可贮存推进剂泵压式液体火箭发动机多次起动系统研究

在推力超过一定量级、任务时间较长的情况下,泵压式发动机比挤压式发动机具有明显的技术优势。从国内外上面级及重型空间飞行器推进系统的发展需求来看,均要求其主发动机具有多次起动工作的能力。针对采用可贮存推进剂的泵压式液体发动机多次起动需求,对几种可选的多次起动系统方案进行了比较分析,介绍了起动箱式起动系统的研究情况。

Study on the multi-start system of turbopump-fed rocket engine with storable propellants

For high level thrust requirement and long duration mission, the turbopump-fed rocket engine has more advantages than that of the pressure-fed rocket engine. To meet the need of the development of propulsion system for upper stage and heavy space vehicle, the engine should have the capability of multi-start. This paper aimed at the need for the multi-start capability of the storable propellant turbopump-fed rocket engine. Several different designs of the multi-start system were analyzed and efforts on the start-tank system development were described.