Hydro-pneumatic wheel suspension

Details Hydro-pneumatic wheel suspension Hydro-pneumatic wheel suspension

1992-11-19

1993-12-21

Tyson, Karin L.

Land vehicles

Body elevation or tilt

Establishing riding or trim height

230708, 230714, B60G 17015, B60G 21073

Patent

active

052716325

ABSTRACT:
A wheel suspension for a vehicle, in particular for utility and agricultural vehicles, has a hydro-pneumatic spring system arranged between a vehicle body and a wheel support that includes at least one hydraulic cylinder, a hydraulic accumulator arrangement and an intervening valve arrangement. The hydro-pneumatic spring system contains at least two hydraulic accumulators. The hydraulic accumulators can be connected individually or in groups of more than one with the one or more hydraulic cylinders selectively by means of the valve arrangement. Preferably at least two of the hydraulic accumulators are provided with differing pre-loads. In addition load-sensitive damping, a blocking valve and a level control valve that can be controlled by a level control linkage with switches are provided.

REFERENCES:
patent: 3353815 (1967-11-01), Henry-Biabuad
patent: 3468554 (1969-09-01), Parkes
patent: 4555120 (1985-11-01), Frait et al.
patent: 4580797 (1986-04-01), Ericsson

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