A METHOD AND SYSTEM FOR REPAIRING A TURBOMACHINE

A method to repair a turbomachine including: assign (102) blades (10) and a shroud (12) in a row of the turbomachine to a group; measure (104), for each blade in the group, a clearance (28) between a tip surface of the blade and a surface of the shroud facing the tip surface; remove (100) the blades...

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Bibliographic Details
Main Authors PAKUSZEWSKI, Mariusz, SMIESKOL, Georg Alois, WOJCIECHOWSKI, Marek
Format Patent
LanguageEnglish
French
German
Published 16.12.2020
Subjects
BLASTING
CASTING
COMBINED OPERATIONS
ENGINE PLANTS IN GENERAL
HEATING
LIGHTING
MACHINE TOOLS
MACHINES OR ENGINES IN GENERAL
MAKING METALLIC POWDER
MANUFACTURE OF ARTICLES FROM METALLIC POWDER
MECHANICAL ENGINEERING
METAL-WORKING NOT OTHERWISE PROVIDED FOR
NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAMTURBINES
OTHER WORKING OF METAL
PERFORMING OPERATIONS
POWDER METALLURGY
STEAM ENGINES
TRANSPORTING
UNIVERSAL MACHINE TOOLS
WEAPONS
WORKING METALLIC POWDER
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Summary:A method to repair a turbomachine including: assign (102) blades (10) and a shroud (12) in a row of the turbomachine to a group; measure (104), for each blade in the group, a clearance (28) between a tip surface of the blade and a surface of the shroud facing the tip surface; remove (100) the blades and shroud from the row; calculate (106) a difference between the clearance of associated each blade and a design clearance; determine (114), for each blade, if the difference may be minimized by adding material to the surface of the shroud; adding (116) material to the surface of the shroud, wherein the addition of material to the facing surfaces results in the shroud having at least one dimension that exceeds an original design dimension of the shroud sections, and installing (122) the group of the blades and the shroud to a row of a turbomachine.
Bibliography:Application Number: EP20170461575