VALVE ASSEMBLY FOR MODULATING FUEL FLOW TO A GAS TURBINE ENGINE

摘要

A valve assembly is disclosed for modulating the flow of fuel to a fuel nozz le 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 receivin g 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.