试验结果表明：在供油提前角、转速和负荷相同的情况下，燃用二甲醚时油管泵端和嘴端压力的上升和下降速度、压力峰值都比燃用柴油时低；
The results show that at the same fuel delivery advance angle, engine speed and load, the line peak pressure and rate of pressure increment and decrement of DME are lower than that of diesel fuel.
低中负荷水平下，阀门设置较低的升力系数和早期关闭泵损失减少，提高燃油经济性。
Under low to medium load levels, the valves are set for low lift and early closure to reduce pumping losses and improve fuel economy.
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