VARIABLE AREA MEANS FOR AIR SYSTEMS OF AIR BLAST TYPE FUEL NOZZLE ASSEMBLIES

摘要

A variable area air system means for air blast type fuel nozzles for use in gas turbine engines wherein fuel/ air ratios are controlled for the purpose of controlling engine emission products to meet mandated emission standards over a wide range of engine operating conditions. The variable area air metering means is connected with a pressure responsive actuating means for controlling the air flow in single fuel system and dual fuel system air blast type fuel nozzle and support assemblies used in gas turbine engines.