Patent ID: 8632308
Filing Date: 2014-01-21
Classification: B64C,F16F,Y10T

Abstract:
1. A rotary wing system with at least one rotating blade rotating about a rotation axis, said rotary wing system having a troublesome motion when rotating about said rotation axis, said system including: a fluid damper with a damper fluid for controlling said troublesome motion, said fluid damper having an inboard end and an outboard end, said fluid damper inboard end attached to a first rotary wing system inboard member proximate said rotation axis and said outboard end attached to a second rotary wing system outboard member distal from said rotation axis; said fluid damper containing a damper fluid volume in at least a first working chamber which is worked by a relative motion between said first rotary wing system inboard member and said second rotary wing system outboard member to control said troublesome motion; said fluid damper including a volume compensator channel in fluid communication with said damper fluid, said volume compensator channel including a centrifugal force mass member movable along a volume compensating length of said volume compensating channel, said centrifugal force mass member being comprised of an exterior sliding shell; and wherein a rotation about said rotation axis forces said centrifugal force mass member towards an outboard end of said volume compensating channel and pushes damper fluid from said volume compensator channel towards said at least first working chamber.