Transverse shock absorber compression valve assembly

By designing the lateral vibration damper compression valve assembly, the compensation valve oil circuit and asymmetric channel distribution is used to solve the problem of air entering the working cylinder during transverse installation, and the performance and reliability of the vibration damper are improved.

CN120274009APending Publication Date: 2025-07-08NANYANGWAY-ASSAUTOVAHICLESHOCKABSORBER CO LTD +1
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Patent Information

Application Number
CN202510356867.9
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-03-25
Publication Date
2025-07-08

AI Technical Summary

Technical Problem

When the existing shock absorber is installed transversely, the air in the upper part of the oil storage cylinder enters the working cylinder through the compensation channel of the compression valve, resulting in the performance of the shock absorber being degraded or failed.

Method used

A lateral vibration absorber compression valve assembly is designed, including a compression valve screw, a compression valve seat and a compression valve nut, and a compensation valve oil circuit is set up. The oil in the oil storage cylinder enters the working cylinder through the compensation valve oil circuit. The compensation valve channel is asymmetrically distributed under the compression valve seat to prevent air from entering the working cylinder.

Benefits of technology

Effectively prevent air from entering the working cylinder from entering the hydraulic cylinder, improve the working performance of the vibration damper, prevent functional defects, and ensure the normal operation of the vibration damper.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention is suitable for the technical field of shock absorbers, and provides a transverse shock absorber compression valve assembly which comprises a compression valve assembly body transversely installed between a working cylinder and an oil storage cylinder base, and the compression valve assembly body and the oil storage cylinder are positioned in the circumferential direction through a centering gasket. The compression valve assembly comprises a compression valve screw, a compression valve seat and a compression valve nut which are transversely arranged, a compensation valve oil way is arranged on the lower portion of the compression valve seat, and oil in the oil storage cylinder enters the working cylinder through the compensation valve oil way to achieve oil exchange. Meanwhile, due to the fact that air can be gathered on the upper portion of the oil storage cylinder due to the fact that the density of the air is smaller than that of oil, and the compensation valve oil way is located below the compression valve assembly, the air in the oil storage cylinder is prevented from entering the working cylinder through the compensation valve oil way, functional defects of the transverse shock absorber are effectively avoided, and the working performance of the transverse shock absorber is improved.
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Description

Technical Field

[0001] The present invention belongs to the technical field of shock absorbers, and particularly relates to a transverse shock absorber compression valve assembly. Background Art

[0002] An automotive suspension shock absorber is an automotive component that connects the vehicle chassis and the body to reduce body vibration. It is an important component in the suspension, which is related to the ride comfort and handling stability of the whole vehicle. However, some shock absorbers are prone to generate abnormal noises during operation, which have an adverse impact on the NVH (Noise, Vibration, Harshness) performance of the whole vehicle. And oil leakage and air leakage of shock absorbers are difficult problems in the shock absorber industry.

[0003] At present, there is air inside the conventional shock absorber oil storage cylinder. When the shock absorber is used vertically, there will be no empty stroke problem. However, when the shock absorber is installed and used horizontally, during the operation of the shock absorber, the compensation channels of the conventional compression valve assembly are circumferentially distributed, and the air in the upper part of the oil storage cylinder will enter the working cylinder through the compensation channels of the compression valve, resulting in a decrease or failure of the shock absorber performance. Summary of the Invention

[0004] The present invention provides a transverse shock absorber compression valve assembly, aiming to solve the problem that when the shock absorber is installed and used horizontally, during the operation of the shock absorber, the compensation channels of the conventional compression valve assembly are circumferentially distributed, and the air in the upper part of the oil storage cylinder will enter the working cylinder through the compensation channels of the compression valve, resulting in a decrease or failure of the shock absorber performance.

[0005] The present invention is implemented as follows. A transverse shock absorber compression valve assembly includes a compression valve assembly horizontally installed between a working cylinder and an oil storage cylinder base. The compression valve assembly is circumferentially positioned with the oil storage cylinder through a centering gasket. Among them, The compression valve assembly includes a horizontally arranged compression valve screw, a compression valve seat and a compression valve nut. A compensation valve oil passage is provided at the lower part of the compression valve seat. The oil in the oil storage cylinder enters the inside of the working cylinder through the compensation valve oil passage to realize oil exchange.

[0006] Optionally, the compensation valve oil passage includes a plurality of compensation valve channels, and the plurality of compensation valve channels are asymmetrically distributed on the compression valve seat.

[0007] Optionally, the plurality of compensation valve channels are evenly distributed in a fan shape on the compression valve seat, and the fan angle is 120 degrees.

[0008] Optionally, a compensation valve limiter, a compensation valve spring and a compensation valve plate are sequentially arranged between the compression valve screw and the compression valve seat.

[0009] Optionally, a compression valve washer, a compression valve plate, a compression valve spring seat and a compression valve spring are sequentially arranged between the compression valve seat and the compression valve nut.

[0010] Optionally, a flanging is provided on the outer periphery of the centering gasket, and a relief groove is provided at the flanging of the centering gasket. A concave point is provided in the middle of the oil storage cylinder. The centering gasket and the concave point in the middle of the oil storage cylinder achieve circumferential positioning of the compression valve assembly and the oil storage cylinder through the relief groove.

