公开(公告)号：US11428201B2

公开(公告)日：2022-08-30

申请号：US16925117

申请日：2020-07-09

Applicant: AKTIEBOLAGET SKF

Inventor： Michael Baumann ,  Matthias Hofmann

IPC: F03B13/26 ,  F03B11/00 ,  F03B11/06

Abstract: A rotor shaft unit for a tidal system, which tidal system includes a main frame and a rotor and a housing connected to the rotor, includes a rotor shaft configured to be connected to the main frame, at least one bearing unit for rotatably supporting the housing for rotation relative to the rotor shaft, and a sleeve configured to be mounted in the main frame, the sleeve being disposed around a first end portion of the rotor shaft and connected to the rotor shaft by a friction connection. Also a tidal system including the rotor shaft unit.

公开(公告)号：US20210396202A1

公开(公告)日：2021-12-23

申请号：US17353557

申请日：2021-06-21

Applicant: HANGZHOU LHD INSTITUTE OF NEW ENERGY, LLC ,  ZHEJIANG UNIVERSITY OF SCIENCE AND TECHNOLOGY ,  HANGZHOU LINDONG NEW ENERGY TECHNOLOGY INC. ,  ZHEJIANG ZHOUSHAN LHD ENERGY DEVELOPMENT CO., LTD.

Inventor： Xiaonan MIAO ,  Dongfu ZHAO ,  Zhenhua WU ,  Jia LI ,  Yicheng DING ,  Qipeng LI ,  Huajun XU ,  Lijun HE ,  Huafeng ZHONG ,  Chao CHEN ,  Dongfang HU ,  Yangjie MAO ,  Enjia XU ,  Yunlin XIE ,  Chenhao WU ,  Enle LIN ,  Fuwei ZHU ,  Anpeng HE ,  Hongyue TIAN ,  Fan YANG

IPC: F03B11/06 ,  F03B11/00 ,  F03B13/26 ,  F16C33/66 ,  F16C33/78

Abstract: This invention provides a rolling bearing protection device and a vertical-axis tidal current energy generating device applying the same. The vertical-axis tidal current energy generating device includes a frame, a vertical-axis hydraulic generator, a rolling bearing, and a rolling bearing protection device. The vertical-axis hydraulic generator includes a main shaft disposed vertical to a horizontal surface, one end of the main shaft is rotatably disposed at a bottom of the frame. The rolling bearing is sleeved on one end of the main shaft. The rolling bearing protection device is disposed above the rolling bearing. The rolling bearing protection device includes a first sealing protection device, a first water leak-proof chamber, and a second sealing protection device disposed in sequence along a gravity direction.

公开(公告)号：US10961977B2

公开(公告)日：2021-03-30

申请号：US16664153

申请日：2019-10-25

Applicant: Andritz Hydro Canada Inc.

Inventor： Sarmad Elahi ,  Shawn Wale ,  Ryan Byrne ,  Andrew Wodoslawsky

IPC: F03B11/06 ,  F03B15/00 ,  G01B7/14 ,  F03B13/00 ,  H02K5/16

Abstract: A guide bearing system including a pad adjuster to traverse at least one bearing in a direction to adjust a radial clearance. The system can further include a sensor for measuring deviations in the radial clearance. In some embodiments, the guide bearing system includes a controller that receives a distance signal from the sensor measuring the radial clearance and signals the pad adjuster to traverse the at least one bearing to compensate for the deviations in the radial clearance.

公开(公告)号：US10920739B2

公开(公告)日：2021-02-16

申请号：US16248853

申请日：2019-01-16

Applicant: Moosa Nematollahi Saein

Inventor： Moosa Nematollahi Saein

IPC: F03B13/10 ,  F03B13/12 ,  F03B13/14 ,  H02K7/18 ,  F03B11/02 ,  F03B11/06

Abstract: A wave-power system configured to produce electric power is provided. The wave-power system may comprise a floating body structure, a set of blades attached to the floating body structure, a weight assembly, a bidirectional to unidirectional shaft assembly and/or a power unit. The weight assembly may comprise a plurality of weights which may rotate around a first axis of rotation as a result of floating movements of the floating body structure. Rotation of the plurality of weights may cause an input shaft of the bidirectional to unidirectional shaft assembly to rotate. An output shaft of the bidirectional to unidirectional shaft assembly may rotate in a first direction, regardless of a direction of rotation of the input shaft. Rotation of the output shaft causes the power unit to produce the electric power.

公开(公告)号：US10527021B2

公开(公告)日：2020-01-07

申请号：US15149984

申请日：2016-05-09

Applicant: Natel Energy, Inc.

Inventor： Abraham D. Schneider

IPC: F03B7/00 ,  F03B11/02 ,  F03B11/06 ,  F03B13/10 ,  F03B3/04 ,  F03B1/04 ,  F03B1/02 ,  F03B11/00

Abstract: Disclosed herein are linear hydraulic turbines in which the linear machine converts the majority of available energy in the flowing water into useful torque directly in the runner, leaving the outflow with very little velocity.

