한국연소학회:학술대회논문집

The Korean Society of Combustion (한국연소학회)
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Effect of Ultra-high Injection Pressure on Combustion and Emission Characteristics in a Single-cylinder Diesel Engine

초고압 분사 압력 적용에 따른 단기통 디젤 엔진에서의 연소 및 배기 특성에 관한 연구

  • 조원규 (한국과학기술원 기계공학과) ;
  • 강승우 (한국과학기술원 기계공학과) ;
  • 배충식 (한국과학기술원 기계공학과) ;
  • 김영호 (현대자동차 선행디젤엔진개발팀)
  • Published : 2015.12.10
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Abstract

Experimental study was conducted to investigate the effect of ultra-high injection pressure on combustion and emission characteristics in a single-cylinder diesel engine. Electronically controlled ultra-high pressure fuel injection system consistently supplied the fuel of ultra-high pressure up to 250 MPa. Various injection pressures, 40 to 250 MPa, were applied and compared. A injector with eight identical nozzle holes which have diameter of $105{\mu}m$ was used. The results showed high potential to improve the nitrogen oxide (NOx) and particulate matter (PM) trade-off relationship with an ultra-high injection pressure and the exhaust gas recirculation (EGR).

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