Air compressor for automotive air suspension systems

Abstract

The utility model provides an air compressor for an automobile air suspension system, wherein a dryer comprises a drying barrel provided with at least two drying chambers, a filter assembly provided in the drying barrel, and a desiccant clamped in the filter assembly, wherein the drying barrel is provided with an open portion for introducing compressed air into each drying chamber and an exhaust port respectively connected with at least two drying chambers. Since at least two drying chambers arranged side by side are barrel-shaped or columnar chambers which are not connected to each other and are axially parallel to the flow direction of the compressed air, and the axial direction of the columnar desiccant filled in each drying chamber is parallel to the flow direction of the compressed air, during the process of the compressed air flowing through the dryer, the compressed air can be divided into several branches and flow through at least two drying chambers of the dryer respectively, so as to reduce or eliminate the blocking effect of the dryer on the air compressor on the compressed air flowing through, improve the timeliness of the compressed air input into the air storage container, and improve the drying and moisture absorption capacity and working efficiency of the dryer.

Description

Technical Field

[0001] The utility model belongs to the technical field of air compression equipment, and in particular relates to an air compressor used for an automobile air suspension system. Background Art

[0002] The air compressor used in the automobile air suspension system compresses the input air to provide high-pressure compressed air, and inputs the compressed air into air storage containers such as air tanks or air springs to improve the stability, smoothness and comfort of automobile driving. At present, for air compressors integrated with dryers, due to the unreasonable structural design of the dryer, the compressed air passing through the dryer is easily blocked, which not only affects the timeliness of the compressed air input to the air storage container, but also reduces the drying and moisture absorption capacity and drying efficiency of the dryer. Utility Model Content

[0003] Based on the above-mentioned problems existing in the prior art, the purpose of the embodiment of the utility model is to provide an air compressor for an automobile air suspension system, so as to solve the technical problem that the dryer integrated in the air compressor in the prior art easily forms a blocking effect on the compressed air flowing through, which not only affects the timeliness of the compressed air input into the air storage container, but also reduces the drying moisture absorption capacity and drying work efficiency of the dryer.

[0004] To achieve the above-mentioned purpose, the technical solution adopted by the utility model is: to provide an air compressor for an automobile air suspension system, comprising:

[0005] An air compression mechanism, used for compressing air, wherein the air compression mechanism is provided with an air inlet and an air outlet;

[0006] A dryer for drying compressed air, the dryer comprising a drying barrel provided with at least two drying chambers, a filter assembly provided in the drying barrel, and a desiccant clamped in the filter assembly, the drying barrel being provided with an open portion communicating with the air outlet holes and introducing the compressed air into each of the drying chambers, and an exhaust port communicating with the at least two drying chambers respectively;

[0007] an air storage container, used to store compressed air, the air storage container being in communication with the exhaust port; and

[0008] an exhaust valve, used to selectively open or close the exhaust port, the exhaust valve being installed in the exhaust port;

[0009] Among them, at least two of the drying chambers are barrel-shaped or columnar chambers that are not connected to each other and whose axial direction is parallel to the flow direction of compressed air. At least two of the drying chambers are arranged side by side. The desiccant is filled in each of the drying chambers to form a columnar drying body, and the axial direction of the columnar drying body is parallel to the flow direction of compressed air.

[0010] Furthermore, the filter assembly includes a first filter element disposed in each of the drying chambers and adjacent to the open portion and a second filter element disposed in each of the drying chambers and adjacent to the exhaust port, and the desiccant is sandwiched between the first filter element and the second filter element.

[0011] Further, the first filter element includes a first filter paper and a first filter plate supporting the first filter paper; and / or the second filter element includes a second filter paper and a second filter plate supporting the second filter paper.

[0012] Furthermore, the dryer further comprises an elastic member for pressing the first filter member toward the second filter member, a first end of the elastic member is connected to the drying barrel, and a second end of the elastic member abuts against the first filter member.

