Pumps – Combined
Patent
1994-08-09
1996-05-07
Freay, Charles
Pumps
Combined
417 53, 62 501, 62 506, F04B 3914, F17C 702
Patent
active
055139612
ABSTRACT:
A method and apparatus are disclosed for improving the available pump net positive suction head in a system for pumping liquid from a storage tank. When the liquid in the system is at or near its boiling point, a pump suction vessel is used to store and cool the liquid. The liquid in the pump suction vessel is kept at a temperature lower than its boiling point by surrounding the vessel with a jacketed space containing liquid from the storage tank. As the liquid in the jacketed space evaporates, the vapor is vented to the storage tank and more liquid is fed into the jacketed space.
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Beale, "LNG as a Transportation Fuel TOPTEC." Paper Presented at SAE (Jan. 1993).
Biederman et al., "Evaluation and Economic Analysis of LNG for Heavy-Duty Transportation Applications." The LNG Observer (1990/1991).
"NVE's New LGN Station Design." LNG Express (Jan./Feb. 1993).
"Houston Metro's Fueling Stations Go On-line." LNG Express Project Survey (May/Jun. 1993).
Engdahl Gerald E.
Mavec Joseph P.
Schoerner William S.
Chicago Bridge & Iron Technical Services Company
Freay Charles
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