| 摘要 |
<p>The proposed propulsor comprises, a main engine, a fixed tubular part (A3, A5, A7), a main transmission (AD4, AD1, BD1, BD2) which ends with a substantially vertical shaft (BD3) which operates a bevel gear pair (BD12-BD13) on the substantially horizontal outlet (BD14) of which a propeller (BD15) is placed, an auxiliary transmission which carries out the rotation around a vertical axis of the bottom end of the propeller, a movable assembly (BC1, BC5, B1) which moves vertically with respect to the fixed structure of the boat and is integral in this direction with the bevel gear pair (BD12, BD13) and with the propeller (BD15). It is characterized by the fact that said movable group is made of an inner part which can rotate (BC1, BC5) with respect to a vertical axis which rests vertically, by either two external spaced supports or one continuous support, on a movable carriage (B1) the lower end of which extends downwards at least to the level of a fixed support (A3, A5, A7) integral with the structure of the boat, or else it goes further down.</p> |
