Patent ID: 9567070
Date: 2017-02-14
CPC Classifications: B64C

Claim:
1. A rotor system for rotor aircraft, the rotor system comprising: a rotor hub comprising a plurality of rotor blades; a rotatable rotor mast coupled to the rotor hub; a swashplate assembly comprising a non-rotating ring engaged with a rotatable ring, wherein the rotatable ring is configured to rotate with the rotor mast, and wherein the non-rotating ring is configured to engage and guide the rotatable ring; a plurality of pitch links mechanically coupling the rotatable ring to the plurality of rotor blades, wherein the pitch links are configured to control pitch angle of each of the rotor blades; and a swashplate actuator system comprising a first actuator and a second actuator, wherein the first and the second actuators are positioned about a vertical axis of the rotatable rotor mast, wherein the first actuator and the second actuator are mechanically coupled to a stationary surface and the non-rotating ring, the first actuator and the second actuator are configured to tilt the non-rotating ring about a single axis of rotation; and a trim actuator mechanically coupled to the non-rotating ring and a translatable sleeve positioned about the rotatable rotor mast, the trim actuator is configured to tilt the non-rotating ring about a second axis of rotation different from the single axis of rotation.