The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 16, 1986
Filed:
Dec. 12, 1984
Alain Arnaud, Chatenay Malabry, FR;
Thierry Bouiges, Paris, FR;
S.A.M.M. - Societe d'Applications des Machines Motrices, Issy Les Moulineaux, FR;
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.