(19)
(11) EP 1 251 325 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
28.07.2004 Bulletin 2004/31

(43) Date of publication A2:
23.10.2002 Bulletin 2002/43

(21) Application number: 02008598.1

(22) Date of filing: 16.04.2002
(51) International Patent Classification (IPC)7: F28D 9/00
(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: 18.04.2001 JP 2001119107
19.02.2002 JP 2002041564

(71) Applicant: The Furukawa Electric Co., Ltd.
Tokyo 100-8322 (JP)

(72) Inventors:
  • Hosokawa, Toshiyuki
    Chiyoda-ku, Tokyo 100-8322 (JP)
  • Hideno, Akira
    Chiyoda-ku, Tokyo 100-8322 (JP)

(74) Representative: Sajda, Wolf E., Dipl.-Phys. et al
MEISSNER, BOLTE & PARTNER Widenmayerstrasse 48
80538 München
80538 München (DE)

   


(54) Heat exchanger


(57) A heat exchanger comprises: a corrugated plate (1); a base plate (2); a cover plate (4); a plurality of flow paths A and a plurality of flow paths B defined by the corrugated plate (1), the base plate (2) and the cover plate (4) disposed so as to interpose the corrugated plate (1) therebetween. The plurality of flow paths A and the plurality of flow paths B are alternately and adjacently arranged on both sides of the corrugated plate (1) for exchanging heat between fluid A and fluid B via the corrugated plate (1) by supplying fluid A through a plurality of flow paths A and fluid B through a plurality of flow paths B.
At least one of end portions of the plurality of flow paths is hermetically sealed by making partial cuts (13) at the end portions (10) of the corrugated plate (1) and/or folding a part of the end portions (10) of the corrugated plate (1), bending opposing ends of the corrugated plate (1) so as to form them respectively into a shape of a gable roof, bringing at least a part of the ends of the corrugated plate (1) into contact with each other, and brazing portions in contact, so that openings of one of the flow paths A and the flow paths B are hermetically sealed for allowing only one of the fluids to flow in/out at each end of the corrugated plate (1).






Search report