Air-conditioner and method of returning and cooling compressor oil
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United States of America Patent
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Aug 25, 2015
Grant Date -
May 3, 2012
app pub date -
Jan 27, 2009
filing date -
Jan 27, 2009
priority date (Note) -
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Abstract
An air-conditioner capable of suppressing increase in the suction temperature of a compressor is provided. The air-conditioner according to the present invention has a refrigerant circuit in which a compressor, an oil separator, a heat source side heat exchanger, a throttle device, and a use side heat exchanger are connected in series, an oil returning circuit that connects the oil separator with the suction side of the compressor, and a decompression mechanism provided in the oil return circuit. The oil return circuit is installed by piping so as to exchange heat with a part of the heat source side heat exchanger at the upstream side of the decompression mechanism.
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