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Waterjet propulsion system and watercraft having a waterjet propulsion system

A water jet propulsion and ship technology, applied in the direction of propulsion components, ship propulsion, propulsion engine, etc., can solve the problems of restricting use, hindering use, etc., and achieve the effect of low driving power and compact design

Inactive Publication Date: 2018-02-23
安德烈亚斯德施
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] This known water jet propulsion system has the disadvantage that a sealed bushing is required due to the guidance of the drive shaft
[0006] The development of noise from such drives or the vessels operated thereby also limits their use in recreational activities and precludes their use in the field of natural observation or military intelligence

Method used

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  • Waterjet propulsion system and watercraft having a waterjet propulsion system
  • Waterjet propulsion system and watercraft having a waterjet propulsion system
  • Waterjet propulsion system and watercraft having a waterjet propulsion system

Examples

Experimental program
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Embodiment Construction

[0022] Figure 1 to Figure 6 Different views are shown of a preferred embodiment of a water jet propulsion system 1 for ships with: a water inlet area 2; an impeller area 3 adjoining the water inlet area 2, in which A single-stage impeller 4 is arranged in the center; and an outlet nozzle 5 adjoining the impeller region 3, wherein the waterjet propulsion system 1 has a drive motor 6 connected at least indirectly to an impeller drive shaft 7 of the impeller 4 , wherein the impeller 4 has only a single blade 8 .

[0023] The present water jet propulsion system 1 has a simple and especially compact design. The water jet propulsion system 1 has a hydrodynamic cleaning structure, whereby the required drive power is low.

[0024] Thus, it is possible to produce a water jet propulsion system 1 which requires only low driving power. Due to the low drive power required, emission-free operation with electric motors and batteries is also possible, wherein the waterjet propulsion syste...

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PUM

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Abstract

The invention relates to a waterjet propulsion system and a watercraft having a waterject propulsion system. The invention relates to a waterjet propulsion system (1) for a watercraft, comprising an intake region (2), an impeller region (3) which adjoins the intake region and in which a one-stage impeller (4) is mounted, and an outlet nozzle (5) which adjoins the impeller region, the waterjet propulsion system having a drive motor (6) which is at least indirectly connected to an impeller driveshaft (7) of the impeller (4). According to the invention, the impeller has only one single blade (8).

Description

technical field [0001] The invention relates to a water jet propulsion system according to the preamble of claim 1 . Background technique [0002] Water jet propulsion systems are known which have a water intake area, a compressor section and a drive nozzle. The compressor section in this case has a plurality of blades driven by a drive shaft. The drive shaft passes through the water inlet area or drives the nozzle. [0003] This known water jet propulsion system has the disadvantage that a sealed bushing is required due to the guidance of the drive shaft. Such bushings are technically complex and maintenance intensive. This results in high acquisition and maintenance costs. Such bushings also have high friction and thus necessitate high drive power. Furthermore, the drive shaft passes directly through the flow area and causes turbulence in front of the impeller or in the outlet nozzle, further reducing the efficiency of such drives and thus increasing the required driv...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B63H11/08F04D3/02F04D29/22
CPCB63H21/17B63H2011/082F04D29/18F04D29/24F04D29/242B63H11/08B63H11/103
Inventor 安德烈亚斯·德施赫伯特·鲍姆加特纳约翰·瓦尔德赫伦
Owner 安德烈亚斯德施
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