Hydropneumatic suspension system

Details Hydropneumatic suspension system Hydropneumatic suspension system

1978-11-03

1980-07-15

Song, Robert R.

Land vehicles

Wheeled

Running gear

267 65D, 280708, 280714, 280 4323, B60G 1704

Patent

active

042124840

ABSTRACT:
A hydropneumatic suspension system selectively lowers the level of a vehicle body above the ground to afford entry/exit and loading/unloading ease. A normally open solenoid valve is operative to cut supply of fluid under pressure to self-levelling suspension units while a normally closed solenoid valve is operative to communicate inlets of the suspension units to a reservoir by way of relief valves which regulate the fluid pressure in the suspension units.

REFERENCES:
patent: 3558155 (1971-01-01), Jackson
patent: 3632131 (1972-01-01), Engfer
patent: 3884496 (1975-05-01), Ito
patent: 3913938 (1975-10-01), Aikawa
patent: 3953040 (1976-04-01), Unruh

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