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:
Mar. 26, 2013
Filed:
Nov. 29, 2006
Dieter Kraxner, Vaihingen an der Enz, DE;
Peter Höbel, Neuhausen, DE;
Markus Rettenmaier, Stuttgart, DE;
Jens Patzner, Potsdam, DE;
Dieter Kraxner, Vaihingen an der Enz, DE;
Peter Höbel, Neuhausen, DE;
Markus Rettenmaier, Stuttgart, DE;
Jens Patzner, Potsdam, DE;
ZF Friedrichshafen AG, Friedrichshafen, DE;
Dr. Ing. h.c.F. Porsche AG, Stuttgart, DE;
Abstract
A device for sealing a double clutch transmission of a motor vehicle, with a transmission housing, in which are arranged a clutch chamber with clutch oil and a double clutch, a transmission chamber with transmission oil and a double clutch transmission wheel set and two co-axial drive shafts disposed, one inside the other. One drive shaft is an interior central shaft which extends inside the transmission chamber from the end of the second hollow drive shaft. The two drive shafts each have a sealing element to seal the clutch chamber from the transmission chamber. A mounting component is situated inside and fixed to the transmission housing to support two adjacent sealing elements. A first sealing element forms a seal radially on the hollow drive shaft and a second sealing element forms a seal radially on the central drive shaft to provide a reliable seal and offer a simple ventilation and leakage detection.