首页> 外国专利> AIR CAVITY AND AIR LUBRICATION SYSTEM SHIP HAVING STERN SHAPE OF STEPPED FORM AROUND THE PROPELLER

AIR CAVITY AND AIR LUBRICATION SYSTEM SHIP HAVING STERN SHAPE OF STEPPED FORM AROUND THE PROPELLER

机译:螺旋桨周围呈阶梯状的斯特恩形状的气腔和润滑系统

摘要

The present invention relates to an air cavity and air lubrication system ship having a stern shape of stepped form around the propeller, and the ship comprises: ship-bottom dams and stern dams (stern steps) which are attached and secured at predetermined intervals in the width direction of the hull on the ship's bottom apart from the bow and on the stern and which extend in the length direction of the hull so as to form a plurality of air cavities; a plurality of air supply tubes which are installed perpendicularly on the ship so as to supply air to the air cavities, and which have aperture adjusting valves while also being equipped with air-supply machinery for supplying compressed air; slots, of which a plurality are formed at predetermined intervals in the length direction of the ship-bottom dams, and which are formed in the ship-bottom dams in such a way as to not only allow air communication between air cavities but also to supply some air to the ship's sides; and steps which are provided to the rear of the rudder while constituting the discharge end of the stern dam (stern step), so as to block the inflow of discharged air towards the propeller by inducing a continuous vacuum by causing speed differences in the wake of the propeller. According to the present invention, because of the stern shape of stepped form, it is possible to obtain the advantage of reduced carbon dioxide production because the air and the air bubbles that flow in from the front of the propeller are blocked and unable to flow in towards the propeller and at the same time are discharged smoothly to the rear of the propeller because of the use of the vacuum, which is to say the suction force, generated at the steps due to the high speed wake of the propeller, and thus the reversing efficiency is improved and the air lubrication reduces the surface area of friction between the hull and the water and minimises frictional resistance.
机译:空气腔和空气润滑系统船技术领域本发明涉及一种在螺旋桨周围具有阶梯状船尾形状的气腔和空气润滑系统船,该船包括:船底水坝和船尾水坝(船尾台阶),它们以预定的间隔安装并固定在船体中。船体在船体上除船首和船尾以外的宽度方向,并沿船体的长度方向延伸,从而形成多个气腔;多个供气管,其垂直安装在船上以向气腔供气,并具有孔径调节阀,同时还配备有供压缩空气的供气机械;在船底坝的长度方向上以预定间隔形成有多个的缝隙,并且在船底坝中形成的缝隙不仅允许空气腔之间的空气连通而且还用于供给空气。船侧有一些空气;以及在构成船尾坝的排放端时设置在舵后部的梯级(船尾梯级),以通过引起尾流速度差而产生连续的真空,从而阻止排放的空气流向螺旋桨。螺旋桨。根据本发明,由于呈阶梯状的船尾形状,因此可以得到减少二氧化碳产生的优点,因为从螺旋桨的前部流入的空气和气泡被阻塞并且不能流入。由于使用了真空,也就是说,在由于螺旋桨的高速尾流而产生的台阶处产生的吸力,因此朝向螺旋桨并同时顺畅地排放到螺旋桨的后部,因此换向效率得到改善,空气润滑减少了船体与水之间的摩擦表面积,并使摩擦阻力最小。

著录项

  • 公开/公告号WO2013115577A1

    专利类型

  • 公开/公告日2013-08-08

    原文格式PDF

  • 申请/专利权人 KIM SUNG YUN;PARK KEUNSIL;

    申请/专利号WO2013KR00785

  • 发明设计人 KIM SUNG YUN;PARK KEUNSIL;

    申请日2013-01-31

  • 分类号B63B1/38;B63B1/08;B63H5/16;

  • 国家 WO

  • 入库时间 2022-08-21 16:31:31

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