タイトルまたは説明

 

Description

A propeller energy saving device that consists of several suitable blades in a common propeller hub cap. On the one hand, the rotation energy of the propeller's wake is absorbed to generate a positive torque, while on the other hand, the propeller's hub vortex can be reduced to improve the propeller efficiency, reducing the excitation force and noise.

It is always used in medium-low speed vessels, especially the ship with large tail and uneven flow. It also has the advantages of low cost, long term effects and high security reliability.

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