Fuel control system for a gas turbine engine

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

1981-11-16

1984-10-02

Casaregola, Louis J.

Power plants

Combustion products used as motive fluid

Combined with regulation of power output feature

F02C 928

Patent

active

044739990

ABSTRACT:
A fuel control system for a gas turbine engine comprises a variable metering device and a flow limiting valve arranged in series. The limiting valve is servo pressure operated to reduce fuel flow in response to unacceptably high levels of certain engine operating conditions and is additionally movable to a fully shut condition when the engine is stopped. The servo operating pressure is controlled by an electrically actuated pilot valve which can be energized to a first level to provide flow limitation, and to a second, higher level to effect shut down. The pilot valve can also be energized in a reverse direction to open the limiting valve when starting the engine.

REFERENCES:
patent: 3991569 (1976-11-01), Smith
patent: 4011716 (1977-03-01), Smith
patent: 4187673 (1980-02-01), Smith
patent: 4229937 (1980-10-01), Smith

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