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. 04, 2004
Filed:
Sep. 20, 2001
Erhard Derleth, Grosswenkheim, DE;
Klaus Greubel, Bad Neustadt, DE;
Klaus Happel, Wollbach, DE;
Bruno Heim, Grosseibstadt, DE;
Felix Ludwig, Bad Kissingen, DE;
Thomas Niklaus, Roadelmaier, DE;
Jochen Pecher, Heustreu, DE;
Siemens Aktiengesellschaft, München, DE;
Abstract
An electric machine, includes a stator with a laminated stator body having winding end portions potted in a cast, and a rotor for interaction with the stator. In order to cope with the increased heat development in the zone of the winding end portions compared to the zone of the stator body, the cast of the winding end portions is formed with surface-enlarging structures in heat-conducting contact with a cooling jacket or with a cooling medium, and/or the cast is provided at least partially with a heat-conducting envelope which carries off heat.