Tilt rotor aircraft with fixed engine arrangement

摘要

The system of the present application includes an engine and pylon arrangement for a tilt rotor aircraft in which the engine is fixed in relation to a wing portion of the aircraft, while the pylon is rotatable. The pylon supports a rotor hub having a plurality of rotor blades. Rotation of the pylon allows the aircraft to selectively fly in a helicopter mode and an airplane mode, as well as any combination thereof.

主权项

1. A rotor system for a tilt rotor aircraft, the rotor system comprising:
an outboard engine in a first fixed location on a wing member of the tilt rotor aircraft; a prop-rotor pylon in power communication with the outboard engine, the prop-rotor pylon being configured to selectively rotate between a vertical position and a horizontal position, the prop-rotor pylon comprising a plurality of rotor blades; an outboard input drive shaft coupled between the outboard engine and an outboard input gearbox; and an outboard gearbox drive shaft being perpendicular to the outboard input drive shaft and coupled to the outboard input drive shaft; wherein the prop-rotor pylon selectively rotates about the outboard gearbox drive shaft when orienting between the vertical position and the horizontal position; and wherein the prop-rotor pylon rotates relative to the wing member.