Hydraulic shock absorber with pre-loaded valve for linear...

Details Hydraulic shock absorber with pre-loaded valve for linear... Hydraulic shock absorber with pre-loaded valve for linear...

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F16F 9/18 (2006.01) B60G 17/08 (2006.01) F16F 9/34 (2006.01) F16F 9/348 (2006.01)

Patent

CA 1316553

ABSTRACT OF THE DISCLOSURE A hydraulic shock absorber employs first and second stage disc valves arranged in tandem fashion. The first stage disc valve is provided for acting on relatively small pressure difference for enhanced damping characteristics at relatively low piston stroke speed range. On the other hand, the second stage disc valve is provided for acting on greater pressure difference for generating damping farce at higher piston stroke speed range. The second stage disc valve is initially pre-loaded at a predetermined magnitude of load so as to set a pressure relief point of the second stage disc valve at desired piston stroke speed for better damping characteristics of the shock absorber.

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