PROBLEM TO BE SOLVED: To improve propulsion performance and suppress occurrence of cavitation and erosion.SOLUTION: A propulsion device of a ship 1 comprises: a port side propeller 10L and a starboard propeller 10R; a steering wheel 40 disposed on a ship width direction center C; and shaft brackets 13R, 13L disposed on front sides of the port side propeller 10L and the starboard propeller 10R respectively, and supporting rotatably, propeller shafts 12R, 12L of the port side propeller 10L and the starboard propeller 10R respectively. Distance between a tip end of a propeller blade of the port side propeller 10L and a tip end of a propeller blade of the starboard propeller 10R on the ship width direction center C side, is longer than 0 m and equal to or shorter than 1.0 m, and rotation directions of the port side propeller 10L and the starboard propeller 10R are external rotation directions, rotating from the ship width direction center C side to outward, on upper parts of the port side propeller 10L and the starboard propeller 10R.SELECTED DRAWING: Figure 4

    【課題】キャビテーションやエロージョンなどの発生を抑制しつつ、推進性能を向上させる。【解決手段】船舶1の推進装置は、左舷プロペラ10Lおよび右舷プロペラ10Rと、船幅方向中心Cに配置された舵40と、左舷プロペラ10Lおよび右舷プロペラ10Rの前方にそれぞれ設けられ、左舷プロペラ10Lおよび右舷プロペラ10Rのプロペラ軸12R,12Lを回転自在に支持するシャフトブラケット13R,13Lと、を備え、船幅方向中心C側における左舷プロペラ10Lのプロペラ翼の先端と右舷プロペラ10Rのプロペラ翼の先端との距離は、0mより大きく1.0m以下とされ、左舷プロペラ10Lおよび右舷プロペラ10Rの回転方向は、左舷プロペラ10Lおよび右舷プロペラ10Rの上部において船幅方向中心C側から外側に向かって回転する外回りとされている。【選択図】図4


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    Title :

    PROPULSION DEVICE OF ADJACENT TWIN SCREW SHIP HAVING SHAFT BRACKET, AND SHIP


    Additional title:

    シャフトブラケットを有する近接二軸船の推進装置、船舶


    Contributors:

    Publication date :

    2016-05-30


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    B63H Schiffsantrieb oder Steuerung der Schiffe , MARINE PROPULSION OR STEERING / B63B Schiffe oder sonstige Wasserfahrzeuge , SHIPS OR OTHER WATERBORNE VESSELS



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