Dual pump fuel delivery system

Details Dual pump fuel delivery system Dual pump fuel delivery system

1990-09-04

1992-06-02

Bertsch, Richard A.

Pumps

Condition responsive control of pump drive motor

Plural pumps having separate drive motors, supply sources,...

417426, 60734, F04B 4906

Patent

active

051182580

ABSTRACT:
A dual pump fault tolerant fuel delivery system for providing a metered fuel flow to an aircraft gas turbine engine, combines a fixed displacement pump with a demand control pump operating at a speed commanded by an electronic engine control such that the electronic engine control can provide the metered fuel flow by controlling the speed of the demand control pump and the area of a metering valve to reduce the temperature of the fuel in comparison to fuel systems employing a fixed displacement pump, a pressure regulating valve and a bypass fuel flow system.

REFERENCES:
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patent: 3382672 (1968-05-01), French
patent: 3696612 (1972-10-01), Berman
patent: 3946551 (1976-03-01), Linebrink et al.
patent: 4185460 (1980-01-01), Moore et al.
patent: 4208871 (1980-01-01), Riple, Jr.
patent: 4607486 (1986-08-01), Cole
patent: 4864159 (1989-09-01), Cygnor
patent: 4899535 (1990-02-01), Dehan et al.
patent: 4987737 (1991-01-01), Cantwell

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