(19)
(11) EP 2 806 121 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
25.03.2015 Bulletin 2015/13

(43) Date of publication A2:
26.11.2014 Bulletin 2014/48

(21) Application number: 14165177.8

(22) Date of filing: 17.04.2014
(51) International Patent Classification (IPC): 
F01M 1/00(2006.01)
 F02F 7/00(2006.01)
(84) Designated Contracting States:
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated Extension States:
BA ME

(30) Priority: 23.05.2013 JP 2013108643

(71) Applicant: Yamaha Hatsudoki Kabushiki Kaisha
Iwata-shi, Shizuoka 438-8501 (JP)

(72) Inventor:
  • Sawaoka, Jyouji
    Iwata-shi, Shizuoka 438-8501 (JP)

(74) Representative: Grünecker, Kinkeldey, Stockmair & Schwanhäusser 
Anwaltssozietät Leopoldstrasse 4
80802 München
80802 München (DE)

   


(54) Motorcycle


(57) A motorcycle includes a body frame, and an internal combustion engine having a crankshaft, a drive shaft, an upper crankcase disposed above the crankshaft and the drive shaft, a lower crankcase (60) disposed below the crankshaft and the drive shaft, and a cylinder body disposed above the upper crankcase and having a plurality of cylinders arranged transversely. The lower crankcase (60) has a left boss portion (130) and a right boss portion (134) respectively having holes (132), (136) for receiving a rod-shaped fastener extending transversely, and secured to the body frame by the fastener. The lower crankcase (60) includes an oil passage (160) through which oil to be supplied to the drive shaft flows, the oil passage (160) formed integrally with the lower crankcase (60).







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Search report