Invention Grant
US08622703B2 Blade provided with a drag damper, and a rotor provided with such a blade
有权
设有阻尼减震器的叶片和设置有这种叶片的转子
- Patent Title: Blade provided with a drag damper, and a rotor provided with such a blade
- Patent Title (中): 设有阻尼减震器的叶片和设置有这种叶片的转子
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Application No.: US12730554Application Date: 2010-03-24
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Publication No.: US08622703B2Publication Date: 2014-01-07
- Inventor: Vincent Girard , Stéphane Mazet , Rémi Metivier , Alain Eberhard
- Applicant: Vincent Girard , Stéphane Mazet , Rémi Metivier , Alain Eberhard
- Applicant Address: FR Marignane Cedex
- Assignee: Eurocopter
- Current Assignee: Eurocopter
- Current Assignee Address: FR Marignane Cedex
- Agency: Brooks Kushman P.C.
- Priority: FR0901466 20090327
- Main IPC: F01D5/00
- IPC: F01D5/00
Abstract:
The present invention relates to a rotorcraft blade (1) provided with at least one spar (3) and an outer covering (4), said blade (1) including a hollow sleeve (10) with a wall (11) that is provided at least with said outer covering (4) secured to said spar (3). The blade includes a rotary damper (20) provided with an inner tubular strength member (21) and an outer tubular strength member (22) that are coaxial and connected together by a ring (23) of viscoelastic material, said inner tubular strength member (21) being secured to said covering (4), and said outer tubular strength member (22) being provided with a fork (25) possessing first and second tines (26, 27) facing each other so as to be suitable for receiving a first ball joint (41) close to the pitch-variation axis (AX1) of said blade (1).
Public/Granted literature
- US20100247312A1 BLADE PROVIDED WITH A DRAG DAMPER, AND A ROTOR PROVIDED WITH SUCH A BLADE Public/Granted day:2010-09-30
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