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公开(公告)号：US09764809B2
公开(公告)日：2017-09-19
申请号：US14396354
申请日：2013-04-16
摘要： A device, which is autonomous or which can be associated with another structure, for propulsion in a liquid environment, is described. The device has a bladder body made of a soft material, developing along and around a central longitudinal axis, defining an internal chamber between a dorsal wall and a ventral wall; in the bladder body, an inlet opening and an outlet opening of a liquid in and out of the chamber, arranged at a longitudinal end of the body; and drive means for driving a contraction of the bladder, arranged on the dorsal wall and having a mechanical connection with the ventral to cyclically attract the ventral wall to the dorsal wall, thereby causing a pulsed ejection of a propeller jet from the chamber through the outlet opening.
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公开(公告)号：US07604520B2
公开(公告)日：2009-10-20
申请号：US11881890
申请日：2007-07-30
申请人： Oleg Kotlyar
发明人： Oleg Kotlyar
摘要： An electrical linear motor for propelling a marine vessel comprises a thruster assembly disposed within a guide tube. Permanent magnets are attached to the thruster assembly and placed in close proximity to electrical coil windings, which are positioned outside of and parallel to the guide tube. Electrical current energizing the coil windings creates an electromagnetic field, which interacts with the magnetic field of the magnets to cause reciprocating linear motion of the thruster assembly with the guide tube. During the non-propelling back stroke, a check valve on the thruster assembly is in open position to allow free passage of water. The check valve is moved to a closed position during the working stroke of the thruster assembly, allowing the thruster assembly to propel the marine vessel.
摘要翻译： 用于推进船舶的电动线性马达包括设置在导管内的推进器组件。 永磁体连接到推进器组件并且放置在电线圈绕组附近，电线圈绕组位于引导管的外部并平行。 对线圈绕组通电的电流产生电磁场，其与磁体的磁场相互作用以引起推进器组件与引导管的往复直线运动。 在非推进后行程中，推进器组件上的止回阀处于打开位置，以允许水自由通过。 在推进器组件的工作行程期间止回阀移动到关闭位置，允许推进器组件推进船舶。
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公开(公告)号：US5607331A
公开(公告)日：1997-03-04
申请号：US382124
申请日：1995-02-01
申请人： David Lekhtman
发明人： David Lekhtman
摘要： A float member has a top surface, a bottom surface, a front end and a rear end. A pair of elongated chambers extend in the float member between the top surface and the bottom surface. Each elongated chamber has respective openings at the top surface and bottom surface and rear end. Flap valves are provided for permitting water to enter through the bottom openings of the elongated chambers and foot pumps are provided for ejecting water through the rear ends of the chambers.
摘要翻译： 浮子构件具有顶表面，底表面，前端和后端。 一对细长的室在浮动构件中在顶表面和底表面之间延伸。 每个细长室在顶表面和底表面和后端具有相应的开口。 提供瓣阀，用于允许水通过细长室的底部开口进入，并且提供脚泵以通过腔室的后端喷射水。
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公开(公告)号：US3951094A
公开(公告)日：1976-04-20
申请号：US514147
申请日：1974-10-15
申请人： Claus Jastram , Fritz Weiss , Hans Voss
发明人： Claus Jastram , Fritz Weiss , Hans Voss
CPC分类号： B63H11/12
摘要： The invention relates to a gas-driven pulsating water jet propulsive duct drive for watercraft with a propulsive duct which has at the front end an inlet aperture for water with a closure member closing and opening periodically by means of a drive device, is open at the rear end for ejection of water and comprises at the front end a power gas outlet behind the inlet aperture. With propulsive duct drives of this kind the forward inlet aperture of the water-filled propulsive duct is periodically closed, the power gas outlet opened, in order to feed power gas under pressure into the propulsive duct and to expel the fluid filling of the propulsive duct rearwards, the power gas outlet is closed and the forward inlet aperture opened again for a fresh fluid filling.
摘要翻译： 本发明涉及一种用于具有推进管道的船舶的气体驱动脉动水射流推进管道驱动器，该驱动管道在前端具有用于水的入口孔，封闭构件通过驱动装置周期性地闭合和打开，在 后端用于喷射水，并且在前端包括入口孔后面的动力气体出口。 采用这种推进式传动驱动器，充满水的推进管道的前进入口周期性关闭，动力气体出口打开，以便将压力下的动力气体输送到推进管道中，并排出推进管道的流体填充物 向后，动力气体出口关闭，并且前进气孔口再次打开以进行新鲜的液体填充。
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公开(公告)号：US3800734A
公开(公告)日：1974-04-02
申请号：US3800734D
申请日：1972-06-20
申请人： LEE YUN WHANG
发明人： LEE YUN WHANG
摘要： A compression head with an inner valve is adapted for improved water propulsion.
