COMBUSTION SYSTEM OF DIRECTLY SPRAYING TYPE GASOLINE ENGINE

摘要

PURPOSE: A directly spraying type gasoline engine is provided to effectively realize the gasoline engine characteristic of a directly spraying type. CONSTITUTION: An engine operation condition of high speed and load is applied in an output mode. Absorbed air is let in a combustion chamber(100) during an intake process. A swirl control valve installed in a tumble port(120a) is perfectly opened to absorb much air. The absorbed air through the tumble and swirl ports forms a flow of a tumble/swirl mixed type according to each port characteristic and has a strong warm current element. Fuel is sprayed through a fuel injector(130) during the intake process and mixed with the flow of the absorbed air. An equal air/fuel mixing period is generated until a compression process.