Hydropneumatic oleopneumatic vehicle suspension element

Details Hydropneumatic oleopneumatic vehicle suspension element Hydropneumatic oleopneumatic vehicle suspension element

1984-12-12

1986-12-16

Reger, Duane A.

Spring devices

Vehicle

Comprising compressible fluid

188274, 165 47, 280705, F16F 908

Patent

active

046291695

ABSTRACT:
An oleopneumatic vehicle suspension element in particular for a heavy vehicle, comprising a piston (29) movable in a cylinder (28), a gas accumulator (26), a shock absorber (36) immersed in oil (37) filling the volume between the piston (29) and a diaphragm (27). According to the invention, the suspension element comprises a caloduct (50) connecting the shock absorber (36) to a cold source formed by a free surface (42) of the housing (33) of the suspension element (25), the caloduct (50) containing a fluid which evaporates in contact with the shock absorber (36) heated by the oil, then travels to the cold source (42) where it is condensed and returns thereafter to the shock absorber (36) where it again evaporates. This cooling device enables the temperature of the oil to be limited to the maximum acceptable value and maintains the ground clearance of the vehicle constant.

REFERENCES:
patent: 2949315 (1960-08-01), Taylor
patent: 3088726 (1963-05-01), Dangauthier
patent: 3602470 (1971-08-01), Reynolds
patent: 3660784 (1972-05-01), Scharfman
patent: 3795291 (1974-03-01), Naito et al.
patent: 4061320 (1977-12-01), Warner
patent: 4113279 (1978-09-01), Hausenblaus et al.
patent: 4156536 (1979-05-01), Brandstater

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