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1. 发明申请

WO2020025753A1 CAVITATION MONITORING SYSTEM AND POD DRIVER 审中-公开
公开(公告)号：WO2020025753A1
公开(公告)日：2020-02-06
申请号：PCT/EP2019/070781
申请日：2019-08-01
申请人： SIEMENS AKTIENGESELLSCHAFT
发明人： TIAN, Zhong Wei , DUAN, Rui Chun , YANG, Yong , LIU, Da Wei , WANG, Rui Nan
IPC分类号： B63H1/18 , B63H1/28 , B63H25/06
摘要： Cavitation monitoring system and a pod driver, comprising: a pressure sensing device, disposed on the surface of the rudder body of the pod driver sensing pressure on the surface of the rudder body; and a processing unit, configured to, obtain the pressure around the pressure sensing device and determine whether the obtained pressure is smaller than or equal to a preset threshold, wherein when the processing unit determines that the obtained pressure is smaller than or equal to the preset threshold, it determines that cavitation will occur in the liquid, the threshold being greater than or equal to the critical pressure under which cavitation occurs in a liquid around the pressure sensing device. Therefore, since cavitation can be determined in advance, the sailing status of the ship can be changed actively or automatically, thus avoiding cavitation.

2. 发明申请

WO2016140398A1 추진기 소음 및 진동 저감을 위한 비대칭 반류 생성 와류 발생기 审中-公开
标题翻译：用于减少螺旋桨噪声和振动的不对称发电VORTEX发电机
公开(公告)号：WO2016140398A1
公开(公告)日：2016-09-09
申请号：PCT/KR2015/004963
申请日：2015-05-18
申请人： 한국해양과학기술원
发明人： 설한신 , 김기섭 , 안종우
IPC分类号： B63H5/16 , B63H1/18 , B63H1/28
CPC分类号： B63H1/18 , B63H1/28 , B63H5/16 , Y02T70/547
摘要： 본 발명은 선박에 설치되는 추진기(propeller)에 유입되는 유동을 제어하여 선박 추진기 날개면에 발생하는 캐비테이션(cavitation)을 감소하는 것에 의해 추진기의 소음 및 진동을 감소할 수 있도록 구성되는 추진기 소음 및 진동 저감을 위한 비대칭 반류 생성 와류 발생기에 관한 것으로, 본 발명에 따르면, 추진기 전방의 선체 표면에 부착되어 추진기에 유입되는 유동을 제어하기 위해 날개 형상의 구조물이 유입 유동과의 받음각을 가지게 하여 유체 힘에 의한 유속 및 유동 방향을 제어하도록 구성되어 대형 구조물이 되어야 효과를 볼 수 있는 단점이 있으며, 또한, 추진기 전방의 선체 표면에 부착되어 수평(tangential) 방향의 속도를 변화시키는 것에 의해 전류(Pre-swirl) 효과에 의한 추진기 효율 향상의 효과가 있는 반면, 캐비테이션 증가에 의해 추진기 소음 및 진동이 증가하는 부작용이 있었던 종래기술의 날개 형상의 부가물 또는 유동 제어 핀(flow control fin)의 문제점을 해결하기 위해, 비대칭 와류 발생에 의한 축(axial) 방향의 속도 변화를 통해 날개면에 유입되는 받음각을 감소함으로써 캐비테이션이 가장 많이 발생하는 프로펠러면 1 사분면 또는 2 사분면 쪽의 유동을 특히 빠르게 만드는 비대칭적 반류(wake) 분포를 생성하여 캐비테이션 소음 발생을 최소화할 수 있도록 구성되는 추진기 소음 및 진동 저감을 위한 비대칭 반류 생성 와류 발생기가 제공된다.
摘要翻译：本发明涉及一种用于减少螺旋桨噪声和振动的不对称尾流产生涡流发生器，其被配置为通过控制引入到安装在船上的螺旋桨中的流动，以减少在螺旋桨的机翼表面上发生的气蚀可以减少螺旋桨的噪音和振动。常规的翼形添加材料或流量控制翅片具有以下问题：翼形结构附接到螺旋桨前面的船体表面，并且为了控制引入螺旋桨的流动，具有对引入流量的攻角; 因此，由流体力产生的流速和流动方向也相同，因此只有当结构大时才能发挥效果。此外，当在螺旋桨前面的船体表面上相同的情况下，在切向方向上改变速度时，所产生的预涡旋效应提高了螺旋桨的效率，而增加的气蚀增加了噪音和振动的螺旋桨。为了解决上述问题，本发明提供了一种用于减小螺旋桨噪声和振动的非对称尾流产生涡流发生器，其被配置为使得通过在所述机翼表面中的速度变化而引入到机翼表面的迎角从而产生不对称的尾流分布，使得在最大程度的空化发生的螺旋桨表面的第一或第二象限上的流动特别快，从而最小化空化噪声的产生。

