Fluid control valve and method

Details Fluid control valve and method Fluid control valve and method

1975-11-07

1977-01-04

Gordon, Clarence R.

Power plants

Combustion products used as motive fluid

137117, 1376253, 137599, 137448, 60 3928R, F02C 910, F02C 908

Patent

active

040006077

ABSTRACT:
Method and apparatus for metering fuel flow to a gas turbine engine includes a first bifurcated movable metering element straddling a pair of opposed metering openings and shiftable to adjust the area of the openings to vary fuel flow from a pump to the combustion chamber of the engine. A second bifurcated movable metering element straddles a second pair of opposed metering openings to adjust fuel flow back to the inlet of the pump in bypassing relationship to the combustor. The movement of the second metering element is responsive to the pressure differential across the first metering openings to maintain this pressure differential substantially constant to allow precise fuel metering by movement of the first metering element.

REFERENCES:
patent: 3078669 (1963-02-01), Williams
patent: 3350880 (1967-11-01), McCombs
patent: 3390522 (1968-07-01), Whitehead
patent: 3411291 (1968-11-01), Tyler
patent: 3430654 (1969-03-01), Mills
patent: 3538707 (1970-11-01), Karol

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