| 摘要 |
The system, for use with a submerged propulsion unit, e.g. hydrojet, nacelle that can pivot about a fixed vertical axle relative to the hull of a vessel, consists of a pivot (10) fixed to a shaft (12) and made in the form of a large-diameter double conical disc between two flanges (3A, 3B) that are also conical and match the shape of the pivot. The pivot is fixed relative to the vessel's hull and water is circulated between the pivot and the flanges by an auxiliary pumping group (5) linked to cavities (4) in the flanges facing the pivoting surfaces (11A, 11B) of the disc. |
