Electrical generator or motor structure – Dynamoelectric – Rotary
Reexamination Certificate
2006-09-05
2006-09-05
Le, Dang (Department: 2834)
Electrical generator or motor structure
Dynamoelectric
Rotary
C310S193000
Reexamination Certificate
active
07102263
ABSTRACT:
A number of embodiments of rotating electrical machines using permanent magnets wherein the cogging torque is substantially reduced as are vibrations caused by magnetic flux variations. This is accomplished by disposing the coil windings in equal circumferential spacing and disposing the associated permanent magnets in non-symmetrical relationship so that the gaps between some of the magnets are different. In addition, the coil windings are such that no two coils of any phase are immediately adjacent each other in a circumferential direction. A method for calculating the optimum spacing is also disclosed.
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Ando Susumu
Takahashi Hideaki
Takano Tadashi
Beutler Ernest A.
Kabushiki Kaisha Moric
Le Dang
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