(19)
(11) EP 1 132 706 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
19.03.2003 Bulletin 2003/12

(43) Date of publication A2:
12.09.2001 Bulletin 2001/37

(21) Application number: 01105273.5

(22) Date of filing: 05.03.2001
(51) International Patent Classification (IPC)7: F28D 1/03, F28F 9/18, F28F 3/04
(84) Designated Contracting States:
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR
Designated Extension States:
AL LT LV MK RO SI

(30) Priority: 06.03.2000 JP 2000060914

(71) Applicant: Mitsubishi Heavy Industries, Ltd.
Tokyo (JP)

(72) Inventors:
  • Nakado, Koji, Mitsubishi Heavy Ind. Ltd.
    Nishi-kasugai-gun, Aichi-ken (JP)
  • Okamura, Toru, Mitsubishi Heavy Ind. Ltd.
    Nishi-Kasugai-gun, Aichi-ken (JP)
  • Inoue, Masashi, Mitsubishi Heavy Ind. Ltd.
    Nishi-Kasugai-gun, Aichi-ken (JP)
  • Yoshitomi, Kei, Mitsubishi Heavy Industries Ltd.
    Nakamura-ku, Nagoya, Aichi-ken (JP)

(74) Representative: Henkel, Feiler, Hänzel 
Möhlstrasse 37
81675 München
81675 München (DE)

   


(54) Heat exchanger


(57) A heat exchanger comprises: a pair of headers (10, 10) which are provided in parallel facing each other through a predetermined distance and a pathway of the fluid is respectively provided therein; and a plurality of flat heat-exchange tubes (20,20...) which are provided between the headers in parallel, both ends thereof are fastened to the headers, and a pathway of the refrigerant for connecting the pathways of both headers is respectively provided therein. In this heat exchanger, the heat-exchange tubes and the headers are air-tightly and liquid-tightly fastened by inserting end portions (21,21...) of the heat-exchange tubes into insertion holes (11,11...) which are bored on the headers. Furthermore, in the vicinity of opening ends (29) of both end portions of the flat heat-exchange tubes, shape-holding portions (41) for preventing deformation of the opening ends are provided.






Search report