Centrifugal pump fuel system

Details Centrifugal pump fuel system Centrifugal pump fuel system

1992-06-29

1993-06-22

Casaregola, Louis J.

Power plants

Combustion products used as motive fluid

Combustion products generator

415 49, F02C 722

Patent

active

052207935

ABSTRACT:
A centrifugal pump has a rising characteristic at low flows, leading to pressure pulsations in the fuel system at low flow. A pressure difference regulating valve at the pump discharge has a frequency response such that the valve does not significantly move in response to the pulsations. The valve responds to less rapid changes, thereby avoiding high pressure loss at high flows.

REFERENCES:
patent: 2986883 (1961-06-01), Li
patent: 3048117 (1962-08-01), Frazen et al.
patent: 3826586 (1974-07-01), Richards
patent: 4487548 (1984-12-01), Leachman, Jr. et al.
patent: 4612766 (1986-09-01), Eder
patent: 4652222 (1987-03-01), Aiba
Dussourd, J. L., Pfannebecker, G. W., Singhania, S. K., An Experimental Investigation of the Control of Surge in Radial Compressors Using Close Coupled Resistances, Mar. 1977, ASME, pp. 64, 65, 72.
Greitzer, E. M., The Stability of Pumping Systems-The 1980 Freeman Scholar Lecture, Jun. 1981, vol. 103/193, ASME, pp. 193-214.

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