Fuel control for a gas turbine engine reheat system

Details Fuel control for a gas turbine engine reheat system Fuel control for a gas turbine engine reheat system

1979-01-22

1980-10-28

Myracle, Jerry W.

Power plants

Reaction motor

Condition responsive thrust varying means

60261, G05D 706

Patent

active

042299390

ABSTRACT:
A fuel control for a gas turbine engine reheat system has a plurality of metering valves operated by an electrical control circuit for regulating fuel flow from a pump to respective burners of the reheat system. The pump has an inlet throttle which is also operated by the control circuit so that pump delivery is substantially equal to the sum of the detected fuel flows through the metering valves. The value of a measured pressure drop across one metering valve is compared with a desired value of that pressure drop, and a difference between these values is used to adjust the control signal to the pump inlet throttle, and thereby render the pump delivery more nearly equal to the aforesaid total flow.

REFERENCES:
patent: 3857241 (1974-12-01), Lewis
patent: 3913317 (1975-10-01), Lewis

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