Journal of ILASS-Korea (한국분무공학회지)

Institute for Liquid Atomization and Spray Systems-Korea (한국분무공학회)
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A Study on Flow Characteristics of Spark-Ignited Engine with Variable Intake Valve Closing Timing for Miller Cycle

LIVC 적용 밀러사이클 스파크점화기관의 유동특성 연구

  • 정진호 (숭실대학교 대학원 기계공학과) ;
  • 강선제 (숭실대학교 대학원 기계공학과) ;
  • 김진수 (숭실대학교 대학원 기계공학과) ;
  • 정석철 (숭실대학교 대학원 기계공학과) ;
  • 이진욱 (숭실대학교 대학원 기계공학과)
  • Received : 2016.01.12
  • Accepted : 2016.02.24
  • Published : 2016.03.31
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Abstract

In this study, to research in-cylinder flow characteristics of spark-ignited engine with intake valve closing timing change for Miller cycle. 3D simulation study were used 6 different intake valve profile with $CAD10^{\circ}$ gap for retard intake valve closing timing. Comparison of In-cylinder flow pattern characteristic were accompanied between Base and LIVC. And the efficiency of volume and the work of compression were analyzed with simulation study. When intake valve closing angle was retarded in $CAD50^{\circ}$, the pressure in cylinder was decreased about 12~13 bar and volume efficiency was reduced about 16%. The efficiency of volume and the work of compression were reduced on LIVC.

Keywords

References

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