CLEANING METHOD FOR TURBINE AIRFOILS BY ULTRASONICS

A cleaning method for gas turbine engine (10) airfoils (30) includes a step of immersing an ultrasonic agitator, such as a welding horn (60), into a tank (52) with a cleaning solution (54) and a step of directing the ultrasonic agitator onto the portion of the airfoil (30) having the crust layer. A...

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Bibliographische Detailangaben
Hauptverfasser:	DRAGHI, PETER, J, SHURMAN, BRIAN, J
Format:	Patent
Sprache:	eng ; fre
Schlagworte:	AIR INTAKES FOR JET-PROPULSION PLANTS AIRCRAFT AVIATION BLASTING CLEANING CLEANING IN GENERAL COMBUSTION ENGINES COMBUSTION ENGINES IN GENERAL CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS COSMONAUTICS DESIGNING, MANUFACTURING, ASSEMBLING, CLEANING, MAINTAINING ORREPAIRING AIRCRAFT, NOT OTHERWISE PROVIDED FOR ENGINE PLANTS IN GENERAL GAS-TURBINE PLANTS GROUND OR AIRCRAFT-CARRIER-DECK INSTALLATIONS SPECIALLYADAPTED FOR USE IN CONNECTION WITH AIRCRAFT HANDLING, TRANSPORTING, TESTING OR INSPECTING AIRCRAFTCOMPONENTS, NOT OTHERWISE PROVIDED FOR 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 INTERNAL-COMBUSTION PISTON ENGINES LIGHTING MACHINES OR ENGINES IN GENERAL MECHANICAL ENGINEERING NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAMTURBINES PERFORMING OPERATIONS PREVENTION OF FOULING IN GENERAL STEAM ENGINES TRANSPORTING WEAPONS
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Beschreibung
Zusammenfassung:	A cleaning method for gas turbine engine (10) airfoils (30) includes a step of immersing an ultrasonic agitator, such as a welding horn (60), into a tank (52) with a cleaning solution (54) and a step of directing the ultrasonic agitator onto the portion of the airfoil (30) having the crust layer. A subsequent step of high pressure water jet spray removes the crust debris. The cleaning method of the present invention significantly increases the power density of the ultrasonic cleaning. La présente invention concerne un procédé de nettoyage pour aubes (30) de turbomoteurs (10), qui comprend une étape dans laquelle on immerge un agitateur ultrasonique, tel qu'un cornet de soudage (60), dans une cuve (52) contenant une solution de nettoyage (54) et une étape dans laquelle on dirige l'agitateur ultrasonique sur la partie de l'aube (30) présentant la couche de saleté. Suit une étape de projection d'un jet d'eau à haute pression, qui enlève les débris de la couche de saleté. Le procédé de nettoyage de la présente invention accroît de façon importante la densité de puissance du nettoyage aux ultrasons.