Engine and rotatable proprotor configurations for a tiltrotor aircraft

US11148798B2 · kind B2 · utility

Assignee

• Textron Innovations Inc. · US

Inventors

• Colton Gilliland · Roanoke, US
• Jeffrey Matthew Williams · Hudson Oaks, US
• Michael E. Rinehart · Fort Worth, US
• James Everett Kooiman · Fort Worth, US
• Mark Alan Przybyla · Keller, US
• Clegg Benjamin Brian Smith · Keller, US
• Eric Stephen Olson · Fort Worth, US
• George Ryan Decker · Mansfield, US
• David R. Bockmiller · Fort Worth, US

Key dates

• Filing date: Jun 22, 2018
• Grant date: Oct 19, 2021
• Expiry date: Sep 29, 2039

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B64D35/00
• WIPO field: Transport
• WIPO sector: Mechanical engineering

Abstract

A tiltrotor aircraft includes a propulsion system with a fixed engine and a rotatable proprotor. The engine is located on the top surface of the wing of the tiltrotor aircraft, and the rotatable proprotor assembly is also mounted on the top surface of the wing. The engine and proprotor assembly are connected via a series of one or more gearboxes that route the engine output from the engine to the proprotor.