To suppress the generation of a high-order vibration component peculiar to a double-link mechanism.
The double-link mechanism has: a rocker arm 31 supported to a machine body so as to oscillate with a fulcrum 31A as a center; a first link 32 which connects one end of the rocker arm 31 and a piston pin 34 of the piston; and a second link 33 which connects the other end of the rocker arm 31 and a crank pin 5 of a crankshaft 4. When setting a linear line connecting ends 36B, 36C of a trace 36A of a connecting point between the rocker arm 31 and the second link 33 as a first linear line 46C, and when setting a line perpendicular to a linear line connecting a connecting point 36 between the rocker arm 31 and the second link 33 and the fulcrum 31A of the rocker arm when formed at a piston top dead point as a second linear line 47, the rotation center 4A of the crankshaft 4 is arranged in a region 45 which is sandwiched between the first linear line 46 and the second linear line 47.
| WO/2011/016084 | TWO-CYLINDER ENGINE |
| JP2006307686 | INTERNAL COMBUSTION ENGINE |
| JP2006226442 | ASSEMBLY OF PISTON AND CONNECTING ROD |
MOGI KATSUYA
FUKAMI TORU
| JP2007285132A | 2007-11-01 | |||
| JP2006052667A | 2006-02-23 | |||
| JP2007285132A | 2007-11-01 |
| GB228706A | 1925-02-16 | |||
| GB2312242A | 1997-10-22 | |||
| GB228706A | 1925-02-16 | |||
| GB2312242A | 1997-10-22 |
Tomioka Kiyoshi
Tsuyoshi Hashimoto
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