REFRIGERATION CYCLE DEVICE

A refrigerant circuit (20) includes a first compressor (21), a second compressor (22), a heat-source-side heat exchanger (24), an expansion mechanism (26), and a use-side heat exchanger (27). The refrigerant circuit (20) is capable of performing a single-stage compression operation in which one of t...

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Bibliographische Detailangaben
Hauptverfasser:	OKAMOTO, TETSUYA, CHEN, KEBI, HISAYAMA, KAZUSHI
Format:	Patent
Sprache:	eng ; pol
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:	A refrigerant circuit (20) includes a first compressor (21), a second compressor (22), a heat-source-side heat exchanger (24), an expansion mechanism (26), and a use-side heat exchanger (27). The refrigerant circuit (20) is capable of performing a single-stage compression operation in which one of the first compressor (21) and the second compressor (22) is driven and the other is stopped, and a two-stage compression operation in which both the first compressor (21) and the second compressor (22) are driven. The control unit (100) controls the refrigerant circuit (20) so that, of the single-stage compression operation and the two-stage compression operation, an operation with a higher compression efficiency is performed.