(19)
(11) EP 1 353 045 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
10.03.2004 Bulletin 2004/11

(43) Date of publication A2:
15.10.2003 Bulletin 2003/42

(21) Application number: 03007678.0

(22) Date of filing: 03.04.2003
(51) International Patent Classification (IPC)7: F01L 3/04
(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: 12.04.2002 JP 2002109861

(71) Applicant: FUJI OOZX INC.
Fujisawa-shi, Kanagawa-ken (JP)

(72) Inventors:
  • Kobayashi, Haruki, c/o Fuji Oozx Inc.
    Fujisawa-shi, Kanagawa-ken (JP)
  • Fukuda, Junichi, c/o Fuji Oozx Inc.
    Fujisawa-shi, Kanagawa-ken (JP)

(74) Representative: Lenzing, Andreas, Dr. 
Lenzing Gerber Patentanwälte Postfach 20 05 09
40103 Düsseldorf
40103 Düsseldorf (DE)

   


(54) Poppet valve


(57) A poppet valve that comprises a valve head and a valve stem is used in an internal combustion engine. The valve head is covered with a heat-insulating film except a valve face. The film is made of ceramics. Furthermore, a heat-shielding plate is fixed over a front face of the valve head to form a heat-insulating space between the plate and the front face thereby decreasing operational temperature of the valve.






Search report