Valve assembly for modulating fuel flow to a gas turbine engine

Power plants – Combustion products used as motive fluid – Combustion products generator

Reexamination Certificate

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Details

C137S599070

Reexamination Certificate

active

07665305

ABSTRACT:
A valve assembly is disclosed for modulating the flow of fuel to a fuel nozzle at a high frequency or in a stepped manner to actively control combustion in a gas turbine engine which includes a valve housing defining an inlet portion for receiving fuel from a fuel source at an initial flow rate and an outlet portion for delivering fuel to a fuel nozzle at the initial flow rate or a modulated flow rate depending upon a detected combustion condition, and a mechanism disposed within the valve housing for modulating the flow rate of fuel to the outlet portion in response to a detected combustion condition.

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