Non-temperature cycling cryogenic cooler

Details Non-temperature cycling cryogenic cooler Non-temperature cycling cryogenic cooler

1987-12-03

1989-02-07

Capossela, Ronald C.

Refrigeration

Refrigeration producer

Evaporator, e.g., heat exchanger

250352, F25B 1900

Patent

active

048023450

ABSTRACT:
A cryogenic cooler (10) includes a dewar (14) spaced from a cold finger (12). In the space (18) between the dewar and the cold finger, a trace amount of a noncondensable gas, preferably neon, is added to the air to maintain the thermal conductivity between the cold finger and the dewar and thereby to prevent temperature cycling in the cooler.

REFERENCES:
patent: 3258602 (1966-06-01), Promish
patent: 3727058 (1973-04-01), Schrey
patent: 3970850 (1976-07-01), Jordan
patent: 4495988 (1985-01-01), Grossman
patent: 4658601 (1987-04-01), Burchell et al.
patent: 4716742 (1988-01-01), Germain-Lacour et al.

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