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Effect of Injection Timing and Injector Hole Number on Emission Characteristics for Off-road Diesel Engine

비도로용 디젤엔진의 분사시기 및 인젝터 변경에 따른 배출가스 특성 연구

  • Received : 2014.02.20
  • Accepted : 2014.03.18
  • Published : 2014.06.30

Abstract

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.

Keywords

References

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