Integrated cooling concept for magnetically geared machine
AssigneeGeneral Electric Company
InventorsJan Erich Hemmelmann, Michal Wolfgang Waszak
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Abstract
A magnetically geared machine having an integrated cooling concept is provided. The machine includes a rotor having an inner surface and an outer surface, a magnet assembly coupled to one of the inner or outer surfaces of the rotor, and a stator having a plurality of stator windings. The machine further includes a magnetic flux modulator interposed between the rotor and the plurality of stator windings, where the flux modulator includes a plurality of magnetically conductive portions and a plurality of non-magnetically conductive portions placed alternately, where one or more of the plurality of non-magnetically conductive portions comprise a channel for a cooling fluid.
Claims25
A magnetically geared machine having an integrated cooling concept, the machine comprising:
- a rotor having an inner surface and an outer surface;
- a magnet assembly coupled to one of the inner or outer surfaces of the rotor;
- a stator having a plurality of stator windings;
- and
- a magnetic flux modulator interposed between the rotor and the plurality of stator windings, wherein the flux modulator comprises a plurality of magnetically conductive portions and a plurality of non-magnetically conductive portions placed alternately, and wherein one or more of the plurality of non-magnetically conductive portions comprise a channel for a cooling fluid.
A magnetically geared machine having an integrated cooling concept, the machine comprising:
- a moveable rotor having a first magnetic field associated therewith;
- a magnet assembly coupled to the moveable rotor;
- a stator having a plurality of stationary stator windings;
- a magnetic flux modulator interposed between the moveable rotor and the plurality of stator windings, wherein the flux modulator is configured to provide a plurality of passageways proximate to a plurality of magnetically conductive portions of the flux modulator, and wherein at least one of the plurality of passageways comprises a cooling fluid.
A generator system, comprising:
- a generator coupled to a turbine;
- and
- a tower connected to the generator, the generator further comprising:
- a permanent magnet rotor coupled to the turbine, the rotor having a first magnetic field associated therewith;
- a stator configured with a plurality of stationary stator windings therein;
- and
- a magnetic flux modulator interposed between the moveable rotor and the stator windings, wherein the flux modulator comprises a plurality of magnetically conductive portions and a plurality of non-magnetically conductive portions placed alternately, wherein one or more of the plurality of non-magnetically conductive portions comprise a channel for a cooling fluid.
A propulsion system, comprising:
- a propulsion motor configured to rotate a shaft;
- the propulsion motor comprising:
- a permanent magnet rotor coupled to the shaft, the rotor having a first magnetic field associated therewith;
- a stator configured with a plurality of stationary stator windings therein;
- and
- a magnetic flux modulator interposed between the moveable rotor and the stator windings, wherein the flux modulator comprises a plurality of magnetically conductive portions and a plurality of non-magnetically conductive portions placed alternately, wherein one or more of the plurality of non-magnetically conductive portions comprise a channel for a cooling fluid;
- a propeller coupled to the shaft.
Dependencies are inferred from the claim text.