Motorcycle internal combustion engine

摘要

A motorcycle internal combustion engine including engine hangers capable of reducing the size of the internal combustion engine in an up-down direction. A motorcycle internal combustion engine includes a crankcase of the internal combustion engine with an oil filter attached to a front face thereof. Engine hangers are formed integrally with the crankcase on the front face thereof with each having a hanger boss configured to be fastened to a vehicle body frame of a motorcycle from a vehicle left-right direction. The engine hangers are formed to be distributed on left and right sides on the front face of the crankcase. The oil filter is arranged between the left and right engine hangers with the engine hangers and the oil filter overlapping each other in a vehicle side view.

主权项

1. A motorcycle internal combustion engine includes a crankcase of the internal combustion engine with an oil filter being mounted on a front face thereof and engine hangers formed integrally with the crankcase on the front face thereof, each engine hanger having a hanger boss configured to be fastened to a vehicle body frame of a motorcycle from a vehicle left-right direction, comprising:
the engine hangers are formed to be distributed on left and right sides on the front face of the crankcase; the oil filter is arranged to be offset to one side in a width direction of the internal combustion engine with the oil filter being positioned in alignment with and between the left and right engine hangers; and the engine hangers and the oil filter overlap each other in a vehicle side view and one of the engine hangers includes an avoiding portion that is disposed directly adjacent to the oil filter and includes a recessed shape configured to conform to the shape of the oil filter for protecting the oil filter.