公开(公告)号：WO2012135154A1

公开(公告)日：2012-10-04

申请号：PCT/US2012/030630

申请日：2012-03-26

Applicant: OCEAN POWER TECHNOLOGIES, INC. ,  STEWART, David, B.

Inventor： STEWART, David, B.

IPC: F03B13/12

CPC classification number: F03B13/16 ,  F03B11/00 ,  F03B13/20 ,  F05B2260/406 ,  Y02E10/226 ,  Y02E10/38

Abstract: The generally up and down movement of a reaction mass is converted into rotary motion which is used to drive a rotary hydraulic spring comprised of a rotary hydraulic pump motor and an accumulator to produce a "spring" function. The invention is particularly applicable to wave energy converters (WECs) having a reaction mass which needs to be coupled to a spring to ensure Its oscillation and to cause it to be centered about its center of travel. The linear up-down motion of a reaction mass may be converted via a linear-to-rotary translator to rotary motion to drive a rotary hydraulic pump/motor so as to provide spring action to the reaction mass and ensure its oscillation and proper positioning.

Abstract translation: 反作用物体的上下运动被转换为用于驱动由旋转液压泵马达和蓄能器组成的旋转液压弹簧以产生“弹簧”功能的旋转运动。 本发明特别适用于具有反应物质的波能量转换器（WEC），该反应物质需要耦合到弹簧以确保其振荡并使其以其行进中心为中心。 反应物质的线性上下运动可以通过线性旋转转换器转换为旋转运动，以驱动旋转液压泵/马达，以向反作用物质提供弹簧作用并确保其振动和适当的定位。

公开(公告)号：WO2011062576A1

公开(公告)日：2011-05-26

申请号：PCT/US2009/006272

申请日：2009-11-23

Applicant: OCEAN POWER TECHNOLOGIES, INC. ,  EDER, James, E. ,  STEWART, David, B.

Inventor： EDER, James, E. ,  STEWART, David, B.

IPC: F03B13/18

CPC classification number: F03B13/1845 ,  F03B13/20 ,  F05B2220/7068 ,  F05B2240/14 ,  F05B2260/90 ,  Y02E10/38

Abstract: A wave energy converter (WEC) includes a float tending to move in phase with the waves, a spar tending to move out of phase with the float and power take off device (PTO) coupled between the float and spar for converting their relative motion into useful energy. The PTO includes a rack and pinion mechanism which drives a high-torque, multi-pole, permanent magnet generator (PMG) to produce electrical signals of relatively high frequency relative to the frequency of the waves and the basic motion of the rack and pinion mechanism. In accordance with one aspect of the invention, the rack and pinion mechanism may be located within the spar which may be hermetically sealed by a sealing mechanis'm which allows a thrust rod coupled between the float and spar to move up and down with little friction to ensure efficient operation. In addition, a braking arrangement is provided for inhibiting relative motion between the float and spar during extreme severe wave conditions. In this way, the pinion gears and generators need only be sized for the operational wave conditions.

Abstract translation: 波浪能转换器（WEC）包括倾向于与波相同步移动的浮子，与浮子相连接的浮子和动力输出装置（PTO）的翼型倾向于与相邻的浮力和翼梁耦合在一起，以将它们的相对运动转换为 有用的能量。 PTO包括齿条和齿条机构，其驱动高扭矩，多极永磁发电机（PMG），以产生相对于波的频率和齿条和齿轮机构的基本运动的相对高频率的电信号 。 根据本发明的一个方面，齿条和小齿轮机构可以位于翼梁内，其可以通过密封机构气密地密封，该密封机构允许在浮子和翼梁之间连接的推杆几乎没有摩擦地上下移动 确保高效运行。 此外，提供制动装置用于在极端严重的波浪状况下抑制浮子和翼梁之间的相对运动。 以这种方式，小齿轮和发电机只需要根据工作波动情况确定尺寸。

公开(公告)号：WO2012135127A1

公开(公告)日：2012-10-04

申请号：PCT/US2012/030583

申请日：2012-03-26

Applicant: OCEAN POWER TECHNOLOGIES, INC. ,  STEWART, David, B.

Inventor： STEWART, David, B.

IPC: F03B13/10

CPC classification number: F03B13/16 ,  F03B11/00 ,  F03B13/20 ,  F05B2260/406 ,  Y02E10/226 ,  Y02E10/38

Abstract: A wave energy converter (WEC) buoy includes at least one pitch-driven WEC ("PDWEC") device. Each PDWEC device includes two reaction masses which are placed at diametrically opposite ends of a container designed to float along the surface of a body of water and to move In response to the pitching motion of the waves. The reaction masses are interconnected so that when one reaction mass moves up, the diametrically opposed reaction mass moves down, and vice-versa. The movement of the reaction masses drives power take off (PTO) devices to produce useful energy. The reaction masses may be interconnected by any suitable linking system. One or more PDWEC device may be combined with a heave responsive device to produce a WEC buoy which can produce a power output in response to pitch or heave motion.

