Tiltrotor aircraft having pillow block mounted pylon assemblies

US10029802B2 · kind B2 · utility

Assignee

• Bell Helicopter Textron Inc. · US

Inventors

• Jeffrey Matthew Williams · Hudson Oaks, US
• James Elbert King · Fort Worth, US
• James Everett Kooiman · Fort Worth, US
• Andrew G. Baines · Fort Worth, US
• Christopher R. Jackson · Fort Worth, US
• George Ryan Decker · Mansfield, US
• Daniel J. Sweigard · Euless, US

Key dates

• Filing date: Dec 8, 2017
• Grant date: Jul 24, 2018
• Expiry date: Dec 8, 2037

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T74/1966
• WIPO field: Transport
• WIPO sector: Mechanical engineering

Abstract

A pedestal assembly for receiving a pylon assembly of a tiltrotor aircraft having a helicopter mode and an airplane mode, the tiltrotor aircraft having an airframe including a fuselage and a wing. The pedestal assembly includes an inboard pedestal supported by the airframe and positioned above the wing. The inboard pedestal includes an inboard bearing assembly disposed within an inboard pillow block housing. The pedestal assembly also includes an outboard pedestal supported by the airframe and positioned above the wing. The outboard pedestal includes an outboard bearing assembly disposed within an outboard pillow block housing. The inboard and outboard bearing assemblies are operable to receive the pylon assembly therein such that the pylon assembly is rotatably mounted between the inboard and outboard pedestals to selectively operate the tiltrotor aircraft between the helicopter mode and the airplane mode.