Patent ID: 7841829
Filing Date: 2010-11-30
Classification: B64C,Y02T

Abstract:
1. A rotor blade assembly comprising: a rotor blade bearing housing; a blade pitch control coupling mounted within said rotor blade bearing housing for rotation about a blade hub axis; an elastomeric bearing mounted to said rotor blade bearing housing; a blade spindle mounted to said elastomeric bearing to define a blade spindle flapping focal point; a spherical bearing mounted within said blade spindle; and a servo-flap pitch control tube mounted within said spherical bearing for rotation about a servo-flap pitch control tube axis, said servo-flap pitch control tube mounted to said blade pitch control coupling at a joint which defines a servo-flap pitch control tube pivot point, said servo-flap pitch control tube pivot point offset from said blade spindle flapping focal point, said servo-flap pitch control tube drives a servo-flap assembly relative a rotor blade.