Expansion valve control for enhancing refrigerator efficiency
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United States of America Patent
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Jun 12, 2012
Grant Date -
Dec 24, 2009
app pub date -
Jun 12, 2006
filing date -
Jun 13, 2005
priority date (Note) -
In Force
status (Latency Note)
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Abstract
The present invention concerns a cooling or heating system including at least a compressor, a condenser, an expansion apparatus and a vaporizer. The invention is characterized essentially in that in the condenser or in proximity to an outlet of the condenser and before inlet to the expansion apparatus there is a control apparatus arranged to receive condensate-liquid and an intake to a signal channel, and that there is an arrangement to vaporize condensate liquid in the signal channel. An orifice reduces signal channel flow when this flow enters into the cooling or heating system low-pressure side form the signal channel the amount of liquid that is vaporized in the signal channel affects the expansion apparatus connected to the signal channel and the expansion apparatus opening process.
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