摘要
25 tf膨胀循环氢氧发动机是针对我国重型运载火箭三级主动力需求研制的液体火箭发动机,也可应用于未来其他航天器的上面级。该发动机采用闭式膨胀循环方式,具备高可靠、高比冲、大范围变推力以及多次点火等能力。发动机已通过推力室挤压热试验、氢涡轮泵介质试验等子系统试验验证了各项关键技术及组合件设计方案,发动机的整机方案实现已不存在技术障碍,具备对整机技术方案开展热试车试验验证的条件。
The 25 tf LOX/LH_(2) expander cycle engine was developed for the three stage propulsion engine of China's heavy launch vehicle,which can also offer potential applications on various future launcher upper stages as well as orbital spacecrafts.The engine is a closed expander-cycle engine,and has the capabilities of high reliability,high specific impulse,variable thrust and multiple ignition.The engine has completed subsystem tests such as chamber,LH_(2) turbopump.The conditions for whole engine hot test have been met.
作者
褚宝鑫
赵海龙
陈旭扬
龚杰峰
CHU Baoxin;ZHAO Hailong;CHEN Xuyang;GONG Jiefeng(Beijing Aerospace Propulsion Institute, Beijing 100076, China)
出处
《火箭推进》
CAS
2022年第2期21-26,共6页
Journal of Rocket Propulsion
关键词
火箭发动机
膨胀循环
重型运载火箭
多次点火
变推力
rocket engine
expander cycle
heavy launch vehicle
multiple ignition
variable thrust
