液氧甲烷发动机重复使用关键技术发展研究  

Development Study of Key Reusable Technology for LOX/Methane Engine

作　　者：郑大勇[1,2] 颜勇[2] 孙纪国[2] Zheng Da-yong;Yan Yong;Sun Ji-guo(Nanjing University of Aeronautics and Astronautics,Nanjing,210016;Beijing Aerospace Propulsion Institute,Beijing,100076)

机构地区：[1]南京航空航天大学,南京210016 [2]北京航天动力研究所,北京100076

出　　处：《导弹与航天运载技术》2018年第2期31-35,共5页Missiles and Space Vehicles

摘　　要：重复使用运载器对动力系统的安全性、可靠性、使用成本等方面提出很高要求。液氧甲烷发动机重复使用性好、使用维护方便、性能高,综合性能良好,是重复使用运载器推进系统的理想选择之一。分析了液氧甲烷发动机的技术特点与优势,介绍了中国为重复使用飞行器研制的60吨级低成本、高可靠液氧甲烷发动机关键技术研究情况。通过试验研究,验证了液氧甲烷火箭动力具有良好的性能、高可靠性与多次重复使用能力。The major propulsion system objective of reusable launch vehicle(RLV)are significant improvements in vehicle safety,reliability,and operational costs.LOX/methane engine is an optimum choice of reusable launch vehicles because of relatively low cost,high performance,as well as lifetime and related potential of reusability.The advantage characteristic of LOX/methane engine is analyzed.A 60-ton LOX/methane reusable engine has been developed as a low cost and high reliability booster for Chinese future reusable launch vehicles.A number of experiments at subscale level or sub-systems are conducted to study and evaluate LOX/methane gas-liquid and liquid-liquid injection combustion performance,combustion instability and methane cooling characteristics,thermo-mechanical behavior,and etc,and the moderate erformance,high reliability and reusability of LOX/methane engine are well demonstrated.

关 键 词：重复使用运载器 液氧甲烷发动机 重复使用 

分 类 号：V47[航空宇航科学与技术—飞行器设计]