ATBECHDEDKESFRGBGRITLILUNLSEMCPTIESILTLVFIROMKCY..TRBGCZEEHUPLSK..HRIS..MTNO........................JDIM360 Ver 2.15 (14 Jul 2008) - 1999001/02244036CORRECTED EUROPEAN PATENT APPLICATIONpublished in accordance with Art. 153(4) EPCA8A120110921W172deBibliographieenBibliographyfrBibliographieEP09710098.62009021320100915jaenen200803413220080215JP201109212011382010102720104320110921201138F25B 1/00 20060101AFI20090904BHEP F24F 11/02 20060101ALI20090904BHEP F25B 11/02 20060101ALI20090904BHEP deKÄLTEKREISLAUFVORRICHTUNGenREFRIGERATION CYCLE DEVICEfrAPPAREIL À CYCLE DE RÉFRIGÉRATION1Panasonic Corporation101067135PH 820-01EP1006, Oaza KadomaKadoma-shi Osaka 571-8501JPYAKUMARU, Yuichic/o Panasonic Corporation Intellectual Property Rights Operations Company IP Development Center 7F Twin 21 OBP Panasonic Tower, 2-1-61, Shiromi,Chuo-ku, Osaka 540-6207JPTANIGUCHI, Katsujic/o Panasonic Corporation Intellectual Property Rights Operations Company IP Development Center 7F Twin 21 OBP Panasonic Tower, 2-1-61, Shiromi,Chuo-ku, Osaka 540-6207JPHONMA, Masayac/o Panasonic Corporation Intellectual Property Rights Operations Company IP Development Center 7F Twin 21 OBP Panasonic Tower, 2-1-61, Shiromi,Chuo-ku, Osaka 540-6207JPMATSUMOTO, Subaruc/o Panasonic Corporation Intellectual Property Rights Operations Company IP Development Center 7F Twin 21 OBP Panasonic Tower, 2-1-61, Shiromi,Chuo-ku, Osaka 540-6207JPEhlers, Jochen101129551Eisenführ, Speiser & Partner Johannes-Brahms-Platz 120355 HamburgDEATBEBGCHCYCZDEDKEEESFIFRGBGRHRHUIEISITLILTLULVMCMKMTNLNOPLPTROSESISKTRJP200900057820090213jaWO200910181820090820200934

A refrigeration cycle apparatus (100) includes: a first compressor (101); a second compressor (102) connected in parallel with the first compressor (101) in a refrigerant circuit (200); a radiator (103) for cooling a refrigerant compressed by the first and second compressors; an expander (104) coupled to a rotation shaft of the first compressor (101); an evaporator (105) for evaporating the refrigerant expanded by the expander (104); and a controller (115). The controller (115) includes an efficiency enhancing means for performing a first process including a step of changing a rotation speed of the first compressor (101), as a process for increasing a coefficient of performance (COP) of the refrigeration cycle apparatus (100), when a temperature of a heat carrier flowing into the radiator (103) is in a predetermined temperature range, and for performing a second process including a step of changing a rotation speed of the second compressor (102), as a process for increasing the coefficient of performance, when the temperature of the heat carrier flowing into the radiator (103) is not in the predetermined temperature range.