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:
Nov. 22, 2011
Filed:
Jul. 26, 2007
Dietmar Stoiber, Fürth, DE;
Bernd Wedel, Nürnberg, DE;
Dietmar Stoiber, Fürth, DE;
Bernd Wedel, Nürnberg, DE;
Siemens Aktiengesellschaft, München, DE;
Abstract
The invention relates to a synchronous motor () with a number of stator coils (), with a rotor () with at least one permanent magnet (), which induces a rotor magnetic field in a useful flux direction and with at least one coil winding (), which is fitted on the rotor in order to induce a resultant magnetic field as a result of an alternating magnetic fields which is applied with the aid of the stator coils, in the direction of a winding axis of the coil winding, so that a resultant inductance of the stator coils () with respect to a direction of the winding axis is different given different positions of the rotor ().