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. 17, 2013
Filed:
Apr. 17, 2009
Jörg Sudau, Niederwerrn, DE;
Rüdiger Lotze, Schweinfurt, DE;
Arthur Schröder, Hambach, DE;
Angelika Ebert, Schonungen, DE;
Michael Kneuer, Uechtelhausen, DE;
Gregor Sueck, Sennfeld, DE;
Jörg Sudau, Niederwerrn, DE;
Rüdiger Lotze, Schweinfurt, DE;
Arthur Schröder, Hambach, DE;
Angelika Ebert, Schonungen, DE;
Michael Kneuer, Uechtelhausen, DE;
Gregor Sueck, Sennfeld, DE;
ZF Friedrichshafen AG, Friedrichshafen, DE;
Abstract
A clutch arrangement includes a housing filled with fluid, a first friction surface formation rotatable with the housing around an axis of rotation, a second friction surface formation rotatable with a driven element around the axis of rotation, a pressing element rotatable with the housing around the axis of rotation and which divides an interior space of the housing into a first spatial area and a second spatial area. Depending on fluid pressure in the first and fluid pressure in the second spatial areas, the pressing element is movable with respect to the housing for producing and canceling a frictional engagement between the and the second friction surface formations. A fluid supply system for the first spatial area and/or the second spatial area includes at least a first fluid flow path. The fluid can be supplied to the associated spatial area via at least one fluid flow path and fluid can be removed from the associated spatial area via at least one fluid flow path.