COOLED TURBINE SHROUD

PROBLEM TO BE SOLVED: To provide a cooled turbine shroud capable of realizing a scope of film cooling application over the whole flow path surface without causing peeling-off of a coating applied to a flow path surface. SOLUTION: This cooled turbine shroud includes an arcuate flow path surface 32 ad...

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Bibliographische Detailangaben
Hauptverfasser:	NICHOLS GLENN HERBERT, LEE CHING-PANG, BRINK KURT G
Format:	Patent
Sprache:	eng
Schlagworte:	AIR INTAKES FOR JET-PROPULSION PLANTS BLASTING COMBUSTION ENGINES CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS ENGINE PLANTS IN GENERAL GAS-TURBINE PLANTS HEATING HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS LIGHTING MACHINES OR ENGINES IN GENERAL MECHANICAL ENGINEERING NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAMTURBINES STEAM ENGINES WEAPONS
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To provide a cooled turbine shroud capable of realizing a scope of film cooling application over the whole flow path surface without causing peeling-off of a coating applied to a flow path surface. SOLUTION: This cooled turbine shroud includes an arcuate flow path surface 32 adapted to surround a row of rotating turbine blades, and an opposed interior surface 34, a forward overhang 36 defining an axially-facing leading edge 38, an outwardly-extending forward wall 52 and an outwardly-extending aft wall 54, opposed first and second sidewalls 44, 46 wherein the forward and aft walls 52, 54 and the sidewalls 44, 46 define an open shroud plenum 56, at least one leading edge cooling hole 64 extending from the shroud plenum 56 to the leading edge 38, and at least one sidewall cooling hole 70, 76 extending from the plenum 56 to one of the sidewall 44, 46. The flow path surface 32 has no cooling hole and may include a protective coating applied thereto. COPYRIGHT: (C)2007,JPO&INPIT