(19)
(11) EP 0 916 914 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
02.01.2002 Bulletin 2002/01

(43) Date of publication A2:
19.05.1999 Bulletin 1999/20

(21) Application number: 98118939.2

(22) Date of filing: 07.10.1998
(51) International Patent Classification (IPC)7: F25B 41/04, B60H 1/00
(84) Designated Contracting States:
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE
Designated Extension States:
AL LT LV MK RO SI

(30) Priority: 14.11.1997 JP 31326197
01.04.1998 JP 8863798
18.06.1998 JP 17042398

(71) Applicant: TGK CO., Ltd.
Tokyo 193-0942 (JP)

(72) Inventor:
  • Hirota, Hisatoshi
    Hachioji-shi (JP)

(74) Representative: Grünecker, Kinkeldey, Stockmair & Schwanhäusser Anwaltssozietät 
Maximilianstrasse 58
80538 München
80538 München (DE)

   


(54) A refrigerating cycle


(57) A refrigerating cycle with a by-pass duct 5 in which heat exchange for heating is arranged to be performed in an evaporator 4 without passing refrigerant through a condenser 2 is designed to perform an auxiliary heating mode suitable for the instantaneous conditions by controlling the amount of refrigerant circulating in response to the load and the like. Said by-pass duct 5 for supplying the refrigerant from the compressor 1 to the evaporator 4 without passing it through the condenser 2 is placed in juxtaposition. Between the outlet of the evaporator 4 and the inlet of the compressor 1 an accumulator 6 for temporarily storing low-pressure refrigerant liquid is provided so that the amount of refrigerant circulating is controlled by accumulator 6 while the refrigerant circulates via by-pass duct 5 without passage through condenser 2.






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