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在乡下检查机务的过程中,经常遇到195型柴油机起动困难的故障。据我们调查,这一地区有些机手误将125系列柴油机上通用的ZS_(15)—S_(15)型喷油器当作195型柴油机上的ZS_4S_1型喷油器用,因而导致195型柴油机起动困难。这两种型号的喷油器虽然外表一样,喷油压力也都是125公斤力/厘米~2,但喷油孔直径和雾化锥角却完全不同。ZS_(15)—S_(15)型喷油器的喷孔直径为1.5毫米,雾锥角为15°,而ZS_4S_1型喷油器的唢孔直径为1毫米,雾锥角为4°。195型柴油机为了
Check the maintenance of the process in the country, often encountered 195 diesel engine starting difficulties. According to our investigation, some locomotives in this area incorrectly used the ZS_ (15) -S_ (15) type injector common to the 125 series diesel engines as the ZS_4S_1 type injector on the 195 type diesel engine, thus causing the 195 type diesel engine to start difficult. Although these two models of injector looks the same, the injection pressure is also 125 kgf / cm ~ 2, but the spray hole diameter and spray cone angle is completely different. The nozzle diameter of ZS_ (15) -S_ (15) injector is 1.5 mm and the cone angle is 15 °. The counterbore diameter of ZS_4S_1 injector is 1 mm and the cone angle is 4 °. 195 diesel engine in order