Fuel control

Details Fuel control Fuel control

1972-11-08

1976-02-24

Gordon, Clarence R.

Power plants

Combustion products used as motive fluid

Combined with regulation of power output feature

60 3916R, 277 30, 60 3914, F02C 908

Patent

active

039396495

ABSTRACT:
A hydromechanical fuel control for a turboshaft engine includes a gas producer control and an independent power turbine governor in series flow relationship. The basic gas producer control includes an acceleration system, a deceleration system and all speed governor to regulate the fuel flow output of the gas producer control. The acceleration system includes a main metering valve which is positioned by a compressor discharge pressure responsive device and the all speed governor. A speed responsive computer mechanism controls the head across the metering valve. The computer mechanism includes an enrichment valve and a start valve and is connected to the shut-off valve lever for the fuel control in such a manner that the mechanism may be controlled by actuation of this lever. The power turbine governor includes a fuel flow reset governor and a deceleration system to prevent flameouts. The fuel control and power turbine each have separate input levers and meter fuel to the engine in accordance with the lowest demanded fuel flow.

REFERENCES:
patent: 2929252 (1960-03-01), Evers
patent: 3050941 (1962-08-01), Rogers
patent: 3446015 (1969-05-01), Kimmel
patent: 3521446 (1970-07-01), Maljanian

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