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Techniques of kerosene booster turbopump for LOX／kerosene staged combustion cycle engine(PDF)

《火箭推进》[ISSN:1672-9374/CN:CN 61-1436/V]

Issue:
2009年01期
Page:
16-20
Research Field:
研究与设计
Publishing date:

Info

Title:
Techniques of kerosene booster turbopump for LOX／kerosene staged combustion cycle engine
Author(s):
Li Xiangyang; Wang Xiaofeng; Xuan Tong; Miao Xusheng
Xi'an Aerospace Propulsion Institute，Xi 'an 7 1 0 1 00，China
Keywords:
LOX／kerosene engine; booster turbopump; inducer; numerical simulation
PACS:
V434.2
DOI:
-
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 performance and head rise characteristics．The influence of flow coefficient，pitch and hub shape was analyzed with the inner flow field of the inducer by the numerical simulation．The hydraulic test results indicated that the kerosene BTP has stable performance maps with pressure head 0．4MPa increment for the main pump inlet pressure and also agree well with the design．

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Last Update: 1900-01-01