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Aspects of Mixture Formation in a Swirl Type GDI Engine  

김기성 (여수대학교 기계공학과)
박상규 (여수대학교 기계공학과)
Publication Information
Journal of Advanced Marine Engineering and Technology / v.27, no.2, 2003 , pp. 260-271 More about this Journal
Abstract
For the Purpose of understanding the mixing phenomena of a GDI(Gasoline Direct Injection) engine, the spray behaviors and fuel distributions were investigated in a single cylinder transparent GDI engine. The experimental engine is a swirl type GDI engine with a SCV(Swirl Control Valve). PLIF(Planar Laser Induced Fluorescence) system with KrF Excimer laser was used for the measurement of the fuel distributions. The effects of SCV opening angles and the injector specifications on the fuel distribution characteristics were investigated. As a result, it was found that the SCV opening angle had a great effect on the fuel distributions in the late stage of compression process by changing the flow fields in the combustion chamber.
Keywords
GDI engine; Fuel Distribution; PLIF(Planar Laser Induced Fluorescence); Spray;
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