| 摘要 |
<p>The invention provides a rotary damper (20) for controlling helicopter motions. The rotary damper includes an outer canister (22) with an inner paddle wheel receiving cavity (26) which receives an inner paddle wheel (60) with upper and lower elastomeric tubular intermediate members (78,80) between the inner paddle wheel and the outer canister The canister and inner paddle wheel form neighboring variable volume chambers (82,84) in liquid communication through liquid damping conduits. A clockwise rotation of the inner paddle wheel about the center of rotation axis (28) relative to the outer canister pumps damper liquid from a second variable volume chamber through a first liquid conduit towards a first variable volume chamber, and a counterclockwise rotation of the paddle wheel relative to the outer canister pumps the damper liquid from the first variable volume chamber through the first liquid conduit towards the second variable volume chamber with the elastomeric tubular intermediate members providing for the relative rotation and containing the damper liquid in the damper.</p> |
