An aircraft propeller blade including a streamlined structure constituted by at least one piece of fiber reinforcement obtained by three-dimensionally weaving yarns and densified by a matrix, together with a spar including an enlarged portion extending outside the fiber reinforcement and forming the root of the blade, and a shaping portion present in a housing arranged inside the fiber reinforcement. The fiber reinforcement includes a non-interlinked zone forming the housing inside the fiber reinforcement. The non-interlinked zone opens out into the bottom portion and into the rear edge of the fiber reinforcement so as to form an opening for inserting the shaping portion of the spar into the housing of the fiber reinforcement. The opening present in the rear edge of the fiber reinforcement extends over a height that is less than the height of the housing.
PALE D'HÉLICE COMPOSITE POUR AÉRONEF
COMPOSITE ROTOR BLADE FOR AIRCRAFT
KOMPOSIT-ROTORBLATT FÜR LUFTFAHRZEUG
2018-03-28
Patent
Electronic Resource
French
AUBE OU PALE D'HELICE COMPOSITE AVEC LONGERON INTEGRE POUR AERONEF
European Patent Office | 2020
|European Patent Office | 2018
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