Turbine bucket airfoil cooling hole location, style and configuration

Turbine bucket airfoil cooling hole location, style and configuration

First, second and third sets of cooling holes are provided in a turbine airfoil. The first set of holes adjacent a leading edge have turbulators commencing at a predetermined distance from the root of the airfoil and terminating short of the airfoil tip. A second set of cooling holes have turbulator...

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1. Verfasser: TOMBERG STEVEN E
Format: Patent
Sprache:eng
Schlagworte:
BLASTING
ENGINE PLANTS IN GENERAL
HEATING
LIGHTING
MACHINES OR ENGINES IN GENERAL
MECHANICAL ENGINEERING
NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAMTURBINES
STEAM ENGINES
WEAPONS
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description First, second and third sets of cooling holes are provided in a turbine airfoil. The first set of holes adjacent a leading edge have turbulators commencing at a predetermined distance from the root of the airfoil and terminating short of the airfoil tip. A second set of cooling holes have turbulators commencing at a greater distance from the platform than the turbulators of the first set and terminating short of the airfoil tip at a greater distance from the tip than the turbulators of the first set of holes. A third set of holes adjacent the trailing edge has smooth bores. The size, location, style and configuration of the cooling holes increases bulk creep part life and overall efficiency of the turbine.
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subjects BLASTING
ENGINE PLANTS IN GENERAL
HEATING
LIGHTING
MACHINES OR ENGINES IN GENERAL
MECHANICAL ENGINEERING
NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAMTURBINES
STEAM ENGINES
WEAPONS
title Turbine bucket airfoil cooling hole location, style and configuration
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