Liquefier with pressure-controlled liquefaction chamber
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United States of America Patent
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Jun 6, 2017
Grant Date -
Jan 17, 2013
app pub date -
Jul 16, 2012
filing date -
Jul 14, 2011
priority date (Note) -
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Abstract
A liquefier includes a Dewar having a storage portion and a neck portion extending therefrom. A hermetically isolated liquefaction chamber is disposed within the neck of the Dewar. One or more control components including a temperature and pressure sensor are coupled to a CPU and disposed within the liquefaction chamber for dynamic control of liquefaction conditions. A gas flow control is coupled to the CPU for regulating an input gas flow into the liquefaction chamber. A volume surrounding the liquefaction chamber may be adapted to provide a counter-flow heat exchange. These and other features provide improved liquefaction efficiency among other benefits.
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