Electrically driven fuel pump for gas turbine engines

Details Electrically driven fuel pump for gas turbine engines Electrically driven fuel pump for gas turbine engines

1987-10-14

1989-03-28

Casaregola, Louis J.

Power plants

Combustion products used as motive fluid

Combined with regulation of power output feature

417 42, F02C 930

Patent

active

048152781

ABSTRACT:
An improved electrically driven fuel control system for a gas turbine engine is disclosed. The system utilizes a combination of variation in power applied to an electrically powered drive of a positive displacement fuel pump and braking to achieve an optimized response characteristic approaching that of mechanically driven fuel systems directly driven from the gas turbine engine. In the preferred embodiment, for a decrease in fuel delivery exceeding a predetermined limit control of the electric drive for the fuel pump is achieved by braking. For decreases in fuel delivery having a magnitude less than the predetermined limit and for fuel increases, control is achieved by varying the power applied to the electric drive for the fuel pump.

REFERENCES:
patent: 2644300 (1953-07-01), Waterman et al.
patent: 3596467 (1971-08-01), Avery
patent: 3618315 (1971-11-01), Avery
patent: 3620010 (1971-11-01), Davis
patent: 3908360 (1975-09-01), Meyer et al.
patent: 3985468 (1976-10-01), Lewis
patent: 4004412 (1977-01-01), Burnell
patent: 4208871 (1980-06-01), Riple
patent: 4697238 (1987-09-01), Barbeau

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