Solenoid valve and damper

CN122191338APending Publication Date: 2026-06-12SHANGHAI LINTON AUTOMOBILE CHASSIS PARTS MFG CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-12-31
Publication Date
2026-06-12

AI Technical Summary

Technical Problem

In existing vibration dampers, how to more easily open the overflow valve port to effectively reduce the fluid pressure in the cavity near the solenoid valve inlet has become an important concern.

Method used

An electromagnetic valve is designed, including a pilot valve section and a main relief valve section. The inner valve body section is connected to the relief valve seat through a relief valve port. The inner valve body section is movable while the pilot valve body section is fixed in position. The relief valve port is formed by adjusting the movement of the inner valve body section to regulate the fluid pressure. Combined with the elastic element and the connecting structure, the fluid pressure is effectively relieved.

Benefits of technology

It achieves a lower minimum fluid pressure, improves the pressure relief effect of the solenoid valve, meets the damper's fluid pressure regulation requirements, and ensures safe driving and handling performance in the event of power failure or drive failure.

✦ Generated by Eureka AI based on patent content.

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    Figure CN122191338A_ABST
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Abstract

An electromagnetic valve and a shock absorber, in which a pilot valve section includes a pilot valve body and a pilot valve cavity, the pilot valve cavity being communicated with a liquid inlet of the electromagnetic valve via a communication structure of the pilot valve body; a main spill valve section is located at a first side of the pilot valve cavity in a first direction and includes a spill valve body and a spill valve seat; the spill valve body includes an inner valve body section, the inner valve body section including an inner plate-like valve body section, an inner annular valve body section located at an edge of the inner plate-like valve body section, and an inner valve body opening penetrating through the inner plate-like valve body section, the pilot valve body passing through the inner valve body opening; the spill valve seat is located at a side of the spill valve body away from the pilot valve section in the first direction, the inner valve body section is configured to be movable in the first direction, and the pilot valve body remains unchanged in position in the first direction, so that a spill valve port is formed between the inner annular valve body section and the spill valve seat. The electromagnetic valve can more effectively regulate the pressure of the fluid entering into the electromagnetic valve through the spill valve port.
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