Refrigeration – Storage of solidified or liquified gas – Including cryostat
Patent
1995-09-07
1997-01-07
Capossela, Ronald C.
Refrigeration
Storage of solidified or liquified gas
Including cryostat
62258, 454188, F25B 1900
Patent
active
055905374
ABSTRACT:
An apparatus to provide a laminar curtain of dry gas over a cryogenic working surface includes a housing duct extending longitudinally from the working surface. A honeycomb member fills a section of the duct adjacent to the working surface, each honeycomb cell having a through channel in the longitudinal direction. A porous foam with through porosity fills a section of the duct adjacent to the honeycomb member oppositely from the working surface. A plenum is adjacent to the porous member oppositely from the honeycomb. Dry gas is supplied to the plenum to flow through the foam and honeycomb to effect the laminar curtain.
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patent: 5105628 (1992-04-01), Nakai
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"Aerodynamic Characteristics of Damping Screens" by G. B. Schubauer, W. G. Spangeberg & P. S. Klebanoff, National Adv. Committee for Aeronautics (NACA) TN 2001 (Jan. 1950).
"Subsonic Internal Aerodynamics", Pratt & Whitney Aircraft Florida Research & Development Center, PDS-3614, Sections J and K (May 4, 1970).
"Boundary-Layer Theory" by Herman Schlichting, transl. by J. Kestin, 6th ed., pp. 173-176, McGraw Hill (1955).
Capossela Ronald C.
Grimes Edwin T.
Ingham Herbert S.
The Perkin-Elmer Corporation
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