结果表明：与柴油相比，发动机燃用二甲醚时的喷油延迟期延长，滞燃期缩短，最高爆发压力和最大压力升高率均低于柴油机。
The results show that DME operation has longer injection delay, lower maximum cylinder pressure, lower ratio of pressure rise, shorter ignition delay in comparison with diesel operation.
二甲醚喷油延迟角比柴油大，最高爆发压力、最大压力升高率、燃烧噪声比柴油低；
Since the ignition delay of DME is shorter than that of diesel, thus makes the lower value of maximum cylinder pressure, maximum rate of pressure rise and combustion noise.
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