| 摘要 |
A vessel propeller propulsion and/or steering device of the type comprising a propeller assembly mounted about a vertical axis relatively to the vessel, and structure for transfer of drive power to the propeller and rotational power to the propeller assembly from the inside of the vessel, and with structure for mounting and dismounting the propeller assembly in a submerged condition relatively to a downwardly open cavity in the vessel, the propeller assembly comprising a column adapted to be connected to the vessel and containing a hollow steering trunk for transfer of rotational power to the assembly, pivotably and axially movably supported in an intermediate sleeve in the column, a servomotor being provided between the trunk and the column of the propeller assembly for the purpose of effecting controlled axial relative movements of the trunk and the sleeve when mounting or dismounting the propeller assembly. |
