Fuel control

Details Fuel control Fuel control

1985-06-12

1986-07-29

Casaregola, Louis J.

Power plants

Combustion products used as motive fluid

Combined with regulation of power output feature

F02C 928

Patent

active

046024794

ABSTRACT:
A reduced fuel flow to a gas turbine engine experiencing impending overspeed operating conditions is provided through a line (250) which bypasses the main shutoff valve (70) of the engine's fuel control (20). A transfer valve (260) disposed in the bypass line actuates the shutoff valve in response to such overspeed conditions while opening the normally closed bypass line. A flow resticter (275) and the fuel control's main pressure regulating valve (210) combine to maintain the reduced fuel flow at a predetermined valve.

REFERENCES:
patent: 3946551 (1976-03-01), Linebrink et al.
patent: 4010606 (1977-03-01), Hansen
patent: 4229937 (1980-10-01), Smith
patent: 4394811 (1983-07-01), Swick
patent: 4411133 (1983-10-01), Stearns et al.
patent: 4449359 (1984-05-01), Cole et al.
patent: 4493187 (1985-01-01), Hansen

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