Environmentally robust electromagnets and electric motors employing same for use in nuclear reactors

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United States of America Patent

PATENT NO 9985488
SERIAL NO

13188946

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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An electromagnet comprises a plurality of nested freestanding electrically insulating former layers, and electrically conductive wire wrapped around the outsides of the freestanding electrically insulating former layers to define a multilayer electrical coil in which adjacent layers of the multilayer electrical coil are spaced apart by intervening freestanding electrically insulating former layers. Electrically energizing the multilayer electrical coil generates a magnetic field inside the multilayer electrical coil. In some embodiments the electrically conductive wire is bare wire not having electrical insulation. In some embodiments the former layers comprise a ceramic material. In some such embodiments the electromagnet further comprises a ferromagnetic core disposed inside the multilayer electrical coil. An electric motor employing such an electromagnet as a stator pole is also disclosed. Control rod drive mechanism (CRDM) and coolant pump embodiments are also disclosed employing such a motor, for use in a nuclear reactor.

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Patent Owner(s)

Patent OwnerAddress
BWXT NUCLEAR OPERATIONS GROUP INC2016 MT ATHOS ROAD LYNCHBURG VA 24504

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Emond, Robert W North Ridgeville, US 2 1
Goodyear, Brett T Twinsburg, US 7 14
Yeadon, William H Iron River, US 6 12

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