Variable damping device for semi-active suspension of vehicle

摘要

[0001] The present invention relates to a damping force variable device which is economically and safely used by making variable the number of parts while reducing the number of parts. In the past, productivity has been reduced due to a large number of components, The solenoid valve 18 connected to the pump 12 through the two channels 14 and 16 is connected to the adjusting rod 22 for holding the sliding piston 10 A spring 26 mounted on one side of the adjustment rod 22 is connected to the built-in adapter 24 and the sliding piston 10 reciprocates in one direction in the pressure chamber 28, A plurality of induction grooves 32 are formed at the center of the inner periphery so that the oil is pressurized or drained out of the pressure chamber through the two channels formed in the solenoid valve, There is a characteristic that the damping force is changed without permission.