Invention Application
- Patent Title: ADAPTABLE ROTOR CONTROL SYSTEM FOR A VARIABLE NUMBER OF BLADES
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Application No.: US15693397Application Date: 2017-08-31
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Publication No.: US20190061915A1Publication Date: 2019-02-28
- Inventor: Gary Miller , Frank B. Stamps
- Applicant: Bell Helicopter Textron Inc.
- Main IPC: B64C11/32
- IPC: B64C11/32 ; B64C29/00 ; B64C11/06

Abstract:
In one embodiment, a rotor hub comprises a yoke for attaching a plurality of rotor blades, a constant velocity joint to drive torque from a mast to the yoke and to enable the yoke to pivot, and a rotor control system configured to adjust an orientation of the plurality of rotor blades. Moreover, the rotor control system comprises: a swashplate, a phase adapter fulcrum, a plurality of actuators controlled based on a flight control input, a plurality of lower pitch links configured to transfer motion between the plurality of actuators and the swashplate, a plurality of phase adjustment levers configured to adjust a control phase associated with motion transferred between the plurality of actuators and the plurality of lower pitch links, and a plurality of upper pitch links configured to adjust a pitch of the plurality of rotor blades, wherein there are more upper pitch links than lower pitch links.
Public/Granted literature
- US10358207B2 Adaptable rotor control system for a variable number of blades Public/Granted day:2019-07-23
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