Invention Grant
- Patent Title: Axial springs for rotor hub assembly
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Application No.: US15359594Application Date: 2016-11-22
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Publication No.: US10308356B2Publication Date: 2019-06-04
- Inventor: Dalton T Hampton , Thomas Clement Parham, Jr.
- Applicant: Bell Helicopter Textron Inc.
- Applicant Address: US TX Fort Worth
- Assignee: Bell Helicopter Textron Inc.
- Current Assignee: Bell Helicopter Textron Inc.
- Current Assignee Address: US TX Fort Worth
- Agency: Lawrence Youst PLLC
- Main IPC: B64C27/32
- IPC: B64C27/32 ; B64C27/35 ; B64C27/43 ; B64C27/78 ; B64C27/82

Abstract:
A rotor hub assembly for a rotorcraft includes a yoke forming a bearing bore. The yoke has a teetering axis extending through the bearing bore. The rotor hub assembly includes a flapping bearing disposed in the bearing bore. The flapping bearing is operable to regulate teetering of the yoke about the teetering axis. The rotor hub assembly includes an axial spring abutting the flapping, thereby reducing movement of the flapping bearing along the teetering axis.
Public/Granted literature
- US20180141650A1 Axial Springs for Rotor Hub Assembly Public/Granted day:2018-05-24
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