Blade for a turbo device with a vortex-generator

Details Blade for a turbo device with a vortex-generator Blade for a turbo device with a vortex-generator

F - Mech Eng,Light,Heat,Weapons

01

D

F01D 5/14 (2006.01)

Patent

CA 2731142

The present invention relates to a blade construction for a turbo device, preferably a blade array of a low-pressure turbine, on the inlet-side profile surface of which a vortex generator is arranged downstream from the speed maximum. The vortex generator is formed by a surface undulation with at least one wave, the wave tail of which runs in the form of a wave trough and/or a wave peak in the blade vertical direction.

L'invention concerne une structure d'aube d'une turbomachine, notamment d'une grille d'aubes d'une turbine basse pression, un générateur de tourbillon étant disposé sur la surface profilée côté aspiration de la structure d'aube, en aval du maximum de vitesse. Le générateur de tourbillon est formé par une onde de surface décrivant au moins une oscillation, dont le dos s'étend sous forme d'un creux d'onde et/ou d'un sommet d'onde en direction du haut de l'aube.

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