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Title:
SINGLE-CYLINDER INTERNAL COMBUSTION ENGINE AND SADDLE RIDING TYPE VEHICLE COMPRISING THE SAME
Document Type and Number:
Japanese Patent JP2019190351
Kind Code:
A
Abstract:
To provide a single-cylinder internal combustion engine that is easy to assemble and makes less noise, and a saddle riding type vehicle that comprises the same.SOLUTION: An internal combustion engine 10 comprises a connecting rod 27 in which a peripheral part 27D of a hole 35 of a large end part 27A is integrally formed. A crankshaft 25 comprises a first component 51 in which a crank pin 33, a first crank web 31, and a first shaft 41 are integrally formed, and a second component 52 in which a second crank web 32 and a second shaft 42 are integrally formed. In the first component 51, an oil passage 45 passing through the inside of the crank pin 33 and the inside of the first crank web 31 and comprising an outlet 45o formed in an outer peripheral surface of the crank pin 33 is formed. A metal bearing 47 is provided between the large end part 27A of the connecting rod 27 and the crank pin 33.SELECTED DRAWING: Figure 2

Inventors:
OGA KOJI
FUKUSHIGE TAKAHIRO
Application Number:
JP2018083113A
Publication Date:
October 31, 2019
Filing Date:
April 24, 2018
Export Citation:
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Assignee:
YAMAHA MOTOR CO LTD
International Classes:
F02B77/00; F01M1/06; F02B61/02; F16C3/10; F16C7/02
Attorney, Agent or Firm:
Takashi Goto
Akihiro Furuichi