发明授权
- 专利标题： Helicopter rotor comprising a vibration damper, and method for updating the same
- 专利标题（中）： 包括减震器的直升机转子及其更新方法
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申请号： US12665303申请日： 2008-06-19
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公开(公告)号： US08573935B2公开(公告)日： 2013-11-05
- 发明人: Santino Pancotti
- 申请人： Santino Pancotti
- 申请人地址： IT Samarate
- 专利权人： Agusta S.p.A.
- 当前专利权人： Agusta S.p.A.
- 当前专利权人地址： IT Samarate
- 代理机构： McCracken & Frank LLC
- 优先权： ITTO2007A0442 20070620
- 国际申请： PCT/IB2008/001594 WO 20080619
- 国际公布： WO2008/155632 WO 20081224
- 主分类号： B64C27/32
- IPC分类号： B64C27/32
摘要：
A rotor for a helicopter, having: a hub rotating about an axis and in turn having a number of blades; and an at least partly hollow drive shaft connectable to a drive of the helicopter and connected functionally to the hub to rotate the hub about the axis; the rotor also having vibration damping means in turn having a mass, and an elastically deformable member connected to the mass and supported by the shaft; the member extending at least partly inside the shaft, and being elongated parallel to the axis; and the mass vibrating, in use, at such a frequency as to oppose transmission to the shaft of the vibration produced by rotation of the hub and blades.
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