| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a small vessel which prevents water from entering the inside of an aggregate air intake passage, and also, prevents the aggregate air intake passage from being heated. <P>SOLUTION: On this small vessel 10, an engine 20 equipped with a plurality of air cylinders 26 having an air suction port and an exhaust port is arranged in such a manner that the crank shaft 21 may extend in the longitudinal direction of the hull 11. Then, an air suction device 30 equipped with an inner manifold 32 with which a plurality of air suction tubes 31 being respectively connected with the air suction port, and an air exhausting device 40 equipped with a second muffler 44 and so forth with which a plurality of exhaust conduits 41 being respectively connected with the exhaust port are provided in such a manner that the inner manifold 32 may be located above the second muffler 44. Also, the engine 20 is tilted to the starboard side of the hull 11, the air suction tubes 31 are extended diagonally upward from the air suction port, and the exhaust conduits 41 are extended diagonally downward from the exhaust port. In addition, a rectifying device 37 and a throttle valve 33b are provided on the upstream side section from the connected section between the inner manifold 32 and the air suction tubes 31 in the air suction device 30. <P>COPYRIGHT: (C)2005,JPO&NCIPI |
