Gas compression apparatus, air suspension and vehicle

Abstract

Provided in the present disclosure are a gas compression apparatus, an air suspension and a vehicle. The gas compression apparatus comprises a cylinder and a piston member. The cylinder comprises a cylinder body and an end cover. The end cover is connected to one end of the cylinder body in a first direction and, together with the cylinder body, encloses a first cavity. The other end of the cylinder body in the first direction is provided with an air outlet. A first air intake channel is formed inside the end cover. The piston member is movably connected to the first cavity in the first direction. The piston member and the cylinder enclose a first compression chamber and a second compression chamber. The first compression chamber is in communication with the exterior of the cylinder through the first air intake channel. The second compression chamber is in communication with the air outlet. An air passage is formed inside the piston member. The air passage communicates the first compression chamber and the second compression chamber.

Description

Gas compression equipment, air suspension and vehicles

[0001] Cross-references to related applications

[0002] This application claims priority to Chinese Patent Application No. 202421739467.3, filed on July 22, 2024, entitled “Gas Compression Equipment, Air Suspension and Vehicle”, the entire contents of which are incorporated herein by reference. Technical Field

[0003] This disclosure relates generally to the technical field of vehicles, and more specifically to a gas compression device, an air suspension, and a vehicle. Background Technology

[0004] Gas compression equipment in related technologies includes a cylinder, a piston-connecting rod assembly, and a drive mechanism. The piston-connecting rod assembly includes a piston and a connecting rod. The piston reciprocates within the cylinder to compress gas; however, the piston in related technologies has a relatively complex structure and requires high-precision machining. Summary of the Invention

[0005] This disclosure introduces a series of simplified concepts, which will be further explained in detail in the detailed description section. This disclosure is not intended to limit the key features and essential technical features of the claimed technical solution, nor is it intended to determine the scope of protection of the claimed technical solution.

[0006] To at least partially solve the above problems, a first aspect of this disclosure provides a gas compression device, the gas compression device comprising:

[0007] The cylinder includes a cylinder body and an end cap. The end cap is connected to one end of the cylinder body in a first direction and forms a first cavity with the cylinder body. An air outlet is provided at the other end of the cylinder body in the first direction. A first air inlet is formed inside the end cap.

[0008] A piston assembly is movably connected to the first cavity along the first direction. The piston assembly and the cylinder surround and form a first compression chamber and a second compression chamber. The first compression chamber is connected to the outside of the cylinder via the first air inlet, and the second compression chamber is connected to the air outlet. An air passage is formed inside the piston assembly, and the air passage is connected to the first compression chamber and the second compression chamber.

[0009] According to the gas compression apparatus of the first aspect of this disclosure, a first air inlet is provided on the end cover of the cylinder, and the first air inlet connects the first compression chamber to the outside. Compared with related technologies that provide corresponding air passages in the piston component, this disclosure simplifies the structure of the piston component, thereby reducing the processing difficulty of the piston component.

[0010] Optionally, the gas compression device includes:

[0011] A first one-way valve is disposed in the first air intake passage. The first one-way valve is adapted to open when the air pressure in the first compression chamber is lower than the external atmospheric pressure, so that external gas can enter the first compression chamber.

[0012] Optionally, the first one-way valve is located at one end of the first intake duct near the first compression chamber.

[0013] Optionally, the gas compression device includes:

[0014] A second one-way valve is disposed in the vent passage. The second one-way valve is adapted to open when the gas pressure in the second compression chamber is lower than the gas pressure in the first compression chamber, so that the gas in the first compression chamber can enter the second compression chamber.

[0015] Optionally, the second one-way valve is located at one end of the vent passage near the second compression chamber.

[0016] Optionally, the gas compression device includes:

[0017] A third check valve is disposed at the outlet and is adapted to control the discharge of gas from the second compression chamber when the piston compresses the gas in the second compression chamber.

