The invention relates to the technical field of sails, in particular to an airfoil sail. The airfoil sail comprises a sail body, horizontal end plates are installed at the upper end and the lower endof the sail body respectively, and the peripheral edges of the end plates extend out of the end face of the sail body in a suspended mode; or the sail comprises a sail body, the sail body is in a curved surface shape, and the sail body twists towards one side of the sail body from top to bottom; or the sail comprises a sail body, horizontal end plates are installed at the upper end and the lower end of the sail body respectively, the peripheral edges of the end plates extend out of the end face of the sail body in a suspended mode, the sail body is in a curved surface shape, and the sail bodyis twisted towards one side of the sail body from top to bottom. The twisted design can enable the airfoil sail sections at different heights to achieve the optimal airflow attack angle, the boostingeffect of the sail is improved to the maximum extent, the end plates effectively restrain wind flow separation at the end of the sail body, the aerodynamic characteristics of the upper end and the lower end can be effectively improved, and the overall boosting effect of the sail is further improved.
本发明涉及风帆技术领域,尤其是一种翼型风帆,包括风帆本体,风帆本体的上端和下端分别安装有水平的端板,端板的四周边缘悬伸在风帆本体的端面之外;或者包括风帆本体,风帆本体为曲面状,风帆本体自上而下向风帆本体的一侧扭曲;或者包括风帆本体,风帆本体的上端和下端分别安装有水平的端板,端板的四周边缘悬伸在风帆本体的端面之外,风帆本体为曲面状,风帆本体自上而下向风帆本体的一侧扭曲。扭曲设计可使得不同高度处的翼型风帆剖面达到最佳的气流攻角,最大限度提高风帆的助推效果,端板有效抑制了风帆本体端部风流动分离,可有效提高上端、下端部的气动特性,并使得风帆整体的助推效果得到进一步的提高。
Airfoil sail
一种翼型风帆
2020-12-25
Patent
Electronic Resource
Chinese
IPC: | B63H Schiffsantrieb oder Steuerung der Schiffe , MARINE PROPULSION OR STEERING |
AIRFOIL TYPE SAIL FOR VESSEL AND VESSEL INCLUDING AIRFOIL TYPE SAIL FOR VESSEL
European Patent Office | 2023
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