Impingement cooled airfoil with bonding foil insert

An impingement cooled airfoil (10) is fabricated by diffusion bonding a pair of airfoil half-sections (12,14) together using an insert (18) which is prefabricated from diffusion bonding foil. The insert (18) is perforated so as to act as an impingement baffle. Axially-extending ribs (44) may be form...

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Bibliographische Detailangaben
Hauptverfasser:	GOLDMAN, EDWARD HARVEY, DAMLIS, NICHOLAS, MARTUS, JAMES ARTHUR
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	AIR INTAKES FOR JET-PROPULSION PLANTS BLASTING COMBINED OPERATIONS 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 INDEXING SCHEME FOR ASPECTS RELATING TONON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES ORJET-PROPULSION PLANTS INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUSSUBCLASSES OF CLASSES F01-F04 LIGHTING MACHINE TOOLS MACHINES OR ENGINES IN GENERAL MECHANICAL ENGINEERING METAL-WORKING NOT OTHERWISE PROVIDED FOR NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAMTURBINES OTHER WORKING OF METAL PERFORMING OPERATIONS STEAM ENGINES TRANSPORTING UNIVERSAL MACHINE TOOLS WEAPONS
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Beschreibung
Zusammenfassung:	An impingement cooled airfoil (10) is fabricated by diffusion bonding a pair of airfoil half-sections (12,14) together using an insert (18) which is prefabricated from diffusion bonding foil. The insert (18) is perforated so as to act as an impingement baffle. Axially-extending ribs (44) may be formed on the internal walls of the airfoil half-sections or on the insert to support and accurately space the insert member (18) from the internal walls so as to optimize impingement cooling.