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propulsion systems for ships

A technology for propulsion systems and ships, applied in ship propulsion, propulsion components, propulsion transmission devices, etc., can solve the problems of increasing the number of bearings, the length of the propeller shaft, and the poor space utilization, and achieve the effect of optimal utilization

Active Publication Date: 2017-03-22
SCANA VOLDA +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in such a system the propeller shaft will be rather long, which means that there may be disadvantages related to vibrations and noise generation in the system
Furthermore, such a long shaft system poses challenges for layout (poor space utilization), increased number of bearings (wearing parts), etc.

Method used

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Examples

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Embodiment Construction

[0032] figure 1 An embodiment of a propulsion system 1 for a ship according to the invention is shown, the propulsion system 1 comprising a permanent magnet motor 2 having an outer housing structure 3 to which a stator 4 and a rotor 5 are arranged middle. The stator 4 will suitably be fixedly connected to the housing structure 3 , while the rotor 5 will be fixedly or detachably connected to a motor shaft 6 extending through the housing structure 3 . A plurality of coils / windings 4A will be arranged around the inner periphery of the stator 4 , while a plurality of permanent magnets 5A will similarly be mounted around the outer periphery of the rotor 5 .

[0033]The motor shaft 6 extending through the housing structure 3 is configured with a flange coupling 6A at the end extending out of the housing structure 3 in order to be able to be connected to a propeller shaft configured with a corresponding flange coupling 7A 7. The propeller shaft 7 is connected to the propeller hub ...

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Abstract

A propulsion system includes at least one permanent magnet motor, the magnet motor including an outer housing structure. In the housing structure, a stator and a rotor are arranged in such a way that a gap is formed between the stator and rotor, the stator being fixedly connected to the housing structure, while the rotor is connected to a motor shaft extending through the housing structure. A plurality of coils / windings are arranged around an inner circumference of the stator, while a plurality of permanent magnets are arranged around an outer circumference of the rotor. Through a coupling, the motor shaft is connected to a propeller shaft including a propeller. A thrust bearing and a propeller pitch control system are integrated into the permanent magnet motor.

Description

technical field [0001] The invention relates to a propulsion system for a ship comprising one or more electric motors, in particular permanent magnet motors. More specifically, the present invention relates to a permanent magnet motor in which the thrust bearing and oil distributor unit in the propeller pitch control system are integrated in the (permanent magnet) motor itself. Background technique [0002] Different propulsion systems have been proposed for the propulsion of ships, wherein one or more rotating propellers are arranged below the waterline of the ship. Typically, such propellers are driven by diesel engines, steam turbines or electric motors arranged in the hull of the ship. The propeller shaft would then extend through the hull of the vessel to a propeller mounted on the outside of the hull. However, in such a system the propeller shaft will be rather long, which means that there may be disadvantages related to vibrations and noise generation in the system....

Claims

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Application Information

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IPC IPC(8): B63H3/08B63H21/17
CPCB63H3/082B63H21/17B63H21/386B63H23/06B63H23/24B63H2003/088H02K7/003H02K7/08
Inventor 亨宁·布劳塔塞特罗阿尔·哈维克
Owner SCANA VOLDA