首页> 外国专利> PROPELLER BLADE WITH HOUSINGS AND REINFORCING LENGTHS AND PROPELLER COMPRISING AT LEAST ONE SUCH BLADE

PROPELLER BLADE WITH HOUSINGS AND REINFORCING LENGTHS AND PROPELLER COMPRISING AT LEAST ONE SUCH BLADE

机译:螺旋桨式桨叶,带壳体和加固长度,螺旋桨式桨叶至少有一个

摘要

The invention relates to a propeller blade comprising a hollow envelope (1) forming an upper surface (5) and a lower surface (4) extending from a blade root to a free end in the span direction, and a chord disposed in the hollow shell (1) and comprising a box spar (8) having a plurality of flanges (9a, 9b, 10a, 10b) in surface contact with the hollow shell (1) so as to ensure structural support of the hollow envelope (1) and at least two cavities (15, 16) spaced apart from one another in the direction of the rope (25), characterized in that it further comprises at least two reinforcing beams (6, 7) extending between the frame and the hollow envelope.
机译:螺旋桨叶片技术领域本发明涉及一种螺旋桨叶片,其包括形成有上表面(5)和下表面(4)的中空包壳(1),该中空包壳从叶片根部向翼展方向上的自由端延伸,并且弦杆设置在中空壳体中(1)包括箱形梁(8),箱形梁(8)具有多个与中空壳(1)表面接触的凸缘(9a,9b,10a,10b),以确保对中空包壳(1)以及至少两个空腔(15、16)在绳索(25)的方向上彼此间隔开,其特征在于,它还包括在框架和中空封套之间延伸的至少两个加强梁(6、7)。

著录项

  • 公开/公告号FR2984848A1

    专利类型

  • 公开/公告日2013-06-28

    原文格式PDF

  • 申请/专利权人 RATIER FIGEAC;

    申请/专利号FR20110004086

  • 发明设计人 STANISLAS TUTAJ;BRUNO PETELLAZ;

    申请日2011-12-23

  • 分类号B64C11/24;B64C11/26;

  • 国家 FR

  • 入库时间 2022-08-21 16:20:57

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