Abstract translation: 波浪能转换器（WEC）浮标包括至少一个俯仰驱动的WEC（“PDWEC”）装置。 每个PDWEC装置包括两个反作用质量块，它们被放置在设计成沿着水体表面浮动的容器的沿径向相对的端部并且响应于波浪的俯仰运动而移动。 反应物质相互连接，使得当一个反应物质向上移动时，直径相对的反作用物质向下移动，反之亦然。 反应物质的移动驱动动力输出（PTO）装置产生有用的能量。 反应物质可以通过任何合适的连接系统相互连接。 一个或多个PDWEC装置可以与起伏响应装置组合以产生WEC浮标，其可以响应于俯仰或起伏运动而产生功率输出。

公开(公告)号：WO2007027681A2

公开(公告)日：2007-03-08

申请号：PCT/US2006/033689

申请日：2006-08-28

Applicant: OCEAN POWER TECHNOLOGIES, INC.

Inventor： STEWART, David, B. ,  GERBER, James, S.

IPC: F03B13/00

CPC classification number: F03B13/1815 ,  B63B2035/442 ,  B63B2035/4466 ,  F03B13/1845 ,  F03B13/1875 ,  F03B13/188 ,  F05B2240/93 ,  F05B2240/98 ,  Y02E10/38

Abstract: A wave energy converter (WEC) for converting energy contained in surface waves on a body of water to useful energy comprises two floats movable relative to one another in response to passing surface waves. Both floats comprise expandable outer envelopes which have been expanded into full and firm shape. In one process, expansion is obtained by filling the floats with fluids, for example, air and water. The fluids can be pumped into the floats, or the floats can be mechanically expanded in the presence of the fluids for self filling owing to pressure differentials. In one embodiment, a float envelope can comprise of plurality of end to end connected length sections in nested or telescoped relationship. Expansion is obtained by pulling the telescoped sections out from one and other, for example, by pumping fluids into the telescoped sections.

Abstract translation: 用于将包含在水体上的表面波中的能量转换为有用能量的波能转换器（WEC）包括响应于通过的表面波而相对于彼此移动的两个浮子。 两个浮体都包括已扩展成完整和坚固形状的可扩展的外封套。 在一个过程中，通过用流体（例如空气和水）填充浮体来获得膨胀。 流体可以被泵送到浮子中，或者浮子可以在流体存在下由于压力差而自动填充而被机械膨胀。 在一个实施例中，浮动包络可以以嵌套或伸缩关系包括多个端对端连接的长度部分。 通过例如通过将流体泵送到伸缩部分中而从一个或另一个拉伸可伸缩部分获得膨胀。

公开(公告)号：WO2005089295A2

公开(公告)日：2005-09-29

申请号：PCT/US2005/008495

申请日：2005-03-15

Applicant: OCEAN POWER TECHNOLOGIES, INC.

Inventor： SABOL, Thomas ,  STEWART, David, B.

IPC: A01D75/30 ,  C12N9/42 ,  F03B13/18 ,  F03B13/20 ,  F03B15/00 ,  F03C1/00 ,  H02K7/18 ,  H02K35/02

CPC classification number: F03B13/1845 ,  B60L7/003 ,  F03B13/20 ,  F05B2220/7068 ,  F05B2220/707 ,  F05B2260/50 ,  F05B2260/903 ,  H02K7/106 ,  H02K7/1876 ,  H02K35/02 ,  H02K35/04 ,  H02P3/22 ,  H02P9/008 ,  H02P25/18 ,  Y02E10/38 ,  Y02P60/12 ,  Y02T10/641 ,  Y02T10/642

Abstract: A WEC system embodying the invention includes a column and shell, arranged to move relative to each other, and a lever-like apparatus having an input end and an output end and an intermediate point, between the two ends, the intermediate point being rotatably connected to the column. The input end is connected to the shell and moves at the same velocity and in the same direction as the shell. The output end moves in the opposite direction and at a rate which is a multiple of the shell velocity. The multiple being a function of the ratio of the length of the intermediate point to the output and input ends. In systems embodying the invention, one of two components (a PMA or an ICA) of a linear electric generator may be attached to the shell and the other of the two components may be attached to the output end of the lever-like apparatus to produce high relative velocity between the two components resulting in higher amplitude and higher frequency output voltages.

