(19)
(11) EP 1 227 223 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
23.04.2003 Bulletin 2003/17

(43) Date of publication A2:
31.07.2002 Bulletin 2002/31

(21) Application number: 02002274.5

(22) Date of filing: 30.01.2002
(51) International Patent Classification (IPC)7: F01L 1/26, F01L 13/00, F01L 1/34
(84) Designated Contracting States:
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR
Designated Extension States:
AL LT LV MK RO SI

(30) Priority: 30.01.2001 JP 2001021829

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

(72) Inventor:
  • Maeda, Hiroyuki
    Iwata-shi, Shizuoka-ken (JP)

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

   


(54) Multi cylinder internal combustion engine and control method therefor


(57) The present invention relates to a multi-cylinder internal combustion engine and a control method therefor, wherein maximum-lift timings of a low speed and high speed cams in at least one cylinder of the multi-cylinder internal combustion engine are varied so as to correct irregularities in volumetric efficiency between cylinders.






Search report