Cryogenically cooled electrical machine

Details Cryogenically cooled electrical machine Cryogenically cooled electrical machine

1977-11-29

1979-11-13

Skudy, R.

Electrical generator or motor structure

Dynamoelectric

Rotary

H02K 900

Patent

active

041744837

ABSTRACT:
A cryogenically cooled electrical machine comprises a superconducting field winding placed inside a hollow rotor surrounded by a cooled magnetic shield and a heat shield. The magnetic shield is arranged within the heat shield and is cooled by a coolant circulating in ducts made in the heat shield, the heat and magnetic shields being arranged within an evacuated space between the rotor and the shell of the electrical machine. This embodiment of the electrical machine makes it possible to increase the efficiency of thermal protection of the superconducting field winding.

REFERENCES:
patent: 3648082 (1972-03-01), MacNab
patent: 3679920 (1972-07-01), MacNab
patent: 4020371 (1977-04-01), Gillet
patent: 4063122 (1977-12-01), Kullman
patent: 4076988 (1978-02-01), Litz
patent: 4085343 (1978-04-01), Hasegawa

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