Self-regulating cryostat

Details Self-regulating cryostat Self-regulating cryostat

1975-08-28

1977-01-11

Wayner, William E.

Refrigeration

Automatic control

Refrigeration producer

62514JT, 236102, F25B 1900

Patent

active

040020398

ABSTRACT:
In a cryogenic cooler, wherein a fluid under pressure is transmitted through an expansion orifice in a nozzle into an expansion chamber at a rate which is controlled by the movement of a needle valve in the expansion chamber, an expander member extends from the nozzle and carries the needle valve. The expander member expands and contracts in response to the temperature in the expansion chamber at a different rate than the needle valve to automatically regulate the flow of fluid into the expansion chamber.

REFERENCES:
patent: 2786713 (1957-03-01), Donaldson
patent: 2979952 (1961-04-01), Eastman
patent: 3320755 (1967-05-01), Jepsen et al.
patent: 3719322 (1973-03-01), Gifford
patent: 3818720 (1974-06-01), Campbell

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