| 摘要 |
PURPOSE:To enhance cooling capacity corresponding to increasing water running capacity by arranging a main radiator on the front upper section of an engine, concurrently arranging plural numbers of sub-radiators on the front lower section, and thereby connecting the main radiator in series with the sub-radiators in order. CONSTITUTION:A main radiator 5 is connected with a sub-radiator 6a through a connecting pipe 7, the radiator 6a is connected with an adjacent radiator 6b through a connecting pipe 8, and furthermore, the radiator 6b is connected with a cooling pump through a connecting pipe 9. The cooling pump supplies cooling water which has passed through the radiators 5, 6a and 6b in order while being cooled, to the jacket of a front cylinder 2a, then, to the jacket of a rear cylinder 2b for cooling the cylinder section of an engine so that cooling water is circulated to the radiator 5 through a connecting pipe 10 thereafter. By this constitution, cooling capacity can be enhanced with increasing water running capacity for the radiators. |
