To provide a vessel propulsion device capable of arranging a plurality of connection passages in slide-contact parts of upper and lower cases while enlarging the device.SOLUTION: A propulsion device comprises: an upper case; a lower case; a screw; a feeding channel; and a return channel. The upper case is supported on a vessel body. The lower case is rotatably supported on the upper case. The screw is disposed in a part immersed in external water of the lower case. Through the feeding channel, a fluid is fed from the upper case through slide-contact parts of the upper and lower cases to the lower case. Through the return channel, the fluid is returned from the lower case through the slide-contact parts to the upper case. An annular space is provided between the slide-contact part of the upper case side and the slide-contact part of the lower case side. The annular space is divided into a first arc passage and a second arc passage by a plurality of partition walls. One of the first and second arc passages is communicated with the feeding channel, and the other is communicated with the return channel.SELECTED DRAWING: Figure 5

    【課題】装置の大型化を抑制しつつ、複数の接続通路を上部ケースと下部ケースの摺接部に配置することができる船舶の推進装置を提供する。【解決手段】推進装置は、上部ケース、下部ケース、スクリュー、送給流路、戻し流路を備える。上部ケースは船体に支持される。下部ケースは上部ケースに回動可能に支持される。スクリューは下部ケースの外水に没する部位に配置される。送給流路は上部ケースと下部ケースの摺接部を経由して上部ケースから下部ケースに流体を送給する。戻し流路は摺接部を経由して下部ケースから上部ケースに流体を戻す。上部ケース側の摺接部と下部ケース側の摺接部の間には環状空間が設けられる。環状空間は複数の仕切壁によって第1弧状通路と第2弧状通路とに仕切られる。第1弧状通路と第2弧状通路のいずれか一方が送給流路に連通し、いずれか他方が戻し流路に連通する。【選択図】図5


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    Title :

    VESSEL PROPULSION DEVICE


    Additional title:

    船舶の推進装置


    Contributors:

    Publication date :

    2024-04-10


    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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