Transactions of the Korean hydrogen and new energy society (한국수소및신에너지학회논문집)

The Korean Hydrogen and New Energy Society (한국수소및신에너지학회)
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A Investigation of Back Fire Control with Valve Overlap Period Change In the Same Supply Energy

동일열량공급하의 밸브오버랩기간 변화에 대한 역화억제 검토

  • Kang, J.K. (Grad. School of Sungkyunkwan Univ.) ;
  • Huynh, Thanh Cong (Grad. School of Sungkyunkwan Univ.) ;
  • Noh, K.C. (School of Mechanical Engineering, Sungkyunkwan Univ.) ;
  • Lee, J.T. (School of Mechanical Engineering, Sungkyunkwan Univ.)
  • 강준경 (성균관대학교 대학원) ;
  • ;
  • 노기철 (성균관대학교 기계공학부) ;
  • 이종태 (성균관대학교 기계공학부)
  • Published : 2007.09.15
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Abstract

To grasp a feasibility of back fire control by valve overlap period, back fire limit equivalence ratio was estimated with valve overlap period which has the same supply energy and positive intake pressure as valve overlap period $300^{\circ}\;CA$. As the result, it was shown that the smaller valve overlap period has the higher back fire limit equivalence ratio under valve overlap period $300^{\circ}\;CA$ as well as VOP $0^{\circ}\;CA$. This result means that expansion of back fire equivalence ratio by decreasing valve overlap period was caused by decrease of back flow duration of flame from in-cylinder to intake port than decrease of lower supply energy.

Keywords

References

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