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  • 1
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    Development of advanced seals for space propulsion turbomachinery (1992)
    In:  CASI
    Details
    Publication Date: 2019-07-13
    Description: Current activities in seals for space propulsion turbomachinery that the NASA Lewis Research Center sponsors are surveyed. The overall objective is to provide the designer and researcher with the concepts and the data to control seal dynamics and leakage. Included in the program are low-leakage seals, such as the brush seal, the 'ceramic rope' seal, low-leakage seals for liquid oxygen turbopumps, face seals for two phase flow, and swirl brakes for stability. Two major efforts are summarized: a seal dynamics in rotating machinery and an effort in seal code development.
    Keywords: SPACECRAFT PROPULSION AND POWER
    Type: NASA-TM-105659 , E-7024 , NAS 1.15:105659 , 1992 Aerospace Atlantic International Conference and Exposition; Apr 06, 1992 - Apr 10, 1992; Dayton, OH; United States
    Format: application/pdf
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    NASA TECHNICAL REPORTS
  • 2
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    The NASA-OAST earth-to-orbit propulsion technology program - The action plan (1992)
    In:  Other Sources
    Details
    Publication Date: 2019-08-28
    Description: The paper discusses the primary objective of the NASA-OAST earth-to-orbit (ETO) propulsion technology program, namely, to completely overhaul the nation's liquid rocket design and analysis capabilities which were found to be severely limited when used for the design and development of the Space Shuttle Main Engine (SSME). Meeting this objective is to provide a much sounder, very comprehensive technology base that will enable the cost-effective low-risk development, acquisition, and operation of high-performance, expendable, or reusable ETO propulsion systems. This in turn will enable the future development of space transportation system launch vehicles with greatly reduced life-cycle costs. Work is carried out in three major areas: combustion devices, turbomachinery, and controls and health management.
    Keywords: SPACECRAFT PROPULSION AND POWER
    Type: AIAA PAPER 92-1478
    Format: text
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    NASA TECHNICAL REPORTS
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