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US 7,154,193 B2Granted
Electrical machine with double-sided stator
AssigneeGeneral Electric Company
InventorsPatrick Lee Jansen, James Patrick Lyons, Ralph James Carl, Jr., Ronghai Qu, James Michael Fogarty
Life of this patent
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Abstract
Machines useful for wind turbine and ship propulsion purposes include a wind turbine generator or a ship propulsion motor with two concentric air gaps. In one embodiment, the machine includes a rotor with an inner rotor core and an outer rotor core; and a double-sided stator with an inner stator side and an outer stator side. The double-sided stator is concentrically disposed between the inner rotor core and the outer rotor core.
Claims12
A wind turbine generator comprising:
- at least one rotor with an inner rotor core comprising at least one first permanent magnet and an outer rotor core comprising at least one second permanent magnet;
- and
- at least one double-sided stator with an inner stator side comprising an inner stator winding and an outer stator side comprising an outer stator winding,
- wherein the at least one double-sided stator is concentrically disposed between the inner rotor core and the outer rotor core of the wind turbine generator, wherein the inner stator side and the outer stator side contribute to at least two concentric air gaps;
- and wherein the at least one rotor and at least one double-sided stator cooperate to produce at least 2.0 megawatts of power.
2 more elements
A wind turbine comprising:
- a wind turbine generator comprising:
- at least one rotor with an inner rotor core comprising at least one first permanent magnet and an outer rotor core comprising at least one second permanent magnet, and
- at least one double-sided stator with an inner stator side comprising an inner stator winding and an outer stator side comprising an outer stator winding, wherein the at least one double-sided stator is concentrically disposed between the inner rotor core and the outer rotor core, wherein the inner stator side and the outer stator side contribute to at least two concentric air gaps and wherein the wind turbine generator produces at least 2.0 megawatts of power.
Dependencies are inferred from the claim text.