Journal of ILASS-Korea (한국분무공학회지)

Institute for Liquid Atomization and Spray Systems-Korea (한국분무공학회)
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Study on Combustion Characteristics of Pre-combustion Chamber Type Diesel Engine with Different Throat Shape

예연소실식 디젤엔진의 분구 형상 변화에 따른 연소 특성 연구

  • 최종휘 (한양대학교 융합기계공학과) ;
  • 이승필 (한양대학교 융합기계공학과) ;
  • 박성욱 (한양대학교 기계공학부)
  • Received : 2017.03.18
  • Accepted : 2017.04.28
  • Published : 2017.09.30
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Abstract

Pre-combustion chamber type indirect diesel engines have different combustion characteristics compared with those of common rail direct injection engine. The CONVERGE, specific engine CFD program, was used to simulate hollow cone spray model and combustion. The air-fuel mixture flow propagating from pre-combustion chamber to cylinder was concentrated at top half and center of the pre-combustion chamber throat. Stronger mixture flow was formed at smaller and longer throat cases. As a result, thermal efficiency and fuel consumption were improved for modified throat shape and the soot emission was also reduced.

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References

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