(19)
(11) EP 1 577 622 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
31.01.2007 Bulletin 2007/05

(43) Date of publication A2:
21.09.2005 Bulletin 2005/38

(21) Application number: 05005611.8

(22) Date of filing: 15.03.2005
(51) International Patent Classification (IPC): 
F25B 1/10(2006.01)
F25B 5/02(2006.01)
 F25D 11/02(2006.01)
(84) Designated Contracting States:
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU MC NL PL PT RO SE SI SK TR
Designated Extension States:
AL BA HR LV MK YU

(30) Priority: 19.03.2004 JP 2004079341
19.03.2004 JP 2004079342

(71) Applicant: SANYO ELECTRIC CO., LTD.
Moriguchi-shi, Osaka 570 (JP)

(72) Inventors:
  • Imai, Satoshi
    Gunma 373-0861 (JP)
  • Sugawara, Akira
    Kumagaya-shi Saitama 360-0161 (JP)
  • Mukaiyama, Hiroshi
    Gunma 370-0725 (JP)
  • Nagae, Etsushi
    Ora-gun Gunma 370-0533 (JP)
  • Itsuki, Hiroyuki
    Ora-gun Gunma 370-0533 (JP)
  • Mizukami, Kazuaki
    Ora-gun Gunma 370-0523 (JP)
  • Kamimura, Ichiro
    Nitta-gun Gunma 379-2311 (JP)

(74) Representative: Glawe, Delfs, Moll 
Patentanwälte Postfach 26 01 62
80058 München
80058 München (DE)

   


(54) Refrigerating machine


(57) A refrigerating machine is equipped with a compressor 1, a radiator 2, a pressure-reducing device 3, a gas-liquid separator 4, a unit for introducing the gas refrigerant separated in gas-liquid separator 4 into an intermediate pressure portion of the compressor, and a low pressure side circuit 9 in which liquid refrigerant separated in the gas-liquid separator is circulated. The low pressure side circuit 9 is provided with a heat absorbing unit 10 which selectively functions in different temperature zones. When the heat absorbing unit 10 is made to function in a high temperature zone, the gas refrigerant separated in the gas-liquid separator 4 is inhibited from being introduced into the intermediate pressure portion of the compressor 1 is inhibited, or allowed to be introduced into another intermediate pressure portion which is lower in pressure than the intermediate pressure portion.







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