A spring-damper system for a wheel suspension of a motor vehicle comprise a support spring of a spring constant kand a damper acting in parallel to the support spring. A spring element is arranged in series with the support spring and can be controlled by means of a controller in such a way that a…
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 contraction-side chamber, an expansion-side free…
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). Between a first valve (24) and the base…
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 move, they move together in a relative manner…
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 system (40) is provided with an outer tube…
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 all times. The characteristic feature of…
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 throttle (40) in the buffer part.
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.