Back to results
US 9,199,732 B2Granted
Tilt rotor aircraft with fixed engine arrangement
AssigneeTextron Innovations Inc.
InventorsMark L. Isaac, David A. Elliott, Brent C. Ross
Life of this patent
Estimating the term…
Abstract
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.
Claims20
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.
5 more elements
A tilt rotor aircraft comprising:
- a fuselage;
- a wing member;
- an outboard engine in a first fixed location on the wing member of the tilt rotor aircraft;
- an inboard engine in a second fixed location on the wing member of the tilt rotor aircraft;
- and
- a prop-rotor pylon powered by the outboard engine and the inboard 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;
- wherein the outboard engine is located outboard of the prop-rotor pylon;
- wherein the inboard engine is located inboard of the prop-rotor pylon;
- and
- wherein the prop-rotor pylon rotates relative to the winq member.
7 more elements
Dependencies are inferred from the claim text.