Patent ID: 7155804
Filing Date: 2007-01-02
Classification: H02K,Y10T

Abstract:
1. The method of forming an electric motor, comprising the steps of: forming a plurality of arcuate stator segments, each segment having a concave surface, a convex surface, opposite end surfaces, and a plurality of teeth extending inwardly from said concave surface, a adjacent teeth of said plurality extending in opposite direction; providing a separate electrical winding for each segment, each winding having different portions that are arranged adjacent said concave, convex and end surfaces of the associated segment said winding being adapted to be selectively energized to form a three-dimensional magnetic field about said segment; assembling said segments to form an annular stator; and placing a rotor within said stator, said stator having at least two magnetic poles that are arranged to interact with the magnetic field in said stator.