Pivotable propeller nozzle for a watercraft

A propeller and nozzle technology, applied in ship propulsion, steering with jets, hull, etc., can solve problems such as connection instability, and achieve the effects of low material cost, high bending moment, and good torsional rigidity
CN102470913AActive Publication Date: 2012-05-23BECKER MARINE SYST
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
BECKER MARINE SYST
Publication Date
2012-05-23

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Abstract

In order to achieve a connection between a nozzle shaft (20) and a nozzle ring (10) that has the simplest design possible, while at the same time being stable, in a propeller nozzle (100) for a watercraft which comprises a fixed propeller (30) and a nozzle ring (10) surrounding the propeller (30), said nozzle ring being pivotable by means of a nozzle shaft (20), the nozzle shaft (20) is designed as a hollow body.
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Description

technical field

[0001] The present invention relates to a swingable propeller nozzle for ships and to a nozzle rod for swinging the propeller nozzle for ships. Background technique

[0002] The drive unit of a ship, in particular a watercraft, is called a propeller nozzle and contains a propeller which is surrounded or shrouded by a nozzle ring. Such nozzle rings are also known as "Kort nozzles". The propellers arranged inside the nozzle ring are usually of fixed design, ie the propellers can only pivot about the drive axis or the propeller axis. For this purpose, the propeller is connected to the main body of the vessel via a rotatable but non-pivotable propeller shaft extending along the propeller axis. The propeller shaft is driven by a drive provided in the body of the boat. In contrast, propellers are not oscillating (horizontally or vertically).

[0003] In the case of a simple structure of the propeller nozzle, the nozzle ring surrounding the propeller is also fix...

Claims

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