Double-electromagnetic-valve shock absorber assembly

Abstract

The invention discloses a double-electromagnetic-valve shock absorber assembly which comprises a cylinder body, a piston, a piston rod, a recovery electromagnetic valve and a compression electromagnetic valve. The cylinder body is provided with a working cavity, a middle cavity and an oil storage cavity; the piston is movably arranged in the working cavity and divides the working cavity into a first working cavity and a second working cavity; the piston rod is connected with the piston; the middle cavity comprises a recovery middle cavity and a compression middle cavity; discharge ports of the recovery electromagnetic valve and the compression electromagnetic valve are communicated with the oil storage cavity; and a compensation valve and a one-way valve are integrally arranged on the recovery electromagnetic valve and the compression electromagnetic valve respectively. According to the double-electromagnetic-valve shock absorber, a bottom valve is omitted, the one-way valve is integrated to the compression electromagnetic valve, reconstruction and function integration of an oil way system are achieved, the bottleneck of a traditional framework is broken through from the two aspects of structure simplification and flow channel optimization, and the structural stability, damping regulation and control precision and cost effectiveness of the shock absorber are remarkably improved.

Description

Technical Field

[0001] This invention relates to the field of vibration damper technology, and in particular to a dual solenoid valve vibration damper assembly. Background Technology

[0002] Existing dual-solenoid valve shock absorbers generally adopt a four-module discrete structure (restoration solenoid valve assembly, compression solenoid valve assembly, piston valve assembly, and bottom valve assembly). With its mature technical architecture and stable performance, it is widely used in vehicle suspension systems.

[0003] However, as vehicle performance requirements continue to increase, the technical bottlenecks of traditional structures are gradually becoming apparent: on the one hand, the complex structure leads to insufficient reliability. Although the bottom valve assembly is responsible for the unidirectional flow control function of oil during the compression stroke, its independent structure results in numerous parts and complex assembly, increasing manufacturing costs and failure rates. On the other hand, the oil circuit design has redundancy. The oil flow path between the bottom valve, piston valve, and solenoid valve requires the coordination of multiple components, which can easily cause pressure loss and response delay, affecting the damping adjustment accuracy.

[0004] Based on this, the present invention proposes a dual solenoid valve vibration damper assembly to solve the problems mentioned above. Summary of the Invention

[0005] The purpose of this invention is to provide a dual solenoid valve vibration damper assembly that solves the technical pain points of traditional structures, such as oil circuit redundancy and response hysteresis, and achieves the effects of structural simplification, damping control optimization, manufacturing cost reduction and reliability improvement.

[0006] To solve the above-mentioned technical problems, the present invention provides a dual solenoid valve shock absorber assembly, including a cylinder, a piston, a piston rod, a recovery solenoid valve, and a compression solenoid valve;

[0007] The cylinder body is closed at both ends and its interior has a working chamber, an intermediate chamber and an oil storage chamber from the inside to the outside;

[0008] The piston is movably disposed in the working chamber, dividing the working chamber into a first working chamber and a second working chamber;

[0009] The piston rod is connected to one end of the piston near the first working chamber and is used to drive the piston to move in the working chamber;

[0010] The intermediate cavity includes a restoration intermediate cavity and a compression intermediate cavity. The restoration intermediate cavity and the compression intermediate cavity are respectively provided with a first through hole and a second through hole at their ends close to each other, and the restoration intermediate cavity and the compression intermediate cavity are respectively provided with a first flow channel connecting the first working cavity and a second flow channel connecting the second working cavity at their ends away from each other.

[0011] The outlets of the recovery solenoid valve and the compression solenoid valve are both connected to the oil storage chamber, and the inlets of the recovery solenoid valve and the compression solenoid valve are respectively connected to the first through hole and the second through hole; a compensation valve and a check valve are respectively integrated on the recovery solenoid valve and the compression solenoid valve.

[0012] Furthermore, when the piston approaches the second flow channel, the compensation valve opens to provide a channel for oil to enter the first through hole from the oil storage chamber;

[0013] When the piston approaches the first flow channel, the one-way valve opens to provide a channel for oil to enter the second through hole from the oil reservoir.

