Machine provided with internal combustion engine and generator

Abstract

An outboard motor S includes an internal combustion engine E having a crankshaft, and an alternator G having a shaftand a housing. The engine E and the generator G are disposed in an engine compartmentwith the crankshaftof the engine E and the shaftof the alternator G spaced a center distance d apart from each other. The housingis provided with air inletsthrough which cooling air for cooling the interior of the alternator G flows into the housingand air outletsthrough which cooling air that has cooled the alternator G is discharged as exhaust air. An exhaust air ductsurrounds the outletsof the housingand carries the exhaust air to a predetermined position from which the exhaust air cannot easily flow again through the inletsinto the housing. The alternator G spaced the center distance apart from the internal combustion engine E can be cooled at improved cooling efficiency.