[0013] Furthermore, the elastic member is a spring, and the dryer further comprises a sleeve bracket for straightening the spring, wherein the sleeve bracket is sleeved on the outside of the spring.

[0014] Further, the sleeve support is accommodated and positioned in the open portion.

[0015] Furthermore, the air compressor for the automobile air suspension system also includes a valve body seat for connecting the dryer to the air compression mechanism, and the valve body seat is provided with a gas buffer chamber connecting the air outlet and the open portion.

[0016] Furthermore, a closing cover for closing the open portion is provided on the valve body seat, a first connecting ear is provided on the drying barrel, and a second connecting ear matching the first connecting ear is correspondingly provided on the closing cover, and the air compressor for the automobile air suspension system also includes a fastening bolt for fastening the first connecting ear and the second connecting ear.

[0017] Furthermore, a first pressure relief channel for pressure relief and a second pressure relief channel connecting the first pressure relief channel and each drying chamber are provided on the valve body seat, and a pressure relief valve is provided in the first pressure relief channel.

[0018] Further, the air compression mechanism includes a compression cylinder, a piston assembly arranged in the compression cylinder and a driving mechanism for driving the piston assembly to move, the compression cylinder is provided with a first piston cylinder, a second piston cylinder and a cavity, the cavity is located between the first piston cylinder and the second piston cylinder, the piston assembly includes a first piston slidably arranged in the first piston cylinder, a second piston slidably arranged in the second piston cylinder, and a driving part connecting the first piston and the second piston, the driving part is connected to the driving mechanism, and the compression cylinder is provided with the air inlet and the air outlet.

[0019] Compared with the prior art, the above one or more technical solutions in the embodiments of the present invention have at least one of the following beneficial effects:

[0020] In the embodiment of the utility model, the air compressor for automobile air suspension system comprises a dryer including a dryer barrel provided with at least two dryer chambers, a filter assembly provided in the dryer barrel, and a desiccant clamped in the filter assembly. The dryer barrel is provided with an open portion connected with an air outlet and introducing compressed air into each dryer chamber respectively, and an exhaust port respectively connected with at least two dryer chambers. The air storage container is connected with the exhaust port, and an exhaust valve is installed in the exhaust port. Since at least two dryer chambers are barrel-shaped or columnar chambers that are not connected with each other and are axially parallel to the flow direction of compressed air, at least two dryer chambers are arranged side by side, and desiccant is filled in each dryer chamber to form a columnar dryer, and the axial direction of the columnar dryer is parallel to the flow direction of compressed air. When the air compression mechanism compresses the gas, the compressed air compressed by the air compression mechanism can enter the dryer through the air outlet. In the process of compressed air flowing through the dryer, the compressed air can be divided into several branches and flow through at least two drying chambers of the dryer respectively, so as to reduce or eliminate the blocking effect of the dryer on the air compressor on the compressed air flowing through. This can not only improve the timeliness of compressed air input to the air storage container, but also improve the drying moisture absorption capacity and drying work efficiency of the dryer. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0022] Figure 1 A schematic diagram of the three-dimensional structure of an air compressor for an automobile air suspension system provided by an embodiment of the utility model;

[0023] Figure 2An exploded view of an air compressor for an automobile air suspension system provided by an embodiment of the utility model;

[0024] Figure 3 An assembly diagram of a dryer and a valve body seat provided in an embodiment of the utility model;

[0025] Figure 4 A schematic cross-sectional view of the dryer and valve body seat provided in an embodiment of the utility model;

[0026] Figure 5 An exploded view of a drying barrel and a valve body seat provided in an embodiment of the utility model;

[0027] Figure 6 A schematic cross-sectional view of the air compression mechanism provided in an embodiment of the utility model;

[0028] Figure 7 A three-dimensional structural schematic diagram of an air compression mechanism provided in an embodiment of the utility model;

[0029] Figure 8 An exploded view of a compression cylinder provided by an embodiment of the utility model;

[0030] Fig. 9 A schematic diagram of the three-dimensional structure of a cylinder head provided in an embodiment of the utility model;

[0031] Fig.10 An assembly diagram of a cylinder head and a second exhaust valve plate provided in an embodiment of the utility model;

[0032] Fig.11 An assembly diagram of a first piston and a first intake valve plate provided in an embodiment of the utility model;

[0033] Fig.12 This is an exploded view of the first piston and the first intake valve plate provided in an embodiment of the utility model.

