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:
Oct. 25, 2011
Filed:
Mar. 26, 2008
Peter Frey, Gerolzhofen, DE;
Roland Baumann, Dittelbrunn, DE;
Michael Greulich, Schwebheim, DE;
Georg Mencher, Grafenrheinfeld, DE;
Bernd Reinhardt, Schonungen/Forst, DE;
Peter Hammer, Schweinfurt, DE;
Patrick Rediger, Schweinfurt, DE;
Peter Frey, Gerolzhofen, DE;
Roland Baumann, Dittelbrunn, DE;
Michael Greulich, Schwebheim, DE;
Georg Mencher, Grafenrheinfeld, DE;
Bernd Reinhardt, Schonungen/Forst, DE;
Peter Hammer, Schweinfurt, DE;
Patrick Rediger, Schweinfurt, DE;
ZF Friedrichshafen AG, Friedrichshafen, DE;
Abstract
A hydrodynamic clutch includes a hydrodynamic circuit formed by at least a pump wheel and a turbine wheel in a clutch housing with a drive-side housing wall extending to the axis of rotation, and a bridging clutch with a piston capable of shifting axially relative to the drive-side housing wall. The turbine wheel is connected to a hub, which is connected for rotation in common to a takeoff, and is axially supported between the hydrodynamic circuit and the clutch housing, and has first and second flow passages which are axially offset from each other. The hub has a drive-side end with an axial bearing area which can be moved into axial contact with an axial bearing, which is either an axial contact surface on the drive-side housing wall or is assigned to the drive-side housing wall.