Impeller propeller - Yokushasuishinki

Japanese: 翼車推進器 - よくしゃすいしんき
Impeller propeller - Yokushasuishinki
A type of propeller in which the blades rotate around a vertical axis. There are several types, but the most well-known is the Voith-Schneider propeller, named after its inventor. In this type, the blades are attached vertically to a rotating disk attached to the bottom of the ship, and a link mechanism as shown in the figure changes the angle of attack of the blades during one rotation, generating thrust in one direction. By moving the center point P of the link, thrust in any direction can be obtained, eliminating the need for a rudder and making the ship extremely maneuverable.

Source: Heibonsha World Encyclopedia, 2nd Edition Information

Japanese:
鉛直軸のまわりに翼が回転する形式のプロペラ。いくつかの形式があるが,発明者の名まえを冠したフォイト=シュナイダープロペラVoith‐Schneider propellerが有名である。これは,船底に取りつけられた回転する円板に,羽根が垂直に取りつけられ,図のようなリンク機構により一回転中に羽根の迎え角が変化し,一方向の推力を発生する。リンクの中心P点を動かすことにより任意の方向の推力が得られるので,舵が不要で,船の操縦性もきわめてよくなる。

出典 株式会社平凡社世界大百科事典 第2版について 情報

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