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[가솔린엔진부문] 가솔린 직접분사식 고압 분사기의 분사 영역별 분무 유동 특성 고찰
송범근(B.K. Song),정근성(K.S. Jung),김원태(W.T. Kim),강신재(S.J. Kang),노병준(B.J. Rho) 한국자동차공학회 2000 한국자동차공학회 춘 추계 학술대회 논문집 Vol.- No.-
In this experimental study, the spray flow characteristics for a commercial injector equipped in the present GDI engine were investigated, which had a strong influence on the engine performance and emissions. The experiment was performed at the injection pressures of 1, 3, 5 and 7lMPa under the atmospheric condition. A POP A system was used to specify the flow characteristics of the spray. Also, the global spray behavior classified into four regions was analyzed by using a visualization system. Especially, leading edge region of the early stage of spray was compared with vortex cloud one which was related to the last phase of spray.
[가솔린엔진부문] 가솔린 직접분사식 고압 분사기들의 분무 특성 고찰
송범근(B.K.Song),정근성(K.S. Jung),김원태(W.T.Kim),강신제(S.J.Kang),노병준(B.J.Rho) 한국자동차공학회 1999 한국자동차공학회 춘 추계 학술대회 논문집 Vol.1999 No.11_1
In the GDI engines, the spray characteristics of injector have strong influence on the engine performance and emissions. In this experimental investigation, the spray characteristics of three kinds of commercial injectors equipped in the present GDI engines were analyzed. Experiments were performed at I, 3,5, and 9MPa of injection pressure under the atmospheric condition. To specify the characteristics of spray atomization, the PDP A system was used, and it was employed that the visualization system to measure the spray penetration and angle. From the experimental consideration, it can be classified 4 regions of spray images obtained by visualization<br/> <br/>