Turbine engine vane equipped with a cooling circuit and lost-wax method for manufacturing such a vane

The invention relates to a turbine engine vane including a blade extending along a radial axis and a first cooling circuit arranged inside the blade, the first cooling circuit including a first cavity and a second cavity disposed downstream of the first cavity in a direction of circulation of a cool...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	Simon, Vianney, Cariou, Romaine Pierre, Pelleterat De Borde, Myriam, Rollinger, Adrien Bernard Vincent
Format:	Patent
Sprache:	eng
Schlagworte:	BLASTING CASTING CASTING OF METALS CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES ENGINE PLANTS IN GENERAL FOUNDRY MOULDING HEATING LIGHTING MACHINES OR ENGINES IN GENERAL MECHANICAL ENGINEERING NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAMTURBINES PERFORMING OPERATIONS POWDER METALLURGY STEAM ENGINES TRANSPORTING WEAPONS
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Beschreibung
Zusammenfassung:	The invention relates to a turbine engine vane including a blade extending along a radial axis and a first cooling circuit arranged inside the blade, the first cooling circuit including a first cavity and a second cavity disposed downstream of the first cavity in a direction of circulation of a coolant in the blade, the first and second cavities radially extending inside the blade and being at least partly separated by a first radial partition having a radially internal free end, which at least partly demarcates a first coolant passage connecting the first and second cavities. According to the invention, the radially internal free end is enlarged by having a general transverse section substantially in the form of a keyhole.