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

1983-07-14

1985-07-16

Casaregola, Louis J.

Power plants

Combustion products used as motive fluid

Combined with regulation of power output feature

F02C 928

Patent

active

045288127

ABSTRACT:
A fuel control system for a gas turbine engine comprises a main fuel controller and an overspeed limiter arranged to prevent overspeed of the engine in the case of a fault in the main controller. To ensure that the limiter is tested regularly, the logic capacity of the main controller (which is preferably a digital electronic unit) is used to vary the parameters of the limiter each time the engine is started up. This variation is such as to cause the limiter to operate and produce an observable reduction in the engine speed which is detected by the main controller and uses as an indication of correct limiter operation.

REFERENCES:
patent: 4218879 (1980-08-01), Hagrman et al.
patent: 4248040 (1981-02-01), Kast
patent: 4397148 (1983-08-01), Stockton et al.

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