Fuel nozzle guide structure and retainer for a gas turbine...

Details Fuel nozzle guide structure and retainer for a gas turbine... Fuel nozzle guide structure and retainer for a gas turbine...

F - Mech Eng,Light,Heat,Weapons

23

R

60/176, 60/187

F23R 3/28 (2006.01) F23R 3/60 (2006.01)

Patent

CA 1297305

-15- ABSTRACT FUEL NOZZLE GUIDE STRUCTURE AND RETAINER FOR A GAS TURBINE ENGINE A nozzle guide structure (10) is provided for receiving a fuel nozzle (34) in an opening (30) in a planar bulkhead (28) of a combustion chamber (12). The guide structure (10) includes an inner bushing (44), a transverse heat shield (46), and an annular retainer (52) disposed opposite the heat shield (46) with respect to the bulkhead (28). Flow openings (62) disposed in the retainer (52) admit cooling air (64) into an annular gap (50) formed between the bushing (44) and the bulkhead (28). The cooling air (64) subsequently flows between the bulkhead (28) and the heat shield (46) to provide cooling thereto.

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