Cryogenic Flow Valve System
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United States of America Patent
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Issued Date -
Oct 2, 2008
app pub date -
Sep 20, 2005
filing date -
Sep 22, 2004
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A cryogenic flow valve system for controlling the flow of a cryogenic fluid is disclosed. The system has a valve and an adsorption pump. The valve includes a flow chamber and a moveable member. The cryogenic fluid flows the flow chamber, and the moveable member is in contact with a control fluid. The position of the moveable member controls the flow in the flow chamber. The pressure of the control fluid controls the position of the moveable member. The adsorption pump includes a chamber and a heater. The chamber is in contact with the moveable member and contains an adsorption material for retaining control fluid. The heater heats the adsorption material to control the pressure of the control fluid.
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