[0034] Among them, the reference numerals in the figure are:

[0035] 1-air compression mechanism; 11-compression cylinder; 111-cylinder body; 112-cylinder head; 113-first piston cylinder; 114-second piston cylinder; 115-bottom opening; 12-piston assembly; 121-first piston; 122-second piston; 123-driving part; 13-driving mechanism; 14-air inlet; 15-air outlet;

[0036] 2-dryer; 21-drying barrel; 211-opening portion; 212-exhaust port; 22-filter assembly; 221-first filter element; 2211-first filter paper; 2212-first filter plate; 222-second filter element; 2221-second filter paper; 2222-second filter plate; 23-desiccant; 24-sleeve bracket; 25-elastic member;

[0037] 3-exhaust valve; 4-drying chamber;

[0038] 5-valve body seat; 51-closing cover; 52-first pressure relief channel; 53-second pressure relief channel;

[0039] 6-first connecting ear; 7-second connecting ear; 8-air inlet;

[0040] 9-first air inlet valve plate; 10-middle passage; 20-air outlet passage;

[0041] 30 - second air outlet valve plate; 40 - air intake passage; 50 - second air intake valve plate;

[0042] 60-first air outlet valve plate; 70-muffler; 80-air relief valve; 90-fastening bolts. DETAILED DESCRIPTION

[0043] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0044] It should be noted that when an element is referred to as being "connected to" or "set on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element. In addition, the terms "first", "second", "third" and "fourth" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first", "second", "third" and "fourth" can explicitly or implicitly include one or more of the features. In the description of the utility model, the meaning of "multiple" is two or more, unless otherwise clearly specified and specifically defined. In the description of the utility model, it should be noted that, unless otherwise clearly specified and defined, the terms "installed", "connected" and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0045] Reference throughout the specification to "one embodiment" or "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment of the present application. Thus, when the phrases "in one embodiment," "in some embodiments," or "in some of these embodiments" appear in various places throughout the specification, not all references are to the same embodiment. Furthermore, in one or more embodiments, the particular features, structures, or characteristics may be combined in any suitable manner.