Abstract translation: 体现本发明的WEC系统包括布置为相对于彼此移动的柱和壳体，以及杆状设备，其具有输入端和输出端以及位于两端之间的中间点，中间点可旋转地连接 到列。 输入端连接到壳体，以与壳体相同的速度和方向移动。 输出端以相反的方向移动，速度是壳速度的倍数。 该倍数是中间点的长度与输出和输入端之间的比率的函数。 在体现本发明的系统中，线性发电机的两个部件（PMA或ICA）中的一个可以附接到外壳，并且两个部件中的另一个可以附接到杠杆式装置的输出端，以产生 两个部件之间的高相对速度导致更高的幅度和更高的频率输出电压。

公开(公告)号：WO2010047677A1

公开(公告)日：2010-04-29

申请号：PCT/US2008/012092

申请日：2008-10-24

Applicant: OCEAN POWER TECHNOLOGIES, INC. ,  STEWART, David, B.

Inventor： STEWART, David, B.

IPC: F03B13/18

CPC classification number: F03B13/20 ,  F03B13/1845 ,  F05B2240/93 ,  Y02E10/38

Abstract: A wave energy converter (WEC) system includes a shell containing an internal oscillator comprised of a reaction mass suspended from the shell by an elastic spring in parallel with a constant force spring. The constant force spring provides a relatively constant force (Fc) to counterbalance the static weight of the reaction mass and reduce the extension 'static' length of the elastic spring while the elastic spring exerts a force (Fes) on the reaction mass that is proportional to the displacement, x, of the elastic spring. A power take-off (PTO) device, located within the shell, coupled between the shell and the internal oscillator converts their relative motion into electrical energy.

Abstract translation: 波能量转换器（WEC）系统包括壳体，其包含内部振荡器，该内部振荡器包括通过与恒定力弹簧平行的弹性弹簧从壳体悬挂的反作用质量体。 恒力弹簧提供相对恒定的力（Fc）以平衡反作用物质的静态重量并减小弹性弹簧的延伸“静态”长度，同时弹性弹簧对反应物质施加一定比例的力（Fes） 到弹性弹簧的位移x。 耦合在外壳和内部振荡器之间的外壳内的功率输出（PTO）装置将其相对运动转换为电能。

公开(公告)号：WO2007064827A2

公开(公告)日：2007-06-07

申请号：PCT/US2006/045907

申请日：2006-12-01

Applicant: OCEAN POWER TECHNOLOGIES, INC.

Inventor： STEWART, David, B. ,  GERBER, James, S.

IPC: F03B13/12 ,  F03B13/10 ,  H02P9/04

CPC classification number: F03B13/20 ,  F05B2260/502 ,  Y02E10/38

Abstract: A wave energy converter (WEC) includes a shell suitable for being placed within a body of water. The shell contains an internal oscillator comprising a "reaction mass" and a spring mechanism coupled between the reaction mass and the shell. The shell and internal oscillator are constructed such that, when placed in a body of water and in response to waves in the body of water, there is relative motion between the shell and the internal oscillator's mass. A power take-off (PTO) device is coupled 'between the internal oscillator and the shell to convert their relative motion into electric energy. In systems embodying the invention, the spring mechanism is designed such that its displacement or movement is less than the displacement or movement of the reaction mass. The spring mechanism may be any device which enables the reaction mass to undergo a given replacement while its displacement or movement is less than that of the reaction mass. This property enables the size of the WEC to be more readily controlled (e.g., made smaller).

Abstract translation: 波能转换器（WEC）包括适于放置在水体内的外壳。 壳体包含内部振荡器，其包括耦合在反应物质和壳体之间的“反应物质”和弹簧机构。 壳体和内部振荡器被构造成使得当放置在水体中并且响应于水体中的波浪时，壳体和内部振荡器的质量之间存在相对运动。 功率输出（PTO）装置耦合在内部振荡器和壳体之间，以将其相对运动转换为电能。 在体现本发明的系统中，弹簧机构设计成使得其位移或移动小于反作用物质的位移或移动。 弹簧机构可以是使得反应物质在其位移或运动小于反应物质的位移或运动时经历给定替换的任何装置。 该属性使得能够更容易地控制WEC的尺寸（例如，更小）。

公开(公告)号：WO2005089284A2

公开(公告)日：2005-09-29

申请号：PCT/US2005/008469

申请日：2005-03-15

Applicant: OCEAN POWER TECHNOLOGIES, INC. ,  STEWART, David, B. ,  TAYLOR, George, W.

Inventor： STEWART, David, B. ,  TAYLOR, George, W.

