针对航空发动机喷油杆的几种方案进行了流量特性试验研究,分析了并论证微小孔孔径对流量特性的影响,为发动机的喷油杆的方案设计及技术改进提供了重要依据。 Several schemes of aerojet fuel injection rod were studied and their flow characteristics were studied. The influence of micro aperture on flow characteristics was analyzed and proved, which provided an important basis for the design of the fuel injection rod and the technical improvement of the engine.