Electrical generator or motor structure – Dynamoelectric – Rotary
Patent
1987-01-07
1988-05-17
Skudy, R. ?
Electrical generator or motor structure
Dynamoelectric
Rotary
310 64, 310254, H02K 900
Patent
active
047453133
ABSTRACT:
An electric machine stator (6) having superconducting three-phase windings, the stator comprising tubular elements (7, 8) and end plates (9, 10) forming a cryogenic enclosure containing a bath of liquid helium at very low temperature, with the windings being disposed in said bath, an additional tubular element (11) supporting said enclosure at one of its ends and fixed at its other end in sealed manner to an additional end plate (3), annular screens (13, 14) for reflecting radial thermal radiation, and current leads to the windings, the stator including the improvements whereby the tubular elements and the end plates forming the enclosure, the tubular element supporting the enclosure, and the annular screens for reflecting radial thermal radiation are based on a material which does not conduct electricity, and whereby the annular screens for reflecting radial thermal radiation are covered with layers (41, 43) of metal wires of high thermal conductivity, each of which layers has at least one point thereof put into heat conducting connection with a heat exchanger having a chamber (16) through which flows gaseous helium evacuated from the enclosure passing therethrough.
REFERENCES:
patent: 3405290 (1968-10-01), Halas
patent: 3441755 (1969-04-01), Grunwald
patent: 3940643 (1976-02-01), Sika
patent: 4058746 (1977-11-01), Mole
patent: 4058747 (1977-11-01), Mailfert
Brunet Yves
Tixador Pascal
Alsthom
Skudy R. ?
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