Patent · US Active

Tiltrotor aircraft having rotatable wing extensions

US10011349B2 · kind B2 · utility

18Cited by

16References

20Claims

0Family size

Assignee

Bell Helicopter Textron Inc. · US

Inventors

Steven Ray Ivans · Fort Worth, US
Nathan Wu · Fort Worth, US

Key dates

Filing date	Aug 31, 2016
Grant date	Jul 3, 2018
Priority date	—
Expiry date	Mar 24, 2037

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02T50/10
WIPO fieldTransport
WIPO sectorMechanical engineering

Abstract

A pylon assembly for a tiltrotor aircraft includes a fixed pylon having an outboard end. A rotor assembly is rotatably coupled to the fixed pylon and is operable to rotate between a generally vertical orientation in a vertical takeoff and landing mode and a generally horizontal orientation in a forward flight mode. The rotor assembly includes a proprotor operable to produce a generally vertical slipstream in the vertical takeoff and landing mode and a generally horizontal slipstream in the forward flight mode. A wing extension is rotatably coupled to the outboard end of the fixed pylon. The wing extension is operable to rotate generally with the rotor assembly such that a minimal dimension of the wing extension remains in the slipstream of the proprotor.

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