An electronically controlled vibration damper

Abstract

This invention discloses an electronically controlled vibration damper, comprising a piston assembly, an oil reservoir, an intermediate cylinder, a working cylinder, a solenoid valve assembly, and a passive valve system assembly. The piston assembly is disposed within the working cylinder. The intermediate cylinder and the oil reservoir are sequentially sleeved outside the working cylinder. An inner cavity is formed between the intermediate cylinder and the working cylinder, and an outer cavity is formed between the intermediate cylinder and the oil reservoir. The oil reservoir is equipped with a solenoid valve assembly capable of communicating between the inner and outer cavities. The advantages of this invention are that reducing the use of solenoid valves significantly lowers the manufacturing cost of the product. Furthermore, eliminating one solenoid valve further reduces the overall weight of the product, achieving lightweighting. Moreover, the use of a single valve requires only one oil passage, compared to a dual-valve dual-control system, eliminating one solenoid valve oil passage and requiring only ensuring coaxiality accuracy at one position, thus reducing processing costs and difficulty.

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