Patent ID: 6700268
Filing Date: 2004-03-02
Classification: B60K,B60L,B60W,H02K,Y02T,Y10S

Abstract:
A rotational electric machine comprising:a stator having windings; and a split rotor rotatably disposed on an inner circumferential side of said stator and separated from said stator through an air gap, said split rotor being axially divided into two rotor portions, each having different-polarity field magnets disposed alternately in a rotations direction; one of said rotor portions including a changing mechanism for changing an axial position of said one rotor portion relative to an axial position of the other rotor portion in accordance with a magnetic action force produced between said field magnets of said two rotor portions and a direction torque induced on said split rotor; said one rotor portion being supported from axially opposite sides by a support mechanism.