High performance refrigerator having sacrificial evaporator
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United States of America Patent
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Apr 12, 2016
Grant Date -
Apr 25, 2013
app pub date -
Oct 16, 2012
filing date -
Oct 19, 2011
priority date (Note) -
In Force
status (Latency Note)
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Abstract
A high performance refrigerator includes a cabinet with a refrigerated interior and a refrigeration fluid circuit having first and second evaporators located within the cabinet and separated from the refrigerated interior by an insulating cover. The refrigerator also includes a first damper controlling flow from the refrigerated interior into the first evaporator, a second damper controlling flow from the first evaporator to the second evaporator, and a third damper controlling flow from the second evaporator to the refrigerated interior. The first evaporator operates with refrigerant at a lower temperature than the second evaporator such that substantially all frost formed on the first and second evaporators is collected on a first evaporator coil in the first evaporator. Thus, the first evaporator acts as a sacrificial evaporator that undergoes defrost more frequently than the second evaporator.
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Family
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