Invention Grant
- Patent Title: Rotor blade spacing for vibration attenuation
- Patent Title (中): 转子叶片间距用于振动衰减
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Application No.: US13321356Application Date: 2009-05-22
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Publication No.: US08500062B2Publication Date: 2013-08-06
- Inventor: John E. Brunken, Jr.
- Applicant: John E. Brunken, Jr.
- Applicant Address: US RI Providence
- Assignee: Textron Innovations Inc.
- Current Assignee: Textron Innovations Inc.
- Current Assignee Address: US RI Providence
- Agent James E. Walton; J. Oliver Williams
- International Application: PCT/US2009/044955 WO 20090522
- International Announcement: WO2010/134923 WO 20101125
- Main IPC: B64C27/10
- IPC: B64C27/10
Abstract:
A rotor system for a rotorcraft, the rotor system is a rotor hub having six rotor blades attached to a rotor mast via a rotor yoke assembly. Each rotor blade is angularly spaced in 30° and 90° alternating angular increment about a mast axis of rotation. Such rotor blades spacing reduces the vibration that is translated into the rotorcraft through the rotor mast.
Public/Granted literature
- US20120061526A1 Rotor Blade Spacing for Vibration Attenuation Public/Granted day:2012-03-15
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