Device and method for pumping a fluid

Details Device and method for pumping a fluid Device and method for pumping a fluid

2007-08-21

2007-08-21

Rodriguez, William H. (Department: 3746)

Power plants

Reaction motor

Liquid oxidizer

C060S257000

Reexamination Certificate

active

11163711

ABSTRACT:
A method of pumping a fluid includes: providing a pressurizer for pressurizing the fluid, the pressurizer including at least two storage tanks, where, for each storage tank, the pressurizer includes a propellant entrance valve, a propellant exit valve, a pressurant entrance valve, and a pressurant exit valve, where each of the storage tanks is configured to be filled with the fluid under a low pressure and drained of the fluid under a high pressure by the force of a pressurant; and for each storage tank, opening and closing its associated valves in cycles to sequentially fill and drain the storage tank of the fluid, the cycles each having a cycle time between approximately 1 and 500 milliseconds.

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patent: 5362212 (1994-11-01), Bowen et al.
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patent: 5707217 (1998-01-01), Loeffler
patent: 6435843 (2002-08-01), Hur
patent: 6505691 (2003-01-01), Judge et al.

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