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:
Jun. 01, 2004
Filed:
Nov. 08, 2001
Feng Liang, Canton, MI (US);
Mikhail Avramovich Avanesov, Dearborn, MI (US);
Xingyi Xu, Canton, MI (US);
Ballard Power Systems Corporation, Dearborn, MI (US);
Abstract
An electric machine in accordance with the invention includes a stator core having first and second ends and having windings therein with end turns of the windings protruding from the first and second ends of the stator core. A rotor is rotatably positioned within the stator core. A thermal conductor, such as non-laminated aluminum or aluminum alloy ring, is disposed between each stator core end-turn and the housing for conducting heat from the stator core end-turns to the housing, and the cavity between each end-turn and the thermal conductor is filled with a flexible potting material to minimize gap formation caused, for example, by thermal cycling of the engine components.