Internal fuel manifold and fuel fairing interface
AssigneePratt & Whitney Canada Corp.
InventorsOleg MORENKO, Bryan Olver
Life of this patent
Estimating the term…
Abstract
A mounting system for an annular internal fuel manifold disposed within a gas turbine engine includes a fuel inlet assembly having a heat shield extending about at least a portion of an inner fuel inlet tube. The heat shield has a distal end engaged with the fuel manifold and has a radially outwardly projecting shoulder proximate an opposed proximal end thereof. The proximal end of the heat shield is received within a bushing disposed within a corresponding opening of a supporting casing. The shoulder of the heat shield retains the bushing in place.
Claims7
A mounting system for an internal fuel manifold of a gas turbine engine comprising a series of supports spaced apart about the annular fuel manifold, 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, the series of supports including a fuel inlet assembly connected to the fuel manifold and providing fuel flow to the fuel conveying passage, the fuel inlet assembly having a heat shield surrounding an internal fuel inlet tube defining a fuel flow passage therein, the heat shield extending between a distal end engaged with the fuel manifold and a proximal end matingly received within an opening in a supporting fuel fairing, an annular bushing being disposed within said opening between said fuel fairing and said proximal end of the heat shield, the heat shield having a shoulder proximate said proximal end, said shoulder retaining the bushing in place within said opening of the fuel fairing.
A mounting system for an annular internal fuel manifold disposed within a gas turbine engine, the mounting system comprising at least a fuel inlet assembly having a fuel inlet tube defining therein at least one fuel flow passage in fluid flow communication with at least one fuel conveying passage within the fuel manifold, the fuel inlet assembly including a heat shield extending about at least a portion of the fuel inlet tube, the heat shield having a distal end thereof engaged with the fuel manifold and having a radially outwardly projecting shoulder proximate an opposed proximal end thereof, the proximal end being received within a bushing disposed within a corresponding opening of a supporting casing, said shoulder of the heat shield retaining the bushing in place within said opening of the supporting casing.
An internal fuel manifold assembly for a gas turbine engine comprising:
- a fuel manifold ring having at least one fuel conveying passage therein in fluid flow communication with a plurality of fuel injection nozzles adapted for spraying fuel into a combustor of the gas turbine engine;
- a mounting system for supporting and positioning the fuel manifold ring within the gas turbine engine, the mounting system including at least a fuel inlet assembly having a fuel inlet tube defining therein at least one fuel flow passage in fluid flow communication with said at least one fuel conveying passage within the fuel manifold ring, the fuel inlet assembly including a heat shield disposed outwardly from the fuel inlet tube and extending along at least a portion of a length of the fuel inlet tube, the heat shield having a distal end thereof engaged with the fuel manifold ring and having an opposed proximal end matingly received within a bushing mounted within an corresponding opening;
- and
- wherein the heat shield includes a radially outwardly projecting shoulder near said proximal end thereof, said shoulder of the heat shield abutting the bushing such as to limit relative displacement therebetween.
A heat shield for a fuel inlet assembly of an internal fuel manifold in a gas turbine engine, the heat shield comprising:
- a tubular central body portion sized such that a fuel inlet tube in receivable therein and extending between a proximal end and a distal end thereof, the distal engage being adapted for engagement with the internal fuel manifold, the proximal end having a first diameter adapted for receipt within a mating bushing of a supporting casing;
- and a shoulder radially extending outwardly from at least said proximal end proximate thereto, said shoulder having a second diameter greater than said first diameter.
Dependencies are inferred from the claim text.