[0018] Optionally, the gas compression device further includes:

[0019] A connecting rod, one end of which is connected to a piston; and

[0020] A drive assembly connected to the other end of the connecting rod, the drive assembly being adapted to drive the piston to reciprocate along the first direction via the connecting rod.

[0021] Optionally, the drive assembly includes a motor, the interior of the motor housing forms a second cavity, the housing has a first air inlet communicating with the second cavity, and the cylinder includes a second air intake passage communicating with the second cavity and the first air intake passage.

[0022] Optionally, the housing of the motor is connected to the cylinder, and the first air inlet is located at the end of the housing away from the cylinder.

[0023] Optionally, the cylinder and the piston form an intake chamber, the intake chamber being located between the first compression chamber and the second compression chamber. The cylinder body includes a second intake port and a second intake passage, the second intake port being connected to the intake chamber, and the second intake passage being connected to the intake chamber and the first intake passage.

[0024] Optionally, in a plane perpendicular to the first direction, the orthographic projection of the second air intake is located outside the piston.

[0025] Optionally, the second air intake extends along the first direction.

[0026] Optionally, the end cap includes a third air inlet that connects to the first air intake and the outside of the cylinder.

[0027] A second aspect of this disclosure provides an air suspension system comprising the aforementioned gas compression device.

[0028] According to the air suspension of the second aspect of this disclosure, by applying the gas compression device described above, the structure of the air suspension can be simplified, thereby helping to reduce the manufacturing difficulty and production cost of the air suspension.

[0029] A third aspect of this disclosure provides a vehicle including the air suspension described above.

[0030] According to the vehicle of the third aspect of this disclosure, by applying the aforementioned air suspension, the vehicle structure can be simplified, costs reduced, and to some extent, the vehicle can be made lighter. Attached Figure Description

[0031] The following drawings, which illustrate embodiments of this disclosure, are incorporated herein by reference as part of this disclosure and are used to understand this disclosure. The drawings show embodiments of this disclosure and their descriptions, serving to explain the principles of this disclosure. In the drawings,

[0032] Figure 1 is a partial view of a gas compression apparatus according to a preferred embodiment of the present disclosure;

[0033] Figure 2 is a schematic diagram of the gas compression device shown in Figure 1 in a partially cut-out state;

[0034] Figure 3 is a perspective view of the cylinder shown in Figures 1 and 2;

[0035] Figure 4 is a side view of the cylinder block shown in Figure 3;

[0036] Figure 5 is a structural schematic diagram of a gas compression device according to a preferred embodiment of the present disclosure;

[0037] Figure 6 is a schematic diagram of a gas compression device according to another preferred embodiment of the present disclosure;

[0038] Figure 7 is a structural schematic diagram of a gas compression device according to another preferred embodiment of the present disclosure; and

[0039] Figure 8 is a structural schematic diagram of a gas compression device according to another preferred embodiment of the present disclosure;

[0040] Figure 9 is a structural schematic diagram of the gas compression device according to the present disclosure applied to air suspension and vehicles.

[0041] Explanation of reference numerals in the attached drawings: 100: Gas compression device; 110: Cylinder; 110a: First chamber; 110b: First compression chamber; 110c: Inlet chamber; 110d: Second compression chamber; 111: Cylinder body; 111a: Outlet port; 111b: Second inlet port; 111c: Second inlet passage; 111d: First connecting hole; 111e: Second connecting hole; 111f: Third connecting hole; 112: End cover; 112a: First inlet passage; 112b: Third inlet port; 113: Piston; 113a: Vent passage; 114: Connecting rod; 115: First check valve; 116: Second check valve; 117: Third check valve; 118: Connecting shaft; 120: Drive assembly; 121: Motor; 121a: Housing; 121b: First inlet port; 121c: Output shaft; 121d: Second chamber; 122: Crankshaft; D1: First direction D2: Second direction 200: Air suspension 300: Vehicle Specific Implementation

[0042] In the following description, numerous specific details are set forth in order to provide a more thorough understanding of this disclosure. However, it will be apparent to those skilled in the art that embodiments of this disclosure may be practiced without one or more of these details. In other instances, certain technical features well-known in the art have not been described to avoid confusion with embodiments of this disclosure.

