| 摘要 |
PURPOSE:To make it possible that exhaust gases of respective cylinders interfere with each other through a horizontal hole of a connecting member to thereby increase power and reduce the exhaust-gas sound by providng a plurality of vertical holes and the horizontal hole connecting the plurality of vertical holes at the central parts of the vertical holes. CONSTITUTION:Vertical holes 2 of the connecting body 1 are respectively connected to exhaust pipes 6 and second exhaust pipes 7, and respective vertical holes 2 are communicated with each other by the horizontal hole 3. Therefore, exhaust gases from respective cylinders interfere with each other to increase power. Further, by the interference of the cylinders of these exhaust gases, exhaust-gas sound is reduced. A large number of cooling fins 4 are provided upright at the outer side of the connecting member 1, and hence dispersion of heat is carried out by the cooling fins 4 and the cooling effect can be increased. |