[0014] Furthermore, the cylinder body includes a working cylinder, an intermediate cylinder, and an oil storage cylinder arranged sequentially from the inside to the outside;

[0015] The intermediate cylinder includes a recovery intermediate cylinder, a compression intermediate cylinder, and a sleeve connecting seat;

[0016] The recovery intermediate cylinder and the compression intermediate cylinder are respectively disposed at both ends of the working cylinder, and the ends of the recovery intermediate cylinder and the compression intermediate cylinder that are closest to each other are respectively interference-fitted into both ends of the sleeve connecting seat;

[0017] A sealing ring is installed in the center of the sleeve connecting seat, and the first through hole and the second through hole are respectively opened at both ends of the side wall of the sleeve connecting seat. The sealing ring is in interference contact with the outer side wall of the working cylinder.

[0018] The oil storage cylinder seals around the working cylinder and the intermediate cylinder.

[0019] Furthermore, the end of the intermediate compression cylinder furthest from the sleeve connecting seat is sealed and fixed to the working cylinder by a bottom cover;

[0020] The bottom cover has two circular protrusions arranged in a stepped manner, and the two circular protrusions of the bottom cover are inserted into the working cylinder and the compression intermediate cylinder in sequence from small to large.

[0021] Furthermore, the end of the recovery intermediate cylinder furthest from the sleeve connecting seat is sealed and fixed to the working cylinder via a guide seat;

[0022] The guide seat has a guide hole at its center for the piston rod to pass through, and the guide seat has two circular bosses distributed in a stepped manner. The two circular bosses of the guide seat are inserted into the working cylinder and the recovery intermediate cylinder in sequence from small to large.

[0023] Furthermore, the sleeve connecting seat has an annular protrusion at its center, and a sealing groove is formed at the center of the side wall of the annular protrusion, and the sealing ring is installed in the sealing groove.

[0024] Furthermore, both ends of the sleeve connecting seat are provided with connecting grooves that respectively cooperate with the recovery intermediate cylinder and the compression intermediate cylinder.

[0025] Furthermore, two fixed cylinders are fixed to the outer wall of the oil storage cylinder;

[0026] The recovery solenoid valve and the compression solenoid valve are respectively inserted into the two fixed cylinders and fixed.

[0027] Furthermore, the compression solenoid valve and the check valve are designed as an integrated unit.

[0028] Compared with the prior art, the present invention has at least the following beneficial effects:

[0029] (1) The dual solenoid valve damper provided by the present invention shortens the oil flow path, reduces pressure loss, and improves the damping adjustment response speed by working in coordination with the compensation valve and the compression solenoid valve during the compression stroke; during the recovery stroke, the oil compensation amount is precisely controlled by cooperating with the one-way valve and the recovery solenoid valve to ensure the system pressure balance; the dual valves work together to achieve independent adjustment of compression / recovery damping force, and the response speed is significantly improved.

[0030] (2) The dual solenoid valve vibration damper assembly provided by the present invention eliminates the bottom valve assembly, reduces the number of key components, simplifies the assembly process and reduces manufacturing costs, and at the same time reduces the number of sealing points and reduces the risk of vibration damper leakage.

[0031] In summary, the dual solenoid valve vibration damper provided by this invention eliminates the bottom valve and integrates the one-way valve into the compression solenoid valve, thereby realizing the reconstruction and functional integration of the oil circuit system. It breaks through the bottleneck of the traditional architecture in terms of both structural simplification and flow channel optimization, and significantly improves the structural stability, damping control accuracy and cost-effectiveness of the vibration damper. Attached Figure Description

[0032] Figure 1 This is a schematic diagram of the overall structure of the dual solenoid valve vibration damper assembly in an embodiment of the present invention;

[0033] Figure 2 This is a schematic diagram of the oil path during the restoration process of the dual solenoid valve vibration damper assembly in an embodiment of the present invention;

[0034] Figure 3 This is a schematic diagram of the oil path during the compression process of the dual solenoid valve vibration damper assembly in an embodiment of the present invention;

[0035] Figure 4 This is a schematic diagram of the oil path during the compression process of a shock absorber using a bottom valve in the prior art;

[0036] Figure 5This is a schematic diagram of the oil path in the check valve during the restoration process of the dual solenoid valve vibration damper assembly in an embodiment of the present invention;

[0037] Figure 6 This is a schematic diagram of the sleeve connection seat installation of the dual solenoid valve vibration damper assembly in an embodiment of the present invention;

[0038] Figure 7 This is a schematic diagram of the compression solenoid valve structure of the dual solenoid valve vibration damper assembly in an embodiment of the present invention. Detailed Implementation

[0039] The dual-electromagnetic valve vibration damper assembly of the present invention will now be described in more detail with reference to the schematic diagrams, which illustrate preferred embodiments of the invention. It should be understood that those skilled in the art can modify the invention described herein while still achieving its advantageous effects. Therefore, the following description should be understood as being of general knowledge to those skilled in the art and is not intended to limit the invention.

