根据喷油压力波形特征判断燃油喷射装置故障部位

Fault location for fuel injection device according to waveform characteristic of injection pressure

通过ZB 2型柴油机燃油喷射系统故障诊断仪 (即柴油机燃油压力波检测仪 )对DF4 型机车柴油机燃油压力波的检测 ,在对大量检测事例进行跟踪、统计、分析的基础上 ,揭示出燃油压力波的检测波形与该缸喷射装置质量状态的对应关系 ,并据此确定故障部位 ,为故障处理提供参考。

It reveals the corresponding relation between the detecting waveform and the quality condition of injection device, based on the detecting for fuel pressure waveform of DF_4 locomotive's engine with ZB-2 diagnostic instrument for diesel engine fuel injection system and tracking, censusing and analyzing for so many detecting cases.And thus the fault can be located.