| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a cooling water passage structure of an outboard motor that can improve the water supply efficiency, while securing the degree of freedom of the layout when disposing one water intake part and the other water intake part. <P>SOLUTION: The cooling water passage structure includes: main water intake parts 32L and 32R provided at right and left of a casing 19 of a lower unit and composed to form a space that takes water; a cooling water passages 33 that leads the water taken in at the main water intake part 32L to a cooling water pump; and a subwater intake part 37L disposed right and left of the tip parts of the gear case part 20 of the casing 19, and the subwater intake part 37L is communicated to the space of the main water intake part 32L through each cooling water passage 38L. The space of the main water intake part 32L is separated to a first flow passage F<SB POS="POST">1</SB>to lead the water taken by the first water intake part 32L into the cooling water passage 33 and a second flow passage F<SB POS="POST">2</SB>to lead the water taken by a subwater intake part 37L to the cooling water passage 33. <P>COPYRIGHT: (C)2013,JPO&INPIT |
