터보 차져 DI 디젤엔진에 있어서 성능 및 배기배출물에 미치는 흡기 포트 선회 유동 및 연료 분사계의 성능

Effects of Intake Port Swirl and Fuel Injection System on the Performance and Exhaust Emissions in a Turbocharged DI Diesel Engine

The purpose of this study is to analyze that intake port swirl and fuel injection system have an effect on the engine performance in a turbocharged D.I. diesel engine of the displacement 9.4L. As result of steady flow test, when the valve eccentricity ratio moved to cylinder wall, the flow coefficient and swirl intensity is increased. And as the swirl is increased, the mean flow coefficient is decreased, whereas the Gulf factor is increased. Through this engine test, it can be expected to meet performance and emissions by the following applied parameters; the swirl ratio is 2.43, injection timing is BTDC 13oCA and compression is 15.5.