Continuous flow cryogen sublimation cooler

Details Continuous flow cryogen sublimation cooler Continuous flow cryogen sublimation cooler

1993-08-19

1995-01-31

Capossela, Ronald C.

Refrigeration

Storage of solidified or liquified gas

Including cryostat

F25B 1900

Patent

active

053850270

ABSTRACT:
A device for cryogenic refrigerating of an object below the triple point temperature of the cryogen. The device includes a housing in which is placed a porous plug. A liquid cryogen is supplied to one side of the plug at a pressure greater than the triple point of the cryogen. A pressure below the triple point is maintained on the other side of the porous plug. The cryogen flows through the plug and forms a solid on the supply side of the plug. The solid cryogen provides cooling by sublimation on a continuous basis to a cold station thermally coupled to the plug.

REFERENCES:
patent: 3447333 (1969-06-01), Goodstein
patent: 4228662 (1980-10-01), Klipping
patent: 4474036 (1984-10-01), Ball et al.
patent: 4480682 (1984-11-01), Kaneta et al.
patent: 4538423 (1985-09-01), Le Diouron
Nast, T. C. "Status of Solid Cyrogen Coolers" Advances in Cryogenic Engineering vol. 31, 1985, pp. 835-849.
Caren, R. P. et al. "A Solid Cryogen Refrigerator for 50.degree. K Infrared Detector Cooling" Advances in Cryogenic Engineering, vol. 13, pp. 451-461.

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