A COOLED TURBINE VANE PLATFORM COMPRISING FORWARD, MIDCHORD AND AFT COOLING CHAMBERS IN THE PLATFORM

A COOLED TURBINE VANE PLATFORM COMPRISING FORWARD, MIDCHORD AND AFT COOLING CHAMBERS IN THE PLATFORM

A cooling system (10) positioned within a turbine airfoil (12) and having film cooling channels (16) positioned within inner and outer endwalls (18, 20) of the turbine airfoil (12), with cooling fluids supplied to the cooling channels (16) other than from an aft cooling chamber (22) to prevent block...

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Hauptverfasser: WESTIN, Johan K, MYERS, Caleb, AZAD, Gm Salam, LEE, Ching-Pang, THRIFT, Alan A, JOO, Daniel
Format: Patent
Sprache:eng ; fre ; ger
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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creator WESTIN, Johan K
MYERS, Caleb
AZAD, Gm Salam
LEE, Ching-Pang
THRIFT, Alan A
JOO, Daniel
description A cooling system (10) positioned within a turbine airfoil (12) and having film cooling channels (16) positioned within inner and outer endwalls (18, 20) of the turbine airfoil (12), with cooling fluids supplied to the cooling channels (16) other than from an aft cooling chamber (22) to prevent blockages from developing within the film cooling channels (16) from debris that typically collects with the aft cooling chamber (22) during steady state operation of the turbine engine is disclosed. The cooling system (10) may include one or more midchord cooling channels (24) extending from a midchord cooling chamber (26) and including an outlet (28) positioned closer to a downstream edge (30) of the inner endwall (18) than an upstream wall (32) forming the aft cooling chamber (22). The midchord cooling channel, thus, may cool aspects of the inner endwall (18) radially outward of the aft cooling chamber (22) without receiving cooling fluid from aft cooling chamber (22), thereby eliminating the possibility of blockages from debris in the aft cooling chamber (22).
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language eng ; fre ; ger
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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 A COOLED TURBINE VANE PLATFORM COMPRISING FORWARD, MIDCHORD AND AFT COOLING CHAMBERS IN THE PLATFORM
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