Proposed design for seals in liquid-hydrogen plumbing eliminates leaks caused by contraction of seals at low operating temperature. Each seal consists of rubber, polytetrafluorethylene, or lead O-ring including hollow core filled with water. At temperature of liquid hydrogen, anomalous expansion of water keeps seal gland filled and leaktight despite shrinkage of surrounding O-ring material. Design also used in systems using cryogenic fluids other than liquid hydrogen.


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    Titel :

    Compensating For Shrinkage In A Cryogenic Seal


    Beteiligte:

    Erschienen in:

    Erscheinungsdatum :

    1993-07-01



    Medientyp :

    Sonstige


    Format :

    Keine Angabe


    Sprache :

    Englisch


    Schlagwörter :


    Compensating for Shrinkage in Machined Ceramics

    Aguilar, L. / Fitchett, B. T. | NTRS | 1986



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    Cryogenic Pressure Seal for Wires

    Ciana, J. J. | NTRS | 1984