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:
Jan. 20, 2009
Filed:
May. 18, 2004
Matthias Reisch, Ravensburg, DE;
Maik Würthner, Friedrichshafen, DE;
Axel Heitmann, Ingolstadt, DE;
Stefan Kilian, Friedrichshafen, DE;
Matthias Reisch, Ravensburg, DE;
Maik Würthner, Friedrichshafen, DE;
Axel Heitmann, Ingolstadt, DE;
Stefan Kilian, Friedrichshafen, DE;
ZF Friedrichshafen AG, Friedrichshafen, DE;
Abstract
A seal of an electric machine installed within a motor vehicle drive mechanism with of one of a wet-running oil-cooled disk gearshift element, a multiple disk clutch and a multiple disk brake being accommodated within a free space of a rotor of the electric machine. An oil free annular gap () is formed between the rotor () and the stator () of the electric machine and the annular gap () has a seal () which, at a high rate of rotation by the rotor () and depending on the type of gap seal, seals without touching.