(19)
(11) EP 1 063 419 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
16.07.2003 Bulletin 2003/29

(43) Date of publication A2:
27.12.2000 Bulletin 2000/52

(21) Application number: 00113005.3

(22) Date of filing: 20.06.2000
(51) International Patent Classification (IPC)7: F02M 51/06, F02M 61/16
(84) Designated Contracting States:
AT BE CH CY 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: 21.06.1999 JP 17369499

(71) Applicants:
  • Hitachi, Ltd.
    Chiyoda-ku, Tokyo 101-8010 (JP)
  • Hitachi Car Engineering Co., Ltd.
    Hitachinaka-shi, Ibaraki 312-0062 (JP)

(72) Inventors:
  • Nakamaya, Yoko, c/o Hitachi,Ltd.,Int. Prop. Group
    Chiyoda ku, Tokyo 100-8220 (JP)
  • Tanabe,Yoshiyuki, c/o Hitachi,Ltd.,Int.Prop.Group
    Chiyoda ku, Tokyo 100-8220 (JP)
  • Nogi,Toshiharu, c/o Hitachi,Ltd.,Int.Prop.Group
    Chiyoda ku, Tokyo 100-8220 (JP)
  • Kadomukai, Yuzo, c/o Hitachi,Ltd.,Int.Prop.Group
    Chiyoda ku, Tokyo 100-8220 (JP)
  • Yamakado,Makoto, c/o Hitachi,Ltd.,Int.Prop.Group
    Chiyoda ku, Tokyo 100-8220 (JP)
  • Sekine, Atsushi, c/o Hitachi Car Eng. Co. Ltd.
    Ibaraki-ken 312-0062 (JP)

(74) Representative: Beetz & Partner Patentanwälte 
Steinsdorfstrasse 10
80538 München
80538 München (DE)

   


(54) Fuel injection valve


(57) A damper is formed between the nozzle and the plunger (2) of the fuel injection valve (1). This suppresses the bouncing of the plunger (2) and consequently suppresses secondary injections. Further, this can suppress depositions of chemicals on the fuel injection valve (1), generation of soot at improper combustion of fuel, and combustion control errors.






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