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[가솔린엔진부문] 가솔린 분무 거동에 미치는 분위기 조건의 영향
이창식(Chang-sik Lee),이기형(Ki-hyung Lee),최수천(Soo-chun Choi),권상일(Sang-il Kwon) 한국자동차공학회 1999 한국자동차공학회 춘 추계 학술대회 논문집 Vol.1999 No.11_1
The main objective of this work is to investigate the effect of ambient conditions on the spray behavior and spray characteristics of high-pressure fuel injector for the direct-injection gasoline engine, For this purpose ‘ the effects of ambient pressure and temperature on tile spray characteristics have been studied by applying the analysis of visualization system and phase Doppler panicle analyzer. In this experiment, the visualization of spray behavior was performed under various ambient gas conditions and injection parameters such as gas temperature. ambient pressure ‘ injection pressure of injector. and axial distance from the nozzle tip.<br/> Based on the investigation results, the spray tip penetration and spray width decrease in accordance with the increase of ambient gas pressure in the spray chamber, The effects of the other parameters on the microscopic characteristics of gasoline spray were discussed, and the droplet mean size of fuel spray is shown on the basis of experimentally obtained results