用单缸机对 GE—7FDL 机车柴油机燃用煤水浆的可行性进行了为期3年的试验研究。详细研究了燃料的发火、燃烧情况。试验表明,在具有合适的燃料喷射装置的正常发动机运转情况下,煤水浆燃料可以顺利发火并能充分发挥发动机功率。其燃料消耗率可以比得上烧柴油的发动机。并且,NO_x 和 CO 排放量较少。正如所料,喷油器、活塞环和气缸套采用标准材料磨损过快。然而,当采用试验台试验选出的硬化材料,则磨损特性明显改进。若经过进一步努力,燃用煤水浆的发动机耐久性有可能比得上通常烧柴油的发动机。 A three-year pilot study was conducted on the feasibility of coal-water slurry on a GE-7FDL locomotive diesel engine using a single-cylinder engine. A detailed study of the fuel firing, burning situation. Experiments have shown that under normal engine operation with a suitable fuel injection device, coal-water slurry fuel can ignite smoothly and give full play to engine power. The fuel consumption rate comparable to the diesel engine. And, NO_x and CO emissions less. As expected, injectors, piston rings and cylinder liners wear out with standard materials. However, the wear characteristics were significantly improved when using hardened materials selected from bench tests. With further efforts, the durability of engines that use coal slurry may be comparable to that of diesel-burning engines.