Hydropneumatic suspension system

Details Hydropneumatic suspension system Hydropneumatic suspension system

1990-10-25

1993-09-21

Tyson, Karin L.

Land vehicles

Wheeled

Running gear

B60G 1126

Patent

active

052462471

ABSTRACT:
A hydropneumatic suspension system for motor vehicles. The system contains at least one piston cylinder unit (202) including a cylinder (212) and a piston (214) cooperating with a spring storage system (204, 206) containing a compressible medium, where a hydraulic pressure (p.sub.3, p.sub.4) of the piston cylinder unit (202) acts against a pneumatic pressure (p.sub.1, p.sub.2) of the spring storage system. The pneumatic pressures are smaller than the respective hydraulic pressures. In a preferred embodiment, the piston (214) of the piston cylinder unit divides two pressure spaces (228, 230) whose volumes are varied in opposite directions, where the two pressure spaces are hydraulically separated from each other and are each connected to a separate spring storage system (204, 206).

REFERENCES:
patent: 3150867 (1964-09-01), Droegkamp
patent: 3173671 (1965-03-01), Broadwell
patent: 3647239 (1972-03-01), Katsumori
patent: 3741582 (1973-06-01), Eckert
patent: 3847410 (1974-11-01), Keijzer et al.
patent: 4049251 (1977-09-01), Masae
patent: 4478431 (1984-10-01), Muller et al.
patent: 4798398 (1989-01-01), Cummins
patent: 4900056 (1990-02-01), Fukushima et al.

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