Patent ID: 7278828
Filing Date: 2007-10-09
Classification: B23P,F01D,F05D,Y02T,Y10T

Abstract:
1. A method of repairing a gas turbine vane and nozzle assembly, the method comprising the steps of: fabricating a repair cover, wherein the step of fabricating the repair cover comprises the steps of: removing an undesired plenum cover from the plenum casting of a vane and nozzle assembly, wherein the undesired plenum cover is adapted to direct the flow of the cooling gas into a plenum chamber for conveyance to a plurality of cooling openings in the at least one vane; positioning the repair cover over a plenum casting of the vane and nozzle assembly, the repair cover in a desired alignment with the vane assembly; and attaching the repair cover to the plenum casting of the vane and nozzle assembly to form a repaired nozzle and vane assembly having a plenum chamber for conveyance of cooling gas to a plurality of cooling openings in the at least one vane.