Film cooled turbine airfoil having a plurality of trench segments on the exterior surface

An airfoil (10) includes a platform (12) and an exterior surface (18) connected to the platform (12). The airfoil may be used, for example, as a rotating blade or stationary vane in a turbine. A plurality of trench segments (40) are on the exterior surface (18) of the airfoil, and each trench segmen...

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Bibliographic Details
Main Author Lacy, Benjamin Paul
Format Patent
LanguageEnglish
French
German
Published 02.08.2017
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
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Summary:An airfoil (10) includes a platform (12) and an exterior surface (18) connected to the platform (12). The airfoil may be used, for example, as a rotating blade or stationary vane in a turbine. A plurality of trench segments (40) are on the exterior surface (18) of the airfoil, and each trench segment (40) extends less than 50% of a length of the exterior surface (18). A cooling passage (50) in each trench (40) segment supplies a cooling media to the exterior surface (18).
Bibliography:Application Number: EP20130150621