(19)
(11) EP 1 609 975 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
07.06.2006 Bulletin 2006/23

(43) Date of publication A2:
28.12.2005 Bulletin 2005/52

(21) Application number: 05013607.6

(22) Date of filing: 23.06.2005
(51) International Patent Classification (IPC): 
F02D 41/34(2006.01)
F02D 41/18(2006.01)
(84) Designated Contracting States:
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU MC NL PL PT RO SE SI SK TR
Designated Extension States:
AL BA HR LV MK YU

(30) Priority: 24.06.2004 JP 2004186851
11.03.2005 JP 2005069521

(71) Applicant: YAMAHA HATSUDOKI KABUSHIKI KAISHA
Iwata-shi Shizuoka-ken (JP)

(72) Inventors:
  • Maebashi, Kosei
    2500 Shingai, Iwata-shi, Shizuoka-ken (JP)
  • Kawamura, Hiroshi
    2500 Shingai, Iwata-shi, Shizuoka-ken (JP)
  • Kimura, Junichi
    2500 Shingai, Iwata-shi, Shizuoka-ken (JP)

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

   


(54) Internal combustion engine


(57) The present invention relates to an engine, in particular four-stroke engine, having at least two cylinders, which ignition timings differ from each other, and a stroke discriminating device for discriminating strokes of said at least two cylinders based upon a difference between intake pressures detected by intake pressure sensors for individually detecting intake pressures of said at least two cylinders.





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