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

1980-11-20

1983-04-26

Casaregola, Louis J.

Power plants

Reaction motor

Condition responsive thrust varying means

60 39281, F02C 928

Patent

active

043808980

ABSTRACT:
A gas turbine engine fuel system of the type using the rotational speed of the high pressure spool as the main control parameter has a trimmer device which reduces the effect of variation of engine geometry in cold starts etc. The trimmer uses the throttle lever angle and engine inlet pressure to compute the desired value of a thrust-related parameter such as weighted mean exhaust pressure, this desired value being compared with the actual value to produce a trim input to the main fuel control unit.

REFERENCES:
patent: 3797233 (1974-03-01), Webb et al.
patent: 3854287 (1974-12-01), Rembold
patent: 4033112 (1977-07-01), Schuster
patent: 4159625 (1979-07-01), Kerr
patent: 4245462 (1981-01-01), McCombs

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