A variable pitch propeller blade (10) for an aircraft turbine engine is disclosed, said blade (10) comprising an airfoil (12) connected to a root (14), the root (14) comprising a body (24) housed in an annular barrel (26) extending around a pitch axis (A) of the blade, characterized in that the body (24) comprises:-a free end (28) opposite the airfoil (12); -a shoulder (30) facing the airfoil (12); and-a ball portion (32) located between the free end portion (28) and the shoulder portion (30), said ball portion (32) having a cross section referred to as an intermediate section having a maximum value Sm, the cylinder (26) being fixed to the body (24) and covering and mating with at least a portion of the shoulder portion (30) and the ball portion (32).
公开了一种用于飞行器涡轮发动机的可变螺距螺旋桨桨叶(10),所述桨叶(10)包括连接到根部(14)的翼型件(12),根部(14)包括容纳在环形筒体(26)中的主体(24),该环形筒体围绕叶片的螺距轴线(A)延伸,其特征在于,主体(24)包括:‑自由端部(28),该自由端部与翼型件(12)相对;‑肩部(30),该肩部朝向翼型件(12);以及‑球部(32),该球部位于自由端部(28)和肩部(30)之间,所述球部(32)具有被称为中间截面的横截面,该中间截面具有最大值Sm,筒体(26)固定到主体(24),并且覆盖且与肩部(30)和球部(32)的至少一部分匹配。
Aircraft turbine engine comprising variable pitch propeller blades
包括可变螺距螺旋桨桨叶的飞行器涡轮发动机
2023-05-02
Patent
Electronic Resource
Chinese
IPC: | B64C AEROPLANES , Flugzeuge |
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