[0040] The invention is described more specifically by way of example in the following paragraphs with reference to the accompanying drawings. The advantages and features of the invention will become clearer from the following description. It should be noted that the drawings are in a very simplified form and use non-precise proportions, and are only used to facilitate and clarify the illustration of the embodiments of the invention.

[0041] like Figure 1 As shown in the figure, an embodiment of the present invention proposes a dual solenoid valve shock absorber assembly, including a cylinder (not shown in the figure), a piston 1, a piston rod 2, a recovery solenoid valve 3, and a compression solenoid valve 4;

[0042] The cylinder body is closed at both ends and has a working chamber, an intermediate chamber, and an oil storage chamber 9a arranged sequentially from the inside to the outside. The piston 1 is movably disposed in the working chamber, dividing the working chamber into a first working chamber 5a and a second working chamber 5b. The piston rod 2 is connected to the end of the piston 1 near the first working chamber 5a and is used to drive the piston 1 to move in the working chamber. The intermediate chamber includes a recovery intermediate chamber 6a and a compression intermediate chamber 7a. The ends of the recovery intermediate chamber 6a and the compression intermediate chamber 7a near each other are respectively provided with a first through hole 080 and a second through hole 081. The ends of the recovery intermediate chamber 6a and the compression intermediate chamber 7a away from each other are respectively provided with a first flow channel 050 connecting the first working chamber 5a and a second flow channel 051 connecting the second working chamber 5b.

[0043] The discharge ports of the recovery solenoid valve 3 and the compression solenoid valve 4 are both connected to the oil storage chamber 9a, and the inlets of the recovery solenoid valve 3 and the compression solenoid valve 4 are respectively connected to the first through hole 080 and the second through hole 081; the recovery solenoid valve 3 and the compression solenoid valve 4 are respectively integrated with a compensation valve 11 and a one-way valve 12.

[0044] In this embodiment, when the piston 1 approaches the second flow channel 051, the compensation valve 11 opens to provide a channel for oil to enter the first through hole 080 from the oil storage chamber 9a; when the piston 1 approaches the first flow channel 050, the one-way valve 12 opens to provide a channel for oil to enter the second through hole 081 from the oil storage chamber 9a.

[0045] Combined with reference Figure 2 and Figure 3 As shown, the process for independently adjusting the compression / restoration damping force of the shock absorber is roughly as follows:

[0046] (1) Shock absorber recovery stroke: Piston rod 2 moves in the first direction X1 (i.e., moves closer to the first flow channel 050), driving piston 1 to move, increasing the pressure in the first working chamber 5a. At this time, there are two flow paths for the oil:

[0047] ① First oil path: Oil flows from the first working chamber 5a into the second working chamber 5b through piston 1, forming path P1;

[0048] ② Second oil circuit: The oil in the first working chamber 5a flows through the first flow channel 050 through the recovery intermediate chamber 6a and enters the recovery solenoid valve 3. After being regulated by the recovery solenoid valve, the oil flows to the oil storage chamber 9a. At this time, the pressure in the oil storage chamber 9a is higher than that in the compression intermediate chamber 7a. Under the action of the pressure difference, the oil pushes open the elastic valve plate of the one-way valve 12 (e.g., Figure 5 As shown, the final oil flows through the one-way valve 12, passes through the compression intermediate chamber 7a, and then returns to the second working chamber 5b from the second flow channel 051 for compensation, forming path P2. By changing the current of the recovery solenoid valve, the control of the valve core on the throttling area is adjusted, thereby achieving continuous adjustment of the damper's recovery damping force. The entire process can be perfectly achieved even without the bottom valve assembly.

