The invention relates to a propeller blade (34) radially extending between a blade foot (38) and a blade head (36), and comprising a leading edge (40) and a trailing edge (42), in addition to an active surface and a passive surface. According to the invention, along the leading edge (30), the angle (a) between the radial direction and a tangent to the trailing edge passes through a local maximum zmax arranged between 60 and 80 % of the height of the blade (34). Furthermore, the passive surface of the blade (34) comprises an indentation (54) extending axially from the leading edge (40) up to the trailing edge, and arranged at the top of the blade (34) between the local maximum zmax and the blade head (34).
Propeller blade for turbomachine
2015-08-12
Patent
Electronic Resource
English
BLADE, PARTICULARLY ADJUSTABLE-PITCH BLADE, PROPELLER WITH SUCH BLADE AND TURBOMACHINE
European Patent Office | 2016
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