| 摘要 |
PURPOSE:To sharply improve a combustion property at a supercharging time as an output performance is held, mixture gas from a main suction system is revolved in a direction of a peripheral of a combustion chamber, and it is efficiently mixed through installation of an ignition plug at an upstream side of a revolving current and an exhaust port at the downstream side. CONSTITUTION:In addition to a main suction path 10 equipped with a fuel feeder, an auxiliary suction path 17 provided with a supercharger is mounted. A revolving current generating means 33, generating a revolving current by revolving mixture gas from a main suction system in a peripheral direction of an engine, is installed. An ignition plug 34, situated facing a combustion chamber 4, is located at an upstream side of a revolving current, and an exhaust port 30a connected to the combustion chamber 4 is located at the downstream side. This enables mixture gas to efficiently exist around the ignition plug 34, which results in obtaining an improved ignition property and in improving a combustion property sharply. |
