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Pod type rim propeller

A propeller, pod technology, applied in ship propulsion, propulsion components, outboard propulsion devices, etc., can solve problems such as energy loss, blade tip cavitation, etc.

Inactive Publication Date: 2020-04-17
HARBIN ENG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Traditional ship propellers tend to generate blade tip vortex and propeller hub vortex, and the blade tip is prone to cavitation problems, resulting in energy loss

Method used

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Examples

Experimental program
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Effect test

Embodiment 1

[0021] The invention includes brackets, pods, stators, ducts and blades. The upper end of the support is connected with the hull, and the lower end is connected with the pod, and the support can generate thrust in different directions through flexible steering; the pod is also fixedly connected with the stator, and the tip of the stator is connected with the guide tube, and the guide tube is also equipped with five blades .

[0022] The present invention also includes such features:

[0023] 1. The whole system is located at the stern of the ship;

[0024] 2. The motor stator winding is placed inside the conduit, and the motor rotor is installed at the root of the blade. The motor stator winding is fed with an alternating current to drive the motor rotor to move, thereby driving the blade to rotate, thereby providing thrust.

[0025] Compared with prior art, the beneficial effect of the present invention is:

[0026] 1. Expand the application of shaftless propulsion, and ap...

Embodiment 2

[0036] The invention designs a pod type rim-driven propeller, which mainly includes a bracket, a pod, a stator, a duct and blades. The shaft of the stator is fixedly connected to the pod, and the tip is connected to the conduit. The conduit can move with the pod to achieve the purpose of omnidirectional rotation. In addition, the conduit integrates the motor together, eliminating the need for complex mechanical structures inside the pod. The cavitation problem at the tip of the propeller is completely solved. The invention not only integrates propulsion and steering, but also adds the concept of the shaftless propeller into the design, which provides beneficial effects for the integrated module in the field of ship propulsion.

[0037] 1. A pod type rim-driven propeller, comprising a support 1, a pod 2, a stator 3, a conduit 4 and blades 5. The upper end of the support is connected with the hull, and the lower end is connected with the pod, and the support can generate thrust...

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Abstract

The invention discloses a pod type rim propeller, and belongs to the field of ship propulsion. The propeller structurally comprises a support, a nacelle, a stator, a guide pipe and blades. The upper end of the support is connected with a ship body, the lower end of the support is connected with the nacelle, the nacelle is fixedly connected with a shaft of the stator, the tip end of the stator is fixedly connected with the inner wall of the annular guide pipe, the blades are installed at the annular center of the guide pipe, a motor stator winding is installed in the guide pipe, and the motor rotor is installed at the root of the blades. According to the invention, the application of the shaftless propeller is expanded, and the concept of omnibearing propelling is applied to rim propelling;complex mechanical transmission in the nacelle is eliminated, and a motor stator and a motor rotor of the rim propeller are sealed respectively without dynamic sealing. A shaftless concept is added into the design of the nacelle propeller, so that the cavitation problem of a blade tip is eliminated; according to the rim-driven propeller, the nacelles are integrated together through the stator, propelling and steering are combined, omnibearing propelling can be achieved, and ship propelling integrated modular design is facilitated.

Description

technical field [0001] The invention belongs to the field of ship propulsion, and in particular relates to a pod type rim propeller. Background technique [0002] Traditional ship propellers tend to generate blade tip vortex and propeller hub vortex, and the blade tip is prone to cavitation problems, resulting in energy loss. The rim propeller is a relatively new type of propeller. It is a ducted propeller integrated with a motor. Compared with the traditional ducted propeller, it changes the axial drive to the radial drive, and abandons the propeller hub and blade tip. The generation of blade tip vortex and propeller hub vortex is fundamentally avoided, and energy loss is reduced. The structure of the rim propeller is more complicated than that of the traditional propeller. It fixes the high-energy magnetic rotor of the permanent magnet brushless motor in the blade tip end plate, and integrates the stator coil of the motor into the duct, and the permanent magnet poles are ...

Claims

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Application Information

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IPC IPC(8): B63H20/06B63H5/15
CPCB63H20/06B63H5/15B63H5/14B63H20/00B63H20/007B63H23/24B63H2001/165B63H2023/005
Inventor 胡健毛翼轩赵旺王英铸李涛郭春雨王超汪春辉
Owner HARBIN ENG UNIV
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