Cryogenic fluid delivery system
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United States of America Patent
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Dec 5, 2006
Issued Date -
N/A
app pub date -
Jun 23, 2003
filing date -
Oct 29, 2001
priority date (Note) -
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Abstract
A cryogenic fluid delivery system includes a pump having a pumping cylinder within which a sliding pumping piston is positioned. The pump also includes an actuating cylinder within which a sliding actuating piston is positioned and a supplemental linear actuator, such as a hydraulic cylinder. The pumping and actuating pistons and supplemental linear actuator are joined by connecting rods. A portion of the cryogenic liquid pumped from a storage tank is vaporized in a heat exchanger and introduced into the actuating cylinder to power the pump with the assistance of the supplemental linear actuator so that high pump discharge pressures may be obtained.
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