Invention Grant
- Patent Title: Rotor hub with blade-to-blade dampers attached to the pitch change axis
-
Application No.: US15720626Application Date: 2017-09-29
-
Publication No.: US10773798B2Publication Date: 2020-09-15
- Inventor: Andrew Paul Haldeman , Dalton T. Hampton , Bryan Marshall , Frank Bradley Stamps
- Applicant: Bell Helicopter Textron Inc.
- Applicant Address: US TX Fort Worth
- Assignee: Bell Textron Inc.
- Current Assignee: Bell Textron Inc.
- Current Assignee Address: US TX Fort Worth
- Agency: Lightfoot & Alford PLLC
- Main IPC: B64C27/39
- IPC: B64C27/39 ; B64C27/00 ; B64C27/605 ; B64C27/72 ; B64C27/48 ; B64C27/06

Abstract:
An aircraft rotor assembly has a yoke and a plurality of rotor blade assemblies coupled thereto. Each of the rotor blade assemblies include a rotor blade, a bearing, and a blade grip coupling the rotor blade to the bearing. Each of the rotor blades is rotatable about a lead-lag axis, flap axis, and a pitch change axis, wherein all the axes intersect within the bearing. Adjacent pairs of rotor blade assemblies are coupled together via a damper assembly that is coupled to the pitch change axis of each of the rotor blade assemblies.
Public/Granted literature
- US20190100300A1 Rotor Hub with Blade-to-Blade Dampers Attached to the Pitch Change Axis Public/Granted day:2019-04-04
Information query