Refrigeration – Low pressure cold trap process and apparatus
Patent
1980-06-09
1982-05-18
Capossela, Ronald C.
Refrigeration
Low pressure cold trap process and apparatus
62505, 165 89, 310 54, 310 64, F17C 702
Patent
active
043298494
ABSTRACT:
In order to replenish a helium bath in the super-conducting rotor of an electrical machine, in which bath liquid helium boils at subatmospheric pressure, with liquid helium from a helium reservoir, the liquid helium in the reservoir being at ambient pressure and a part of the liquid helium changing to the vapor phase during flow from the reservoir to the bath, liquid helium is introduced into the bath at a distance from the rotor axis of rotation, the liquid and vapor phases of the helium flowing from the reservoir to the bath are separated from one another in a phase separator fixed to the rotor, and the separated vapor phase is extracted from the separator.
REFERENCES:
patent: 3989102 (1976-11-01), Jaster et al.
patent: 4000777 (1977-01-01), Laing
patent: 4048529 (1977-09-01), Pomeroy et al.
patent: 4056745 (1977-11-01), Eckels
patent: 4082967 (1978-04-01), Laskaris
Bejar, A., "Improved Thermal Design of the Cooling System for a Superconding Synchronous Generator", MIT Thesis (Dec. 1974).
Hoffman, A. et al, "Thermodynamics of a Self-Pumping Cooling Cycle for Superconducting Generator Applications", Cryogenics, Jul. 1977, pp. 429-433.
Hofmann Albert
Schnapper Christoph
Capossela Ronald C.
Kernforschungszentrum Karlsruhe Gesellschaft mit beschrankter Ha
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