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:
Sep. 06, 1994
Filed:
May. 27, 1992
Walter Runkel, Wuppertal, DE;
Hemscheidt Fahrwerktechnik GmbH & Co. KG, Wuppertal, DE;
Abstract
The present invention pertains to a suspension system, in particular, for wheel support of motor vehicles with at least one shock absorber leg consisting of a cylinder and a piston moving in this cylinder for contraction and extension, and actuated by a hydraulic medium, in particular, an oil. Preferably the suspension system is of the hydropneumatic design, whereby the hydraulic medium flows back and forth upon retraction and extension via a hydraulic connection between the shock absorber leg and at least one hydropneumatic shock absorber reservoir containing a compressible medium so that the reservoir generates a hydraulic pressure by compression of the compressible medium that causes a spring force in the shock absorber leg due to the pressure applied to the piston. During the extension of the shock absorber leg the connection between the cylinder chamber and the reservoir will be alternately blocked and opened via pressure differentials from the cylinder chamber and reservoir controlled by a damping valve.