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비도로용 디젤엔진의 분사시기 및 인젝터 변경에 따른 배출가스 특성 연구
김훈명(Hoon Myung Kim),강정호(Jeong Ho Kang),한다혜(Da Hye Han),정학섭(Hak Sup Jung),표수강(Su Kang Pyo),안중규(Jueng Kyu Ahn) 한국연소학회 2014 한국연소학회지 Vol.19 No.2
Environmental regulations are being reinforced for the solution of environmental pollution, that are global issues. Exhaust gas regulations of off-road engines also demand stepwise reduction emission from beginning of Tier 4 interim(2013). Characteristically, Tier 4 regulation apply the NRTC mode which is a transient cycle. And technical studies using NRTC mode are uncommon. In this study, for satisfy the Tier 4 final regulation on the NRTC mode, experimental study was conducted using a 3.4 L off-road engine. Fuel injection timing and injector hole number are chosen as parameters for investigation of combustion and exhaust gas characteristics on off-road diesel engine.