Blade for turbine of turboshaft engine, has upstream spoiler and downstream spoiler including hooks, where hooks are projected to generate axial thrust and include oblique external face presenting groove

The blade has a vane (2) for terminating in a foot (3), where the foot includes an upstream spoiler (4) and a downstream spoiler (5). The upstream spoiler and the downstream spoiler include hooks (7, 8) that are projected to generate axial thrust for rings of a turbine. The hooks include an oblique...

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Bibliographische Detailangaben
Hauptverfasser:	BASSERY JOSSERAND, DOREMUS SIBYLLE, DUPEYRE RAPHAEL, BOULAY VINCENT
Format:	Patent
Sprache:	eng ; fre
Schlagworte:	BLASTING ENGINE PLANTS IN GENERAL HEATING 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 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 blade has a vane (2) for terminating in a foot (3), where the foot includes an upstream spoiler (4) and a downstream spoiler (5). The upstream spoiler and the downstream spoiler include hooks (7, 8) that are projected to generate axial thrust for rings of a turbine. The hooks include an oblique external face presenting a groove, where the external face presents inclination angle with a longitudinal axis of the blade ranging between 20 and 45 degree. The hooks comprise a trapezoidal shaped section. An independent claim is also included for a method for manufacturing a blade. L'invention concerne une aube (1) de turbine comprenant une pale (2) se terminant par un pied (3), le pied (3) comprenant : - un becquet amont (4) et un becquet aval (5), - chaque becquet (4, 5) comprenant un crochet (7, 8) en saillie apte à former une butée axiale pour des anneaux (22) de la turbine, caractérisée en ce qu'au moins l'un des crochets (7, 8) comprend une face (16) externe présentant une rainure (17).