Cryogenic equipment for very low temperatures

Details Cryogenic equipment for very low temperatures Cryogenic equipment for very low temperatures

1979-03-14

1980-11-25

King, Lloyd L.

Refrigeration

Gas compression, heat regeneration and expansion, e.g.,...

F25B 900

Patent

active

042350786

ABSTRACT:
A closed cycle gas cooling apparatus capable of producing very low temperatures (lower than 100.degree. K.) is provided. The apparatus utilizes a combined cycle with the gas expanding and working against a piston, as well as expansion by means of an evacuating compressor system. The expanding gas can be used to act on the piston motor shaft, so that the work effected by the gas during expansion accelerates the motor which operates as a brake, accumulating energy for a subsequent phase in which the piston lowers again.

REFERENCES:
patent: 3119237 (1964-01-01), Gifford
patent: 3188818 (1965-06-01), Hogan
patent: 3367121 (1968-02-01), Webb
patent: 3640082 (1972-02-01), Dehne
patent: 4092833 (1978-06-01), Durenec

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