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1. 4, Report No. NASA CR-72995 I Title and Subtitle AN EVALUATION OF A HUBLESS INDUCER AND A FULL FLOW HYDRAULIC TURBINE DRIVEN INDUCER BOOST PUMP 7. Author(s) B, K. Lindley and A. R. Martinson 8. Performing Organization 10. Work Unit No, 11, Contract or Grant No. NAS3-I1218 Report No. 9. 12. 15. Performing Organization Name and Addre= Aerojet Liquid Rocket Company P.O. Box 13222 Sacramento, California 95813 S_nsoring Agency Name and Address National Aeronautics and Space Administration Lewis Research Center Cleveland, Ohio _pplementary Notes 13. Type of Report and Period Covered Contractor Report 14. Sponsoring Agency Code ] 2. Government Acc_sion No. 3. Recipient's _talog No. 5.' Report Date October 1971 6, Performing Organization Code I1218-F Project Manager, W. A. Rostafinski, Liquid Rocket Technology Branch, NASA Lewis Research Center, Cleveland, Ohio 16. Abstract A study to investigate the characteristics of a hubless converging inducer was initiated in April 1968, redirected in September 1969, and completed in June 1971. The 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 a low speed 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. 17. Ke_ Wo_s(Suggested by Author(s)) Inaucers Hubless Converging Inducer Boost Pumps 19. Security Classif. (of this report) llnclass [fled 18. Dis_ibutio. Statement Unclassified 20. Security Classif. (of this page) Unclassified - unlimited 21. No. of Pages 22. Price"PDF Image | HUBLESS INDUCER FLOW HYDRAULIC TURBINE INDUCER BOOST PUMP
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