[0049] (2) Shock absorber compression stroke: The piston rod moves in the second direction X2 (i.e., moves closer to the second flow channel 051), driving the piston 1 to move, increasing the pressure in the second working chamber 5b, and at this time the oil also flows through the two oil passages:

[0050] ① First oil path: Oil flows from the second working chamber 5b into the first working chamber 5a through piston 1, forming path P3;

[0051] ② Second oil path: The oil in the second working chamber 5b flows through the second flow channel 051, through the compression intermediate chamber 7a, and into the compression solenoid valve 4. After being regulated by the compression solenoid valve 4, the oil flows to the oil storage chamber 9a. At this time, the pressure in the oil storage chamber 9a is higher than that in the recovery intermediate chamber 6a. Under the action of the pressure difference, the oil pushes open the elastic valve plate of the compensation valve 11. Finally, the oil flows through the compensation valve 11, through the recovery intermediate chamber 6a, and returns to the first working chamber 5a from the first flow channel 050 for compensation, forming path P4. By changing the current of the compression solenoid valve 4, the control of the valve core on the throttling area is adjusted, thereby realizing the continuous adjustment of the compression damping force of the shock absorber.

[0052] Combined with reference Figure 4 Obviously, compared with the existing technology of vibration dampers using bottom valves, the compression stroke of the dual electromagnetic vibration damper assembly provided in this embodiment can eliminate the path of the oil in the second working chamber 5b entering the recovery intermediate chamber 6a from the bottom valve assembly.

[0053] As can be seen from the above, in the compression stroke, the compensation valve 11 and the compression solenoid valve 4 work together to shorten the oil flow path, reduce pressure loss, and improve the damping adjustment response speed of the dual electromagnetic vibration damper assembly provided in this embodiment. In the recovery stroke, the one-way valve 12 and the recovery solenoid valve 3 cooperate to accurately control the oil compensation amount and ensure the system pressure balance. The dual valves work together to achieve independent adjustment of compression / recovery damping force, and the response speed is significantly improved.

[0054] Furthermore, the independent adjustment of compression / recovery damping force does not require the participation of a foot valve, meaning the overall structure can eliminate the need for a foot valve. This reduces the number of critical components, simplifies the assembly process, and lowers manufacturing costs. It also reduces the number of sealing points, thereby reducing the risk of shock absorber leakage.

[0055] In summary, the dual solenoid valve vibration damper provided in this embodiment achieves the reconstruction and functional integration of the oil circuit system by eliminating the bottom valve and integrating the one-way valve into the compression solenoid valve. It breaks through the bottleneck of the traditional architecture in terms of both structural simplification and flow channel optimization, and significantly improves the structural stability, damping control accuracy and cost-effectiveness of the vibration damper.

[0056] In the above embodiment, the cylinder body includes a working cylinder 5, an intermediate cylinder, and an oil storage cylinder 9 arranged sequentially from the inside to the outside; the intermediate cylinder includes a recovery intermediate cylinder 6, a compression intermediate cylinder 7, and a sleeve connecting seat 8; the recovery intermediate cylinder 6 and the compression intermediate cylinder 7 are respectively disposed at both ends outside the working cylinder 5; referring to reference Figure 6The recovery intermediate cylinder 6 and the compression intermediate cylinder 7 are respectively inserted into the two ends of the sleeve connecting seat 8 with an interference fit at their respective ends. A sealing ring 10 is installed in the center of the sleeve connecting seat 8, and the two ends of the side wall of the sleeve connecting seat 8 are respectively provided with the first through hole 080 and the second through hole 081. The sealing ring 10 is in interference contact with the outer side wall of the working cylinder 5. The oil storage cylinder 9 seals and surrounds the working cylinder 5 and the intermediate cylinder.

[0057] Furthermore, the end of the intermediate compression cylinder 7 away from the sleeve connecting seat 8 is sealed and fixed to the working cylinder 5 through the bottom cover 13; the bottom cover 13 has two circular protrusions (not shown in the figure) distributed in a stepped manner, and the two circular protrusions of the bottom cover 13 are sequentially inserted into the working cylinder 5 and the intermediate compression cylinder 7 in order of increasing size.

[0058] Furthermore, the end of the recovery intermediate cylinder 6 away from the sleeve connecting seat 8 is sealed and fixed to the working cylinder 5 through the guide seat 14; the guide seat 14 has a guide hole (not shown in the figure) for the piston rod 2 to pass through in the center, and the guide seat 14 has two circular bosses (not shown in the figure) distributed in a stepped manner, and the two circular bosses of the guide seat 14 are inserted into the working cylinder 5 and the recovery intermediate cylinder 6 in sequence from small to large.

