| 摘要 |
Arrangement for steering and supplying propulsion power to a contra rotating propellers (CRP) propulsion system in a marine vessel, which arrangement comprises a first propeller (44) driven by a rotating power unit (40) and a second propeller (48) driven by an AC motor (50) whereby the second propeller (48) is rotated in the opposite direction as the first propeller (44), and an AC generator (42) coupled to mechanical output shaft of the power unit (40) and driven by a rotating power unit, whereby the AC generator (42) is electrically connected to the AC motor (50). According the arrangement the AC motor (50) and the AC generator (42) have the same electrical frequency, another electrical power source (60,61,62) is electrically connectable to the AC motor (50) parallel to the AC generator (42), the shaft (47) of the second propeller is mounted rotatable in a support structure (16,24) which is attached to a hull of the marine vessel (2), and a rudder (10), which is supported in a manner allowing pivotal movement of the rudder (10) relative to the support structure (16, 24). |