[0011] The beneficial effects achieved by the present invention are as follows. Since a transverse shock absorber compression valve assembly provided by the present invention includes a compression valve assembly horizontally installed between a working cylinder and a base of an oil storage cylinder, the compression valve assembly is circumferentially positioned with the oil storage cylinder through a centering gasket. The compression valve assembly includes a horizontally arranged compression valve screw, a compression valve seat and a compression valve nut. A compensation valve oil passage is provided at the lower part of the compression valve seat. The oil in the oil storage cylinder enters the working cylinder through the compensation valve oil passage to realize oil exchange. At the same time, since air is less dense than oil and will accumulate in the upper part of the oil storage cylinder, and the compensation valve oil passage is located below the compression valve assembly, it is possible to prevent the air in the oil storage cylinder from entering the working cylinder through the compensation valve oil passage, effectively avoiding functional defects of the transverse shock absorber, and further improving its working performance. Description of the Drawings

[0012] The drawings here are incorporated into the specification and form a part of this specification, showing embodiments consistent with the present invention and used together with the specification to explain the principles of the present invention.

[0013] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or in the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, for those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0014] Figure 1 It is an overall structural schematic diagram of a transverse shock absorber compression valve assembly provided by the present application.

[0015] Figure 2 It is an exploded structural schematic diagram of the compression valve provided by the present application.

[0016] Figure 3 It is a structural schematic diagram of the compression valve seat provided by the present application.

[0017] Figure 4 It is a structural schematic diagram of the centering gasket provided by the present application.

[0018] Figure 5 It is a cross-sectional structural schematic diagram of a transverse shock absorber compression valve assembly provided by the present application.

[0019] Reference Numerals: 1 - working cylinder, 2 - oil storage cylinder, 3 - compression valve assembly, 4 - centering gasket, 5 - oil storage cylinder base, 31 - compression valve screw, 32 - compensating valve limiter, 33 - compensating valve spring, 34 - compensating valve disc, 35 - compression valve seat, 36 - compression valve washer, 37 - compression valve disc, 38 - compression valve spring seat, 39 - compression valve spring, 40 - compression valve nut, 35a - compensating valve oil passage, 35b - compensating valve channel, 4a - flanging, 4b - relief groove. Detailed Implementation Manner

[0020] In order to make the objectives, technical solutions and advantages of the present invention clearer and more understandable, the present invention will be 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.

[0021] In order to effectively illustrate the embodiments of the present invention, the embodiments of the present application will be described in detail below with reference to the accompanying drawings.

[0022] See Figure 1 The schematic diagram of the relevant embodiments of a lateral shock absorber compression valve assembly shown. The lateral shock absorber compression valve assembly includes a compression valve assembly 3, which is horizontally installed between the working cylinder 1 and the oil storage cylinder base 5. The compression valve assembly 3 is circumferentially positioned with the oil storage cylinder 2 through the centering gasket 4. The compression valve assembly 3 is provided with a compensating valve oil passage 35a. During the working process of the shock absorber, during the recovery stroke, the oil in the oil storage cylinder 2 enters the inside of the working cylinder 1 through the compensating valve oil passage 35a to achieve oil exchange.

[0023] During the specific implementation process, reference can be made to Figure 2 The exploded structure diagram of the compression valve assembly 3 shown, so as to combine Figure 1 to describe the lateral shock absorber compression valve assembly disclosed in the present application in detail. As Figure 2 shown, the compression valve assembly 3 includes a horizontally arranged compression valve screw 31, a compression valve seat 35 and a compression valve nut 40. The lower part of the compression valve seat 35 is provided with a compensating valve oil passage 35a. Through the compensating valve oil passage 35a on the compression valve seat 35, the oil in the oil storage cylinder 2 enters the inside of the working cylinder 1 to achieve oil exchange.

[0024] Of course, in combination with Figure 2As shown, the compression valve screw 31 should pass through the compression valve seat 35 and be connected to the compression valve nut 40. However, in order to ensure the function of the compression valve assembly 3, a compensation valve limiter 32, a compensation valve spring 33, and a compensation valve plate 34 are sequentially arranged between the compression valve screw 31 and the compression valve seat 35. A compression valve washer 36, a compression valve plate 37, a compression valve spring seat 38, and a compression valve spring 39 are sequentially arranged between the compression valve seat 35 and the compression valve nut 40. Of course, although the compression valve screw 31, the compensation valve limiter 32, the compensation valve spring 33, the compensation valve plate 34, the compression valve seat 35, the compression valve washer 36, the compression valve plate 37, the compression valve spring seat 38, the compression valve spring 39, and the compression valve nut 40 are shown as arranged from top to bottom in the figure, in the lateral shock absorber, they should be arranged horizontally from left to right, so as to realize the horizontal placement of the compression valve assembly 3.