IPC: A01D75/30 ,  C12N9/42 ,  F03B13/18 ,  F03B13/20 ,  F03B15/00 ,  F03C1/00 ,  H02K7/18 ,  H02K35/02

CPC classification number: F03B13/1845 ,  B60L7/003 ,  F03B13/20 ,  F05B2220/7068 ,  F05B2220/707 ,  F05B2260/50 ,  F05B2260/903 ,  H02K7/106 ,  H02K7/1876 ,  H02K35/02 ,  H02K35/04 ,  H02P3/22 ,  H02P9/008 ,  H02P25/18 ,  Y02E10/38 ,  Y02P60/12 ,  Y02T10/641 ,  Y02T10/642

Abstract: A magnetic braking system for inhibiting excessive motion between a float and a column intended to be placed in a body of water; with the float and column moving relative to each other as a function of the waves present in the body of water. The braking system includes a permanent magnetic assembly (PMA) mounted on, and attached to, one of the float and column and a coil assembly (or a conductive plate) mounted on, and attached to, the other one of the float and column. The braking system is mounted such that motion between the float and the column is inhibited when the displacement of the float relative to the column exceeds a predetermined operating range.

Abstract translation: 一种用于抑制浮子和待放置在水体中的柱之间的过度运动的磁性制动系统; 随着浮体和柱体相对于彼此的移动，其作为存在于水体中的波的函数。 制动系统包括安装在浮子和柱之一上并连接到浮子和柱中的一个的永久磁性组件（PMA）和安装在另一个浮子和柱上并连接到另一个浮子和柱的线圈组件（或导电板）。 制动系统被安装成使得当浮子相对于柱的位移超过预定的操作范围时，浮子和柱之间的运动被禁止。

公开(公告)号：WO2012135138A1

公开(公告)日：2012-10-04

申请号：PCT/US2012/030603

申请日：2012-03-26

Applicant: OCEAN POWER TECHNOLOGIES, INC. ,  STEWART, David, B. ,  EDER, James, E.

Inventor： STEWART, David, B. ,  EDER, James, E.

IPC: F03B13/10

CPC classification number: F03B13/16 ,  F03B11/00 ,  F03B13/20 ,  F05B2260/4021 ,  F05B2260/4022 ,  F05B2260/406 ,  Y02E10/226 ,  Y02E10/38

Abstract: A wave energy converter (WEC) system includes WEC devices which can function to produce useful energy (power) efficiently in response to heave motion and/or pitch motion and/or roll motion. Pitch responsive devices are deployed around the outer periphery of a container and one (or more) heave responsive device is located about the center of the container. The pitch responsive devices may be of the type defined as PDWECs which include two reaction masses which are primarily operable in response to pitching motion or they may be of the type which includes one reaction mass operable in response to pitch and/or heave motion,

Abstract translation: 波能量转换器（WEC）系统包括WEC设备，其能够响应于升沉运动和/或俯仰运动和/或滚动运动而有效地产生有用的能量（功率）。 间距响应装置围绕容器的外围部署，并且一个（或多个）起伏响应装置围绕容器的中心定位。 俯仰响应装置可以是定义为PDWEC的类型，其包括主要可响应于俯仰运动操作的两个反作用质量，或者它们可以是包括响应于俯仰和/或起伏运动而可操作的一个反作用质量的类型，

公开(公告)号：WO2005089283A2

公开(公告)日：2005-09-29

申请号：PCT/US2005/008468

申请日：2005-03-15

Applicant: OCEAN POWER TECHNOLOGIES, INC. ,  STEWART, David, B. ,  SMALSER, Paul ,  SCHANZER, Henry, I.

Inventor： STEWART, David, B. ,  SMALSER, Paul ,  SCHANZER, Henry, I.

IPC: F03B13/18 ,  H02K3/28 ,  H02K41/00 ,  H02K41/03 ,  H02P9/00 ,  H02P25/06

CPC classification number: H02K41/031 ,  F03B13/1845 ,  F05B2220/7068 ,  H02K3/28 ,  H02P9/00 ,  H02P25/06 ,  Y02E10/38

Abstract: In a linear electric generator (LEG) which includes apparatus for passing a permanent magnetic assembly (PMA) along linearly disposed sections of coils of an induction coil assembly (ICA) for generating voltages and power, a switching arrangement for coupling only selected sections of coils of the (ICA) across the power output lines of the (LEG). The selected coil sections include the sections of coils of the ICA in close proximity to the passing (PME). In accordance with different embodiments, the non selected coils of the (ICA) may be either short circuited or disconnected (open circuited) from the power output lines.

Abstract translation: 在一种线性发电机（LEG）中，其包括用于沿着用于产生电压和功率的感应线圈组件（ICA）的线圈的线性布置部分使永久磁性组件（PMA）通过的装置，用于仅耦合选定线圈部分的开关装置 的（ICA）跨越（LEG）的电力输出线。 所选择的线圈部分包括紧邻通过（PME）的ICA的线圈部分。 根据不同的实施例，（ICA）的未选择的线圈可以从电力输出线路短路或断开（开路）。