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1. 发明授权

US11952974B2 Wave energy converter 有权
公开(公告)号：US11952974B2
公开(公告)日：2024-04-09
申请号：US17941101
申请日：2022-09-09
申请人： Columbia Power Technologies, Inc.
发明人： Pukha Lenee-Bluhm , Michael L. Ondusko , Zhe Zhang
IPC分类号： F03B13/22
CPC分类号： F03B13/22 , F05B2250/44 , F05B2260/406
摘要： A wave energy converter is provided which includes a nacelle having a starboard side and a port side axis, and housing a power take-off. The wave energy converter also includes at least one buoyancy member coupled to the nacelle, and a ballast tank coupled to the nacelle. The ballast tank, the at least one buoyancy member, and the nacelle, together form a first body, where the first body is coupled to the power take-off. The wave energy converter further includes a float and a drive arm forming a second body, where the second body is rotatably coupled to the first body about a coupling axis, and the second body is coupled to the power take-off. The second body is configured to rotate relative to the first body about the coupling axis within a radial span bounded by a proximal end of the float and a radially distal end of the float. According to one aspect, the first body has a center of mass and a center of buoyancy, and the coupling axis is offset from a line formed between the center of mass and the center of buoyancy of the first body. Methods for generating power with the wave energy converter are also provided.

2. 发明公开

US20240084775A1 WAVE ENERGY CONVERTER 审中-公开
公开(公告)号：US20240084775A1
公开(公告)日：2024-03-14
申请号：US17941101
申请日：2022-09-09
申请人： Columbia Power Technologies, Inc.
发明人： Pukha Lenee-Bluhm , Michael L. Ondusko , Zhe Zhang
IPC分类号： F03B13/22
CPC分类号： F03B13/22 , F05B2250/44 , F05B2260/406
摘要： A wave energy converter is provided which includes a nacelle having a starboard side and a port side axis, and housing a power take-off. The wave energy converter also includes at least one buoyancy member coupled to the nacelle, and a ballast tank coupled to the nacelle. The ballast tank, the at least one buoyancy member, and the nacelle, together form a first body, where the first body is coupled to the power take-off. The wave energy converter further includes a float and a drive arm forming a second body, where the second body is rotatably coupled to the first body about a coupling axis, and the second body is coupled to the power take-off. The second body is configured to rotate relative to the first body about the coupling axis within a radial span bounded by a proximal end of the float and a radially distal end of the float. According to one aspect, the first body has a center of mass and a center of buoyancy, and the coupling axis is offset from a line formed between the center of mass and the center of buoyancy of the first body. Methods for generating power with the wave energy converter are also provided.

3. 发明公开

US20230151789A1 WAVE ENERGY CONVERTER 审中-公开
公开(公告)号：US20230151789A1
公开(公告)日：2023-05-18
申请号：US18060621
申请日：2022-12-01
申请人： Columbia Power Technologies, Inc.
发明人： Erik J. Hammagren , Pukha Lenee-Bluhm , Kelen P. Bush-O'Hearn , Michael L. Ondusko , Joseph H. Prudell , Leonard G. Rummel , Zhe Zhang
IPC分类号： F03B13/20
CPC分类号： F03B13/20 , F05B2270/18
摘要： A wave energy converter is provided which includes a central body including a nacelle, the nacelle housing at least one power take off. The wave energy converter also includes a first float and a first float arm coupled to the nacelle on a first side, and a second float and a second float arm coupled to the nacelle on a second side. The first float is rotatably coupled to the nacelle, the first float and the first float arm forming a first body configured to rotate, where the first body is operatively coupled to the at least one power take off such that relative motion between the first body and the central body generates energy in the at least one power take off. In one embodiment, the central body has a low reserve buoyancy, where the reserve buoyancy of the central body is lower than the reserve buoyancy of either of the first float and the second float, to minimize a heave response of the central body relative to the first float to increase output of the wave energy converter. In one embodiment, the central body includes a yoke extending downwardly from the nacelle, a plurality of lines attached to the base of the yoke, and a heave plate attached to the lower terminus of each of the plurality of lines.

4. 发明授权

US11542913B1 Wave energy converter 有权
公开(公告)号：US11542913B1
公开(公告)日：2023-01-03
申请号：US17528705
申请日：2021-11-17
申请人： Columbia Power Technologies, Inc.
发明人： Erik J. Hammagren , Pukha Lenee-Bluhm , Kelen P. Bush-O'Hearn , Michael L. Ondusko , Joseph H. Prudell , Leonard G. Rummel , Zhe Zhang
IPC分类号： F03B13/20
摘要： A wave energy converter is provided which includes a central body including a nacelle, the nacelle housing at least one power take off. The wave energy converter also includes a first float and a first float arm coupled to the nacelle on a first side, and a second float and a second float arm coupled to the nacelle on a second side. The first float is rotatably coupled to the nacelle, the first float and the first float arm forming a first body configured to rotate, where the first body is operatively coupled to the at least one power take off such that relative motion between the first body and the central body generates energy in the at least one power take off. In one embodiment, the central body has a low reserve buoyancy, where the reserve buoyancy of the central body is lower than the reserve buoyancy of either of the first float and the second float, to minimize a heave response of the central body relative to the first float to increase output of the wave energy converter. In one embodiment, the central body includes a yoke extending downwardly from the nacelle, a plurality of lines attached to the base of the yoke, and a heave plate attached to the lower terminus of each of the plurality of lines.

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