Verfahren und Apparat zum Aufbewahren von kryogenen Flüssigkeiten.

摘要

Method and apparatus for preventing loss of liquid cryogen due to heat infiltration into the cryogen stored in a dewar. At least one transient heat shield (34) disposed in the vacuum space between the inner (12) and outer (14) vessels of the dewar in heat exchange with normal cryogenic liquid, cold gas, or supercritical fluid withdrawal means (22, 23) of the stored cryogen, intercepts heat transfer into the stored cryogen.