PALE POUR ROTOR D'HYDROLIENNE, ROTOR D'HYDROLIENNE COMPRENANT UNE TELLE PALE, HYDROLIENNE ASSOCIEE ET PROCEDE DE FABRICATION D'UNE TELLE PALE

摘要

The blade (24) has a blade part including a profile (40) cross-sectioned according to a cutting plane. A thick portion (42) and a thin portion (44) of the profile include maximum thicknesses (E1, E2) along a direction perpendicular to an upper surface (EXT), where the maximum thickness of the thick portion is 4 times greater than the maximum thickness of the thin portion. Curvilinear length (L2) of the thin portion lies between 0.25 times of length (C) of a chord (46) that is arranged between a leading edge (36) and a trailing edge (38) and 0.9 times of the length of the chord. An independent claim is also included for a method for manufacturing a blade.