| 摘要 |
Marine propulsion unit, where said unit comprises a streamlined body, where said body has a front end and a rear end, where in use the front end will be facing upstream and the rear end downstream, where the front end has a larger cross section perpendicular to the intended travelling direction than the rear end, and where the front end is provided with a water inlet opening, where said opening is in communication with an impeller, which impeller rotates around an axis parallel to the intended travelling direction, where said impeller has one or more vanes whereby the water entering the front end is expelled radially away from the impeller's rotating axis, where said expelled water is forced through one or more rectifier nozzles directing said expelled water along the outer surface towards the rear end of the streamlined body. |
