HYDRAULIC SHOCK ABSORBER OF AUTOMOBILE SUSPENSION Russian patent published in 2007 - IPC F16F9/50 B60G17/15 

FIELD: transport engineering; suspensions.

SUBSTANCE: proposed suspension hydraulic shock absorber has hydraulic cylinder, rod with piston, throttling holes made in piston, and compression valve and rebound valves. Sock absorber contains additionally external liquid flow main line secured between upper and lower spaces of hydraulic cylinder, with compression bypass spring valve and rebound bypass spring valve installed in parallel with external main line and device to adjust compression ratio of springs of bypass valves. Said device includes step motor and worms with floating nuts installed in compression and rebound valve housings, worms being mechanically coupled with step motor. Worms with floating nuts are set into rotation by step motor simultaneously, owing to corresponding arrangement of bypass valves, and provide synchronous adjustment of compression ratio of valve springs owing to translational displacements of floating nuts along worms. Shock absorber has control unit electrically coupled with step motor.

EFFECT: provision of adjustment of resistance of shock absorber depending on required smoothness, accuracy and operative control within required range owing to adjustment of are of cross section of throttling holes.

1 dwg