연료 직접분사가 가솔린 연소에 미치는 영향 연구The Effect of Direct Fuel Injection on Gasoline Combustion

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Combustion performance of Gasoline Direct Injection(GDI) Engine was tested while it was operated at several combustion chamber conditions. Two sets of injector and spark positions were examined, and curved (or bowl) piston was used for guiding the spray direction. When GDI engine was operated at the early injection condition, the evident differences of combustion performance according to the combustion chamber shapes could be observed. Using the visualized engine, we showed the spray processes and the proof of film combustion phenomenon. The difference of wetted fuel amount could be regarded as the reason of imep variation.
Publisher
한국자동차공학회
Issue Date
1998-11
Keywords

GDI Engine; Single Cylinder Engine; Piston Crown Shape; Optical Engine; Injection Timing; IMEP; Direct Photographic Method; Film Combustion; Wetting

Citation

한국자동차공학회 1998년 추계학술대회, pp.46-51

URI
http://hdl.handle.net/10203/16080
Link
http://www.ksae.org/
Appears in Collection
ME-Conference Papers(학술회의논문)

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