Patent ID: 9366141
Filing Date: 2016-06-14
CPC Classification: B64C,F01D

Claim Text:
1. A propeller rotor comprising: a hub mounting a plurality of blades; a drive shaft for driving said hub, and said blades about a central axis; a motor being operably connected to drive at least one counterweight; a sensor for sensing vibration on said propeller rotor, and communicating with a controller, said controller controlling said motor to change a position of said counterweight in response to sensed vibration; and said motor drives at least two counterweights, through one-way clutches, with said motor being operable to rotate in opposed directions of rotation, and a first of said one-way clutches associated with a first of said counterweights transmits rotation when said motor is driven in a clockwise direction, and a second of said one-way clutches associated with a second of said counterweights transmits rotation when said motor is rotated in a counter-clockwise direction.