Refrigeration – Automatic control – Of closed system sorbent type
Patent
1998-05-06
1999-10-19
Doerrler, William
Refrigeration
Automatic control
Of closed system sorbent type
62186, 62154, 62408, F25B 1500, F25D 1702
Patent
active
059669519
ABSTRACT:
A refrigerator cabinet operated by an absorption refrigerating apparatus has a freezing compartment cooled by an upper part of an evaporator of the apparatus and a refrigerating compartment that is cooled by a lower part of the evaporator. The temperature in the refrigerating compartment is kept at a set value by activating or shutting off the refrigerating apparatus. The upper part of the evaporator is provided with a thermally conductive plate for cooling the freezing compartment. The temperature in the freezing compartment is kept at a set value by heat transfer to the plate. For example, a variable speed fan in the freezing compartment moves the air through a duct and past the plate. A film heater on the plate is used for defrosting and for controlling temperature in the freezing compartment.
REFERENCES:
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patent: 3382683 (1968-05-01), Wiljanen
patent: 3793847 (1974-02-01), Scarlett et al.
patent: 4764193 (1988-08-01), Clawson
patent: 5159972 (1992-11-01), Gunnerson et al.
patent: 5255530 (1993-10-01), Janke
patent: 5269152 (1993-12-01), Park
patent: 5355686 (1994-10-01), Weiss
patent: 5471849 (1995-12-01), Bessler
Hallin Ingemar
Levin Per
Nyqvist Mattias
AB Electrolux
Doerrler William
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