3. 发明申请

WO2008116855A1 PARTIALLY SUBMERGED PROPELLER DRIVE SYSTEM 审中-公开
标题翻译：部分提取螺旋桨驱动系统
公开(公告)号：WO2008116855A1
公开(公告)日：2008-10-02
申请号：PCT/EP2008/053454
申请日：2008-03-21
申请人： FLEXITAB S.r.l. , ACAMPORA, Brunello
发明人： ACAMPORA, Brunello
IPC分类号： B63H1/18 , B63H1/16
CPC分类号： B63H1/16 , B63H1/18 , B63H2001/185
摘要： A partially submerged propeller drive system (1), of the kind having a partially submerged propeller placed at the transom (T) of a watercraft provided with one or more propellers (2) mounted at the lower part of the transom (T) of a watercraft (S), with the drive shaft projecting astern, allows a more effective directing of the wake wave, so as to achieve at the propellers a working condition at lower speeds nearer to ideal one, partially submerged and at a lower pressure, preventing them to be affected at the rated cruise speed designed for the watercraft and comprises, at each drive shaft, a flap (100) between the transom (T) and the propeller (2), positioned so as to intercept the wake wave (W), when the watercraft (S) moves at a speed lower than the rated speed.
摘要翻译：一种部分浸没的螺旋桨驱动系统（1），其具有放置在设置有安装在艉板（T）的下部的一个或多个螺旋桨（2）的船只的艉板（T）处的部分浸没的螺旋桨船舶（S），随着驱动轴的后退，允许更有效地引导尾流，以便在螺旋桨处获得更接近理想的，部分淹没和处于较低压力的较低速度的工作状态，从而防止它们在为船舶设计的额定巡航速度下受到影响，并且在每个驱动轴处包括在横档（T）和螺旋桨（2）之间的挡板（100），以便拦截尾流（W），当船只（S）以低于额定速度的速度移动时。

4. 发明申请

WO01053147A1 STREAMLINED BODY FOR IMMERSION IN A LIQUID AT HIGH RELATIVE SPEED 审中-公开
标题翻译：流体在高相对速度下浸没在液体中
公开(公告)号：WO01053147A1
公开(公告)日：2001-07-26
申请号：PCT/CH2001/000033
申请日：2001-01-16
IPC分类号： B63B1/26 , B63B1/28 , B63H1/18
CPC分类号： B63B1/288 , B63H1/18
摘要： The invention is based on the objective of preventing cavitation on streamlined bodies which are immersed in a liquid (2) at high relative speed (v), permitting their use within wider speed ranges. To this purpose, in a transverse slot (4) a two-phase mixture of air and water is produced, which forms a two-phase mixture layer (9) downstream of the slot (4). The required air is supplied from an external source or precipitated from the air contained in the water in the transverse slot. Even without any air at all a water/water-vapour mixture layer is generated, which behaves in the manner of a two-phase mixture layer on account of the finely distributed vapour bubbles. The Reynold's number derived from the width of the slot (4) is greater than 20'000.
摘要翻译：本发明基于防止在高相对速度（v）浸没在液体（2）中的流线型体上的空化的目的，从而允许它们在更宽的速度范围内使用。为此，在横向槽（4）中，产生空气和水的两相混合物，其在槽（4）的下游形成两相混合层（9）。所需的空气从外部源供应或从包含在横向槽中的水中的空气沉淀出来。即使没有任何空气，产生水/水蒸气混合物层，由于精细分布的蒸气泡，其表现为两相混合物层的方式。从槽（4）的宽度导出的雷诺数大于20'000。

