吉林大学学报(工学版) ›› 2002, Vol. ›› Issue (4): 7-11.

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Judgement of Lean Burn Limit for SI Engine Using LPG

WANG Zhen-suo1, DENG Bao-qing1, LI Li-guang2, XIAO Zong-cheng1, WANG Hui-ping1   

  1. 1. College of Automobile Engineering, Jilin University, Changchun 130025, China;
    2. College of Mechanical and Power Engineering, Shanghai Jiaotong University, Shanghai 200030, China
  • Received:2002-05-28

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Abstract: Definition and the selection of lean burn limit in small SI LPG engine is studied.Test results show that fluctuation of torque output and engine speed,HC emission and its rise ratio are all affected by excess air ratio.Change of those parameters appears to have similar trend versus excess air ratio except fluctuation of engine speed which is not prominent.It is found that the HC emission level is invalid to use as a judgment criterion for lean burn limit.Fluctuation of torque output and rising ratio of HC emission are sensitive to excess air ratio to be selected as parameters to judge LPG engine lean burn limit.

Key words: LPG, SI engine, judgement of lean burn limit

CLC Number: 

  • TK464
[1] Quader A A.What limits lean operation in spark ignition engines-flame initiation or propagation［A］.SAE Paper 760760［C］,1976.
[2] Quader A A.Lean combustion and the misfire limit in spark ignition engines［A］.SAE Paper 741055［C］,1974.
[3] Heywood J B.Internal combustion engine fundamentals［M］.McGraw-Hill,New York,NY,1988.
[4] John T Kubesh.Lean limit and performance improvements for a heavy-duty natural gas engine［A］.SAE Paper 961939［C］.1996.
[5] 王振锁.LPG发动机稀薄燃烧研究［D］.长春:吉林大学汽车工程学院,2000.
[6] 王振锁.LPG用于小型点燃式发动机的性能优化与稀薄燃烧［J］.吉林大学学报(工学版),2002,32(1):17～22
[7] Zabetakis M J.Flammability characteristics of combustible gases and vapors［Z］.Bulletin 627,Bureau of Mines,1965.
[8] 李兴虎.丙烷发动机燃烧变动研究［J］.内燃机学报,1999(1):71～74.
[9] Kiyoshi Ishii.Investigation of cyclic variation of IMEP inder lean burn operation in spark-ignition engine［A］.SAE Paper 972830［C］,1997.
[10] Ryan T W.Extension of the lean misfire limit and reduction of exhaust emissions of an SI engine by modification of the ignition and intake systems［A］.SAE Paper 740105［C］,1974.
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