Disc firtree slot with truncation for blade attachment

A turbine rotor disc includes a plurality of attachment slots for receiving firtree-profiled blade roots. Each attachment slot is formed in an undulating profile having substantially smoothly curved and laterally, alternately recessed and projecting portions. At least one pair of substantially smoot...

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Bibliographische Detailangaben
Hauptverfasser:	LEGHZAOUNI OTHMANE, TRAN MINH LOC, DUROCHER ERIC
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 turbine rotor disc includes a plurality of attachment slots for receiving firtree-profiled blade roots. Each attachment slot is formed in an undulating profile having substantially smoothly curved and laterally, alternately recessed and projecting portions. At least one pair of substantially smoothly curved projecting portions being truncated at a tip thereof, respectively.