ELEMENT OR BLADE OF FLUID OPERATION FOR TURBO MACHINE

PURPOSE: An element or blade of fluid operation for a turbo machine is provided to enable to practice inspection and repair after production with precision and reliability obtained at first production process. CONSTITUTION: A turbine blade (18) for a gas turbine engine includes a machining datum and...

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Bibliographic Details
Main Authors STAUFFER BRUCE A, WILCOX GILBERT B
Format Patent
LanguageEnglish
Korean
Published 15.03.2001
Edition7
Subjects
BLASTING
ENGINE PLANTS IN GENERAL
HEATING
INDEXING SCHEME FOR ASPECTS RELATING TONON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES ORJET-PROPULSION PLANTS
INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUSSUBCLASSES OF CLASSES F01-F04
LIGHTING
MACHINE TOOLS
MACHINES OR ENGINES IN GENERAL
MECHANICAL ENGINEERING
METAL-WORKING NOT OTHERWISE PROVIDED FOR
MILLING
NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAMTURBINES
PERFORMING OPERATIONS
STEAM ENGINES
TRANSPORTING
WEAPONS
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Summary:PURPOSE: An element or blade of fluid operation for a turbo machine is provided to enable to practice inspection and repair after production with precision and reliability obtained at first production process. CONSTITUTION: A turbine blade (18) for a gas turbine engine includes a machining datum and support tool interface (52). The datum and interface feature is a frustoconical depression residing in a blade outer shroud (36) and ideally aligned with an airfoil stacking line (40). The blade has a prefinished state in which the depression has a prefinished depth (d1) and a finished state in which the depression has a finished depth (d2). The finished depth (d2) is smaller than the prefinished depth (d1), but is nevertheless sufficient to act as a support feature during manufacturing operations. The utility of the depression, as both a datum and as a support feature, survives the original manufacturing operations so that the depression is useful for post-manufacturing inspection and repair.
Bibliography:Application Number: KR20000046870