Air conditioner

An air conditioner includes a main refrigerant circuit where refrigerant flows in order of a compressor, outdoor heat exchanger, expansion valve, and indoor heat exchanger. An injection circuit is configured such that the refrigerant diverges between the outdoor heat exchanger and indoor heat exchan...

Ausführliche Beschreibung

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Bibliographische Detailangaben
1. Verfasser:	HISASHI, TAKEICHI
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	BLASTING COMBINED HEATING AND REFRIGERATION SYSTEMS HEAT PUMP SYSTEMS HEATING LIGHTING LIQUEFACTION SOLIDIFICATION OF GASES MANUFACTURE OR STORAGE OF ICE MECHANICAL ENGINEERING REFRIGERATION MACHINES, PLANTS OR SYSTEMS REFRIGERATION OR COOLING WEAPONS
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Beschreibung
Zusammenfassung:	An air conditioner includes a main refrigerant circuit where refrigerant flows in order of a compressor, outdoor heat exchanger, expansion valve, and indoor heat exchanger. An injection circuit is configured such that the refrigerant diverges between the outdoor heat exchanger and indoor heat exchanger in the main refrigerant circuit and returns to the compressor having a pressure between a suction pressure of compressor and a discharge pressure of compressor. The injection circuit includes an injection decompression valve reducing a pressure of the refrigerant, a control unit cooling portion cooling a control unit to control the compressor using the refrigerant, and a sub-cooler evaporation portion provided at a downstream side of the injection decompression valve such that heat exchange of the refrigerant is performed in the sub-cooler evaporation portion, and the control unit cooling portion is provided between the injection decompression valve and the sub-cooler evaporation portion in the injection circuit.