为了满足新研航空发动机引气系统飞行试验的需要,设计了发动机引气加载系统。文章介绍了引气加载系统设计的技术难点、系统组成、流量精确测量和控制原理及发动机引气试验,并根据试验结果对系统进行评价。试验证明,设计的引气加载系统控制精确,满足被试发动机引气系统飞行试验的要求。 In order to meet the need of flight test of air intake system of newly-researched aeroengine, engine bleed air loading system was designed. This paper introduces the technical difficulties, system components, precise measurement and control of the bleed air system and the engine bleed air test, and evaluates the system according to the test results. The test proves that the design of the bleed air loading system is controlled accurately and meets the requirements of the flight test of the bleed air system of the tested engine.