초록 ▼

A method of repairing a combustion chamber assembly 32 from an axial flow gas turbine engine 20 is disclosed. Various details are developed which facilitate repair of the combustion chamber assembly of the engine. In one detailed embodiment, a laser beam 80 separated the bulkhead of the combustion c

A method of repairing a combustion chamber assembly 32 from an axial flow gas turbine engine 20 is disclosed. Various details are developed which facilitate repair of the combustion chamber assembly of the engine. In one detailed embodiment, a laser beam 80 separated the bulkhead of the combustion chamber assembly from the remainder of the assembly to allow independent repair of the bulkhead and the remainder of the assembly.

대표청구항 ▼

A method of repairing a hooded bulkhead portion of a combustion chamber assembly of the type having an upstream end, a downstream end, an axis of symmetry A, a bulkhead assembly which includes an inner ring, an outer ring spaced radially from the inner ring, and an annular bulkhead extending from th

A method of repairing a hooded bulkhead portion of a combustion chamber assembly of the type having an upstream end, a downstream end, an axis of symmetry A, a bulkhead assembly which includes an inner ring, an outer ring spaced radially from the inner ring, and an annular bulkhead extending from the inner ring to the outer ring, the bulkhead having a number of openings for orienting fuel nozzles disposed circumferentially about the bulkhead, the combustion chamber assembly further including an outer wall extending downstream from the outer ring and a combustion chamber hood extending upstream from the outer ring, then radially inwardly then downstream to the inner ring, the combustion chamber hood having integrated lug mountings extending therefrom for supporting the combustion chamber assembly in the installed condition, comprising: (a) separating the annular bulkhead by removing a circumferentially extending portion of material on the bulkhead at a region between the openings for the fuel nozzles and the inner ring and by removing a circumferentially extending portion of material on the bulkhead at a region between the openings for the fuel nozzles and the outer ring; and (b) fixing the bulkhead as one part and a hooded portion of the combustion chamber assembly as a separate part; (c) reattaching the bulkhead to the hooded portion of the combustion chamber assembly; wherein removing the bulkhead from between the inner ring and the outer ring preserves the relationship the lug mountings have with the inner ring and the outer ring of the bulkhead assembly and, wherein leaving the combustion chamber hood undisturbed allows the combustion chamber hood to reinforce the inner ring and the outer ring and aids in maintaining the original orientation with respect to the lug mountings during the repair operation.