[0046] Please also read Figures 1 to 12The air compressor for automobile air suspension system provided by the embodiment of the utility model is now described. The air compressor for automobile air suspension system provided by the embodiment of the utility model comprises an air compression mechanism 1, a dryer 2, an air storage container and an exhaust valve 3. The air compression mechanism 1 is used to compress air, and an air inlet 14 and an air outlet 15 are provided on the air compression mechanism 1. The dryer 2 is used to dry the compressed air. The dryer 2 comprises a drying barrel 21 provided with at least two drying chambers 4, a filter assembly 22 provided in the drying barrel 21 and a desiccant 23 sandwiched in the filter assembly 22. The drying barrel 21 is provided with an open portion 211 connected to the air outlet 15 and introducing the compressed air into each drying chamber 4 respectively, and an exhaust port 212 respectively connected to at least two drying chambers 4. The air storage container is used to store compressed air, and the air storage container is connected to the exhaust port 212. The exhaust valve 3 is used to selectively open or close the exhaust port 212, and the exhaust valve 3 is installed in the exhaust port 212. Among them, at least two drying chambers 4 are barrel-shaped or columnar chambers that are not connected to each other and whose axial direction is parallel to the flow direction of the compressed air. At least two drying chambers 4 are arranged side by side. The desiccant 23 is filled in each drying chamber 4 to form a columnar drying body, and the axial direction of the columnar drying body is parallel to the flow direction of the compressed air. When the air compression mechanism 1 compresses the gas, the compressed air compressed by the air compression mechanism 1 can enter the dryer 2 through the air outlet 15, and the air dried by the dryer 2 is then input into the gas storage container through the exhaust port 212 for storage. In the process of compressed air flowing through the dryer 2, since the dryer includes a drying barrel 21 with at least two drying chambers 4, and the at least two drying chambers 4 are barrel-shaped or columnar chambers that are not interconnected and axially parallel to the flow direction of the compressed air, and the columnar desiccant 23 filled in each drying chamber 4 is axially parallel to the flow direction of the compressed air, the compressed air can be divided into several branches and flow through at least two drying chambers 4 of the dryer 2 respectively, so as to reduce or eliminate the blocking effect of the dryer 2 on the air compressor on the compressed air flowing through, which can not only improve the timeliness of the compressed air input to the air storage container, but also improve the drying moisture absorption capacity and drying work efficiency of the dryer 2. When the air storage container is deflated (depressurized), the exhaust valve 3 opens the exhaust port 212, and the high-pressure airflow in the air storage container is divided into at least two paths to flow through at least two drying chambers 4 of the dryer 2 and be discharged, so as to realize the back-blowing of the dryer 2, and use the high-pressure gas to take out the moisture and / or dust in the dryer 2 in the reverse direction.

[0047] Compared with the prior art, the air compressor for automobile air suspension system provided by the embodiment of the utility model comprises a dryer 2 including a dryer barrel 21 provided with at least two dryer chambers 4, a filter assembly 22 provided in the dryer barrel 21, and a desiccant 23 sandwiched in the filter assembly 22. The dryer barrel 21 is provided with an open portion 211 connected to the air outlet 15 and introducing compressed air into each dryer chamber 4 respectively, and an exhaust port 212 respectively connected to at least two dryer chambers 4. The air storage container is connected to the exhaust port 212, and an exhaust valve 3 is installed in the exhaust port 212. Since at least two dryer chambers 4 are barrel-shaped or columnar chambers that are not connected to each other and are axially parallel to the flow direction of the compressed air, at least two dryer chambers 4 are arranged side by side, and the desiccant 23 is filled in each dryer chamber 4 to form a columnar dry body, and the axial direction of the columnar dry body is parallel to the flow direction of the compressed air. When the air compression mechanism 1 compresses the gas, the compressed air compressed by the air compression mechanism 1 can enter the dryer 2 through the air outlet 15. In the process of compressed air flowing through the dryer 2, the compressed air can be divided into several branches and flow through at least two drying chambers 4 of the dryer 2 respectively, so as to reduce or eliminate the blocking effect of the dryer 2 on the air compressor on the compressed air flowing through, which can not only improve the timeliness of the compressed air input to the air storage container, but also improve the drying moisture absorption capacity and drying work efficiency of the dryer 2.

[0048] Please refer to Figure 2 and Figure 4 In some embodiments, the filter assembly 22 includes a first filter element 221 disposed in each drying chamber 4 and adjacent to the open portion 211, and a second filter element 222 disposed in each drying chamber 4 and adjacent to the exhaust port 212, and the desiccant 23 is sandwiched between the first filter element 221 and the second filter element 222. In this embodiment, the desiccant 23 is sandwiched between the first filter element 221 and the second filter element 222 to prevent the desiccant 23 from becoming loose and affecting the filtering effect.

[0049] Please refer to Figure 2 and Figure 4 In some embodiments, in order to disperse the airflow through the desiccant 23 sandwiched between the first filter element 221 and the second filter element 222, the first filter element 221 includes a first filter paper 2211 and a first filter plate 2212 supporting the first filter paper 2211, and / or the second filter element 222 includes a second filter paper 2221 and a second filter plate 2222 supporting the second filter paper 2221.

