Apparatus for self-sufficiently cooling high temperature superco

Details Apparatus for self-sufficiently cooling high temperature superco Apparatus for self-sufficiently cooling high temperature superco

1994-09-22

1997-04-01

Kilner, Christopher

Refrigeration

Storage of solidified or liquified gas

Including cryostat

62 542, 62 543, 62430, F25B 1900

Patent

active

056155573

ABSTRACT:
A cooling apparatus especially for cooling high-temperature-superconducting lectronic components includes a cold gas cooling machine, such as a Stirling machine, thermally connected to a pressure vessel serving as a cold reservoir vessel. The pressure vessel contains a working medium having a triple point in the temperature range from about 60K to about 90K and a critical temperature at least as high as the maximum operating room temperature of the apparatus. The working medium is propane, for example. A cooling surface of the electronic component is thermally connected to the pressure vessel. In the method of operating the apparatus, the electronic component does not require continuous cooling. During a charging or refrigerating phase, the cooling machine freezes the working medium. Then during a useful cooling phase, the cooling machine is switched off and the electronic component is operated while being cooled by the frozen working medium.

REFERENCES:
patent: 1680873 (1928-08-01), Lucas-Girardville
patent: 3545226 (1970-12-01), Newell
patent: 3702932 (1972-11-01), Tanner et al.
patent: 3745785 (1973-07-01), Crawford et al.
patent: 4658601 (1987-04-01), Burchell et al.
patent: 4756164 (1988-07-01), James et al.
patent: 4821907 (1989-04-01), Castles et al.
patent: 5477693 (1995-12-01), Morita

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