Engine component layout for outboard motor

摘要

An intermediate drive mechanism allows an alternator to be mounted beneath an engine flywheel on the side of the engine. This location reduces both the girth and height of the engine, thereby reducing the size of the power head of an outboard motor. The intermediate drive mechanism includes a first intermediate pulley, which lies generally at the same level as a drive pulley attached to the engine output shaft. A second intermediate pulley lies beneath the first intermediate pulley and generally at the same level as a driven pulley of the generator. Belts couple the pulleys of the intermediate drive mechanism to the respective drive and driven pulleys. The intermediate pulleys also can move relative to the corresponding pulleys so as to function as a belt tensioner.