Electrical generator or motor structure – Dynamoelectric – Rotary
Reexamination Certificate
2005-08-02
2005-08-02
Lam, Thanh (Department: 2834)
Electrical generator or motor structure
Dynamoelectric
Rotary
C310S112000, C310S051000
Reexamination Certificate
active
06924574
ABSTRACT:
The present invention provides a novel dual-rotor, radial-flux, toroidally-wound, permanent-magnet machine. The present invention improves electrical machine torque density and efficiency. At least one concentric surface-mounted permanent magnet dual-rotor is located inside and outside of a torus-shaped stator with back-to-back windings, respectively. The machine substantially improves machine efficiency by reducing the end windings and boosts the torque density by at least doubling the air gap and optimizing the machine aspect ratio.
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Lipo Thomas A.
Qu Ronghai
Godfrey & Kahn S.C.
Wisconsin Alumni Research Foundation
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