Cryogenic cooling apparatus

Details Cryogenic cooling apparatus Cryogenic cooling apparatus

1982-11-02

1984-02-21

Capossela, Ronald C.

Refrigeration

Refrigeration producer

Evaporator, e.g., heat exchanger

F25B 1900

Patent

active

044322160

ABSTRACT:
A split type cryogenic cooling apparatus comprising a refrigerator which permits a working gas of a high pressure and an operating temperature to generate cold heat, a cryostat accommodating a vessel containing liquefied fraction of the working gas together with an object to be cooled and a plurality of shield plates surrounding the vessel and maintained at respective temperature levels, and a communicating pipe system providing a communication between the refrigerator and the cryostat and having a vacuum heat insulation. Two or more stages of heat exchangers are disposed in the cryostat with their colder ends held in thermal contact with the shield plates and the vessel of temperature levels corresponding thereto, to thereby suppress an introduction of external heat into the cryostat.

REFERENCES:
patent: 3646775 (1972-03-01), Bonnerot et al.
patent: 3882687 (1975-05-01), Asetalos et al.
patent: 4077231 (1978-03-01), Wiebe
patent: 4223540 (1980-09-01), Longsworth
patent: 4277949 (1981-07-01), Longsworth
patent: 4279127 (1981-07-01), Longsworth

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