[0043] To fully understand the embodiments of this disclosure, a detailed structure will be presented in the following description. It is obvious that the implementation of the embodiments of this disclosure is not limited to the specific details familiar to those skilled in the art.

[0044] It should be understood that the terminology used herein is intended only to describe particular embodiments and is not intended to limit the scope of this disclosure. The singular forms “a,” “an,” and “the” are also intended to include the plural forms unless the context clearly indicates otherwise. When the terms “comprising” and / or “including” are used in this specification, they indicate the presence of the stated features, integrals, steps, operations, elements, and / or components, but do not exclude the presence or addition of one or more other features, integrals, steps, operations, elements, components, and / or combinations thereof.

[0045] Ordinal numbers such as “first” and “second” used in this disclosure are merely identifiers and have no other meaning, such as a specific order. Furthermore, for example, the term “first component” does not imply the existence of a “second component,” and the term “second component” does not imply the existence of a “first component.” It should be noted that the terms “upper,” “lower,” “front,” “rear,” “left,” “right,” “inner,” “outer,” and similar expressions used in this disclosure are for illustrative purposes only and are not intended to be limiting.

[0046] The terms “parallel” / “perpendicular” and similar expressions used in this disclosure include absolute parallel / perpendicular relationships and approximately parallel / perpendicular relationships (e.g., relationships that differ from absolute parallel / perpendicular relationships by a range of -5° to +5°), and have equivalent effects.

[0047] Hereinafter, specific embodiments of the present disclosure will be described in more detail with reference to the accompanying drawings, which illustrate representative embodiments of the present disclosure and are not intended to limit the present disclosure.

[0048] In order to solve the problem of complex piston structure in related technologies, this disclosure provides a gas compression device, an air suspension 200 having the gas compression device, and a vehicle 300 having the air suspension 200.

[0049] The following will describe in detail a gas compression device 100, an air suspension 200 having therein, and a vehicle 300 having the air suspension 200 according to the present disclosure, with reference to the examples shown in Figures 1 to 8.

[0050] First Implementation Method

[0051] Referring to Figures 1 to 5, and in conjunction with Figures 6 to 8, the gas compression device 100 according to the first embodiment of this disclosure may include a cylinder 110 and a piston 113. The cylinder 110 includes a cylinder body 111 and an end cap 112. The end cap 112 is connected to one end of the cylinder body 111 in a first direction D1 and encloses the cylinder body 111 to form a first cavity 110a. In the figures, the first direction D1 may be the height direction in the installed state, and correspondingly, the end cap 112 is installed at the lower part of the cylinder body 111. Here, the installed state refers to the installation state of the gas compression device 100 when installed in the vehicle 300. An outlet 111a is provided at the other end of the cylinder body 111 in the first direction D1. In the figures, the first direction D1 may be the height direction in the installed state, and correspondingly, the outlet 111a is located at the upper part of the cylinder body 111. A first air inlet 112a is formed inside the end cap 112. The piston 113 is movably connected to the first cavity 110a along the first direction. The piston 113 and cylinder 110 enclose a first compression chamber 110b and a second compression chamber 110d. The first compression chamber 110b is connected to the outside of the cylinder 110 via a first intake passage 112a. This can be understood as the first compression chamber 110b being directly or indirectly connected to the outside of the cylinder 110 via the first intake passage 112a. The second compression chamber 110d is connected to an outlet 111a. A vent passage 113a is formed inside the piston 113. The vent passage 113a connects to the first compression chamber 110b and the second compression chamber 110d.

