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Novel pod-type power thruster

A propeller and pod-type technology, applied in the field of new pod-type electric propulsion, can solve problems such as limiting the propulsion power of the propulsion system, and achieve the effects of increasing propulsion efficiency, facilitating installation and maintenance, and saving space

Inactive Publication Date: 2017-06-20
ZHEJIANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] As early as 100 years ago, people began to use electric motors to drive propellers to rotate, but electric motor propulsion has been subject to the constraints of existing technical conditions for a long time. Gear transmission, AC motor speed control technology, maintenance, etc. propulsion power of the propulsion system

Method used

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  • Novel pod-type power thruster
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Examples

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Embodiment Construction

[0009] refer to figure 1 , 2 , the pod type electric propeller of the present invention is made up of propeller of NACA airfoil, pod and rudder three parts; Described propeller adopts NACA66 airfoil and crown height surface is a=0.8, and its blade curved surface is as follows figure 1 , the propeller is arranged at the end of the pod, and the pod is connected through the rudder and suspended at the bottom of the stern, and a motor is arranged in the pod, and the motor drives the above propeller. Such as figure 2 As shown, the propeller in this example is composed of three parts: an asymmetric NACA airfoil propeller, an axisymmetric pod and a symmetrical NACA airfoil rudder, and the NACA66 airfoil with arch height a=0.8 is used to replace the traditional B4-70 The propeller airfoil improves the hydrodynamic performance of the propeller such as thrust and torque, and the pod can rotate 360°, while saving the cabin space, reducing the vibration of the main engine, increasing t...

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PUM

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Abstract

The invention discloses a novel pod-type power thruster. An asymmetric NACA airfoil profile is adopted to replace a traditional B4-70 propeller airfoil profile, improvement of hydrodynamic performance such as thrust and torque of the thruster is realized, and the novel pod-type power thruster is mainly composed of three parts, namely asymmetric NACA airfoil profile propellers, a pod and a rudder. Through connection of the rudder, the pod is suspended at the bottom of a stern, and a motor is placed in the pod to drive the NACA airfoil profile propellers on the pod. According to the thruster, cabin space can be saved, vibration of a main engine is reduced, the propulsive efficiency is improved, and the maneuverability of a ship is improved.

Description

technical field [0001] The invention relates to a novel pod type electric thruster, which adopts NACA airfoil to replace the traditional B4-70 propeller. Background technique [0002] As early as 100 years ago, people began to use electric motors to drive propellers to rotate, but electric motor propulsion has been subject to the constraints of existing technical conditions for a long time. Gear transmission, AC motor speed control technology, maintenance, etc. The propulsion power of the propulsion system. In the 1980s, with the rapid development of electric control technology and motor frequency modulation technology, ships have begun to use electric power as the propulsion system, among which pod propulsion is a successful application of electric propulsion, and has now become the mainstay of ship electric propulsion systems. important propulsion device. The pod-type electric propulsion system saves the available space of the hull, reduces noise and vibration, increases...

Claims

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Application Information

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IPC IPC(8): B63H21/17B63H1/14
CPCB63H1/14B63H21/17
Inventor 陈振纬冯卓
Owner ZHEJIANG UNIV
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