[0050] Please refer to Figure 2 and Figure 4In some of the embodiments, in order to enhance the compactness of the desiccant 23 sandwiched between the first filter element 221 and the second filter element 222 and prevent the desiccant 23 from becoming loose and affecting the filtering effect, the dryer 2 also includes an elastic member 25 for pressing the first filter element 221 toward the second filter element 222, wherein the first end of the elastic member 25 is connected to the drying barrel 21, and the second end of the elastic member 25 abuts against the first filter element 221.

[0051] Please refer to Figure 2 and Figure 4 In some embodiments, the elastic member 25 is a spring, and the dryer 2 further includes a sleeve bracket 24 for straightening the spring. The sleeve bracket 24 is sleeved on the outside of the spring, which can improve the stability of the spring pressing against the first filter element 221.

[0052] Please refer to Figure 2 and Figure 4 In some of the embodiments, the sleeve bracket 24 is accommodated and positioned in the open portion 211, which enhances the stability of the sleeve bracket 24 and the spring installation.

[0053] Please refer to Figure 1 , Figure 3 , Figure 4 and Figure 5 In some embodiments, the air compressor for the automobile air suspension system also includes a valve body seat 5 for connecting the dryer 2 to the air compression mechanism 1, and the valve body seat 5 is provided with a gas buffer chamber connecting the air outlet 15 and the open portion 211. The compressed air is first discharged into the gas buffer chamber through the air outlet 15 for buffering and decompression, so that the high-pressure airflow can be better diverted to at least two drying chambers 4 flowing through the drying barrel 21, so as to reduce or eliminate the dryer 2 on the air compressor. The blocking effect on the compressed air flowing through can not only improve the timeliness of the compressed air input into the air storage container, but also improve the drying and moisture absorption capacity and drying work efficiency of the dryer 2.

[0054] Please refer to Figure 2 , Figure 3 , Figure 4 and Figure 5 In some of the embodiments, in order to facilitate the sealing of the open portion 211 of the drying barrel 21 and the connection between the drying barrel 21 and the valve body seat 5, a closing cover 51 for closing the open portion 211 is provided on the valve body seat 5, a first connecting ear 6 is provided on the drying barrel 21, and a second connecting ear 7 matching the first connecting ear 6 is correspondingly provided on the closing cover 51. The air compression mechanism 1 for the automobile air suspension system also includes a fastening bolt 90 for fastening the first connecting ear 6 and the second connecting ear 7.

[0055] Please refer to Figure 3 , Figure 4 , Figure 5 and Figure 7 In some embodiments, the valve body seat 5 is further provided with a first pressure relief channel 52 for pressure relief and a second pressure relief channel 53 connecting the first pressure relief channel 52 and each drying chamber 4, and a pressure relief valve 80 is provided in the first pressure relief channel 52. When the gas storage container is deflated (pressure relieved), the switch valve closes the air outlet 15, and the pressure relief valve 80 opens the first pressure relief channel 52, and the high-pressure airflow in the gas storage container is discharged through each drying chamber 4, the second pressure relief channel 53 and the first pressure relief channel 52 in sequence. In addition, a muffler 70 is provided on the first pressure relief channel 52. Before the high-pressure airflow enters the compression cylinder 11 of the air compression mechanism 1, the noise generated when the high-pressure airflow flows is eliminated by the muffler 70, thereby consuming sound energy, thereby reducing the noise generated when the pressure is relieved.

