured to move in response to contact with the fungus (30);
    an actuating rod spring (82) configured to apply a biasing force to the actuating rod (42);
    a push rod (48);
    a rolling element (46) disposed between the actuating rod (42) and the push rod (48); and a contact switch (50) activated by movement of the push rod (48).
    [3" id="c-fr-0003]
    3. Fluid nozzle (10) according to claim 2, wherein, in a closed position of the mushroom (30), the rolling element (46) is disposed in a groove (84) of the actuating rod (42 ); and the actuating rod (42) is configured so that when the mushroom (30) moves to an open position, the actuating rod (42) pushes the rolling element (46) out of the groove ( 84), the rolling element (46) pushes the push rod (48) and the push rod (48) activates the contact switch (50) to indicate the contact.
    [4" id="c-fr-0004]
    4. Fluid nozzle (10) according to claim 2, wherein the actuating rod (42) and the push rod (48) are arranged substantially perpendicular to each other.
    [5" id="c-fr-0005]
    5. Fluid nozzle (10) according to claim 2, wherein the actuating rod (42) is configured to enter in translational movement in an axial direction and the push rod (48) is configured to enter in movement of translation in a radial direction.
    [6" id="c-fr-0006]
    6. A fluid nozzle (10) according to claim 2, including one or more latches (110) and a connection sensor (100), wherein the connection sensor (100) includes a connection switch (102) configured to detect movement of the one or more latches (110), and to provide an indication of sufficient connection.
    [7" id="c-fr-0007]
    7. Fluid nozzle (10) according to claim 6, wherein the contact sensor (40) and the connection sensor (100) are circumferentially spaced.
    [8" id="c-fr-0008]
    8. A fluid nozzle (10) according to claim 2, wherein the contact switch (50) is hermetically sealed and is configured to provide an electrical signal when actuated.
    [9" id="c-fr-0009]
    9. Fluid nozzle (10) according to claim 2, in which the push rod (48) is disposed in a cavity (90) of the housing (20) and the contact switch (50) is disposed in a cavity ( 94) outside the housing (20).
    [10" id="c-fr-0010]
    10. Fluid nozzle (10) according to claim 1, including a bellows seal (96) and an O-ring (98) providing a fluid seal between the contact sensor (40) and the housing (20).
    [11" id="c-fr-0011]
    11. A fluid nozzle (10) according to claim 1, wherein the mushroom (30) includes a first position, a second position and a third position; in the first position and the second position, a rolling element (46) of the contact sensor (40) is arranged in a groove (84) of an actuating rod (42) of the contact sensor (40); in the third position, the rolling element (46) is disposed outside the groove.
    [12" id="c-fr-0012]
    12. Fluid nozzle (10) according to claim 11, wherein the first position and the second position are separated by a first distance (Dl); the first position and the third position are separated by a second distance (D2); and the second distance (D2) is greater than the first distance (Dl).
    [13" id="c-fr-0013]
    13. The fluid nozzle (10) of claim 12, wherein the first distance (Dl) is from about 15.2 mm (0.6 inch) to about 20.3 mm (0.8 inch).
    [14" id="c-fr-0014]
    The fluid nozzle (10) according to claim 13, wherein the second distance (D2) is from about 20.3 mm (0.8 inch) to about 33 mm (1.3 inch).
    [15" id="c-fr-0015]
    15. Fluid nozzle (10) comprising: a housing (20);
    a mushroom (30) configured to move inside the housing (20) to control the flow of fluid in the housing (20);
    one or more latches (110); and a connection sensor (100);
    wherein the connection sensor (100) includes a connection switch (102) configured to detect movement of the one or more latches (110), and to provide a connection indication.
    [16" id="c-fr-0016]
    16. Fluid nozzle (10) according to claim 15, in which the one or more latches (110) are configured to enter into translational movement relative to the housing (20) when actuated by one or more rollers (120 ) a receptacle (60).
    [17" id="c-fr-0017]
    17. Method for connecting a nozzle (10) with a receptacle (60), the method comprising:
    inserting one end (12) of the nozzle (10) into the receptacle (60);
    moving a mushroom (30) of the nozzle (10) in contact with a base valve (62) of the receptacle (60);
    moving the mushroom (30) in contact with an actuating rod (42);
    moving the actuating rod (42) so that a rolling element (46) moves in a cavity (90) of a housing (20) of the nozzle (10) and the rolling element (46 ) causes the displacement of a push rod (48);
    activating a contact switch (50) by movement of the push rod (48); and providing a contact indication upon activation of the contact switch (50).
    [18" id="c-fr-0018]
    18. The method of claim 17, comprising rotating a roller (120) of the
    5 receptacle (60) for causing the translation of a lock (110) of the nozzle (10), the activation of a connection sensor (100) by the movement of the lock (110), and the provision of a sufficient connection indication when activating the connection sensor (100).
    [19" id="c-fr-0019]
    19. The method of claim 18, wherein the actuating rod (42) moves
    10 in an axial direction; the push rod (48) moves in a radial direction; and the latch (110) starts translational movement in the axial direction.
    [20" id="c-fr-0020]
    The method of claim 18, wherein the contact indication and the indication of a sufficient connection are supplied to an electronic control unit (ECU)
    15 connected to the contact switch (50) and to the connection sensor (100), and the ECU is configured to control the refueling.
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    同族专利:
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    法律状态:
    2019-07-22| PLFP| Fee payment|Year of fee payment: 2 |
    2020-07-21| PLFP| Fee payment|Year of fee payment: 3 |
    2020-08-28| PLSC| Publication of the preliminary search report|Effective date: 20200828 |
    2021-07-22| PLFP| Fee payment|Year of fee payment: 4 |
    优先权:
    申请号 | 申请日 | 专利标题
    US201762553245P| true| 2017-09-01|2017-09-01|
    US62553245|2017-09-01|
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