为了同时减少NOx,和颗粒排放，利用数值模拟、发动机试验和燃烧观察的方法对一种新的柴油机燃烧概念进行了研究。这种概念是以多次喷射预混合燃烧为基础的，并在装有共轨式喷油系统的单缸机上进行了试验。试验结果表明，这种概念在喷油定时推迟相当大和NOx排放极低的区域同时具有低燃油消耗率和低烟度排放。 In order to reduce NOx and particulate emissions at the same time, a new diesel combustion concept was studied by means of numerical simulation, engine test and combustion observation. This concept is based on multiple injection premixed combustion and is tested on a single cylinder with a common rail injection system. The experimental results show that this concept has low fuel consumption and low-smoke emissions at the same time when injection timing is delayed considerably and areas with very low NOx emissions.