Gas suspension systems for vehicles

Details Gas suspension systems for vehicles Gas suspension systems for vehicles

1981-12-29

1984-04-17

Bertsch, Richard A.

Land vehicles

Wheeled

Running gear

280 5R, 280702, 280DIG1, B60G 1128

Patent

active

044430264

ABSTRACT:
A vehicle gas suspension system consists of a suspension unit, a high pressure reservoir, a low pressure reservoir and an electrically driven pump. Control valves are disposed in connection lines between the unit and the reservoirs for respectively controlling the flow of gas to and from the suspension unit so as to maintain the ride height of the vehicle at a suitably adjusted attitude irrespective of vehicle loading. The pump comprises a tubular barrel, a valve at one end of the barrel, and a piston and flexible seal which reciprocate in the barrel reservoirs. A vacuum relief valve in the wall of the low pressure reservoir allows air to be drawn into the reservoir from the atmosphere, and a dump valve opens to allow gas to flow from the high pressure reservoir to the low pressure reservoir when a maximum permitted pressure is reached in the high pressure reservoir.

REFERENCES:
patent: 2862726 (1958-12-01), Bertsch
patent: 2965389 (1960-12-01), Dietrich
patent: 2976053 (1961-03-01), Pribonic et al.
patent: 2989983 (1961-06-01), Valentine
patent: 3059918 (1963-10-01), Pribonic
patent: 4015859 (1977-04-01), Hegel et al.

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