| 摘要 |
A rotational power converter is composed of a stator fixed to a cylindrical housing and a first rotor and a second rotor rotatably supported in the housing. The first rotor is driven by an internal combustion engine, and electric power is supplied to the stator from a battery, forming a rotating magnetic field in the stator. Rotational power is electromagnetically transferred from the first rotor to the second rotor that is connected to driving wheels of a vehicle. The amount of the rotational power of the second rotor is adjusted by controlling electric current supplied to the stator. The battery either supplies power or receives power according to the amount of the rotational power of the second rotor. Since the electric current is supplied only to the stator fixed in the housing, no electric feeder having slip-rings and brushes is necessary. Accordingly, the rotational power converter is made small in size and its reliability is improved.
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