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公开(公告)号：US1656006A
公开(公告)日：1928-01-10
申请号：US52781722
申请日：1922-01-09
发明人： LIEBER WILLIAM H
IPC分类号： F03B15/02
CPC分类号： F03B15/02 , Y02E10/226
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公开(公告)号：US1566725A
公开(公告)日：1925-12-22
申请号：US1566725D
IPC分类号： F03B15/02
CPC分类号： F03B15/02 , Y02E10/226
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公开(公告)号：US20240344495A1
公开(公告)日：2024-10-17
申请号：US18685380
申请日：2022-08-26
发明人： David OGDEN , Nathan Michael TOM , Jennifer VAN RIJ , Yi GUO
摘要： A two-body wave energy converter (WEC) that utilizes components in the two bodies having variable geometry is described. The WEC includes a surface control body which includes a first variable geometry component, and a reaction control body, which includes a second variable geometry component. During operating, the two variable geometry components may be substantially inflated to enable the WEC to generate electrical energy using power-take off (PTO) components or substantially deflated to allow for load shedding or protection from intense elements.
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公开(公告)号：US20240301852A1
公开(公告)日：2024-09-12
申请号：US18411777
申请日：2024-01-12
发明人： Sébastien RUIZ , Lionel MARTINEZ
CPC分类号： F03B3/10 , F03B15/005 , F03B15/02
摘要： The invention concerns a method for starting a hydroelectric turbine (10) in a pumping mode, said turbine being provided with a runner (6) mechanically coupled to a shaft line (8) and a variable speed electric motor connected to a grid, a distributor (4) comprising guide vanes to control a flow of water to said runner, the method comprising:
a) a step of operating the variable speed motor at least partly at fixed speed, said guide vanes being only partially opened, and of defining or calculating:
data of a plurality of hydraulic characteristics (C1, C2, Ci) of the turbine for an operation without cavitation;
data of an operation range of the electric motor, giving the speed of the motor as a function of its power;
b) then a step of operating the turbine in a power control mode.-
公开(公告)号：US20240253809A1
公开(公告)日：2024-08-01
申请号：US18629575
申请日：2024-04-08
申请人： GOODRICH CORPORATION
发明人： Jason Bradley Allen
CPC分类号： B64D41/00 , B64C25/50 , F03B5/00 , F03B11/004 , F03B15/02
摘要： A system for extracting energy for landing gear retraction may comprise a wheel pump rotationally coupled to a wheel via a pinion gear. A landing gear control valve assembly may be fluidly coupled to an output of the wheel pump. A secondary pump may be fluidly coupled to the landing gear control valve assembly, and an electric motor may be operationally coupled to the secondary pump.
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公开(公告)号：US20240191683A1
公开(公告)日：2024-06-13
申请号：US18550911
申请日：2022-03-16
申请人： Harald KUHN
发明人： Harald KUHN
CPC分类号： F03B17/062 , F03B5/00 , F03B15/02 , F03B11/002 , F03B11/02 , F03B15/005 , F05B2240/201 , F05B2240/312 , F05B2240/98
摘要： An energy generating device for generating energy from a flowing fluid, especially from a wind flow and/or from a water flow, comprises: a rotation body, the rotation body extending along an axis of rotation between a first point and a second point and the rotation body being adapted to rotate about the axis of rotation and the rotation body being formed from at least a first, a second, and a third rotation segment, wherein the rotation segments are joined together and arranged along the axis of rotation, and they form a region at least partly surrounded by fluid, wherein the second rotation segment is situated between the first and the third rotation segment and has a different diameter than the first and third rotation segment; and a generator device mechanically connected to the rotation body, wherein the generator device is adapted to generate energy which is produced from the rotation of the rotation body.
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公开(公告)号：US11111897B2
公开(公告)日：2021-09-07
申请号：US16348215
申请日：2017-10-26
发明人： Paolino Tona , Hoai-Nam Nguyen
摘要： The present invention provides improvement of the operation of a wave energy system by use of a method for predictive control (COM) of the converter machine that maximizes the energy generated by considering the energy conversion efficiency (MOD ENE) and a wave prediction (PRED). Furthermore, the method according to the invention determines the optimal control by minimizing an objective function weighted and discretized by the trapezoidal rule.
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公开(公告)号：US20210199084A1
公开(公告)日：2021-07-01
申请号：US16616894
申请日：2018-11-14
摘要： This invention regards a hydraulic turbine (1) to operate in pressure circuits, where there is a flow of a fluid, to control the flow and pressure downstream the installation point. Even so, said turbine (1) can generate power for itself based on the difference of pressure and flow, as the remaining power can be used in public power networks or isolated. Its application field comprises sanitation companies, beverage industries, paper and cellulose industries, petrochemical companies or any places, where it is needed to control the flow and pressure in supply networks.
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49.发明授权公开(公告)号：US10815959B2
公开(公告)日：2020-10-27
申请号：US16496872
申请日：2018-02-26
发明人： Paolino Tona , Hoai-Nam Nguyen
摘要： The present invention is a method of controlling a wave energy system (COM), wherein the force fex exerted by the waves on a mobile float of the wave energy system is estimated, then at least one dominant frequency ωex of the force exerted by the waves on the mobile float is determined using an unscented Kalman filter (UKF), and the control (COM) of the wave energy system is determined by a variable-gain PI control law whose coefficients are a function of dominant frequency ωex.
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公开(公告)号：US20200240389A1
公开(公告)日：2020-07-30
申请号：US16746799
申请日：2020-01-17
申请人： Kenneth Miles Hanson
发明人： Kenneth Miles Hanson
IPC分类号： F03B15/02
摘要： A pump storage hydroelectricity storage and generation system configured to burn un-scrubbed gas and generate electricity with minimal elevation differential between upper and lower fluid storage reservoirs.
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