5. 发明申请

WO01002742A2 ROTOR WITH A SPLIT ROTOR BLADE 审中-公开
标题翻译：转子带有收集的转子叶片
公开(公告)号：WO01002742A2
公开(公告)日：2001-01-11
申请号：PCT/EP2000/006412
申请日：2000-07-06
IPC分类号： B63H1/18 , B63H1/26 , B63H3/00 , B64C11/16 , B64C11/18 , B64C27/00 , B64C27/467 , F01D5/14 , F03D1/06 , F04D29/24 , F04D29/38 , F16D
CPC分类号： F01D5/141 , B63H1/26 , B63H1/265 , B63H3/00 , B64C11/16 , B64C27/00 , F03D1/0608 , F04D29/242 , Y02E10/721 , Y02T50/673
摘要： The invention relates to a rotor (1) through which a fluid flows in a main direction of flow (H) and which is provided with at least one rotor blade (4), said rotor blade being arranged in such a way that it can rotate about a rotor axis. The rotor blade (4) extends away from the axis of rotation (2), into the fluid, at least in sections. The rotation (D) of the rotor blade (4) about the axis of rotation (2) in a predetermined direction of rotation produces a propulsive thrust in the opposite direction to the main direction of flow, or a torque is produced about the axis of rotation as a result of the flow. The aim of the invention is to reduce the trailed tip vortex at the end of the rotor blades of rotors of this type and therefore to reduce the fluidic losses and flow noise. To this end, the rotor blade (4) extends in at least two partial blades (5, 6) at a set distance from the axis of rotation and forms a loop. One partial blade (5) extends in the direction of rotation (D) in relation to the rotor blade, at least in one area close to the rotor blade. The other partial blade extends in the opposite direction to the direction of rotation (D) in relation to the rotor blade (4), at least in one area close to the rotor blade (4). The two partial blades (5, 6) are interconnected in one piece at their ends so that they encompass a loop surface (12) through which the fluid flows, said loop surface extending essentially crosswise to the main direction of flow.
摘要翻译：本发明涉及一种转子（1），其通过在流动的流体的主流动方向（H），并配备了至少一个围绕转子轴可旋转地安装的转子叶片（4）。转子叶片（4）至少部分地远离旋转轴线（2）延伸到流体中。由转子叶片（4）围绕旋转轴的旋转（d）（2）在预定的旋转方向，并且针对由于流动推进力的主流动方向产生围绕旋转轴线的力矩。为了实现在转子叶片的端部在叶片端涡流的减小，从而降低了流体机械的损失并且在这样的转子的流动噪声，根据本发明提供的是转子叶片（4）（在预定的距离从旋转中的至少两个局部叶片5的轴，6）继续并形成一个循环。在这种情况下，一个部分片（5）在旋转（d）和所述另一部分叶片的方向延伸的至少在所述转子叶片附近的区域（4）在相对于所述转子叶片（4）相对于转子叶片的转子叶片附近的区域至少延伸（4）对旋转方向（D）。在其端部，这两个部分的叶片（5,6）一体地连接到彼此，使得它们包围由流体表面（12）穿过的环路，它横向延伸到流动的主方向大致。

