Importance

Loading Importance Indicators...

Abstract

An outboard motor has a first case member and a second case member connected to the first case member to form an enclosure having an inner space in which is mounted an engine. The first case member has an air intake hole for taking air into the inner space and a vent hole for exhausting the air after it circulates in the inner space to cool the interior of the inner space. An alternator is disposed in the inner space of the enclosure and has a hollow casing, air passage holes formed in the hollow casing, and cooling fans for drawing air from the air passage holes into the hollow casing to cool the alternator. A cover member is disposed in the inner space of the enclosure and covers at least a portion of the alternator. The cover member has a vent hole communicating with the vent hole of the first case member, an upper wall, a side wall extending from the upper wall and surrounding the portion of the alternator, and air passage holes formed in the side wall for introducing air therethrough into the cover member and through the air passage holes of the alternator hollow casing to cool the alternator before the air is discharged from the vent hole of the cover member. An electric equipment box is disposed in the engine room at a position intermediate the air intake hole of the engine cover and the alternator.

Loading the Abstract Image...

First Claim