(19)
(11) EP 0 857 922 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
08.12.1999 Bulletin 1999/49

(43) Date of publication A2:
12.08.1998 Bulletin 1998/33

(21) Application number: 98102091.0

(22) Date of filing: 06.02.1998
(51) International Patent Classification (IPC)6: F24H 3/04
(84) Designated Contracting States:
AT BE CH DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE
Designated Extension States:
AL LT LV MK RO SI

(30) Priority: 06.02.1997 JP 24154/97
10.04.1997 JP 92417/97
08.08.1997 JP 215042/97

(71) Applicant: DENSO CORPORATION
Kariya-City Aichi-Pref. 448 (JP)

(72) Inventors:
  • Fukuoka, Mikio
    Kariya-shi, Aichi 448-8661 (JP)
  • Nakamura, Mitsugu
    Kariya-shi, Aichi 448-8661 (JP)
  • Kuroyanagi, Isao
    Kariya-shi, Aichi 448-8661 (JP)
  • Ohara, Toshio
    Kariya-shi, Aichi 448-8661 (JP)
  • Kamiya, Sadayuki
    Kariya-shi, Aichi 448-8661 (JP)
  • Naruse, Shinji
    Kariya-shi, Aichi 448-8661 (JP)
  • Aki, Yoshifumi
    Kariya-shi, Aichi 448-8661 (JP)
  • Yamamoto, Michiyasu
    Kariya-shi, Aichi 448-8661 (JP)

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

   


(54) Core unit of heat exchanger having electric heater


(57) A core unit (3) of a heat exchanger is composed of a plurality of parallel flat tubes (6), a plurality of corrugated fins (7), a support member (100) disposed between two of the corrugated fins (7) and an electric heater (9) disposed inside the support member (100). The support member (100) has a pair of parallel plates (10, 11) bonded to the corrugated fins (7) at the summits of corrugation of the corrugated fins (7). The electric heater (9) is composed of a heating element (9a) and an insulation member (9d) inserted between the heating element (9a) and the parallel plates (10, 11).






Search report