Abstract

点火による初期火炎核形成から定常火炎伝播に至る過程は火花点火機関の燃焼変動に影響する.近年では従来燃料にフラン類を混合すると希薄限界が改善されることが報告されているが,その過程については十分明らかでない.本研究では定容容器内に充填した予混合気をレーザ点火で着火させ,火炎核の成長過程を撮影した.それらの結果から燃料種が火炎核成長過程に及ぼす影響を考察した.

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