To provide a fluid resistance reduction energy saving vessel with high energy saving effect simultaneously reducing both fluid friction resistance on a hull surface and wave resistance in a bow unit received during navigation.SOLUTION: A device composition is in a composition: setting a fine bubble through-flow pump with a hollow rotary shaft motor on a top side in a pump pit inboard a bow unit; connecting the suction side flow path of the pump to a horizontally rectangular suction flow in opening opened below water surface of a bow tip unit; and having a discharge side flow path connecting the bow side hull side surface outer plate and hull side bottom surface outer plate to a narrow rectangular discharge exit opened under the water surface. Thus, water flow toward a bow unit has water surface waves suppressed by flowing in to the suction flow opening, wave resistance is reduced, and both fluid friction resistance in a side surface of a hull and the bottom surface are reduced by covering the hull side surface and the hull bottom surface by the flow of wide width minute bubbles from the ejection flow exit.SELECTED DRAWING: Figure 1
【課題】航行中に受ける船体表面における流体摩擦抵抗と船首部における造波抵抗の両方を同時に低減する省エネ効果の高い流体抵抗低減省エネ船を提供する。【解決手段】装置構成は、船首部船内のポンプピット内に、微細気泡貫流ポンプを、中空回転軸モータを上側にして略垂直にセットし、ポンプの吸込側流路は、船首先端部の水面下に開口した縦方向細長矩形の吸込流入口に接続し、吐出側流路は、船首側の船体側面外板と船体底面外板に、水面下に開口した細長矩形の吐出流出口に接続した構成である。これにより、船首部へ向かう水流が、前記吸込流入口への流入により水面波が抑制され、造波抵抗を低減し、吐出流出口からは、幅広の微細気泡の流れで船体側面と船体底面を覆うことにより、船体の側面と底面の両方の流体摩擦抵抗が低減される。【選択図】図1
FLUID RESISTANCE REDUCTION ENERGY CONSERVATION VESSEL
流体抵抗低減省エネ船
2024-04-02
Patent
Electronic Resource
Japanese
IPC: | B63B Schiffe oder sonstige Wasserfahrzeuge , SHIPS OR OTHER WATERBORNE VESSELS |
Vessel fluid resistance reducing device and vessel having same
European Patent Office | 2020
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