[0052] According to the gas compression device 100 of this disclosure, a first air inlet 112a is provided on the end cap 112 of the cylinder 110, and the first air inlet 112a is used to connect the first compression chamber 110b and the outside of the cylinder 110. Compared with the related technology that provides a corresponding air passage in the piston 113, this disclosure simplifies the structure of the piston 113, thereby reducing the processing difficulty of the piston 113.

[0053] Referring again to Figures 1 to 5, and in conjunction with Figures 6 to 8, for example, the gas compression device 100 may include a first one-way valve 115. The first one-way valve 115 is disposed at one end of the first air inlet 112a near the first compression chamber 110b. The first one-way valve 115 is adapted to open or close when the gas pressure in the first compression chamber 110b is lower than the external atmospheric pressure, so that external gas can enter the first compression chamber 110b. That is, the first one-way valve 115 is open or closed when the first compression chamber 110b draws in gas. Conversely, the first one-way valve 115 is closed or shut off when the first compression chamber 110b is compressed, to prevent the compressed gas in the first compression chamber 110b from being discharged to the outside through the first air inlet 112a, thereby ensuring the airtightness of the first compression chamber 110b during compression.

[0054] In other embodiments, the first one-way valve 115 is located at another position in the first air intake duct 112a. Alternatively, the first one-way valve 115 can be indirectly installed to the first air intake duct 112a via an intermediate component, such as an air passage pipe or other fitting.

[0055] Referring again to Figures 1 to 5, and in conjunction with Figures 6 to 8, for example, the gas compression device 100 may include a second one-way valve 116. The second one-way valve 116 is disposed at one end of the vent 113a near the second compression chamber 110d. The second one-way valve 116 is adapted to open or close when the gas pressure in the second compression chamber 110d is lower than the gas pressure in the first compression chamber 110b, so that gas from the first compression chamber 110b can enter the second compression chamber 110d. That is, the second one-way valve 116 opens or closes when the second compression chamber 110d draws gas from the first compression chamber 110b. Conversely, the second one-way valve 116 closes or shuts off when the second compression chamber 110d is compressed, preventing compressed gas in the second compression chamber 110d from being discharged to the first compression chamber 110b via the vent 113a, thereby ensuring the airtightness of the first compression chamber 110b and the second compression chamber 110d.

[0056] In other embodiments, the second check valve 116 may be located at other positions in the vent 113a. Alternatively, the second check valve 116 may be indirectly installed to the vent 113a via an intermediate component, such as a gas pipe or other fitting.

[0057] Referring again to Figures 1 to 5, and in conjunction with Figures 6 to 8, the gas compression device 100 may further include a third check valve 117. The third check valve 117 is disposed at the outlet 111a. The third check valve 117 is adapted to open or close when the piston 113 compresses the gas in the second compression chamber 110d, thereby controlling the discharge of gas from the second compression chamber 110d. Conversely, the third check valve 117 is shut off or closed when the second compression chamber 110d draws gas from the first compression chamber 110b, thereby preventing gas from entering the second compression chamber 110d at the outlet 111a via the third check valve 117.

[0058] In other embodiments, the third one-way valve 117 may be indirectly installed at the outlet 111a via an intermediate component. This intermediate component may be, for example, a pipe or fitting such as an air duct.

[0059] Referring again to Figures 1 to 5, and in conjunction with Figures 6 to 8, the gas compression device 100 may further include a connecting rod 114 and a drive assembly 120. One end of the connecting rod 114 is connected to a piston 113. The drive assembly 120 is connected to the other end of the connecting rod 114. The drive assembly 120 is adapted to drive the piston 113 to reciprocate in a first direction via the connecting rod 114. By connecting the drive assembly 120 and the piston 113 via the connecting rod 114, the power of the drive assembly 120 can be transmitted to the piston 113, thereby driving the piston 113 to reciprocate in the first direction of the cylinder 111 to compress air.

