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Cryogenic Propulsion StageThe CPS is an in-space cryogenic propulsive stage based largely on state of the practice design for launch vehicle upper stages. However, unlike conventional propulsive stages, it also contains power generation and thermal control systems to limit the loss of liquid hydrogen and oxygen due to boil-off during extended in-space storage. The CPS provides the necessary (Delta)V for rapid transfer of in-space elements to their destinations or staging points (i.e., E-M L1). The CPS is designed around a block upgrade strategy to provide maximum mission/architecture flexibility. Block 1 CPS: Short duration flight times (hours), passive cryo fluid management. Block 2 CPS: Long duration flight times (days/weeks/months), active and passive cryo fluid management.
Document ID
Document Type
Jones, David (NASA Marshall Space Flight Center Huntsville, AL, United States)
Date Acquired
August 25, 2013
Publication Date
August 5, 2011
Subject Category
Spacecraft Propulsion and Power
Report/Patent Number
Meeting Information
Cryogenic Propulsion Stage(Huntsville, AL)
Distribution Limits
Work of the US Gov. Public Use Permitted.

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NameType 20110015783.pdf STI