SEALING RING FOR A TURBINE STAGE OF AN AIRCRAFT TURBOMACHINE, COMPRISING SLOTTED ANTI-ROTATION PEGS

SEALING RING FOR A TURBINE STAGE OF AN AIRCRAFT TURBOMACHINE, COMPRISING SLOTTED ANTI-ROTATION PEGS

The invention relates to a sealing ring (60) intended to be pressed against a rotor disc of a turbine stage for an aircraft turbomachine, the ring being equipped with a plurality of anti-rotation pegs (66) for preventing it from rotating in relation to the rotor disc, each peg (66) protruding axiall...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: CASALIGGI, PASCAL, PASQUIET, DIDIER, POUZET, EMILIE
Format: Patent
Sprache:eng ; fre
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:The invention relates to a sealing ring (60) intended to be pressed against a rotor disc of a turbine stage for an aircraft turbomachine, the ring being equipped with a plurality of anti-rotation pegs (66) for preventing it from rotating in relation to the rotor disc, each peg (66) protruding axially from a ring body (63) and having two opposite circumferential-end surfaces (72) which are intended respectively to be located facing two directly consecutive blades carried on the rotor disc. According to the invention, an axially opening slot (70) passes radially through at least one of the anti-rotation pegs (66). L' invention concerne un flasque d'étanchéité (60) destiné à être plaqué contre un disque de rotor d'étage de turbine pour turbomachine d'aéronef, le flasque étant équipé d'une pluralité de tenons anti-rotation (66) permettant de bloquer sa rotation relativement au disque de rotor, chaque tenon (66) étant en saillie axialement à partir d'un corps de flasque (63) et présentant deux surfaces opposées d'extrémité circonférentielle (72), respectivement destinées à se situer en regard de deux aubes directement consécutives portées par le disque de rotor. Selon l'invention, au moins l'un des tenons anti-rotation (66) est traversé radialement par une fente (70) s' ouvrant axialement.