Air-conditioning apparatus with low outside air temperature mode

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United States of America Patent

PATENT NO 9863679
SERIAL NO

14380139

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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In the case of a heating operation in which a use side heat exchanger functions as a condenser when the outside air has a predetermined low temperature, a low-outside-air-temperature heating operation start mode is executed in which, while a refrigerant, as discharged from a compressor, flows into the use side heat exchanger, the refrigerant, upon flowing into the injection pipe, merges with a part of the refrigerant discharged from the compressor, which has traveled through the connecting pipe and has transferred heat in the heat source side heat exchanger, and a merged refrigerant is supplied to the injection port of the compressor, and thereafter a low-outside-air-temperature heating operation mode is executed in which the refrigerant, as discharged from the compressor, is supplied to the injection port of the compressor via the injection pipe while flowing into the use side heat exchanger.

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Patent Owner(s)

Patent OwnerAddress
MITSUBISHI ELECTRIC CORPORATION7-3 MARUNOUCHI 2-CHOME CHIYODA-KU TOKYO 100-8310

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Hatomura, Takeshi Tokyo, JP 69 568
Takenaka, Naofumi Tokyo, JP 87 661
Yamashita, Koji Tokyo, JP 287 3138

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