Freon free refrigerator

Details Freon free refrigerator Freon free refrigerator

1992-07-02

1994-08-23

Wayner, William E.

Refrigeration

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

62112, 62480, F25B 900

Patent

active

053396391

ABSTRACT:
A refrigerator includes a cylinder containing a bed of adsorbent material and a gas, e.g. carbon dioxide. A piston compresses the gas which is adsorbed by the adsorbent material and the heat of adsorption is dissipated by fins to atmosphere. The piston, when retracted, decompresses the gas which desorbs from the adsorbent material. Repeated compression and decompression of the gas causes a cold zone to be created within the material which is thermally linked to a location to be refrigerated.

REFERENCES:
patent: 3262277 (1966-07-01), Nesbitt
patent: 3817044 (1974-06-01), Daniels
patent: 4183734 (1980-01-01), Leppard
patent: 4413670 (1983-11-01), Ritter
patent: 4489533 (1984-12-01), Wheatley
patent: 4584840 (1986-04-01), Baumann

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