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. 12, 2010
Filed:
Sep. 29, 2004
Applicant:
Bernd Pfannschmidt, Rosstal, DE;
Inventor:
Bernd Pfannschmidt, Rosstal, DE;
Assignee:
Siemens Aktiengesellschaft, München, DE;
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H02K 1/32 (2006.01); H02K 9/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
The invention relates to a direct electrical drive () for a wheel set () of a vehicle, wherein the direct electrical drive () comprises a stator () and a rotor (), with the rotor () being coupled mechanically with a wheel set shaft (). The rotor () includes a cooling device. The cooling device includes cooling channels (), an air inlet () and at least one fan (), whereby the cooling channels () extend inside the rotor ().