Turbine engine fuel control system

Details Turbine engine fuel control system Turbine engine fuel control system

1988-01-28

1989-04-04

Casaregola, Louis J.

Power plants

Combustion products used as motive fluid

Combined with regulation of power output feature

251285, F02C 932

Patent

active

048173754

ABSTRACT:
A fuel control system for a turbine engine includes a fuel flow regulator comprising a double differential piston slidable in a sleeve to vary the opening and closing of a fuel inlet or outlet and thereby regulate the output flow of fuel from the regulator. A first fixed stop limits the movement of the piston in one direction to define the maximum output flow of fuel permitted by the regulator, while a second stop, in an operative safety position, limits the movement of the piston in the opposite direction to define a minimum fuel output threshold. The second stop can, however, be retracted to an inoperative position by actuation of a control circuit to allow the minimum fuel output threshold to be overcome and the regulator piston to reach an extreme nil outflow position.

REFERENCES:
patent: 2642718 (1953-06-01), Pearl
patent: 2879643 (1957-03-01), Stroh
patent: 2986880 (1961-06-01), Fortmann
patent: 3213886 (1965-10-01), Pearne
patent: 4033112 (1977-07-01), Schuster

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