关于一起CESSNA172机型发动机抖动典型故障分析  

Typical Fault Analysis of CESSNA172 Engine Vibration

作　　者：刘亚斌 Liu Ya-bin(Civil Aviation Flight University of China,Sichuan Mianyang 621000)

机构地区：[1]中国民航飞行学院绵阳分院,四川绵阳621000

出　　处：《内燃机与配件》2024年第20期66-68,共3页Internal Combustion Engine & Parts

摘　　要：点火电嘴挂油、积碳主要是长期过富油燃烧引起,其使磁电机中二级线圈感应电动势降低,电火花强度减弱。燃油分配器内蒸发析出杂质引起内部组件粘合,造成燃油分配不均,发动机工作不稳定。日常维护中,应加强点火系统及燃油系统检查,调整发动机参数到最佳状态,同时避免长时间地面慢车运转,减少故障发生。The hanging oil and carbon deposit of the plug are mainly caused by over-rich oil combustion in a long time,which will reduce the electromotive force of the secondary coil in the magneto and weaken the intensity of the electric spark generated by the plug.Impurities from the evaporation of fuel will glue the internal components,resulting in unstable engine operation.In daily maintenance,the ignition system and fuel system inspection should be strengthened,and the engine parameters should be adjusted to the best state,also the low-power run on the ground should be avoided to reduce the occurrence of failures.

关 键 词：172机型 发动机抖动 点火电嘴 燃油分配器 

分 类 号：V23[航空宇航科学与技术—航空宇航推进理论与工程]