Pulsed combustion jet ignition in lean mixtures

Eiichi Murase, S. Ono, K. Hanada, Antoni K. Oppenheim

研究成果: 会議への寄与タイプ学会誌査読

42 被引用数 (Scopus)


Lean-burn is the most attractive way to lower emissions of NOx while improving the fuel consumption simultaneously in spark ignition engines. A Pulsed Combustion Jet (PCJ) ignition system has a great potential to enhance ignition reliability and burning rate of lean fuel-air mixtures. Its action is based on the utilization of turbulent plumes formed by jets produced by generators, in the shape and size of an ordinary spark plug, that embody a small (500 mm3 or less) cavity, capped with an orifice plate and outfitted with a hollow electrode. Performance characteristics of PCJ were established by combustion tests carried out in a diskshaped, constant volume combustion chamber using lean methane-air mixtures. The results were compared to those obtained with Pulsed Plasma Jet (PPJ) an standard spark plug ignition systems. Lean limit was extended most by PCJ ignition under both quiescent and swirl conditions. In the case of swirl, it was revealed that the flame holding in the region of maximum swirl velocity was of prime significance in enhancing the combustion rate. In PCJ, the jet plume ejected from the orifice of the generator displayed a similar flame-holding effect, yielding good performance characteristics.

出版ステータス出版済み - 12月 1 1994
イベントFuels and Lubricants Meeting and Exposition - Baltimore, MD, 米国
継続期間: 10月 17 198410月 20 1984


その他Fuels and Lubricants Meeting and Exposition
CityBaltimore, MD

!!!All Science Journal Classification (ASJC) codes

  • 自動車工学
  • 安全性、リスク、信頼性、品質管理
  • 汚染
  • 産業および生産工学


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