METHODS AND APPARATUS FOR COOLING GAS TURBINE ENGINE NOZZLE ASSEMBLIES

A method for fabricating a nozzle (51) for a gas turbine engine (10) facilitates extending a useful life of the nozzles. The nozzle includes an airfoil (52). The method includes forming the airfoil to include a suction side (60) and a pressure side (62) connected at a leading edge (64) and a trailin...

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Bibliographische Detailangaben
Hauptverfasser:	MANNING, ROBERT FRANCIS, DEMARCHE, THOMAS EDWARD
Format:	Patent
Sprache:	eng ; fre
Schlagworte:	AIR INTAKES FOR JET-PROPULSION PLANTS BLASTING CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TOTRANSPORTATION COMBUSTION ENGINES CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS ENGINE PLANTS IN GENERAL GAS-TURBINE PLANTS GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS 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 TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE WEAPONS
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Beschreibung
Zusammenfassung:	A method for fabricating a nozzle (51) for a gas turbine engine (10) facilitates extending a useful life of the nozzles. The nozzle includes an airfoil (52). The method includes forming the airfoil to include a suction side (60) and a pressure side (62) connected at a leading edge (64) and a trailing edge (66) such that a cooling cavity (82) and a cooling circuit (80) are defined within the airfoil, where in the suction side and the pressure side extend radially between a tip (72) and a root (70). The method also includes forming a plurality of cooling slots (96) within th e airfoil that extend from the cooling circuit towards the airfoil trailing edge, and forming a control vane (110) within the cooling circuit to facilitate maintaining a substantially constant cooling effectiveness within the cooling circuit.