| 摘要 |
<p>A water jet propulsion type outboard motor (1) comprising a casing member (50), a frame (10), an engine (11), a gear casing (13), a vertical drive shaft (12), a horizontal driven shaft (14), a power transmission mechanism (15) and an impeller (5). The casing member (50) comprises a water suction port (3a) at a forward end thereof, a jet port (6a) at a rear end thereof, a first inner space (51) extending obliquely upward and rearward from the water suction port (3a), and a second inner space (52) extending substantially horizontally from a rear end of the first inner space (51) to the jet port (6a). The gear casing (13) is disposed laterally and forwardly of the second inner space (52) and substantially vertically upwardly of the water suction port (3a). The vertical drive shaft (12) extends downward from the engine (11) to be inserted into the gear casing (13), and the horizontal driven shaft (14) extends laterally and forward from the second inner space (52) to be inserted into the gear casing (13). The power transmission mechanism (15) is provided in the gear casing (13) to connect the vertical drive shaft (12) and the horizontal driven shaft (14). Accordingly, it is possible to shorten the horizontal driven shaft (14) and reduce a distance, over which the water jet propulsion type outboard motor (1) extends rearward from a hull (2). <IMAGE></p> |
