Electrical generator or motor structure – Dynamoelectric – Rotary
Reexamination Certificate
2005-04-05
2005-04-05
Nguyen, Tran (Department: 2834)
Electrical generator or motor structure
Dynamoelectric
Rotary
C310S156560, C310S156570, C310S216006
Reexamination Certificate
active
06876117
ABSTRACT:
A magnetic gap is provided between a permanent magnet of a rotor and an auxiliary magnet pole portion which is arranged adjacent to the permanent magnet in a peripheral direction. A gradual change in a magnetic flux density distribution of a surface of the rotor is obtained and a cogging torque and a torque pulsation are restrained. By obtaining a reluctance torque according to the auxiliary magnetic pole, a permanent magnet electric rotating machine in which the cogging torque and the torque pulsation are restrained can be obtained and further an electromotive vehicle having the permanent magnet electric rotating machine can be provided.
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Kawamata Shouichi
Koizumi Osamu
Matsunobu Yutaka
Oda Keiji
Shibukawa Suetaro
Crowell & Moring LLP
Hitachi Car Engineering Co. Ltd.
Nguyen Tran
LandOfFree
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