[0059] In this embodiment, the oil storage cylinder 9 surrounds the sidewall of the oil storage chamber 9a; the working cylinder 5 surrounds the sidewall of the working chamber, and its two ends are sealed and fixed by guide seats 14 and bottom covers 13, respectively; the recovery working cylinder 5 surrounds the sidewall of the recovery intermediate chamber 6a, and its two ends are sealed and fixed by guide seats 14 and sleeve connecting seats 8, respectively; the compression intermediate cylinder 7 surrounds the sidewall of the compression intermediate chamber 6b, and its two ends are sealed and fixed by sleeve connecting seats 8 and bottom covers 13, respectively. The guide seats 14 are connected and sealed with the recovery intermediate chamber 6a and the working cylinder 5, the bottom covers 13 are connected with the working cylinder 5 and the compression intermediate cylinder 7, and the sleeve connecting seats 8 are connected with the recovery intermediate chamber 6a and the compression intermediate cylinder 7 by interference fit. This effectively reduces the need for additional seals, thus effectively reducing the complexity of the structure and the manufacturing cost.

[0060] In the above implementation process, the sleeve connecting seat 8 has an annular protrusion 082 at its center, and a sealing groove 083 is formed at the center of the side wall of the annular protrusion 082. The sealing ring 10 is installed in the sealing groove 083. The sealing groove 083 ensures the stable installation of the sealing ring 10, and together with the annular protrusion 082, ensures effective sealing and isolation between the recovery intermediate cavity 6a and the compression intermediate cavity 6b.

[0061] The sealing ring 10 can be an O-ring or an X-ring, but an X-ring is preferred because it has a stronger ability to block gas and liquid under high pressure conditions and is also easier to install.

[0062] Specifically, O-rings have a single circular cross-section, while X-rings have an "X" shaped cross-section with four sealing lips, forming multiple sealing lines on the sealing surface. Furthermore, O-rings are easily squeezed out of the sealing gap due to pressure differences, thus usually requiring a retaining ring. X-rings, on the other hand, have strong resistance to extrusion, eliminating the need for a retaining ring and reducing installation complexity.

[0063] Furthermore, both ends of the sleeve connecting seat 8 are provided with connecting grooves 084 that respectively cooperate with the recovery intermediate cylinder 6 and the compression intermediate cylinder 7. By setting the connecting grooves 084, a limiting end face can be formed in the sleeve connecting seat 8, thereby providing end positioning for the recovery intermediate cavity 6a and the compression intermediate cavity 6b when installing them with the sleeve connecting seat 8.

[0064] In an optional embodiment, two fixed cylinders 15 are fixed to the outer wall of the oil reservoir 9; the recovery solenoid valve 3 and the compression solenoid valve 4 are respectively inserted into the two fixed cylinders 15 and fixed. The fixed cylinders 15 simplify the installation structure of the solenoid valves.

[0065] Specifically, the solenoid valve 3 and the compression solenoid valve 4 can be fixed to their corresponding fixed cylinders 15 by means of threads, which is simple to operate and easy to disassemble.

[0066] In one specific embodiment, in conjunction with reference to Figure 7 The compression solenoid valve 4 and the one-way valve 12 are designed as an integrated unit.

[0067] In traditional split-type designs, connection points between valve bodies (such as sealing surfaces and pipe interfaces) are potential sources of leakage. In this specific embodiment, the integrated design reduces the risk of oil leakage by minimizing such connection points, while also reducing seal failures caused by vibration or temperature changes, thereby improving system reliability and durability.

[0068] Furthermore, the integrated design combines two functional components into one module, reducing the number of parts and assembly steps. This not only lowers manufacturing costs but also simplifies quality control processes and improves production efficiency.

[0069] In summary, compared with the prior art, the present invention has at least the following advantages:

[0070] The dual solenoid valve vibration damper provided by this invention eliminates the bottom valve and integrates the one-way valve into the compression solenoid valve, realizing the reconstruction and functional integration of the oil circuit system. It breaks through the bottleneck of the traditional architecture in terms of both structural simplification and flow channel optimization, and significantly improves the structural stability, damping control accuracy and cost-effectiveness of the vibration damper.

