FIXED ENGINE AND ROTATING PROPROTOR ARRANGEMENT FOR A TILTROTOR AIRCRAFT

摘要

A tiltrotor aircraft includes a fuselage; a wing member having a first rib, a second rib, a first spar, second spar; and an upper wing skin; an engine disposed at a fixed location relative to the wing member; and a proprotor having a spindle gearbox, rotor mast, and a plurality of rotor blades drivable in rotation about the rotor mast, the spindle gearbox being rotatable about a conversion axis. The spindle gearbox is located above the upper wing skin of the wing member.

主权项

1. A propulsion system for a tiltrotor aircraft, the propulsion system comprising:
an engine disposed at a fixed location relative to a wing member, the wing member having a first rib, a second rib, a first spar, second spar; and an upper wing skin; a proprotor mechanically coupled to the engine, the proprotor comprising:
a plurality of rotor blades;a rotor mast;a spindle gearbox that is rotatable about a conversion axis; wherein the spindle gearbox is located above the upper wing skin.