A ship propulsion device having an asymmetric duct is disclosed. A duct, which is a horizontally asymmetric structure, is formed in a shape that an upper chord becomes narrow and is applied to the ship propulsion device. A port support part having a fixed pitch angle is formed in the duct. Therefore, the present invention improves the propulsion performance of a ship while preventing the reduction of thrust generated in the upper area of the duct by preventing resistance from being generated due to flow separation caused by an excessive angle of attack in the lower area of the duct.

    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.


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    Title :

    SHIP PROPULSION UNIT THAT APPLY ASYMMETRY 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



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