Power unit of a saddle-seat vehicle

Details Power unit of a saddle-seat vehicle Power unit of a saddle-seat vehicle

1997-10-24

1999-11-30

Kwon, John

Internal-combustion engines

Cooling

Air-cooled

123195AC, F01P 100

Patent

active

059923555

ABSTRACT:
An arrangement for improving the cooling performance of an engine by suitably arranging an exhaust pipe and a valve mechanism with respect to the inclined direction of a cylinder block. A cylinder block is inclined in the rightward or leftward direction of a vehicle body, and an exhaust pipe and a valve mechanism are disposed along the inclined side wall of the cylinder block. The opposed side wall of the cylinder block, which has a large space in the vertical direction and exerts a large effect on the cooling performance of the engine, is less susceptible to thermal effects from the exhaust pipe and the valve mechanism, to thereby improve the cooling performance of the entire engine.

REFERENCES:
patent: 2966146 (1960-12-01), Schweotzer et al.
patent: 4395980 (1983-08-01), Tominaga et al.
patent: 4811705 (1989-03-01), One et al.
patent: 5636608 (1997-06-01), Shichinohe et al.

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