Objective to develop an unshrouded impeller design, which a meets the performance requirements of a 3-stage fuel pump with a 2-stage pump design, has been accomplished. Performance of the baseline unshrouded impeller has been experimentally verified. Unshrouded impeller trade study and final 6+6 unshrouded impeller configuration has been presented. Structurally viable, 6+6-impeller design concept has been produced. Based on results presented in this study, at a nominal 10% tip-clearance, the 6+6 impeller design would increase payload to orbit by almost 625 lbs. per engine. The RLV vehicle requires 7 engines, therefore, application of high head unshrouded technology would increase payload capability by as much as 4,375 lbs. per vehicle.


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    Title :

    High Head Unshrouded Impeller Pump Stage Technology



    Conference:

    Joint Propulsion ; 2000 ; Huntsville, AL, United States


    Publication date :

    2000-01-01


    Type of media :

    Preprint


    Type of material :

    No indication


    Language :

    English




    High Head Unshrouded Impeller Pump Stage Technology

    R. W. Williams / S. E. Skelley / E. T. Stewart et al. | NTIS | 2000


    High Head Unshrouded Impeller Pump Stage Technology

    R. W. Williams / S. E. Skelley / E. T. Stewart et al. | NTIS | 2000


    High head unshrouded impeller pump stage technology

    Williams, Robert / Skelley, Stephen / Stewart, Eric et al. | AIAA | 2000


    Unshrouded Impeller Technology Development Status

    A. R. Droege / R. W. Williams / R. Garcia | NTIS | 2000