A shock absorber includes at least one of an expansion-side sensitive unit and a contraction-side sensitive unit. The expansion-side sensitive unit has an expansion-side actuating chamber (E) that communicates with an expansion-side chamber and a contracti...

A position-and-velocity dependent hydraulic damper (10) is provided. The hydraulic damper (10) has piston valve (22) fixed to a tip of a piston rod (11), a base valve (27), and a reservoir chamber (15). The base valve (27) has a compression side port (31)....

The invention relates to a hydraulic device comprising a tubular housing containing a rod to which a plunger is rigidly secured that separates an upper chamber and a lower chamber both filled with a hydraulic fluid, such that, as the plunger and the rod mo...

The present invention provides a guide member for a vehicle shock absorber having a construction with which, even when the guide member contacts an inside tube member, the operation of the vehicle shock absorber is not obstructed. A vehicle shock absorber ...

This invention consists of a suspension system that is a significant improvement over known models, both in simplicity and strength, characterised by the fact that whatever the pressure on the suspension, the wheel remains in correct vertical position at a...

A buffer part (30) includes a piston-cylinder unit (31), the piston of which separates a displacement chamber (55) from one of two chambers (16,17) constituting a working chamber. The displacement chamber is operatively connected to this chamber (16) via a...

The trailer or tractor-drawn agricultural machine has a shock absorber (48') mounted on the piston rod of a hydraulic unit (60) in its suspension. This allows it to travel over obstacles whose height exceeds the stroke of the piston.