Patent ID: 8171738
Filing Date: 2012-05-08
Classification: F02C,Y10T

Abstract:
1. A fuel injection system for gas turbine engine including a compressor, a combustor and a turbine, comprising: an annular internal fuel manifold disposed adjacent the combustor within a surrounding gas generator casing, the fuel manifold having at least one fuel conveying passage therein in fluid flow communication with a plurality of fuel injection nozzles disposed along the fuel manifold and adapted to spray fuel into the combustor, and a radially extending fuel inlet having a distal end thereof connected to the fuel manifold and providing fuel flow to the fuel conveying passage; and a mounting system supporting and positioning the fuel manifold relative to the combustor within said gas generator casing, the mounting system including a tubular heat shield surrounding the fuel inlet and extending along a length of the fuel inlet disposed between the fuel manifold and the gas generator casing, the heat shield having a proximal end in direct load bearing engagement with one or both of the fuel inlet and the gas generator casing and a distal end in direct load bearing engagement with the fuel manifold, such that the heat shield provides a load path therethrough which significantly reduces the load born by the fuel inlet, the heat shield thereby bear more load than the fuel inlet to support the fuel manifold.