Superconducting rotor for an electrical machine

Details Superconducting rotor for an electrical machine Superconducting rotor for an electrical machine

1994-06-29

1996-08-20

Skudy, R.

Electrical generator or motor structure

Dynamoelectric

Rotary

310 10, 310261, H02K 900

Patent

active

055481680

ABSTRACT:
A superconductive rotor, such as an electric generator rotor, has a cylindrical-shaped solid (e.g., iron) core having a pair of diametrically-opposed and longitudinally-extending slots. A longitudinally-extending, racetrack-shaped superconductive coil surrounds the solid core and has straight portions located in the slots. A longitudinally extending, racetrack-shaped thermal shield generally encloses the superconductive coil and has generally straight portions located in the slots. The thermal shield is generally spaced apart from the superconductive coil and from the solid core. A pair of end shafts are each attached to the solid core and are spaced apart from the thermal shield. One end shaft has a cryogen transfer coupling for cooling the superconductive coil, preferably with gaseous helium.

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