Journal of ILASS-Korea (한국분무공학회지)

Institute for Liquid Atomization and Spray Systems-Korea (한국분무공학회)
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Performance Analysis of Variable Valve for Diesel Engine with Cam-in-Cam System

디젤엔진용 Cam-in-Cam시스템 적용 가변밸브 성능해석

  • 정석철 (숭실대학교 대학원 기계공학과) ;
  • 박정민 (숭실대학교 대학원 기계공학과) ;
  • 김탁규 (숭실대학교 대학원 기계공학과) ;
  • 이진욱 (숭실대학교 기계공학과)
  • Received : 2017.01.23
  • Accepted : 2017.03.06
  • Published : 2017.03.31
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Abstract

In this study, the effects of intake valve closing timing by using Cam-in-Cam system on combustion and emission characteristics for diesel engine were investigated under GT-POWER simulation environment. As a result, it was found that volumetric efficiency and effective compression ratio were decreased as the intake valve closing(IVC) timing is retarded due to its backflow effect. Also, we found that in-cylinder pressure, heat release rate and NOx emission were decreased as IVC timing was retarded. These show that the LIVC(late intake valve closing) can be effective to control AFR and mixing rate in diffusion combustion of diesel engine.

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References

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