Electronic fuel control for a gas turbine engine

Details Electronic fuel control for a gas turbine engine Electronic fuel control for a gas turbine engine

1975-07-22

1977-08-09

Gordon, Clarence R.

Power plants

Combustion products used as motive fluid

Combined with regulation of power output feature

60 3916R, F02C 908

Patent

active

040402509

ABSTRACT:
An electronic gas turbine fuel control of the slave datum type, i.e. one including a circuit which generates a speed error signal, an electronic integrator which integrates that error signal to produce a speed datum signal and a difference amplifier comparing the speed datum signal with the actual engine speed to produce a fuel error signal, incorporates a surge detection and recovery circuit. For detection the rate of change of the fuel error signal is derived and compared with a reference value varying with engine conditions. For recovery, if the rate of change exceeds the reference value for a predetermined time during acceleration, the speed error signal is caused to go negative for a fixed period to ramp the integrator output downwards, after which acceleration is allowed to recommence.

REFERENCES:
patent: 3098356 (1963-07-01), Joline
patent: 3174529 (1965-03-01), Grosselfinger
patent: 3295317 (1967-01-01), Blackaby
patent: 3421317 (1969-01-01), Bedford
patent: 3688504 (1972-09-01), Hutchinson
patent: 3739250 (1973-06-01), Beadman
patent: 3774395 (1973-11-01), Greune
patent: 3852958 (1974-12-01), Adams
patent: 3868625 (1975-02-01), Speigner
patent: 3982389 (1976-09-01), Maker

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