Dynamo-electric machine
AssigneeRaytheon Company
InventorStephen B. Kuznetsov
Life of this patent
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Abstract
An example system includes a dynamo-electric machine. The dynamo-electric machine includes a rotor that is cylindrical and that is configured for rotation and a stator that is arranged relative to the rotor. The stator has a stepped configuration that defines a first diameter for the stator and a second diameter for the stator. The first diameter is greater than the second diameter. Zones of the stator at the first diameter hold direct-axis (D-axis) windings and zones of the stator at the second diameter hold quadrature axis (Q-axis) windings. An airgap between the rotor and the Q-axis windings is greater than an airgap between the rotor and the D-axis windings.
Claims28
A system comprising a dynamo-electric machine, the dynamo-electric machine comprising:
- a rotor that is cylindrical and that is configured for rotation;
- and
- a stator that is arranged relative to the rotor, the stator having a stepped configuration that defines a first bore diameter for the stator and a second bore diameter for the stator, the first bore diameter being lesser than the second bore diameter, where zones of the stator at the first bore diameter hold direct-axis (D-axis) windings and where zones of the stator at the second bore diameter hold quadrature axis (Q-axis) windings, and where an airgap between the rotor and the Q-axis windings is greater than an airgap between the rotor and the D-axis windings, wherein the stator comprises neutralizing windings between or among sets of the D-axis windings and the Q-axis windings, the neutralizing windings being configured to change an airgap radial flux between adjacent D-axis windings and Q-axis windings.
Dependencies are inferred from the claim text.