Advanced technology for space shuttle auxiliary propellant valves

  title={Advanced technology for space shuttle auxiliary propellant valves},
  author={H. P. Wichmann},
Propellant shutoff valves required for the operation of the pulse modulated gaseous hydrogen/gaseous oxygen rocket engines for the Space Shuttle Auxiliary Propulsion System are specified to operate for one million cycles over a ten-year period with zero maintenance, very fast response, very low leakage, and over a wide temperature range. Based on an analytical leakage and wear model, sealing configurations were conceived, sized, and developed. Two prototype valves featuring different components… CONTINUE READING

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