SEMI-ACTIVE VIBRATION DAMPER, DAMPING SYSTEM AND VEHICLE Russian patent published in 2023 - IPC F16F9/504 F16F9/512 B61F5/24 

FIELD: dampers.

SUBSTANCE: semi-active vibration damper contains a hydraulic cylinder and at least two parallel branches connected to two-cylinder blocks, each branch contains a one-way throttle and an adjustable solenoid valve connected in series. The solenoid valve is configured to control the damping factor of the damper. The damper contains an emergency oil line, including a damping hole and an electromagnetic switching valve connected to each other in series, while the valve is configured to activate the emergency oil line when the damper is in passive mode. The damper is configured to switch the branch through which oil flows, as well as to switch on the electromagnetic switching valve and adjustable electromagnetic valves of all branches. The damper is configured to adjust the damping factor of the adjustable solenoid valve in the corresponding branch so that the specified coefficient is minimal by adjusting the control voltage of the adjustable solenoid valve in the remaining branches, and with the possibility of ensuring the flow of oil through all branches, including the emergency oil pipeline, and generating damping force. Also, the application includes a damping system with such a damper and a vehicle including such a system.

EFFECT: ability to control the operational parameters of the damper.

12 cl, 9 dwg