前功率输出式涡轴发动机涡轮结构布局改进

Improvement of Turbine Structure for Turboshaft Engine with Front Output Shaft

本文介绍了国外前功率输出式涡轴发动机的主要涡轮结构布局形式,针对国内研制的前功率输出式涡轴发动机功重比低、效率低、油耗大、可靠性不高的现状,提出了在涡轮结构设计中的改进思路,并对影响结构设计改进的关键技术进行了分析。

The main structure form of overseas turboshaft engine with front output shaft was introduced.Aiming to the problems of low power weight ratio,low efficiency and high specific fuel consumption for turboshaft engine with front output shaft in CAPI（China Aviation Powerplant Research Institute）,the improved directions on turbine structure design were presented,and the key technology which influences the improvement of turbine structure design was analyzed.