Patent ID: 8646703

Claim:
A flow adjustment orifice system for a fuel nozzle, the flow adjustment orifice system comprising: a metering plate that connects to an air/fuel inlet end of a fuel nozzle; a plurality of metering orifices disposed about the metering plate that align with a plurality of air/fuel inlet orifices on the air/fuel inlet end of the fuel nozzle, wherein at least one of the plurality of metering orifices reduces an open cross-sectional area for at least one of the air/fuel inlet orifices; a second metering plate that connects to the air/fuel inlet end of the fuel nozzle and aligns with the first metering plate, the second metering plate having a larger diameter than the first metering plate; and a second plurality of metering orifices disposed about the second metering plate that align with a second plurality of air/fuel inlet orifices on the air/fuel inlet end of the fuel nozzle, wherein at least one of the second plurality of metering orifices reduces a second open cross-sectional area for at least one of the second plurality of air/fuel inlet orifices.