(19)
(11) EP 0 730 132 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
14.01.1998 Bulletin 1998/03

(43) Date of publication A2:
04.09.1996 Bulletin 1996/36

(21) Application number: 96107852.4

(22) Date of filing: 27.09.1991
(51) International Patent Classification (IPC)6: F28F 3/08
(84) Designated Contracting States:
DE FR GB IT SE

(30) Priority: 28.09.1990 JP 260992/90
26.10.1990 JP 288725/90
05.04.1991 JP 72871/91

(62) Application number of the earlier application in accordance with Art. 76 EPC:
91916786.6 / 0503080

(71) Applicant: MATSUSHITA REFRIGERATION COMPANY
Higashiosaka-shi, Osaka 577 (JP)

(72) Inventors:
  • Matsunaga, Tsuyoshi
    Yasugun, Shiga 520-23 (JP)
  • Fujino, Kenji
    Nara-shi, Nara 630 (JP)
  • Sugahara, Takashi
    Otsu-shi, Shiga 520-21 (JP)
  • Kan, Hiroaki
    Otsu-shi, Shiga 520-22 (JP)

(74) Representative: Eisenführ, Speiser & Partner 
Martinistrasse 24
28195 Bremen
28195 Bremen (DE)

 
Remarks:
This application was filed on 17 - 05 - 1996 as a divisional application to the application mentioned under INID code 62.
 


(54) Layer-built heat exchanger


(57) A layer-built heat exchanger in which channels are formed by dividers in the first-side plate 32 and second-side plate 33, and a seal plate 3 is interposed between the first-and second-side plates. The first-side plate 32 and second-side plate 33 are positioned relative to each other such that the dividers 35 of the second-side plate 33 are in line with the channels 11 of the first-side plate 32, and the dividers 34 of the first-side plate 32 are in line with the channels 17 of the second-side plate 33, thus preventing deformation of the seal plate 3 due to a high differential pressure between the coolants flowing through the channels of the first- and second-side plates. The corners of the first-side plate 32, second-side plate 33, and seal plate 3 are also shaped differently so that omission of one of the component plates can be easily confirmed.






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