Trailing edge cooling apparatus for a gas turbine airfoil

A hollow airfoil is provided having a pressure side wall, a suction side wall, a cavity formed between the pressure and suction side walls, a plurality of cooling ports disposed within the pressure side wall, and a plurality of passages, each extending between the cavity and one of the cooling ports...

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Bibliographic Details
Main Authors PRZIREMBEL; HANS R, SOECHTING; FRIEDRICH O
Format Patent
LanguageEnglish
Published 21.12.1999
Edition6
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:A hollow airfoil is provided having a pressure side wall, a suction side wall, a cavity formed between the pressure and suction side walls, a plurality of cooling ports disposed within the pressure side wall, and a plurality of passages, each extending between the cavity and one of the cooling ports. Each passage has a first wall adjacent the suction side wall, a pair of passage side walls extending substantially toward the pressure side wall, and a second wall adjacent the pressure side wall. In a first embodiment, each passage further includes a pair of fillets extending between the passage side walls and the second wall. In a second embodiment, each passage includes a jog adjacent each cooling port.
Bibliography:Application Number: US19970969670