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. 19, 2010
Filed:
Jun. 08, 2006
Andreas Jöckel, Nuremberg, DE;
Andreas Jöckel, Nuremberg, DE;
Siemens Aktiengesellschaft, München, DE;
Abstract
The invention relates to an electric motor () with permanent magnet excitation, comprising a stator (), a rotor (), comprising a hollow shaft () on which the permanent magnets () are positioned. The hollow shaft () is sealed tight against an output shaft () at least at the end faces thereof and a suitable coolant is provided in the enclosed cavity () which, during operation of the electric motor, evaporates from the relatively hot hollow shaft in the region of the permanent magnets () and condenses in the region of the relatively cold output shaft () such as to introduce a radial and axial heat transport.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile