Patent · US Active

Outboard centrifugal force bearing with inboard blade fold axis in a folding rotor blade assembly

US10640205B2 · kind B2 · utility

3Cited by

27References

20Claims

0Family size

Assignee

Bell Helicopter Textron Inc. · US

Inventors

Jared Mark Paulson · Fort Worth, US
Tyler Wayne Baldwin · Keller, US
Kyle Thomas Cravener · Arlington, US

Key dates

Filing date	Dec 18, 2017
Grant date	May 5, 2020
Priority date	—
Expiry date	Aug 30, 2038

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB64C29/0033
WIPO fieldTransport
WIPO sectorMechanical engineering

Abstract

A rotor blade assembly for a tiltrotor aircraft comprising a rotor blade pivotally connected to a yoke with dual concentric blade bolts having a common central axis providing a pivotal axis inboard of an outboard CF bearing and the yoke tip. In use, the compact folded arrangement of the rotor blades reduces folded aircraft dimensions in response to ever increasing restricted storage space parameters.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.