液体火箭发动机涡轮泵系统多次启动的试验研究

为研制空间或高超声速机动飞行器的高空或空间多次点火启动工作推进系统,根据确定的推进系统主要技术要求,对长征火箭上面级发动机涡轮泵系统作适应性改进,进行了多次启动试验。试验结果表明,系统各次启动、稳态工作和关机正常,性能稳定,无漏液和漏水,试验参数匹配协调,并与理论分析结果一致。本文的改进方案可行。

Experimental Research of the Turbopump System Starts for Liquid Rocket Engine

For development of multi-start propulsion system for space or hyperSoar mobile vehicle,the turbopump system of upper stage engine for Changzheng launch vehicle was modified according to the major parameters determined,and the starts test was done in this paper.The test results showed that the each start-up,stable operation and shut-off of the test system were normal,which function was constant.The system had no liquid or water leakage.The parameters in test were matched and coordinated,which was coincided with theory values.The modified scheme was feasible.