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:
May. 03, 2022
Filed:
Jul. 13, 2020
Applicant:
Audi Ag, Ingolstadt, DE;
Inventors:
Martin Floß, Ingolstadt, DE;
Peter Maischak, Hepberg, DE;
Michael Schwarzer, Munich, DE;
Albert Scharlach, Oberdolling, DE;
Philipp Uhlmann, Ingolstadt, DE;
Assignee:
AUDI AG, Ingolstadt, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02K 9/28 (2006.01); H02K 13/00 (2006.01);
U.S. Cl.
CPC ...
H02K 9/28 (2013.01); H02K 13/003 (2013.01);
Abstract
An electric machine, including a stator and a rotor shaft having a cooling device, which shaft carries at least one slip ring, which has a lateral surface, which electrically contacts a contact element fixed on the stator, and which is at least partially accommodated in a recess of the rotor shaft, wherein an extension section of the slip ring, which is at least partially accommodated in the recess, extends beyond the lateral surface in one or both axial directions of the rotor shaft.