Importance

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Abstract

An OHV engine with a reduced height includes a cylinder, a piston inside the cylinder, a crank shaft that converts reciprocating movement of the piston into rotating movement, a connecting rod that connects the piston and the crank shaft to each other, and a cam shaft that moves in association with the crank shaft. When the cylinder is viewed from the crank shaft, the cylinder is inclined in an obliquely upward direction so that an angle defined by the cylinder center axis and a horizontal plane is greater than 0 degree and smaller than about 45 degrees. The cam shaft is at a lower position than the cylinder center axis. The cylinder center axis is offset with respect to a line which passes through a rotation axis of the crank shaft and is parallel or substantially parallel to the cylinder center axis, to a side spaced away from the cam shaft.

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First Claim