REFRIGERATING DEVICE

PROBLEM TO BE SOLVED: To obtain high COP regardless of changes in operating conditions, in a refrigerating device including a compressor constituted of a plurality of compression mechanisms mechanically connected by one drive shaft and performing a two-stage compression refrigerating cycle. SOLUTION...

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Bibliographische Detailangaben
Hauptverfasser:	SOTOJIMA RYUZO, SHIBAMOTO YOSHITAKA
Format:	Patent
Sprache:	eng
Schlagworte:	BLASTING COMBINED HEATING AND REFRIGERATION SYSTEMS HEAT PUMP SYSTEMS HEATING LIGHTING LIQUEFACTION SOLIDIFICATION OF GASES MANUFACTURE OR STORAGE OF ICE MECHANICAL ENGINEERING POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC FLUIDS REFRIGERATION MACHINES, PLANTS OR SYSTEMS REFRIGERATION OR COOLING ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENTMACHINES FOR LIQUIDS ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENTPUMPS WEAPONS
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To obtain high COP regardless of changes in operating conditions, in a refrigerating device including a compressor constituted of a plurality of compression mechanisms mechanically connected by one drive shaft and performing a two-stage compression refrigerating cycle. SOLUTION: An air conditioner (1) includes a refrigerant circuit (10) to which the compressor (11) having the three rotary type compression mechanisms (31, 32, 33) mechanically connected by one drive shaft (35) is connected so as to perform the two-stage compression refrigerating cycle. The rotary type compression mechanisms (31, 32, 33) are constituted of a one-cylinder chamber type compression mechanism and two-cylinder chamber type compression mechanisms. The air conditioner (1) further includes a suction volume ratio changing means (2) for changing a suction volume ratio which is a ratio of a suction volume between the low stage side compression mechanism and the high stage side compression mechanism of the compressor (11). COPYRIGHT: (C)2010,JPO&INPIT