Method or restoring turbine vane attachment systems in a...

Metal fusion bonding – Process – Repairing – restoring – or renewing product for reuse

Reexamination Certificate

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Details

C228S160000, C228S170000, C029S889100

Reexamination Certificate

active

08074866

ABSTRACT:
A system and method for repairing turbine vane attachment systems in a turbine engine. In at least one embodiment, the invention may be directed to a system and method for repairing wear on a diaphragm hook fit configured to attach diaphragm airfoils, such as stationary turbine vanes, to a combustion turbine case. The restoration system may be formed from a carriage assembly having an assortment of material processing implements usable to build up material in the worn locations of the turbine vane attachment system to reestablish a diaphragm hook fit within the specified tolerances. The restoration system may be configured so that the restoration process may occur without removing a rotor assembly, which can reduce the repair time by about two weeks. Thus, use of the restoration system can result in a significant time and cost savings.

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