논문 : 정적 연소기 내 가솔린 직접 분사 시 분무 및 연소특성에 관한 연구
분야
자연과학 > 화학
저자
김경배 ( Kyung Bae Kim ) , 강석호 ( Seok Ho Kang ) , 박기영 ( Gi Young Park ) , 서준협 ( Jun Hyeop Seo ) , 이영훈 ( Young Hoon Lee ) , 김대열 ( Dae Yeol Kim ) , 이성욱 ( Seong Wock Lee )
발행기관
한국분무공학회
간행물정보
한국분무공학회지(구 한국액체미립화학회지) 2012년, 제17권 제3호, 113~120페이지(총8페이지)
파일형식
51301248.pdf [무료 PDF 뷰어 다운로드]
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    영문초록
    It is being more serious problems that the pollutant and the greenhouse gas emitted from the internal combustion engines due to the increasing demand of automobiles. To counteract this, as one of the ways has been studied, GDI type engine, which is directly injected into the combustion chamber and burns by a spark ignition that chose the merits of both gasoline engine and diesel engine, was appeared. The combustion phenomena in this GDI engine is known to contribute to combustion stability, fuel consumption reduction and reductions of harmful substances of exhaust gas emission, when the fuel spray of atomization being favorable and the mixture formation being promoted. Accordingly, this study analyzed the affection of ambient temperature and fuel injection pressure to the fuel by investigate the visualization of combustion, combustion pressure and the characteristic of emission, by applying GDI system on the constant combustion chamber. As a result, as the fuel injection pressure increases, the fuel distribution in the combustion chamber becomes uniform due to the increase of penetration and atomization. And when ambient temperatures in the combustion chamber become increase, the fuel evaporation rate being high but the penetration was reduced due to the reduction of volume flux, and confirmed that the optimized fuel injection strategy is highly needed.
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