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:
Dec. 10, 2019
Filed:
Jun. 09, 2016
Bayerische Motoren Werke Aktiengesellschaft, Munich, DE;
Joachim Tachtler, Ismaning, DE;
Dieter Ziegltrum, Vaterstetten, DE;
Bayerische Motoren Werke Aktiengesellschaft, Munich, DE;
Abstract
An electric machine is provided having at least one first permanent magnet, at least one second permanent magnet, a first region, the temperature of which is in a first temperature range during operation, and a second region, the temperature of which is in a second temperature range during operation. The at least one second permanent magnet has a higher maximum working temperature than the first permanent magnet, wherein the maximum working temperature is below the temperature at which the magnetic field strength of the permanent magnet irreversibly decreases in dependence on temperature and because of a magnetic field applied externally to the permanent magnet from. The first permanent magnet is arranged in the first region and the second permanent magnet is arranged in the second region.