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

Title
Adduction dair variable pour moteurs a combustion
Variable area means for air systems of air blast type fuel nozzle assemblies
Application Number
388912
Publication Number
1188111
Application Date
October 28, 1981
Publication Date
June 4, 1985
Inventor
Halvorsen Robert M
Helmrich William F
Agent
MACRAE & CO
Assignee
Ex Cell O Corporation
IPC
F23D 11/24
F23C 07/00
F02C 03/00
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