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叙述了直喷式柴油机内可控混合气不均匀燃烧的基本模型。 在一个定容、高压、高温罐内进行了喷注发展的基础研究。单根油注瞬时喷射为喷注混合方程式提供了数据。这些方程式应用于柴油机燃烧模型。 该模型是以油注的而不是以油滴的燃烧为基础的。叙述了由于燃油—空气混合而形成的“N”燃烧区域的扩展。还考虑到新鲜空气和未燃富混合物区域。把守恒方程式应用于这些区域,得到区域成分,温度和气缸压力。同时还进行了氧化氮的动力计算。 算出的气缸压力和排气中的NO总量,在发动机各种工况下与实测值极为相符。讨论了不同输入值对模型的敏感性。表明它可用来予估参数。提出了包括碳烟形成和碳氢化合物排放物模型的一套假想。
The basic model of non-uniform combustion of controllable mixture in direct injection diesel engine is described. In a constant volume, high pressure, high temperature tank injection development of basic research. Single Root Instantaneous Injection provides data for the mixed injection equation. These equations apply to diesel combustion models. The model is based on oil injection rather than on combustion of oil droplets. The expansion of the “N” combustion zone due to the fuel-air mixture is described. Also taking into account the fresh air and unburned rich mixture area. Applying the conservation equation to these areas yields the area composition, temperature, and cylinder pressure. At the same time also carried out the calculation of nitrogen oxide dynamics. The calculated cylinder pressure and the total amount of NO in the exhaust gas are in good agreement with the measured values under various engine operating conditions. The sensitivity of different input values to the model is discussed. Show that it can be used to estimate parameters. A set of hypotheses including soot formation and hydrocarbon emission models was proposed.