Fan module with variable pitch blades

• Main Authors: BELJAMBE, C, DRIC, CHARIER GILLES ALAIN MARIE
• Format: Patent
• Language: Chinese; English
• Published: 26.03.2024
• Subjects: AEROPLANES; AIRCRAFT; AVIATION; BLASTING; COMBUSTION ENGINES; COSMONAUTICS; ENGINE PLANTS IN GENERAL; HEATING; HELICOPTERS; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS; JET-PROPULSION PLANTS; LIGHTING; MACHINES OR ENGINES IN GENERAL; MECHANICAL ENGINEERING; NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAMTURBINES; NON-POSITIVE DISPLACEMENT PUMPS; PERFORMING OPERATIONS; POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS; STEAM ENGINES; TRANSPORTING; WEAPONS

The invention relates to a fan module (1) with variable pitch blades for a propulsion unit having a longitudinal axis (X), comprising:-a rotating housing (3) carrying blades (5); -a pitch change system (22) comprising a control device (23) comprising an annular actuator having a fixed body (25) mounted to the rotating housing and a body (27) translatable relative to the fixed body along a longitudinal axis, and a connection mechanism (24) comprising a synchronizing ring (34) coupled to the moving body, a synchronizing ring connected to the blades (5) and configured to translate along the longitudinal axis (X) by the moving body to vary the pitch of the blades; and-a feathering device comprising a flight weight (43) coupled to the ring by a connecting rod, the end of which comprises a ball joint (62, 63). 本发明涉及一种用于具有纵向轴线(X)的推进单元的、具有可变桨距叶片的风扇模块(1)，该风扇模块包括：-旋转壳体(3)，该旋转壳体承载叶片(5)；-桨距改变系统(22)，该桨距改变系统包括控制装置(23)和连接机构(24)，该控制装置包括环形致动器，该环形致动器具有安装到旋转壳体上的固定主体(25)和能够沿着纵向轴线相对于固定主体平移的主体(27)，该连接机构包括联接到移动主体的同步环(34)，该同步环连接到叶片(