(19)
(11) EP 1 455 083 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
19.10.2005 Bulletin 2005/42

(43) Date of publication A2:
08.09.2004 Bulletin 2004/37

(21) Application number: 04003676.6

(22) Date of filing: 18.02.2004
(51) International Patent Classification (IPC)7: F02M 53/04
(84) Designated Contracting States:
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PT RO SE SI SK TR
Designated Extension States:
AL LT LV MK

(30) Priority: 07.03.2003 JP 2003061856

(71) Applicants:
  • NISSAN MOTOR COMPANY, LIMITED
    Yokohama-shi, Kanagawa 221-0023 (JP)
  • Bosch Automotive Systems Corporation
    Yokohama-shi, Kanagawa 224-0012 (JP)

(72) Inventors:
  • Hiraya, Koji
    Yokohama-shi Kanagawa 221-0023 (JP)
  • Hotta, Isamu
    Yokohama-shi Kanagawa 221-0023 (JP)
  • Tsuchida, Hirohumi
    Yokohama-shi Kanagawa 221-0023 (JP)
  • Kubo, Masaaki
    Yokohama-shi Kanagawa 221-0023 (JP)
  • Kushida, Takeo, Bosch Automotive Systems Corp.
    Yokohama-shi Kanagawa 224-0012 (JP)
  • Takamine, Hiroyuki, Bosch Automotive Systems Corp.
    Yokohama-shi Kanagawa 224-0012 (JP)
  • Maeda, Kaoru, Bosch Automotive Systems Corp.
    Yokohama-shi Kanagawa 224-0012 (JP)
  • Kikuchi, Hideya, Bosch Automotive Systems Corp.
    Yokohama-shi Kanagawa 224-0012 (JP)

(74) Representative: Grünecker, Kinkeldey, Stockmair & Schwanhäusser Anwaltssozietät 
Maximilianstrasse 58
80538 München
80538 München (DE)

   


(54) Cooling structure for fuel injection valve


(57) An object of the present invention is to provide a cooling structure (4) for a fuel injection valve (3) that is capable of actively releasing the heat of a nozzle portion (3B) of the fuel injection valve (3) to a low temperature portion (9) of a cylinder head (1), and thus suppressing the generation of deposits on an injection hole (7) of the fuel injection valve (3). A heat conducting member (8), which is capable of thermal conduction between the nozzle portion (3B) of the fuel injection valve (3) and the low temperature portion (9) of the cylinder head (1), is provided on an outer peripheral portion of the fuel injection valve (3).






Search report