Removable anti-wear part for blade root

A movable blade for a turbomachine, eg a low-pressure turbine, comprises a tip shroud 130 and a removable part 300, comprising an anti-wear material, attached removably to one or both edges 210, 220 of the shroud platform 200 to limit wear of the shroud 130. The removable part 300 may have a central...

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Bibliographische Detailangaben
Hauptverfasser:	Pauline Namvong, Pragash Douglas, Vijeay Patel, Quentin Bruno Guy Andre Emile Lievoux
Format:	Patent
Sprache:	eng
Schlagworte:	BLASTING ENGINE PLANTS IN GENERAL HEATING 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:	A movable blade for a turbomachine, eg a low-pressure turbine, comprises a tip shroud 130 and a removable part 300, comprising an anti-wear material, attached removably to one or both edges 210, 220 of the shroud platform 200 to limit wear of the shroud 130. The removable part 300 may have a central portion (330, fig.4) extending between folded hooked ends (310), 320 which are deformed elastically or plastically around the respective edges 210, 220 of the platform 200. The central portion (330) may extend between knife edges 230, 235 of the platform 200. The removable part may thus cover a portion of the shroud like a cover plate or cowling. The removable part 300 may made of anti-wear material, eg an alloy of cobalt, chromium, tungsten and carbon (eg Stellite (RTM)), or may have anti-wear material deposited on it.