The present invention provides a ship propulsion unit applied with an asymmetric duct. According to the present invention, the ship propulsion unit is applied with a duct which is a laterally asymmetric structure wherein an upper chord becomes narrow. The duct comprises a port support unit having a predetermined pitch angle. Therefore, resistance can be prevented to be generated by a flow delamination phenomenon due to an excessive angle of attack in a lower portion of the duct, thereby preventing propulsion reduction generated in an upper portion of the duct and improving propulsion performance of a ship.

    본 발명은 비대칭 덕트를 적용한 선박 추진장치를 개시한 것으로, 이러한 본 발명은 선박 추진장치에 좌우 비대칭 구조물로서 상부 익현(Chord)이 좁아지는 형태의 덕트를 적용하되 덕트에 일정 피치각도를 가지는 포트지지부를 구성한 것이며, 이에따라 덕트의 하부 영역에서 과도한 받음각으로 인한 유동 박리 현상으로 저항력이 생성하는 것을 방지하여 덕트의 상부 영역에서 발생하는 추력 감소를 방지시키면서 선박의 추진 성능을 향상시키도록 한 것이다.


    Access

    Download


    Export, share and cite



    Title :

    SHIP PROPULSION UNIT THAT APPLY DUCT


    Additional title:

    덕트를 적용한 선박 추진 장치


    Contributors:

    Publication date :

    2016-01-04


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Korean


    Classification :

    IPC:    B63H Schiffsantrieb oder Steuerung der Schiffe , MARINE PROPULSION OR STEERING



    Ship propulsion unit that apply duct

    European Patent Office | 2019

    Free access

    SHIP PROPULSION UNIT THAT APPLY ASYMMETRY DUCT

    HAN MYUNG RYOON / ANN YOU WON / CHUNG YONG KWAN et al. | European Patent Office | 2016

    Free access

    SHIP PROPULSION UNIT THAT RECTIFIER UNIT IS APPLIED

    CHUNG YONG KWAN / ANN YOU WON / KIM JEONG HU et al. | European Patent Office | 2016

    Free access

    Ship propulsion unit that rectifier unit is applied

    European Patent Office | 2018

    Free access

    Ship propulsion unit

    YASUI TOMOHIRO / SUGIURA YOSHIMITSU / ISOBE YUSHIRO et al. | European Patent Office | 2020

    Free access