某小型航空发动机活塞烧顶失效分析及其解决方案  

Analysis on a small aircraft engine piston crown ablation failure and its solution

作　　者：孙振起[1] 伍泽全 吴安如[1] 陈蓉[1] 董丽君[1] Sun Zhenqi;Wu Zequan;Wu Anru;Chen Rong;Dong Lijun(School of Mechanical Engineering,Hunan Institute of Engineering,Xiangtan,Hunan,411101;Cloud Intelligence Vehicle Limited Company,Changsha,Hunan,410000)

机构地区：[1]湖南工程学院机械学院,湖南湘潭411101 [2]长沙云智航科技有限公司,湖南长沙410000

出　　处：《湖南工业职业技术学院学报》2019年第1期1-3,共3页Journal of Hunan Industry Polytechnic

基　　金：湖南科技大学机械设备健康维护湖南省重点实验室开放基金(项目编号:09001015|E21616);湖南工程学院博士启动资金项目(项目编号:09001003|15007)

摘　　要：对某小型航空发动机进行技术改造后,试车几分钟就出现故障停机,拆解后发现活塞烧顶,并且活塞裙带处有磨损,借助电镜等技术手段对失效件进行技术分析,最终找出失效产生原因并经过技术改进,解决了活塞烧顶故障,发动机运行正常。After a small aircraft engine is technically improved, certain technical problem leads to engine shutting down after a few minutes of testing. Piston crown ablation is found after the engine was taken apart. At the same time, piston skirt is worn. The failure parts are examined with the technical means of electron microscope. Finally, the cause of failure is identified and the technical improvement is made to solve the piston ablation failure. The engine runs normally.

关 键 词：发动机故障 活塞烧顶 烧蚀 技术改造 

分 类 号：TK418[动力工程及工程热物理—动力机械及工程]