Electricity: magnetically operated switches – magnets – and electr – Magnets and electromagnets – Superconductive type
Patent
1996-08-23
1998-06-30
Gellner, Michael L.
Electricity: magnetically operated switches, magnets, and electr
Magnets and electromagnets
Superconductive type
310 52, 310 54, 310261, 505877, 505878, 505879, H02K 5500, H02K 900, H01F 700
Patent
active
057740321
ABSTRACT:
A superconducting device, such as a superconducting rotor for a generator or motor. A vacuum enclosure has an interior wall surrounding a cavity containing a vacuum. A superconductive coil is placed in the cavity. A generally-annularly-arranged, thermally-conductive sheet has an inward-facing surface contacting generally the entire outward-facing surface of the superconductive coil. A generally-annularly-arranged coolant tube contains a cryogenic fluid and contacts a generally-circumferential portion of the outward-facing surface of the sheet. A generally-annularly-arranged, thermally-insulative coil overwrap generally circumferentially surrounds the sheet. The coolant tube and the inward-facing surface of the coil overwrap together contact generally the entire outward-facing surface of the sheet.
REFERENCES:
patent: 3343111 (1967-09-01), Kafka
patent: 4682134 (1987-07-01), Laskaris
patent: 5325080 (1994-06-01), Chandratilleke et al.
patent: 5381122 (1995-01-01), Laskaris et al.
patent: 5404122 (1995-04-01), Maeda et al.
patent: 5532663 (1996-07-01), Herd et al.
U.S. Patent Application Serial No. 08/267,625, filed Jun. 29, 1994, by Laskaris et al., entitled "Superconducting Rotor for an Electrical Machine". (To issue as U.S. Pat. 5,548,168 on Aug. 20, 1996).
U.S. Patent Application Serial No. 08/402,438, filed Mar. 13, 1995, by Herd et al., entitled "Superconducting Field Winding Assemblage For An Electrical Machine".
Herd Kenneth Gordon
Laskaris Evangelos Trifon
Barrera Raymond
Erickson Douglas E.
Gellner Michael L.
General Electric Company
Snyder Marvin
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