Absorption refrigerator with automatic defrosting
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United States of America Patent
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Oct 19, 1999
Grant Date -
N/A
app pub date -
May 6, 1998
filing date -
Jun 24, 1997
priority date (Note) -
Expired
status (Latency Note)
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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.
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