姜晓东，刘立文，练兵

（上海普安柴油机有限公司，上海 200444）

摘要：针对某V型柴油发动机喷油泵齿轮断齿故障,分别从齿轮的材料、硬度、加工精度以及设计强度计算、装配工艺等方面进行检测和分析,并提出一系列的解决措施,最终查明喷油泵齿轮断齿的主要原因,并得到市场验证。

关键词：柴油机；喷油泵齿轮；断齿

    Abstract. For the gear tooth breakage failure existing in in the v-diesel engine fuel injection pump, the detection and analysis is conducted on its material, hardness, machining accuracy, design strengthens calculation and assembly process. The paper proposed  a serial solving measures and finally gives the reasons causing the failur.

Keywords：Diesel Engine；Fuel Injection Pump Gear；Tooth Breakage