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GDI 엔진의 분할 분사가 아이들 연소 안정 및 배출물 특성에 미치는 영향
노현구 ( H G Roh ) 한국분무공학회 2014 한국액체미립화학회지 Vol.19 No.4
This paper described the effect of split injections on the stability of combustion and emission characteristics in a directinjection gasoline engine at various operating conditions. In order to investigate the influence of direct injection gasoline engine, the fuel injection timing was varied direct fuel injection at various fuel pressure. The experimental apparatus consisted of GDI engine with 4 cylinder, EC dynamometer, injection control system, and exhaust emissions analyzer. The emission and combustion characteristics were analyzed for the fuel injection timing and fuel injection pressure strategies. It is revealed that CO and HC emissions are dramatically decreased at advanced injection timing. Also, engine performance is increased atincrease fuel injection pressure.