某型发动机涡轮导向器排气面积改善研究  

Study on Improvement of Exhaust Area of Turbine Guide of a Certain Wngine

作　　者：李成刚 Li Chenggang(AECC Aero Science and Technology Co.,Ltd.,Chengdu Sichuan 610503,China)

机构地区：[1]中国航发航空科技股份有限公司,四川成都610503

出　　处：《机械管理开发》2025年第3期9-11,共3页Mechanical Management and Development

摘　　要：某型发动机涡轮导向器经常存在排气面积不合格情况,经分析涡轮导向器的排气面积与叶片的叶型喉道长度、安装角及叶型轮廓度有关,以该型发动机的低压Ⅰ级导向器叶片为例,通过对叶片的叶型喉道、安装角在公差范围内进行调控,改变涡轮导向器的叶栅的最小流通截面面积,使排气面积合格,为后续发动机涡轮导向器排气面积问题的分析、处理及提升排气面积合格率提供了借鉴。The exhaust area of turbine guide of a certain type of engine is often unqualified.after analyzing that the exhaust area of turbine guide is related to the length of blade throat.installation angle and profile of blade,this paper takes the low-pressureⅠstage guide blade of this type of engine as an example,and regulates the blade throat and installation angle of blade within tolerance.changing the minimum flow section area of turbine guide's cascade can make the exhaust area qualified,which provides referential significance for the analysis,treatment and qualification rate of the exhaust area of het turbine guide in the following years.

关 键 词：排气面积 喉道长度 叶型轮廓度 安装角 

分 类 号：V263.6[航空宇航科学与技术—航空宇航制造工程]