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김상진,권순익,오재건,박병덕 한국액체미립화학회 2000 한국액체미립화학회지 Vol.5 No.4
The behavior of the 2-stage spray was studied by using the schlieren method with the high pressure common-rail injection system. The spray injected 2 times with the interval of 0.3ms--1.5ms between the lst and the 2nd spray in a modeled combustion chamber of constant volume bomb. In this case, the quantity of injected fuel of lst and 2nd also changed. The schlieren photograph shows that the 2nd spray goes further away than the 1st spray when the quantity of the 1st spray is less than that of the 2nd spray. The dispersion of the vapour to the combustion chamber is not affect in a 10% of 1st spray quantity. When the 1st spray quantity is more than the 2nd spray, the vapour scattering of spray is good.