US 2009/0266079 A1 · Premix Nozzles and Gas Turbine Engine Systems Involving Such Nozzles

Abstract

Premix nozzles and gas turbine engine systems involving such nozzles are provided. In this regard, a representative industrial gas turbine engine includes: a combustion section having a nozzle assembly operative to provide a fuel-air mixture for combustion, the nozzle assembly having an array of shuttered nozzles and non-shuttered nozzles; each of the shuttered nozzles being operative in an open position, in which air is directed through the shuttered nozzle for mixing with fuel, and a closed position, in which a reduced amount of air is directed through the shuttered nozzle; each of the shuttered nozzles being inoperative to independently alter an amount of air being directed therethrough.

Claims20

Dependent claims

A premix nozzle for an industrial gas turbine engine comprising:

a housing defining an interior and having an outlet communicating with the interior, the housing further having a housing opening communicating with the interior, the housing opening being operative such that air exterior to the housing is drawn into the interior of the housing through the housing opening, mixed with fuel, and directed out of the housing through the outlet;
and
a valve contacting the exterior of the housing and having a valve opening, the valve being movable between an open position, in which the valve opening is aligned with the housing opening such that air exterior to the housing is drawn into the interior of the housing through the valve opening and the housing opening, and a closed position, in which a reduced amount of air exterior to the housing is drawn into the interior.

Dependencies are inferred from the claim text.

Premix Nozzles and Gas Turbine Engine Systems Involving Such Nozzles

Life of this patent

Premix Nozzles and Gas Turbine Engine Systems Involving Such Nozzles

Life of this patent

Abstract

Claims20