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US07868514B2 Plural rotor permanent magnet electric motor with coincident electromagnetic axis 有权
多转子永磁电动机具有重合的电磁轴

Plural rotor permanent magnet electric motor with coincident electromagnetic axis
Abstract:
An electric motor having a first rotor, a second rotor and a third rotor, a first permanent magnet, a second permanent magnet and a third permanent magnet, a first stator and a second stator, a first electromagnet and a second an electromagnet with one end of the core larger than the other, a shaft, a shaft rotation position sensor and an electric switch.
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