[0071] Obviously, those skilled in the art may make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if such changes and modifications fall within the scope of the claims and their equivalents, the present invention is intended to include such changes and modifications.

Claims

1. A dual-electromagnetic-valve vibration damper assembly, characterized in that, include: Cylinder block, piston, piston rod, reset solenoid valve, and compression solenoid valve; The cylinder body is closed at both ends and its interior has a working chamber, an intermediate chamber and an oil storage chamber from the inside to the outside; The piston is movably disposed in the working chamber, dividing the working chamber into a first working chamber and a second working chamber; The piston rod is connected to one end of the piston near the first working chamber and is used to drive the piston to move in the working chamber; The intermediate cavity includes a restoration intermediate cavity and a compression intermediate cavity. The restoration intermediate cavity and the compression intermediate cavity are respectively provided with a first through hole and a second through hole at their ends close to each other, and the restoration intermediate cavity and the compression intermediate cavity are respectively provided with a first flow channel connecting the first working cavity and a second flow channel connecting the second working cavity at their ends away from each other. The outlets of the recovery solenoid valve and the compression solenoid valve are both connected to the oil storage chamber, and the inlets of the recovery solenoid valve and the compression solenoid valve are respectively connected to the first through hole and the second through hole; a compensation valve and a check valve are respectively integrated on the recovery solenoid valve and the compression solenoid valve.

2. The dual solenoid valve vibration damper assembly as described in claim 1, characterized in that, When the piston approaches the second flow channel, the compensation valve opens to provide a channel for oil to enter the first through hole from the oil storage chamber; When the piston approaches the first flow channel, the one-way valve opens to provide a channel for oil to enter the second through hole from the oil reservoir.

3. The dual solenoid valve vibration damper assembly as described in claim 1, characterized in that, The cylinder body includes a working cylinder, an intermediate cylinder, and an oil storage cylinder arranged sequentially from the inside to the outside; The intermediate cylinder includes a recovery intermediate cylinder, a compression intermediate cylinder, and a sleeve connecting seat; The recovery intermediate cylinder and the compression intermediate cylinder are respectively disposed at both ends of the working cylinder, and the ends of the recovery intermediate cylinder and the compression intermediate cylinder that are closest to each other are respectively interference-fitted into both ends of the sleeve connecting seat; A sealing ring is installed in the center of the sleeve connecting seat, and the first through hole and the second through hole are respectively opened at both ends of the side wall of the sleeve connecting seat. The sealing ring is in interference contact with the outer side wall of the working cylinder. The oil storage cylinder seals around the working cylinder and the intermediate cylinder.

4. The dual solenoid valve vibration damper assembly as described in claim 3, characterized in that, The end of the intermediate compression cylinder away from the sleeve connecting seat is sealed and fixed to the working cylinder by a bottom cover; The bottom cover has two circular protrusions arranged in a stepped manner, and the two circular protrusions of the bottom cover are inserted into the working cylinder and the compression intermediate cylinder in sequence from small to large.

5. The dual solenoid valve vibration damper assembly as described in claim 3 or 4, characterized in that, The end of the recovery intermediate cylinder away from the sleeve connecting seat is sealed and fixed to the working cylinder through a guide seat; The guide seat has a guide hole at its center for the piston rod to pass through, and the guide seat has two circular bosses distributed in a stepped manner. The two circular bosses of the guide seat are inserted into the working cylinder and the recovery intermediate cylinder in sequence from small to large.

6. The dual solenoid valve vibration damper assembly as described in claim 3, characterized in that, The sleeve connector has an annular protrusion at its center, and a sealing groove is formed at the center of the side wall of the annular protrusion. The sealing ring is installed in the sealing groove.

7. The dual solenoid valve vibration damper assembly as described in claim 3, characterized in that, Both ends of the sleeve connecting seat are provided with connecting grooves that respectively match the recovery intermediate cylinder and the compression intermediate cylinder.

8. The dual solenoid valve vibration damper assembly as described in claim 3, characterized in that, Two fixed cylinders are fixed to the outer wall of the oil storage cylinder; The recovery solenoid valve and the compression solenoid valve are respectively inserted into the two fixed cylinders and fixed.

9. The dual solenoid valve vibration damper assembly as described in claim 1, characterized in that, The compression solenoid valve and the one-way valve are designed as an integrated unit.

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