COOLING SLOT PROTECTIVE DEVICE, PROTECTIVE SHIELD AND METHOD OF COATING COMPONENT

PROBLEM TO BE SOLVED: To provide a shield preventing coating from flowing into cooling slots of a vane. SOLUTION: An airfoil 26 of a vane assembly extending between platforms 25 is provided with the cooling slots 32 partitioned by a wall part 56 in a trailing edge part 30. In use, since the temperat...

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Bibliographische Detailangaben
Hauptverfasser:	MARSZAL DEAN N, TOPPEN HARVEY R
Format:	Patent
Sprache:	eng
Schlagworte:	AIR INTAKES FOR JET-PROPULSION PLANTS APPARATUS THEREFOR APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TO SURFACES, IN GENERAL ATOMISING APPARATUS BLASTING CHEMISTRY COMBUSTION ENGINES CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS ELECTROFORMING ELECTROLYTIC OR ELECTROPHORETIC PROCESSES ENGINE PLANTS IN GENERAL GAS-TURBINE PLANTS HEATING HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS LIGHTING MACHINES OR ENGINES IN GENERAL MECHANICAL ENGINEERING METALLURGY NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAMTURBINES NOZZLES PERFORMING OPERATIONS PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTIONOF COATINGS SPRAYING APPARATUS SPRAYING OR ATOMISING IN GENERAL STEAM ENGINES TRANSPORTING WEAPONS
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To provide a shield preventing coating from flowing into cooling slots of a vane. SOLUTION: An airfoil 26 of a vane assembly extending between platforms 25 is provided with the cooling slots 32 partitioned by a wall part 56 in a trailing edge part 30. In use, since the temperature of the vane becomes extremely high, air bleed is sent to a vane inside passage to cool the vane. Heat on a flow passage of the airfoil 26 is insulated by ceramic coating with low thermal conductivity. A photochemical edge shield 34 arranged in the airfoil 26 protects the slots 32 during ceramic coating, and prevents the coating from entering and clogging the slots 32. Projecting parts 38 extending from an edge part 36 of a main body 48 correspond to the slots 32, respectively. A positioning arm 40 is inserted into an opening part 58, and the shield 34 is aligned with the airfoil 26. COPYRIGHT: (C)2006,JPO&NCIPI