某型飞机左右发动机T_(4)温差大问题研究

Research on the Large Difference in Gas Temperature T_(4) between Left and Right Engines of a Certain Type of Aircraft

从发动机参数调整、发动机油门操纵系统调整、涡轮后燃气温度T_(4)测量系统、发动机冷却系统、环控引气系统、进气道差异、飞行姿态和飞行大气等方面,分析了左右发动机T_(4)温度差值大原因,从发动机与飞机设计改进、T_(4)测量系统的误差标定,以及飞机飞行、调整与维护方面,提出了左右发动机T_(4)温度差值大的具体解决措施,对飞机与发动机的设计、调整与维护,有一定借鉴作用。

The article analyzes the reason of large differences in gas temperature T_(4)of the left and right engine turbines from the aspects of engine parameter adjustment,engine throttle control system adjustment,g as temperature T_(4)measurement system after turbine,engine cooling system,aircraft environmental control bleed air system,the difference in gas inlets of aircraft,flight attitude and flight atmosphere,etc.The specific solutions for the large difference in gas temperature T_(4)between the left and right engine are provided with engine and aircraft design improvement,T_(4)measurement system error calibration,and aircraft flight,adjustment and maintenance.It has a certain reference for the design,adjustment and maintenance of aircraft and its engine.