Tiltrotor aircraft rotating proprotor assembly

US11492131B2 · kind B2 · utility

Assignee

• Textron Innovations Inc. · US

Inventors

• Brent Chadwick Ross · Flower Mound, US
• Michael E. Rinehart · Fort Worth, US
• Jeffrey Matthew Williams · Hudson Oaks, US
• Clegg Benjamin Brian Smith · Keller, US
• Nick Pravanh · Fort Worth, US

Key dates

• Filing date: May 3, 2021
• Grant date: Nov 8, 2022
• Expiry date: May 3, 2041

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B64C29/0033
• WIPO field: Transport
• WIPO sector: Mechanical engineering

Abstract

An aircraft including a nacelle configured as a housing for an engine and disposed at a fixed location relative a wing member; a proprotor housing coupled to the nacelle, the proprotor housing configured to selectively rotate between a horizontal orientation and a non-horizontal orientation; a door hingedly coupled to the proprotor housing by a first hinge joint and hingedly coupled to the nacelle by a second hinge joint. An aspect includes an aircraft with a proprotor coupled to a wing member, the proprotor comprising a forward portion and an aft portion; wherein the forward portion is configured to selectively pivot between a horizontal orientation and a non-horizontal orientation about a conversion axis C; and wherein when the forward portion is in a non-horizontal orientation, the aft portion is in a horizonal orientation.