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An evaluation of a hubless inducer and a full flow hydraulic turbine driven inducer boost pumpThe purpose of the study was to compare the performance of several configurations of hubless inducers with a hydrodynamically similar conventional inducer and to demonstrate the performance of a full flow hydraulic turbine driven inducer boost pump using these inducers. A boost pump of this type consists of an inducer connected to a hydraulic turbine with a high speed rotor located in between. All the flow passes through the inducer, rotor, and hydraulic turbine, then into the main pump. The rotor, which is attached to the main pump shaft, provides the input power to drive the hydraulic turbine which, in turn, drives the inducer. The inducer, rotating at a lower speed, develops the necessary head to prevent rotor cavitation. The rotor speed is consistent with present main engine liquid hydrogen pump designs and the overall boost pump head rise is sufficient to provide adequate main pump suction head. This system would have the potential for operating at lower liquid hydrogen tank pressures.
Document ID
19720005772
Acquisition Source
Legacy CDMS
Document Type
Contractor Report (CR)
Authors
Lindley, B. K.
(Aerojet Liquid Rocket Co. Sacramento, CA, United States)
Martinson, A. R.
(Aerojet Liquid Rocket Co. Sacramento, CA, United States)
Date Acquired
September 2, 2013
Publication Date
November 1, 1971
Subject Category
Machine Elements And Processes
Report/Patent Number
REPT-11218-F
NASA-CR-72995
Accession Number
72N13421
Funding Number(s)
CONTRACT_GRANT: NAS3-11218
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.
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