6. 发明申请

WO98046482A1 IMPROVED FLUID DISPLACING BLADE 审中-公开
标题翻译：改进的流体叶片
公开(公告)号：WO98046482A1
公开(公告)日：1998-10-22
申请号：PCT/AU1998/000239
申请日：1998-04-08
IPC分类号： B63H1/18 , B63H1/26 , B63H1/28 , B64C11/16
CPC分类号： B63H1/18 , B63H1/28
摘要： A propeller (11) having five blades (13) supported from a hub (14) is exemplified. The propeller (11) is shown with the faces (15) of those blades (13) facing the viewer (out of the page), and has apertures (19) extending through each blade (13) from the face (15) to the back of each blade (13), and spread relatively evenly across the extent of each blade. The axial extent of the apertures (19) is substantially aligned with the direction of movement of the blades (13) relative to the axis of the propeller (11). The apertures (19) are normal both to the radial extent of the propeller (11) and the axial extent of the propeller. Each aperture (19) includes a bevelled edge in the form of a countersunk lip (21) extending around the periphery, on the face (15). The flow of fluid through the apertures (19) is believed to interfere with turbulent fluid adjacent to the back of the propeller (11), and so lead to improved efficiency of the propeller.
摘要翻译：示例了具有从轮毂（14）支撑的五个叶片（13）的螺旋桨（11）。螺旋桨（11）被示出为具有面向观察者（页外）的那些叶片（13）的面（15），并且具有从面（15）延伸穿过每个叶片（13）的孔（19）每个叶片（13）的背面，并且相对均匀地分布在每个叶片的范围内。孔（19）的轴向范围基本上与叶片（13）相对于螺旋桨（11）的轴线的运动方向对准。孔（19）在推进器（11）的径向范围和螺旋桨的轴向范围内都是正常的。每个孔（19）包括在面（15）上围绕周边延伸的埋头唇（21）形式的倾斜边缘。认为通过孔（19）的流体流干扰与螺旋桨（11）的背面相邻的紊流，因此导致螺旋桨的效率提高。

7. 发明申请

WO2022188988A1 A PROPULSION ASSEMBLY FOR A MARINE VESSEL 审中-公开
公开(公告)号：WO2022188988A1
公开(公告)日：2022-09-15
申请号：PCT/EP2021/056331
申请日：2021-03-12
申请人： WÄRTSILÄ NETHERLANDS B.V.
发明人： TIAINEN, Lauri
IPC分类号： B63H5/14 , B63H5/16 , B63H1/16 , B63H1/18 , B63H25/46
摘要： Invention relates to a thruster assembly (10) for a marine vessel (1) comprising a body (12) comprising a duct (20) having a longitudinal axis (L), and a first end (20.1) and a second end (20.2), a support structure (14) for a propeller (16) comprising a propeller shaft (18) at a centre line of the duct (20), a propeller (16), positioned into the duct (20) and being attached to the propeller shaft (18), wherein the propeller (16) comprising at least three blades (22) and a boss (24) which is supported to the shaft (18), and further a circular rim (26) to which radial ends (22’) of the propeller blades are attached, wherein a circumferential slot (28) is provided, opening inside the duct between the first end (20.1) and the second end (20.2), into which slot the circular rim (26) is arranged to extend radially, and at least one gas inlet (30) arranged to open into the slot (28). Invention relates also to a transverse tunnel thruster and a steerable azimuthing thruster provided with the thruster assembly.

