Patent ID: 8018116
Filing Date: 2011-09-13
Classification: H02K

Abstract:
1. A DC motor comprising; a static body assembly comprising permanent magnets; a rotor assembly, wherein said rotor assembly comprises a rotor core and a plurality of coil assemblies, wherein each said coil assembly comprises a coil, a coil base, a coil body and a coil bridge, wherein said coil body is located between said coil bridge and said coil base, wherein said coil body, said coil base and said coil bridge cover said coil and wherein said coil base is attached to said rotor core; a bearing means; a shaft, wherein said rotor assembly is fixed to the shaft by fixing means; a commutation system connected to each said coil assembly, wherein said commutation system wherein said commutation system generates a positive, a zero and a negative magnetic polarity orientation at said coil during portions of an electric cycle; wherein a positive phase comprises the commutation system supplying current in a first direction; a negative phase comprises the commutation system supplying current in a second direction and a neutral phase comprises the commutation system supplying no current; and said commutation system is configured to supply a positive current for a third or less of the electrical cycle, supply a negative current for a third or less of the electrical cycle and supplying no current to said coil assembly during the balance of the electrical cycle.