公开(公告)号：US20190326794A1

公开(公告)日：2019-10-24

申请号：US16502533

申请日：2019-07-03

Applicant: OCEANA ENERGY COMPANY

Inventor： Daniel E. POWER, III ,  Ned HANSEN

IPC: H02K7/18 ,  F03B11/06 ,  H02K7/09 ,  H02K1/27 ,  F03B17/06

Abstract: A hydroelectric turbine system includes a bridge assembly including a central supporting ring having an axially elongated body and a tongue extending axially from the body. An axial length of the body is greater than a radial thickness of the body. The radial thickness of the body is greater than a radial thickness of the tongue. The system includes a stator having a radially inner circumferential surface and a radially outer circumferential surface. The inner circumferential surface is disposed on a radially outer surface of the tongue. The system includes a bearing mechanism extending axially along the outer circumferential surface of the stator. The mechanism includes one or more bearings. Each bearing includes a surface that extends parallel to the outer circumferential surface of the stator. The system includes a rotor supported radially outward of the stator and configured to rotate relative to the stator about an axis of rotation.

公开(公告)号：US10371205B2

公开(公告)日：2019-08-06

申请号：US15541372

申请日：2015-06-30

Applicant: ZHEJIANG ZHOUSHAN LHD ENERGY DEVELOPMENT CO., LTD.

Inventor： Dong Lin

IPC: F03B13/26 ,  F16C33/10 ,  F16C17/12 ,  F16N7/02 ,  F03B13/00 ,  F01M11/12 ,  F03B11/06 ,  F03B13/10 ,  H02K7/18

Abstract: A tidal current energy generating device includes an outer frame (1), at least one inner frame (2), at least two hydro turbines (3), at least one center shaft (4), at least one generator (5), and at least three bearings (6). The at least one inner frame (2) is separably disposed in the outer frame (1). At least two hydro turbines (3) are located below a water surface and are disposed in one inner frame (2). At least two hydro turbines (3) are disposed coaxially and are vertical-axis hydro turbines. At least one center shaft (4) is disposed through the at least two hydro turbines (3), the axis direction of the center shaft is perpendicular to the horizontal plane, and the center shaft (4) rotates along with the rotating of the hydro turbines (3). The at least one generator (5) is located above the water surface and connected with one end of the center shaft (4). The at least three bearings are sleeved on the center shaft (4) and are located on two sides of and between the two hydro turbines (3), respectively. The tidal current energy generating device can be modularly assembled and replaced above the water surface and can extend along the water depth direction, thereby improving the power generating efficiency.

公开(公告)号：US10197038B2

公开(公告)日：2019-02-05

申请号：US15692049

申请日：2017-08-31

Applicant: Charles B. Culpepper

Inventor： Charles B. Culpepper

IPC: F03B3/04 ,  F03B3/12 ,  H02K7/116 ,  F03B11/02 ,  F03B11/06 ,  H02K7/18 ,  F03B3/18 ,  F03B11/00 ,  F03B17/06 ,  F03B13/26

Abstract: The invention disclosed herein comprises a system focusing water current into a relatively smaller diameter lumen, imparting vortical movement to the current, and directing the water vortex through an even smaller diameter lumen en route to turbine blades having long curved blades rotatable along an axis parallel with the lumen. Rotation of the turbine blades turns gearing interfacing with the circumference of the turbine assembly, to rotate a drive shaft connected to a generator.

公开(公告)号：US09890761B2

公开(公告)日：2018-02-13

申请号：US15391458

申请日：2016-12-27

Applicant: Gene D. Kasten

Inventor： Gene D. Kasten

IPC: F01D15/10 ,  F02C6/00 ,  H02K7/18 ,  H02P9/04 ,  F03B7/00 ,  F03B11/06 ,  F03B15/16 ,  F03B17/06 ,  H02P101/10

CPC classification number: F03B7/003 ,  F03B11/06 ,  F03B13/06 ,  F03B15/16 ,  F03B17/00 ,  F05B2220/706 ,  F05B2260/502 ,  H02K7/1823 ,  H02P9/04 ,  H02P2101/10 ,  Y02E10/20 ,  Y02E10/22 ,  Y02E10/223 ,  Y02E60/17

Abstract: A hydro-electric power system includes two containers and a support beam having two ends, each end holding one of the containers. The ends allow the containers to travel along a length of the support beam. The support beam pivots about a pivot point, giving each container a maximum height and a minimum height. Fluid flows into each of the containers when located near their maximum height, the flow of water weighting each container and causing it to descend, each container moving longitudinally outward from the pivot point along the support beam as it descends. A dumping mechanism causes each container to release fluid near its minimum height, each container ascending after releasing water and moving longitudinally inward toward the pivot point along the support beam.

公开(公告)号：US20160327011A1

公开(公告)日：2016-11-10

申请号：US15149984

申请日：2016-05-09

Applicant: Natel Energy, Inc.

Inventor： Abraham D. SCHNEIDER

IPC: F03B7/00 ,  F03B3/04 ,  F03B11/06 ,  F03B11/02 ,  F03B13/10

CPC classification number: F03B1/04 ,  F03B1/02 ,  F03B7/006 ,  F03B11/004 ,  F03B11/02 ,  F05B2220/32 ,  F05B2240/12 ,  F05B2240/123 ,  F05B2240/1231 ,  F05B2240/13 ,  F05B2240/244 ,  Y02E10/223 ,  Y02E10/226 ,  Y02E10/28

Abstract: Disclosed herein are linear hydraulic turbines in which the linear machine converts the majority of available energy in the flowing water into useful torque directly in the runner, leaving the outflow with very little velocity.

Abstract translation: 这里公开的是线性水力涡轮机，其中线性机器将流水中的大部分可用能量转化为直接在转轮中的有用扭矩，以非常小的速度离开流出。