본 발명은 선박의 운항 조건에 따라 블레이드 피치를 변경 가능한 가변 피치 프로펠러에 관한 것으로서, 특히 고정 피치 프로펠러(fixed pitch propeller; FPP)의 추진효율에 근접하는 고효율을 가질 수 있도록 허브의 사이즈를 감소시킬 수 있는 최적의 허브 직경비를 갖는 가변 피치 프로펠러에 관한 것이다. 상기와 같은 목적을 달성하기 위한 본 발명은 선박의 추진축에 장착된 허브와, 허브의 둘레에 장착되며 피치가 가변하는 블레이드를 포함하는 가변 피치 프로펠러로서, 프로펠러의 직경(D)과 허브의 직경(H)에 대한 H/D비가 0.170 내지 0.2인 것을 기술적 특징으로 한다.

    The present invention relates to a variable-pitch propeller capable of changing a blade pitch according to the sailing conditions of a ship and, specifically, to a controllable pitch propeller having an optimal hub-to-tip diameter ratio, the propeller being capable of reducing the size of a hub so as to have a high efficiency that is close to the propulsion efficiency of a fixed pitch propeller (FPP). In order to accomplish the aforementioned objective, the present invention relates a controllable pitch propeller which comprises a hub mounted at the propelling shaft of a ship, and a blade that is mounted at the circumference of the hub and that has a variable pitch, and which is technically characterized by a H/D ratio, of diameter (H) of the propeller and diameter (D) of the hub, of 0.170-0.2.


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    Title :

    Controllable pitch propeller with optimal hub diameter ratio


    Additional title:

    최적의 허브 직경비를 갖는 가변 피치 프로펠러


    Publication date :

    2025-06-25


    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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