Patent · US Active

Low offset hingeless rotor with pitch change bearings

US8801378B2 · kind B2 · utility

3Cited by

14References

18Claims

0Family size

Assignee

SIKORSKY AIRCRAFT CORPORATION · US

Inventors

Bryan Kenneth Baskin · Arlington, US
Todd David Walker · Fort Worth, US

Key dates

Filing date	Feb 24, 2011
Grant date	Aug 12, 2014
Priority date	—
Expiry date	Apr 1, 2033

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB64C27/39
WIPO fieldTransport
WIPO sectorMechanical engineering

Abstract

A hub assembly for a tilt rotor includes a yoke having a plurality of yoke arms located substantially orthogonal to a central axis of the hub assembly. An inboard pitch change bearing assembly substantially surrounds a yoke arm of the plurality of yoke arms. An outboard pitch change bearing assembly is located at the yoke arm. The inboard pitch change bearing assembly and the outboard pitch change bearing assembly are operably connectable with a rotor blade to allow pitch change of the rotor blade relative to the yoke about a pitch change axis.

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