Patent ID: 6412753
Filing Date: 2002-07-02
Classification: F02M,H02K

Abstract:
An EGR valve device comprising:a motor rotating unit having a stator, in which each of a fixed number of coils is arranged in a peripheral direction of a stator core, and a rotor in which each of a plurality of magnets is fitted to an outer peripheral face corresponding to one coil of the stator; a valve drive mechanism for driving a valve linearly according to the rotation of the rotor of the motor rotating unit; a bearing for rotatably supporting the rotor, to which the magnets are fitted, with respect to the stator; and a current carrying device, which is arranged at a position placed on an outer side opposite to a side arranging the magnets on a rotational axis of the rotor with respect to the bearing, for commutating a direct current supplied from a power source according to a position of the rotor and supplying the commutated current to one coil of the stator; wherein the rotor and the current carrying device are rotatable together via a mechanical coupling.