Invention Grant
- Patent Title: Soft in-plane and stiff out-of-plane rotor system
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Application No.: US15603019Application Date: 2017-05-23
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Publication No.: US10543916B2Publication Date: 2020-01-28
- Inventor: Ken Shundo , Mithat Yuce , Frank B. Stamps
- Applicant: BELL HELICOPTER TEXTRON INC.
- Agent James E. Walton
- Main IPC: B64C27/80
- IPC: B64C27/80 ; B64C27/52 ; B64C27/10 ; B64C27/32 ; B64C27/35 ; B64C27/48 ; B64C27/51

Abstract:
A rotor assembly includes a yoke operably associated with a rotor blade. The yoke includes a first device and a second device that attach the rotor blade to the yoke. The first device is configured to allow transverse movement of the rotor blade about a chord axis and rotational movement about a pitch-change axis. The second device is configured to allow rotational movement of the rotor blade solely about the pitch-change axis. The method includes rotating rotor assembly about a first plane of rotation, while retaining a relatively stiff out-of-plane rotation and a relatively soft in-plane rotation during flight.
Public/Granted literature
- US20170259916A1 Soft In-Plane and Stiff Out-of-Plane Rotor System Public/Granted day:2017-09-14
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