To provide a pod type propeller capable of improving propulsion efficiency, without requiring an inverter, with high conversion efficiency for energy, and reducing swirling flow generated in front and back of the propeller and ineffective water flow, etc., generated in the circumferential direction.SOLUTION: A pod type propeller for propelling a vessel by rotating a propeller 20 by an electric motor for propulsion 8 in a pod 1 includes: a synchronizing differential transmitter 6 for varying a blade pitch angle by an electric motor for varying blade pitch 5 coupled to a rotational shaft of the propeller 20; a duct 19 arranged on an outer periphery of the propeller 20; and a duct front unit straightening plate 18 for straightening water flowing into the duct 19 to a flow going along a blade pitch angle of the propeller 20, arranged forward of the propeller 20 in the duct 19.SELECTED DRAWING: Figure 1

    【課題】インバータなどが不要で、エネルギーの変換効率も高く、プロペラの前後で発生する旋回流や円周方向で発生する無効水流等を低減して、推進効率の向上が図れるポッド型推進装置を提供する。【解決手段】ポッド1内の推進用電動モータ8によりプロペラ20を回転させて船舶を推進させるポッド型推進装置において、プロペラ20の回転軸に連結された羽根ピッチ可変用電動モータ5により、羽根ピッチ角を変更するための同期差動変速機6と、プロペラ20の外周に配されたダクト19とを有し、ダクト19内のプロペラ20より前方に、ダクト19に流れ込んだ水をプロペラ20の羽根ピッチ角に沿った流れに整流するダクト前部整流板18を配した。【選択図】図1


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    Title :

    POD TYPE PROPELLER


    Additional title:

    ポッド型推進装置


    Contributors:

    Publication date :

    2023-07-14


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

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



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