[0056] Please refer to Figure 6 , Figure 7 and Figure 8 In some embodiments, the air compression mechanism 1 includes a compression cylinder 11, a piston assembly 12 disposed in the compression cylinder 11, and a driving mechanism 13 for driving the piston assembly 12 to move. The compression cylinder 11 is provided with a first piston cylinder 113, a second piston cylinder 114, and a cavity, and the cavity is located between the first piston cylinder 113 and the second piston cylinder 114. Please refer to Figure 2 and Figure 6 The piston assembly 12 includes a first piston 121 slidably disposed in a first piston cylinder 113, a second piston 122 slidably disposed in a second piston cylinder 114, and a driving portion 123 connecting the first piston 121 and the second piston 122. The driving portion 123 is connected to the driving mechanism 13. An air inlet 14 and an air outlet 15 are provided on the compression cylinder 11. The piston assembly 12 is generally axially symmetrical, and the center of mass of the piston assembly 12 is located on the central axis. The compression cylinder 11 includes a cylinder body 111 and a cylinder head 112. The piston assembly 12 is installed through the bottom opening 115 of the cylinder body 111, and then the bottom opening 115 of the cylinder body 111 is sealed and covered by the cylinder head 112. Please refer to Fig.11 and Fig.12The first piston 121 is located at the lower end. The size of the first piston 121 matches the inner side wall of the first piston cylinder 113. The first piston 121 is provided with an air inlet hole 8. A first air inlet valve plate 9 is provided on one side of the air inlet hole 8. The first air inlet valve plate 9 is a one-way valve. When the first air inlet valve plate 9 is subjected to external gas pressure, the first air inlet valve plate 9 opens. At this time, the gas can only be input into the first piston cylinder 113 below. When the external gas is input into the cavity of the cylinder body 111 through the labyrinth-type silencer channel provided at the air inlet port 14, the gas then enters the air inlet hole 8 on the first piston 121. At this time, the first air inlet valve plate 9 opens under the pressure of the external gas, and the gas enters the first piston cylinder 113 for compression. The size of the second piston 122 matches the inner side wall of the second piston cylinder 114. When the piston assembly 12 is working, the first piston 121 and the second piston 122 are driven by the driving mechanism 13 to perform piston motion in the first piston cylinder 113 and the second piston cylinder 114 to compress the air. Figure 7 , Figure 8 , Fig. 9 and Fig.10 , an intermediate passage 10 connecting the first piston cylinder 113 and the second piston cylinder 114 is also provided on the cylinder body 111, and the gas is compressed in the first stage through the first piston cylinder 113, and the gas after the first stage compression is input into the second piston cylinder 114 through the intermediate passage 10 for secondary compression. An outlet passage 20 is provided on the cylinder head 112, and the outlet passage 20 is connected with one end of the intermediate passage 10, and a second outlet valve plate 30 is provided at the connecting position of the outlet passage 20 and the intermediate passage 10, and the second outlet valve plate 30 is a one-way valve. An inlet passage 40 is opened on the top of the second piston cylinder 114, and an outlet hole 15 is provided on the top of the cylinder body 111 of the compression cylinder 11, and the inlet passage 40 is connected with the other end of the intermediate passage 10, and a second inlet valve plate 50 is provided on the inlet passage 40, and the second inlet valve plate 50 is a one-way valve. At the same time, a first outlet valve plate 60 (switching valve) is provided on the outlet hole 15, and the first outlet valve plate 60 is a one-way valve. When the air compressor is working, external gas is output to the cavity of the cylinder body 111 through the intake pipe; at this time, the first piston 121 and the second piston 122 are driven by the driving mechanism 13 to perform piston motion in the first piston cylinder 113 and the second piston cylinder 114 respectively; then the gas enters the intake hole 8 on the first piston 121, and at this time, the first intake valve plate 9 is opened under the pressure of the external gas, and the gas enters the first piston cylinder 113 for compression. After the compression is completed, the gas flows to the middle passage 10 through the outlet channel 20 on the cylinder head 112 and opens the second outlet valve plate 30, and then enters the intake channel 40 at the top of the second piston cylinder 114, opens the second intake valve plate 50 and enters the second piston cylinder 114 for secondary compression. After the compression is completed, the high-pressure gas is discharged through the outlet hole 15 and opens the first outlet valve plate 60.

