中小功率运输式柴油机在国民经济各部门应用极为广泛,又消耗大量动力燃料,降低这类柴油机的能耗水平,具有重大的经济效益。目前大量文献着重论述改善柴油机工作过程以便降低燃油消耗,但对于机械效率问题谈及不足。本文结合我们所做的工作,从提高机械效率入手论述节约柴油机能耗的潜力。 Small and medium-power transport diesel engines in various sectors of the national economy is extremely widely used, but also consume a large amount of motor fuel, reducing the level of energy consumption of such diesel engines, with significant economic benefits. At present, a large number of literatures focus on improving the working process of diesel engines in order to reduce fuel consumption, but do not talk about the issue of mechanical efficiency. Based on the work we have done, this paper discusses the potential of saving energy consumption of diesel engines from the perspective of improving mechanical efficiency.