[0060] Referring to Figures 1 to 5 and in conjunction with Figures 6 to 8, for example, the drive assembly 120 may include a motor 121 and a crankshaft 122. The output shaft 121c of the motor 121 is connected to the connecting rod 114 via the crankshaft 122. A second cavity 121d is formed inside the housing 121a of the motor 121. A first air inlet 121b is located at the end of the housing 121a away from the cylinder 110. The first air inlet 121b communicates with the second cavity 121d. The cylinder block 111 may include a second air intake passage 111c. The second air intake passage 111c communicates with the second cavity 121d and the first air intake passage 112a. Specifically, the motor 121, crankshaft 122, and connecting rod 114 are connected so that the connecting rod 114 can reciprocate in a first direction during the rotation of the crankshaft 122, thereby driving the piston 113 to reciprocate in the first direction via the connecting rod 114. Meanwhile, by providing a first air inlet 121b in the housing 121a, outside air is allowed to enter the second cavity 121d of the housing 121a. With the second cavity 121d communicating with the second air inlet 111c, outside air sequentially enters the first compression chamber 110b via the second cavity 121d, the second air inlet 111c, and the first air inlet 112a. During this process, the air flows through the motor 121, carrying away some of the heat from the motor 121, thereby achieving heat dissipation for the motor 121.

[0061] Optionally, the housing 121a of the motor 121 is connected to the cylinder 110. The axial direction of the motor 121 is perpendicular to the first direction D1. The axial direction of the motor 121 can also be the second direction D2 shown in the figure. The first air inlet 121b is located at the end of the housing 121a away from the cylinder 110. By providing the first air inlet 121b at the end of the housing 121a away from the cylinder 110, outside air can enter the second cavity 121d of the housing 121a. With the second cavity 121d communicating with the second air intake duct 111c, outside air sequentially enters the first compression chamber 110b through the second cavity 121d, the second air intake duct 111c, and the first air intake duct 112a. During this process, the contact area between the airflow and the motor 121 is larger, enabling sufficient heat exchange with the motor 121, thereby improving the heat dissipation efficiency and effect of the motor 121. Furthermore, the second air intake 111c is located on the side of the cylinder block 111 near the housing 121a, which helps to simplify the structure and reduce costs.

[0062] Optionally, the housing 121a of the motor 121 is not connected to the cylinder 110. The cylinder 110 can be indirectly connected to the motor 121 via an air passage, and the second air intake 111c is connected to the second chamber 121d of the motor 121 via the air passage.

[0063] As shown in Figures 3 and 4, specifically, the cylinder body 111 has a first connecting hole 111d on its end face facing the end cover 112, which connects to the second air intake 111c. The inner wall of the cylinder body 111 has a second connecting hole 111e, which also connects to the second air intake 111c. The outer wall of the cylinder body 111 has a third connecting hole 111f, which connects to the second air intake 111c. Both the second connecting hole 111e and the third connecting hole 111f are located above the first connecting hole 111d. The second connecting hole 111e and the third connecting hole 111f can be directly opposite each other along the radial direction of the cylinder 110, or they can be staggered.

[0064] In the examples shown in Figures 5 to 8, the output shaft 121c of the motor 121 and the crankshaft 122 are constructed as a single unit. The crankshaft 122 is connected to one end of the connecting rod 114 via a bearing. The other end of the connecting rod 114 is connected to a connecting shaft 118 via a bearing. The connecting shaft 118 is connected to the piston 113. Here, the axial direction of the connecting shaft 118 is parallel to the axial direction of the crankshaft 122.

[0065] In other examples, the motor's output shaft can be connected to the crankshaft via a coupling or similar means, so that the motor's output shaft and the crankshaft are fixed relative to each other.

[0066] Referring to Figure 5, and in conjunction with Figures 6 to 8, further, in a plane perpendicular to the first direction, the orthographic projection of the second intake passage 111c is located outside the piston member 113. This ensures that the second intake passage 111c can effectively avoid the movement space of the piston member 113, while also reducing the structural complexity of the first chamber 110a of the cylinder 110.

