(19)
(11) EP 0 699 883 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
24.07.1996 Bulletin 1996/30

(43) Date of publication A2:
06.03.1996 Bulletin 1996/10

(21) Application number: 95113686.0

(22) Date of filing: 31.08.1995
(51) International Patent Classification (IPC)6: F25D 16/00, F25D 17/06, F25B 41/04
// B60H1/32
(84) Designated Contracting States:
DE GB NL

(30) Priority: 31.08.1994 JP 207249/94
25.01.1995 JP 10191/95
31.03.1995 JP 74925/95
22.06.1995 JP 156196/95

(71) Applicant: NIPPONDENSO CO., LTD.
Kariya-city Aichi-pref., 448 (JP)

(72) Inventors:
  • Yamazaki, Jun
    Okazaki-shi, Aichi (JP)
  • Kase, Kiyoshi
    Kariya-shi, Aichi (JP)
  • Takeuchi, Hirotsugu
    Anjo-shi, Aichi (JP)
  • Makida, Kazuhisa
    Handa-shi, Aichi (JP)

(74) Representative: Klingseisen, Franz, Dipl.-Ing. et al
Patentanwälte, Dr. F. Zumstein, Dipl.-Ing. F. Klingseisen, Postfach 10 15 61
D-80089 München
D-80089 München (DE)

   


(54) Refrigerating system


(57) A refrigerating system having a cool storage evaporator 14 and a refrigerating evaporator 15 arranged in series. The cool storage evaporator 14 includes a rounded cross sectioned tube 25 which is in contact with a cool storage material stored in containers. The cool storage material has a melting temperature which substantially corresponds to a predetermined value of evaporating temperature of a refrigerant when the temperature inside a refrigerating compartment is reduced to a predetermined value for switching from a refrigerating operation to a cool storage operation. During the refrigerating operation, the cool storage material is prevented from being frozen, thereby preventing a load to the cool storage material. During a cool storage operation obtained by stopping the operation of an inner fan 31, a throttling of a temperature operated expansion valve 13 maintains desired temperature difference between the temperature of the cool storage material and an evaporating temperature of the refrigerant at the cool storage evaporator 14.






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