Patent ID: 7884518
Filing Date: 2011-02-08
Classification: H02K

Abstract:
1. An electrical synchronous machine comprising a stator which has an electrical winding arrangement for generating a rotating field, and comprising a rotor which has magnetic flux generating means for generating a rotor flux with which the rotating field interacts, wherein the rotor has a first rotor section with first magnetic flux generating means and a second rotor section with magnetic flux influencing means, it being possible to move the two rotor sections relative to one another between at least a first and a second relative position in such a way that the rotor flux provided by the rotor has a different magnitude in the two relative positions, wherein identical magnet poles of the first and, respectively, of the second rotor section are situated opposite one another in one of the two relative positions, a mechanical end stop which is designed for this relative position being arranged offset through a small angle, so that the identical magnet poles are not situated exactly opposite one another and the magnetic repulsion forces push one rotor section against the end stop.