Self compensating fluid spring assembly

Details Self compensating fluid spring assembly Self compensating fluid spring assembly

1996-05-07

1998-05-12

Young, Lee

Spring devices

Vehicle

Comprising compressible fluid

267 6427, F16F 904

Patent

active

057495661

ABSTRACT:
This disclosure is directed to a fluid actuated spring assembly for supporting a vehicle load which includes an expandable bellows or chamber having a limiting device disposed internally of the expansion chamber to prohibit or limit the overall height to which the expandable chamber may extend. A control valve is operatively connected to the expandable chamber to control the flow of fluid pressure to and from the expandable chamber, and a valve actuator that is responsive to varying load and/or road conditions is provided to automatically operate the valve to control the flow of fluid pressure to and from the expansion chamber so as to maintain the overall height of the expandable chamber substantially constant, irrespective of varying load and/or road conditions.

REFERENCES:
patent: 1459892 (1923-06-01), Hughes
patent: 4786035 (1988-11-01), Elliott
patent: 4982937 (1991-01-01), Eckel et al.
patent: 5199690 (1993-04-01), Marshall
patent: 5388849 (1995-02-01), Arsenault et al.

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