한국소음진동공학회:학술대회논문집 (Proceedings of the Korean Society for Noise and Vibration Engineering Conference)

한국소음진동공학회 (The Korean Society for Noise and Vibration Engineering)
권호 표지

승용 디젤엔진의 EGR과 Induction위치에 따른 소음 영향

The Effects of EGR and EGR Induction Point on Combustion Noise of a Passenger Diesel Vehicle

  • 강상규 (현대자동차 연구개발본부) ;
  • 김재헌 (현대자동차 연구개발본부) ;
  • 백성남 (현대자동차 연구개발본부) ;
  • 강구태 (현대자동차 연구개발본부)
  • 발행 : 2007.11.15
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초록

EGR is well established and efficient means to reduce NOx emissions. The increase of EGR rate affects the ignition delay of the combustion due to the lower oxygen availability. The increasing of the ignition delay period causes large combustion noise. In this study, the effects of EGR and Induction Point on combustion noise are investigated by measuring cylinder pressure and noise. As a result, The Combustion noise is markedly increased under the application of EGR. The increased premixed distance by displacing EGR Induction point in flow direction causes the uniform EGR distribution and the modulation level of the combustion noise is reduced slightly.

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