Patent ID: 6166473
Filing Date: 2000-12-26
Classification: H02K

Abstract:
A rotary electric apparatus comprising:a rotary shaft defining an axial direction;a stator disposed around an external periphery of said rotary shaft and having coil assemblies including coils wound around core members extending parallel to said axial direction and equidistantly disposed about said rotary shaft, said core members having opposing first and second stator pole surfaces normal to said axial direction and disposed respectively in opposing first and second sides of said stator;said stator including a support frame rotatably supporting said rotary shaft;a first monopole rotor fixed on said rotary shaft adjacent said first side of said stator, said first monopole rotor having all N-polar magnetic pole surfaces normal to said axial direction, disposed diametrically opposed about said rotary shaft, and alignable opposite said first stator pole surfaces during rotation of said first monopole rotor;a second monopole rotor fixed on said rotary shaft adjacent said second side of said stator, said second monopole rotor having all S-polar magnetic pole surfaces normal to said axial direction, disposed diametrically opposed about said rotary shaft, and alignable opposite said second stator pole surfaces during rotation of said second monopole rotor, said S-polar magnetic pole surfaces being aligned opposing said N-polar magnetic pole surfaces in the axial direction with said stator therebetween; andsaid stator having a number of said core members which is twice a number of each of said S-polar magnetic pole surfaces and said N-polar magnetic pole surfaces.