[0025] In the specific implementation process, the compensation valve oil passage 35a includes a plurality of compensation valve channels 35b, and the plurality of compensation valve channels 35b are asymmetrically distributed on the compression valve seat 35, as Figure 3 shown, the plurality of compensation valve channels 35b are evenly distributed in a fan shape on the compression valve seat 35, and the fan angle is 120 degrees, that is, as Figure 3 shown, there are 5 compensation valve channels 35b provided on the compression valve seat 35, and the centers of these 5 compensation valve channels 35b are designed at 120 degrees. And in the specific implementation and installation process, when the compression valve assembly 3 is installed in place, it is necessary to ensure that the compensation valve channels 35b are all located below the horizontally arranged compression valve assembly 3. Since air is less dense than oil and will accumulate in the upper part of the oil storage cylinder, the compensation valve channels 35b are located below, thus preventing the air in the oil storage cylinder 2 from entering the working cylinder 1 through the compensation valve channels 35b, effectively avoiding the functional defects of the lateral shock absorber, and further improving its working performance.

[0026] In the specific implementation process, reference can also be made to Figure 4 and Figure 5 the schematic cross-sectional structure diagrams of the centering gasket and the lateral shock absorber compression valve assembly shown, and it is described in combination with the above implementation manner. As Figure 4 shown, the centering gasket 4 is a circular gasket structure, and a flanging (4a) is provided on the outer periphery of the circular gasket. A relief groove (4b) is provided at the flanging (4a) of the centering gasket 4, and a concave point is provided in the middle of the oil storage cylinder 2. During the installation of the compression valve assembly 3, the concave point provided in the middle of the oil storage cylinder 2 is used as a positioning mark, and the centering gasket 4 realizes the circumferential positioning of the compression valve assembly 3 and the oil storage cylinder 2 through the relief groove (4b), and ensures that the compensation valve oil passage 35a of the compression valve assembly 3 is at the lower part of the lateral shock absorber after installation, preventing the air in the upper part of the oil storage cylinder 2 from entering the working cylinder 1.

[0027] Of course, in the specific implementation process, when installing its structure according to the above implementation manner, during the recovery stroke of the lateral shock absorber, the oil in the oil storage cylinder 2 flows through the compensation valve channel 35b of the compression valve seat 35, deforming the compensation valve spring 33 through oil pressure, thereby pushing open the compensation valve plate 34; enabling the oil in the oil storage cylinder 2 to enter the inside of the working cylinder through the compensation valve channel 35b; at the same time, since the compensation valve channel 35b of the compression valve seat 35 is arranged asymmetrically and concentrated below the shock absorber, and since air is less dense than oil and will accumulate in the upper part of the oil storage cylinder; thus preventing the air in the oil storage cylinder 2 from entering the working cylinder 1 through the compression valve seat 35, effectively avoiding functional defects of the lateral shock absorber, and further improving its working performance.

[0028] Of course, in the specific implementation process, the structure of the shock absorber is not limited to the above structure proposed in this application. However, the specific structure disclosed in this application is the main structural component for solving the technical problems of this application. For other related structures, reference can be made to the descriptions of shock absorbers in the prior art, and no detailed elaboration will be provided here.

[0029] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A transverse shock absorber compression valve assembly, characterized in that, It includes a compression valve assembly (3) horizontally installed between a working cylinder (1) and a storage oil cylinder base (5), and the compression valve assembly (3) is circumferentially positioned with respect to the storage oil cylinder (2) through a centering gasket (4), wherein, the compression valve assembly (3) includes a horizontally arranged compression valve screw (31), a compression valve seat (35) and a compression valve nut (40), a compensation valve oil passage (35a) is arranged at the lower part of the compression valve seat (35), and the oil in the storage oil cylinder (2) enters the inside of the working cylinder (1) through the compensation valve oil passage (35a) to realize oil exchange.

2. The transverse shock absorber compression valve assembly according to claim 1, characterized in that The compensation valve oil passage (35a) includes a plurality of compensation valve channels (35b), and the plurality of compensation valve channels (35b) are asymmetrically distributed on the compression valve seat (35).

3. The lateral shock absorber compression valve assembly according to claim 2, characterized in that, The plurality of compensation valve channels (35b) are evenly distributed in a fan shape on the compression valve seat (35), and the fan angle is 120 degrees.

4. The lateral shock absorber compression valve assembly according to claim 1, wherein, A compensation valve stopper (32), a compensation valve spring (33) and a compensation valve disc (34) are sequentially arranged between the compression valve screw (31) and the compression valve seat (35).

5. The lateral shock absorber compression valve assembly according to claim 4, characterized in that, A compression valve washer (36), a compression valve disc (37), a compression valve spring seat (38) and a compression valve spring (39) are sequentially arranged between the compression valve seat (35) and the compression valve nut (40).

6. The compression valve assembly of the lateral shock absorber according to claim 1, characterized in that, A flanging (4a) is arranged on the outer periphery of the centering gasket (4), and a relief groove (4b) is arranged at the flanging (4a) of the centering gasket (4). A concave point is arranged in the middle of the storage oil cylinder (2), and the compression valve assembly (3) is circumferentially positioned with respect to the storage oil cylinder (2) through the relief groove (4b) and the concave point in the middle of the storage oil cylinder (2).

Citation Information

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