公开(公告)号：WO2005069824A3

公开(公告)日：2005-08-04

申请号：PCT/US2005/001100

申请日：2005-01-13

Applicant: OCEAN POWER TECHNOLOGIES, INC.

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

IPC: F03C1/00

Abstract: The invention relates to active impedance matching systems (AIMS) and methods for increasing the efficiency of a wave energy converter (WEC) having a shaft and a shell intended to be placed in a body of water and to move relative to each other in response to forces applied to the WEC by the body of water. The system includes apparatus for: (a) extracting energy from the WEC and producing output electric energy as a function of the movement of the shell (shaft) relative to the shaft (shell): and (b) for selectively imparting energy to one of the shell and shaft for causing an increase in the displacement and velocity (or acceleration) of one of the shell and shaft relative to the other, whereby the net amount of output electrical energy produced is increased.

公开(公告)号：WO2005089379A2

公开(公告)日：2005-09-29

申请号：PCT/US2005/008753

申请日：2005-03-15

Applicant: OCEAN POWER TECHNOLOGIES, INC. ,  SABOL, Thomas

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 embodying the invention includes a non-circular main central column positioned within a like non-circular central opening of a shell to contain the central column and prevent rotation or twisting of the shell relative to the column. In a particular embodiment, the central column is multi-sided (e.g., a square) and the central opening of the shell is likewise multi-sided (e.g., square). The facing sides of the column and shell are parallel to each other facilitating the layout of the components of a linear electric generator (LEG) between the facing sides and ensuring good magnetic coupling between the components of the LEG over the length of travel of the shell and column.

Abstract translation: 实施本发明的WEC包括位于壳体的类似的非圆形中心开口中的非圆形主中心柱，以容纳中心柱并防止壳体相对于柱的旋转或扭转。 在特定实施例中，中心柱是多面的（例如，正方形），并且壳的中心开口同样是多边的（例如，正方形）。 柱和壳体的相对侧彼此平行，有助于面对侧之间的线性发电机（LEG）的部件的布局，并且确保LEG的部件之间在壳体的行进长度上的良好的磁耦合 和列。

公开(公告)号：WO2005089281A2

公开(公告)日：2005-09-29

申请号：PCT/US2005/008463

申请日：2005-03-15

Applicant: OCEAN POWER TECHNOLOGIES, INC.

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

IPC: H02K41/00 ,  H02K41/03

CPC classification number: H02P25/06 ,  H02K7/1876 ,  H02K11/046 ,  H02K35/02 ,  H02K41/03 ,  H02P9/00

Abstract: A linear electric generator (LEG) includes sections of coils of an induction coil assembly (ICA) disposed along a distance d1 and apparatus for passing a per anent magnetic assembly (PMA) of length d2, where d2 is less than d1, along the coils for generating voltages and power in the coils in close proximity to the PMA. Unidirectional conducting elements are connected between the coils and output power lines to couple the voltages developed across excited coils to the output power lines without the unexcited coils loading down or dissipating the volts e developed across the output power lines.

Abstract translation: 线性发电机（LEG）包括沿着距离d1设置的感应线圈组件（ICA）的线圈部分，以及用于沿线圈通过长度为d2的每一个磁性组件（PMA），其中d2小于d1 用于在靠近PMA的线圈中产生电压和功率。 单向导电元件连接在线圈和输出电源线之间，以将在激励线圈上产生的电压耦合到输出电力线，而不会使未激励的线圈负载或耗散在输出电力线上产生的电压e。

公开(公告)号：WO2005085632A1

公开(公告)日：2005-09-15

申请号：PCT/US2004/003519

申请日：2004-02-05

Applicant: OCEAN POWER TECHNOLOGIES, INC.

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

IPC: F03C1/00

CPC classification number: F03B13/20 ,  F03B13/1845 ,  F05B2220/7066 ,  F05B2220/7068 ,  F05B2240/9151 ,  F05B2250/311 ,  Y02E10/38

Abstract: A wave energy converter system comprises two floats; a first being generally flat and heaving up and down in phase with passing surface waves on a body of water, and the second being elongated and heaving up and down out of phase with the passing waves. Preferably the first float is annular with a central vertical opening therethrough, and the elongated float, with a weighted bottom end, extends vertically through the central opening of the first float. The two floats thus move out of phase with one another, thus providing a relatively large relative motion between the two floats giving rise to highly efficient energy conversion. Each float serves as a “ground” for the other; thus avoiding the need for anchoring the floats to the floor of the body of water.

Abstract translation: 波浪能转换器系统包括两个浮子; 第一个通常是平坦的，并且在水体上通过表面波而上下同相，并且第二个被拉长并且与通过的波浪同相地上下浮起。 优选地，第一浮子是具有穿过其中的中心垂直开口的环形，并且具有加权底端的细长浮子垂直延伸穿过第一浮子的中心开口。 因此，两个浮子彼此相位异相，从而在两个浮子之间提供相对较大的相对运动，从而产生高效的能量转换。 每个浮标为另一个的“地面” 从而避免了将浮子锚定在水体的地板上的需要。