The present invention relates to a rudder for a ship having a rudder bulb and, more specifically, to a rudder for a ship having a rudder bulb, in which the rudder bulb protruding toward a propeller is included and the upper part and the lower part of a cross-section portion are unconformably formed based on the rudder bulb to enhance propelling efficiency of the ship. The rudder for the ship having the rudder bulb according to the present invention has the rudder bulb to reduce the occurrence of cavitation due to the propeller hub, while and allowing the upper part and the lower part of the cross-section unit to be biased in an unconformable direction corresponding to the rotational incident flow such that the fluid more easily flows, thereby enhancing propelling efficiency of the ship and saving fuel.

    본 발명은 러더벌브를 포함하는 선박용 방향타에 관한 것으로서, 더욱 상세하게는 프로펠러 방향으로 돌출된 러더벌브를 포함하며 러더벌브를 기준으로 전단 상부와 전단 하부가 엇갈리게 형성되어 선박의 추진효율을 높일 수 있는 러더벌브를 포함하는 선박용 방향타에 관한 것이다. 본 발명의 러더벌브를 포함하는 선박용 방향타는 러더벌브가 형성되어 있어 프로펠러 허브에 의한 캐비테이션 발생을 줄일 수 있으면서, 회전입사류의 흐름에 대응되게 전단부 상부와 하부가 엇갈리는 방향으로 편향되어 있어 유체의 이동이 용이함에 따라 선박의 추진효율 및 연료를 절감할 수 있는 이점이 있다.


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    Title :

    Rudder for ship having rudder bulb


    Additional title:

    러더벌브를 포함하는 선박용 방향타


    Contributors:

    Publication date :

    2021-03-10


    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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