| 液氧／煤油发动机煤油预压涡轮泵技术 |
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| 引用本文： | 李向阳,王晓锋,宣统,苗旭升.液氧／煤油发动机煤油预压涡轮泵技术[J].火箭推进,2009,35(1):16-20. |
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| 作者姓名： | 李向阳 王晓锋 宣统 苗旭升 |
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| 作者单位： | 西安航天动力研究所,陕西,西安,710100 |
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| 摘 要： | 液氧／煤油发动机采用独立的预压涡轮泵装置可减小推进剂组元贮箱的增压和提高主泵的转速，从而提高主泵的效率并降低其结构质量。以煤油预压涡轮泵为例，阐述了预压泵结构特点、轴承冷却系统及轴向力平衡装置。为提高预压泵的抗汽蚀性能和扬程．提出了变螺距变轮毂诱导轮方案，分析了流量系数、螺距及轮毂形状，并对诱导轮内流场进行了数值模拟，获得了其内部流场结构。水力试验结果表明，煤油预压泵性能稳定．在预压泵额定流量下，可使煤油主泵的入口压力提高约0．4MPa，与设计值相符。
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| 关 键 词： | 液氧／煤油发动机 煤油预压涡轮泵 诱导轮 数值模拟 |
Techniques of kerosene booster turbopump for LOX/kerosene staged combustion cycle engine |
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| Li Xiangyang,Wang Xiaofeng,Xuan Tong,Miao Xusheng.Techniques of kerosene booster turbopump for LOX/kerosene staged combustion cycle engine[J].Journal of Rocket Propulsion,2009,35(1):16-20. |
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| Authors: | Li Xiangyang Wang Xiaofeng Xuan Tong Miao Xusheng |
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| Institution: | Xi'an Aerospace Propulsion Institute;Xi'an 710100;China |
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| Abstract: | High efficiency and mass performance of the fuel main pump for LOX/kerosene en- gine can be obtained by the use of the individual booster turbopump (BTP) assembly, which also be good to reduce the propellant pressurization requirement and increase the main pump shaft speed. As a example for kerosene BTP, the technique approach, bearing cooling system and axial balancing system were presented. The booster pump inducer design with variable screw-pitch and hub was suggested to improve the cavitation performanc... |
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| Keywords: | LOX/kerosene engine booster turbopump inducer numerical simulation |
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