MPI인젝터의 분무 특성에 따른 벽류 생성 및 분포에 관한 연구

In the case that EGI system is applied, air-fuel mixing period is so short that a lot of fuel-film and liquid-fuel flow into cylinder. Since this fuel-film is not burnt in cylinder, it is exhausted in the form of HC emission. In. this paper, fuel-film measuring device is manufactured specially, the amount and distribution of fuel-film which flows into through valve, can be measured quantitatively using this device. And, with the spark plug in which optical fiber inserted, diffusion flame is observed at second hand. As the result of this experiment, the information of optimal spray characteristics and injection condition that minimize fuel-film development, can be built up.