To provide an engine efficiently cooling a cylinder head.
This engine 1 includes: a cooling fan 32 attached to a crankshaft; a combustion chamber formed with a combustion chamber-side intake opening 27 provided on a side close to the cooling fan 32 and a combustion chamber-side exhaust opening 28 provided on a side far from the cooling fan 32 so that the openings are juxtaposed to the direction of the axis 26 of the crankshaft when viewed from the axis direction of a cylinder; an intake port 21 extending from the combustion chamber-side intake opening 27 toward a first direction separated from the direction of the axis 26 of the crankshaft when viewed from the axis direction of the cylinder; and an exhaust port 22 extending from the combustion chamber-side exhaust opening 28 so that it is directed to a second direction different from the first direction and separated from the direction of the axis 26 of the crankshaft from the combustion chamber-side exhaust opening 28 and the distance from the combustion chamber-side exhaust opening 28 in the direction of the axis 26 of the crankshaft is increased as it is separated from the combustion chamber-side exhaust opening 28.
| JP2000220519 | OHC TYPE AIR-COOLED ENGINE |
HORIUCHI TAKAMIKI
TAKEDA TAKESHI
HIRAI TAKAHIRO
KURIHARA KATSUMI
| JP2004324420A | 2004-11-18 | |||
| JPH0475146U | 1992-06-30 | |||
| JP2004324420A | 2004-11-18 | |||
| JP2001098934A | 2001-04-10 | |||
| JPS5613514U | 1981-02-05 | |||
| JP2003090219A | 2003-03-28 |
Johei Nakamura
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