公开(公告)号：US20130336818A1

公开(公告)日：2013-12-19

申请号：US13932563

申请日：2013-07-01

Applicant: ABB Oy

Inventor： Sami KANERVA ,  Kimmo KOKKILA ,  Mikko KAJAVA

IPC: F04B17/03

CPC classification number: F04B17/03 ,  B60L2200/32 ,  B63H5/08 ,  B63H21/17

Abstract: An arrangement is disclosed for supplying propulsion power to a contra rotating propellers (CRP) propulsion system in a marine vessel, which arrangement can include a first propeller driven by a rotating power unit, and a second propeller driven by an AC motor. The second propeller can be rotated in an opposite direction relative to the first propeller, wherein an AC generator is driven by the rotating power unit and the AC generator is electrically connected to the AC motor. The rotation speed of the second propeller is between for example 95% and 150% of the rotation speed of the first propeller. The AC motor and the AC generator have the same electrical frequency. The pole number of the AC generator is from for example 2 to 40 and the pole number of the AC motor is from for example 2 to 40.

Abstract translation: 公开了一种用于向船舶中的反转旋转推进器（CRP）推进系统提供推进力的装置，该装置可包括由旋转动力单元驱动的第一螺旋桨和由AC电动机驱动的第二螺旋桨。 第二螺旋桨可以相对于第一螺旋桨在相反方向旋转，其中交流发电机由旋转动力单元驱动，交流发电机电连接到交流电动机。 第二螺旋桨的转速在第一螺旋桨的转速的例如95％至150％之间。 交流电机和交流发电机具有相同的电气频率。 交流发电机的极数例如为2〜40，交流电动机的极数为例如2〜40。