The invention relates to an unducted propeller (12) with variable pitch blades for an aircraft propeller or a wind turbine propeller, comprising a hub (16) equipped with a receptacle (35) by which a plurality of blades are pivotally received about a radial axis, and a housing (24) of the hub (16), a circular opening (28) of the receptacle (35) opening into the housing, each blade (20) comprises:-a root (32) rotatably mounted in the associated housing (35), a radially oriented blade (34), and a disc-shaped platform (52) extending from the blade (34) to the edge of the circular opening (28), the blade comprising at least one skin (48) comprising a free lower edge (50) facing the root (32) side, characterized in that the platform (52) is attached to the free lower edge (50) of the skin (48).
本发明涉及具有可变节距叶片的无涵道螺旋桨(12),用于飞行器推进器或风力涡轮推进器,包括装备有容置部(35)的毂部(16)和毂部(16)的外壳(24),多个扇叶由容置部围绕径向轴线可枢转地接纳,容置部(35)的圆形开口(28)通至外壳,每个扇叶(20)包括:‑可旋转地安装在相关的容置部(35)中的根部(32),径向定向的叶片(34),和盘形平台(52),平台从叶片(34)延伸到圆形开口(28)的边缘,扇叶包括至少一个表皮(48),表皮包括朝向根部(32)一侧的自由下边缘(50),其特征在于,平台(52)被附接到表皮(48)的自由下边缘(50)上。
Unducted propeller with variable pitch blades including platforms with reduced perturbation
具有包括扰动减少的平台的可变节距叶片的无涵道螺旋桨
18.04.2023
Patent
Elektronische Ressource
Chinesisch
IPC: | B64C AEROPLANES , Flugzeuge |
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