Invention Grant
US08496434B2 Differential pitch-control to optimize co-rotating stacked rotor performance
有权
差分俯仰控制，以优化共旋转堆叠转子性能
- Patent Title: Differential pitch-control to optimize co-rotating stacked rotor performance
- Patent Title (中): 差分俯仰控制，以优化共旋转堆叠转子性能
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Application No.: US13321312Application Date: 2009-05-21
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Publication No.: US08496434B2Publication Date: 2013-07-30
- 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/US2009/044895 WO 20090521
- International Announcement: WO2010/134921 WO 20101125
- Main IPC: B64C27/605
- IPC: B64C27/605
Abstract:
A rotor system for a rotorcraft having at least one rotor blade pair operably associated with a differential pitch assembly operably for controlling a pitch angle of an upper rotor blade and the lower rotor blade in the rotor blade pair. Operation of the differential pitch assembly changes the pitch of the upper rotor blade more severely than the pitch of the lower rotor blade. As such, the rotor system is configured to provide optimum pitch of the upper and lower rotor blades during a helicopter mode and an airplane mode.
Public/Granted literature
- US20120063897A1 Differential Pitch-Control to Optimize Co-Rotating Stacked Rotor Performance Public/Granted day:2012-03-15
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