The invention relates to a composite blade (5) for a turbine engine rotor, such as an unducted propeller, comprising a skin (6) made of woven fibres and forming the outer contour of the blade, and an attachment (11) having a cylindrical geometry in the direction of a span starting from the blade root (9), the invention relates to a composite blade (1) comprising a skin (6) and a blade (5) attached to the skin (6) and intended to retain the blade (5) on the hub of the rotor, characterized in that the composite blade further comprises a spar (16) having the structure of hollow tubes made of woven carbon fibers, the spar being fixed to the attachment (11) and extending inside the skin (6) over at least a portion of the span of the blade (5). The invention also relates to a propeller comprising said blade and to a method for manufacturing said blade.
本发明涉及一种用于涡轮发动机转子的复合叶片(5),该涡轮发动机转子例如为无涵道螺旋桨,该复合叶片包括蒙皮(6)和附接件(11),蒙皮由编织的纤维制成,并且形成叶片的外部轮廓,附接件在从叶片根部(9)开始的跨度的方向上具有圆柱形几何形状,附接件旨在将叶片(5)保持在转子的毂上,其特征在于,复合叶片还包括翼梁(16),翼梁具有由编制的碳纤维制成的中空的管的结构,翼梁被固定到附接件(11),并且在蒙皮(6)的内部在叶片(5)的跨度的至少一部分上延伸。本发明还涉及一种包括所述叶片的螺旋桨以及一种用于制造所述叶片的方法。
Composite blade for turbine engine rotor
用于涡轮发动机转子的复合叶片
2022-10-14
Patent
Electronic Resource
Chinese
IPC: | B64C AEROPLANES , Flugzeuge / B29D PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE , Herstellen besonderer Gegenstände aus Kunststoff oder aus Stoffen in plastischem Zustand / F01D Strömungsmaschinen [Kraft- und Arbeitsmaschinen oder Kraftmaschinen], z.B. Dampfturbinen , NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES |
METHOD FOR PRODUCING A WIND TURBINE ROTOR BLADE AND WIND TURBINE ROTOR BLADE
European Patent Office | 2018
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