[0067] Referring to Figures 5 to 7, the second intake passage 111c extends along the first direction. This allows for a shorter size of the second intake passage 111c while ensuring communication between the first compression chamber and the first intake passage 112a, thereby simplifying the structure of the cylinder block 111 and reducing the machining difficulty of the cylinder block 111.

[0068] Second Implementation Method

[0069] Referring to Figures 1 to 4, and Figures 6 and 7, the gas compression apparatus 100 according to the second embodiment of this disclosure is the same as that according to the first embodiment of this disclosure, and will not be described again. The focus here is on describing the differences.

[0070] In this embodiment, the cylinder 110 and piston 113 form an intake chamber 110c. The intake chamber 110c is located between the first compression chamber 110b and the second compression chamber 110d, and is separated from the first compression chamber 110b and the second compression chamber 110d. The cylinder body 111 may include a second intake port 111b and a second intake passage 111c. The second intake port 111b communicates with the intake chamber 110c. The second intake passage 111c communicates with the intake chamber 110c and the first intake passage 112a. By adding the second intake port 111b, the intake volume per unit time can be increased, which is beneficial to increasing the air intake efficiency.

[0071] As shown in Figure 6, as a variation of the second embodiment, the motor 121 in the first embodiment may not have a first air inlet 121b. Only the second air inlet 111b of the cylinder block 111 is retained.

[0072] Third Implementation Method

[0073] Referring to Figures 1 to 4 and Figure 8, the gas compression apparatus 100 according to the third embodiment of this disclosure is the same as that of the gas compression apparatus 100 according to the first embodiment of this disclosure, and will not be described again. The focus here is on explaining the differences.

[0074] In this embodiment, the end cap 112 may include a third air inlet 112b. The third air inlet 112b is connected to the first air inlet 112a. By providing a third air inlet 112b on the end cap 112, the air intake stroke can be shortened and the air intake efficiency can be improved.

[0075] As a variation of the third embodiment, a third air inlet 112b may be provided only on the end cap 112.

[0076] The gas compression device 100 described in the first, second, and third embodiments can be implemented individually, or they can be modified or combined in any way to obtain more embodiments.

[0077] Referring to Figures 1 to 9, embodiments of this disclosure also provide an air suspension 200, which is suitable for a vehicle 300. The air suspension 200 may include the gas compression device 100 described above.

[0078] According to the air suspension 200 disclosed herein, by applying the gas compression device 100 described above, the structure of the air suspension 200 can be simplified, thereby helping to reduce the manufacturing difficulty and production cost of the air suspension 200.

[0079] Referring to FIG9, an embodiment of the present disclosure also provides a vehicle 300. The vehicle 300 includes the air suspension 200 described above.

[0080] According to the embodiments of the present disclosure, by applying the air suspension 200 described above, the structure of the vehicle 300 can be simplified, the cost can be reduced, and to a certain extent, it also helps to achieve the lightweighting of the vehicle 300.

[0081] Unless otherwise defined, the technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this disclosure pertains. The terminology used herein is for descriptive purposes only and is not intended to limit the scope of this disclosure. Terms such as “setup” appearing herein can refer to either a component being directly attached to another component or a component being attached to another component via an intermediary. A feature described in one embodiment herein may be applied, alone or in combination with other features, to another embodiment, unless that feature is not applicable in that other embodiment or is otherwise stated.

[0082] This disclosure has been described through the above embodiments; however, it should be understood that the above embodiments are for illustrative purposes only and are not intended to limit this disclosure to the described embodiments. Those skilled in the art will understand that many more variations and modifications can be made based on the teachings of this disclosure, all of which fall within the scope of protection claimed in this disclosure.