8. 发明申请

WO2019010651A1 一种防缠绕的挖泥船用螺旋桨审中-公开
公开(公告)号：WO2019010651A1
公开(公告)日：2019-01-17
申请号：PCT/CN2017/092637
申请日：2017-07-12
申请人：顾建磊
发明人：顾建磊
IPC分类号： B63H5/16 , B63H1/28 , B63H1/18
CPC分类号： B63H1/18 , B63H1/28 , B63H5/16
摘要：一种防缠绕的挖泥船用螺旋桨，包括与船体连接的齿轮箱(1)，转动设置在齿轮箱(1)上的桨毂(2)，齿轮箱(1)的一端且靠近桨毂(2)的边缘设置有至少一个第一切割刀(3)，第一切割刀(3)一端固定设置在齿轮箱(1)上，另一端设置有三个刀刃(31,32,33)；桨毂(2)远离齿轮箱(1)的端部设有毂帽(5)，毂帽(5)沿周边均布有多个鳍(51)，鳍(51)以螺旋形式沿着毂帽(5)的周边设置，每个鳍(51)的端部均设置有端板(52)。该螺旋桨能够在任意转动方式的情况下割断缠绕在上面的物体，还能够降低毂涡空化和减少船舵的空蚀现象，鳍(51)可以带来除螺旋桨的推进之外的辅助的推进，进一步提高推进效率。

9. 发明申请

WO2015001315A3 CAVITATION GENERATION 审中-公开
标题翻译：航空发电
公开(公告)号：WO2015001315A3
公开(公告)日：2015-09-11
申请号：PCT/GB2014051950
申请日：2014-06-26
申请人： UNIV CRANFIELD , VIGNJEVIC RADE
发明人： VIGNJEVIC RADE
IPC分类号： B63B1/24 , B63B1/38 , B63H1/18
CPC分类号： B63B1/248 , B63B2001/382 , B63B2001/387 , B63H1/18 , Y02T70/122
摘要： A surface (110) to be exposed to liquid flow in a predetermined direction (F) relative to the surface has a plurality of predetermined regions (120) spaced in the predetermined direction, the surface in each region having at least one discontinuity (200) configured to generate, in liquid in the vicinity of that region, a pressure sufficient to initiate cavitation in that liquid.
摘要翻译：暴露于液体的表面（110）相对于表面沿预定方向（F）流动，具有沿预定方向隔开的多个预定区域（120），每个区域中的表面具有至少一个不连续点（200）被配置为在该区域附近的液体中产生足以在该液体中引发空化的压力。

10. 发明申请

WO2014165121A1 COMPOSITIONS AND METHODS FOR GENERATING CAVITATION RESISTANCE 审中-公开
标题翻译：用于产生耐腐蚀性的组合物和方法
公开(公告)号：WO2014165121A1
公开(公告)日：2014-10-09
申请号：PCT/US2014/024480
申请日：2014-03-12
申请人： TALEYARKHAN, Rusi
发明人： TALEYARKHAN, Rusi
IPC分类号： B63H1/18 , B64C11/16
CPC分类号： F02C7/222 , B63H1/18 , F02M2200/04 , F15B21/047
摘要： A method for generating cavitation resistance in a liquid, a portion of which can be in contact with a surface is disclosed. The disclosed method can be carried out by pressure-treating the liquid, the liquid portion in contact with the surface, and/or the surface for a sufficient time to develop resistance to cavitation. The disclosed method can be carried out when the surface is made of a material having a surface roughness that is greater than the rc of the liquid. Suitable surfaces include borosilicate glass, drawn glass, copper, lead, steel, cast iron, metal alloys and concrete. The surfaces can be ship and boat propeller surfaces, the interior of fuel lines and fuel storage containers or any other surface where cavitation can occur.
摘要翻译：公开了一种在液体中产生气蚀阻力的方法，其中一部分可与表面接触。所公开的方法可以通过对液体，与表面接触的液体部分和/或表面进行压力处理足够的时间来产生耐空化作用。所公开的方法可以在表面由表面粗糙度大于液体的rc的材料制成时进行。合适的表面包括硼硅酸盐玻璃，拉制玻璃，铜，铅，钢，铸铁，金属合金和混凝土。表面可以是船和船螺旋桨表面，燃料管线的内部和燃料储存容器或任何其他可能发生气蚀的表面。

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