논문제목 : 정적 체임버 내에서 분사 조건에 따른 다공형 직분식 가솔린 인젝터의 분무 거동 특성
저자 : 박정환, 박수한, 이창식, 이일남, 박성욱
발표자 : 박정환
2011년 한국자동차공학회 부문 학술대회 일시 : 2011년 5월 19~21일 장소 : 제주 라마다 플라자 호텔 주관 : 한국자동차공학회
Abstract : The aim of this study is to investigate the effect of the energizing duration and the ambient gas pressure on the gasoline direct injection (GDI) spray behavior characteristics in a constant volume-high pressure chamber. In order to visualize the GDI spray, the spray visualization system, which consists of the high-speed camera, the meta-halide lamps, and the synchronizing systems, is utilized. In addition, the n-heptane fuel that has a similar physical properties with gasoline fuel is used for the safety. It was revealed through the spray image analysis that the effect of energizing duration for spray tip penetration is insignificant. Also, the spray tip penetration is decreased according to the increasing ambient pressure due to the increase of the drag force and friction of ambient gas. The rotating vortex was located closely the injector nozzle tip as increase of ambient pressure.
논문제목 : 정적 체임버 내에서 분사 조건에 따른 다공형 직분식 가솔린 인젝터의 분무 거동 특성
저자 : 박정환, 박수한, 이창식, 이일남, 박성욱
발표자 : 박정환
2011년 한국자동차공학회 부문 학술대회
일시 : 2011년 5월 19~21일
장소 : 제주 라마다 플라자 호텔
주관 : 한국자동차공학회
Abstract : The aim of this study is to investigate the effect of the energizing duration and the ambient gas pressure on the gasoline direct injection (GDI) spray behavior characteristics in a constant volume-high pressure chamber. In order to visualize the GDI spray, the spray visualization system, which consists of the high-speed camera, the meta-halide lamps, and the synchronizing systems, is utilized. In addition, the n-heptane fuel that has a similar physical properties with gasoline fuel is used for the safety.
It was revealed through the spray image analysis that the effect of energizing duration for spray tip penetration is
insignificant. Also, the spray tip penetration is decreased according to the increasing ambient pressure due to the
increase of the drag force and friction of ambient gas. The rotating vortex was located closely the injector nozzle tip as increase of ambient pressure.