| 摘要 |
PROBLEM TO BE SOLVED: To provide a cylinder fuel injection-type two-cycle engine for an outboard engine, in which the degree of requirements for heat resistance is low, the degree of freedom of the arranging position of an exhaust control valve is high, and the structure is not complicated. SOLUTION: In a two-cycle engine, fuel is injected and supplied into a combustion chamber by a fuel injection valve, ignited by an ignition plug, and burnt, and exhaust gas is discharged into water through an exhaust passage communicated with exhaust ports 41 opening to cylinders 21, and opening to water. An auxiliary exhaust passage 45 communicated with the atmosphere is connected to the way of the exhaust passage 16, and an exhaust control valve 43 for changing the passage area is arranged in the auxiliary exhaust passage 45. |
