Fuel flow control valve

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 4776560
SERIAL NO

06920610

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Abstract

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A fuel flow control valve is adapted to control the flow of fuel in a spill line to control the amount of fuel usable in a two speed gas turbine. The valve includes fluid pressure operated valve means controlled by two variable volume fluid pressure chambers to provide appropriate fuel flow for `run` and `idle` conditions, and positioning means to automatically position the fluid pressure operated valve means when the control valve is at rest to provide a flow of fuel appropriate for `start-up` of the gas turbine that is greater than the flow required in the `idle` condition but less than that required in the `run` condition. Operating fluid pressures connected to the chambers may comprise either gaseous fluid pressures tapped from a stage of the compressor of the gas turbine or a combination of said gaseous pressure source and a liquid fluid pressure source preferably comprising a fuel pressure supply tapped from the fuel supply line to the gas turbine.

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Patent Owner(s)

Patent OwnerAddress
NORMALAIR-GARRETT (HOLDINGS) LIMITEDGROUP PATENTS DEPT BOX 206 WESTLAND WORKS YEOVIL SOMERSET BA20 2YB

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Adams, Neville F Yeovil, GB2 1 2
Rowland, Peter J Yeovil, GB2 3 21
Short, Ronald E Beaminster, GB2 1 2

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