Tandem blade design

F - Mech Eng,Light,Heat,Weapons – 01 – D

Patent

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Details

F01D 9/04 (2006.01) F01D 5/14 (2006.01)

Patent

CA 2748805

The present invention relates to a tandem blade design for an axial turbomachine, comprising a front blade and a rear blade disposed with an offset thereto in the circumferential direction and in the axial direction. The rear blade is profiled and positioned with respect to the front blade such that it raises the speed level at the trailing edge of the front blade in a predetermined working range in interaction with the front blade.

La présente invention concerne une construction d'aubes en tandem pour une turbomachine axiale constituée d'une aube avant ainsi que d'une aube arrière disposée de manière décalée par rapport à celle-ci dans la direction périphérique ainsi que dans la direction axiale. L'aube arrière est profilée et positionnée par rapport à l'aube avant de manière à relever le niveau de vitesse sur le bord arrière de l'aube avant en interagissant avec l'aube avant dans la plage de travail prédéterminée.

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