发动机燃烧室狭缝间隙处未燃碳氢生成的研究

在利用激光干涉法测量定容燃烧弹燃烧室狭缝间隙内未燃混合气热力状态参数的基础上，分析了不同狭缝间隙宽度下狭缝内未燃混合气双壁激冷厚度的变化规律，定量地计算了狭缝容积内未燃碳氢的生成量，这表明，狭缝间隙处未燃混合气的双壁激冷厚度不仅与狭缝宽度有关，也与未燃混合气在狭缝内所处未燃混合气的双壁激冷厚度不仅与狭缝宽度有关，也与未燃混合气在狭缝内所处的位置有关。

An Investigation on Unburned Hydrocarbon Formation in the Crevice of Combustion Chamber of Spark-Ignited Engines

On the basis of measurements of thermodynamic state parameters of unburned mixture in a crevice of combustion chamber by using laser intetferometry, the variation of wall-to-wall quench distances for different crevice width has been calculated quantitatively. It is shown that the wall-to-wall quench distance is not only relative to the crevice width but also to the position of the mixture in the crevice.