GAS EXTRACTION DEVICE AND GAS EXTRACTION METHOD FOR REFRIGERATOR
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United States of America Patent
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Issued Date -
Feb 7, 2013
app pub date -
Mar 6, 2012
filing date -
Apr 11, 2011
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A gas extraction device installed in a refrigerator removes uncondensed gases that exist in the refrigerator. The gas extraction device includes a gas extraction tank used to circulate a refrigerant put in an evaporator, a circulation pipe for circulation between the gas extraction tank and the evaporator, a gas extraction pump which feeds the refrigerant in the evaporator to the gas extraction tank, a shutoff valve configured to shut off a flow of the refrigerant from the gas extraction tank to the evaporator, a gas extractor which extracts the uncondensed gas in the refrigerator into the gas extraction tank, and an auxiliary tank which receives an inflow of the refrigerant filling up the gas extraction tank, and overflowing therefrom.
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