Spring devices – Vehicle – Comprising compressible fluid
Patent
1983-09-12
1985-11-12
Garrett, Robert E.
Spring devices
Vehicle
Comprising compressible fluid
267124, 188264B, 92156, 92159, 92160, 92183, F16F 936
Patent
active
045523444
ABSTRACT:
A hydropneumatic suspension unit includes a large diameter flanged road arm spindle which is bolted to the vehicle hull; a road arm has one end rotatably mounted on the road arm spindle and another end mounting a road wheel; a barrier fluid sealed piston is reciprocated relative to a road arm bore to seal an in-arm mechanically operated pneumatic spring which has a gas volume trapped by the barrier fluid sealed piston to support the sprung mass of the vehicle; the sealed piston is defined by a pair of spaced seals and an oil chamber which has an oil charge therein pressurized by preload spring on the piston to displace the oil barrier to both lubricate and preload the pair of spaced seals as the piston is dynamically operated to vary gas compression and produce a resultant pressure on the piston to counteract vertical forces on the road wheel.
REFERENCES:
patent: 1579409 (1926-04-01), Smith
patent: 2266691 (1941-12-01), Mercier
patent: 2398910 (1946-04-01), Pontius
patent: 2649344 (1953-08-01), Unger
patent: 2683467 (1954-07-01), Greer
patent: 3216334 (1965-11-01), Bauer
patent: 3230977 (1966-01-01), Mercier
Evans John C.
Ex-Cell-O Corporation
Garrett Robert E.
Meyer Richard S.
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