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:
Jun. 07, 2011
Filed:
Mar. 23, 2007
Peter Tiesler, Meckenbeuren, DE;
Christoph Margraf, Salem, DE;
Peter Tiesler, Meckenbeuren, DE;
Christoph Margraf, Salem, DE;
ZF Friedrichshafen AG, Friedrichshafen, DE;
Abstract
A device for actuating a disk clutch (B) in a transmission, which consists of an actuating piston-cylinder arrangement with rotation pressure compensation, whose actuating piston () is associated with a pressure chamber () for a pressure medium fluid to produce the actuating force, and in which a pressure compensation chamber () is provided, in which by virtue of centrifugal action a pressure medium fluid produces on the actuating piston a compensation force directed in opposition to the actuation direction of the actuating piston, the pressure chamber and the pressure compensation chamber each having a delivery line () for pressure medium fluid. To simplify the structure of this device and reduce costs, the pressure compensation chamber is arranged completely a radial distance away from the pressure chamber, the pressure compensation chamber is delimited by a disk carrier () of the disk clutch that carries inner disks and by the actuating piston and the pressure compensation chamber is arranged radially above a flow channel () leading through the disk carrier that carries inner disks ().