某型涡轴发动机泵调节器低温供油不足问题研究  

Research on the Problem of Insufficient Fuel Supply at Low Temperature for a Turboshaft Engine Pump Regulator

作　　者：王博 郑恒斌 WANG Bo;ZHENG Hengbin(Military Representative Office of the Department of Naval Equipment in Changzhou,Changzhou 213000,Giina;Nanjing Light Aero-engine Co.,Ltd.,Nanjing 211100,China)

机构地区：[1]海军装备部驻常州地区军事代表室,江苏常州213000 [2]南京轻型航空动力有限公司,江苏南京211100

出　　处：《飞机设计》2020年第5期32-35,40,共5页Aircraft Design

摘　　要：针对某型涡轴发动机高空台试验中出现的-34℃低温条件下,泵调节器供油不足的问题开展了深入研究。通过排查与分析发现,这一问题由油针LVDT反馈位置信号改变和泵调节器停车活门低温密封泄漏所导致。针对上述问题,文中提出了修正油针位置偏差、改进停车活门格莱圈密封结构,以及提高活门配合精度的解决方案。结果表明,所提出的方案措施有效地解决了泵调节器低温供油不足的问题。This paper has carried out sufficient research on the problem of insufficient fuel supply at-34℃ in high altitude experiments for a turboshaft engine pump regulator.According to our consideration,this problem was mainly caused by the LVDT feedback signals of fuel measurement drift and the flame-out valve of engine pump regulator loose.Then,we proposed the solution method based on the deviation correction of LVDT signals,Glyd-ring structural improvement of flame-out valve and valve matching accuracy improvement.The results show that the proposed method can effectively solve this problem.

关 键 词：涡轴发动机 泵调节器 油针LVDT位置变化 停车活门密封泄漏 

分 类 号：V233.753[航空宇航科学与技术—航空宇航推进理论与工程]