Suspension system

Details Suspension system Suspension system

1992-05-27

1994-09-06

Oberleitner, Robert J.

Spring devices

Vehicle

Comprising compressible fluid

267 6425, 267 6426, 280714, B60G 1128

Patent

active

053441249

ABSTRACT:
The present invention pertains to a suspension system, in particular, for wheel support of motor vehicles with at least one shock absorber leg consisting of a cylinder and a piston moving in this cylinder for contraction and extension, and actuated by a hydraulic medium, in particular, an oil. Preferably the suspension system is of the hydropneumatic design, whereby the hydraulic medium flows back and forth upon retraction and extension via a hydraulic connection between the shock absorber leg and at least one hydropneumatic shock absorber reservoir containing a compressible medium so that the reservoir generates a hydraulic pressure by compression of the compressible medium that causes a spring force in the shock absorber leg due to the pressure applied to the piston. During the extension of the shock absorber leg the connection between the cylinder chamber and the reservoir will be alternately blocked and opened via pressure differentials from the cylinder chamber and reservoir controlled by a damping valve.

REFERENCES:
patent: 2035954 (1936-03-01), Focht
patent: 2095112 (1937-10-01), Wallace
patent: 3062330 (1962-11-01), Lyon, Jr.
patent: 3258258 (1966-06-01), Hanna
patent: 4270771 (1981-06-01), Fuji
patent: 4798398 (1989-01-01), Cummins
patent: 4880086 (1989-11-01), Knecht et al.

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