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2중 분류를 형성하는 가솔린 연료분사기들의 분무 특성에 관한 연구
장연상(Y.S.Chang),김원태(W.T.Kim),강신재(S.J.Kang),노병준(B.J.Rho) 한국자동차공학회 1998 한국자동차공학회 춘 추계 학술대회 논문집 Vol.1998 No.11_1
The fuel injector of 4-Valve gasoline engine, is required dual-stream. Thus, in this study spray behavior and atomization characteristics of the injectors forming dual-stream, is investigated by spray visualization and 3D PDPA measurement. As a result, the atomization performance of 4-hole injector is superior to 2-hole injector about 30%. And the atomization performance of air shroud 4-hole injector is very excellent but it doesn't form dual stream over 20kPa air shroud. Air shroud injector with separator maintains dual stream up to 80kPa air shroud, it is expected about 45% improvement of atomization.<br/>
이강웅(K.W.Lee),장연상(Y.S.Chang),김원태(W.T.Kim),강신재(S.J.Kang),노병준(B.J.Rho) 한국자동차공학회 1997 한국자동차공학회 춘 추계 학술대회 논문집 Vol.1997 No.11_1
This study is investigated to the atomization characteristics of pintle type gasoline injector with air swirl adaptors. Air swirl adaptors have four swirl angle such as 0˚, 15˚, 30˚, 45˚, In this study, injector is used air and unlead gasoline fuel as working fluids. Spray visualization and PDPA measurements were carried out under the various assisted air pressure and the fixed fuel pressure. For analysis the atomization characteristics, distributions of mean diameter, number probability density, and SMD are examined with swirl angles of adoptor, axial and radial distance, etc.<br/>