Electrical generator or motor structure – Dynamoelectric – Rotary
Patent
1997-06-24
1998-09-08
Dougherty, Thomas M.
Electrical generator or motor structure
Dynamoelectric
Rotary
310 80, 310 81, 310268, 310 49R, H02K 706, H02K 3700
Patent
active
058048987
ABSTRACT:
An electric motor is capable of increased output torque by utilizing both electric energy by an electromagnet and a magnetic energy by a permanent magnet. The electric motor includes a wobble rotor made of a magnetic material including at least one permanent magnet arranged annularly in a circumferential direction therein. A plurality of electromagnets are disposed annularly along with the outer periphery of the rotor. Current switching circuitry energizes the electromagnets in a predetermined sequence and timing. The wobble rotor is supported by a supporting mechanism around a center portion thereof in a pivotally movable manner and is capable of closely approaching or contacting an energized electromagnet at the outer periphery thereof and of wobbling movement with a certain incline toward the energized electromagnet according to the predetermined sequence and timing of the energizing of the electromagnets. The rotor includes a first crown gear formed along the outer periphery thereof and a second crown gear disposed along the annularly arranged electromagnets and opposed to and engaged with the first crown gear. The first crown gear has different number of teeth than the second crown gear.
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Dougherty Thomas M.
Nguyen Tran N.
Nihon Riken Co., Ltd.
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