公开(公告)号：WO2013034946A1

公开(公告)日：2013-03-14

申请号：PCT/IB2011/002094

申请日：2011-09-07

Applicant: MAX PROP S.R.L. ,  BIANCHI, Massimilliano

Inventor： BIANCHI, Massimilliano

IPC: B63H3/00 ,  B64C11/34

CPC classification number: B63H3/008

Abstract: There is described a propeller (1 ) of the type comprising an external cylindrical casing (2) coupled directly or indirectly to an engine shaft in a manner rotatable about the axis (X) of the propeller, and at least one blade (3) provided with at least one fluid dynamic surface (4) constrained to a related blade shaft (5), which is in turn constrained to said external cylindrical casing (2) to be driven in rotation about the axis of the propeller. The blade shaft (5) has its axis (Y) which extends in a direction incident to the axis (X) of the propeller and the at least one fluid dynamic surface is driven by the related blade shaft in rotation about the axis of the propeller. The propeller is characterized in that the at least one fluid dynamic surface (4) is constrained in roto-translation to the related blade shaft (5), in a manner rotatable about, and translatable along, the axis (Y) of the blade shaft (5), in such a manner that the at least one fluid dynamic surface is translatable along the blade shaft, between an initial position and a final position, and the fluid dynamic surface rotates simultaneously from a first fluid dynamic pitch corresponding to said initial position to a second fluid dynamic pitch corresponding to said final position, and vice versa.

Abstract translation: 描述了一种类型的螺旋桨（1），其包括以可围绕螺旋桨的轴线（X）旋转的方式直接或间接地联接到发动机轴的外部圆柱形壳体（2），以及设置有至少一个叶片（3） 其中至少一个流体动力表面（4）被限制到相关的叶片轴（5），所述相关叶片轴（5）又被限制到所述外部圆柱形壳体（2），以围绕所述螺旋桨的轴线旋转。 叶片轴（5）具有沿着入射到螺旋桨的轴线（X）的方向延伸的轴线（Y），并且至少一个流体动力表面由相关的叶片轴围绕螺旋桨的轴线旋转驱动 。 螺旋桨的特征在于，所述至少一个流体动力学表面（4）被以相对于所述叶片轴（5）的轴线（Y）旋转并且可沿着所述叶片轴 （5），使得所述至少一个流体动力表面可以沿着所述叶片轴在初始位置和最终位置之间平移，并且所述流体动态表面从对应于所述初始位置的第一流体动态间距同时旋转 到对应于所述最终位置的第二流体动力间距，反之亦然。