(19)
(11) EP 0 097 612 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
23.01.1985 Bulletin 1985/04

(43) Date of publication A2:
04.01.1984 Bulletin 1984/01

(21) Application number: 83730057

(22) Date of filing: 21.06.1983
(84) Designated Contracting States:
DE FR GB IT

(30) Priority: 21.06.1982 JP 9146582
22.10.1982 JP 15901782
16.11.1982 JP 17331282

(71) Applicant: MITSUBISHI JUKOGYO KABUSHIKI KAISHA
 ()

(72) Inventors:
  • Hamanaka, Ryomyo Takasago Technical Institute
     ()
  • Fujimoto, Michio Takasago Technical Institute
     ()
  • Aoki, Yoshiaki Nagoya Technical Institute
     ()
  • Watanabe, Yoshinori Nagoya Technical Institute
     ()

   


(54) Heat exchanger


(57) A heat exchanger comprising a flat pipe for allowing a heat exchange medium to pass therethrough, flat surfaces of the flat pipe being confronted with each other at an interval and being disposed in parallel, and fins formed by corrugating a strip metal plate, the fins being arranged between the confronted flat surfaces and along their lengthwise direction, characterized in that the strip metal plate is modified structurally in a new manner whereby yield of a fin material, rigidity of the fins and performance of heat transfer are improved, and occurrence of reject articles is reduced.







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