Car suspension system

Details Car suspension system Car suspension system

1988-10-06

1990-01-02

Butler, Douglas C.

Spring devices

Vehicle

Comprising compressible fluid

267 6427, 267 6428, 267123, 188318, 18832221, 92 48, F16F 904, F16F 943, F16F 500, F01B 1900

Patent

active

048908223

ABSTRACT:
A suspension system according to the present invention comprises a cylinder assembly, which includes a cylinder and a rod fitted therein for axial reciprocation. An oil chamber containing oil and a gas chamber containing gas are defined inside the cylinder assembly. A damping-force generating mechanism is provided in the oil chamber, whereby a damping force is applied to the reciprocation of the rod. A bellows is contained in the cylinder assembly. The bellows includes an oil-resistant body made of an elastomer, and a gas-barrier film made of a material impermeable to gas and formed on the surface of the body. The oil and gas chambers are isolated completely from each other by the bellows.

REFERENCES:
patent: 2186183 (1940-01-01), Trumbull
patent: 2867241 (1959-01-01), Harris
patent: 2948223 (1960-08-01), Mashinter
patent: 3321200 (1967-05-01), Polhemus et al.
patent: 3397621 (1968-08-01), Groves
patent: 4241816 (1980-12-01), Hubrecht et al.
patent: 4311302 (1982-01-01), Heyer et al.
patent: 4614255 (1986-09-01), Morita et al.

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