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通过试验,找出影响北京型机车柴油机的喷油泵、喷油器流量精度的主要因素,并相应采取了加强喷油器喷孔的加工工艺;提高喷油泵柱塞螺旋边的加工精度及螺旋导程的测量精度;改进试验台,提高试验台的测量精度;对喷油泵、喷油嘴进行流量分组等措施,从而提高了喷油泵、喷油嘴流量精度,减小了同一台柴油机各缸供油量流量差,保证在各种转速下均能供给各缸均匀的燃油。
Through experiments, the main factors which influence the precision of fuel injection pump and fuel injector of Beijing locomotive diesel locomotive are found, and the processing technology to enhance the nozzle injection of fuel injector is accordingly adopted. The processing precision and helical guide Improve the test bench to improve the measurement accuracy of the test stand; the flow rate of the injection pump, nozzle and other measures, thereby improving the injection pump, nozzle flow accuracy, reducing the same cylinder for each cylinder Fuel flow difference, to ensure that under all kinds of speed can supply each cylinder uniform fuel.