HEAD COVER FOR INTERNAL COMBUSTION ENGINE

摘要

A head cover (10) for an internal combustion engine is so disposed that the surface (15) of the head cover (10) to be fastened to a machine body is tilted relative to the horizontal plane. The height of the upper end of an oil outflow prevention wall (25) from the surface (15) as a reference plane on the ascent side of the slope of the surface (15) is larger than that on the descent side. Therefore, an oil is hard to flow out over the oil outflow prevention wall (25), the outflow of the leaked oil to an unintended portion can be avoided, and an excellent oil supply operation performance filler cap detachment/attachment operation efficiency can be kept on the ascent side of the slope.