摘要翻译： 具有内阀的压缩头适于改进水推进。
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公开(公告)号：US3765175A
公开(公告)日：1973-10-16
申请号：US3765175D
申请日：1971-12-23
申请人： OHNAKA J
发明人： OHNAKA J
摘要： A duct is formed through a vessel. An electro-magnet is positioned around the duct at a point such that the poles thereof form opposed portions of the duct. A vane is positioned within the duct to move from side-to-side thereof and has a permanent magnet attached thereto in a position between the two opposed poles of the electro-magnet. At the rearward end of the vane there is provided an extension pole having a contact at the upper end thereof. This pole extends through the upper wall of the duct into an air tight chamber. Mounted on opposite sides of the chamber are a plurality of change-over terminals which are connected to a switching arrangement which is in turn connected to the coils of the electro-magnet such that movement of the contact operates to reverse the polarity of the poles of the electro-magnet. Alternatively, the pole of the vane is an extension of a shaft mounting the vane. The permanent magnet is attached to the top of this extension. A plurality of electromagnets are arranged outwardly of the duct in a manner that movement of the permanent magnet will sequentially interrupt fields generated by the electro-magnets.
摘要翻译： 通过容器形成管道。 电磁体围绕管道定位在使得其极部形成管道的相对部分的点处。 管道中的叶片位于管道内，以从侧面到侧面移动，并且在电磁体的两个相对的极之间的位置上具有附接到其上的永磁体。 在叶片的后端处设置有在其上端具有接触件的延伸杆。 该杆通过管道的上壁延伸到气密室中。 安装在腔室的相对侧上的是多个转换端子，其连接到开关装置，开关装置又连接到电磁体的线圈，使得接触件的运动操作以使极性的极性反转 电磁铁。 或者，叶片的杆是安装叶片的轴的延伸部。 永久磁铁连接在该延伸部的顶部。 多个电磁体以这样的方式布置在管道的外部，使得永磁体的运动将顺序地中断由电磁体产生的磁场。
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公开(公告)号：US2611321A
公开(公告)日：1952-09-23
申请号：US69367246
申请日：1946-08-29
申请人： SHAFER HOMER J
发明人： SHAFER HOMER J
IPC分类号： B63H11/06
CPC分类号： B63H11/06
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公开(公告)号：US20210284308A1
公开(公告)日：2021-09-16
申请号：US17193068
申请日：2021-03-05
摘要： A watercraft having a body with an opening for a user, a seat, at least one drive mechanism placed at least partially within the opening; an intake configured to allow a flow of water from a body of water surrounding the watercraft; a pump configured receive the flow of water and accelerate the flow of water, and a user controlled discharge configured to receive the flow of accelerated water from the pump and discharge the accelerated water to the water surrounding the watercraft such that the watercraft moves in a direction chosen by the user.
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公开(公告)号：US10099764B2
公开(公告)日：2018-10-16
申请号：US14953421
申请日：2013-03-08
发明人： Jianchun Huan
IPC分类号： B63H11/06 , F04B19/04 , F04B19/22 , F04B1/04 , F04B23/10 , F04F5/24 , F04F5/46 , F04F5/54 , B63H1/32
摘要： A Side-Intake piston water jet propulsor for marine vehicles employs a concept of Side-Intake of water and generates thrust through piston's reciprocating motion in cylinder. The concept of Side-Intake makes intake openings on the side and near the discharging end of the cylinder wall to achieve that the piston separates the cylinder into a dry and a wet compartment during its movement. The dry compartment is kept at atmospheric or ambient pressure. As a result, the piston confronts air or ambient pressure instead of water during its recovering stroke for water intake. From hydrodynamics point of view, this characteristic of piston's recovering stroke through air achieves the same function as an oarsman recovering his oar through air. However, said propulsor achieves that under water or a vessel's water line.
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10.发明授权Method and device for low-noise underwater propulsion and for reducing hull drag 有权用于低噪声水下推进和减少船体阻力的方法和装置公开(公告)号：US06860770B2
公开(公告)日：2005-03-01
申请号：US10631125
申请日：2003-07-31
CPC分类号： B63H11/06 , B63G2013/022 , F04B17/044
摘要： A method and apparatus is disclosed for producing propulsion underwater with minimal acoustical emission. In basic concept, the method comprises the expulsion and sucking of liquid into and out of a liquid port of a watercraft in a manner generating compression and expansion waves adjacent the liquid port. Such expansion and compression waves generate a positive net thrust on the watercraft in a direction opposite that of their expulsion. Also disclosed is a method and apparatus for reducing the drag caused by hull skin friction by actively increasing the momentum of the liquid stream boundary layer adjacent a watercraft via the expulsion of fluid (liquid or gas) from ports in the hull of such a watercraft.
摘要翻译： 公开了一种在最小声发射下生产水下推进的方法和装置。 在基本概念中，该方法包括以邻近液体端口产生压缩和膨胀波的方式将液体排出和吸入船舶的液体端口。 这种膨胀和压缩波在与其驱逐相反的方向上产生对船只的正净推力。 还公开了一种用于通过从这种船舶的船体中的端口排出流体（液体或气体）而主动地增加邻近船舶的液体流边界层的动量来减少由船体表面摩擦引起的阻力的方法和装置。
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