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ＤＭＥ作为柴油机的引燃剂时，对其燃烧与排放特性进行了试验研究．该燃烧方式通过进气过程喷入一定量的ＤＭＥ燃料，形成均质的稀薄混合气，预混合气着火燃烧后再主喷柴油，实现预混合－主喷油燃烧方式，即燃烧过程中稀薄燃烧与扩散燃烧相结合．研究结果表明， ＤＭＥ预混合比例有一个最佳值，适当的预混合对发动机经济性、降低 ＮＯｘ和碳烟排放、改善燃烧噪声有明显效果．
DME as a diesel engine ignition agent, the combustion and emission characteristics of a pilot study. The combustion mode injects a certain amount of DME fuel through the intake process to form a homogeneous and lean mixture. After the premixed gas is ignited and burned, the main diesel fuel is injected to achieve the premixing-main injection combustion mode, that is, the lean combustion in the combustion process Combined with diffusion combustion. The results show that there is an optimum DME pre-mixing ratio. Appropriate pre-mixing has significant effect on engine economy, NOx and soot emissions, and combustion noise reduction.