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US 4,908,347 AGranted
Dynamoelectric machine with diamagnetic flux shield
AssigneeAllied-Signal Inc.
InventorJoseph Denk
Life of this patent
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Abstract
An AC electrical machine which includes a superconducting, diamagentic flux shield cylinder enclosing the stator windings such that the magnetic flux produced by the machine's rotor is bottled within the flux shield.
Claims14
A stator for a dynamoelectric machine comprising:
- a plurality of stator windings;
- winding support means of non-magnetic material for supporting and separating said plurality of stator windings;
- a cylindrical flux shield of diamagnetic material mounted around the outer periphery of said winding support means and said stator windings to contain a magnetic field internally to said flux shield.
A dynamoelectric machine comprising:
- a rotor means for producing a high strength magnetic field;
- at least one stator winding disposed about said rotor means;
- means for supporting said stator winding, said means for supporting formed of non-magnetic material;
- a substantially cylindrical flux shield means of superconducting diamagnetic materials, mounted around said stator winding and said means for supporting, for containing the magnetic field produced by said rotor means internally to said flux shield means;
- a housing for containing said rotor means, said stator winding, said means for supporting, and said flux shield means;
- a winding lead conductor attached to said stator winding and adapted to be connected to an electrical device external to said housing;
- and
- a power coupling shaft connected to said rotor means and adapted to be coupled with a mechanical device external to said housing.
5 more elements
Dependencies are inferred from the claim text.