[0057] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An air compressor for an automobile air suspension system, characterized in that: include: An air compression mechanism, used for compressing air, wherein the air compression mechanism is provided with an air inlet and an air outlet; A dryer for drying compressed air, the dryer comprising a drying barrel provided with at least two drying chambers, a filter assembly provided in the drying barrel, and a desiccant clamped in the filter assembly, the drying barrel being provided with an open portion communicating with the air outlet holes and introducing the compressed air into each of the drying chambers, and an exhaust port communicating with the at least two drying chambers respectively; An air storage container, used for storing compressed air, the air storage container being in communication with the exhaust port; as well as an exhaust valve, used to selectively open or close the exhaust port, the exhaust valve being installed in the exhaust port; Among them, at least two of the drying chambers are barrel-shaped or columnar chambers that are not connected to each other and whose axial direction is parallel to the flow direction of compressed air. At least two of the drying chambers are arranged side by side. The desiccant is filled in each of the drying chambers to form a columnar drying body, and the axial direction of the columnar drying body is parallel to the flow direction of compressed air.

2. The air compressor for an automobile air suspension system according to claim 1, characterized in that: The filter assembly includes a first filter element disposed in each drying chamber and adjacent to the open portion and a second filter element disposed in each drying chamber and adjacent to the exhaust port. The desiccant is sandwiched between the first filter element and the second filter element.

3. The air compressor for an automobile air suspension system according to claim 2, characterized in that: The first filter element includes a first filter paper and a first filter plate supporting the first filter paper; and / or the second filter element includes a second filter paper and a second filter plate supporting the second filter paper.

4. The air compressor for an automobile air suspension system according to claim 2, characterized in that: The dryer further comprises an elastic member for pressing the first filter member toward the second filter member, wherein a first end of the elastic member is connected to the drying barrel, and a second end of the elastic member abuts against the first filter member.

5. The air compressor for an automobile air suspension system according to claim 4, characterized in that: The elastic member is a spring, and the dryer further comprises a sleeve bracket for straightening the spring, wherein the sleeve bracket is sleeved on the outer side of the spring.

6. The air compressor for an automobile air suspension system according to claim 5, characterized in that: The sleeve holder is received and positioned in the open portion.

7. The air compressor for an automobile air suspension system according to claim 1, characterized in that: The air compressor for the automobile air suspension system also includes a valve body seat for connecting the dryer to the air compression mechanism, and the valve body seat is provided with a gas buffer cavity communicating with the air outlet and the open portion.

8. The air compressor for an automobile air suspension system according to claim 7, characterized in that: The valve body seat is provided with a closing cover for closing the open portion, the drying barrel is provided with a first connecting ear, and the closing cover is correspondingly provided with a second connecting ear matching the first connecting ear, and the air compressor for the automobile air suspension system also includes a fastening bolt for fastening the first connecting ear and the second connecting ear.

9. The air compressor for an automobile air suspension system according to claim 7, characterized in that: The valve body seat is also provided with a first pressure relief channel for pressure relief and a second pressure relief channel connecting the first pressure relief channel with each of the drying chambers, and a pressure relief valve is provided in the first pressure relief channel.

10. The air compressor for an automobile air suspension system according to any one of claims 1 to 9, characterized in that: The air compression mechanism includes a compression cylinder, a piston assembly arranged in the compression cylinder, and a driving mechanism for driving the piston assembly to move. The compression cylinder is provided with a first piston cylinder, a second piston cylinder and a cavity, and the cavity is located between the first piston cylinder and the second piston cylinder. The piston assembly includes a first piston slidably arranged in the first piston cylinder, a second piston slidably arranged in the second piston cylinder, and a driving part connecting the first piston and the second piston, the driving part is connected to the driving mechanism, and the compression cylinder is provided with the air inlet and the air outlet.

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