Recent performance concerns involving the Space Shuttle Main Engine Propellant Valve Actuator assemblies prompted the NASA Marshall Space Flight Center to request an independent design assessment. Moog Inc. responded to this request and received a study contract with objectives of increasing valve reliability, decreasing maintenance costs while preserving the existing design interfaces. The results of the Propellant Valve Actuation System review focus on contamination control and the bypass valve design. Three proof of concept bypass valves employing design changes were built and successfully tested. Test results are presented.


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    Title :

    Study of Hydraulic Actuation System for Space Shuttle Main Engine Propellant Valves


    Contributors:
    B. Ewel (author)

    Publication date :

    1993


    Size :

    71 pages


    Type of media :

    Report


    Type of material :

    No indication


    Language :

    English