Fluidic gas turbine fuel control

Details Fluidic gas turbine fuel control Fluidic gas turbine fuel control

1974-02-25

1976-05-25

Gordon, Clarence R.

Power plants

Combustion products used as motive fluid

60 3928R, 137805, 137818, F02C 910

Patent

active

039584127

ABSTRACT:
A pure fluidic fuel control system for a gas turbine engine in which engine speed and compressor discharge pressure are sensed and utilized to control the flow of fuel to the engine. In the system an analog fluid signal proportional to engine speed is applied to two separate fluidic circuits, one circuit to generate a signal for controlling the engine during acceleration and the other for controlling the engine during steady state operation. The difference between these two signals is multiplied by a signal proportional to the compressor discharge pressure, the product signal being proportional to the necessary fuel flow for any engine condition. The product signal is amplified and applied to a fuel flow valve, the position of which is sensed and fed back to the input of the product signal amplifier for closed loop control.

REFERENCES:
patent: 3302398 (1967-02-01), Taplin
patent: 3469395 (1969-09-01), Spitsbergen
patent: 3482396 (1969-12-01), Nelson
patent: 3488948 (1970-01-01), Cornett
patent: 3587230 (1971-06-01), Schmidt
patent: 3616647 (1971-11-01), Johnson
patent: 3630023 (1971-12-01), Lazar
patent: 3759296 (1973-09-01), O'Connor

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