摘要
针对PA6B柴油机进排气阀断裂故障,根据现场勘验情况并结合该柴油机当时的热工参数,建立相应的故障树;对制造质量、装配质量、配气定时、异物进入、热工参数等因素进行逐一排查。结果表明:导致PA6B柴油机进排气阀断裂的原因为喷油器制造质量存在问题。
Aiming at the fracture failure of the intake&exhaust valves on a PA6B diesel engine,based on the on-site inspection results and the thermal parameters at that moment,fault tree was built up.The factors which may cause the failure was investigated,including manufacturing quality,assembly quality,distribution timing,foreign particles entry and the thermal parameters.The results show that the manufactu-ring quality of injector was the reason that caused the fracture of exhaust valve on the PA6B diesel engine.
作者
赵建平
窦振寰
秦军红
王江坤
Zhao Jianping;Dou Zhenhuan;Qin Junhong;Wang Jiangkun(Shaanxi Diesel Heavy Industry Co.,Ltd.,Shaanxi Xingping 713105)
出处
《柴油机》
2020年第1期53-55,60,共4页
Diesel Engine
关键词
柴油机
气阀
断裂
喷油器
diesel engine
air valve
fracture
injector
作者简介
赵建平(1962-),研究员,主要研究方向为柴油机设计及改进,940759086@qq.com。