Claims

1. A gas compression device (100), the gas compression device (100) comprising: A cylinder (110) includes a cylinder body (111) and an end cap (112). The end cap (112) is connected to one end of the cylinder body (111) in a first direction (D1) and forms a first cavity (110a) with the cylinder body (111). An air outlet (111a) is provided at the other end of the cylinder body (111) in the first direction (D1). A first air inlet (112a) is formed inside the end cap (112). A piston (113) is movably connected to the first cavity (110a) along the first direction (D1). The piston (113) and the cylinder (110) surround and form a first compression chamber (110b) and a second compression chamber (110d). The first compression chamber (110b) is connected to the outside of the cylinder (110) via the first air inlet (112a). The second compression chamber (110d) is connected to the air outlet (111a). A venting passage (113a) is formed inside the piston (113). The venting passage (113a) is connected to the first compression chamber (110b) and the second compression chamber (110d).

2. The gas compression device (100) according to claim 1, wherein, The gas compression device (100) includes: A first one-way valve (115) is disposed in the first air intake (112a). The first one-way valve (115) is adapted to open when the air pressure in the first compression chamber (110b) is lower than the external atmospheric pressure, so that external gas can enter the first compression chamber (110b).

3. The gas compression device (100) according to claim 2, wherein, The first one-way valve (115) is located at the end of the first intake passage (112a) near the first compression chamber (110b).

4. The gas compression device (100) according to any one of claims 1-3, wherein, The gas compression device (100) includes: A second one-way valve (116) is disposed in the vent (113a). The second one-way valve (116) is adapted to open when the gas pressure in the second compression chamber (110d) is less than the gas pressure in the first compression chamber (110b), so that the gas in the first compression chamber (110b) can enter the second compression chamber (110d).

5. The gas compression device (100) according to claim 4, wherein, The second one-way valve (116) is located at one end of the vent (113a) near the second compression chamber (110d).

6. The gas compression device (100) according to any one of claims 1-5, wherein, The gas compression device (100) includes: A third one-way valve (117) is disposed at the outlet (111a) and is adapted to control the discharge of gas in the second compression chamber (110d) when the piston (113) compresses the gas in the second compression chamber (110d).

7. The gas compression device (100) according to any one of claims 1-6, wherein, The gas compression device (100) further includes: Linkage member (114), one end of which is connected to piston member (113); and A drive assembly (120) is connected to the other end of the connecting rod (114) and is adapted to drive the piston (113) to reciprocate along the first direction (D1) via the connecting rod (114).

8. The gas compression device (100) according to claim 7, wherein, The drive assembly (120) includes a motor (121), and a second cavity (121d) is formed inside the housing (121a) of the motor (121). The housing (121a) has a first air inlet (121b) that communicates with the second cavity (121d). The cylinder block (111) includes a second air intake passage (111c) that communicates with the second cavity (121d) and the first air intake passage (112a).

9. The gas compression device (100) according to claim 8, wherein, The housing (121a) of the motor (121) is connected to the cylinder (110), and the first air inlet (121b) is located at the end of the housing (121a) away from the cylinder (110).

10. The gas compression device (100) according to any one of claims 1-9, wherein, The cylinder (110) and the piston (113) surround and form an intake chamber (110c). The intake chamber (110c) is located between the first compression chamber (110b) and the second compression chamber (110d). The cylinder body (111) includes a second intake port (111b) and a second intake passage (111c). The second intake port (111b) is connected to the intake chamber (110c), and the second intake passage (111c) is connected to the intake chamber (110c) and the first intake passage (112a).

11. The gas compression device (100) according to any one of claims 8 to 10, wherein, In a plane perpendicular to the first direction (D1), the orthographic projection of the second air intake (111c) is located outside the piston (113).

12. The gas compression device (100) according to any one of claims 8 to 11, wherein, The second air intake (111c) extends along the first direction (D1).

13. The gas compression device (100) according to any one of claims 1-12, wherein, The end cap (112) includes a third air inlet (112b) which is connected to the outside of the first air intake (112a) and the cylinder (110).

14. An air suspension (200), wherein, The air suspension (200) includes a gas compression device (100) according to any one of claims 1 to 13.

15. A vehicle (300) comprising an air suspension (200) according to claim 14.

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