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COMPACT LIQUID NITROGEN PUMP

United States Patent Application

20160061384
A1
View the Complete Application at the US Patent & Trademark Office
The invention provides a cryogenic liquid pump system, having a first end with at least an insulating lid and motor; a second end, wherein the second end is a pump, said pump comprising an impeller; and a gas release plate upstream of the impeller; and a shaft disposed between the first end and the second end, wherein the motor imparts mechanical energy to the pump through the shaft. Also provided is a method for preventing cavitation of a cryogenic liquid in a cryogenic pump, the method having the steps of constantly maintaining pressure on the liquid in the pump and evacuating gas bubbles that form within the pump.
Caldwell, Shane A. (Chicago, IL), Li, Gang (Ontario, CA)
UCHICAGO ARGONNE, LLC (Chicago IL)
14/ 476,443
September 3, 2014
CONTRACTUAL ORIGIN OF THE INVENTION [0001] The U.S. Government has rights in this invention pursuant to Contract No. DE-AC02-06H11357 between the U.S. Department of Energy and UChicago Argonne, LLC, representing Argonne National Laboratory.