AREA CONTROL INSERT FOR MAINTAINING AIR FLOW UNIFORMITY AROUND THE COMBUSTOR OF A GAS TURBINE ENGINE

摘要

Means for improving flow uniformity and reducing disturbances in compressor discharge air flowing through passages around the combustion chamber of a gas turbine engine are provided by an area control insert. The insert comprises circumferentially and longitudinally extending walls within the forward portions of the air passages to constrict the cross-sectional areas of the passages. Such constriction operates to minimize pressure gradients within the turning and splitting air flow and thereby reduce the tendency for the air flow to separate from the passage walls at random locations around the periphery thereof.