-
公开(公告)号：US12078142B2
公开(公告)日：2024-09-03
申请号：US17921824
申请日：2021-05-07
CPC分类号： F03D1/02 , F03D1/0675 , F03D3/064 , F05B2210/16 , F05B2240/374
摘要： The invention relates to a turbine comprising a primary rotor, for positioning in a fluid flow, having a primary rotor blade rotatable around a primary rotor axis under influence of the fluid flow acting on the primary rotor blade and extending from the primary rotor axis along a longitudinal axis to a free outer end of the primary rotor blade. The primary rotor blade is provided near the free outer end with a secondary rotor. The secondary rotor has a secondary rotor blade rotatable around a secondary rotor axis in response to a rotation of the primary rotor blade around the primary rotor axis. The secondary rotor axis is substantially transverse to the longitudinal axis of the primary rotor blade. The secondary rotor axis is also substantially transverse to the primary rotor axis. The turbine is characterised in that the secondary rotor axis is positioned offset from the longitudinal axis of the primary rotor blade.
-
公开(公告)号：US12037982B2
公开(公告)日：2024-07-16
申请号：US18009942
申请日：2021-06-09
CPC分类号： F03D7/0204 , F03D1/02 , F03D17/00 , F03D1/181 , F03D7/02 , F03D7/04 , F03D7/044 , F03D7/045 , F03D7/048 , F03D9/257 , F03D17/007 , F03D17/029 , F05B2240/2212 , F05B2240/2213 , F05B2270/32 , F05B2270/321 , F05B2270/329
摘要： The present invention relates to a multirotor wind turbine comprising at least two rotor nacelle assemblies mounted to a support arrangement via respective yawing systems, and a toe angle control system for controlling the toe angles of the rotor nacelle assemblies with respect to the support arrangement; wherein the toe angle control system is configured to operate in a first mode in which the rotor nacelle assemblies are held at positive toe angles while the wind turbine is generating power in a main production mode; wherein the toe angle control system is further configured to monitor the operating mode of the wind turbine, and to switch to a second mode in which the yawing systems of the rotor nacelle assemblies are operated to reduce the toe angles of the rotor nacelle assemblies if an operating mode-based trigger condition has been met.
-
公开(公告)号：US11994108B2
公开(公告)日：2024-05-28
申请号：US17258430
申请日：2019-07-03
CPC分类号： F03D7/0296 , F03D1/02 , F03D7/0224 , F03D7/0264 , F03D7/042 , F05B2240/211 , F05B2240/37 , F05B2260/70 , F05B2260/964 , F05B2270/327
摘要： A method of damping oscillations in a multi-rotor wind turbine and a wind turbine are provided. The wind turbine comprises a wind turbine support structure and at least a first nacelle with a first rotor and a second nacelle with a second rotor, at least one of the nacelles being located at a position away from a central longitudinal axis of the wind turbine support structure. The method comprises the steps of receiving and processing motion data, selecting a damping algorithm and generating a pitch control signal. The processing comprises determining at least one prominent oscillation mode of the wind turbine support structure and selecting a corresponding damping algorithm.
-
公开(公告)号：US11971008B2
公开(公告)日：2024-04-30
申请号：US17434088
申请日：2019-08-20
CPC分类号： F03D1/04 , F03D1/02 , F05B2240/13 , F05B2240/133 , F05B2240/40 , F05B2250/27
摘要： The wind wall is a solid structure composed of modular wind cells; the joint between two adjoining wind cells, seen from a cross-section that passes parallel through the axes of axial symmetry of both wind cells, include a shape of a complete airfoil, and both wind cells are arranged sharing a same chord; where this chord is contained by the adjacent outer section of both wind cells. It is an aerodynamic structure specially designed to increase the wind speed within a critical space and, therefore, increase the wind power available to be used by the rotor of a wind turbine.
-
公开(公告)号：US11781521B2
公开(公告)日：2023-10-10
申请号：US17186739
申请日：2021-02-26
IPC分类号： F03D1/02 , F03B3/04 , F01D13/00 , F01D5/02 , F01D13/02 , F03D13/10 , F03D1/06 , F03D7/02 , F03B3/18 , F03B3/12 , F03D3/02 , F03B3/02
CPC分类号： F03D1/02 , F01D5/021 , F01D13/00 , F01D13/003 , F01D13/006 , F01D13/02 , F03B3/02 , F03B3/04 , F03B3/12 , F03B3/18 , F03D1/0633 , F03D3/02 , F03D7/0276 , F03D13/10
摘要： A toroidal lift force engine is provided. Illustratively, the toroidal lift force engine operates in an enclosed environment without heat and/or expelling particles of any kind, utilizing asymmetric pressure distribution on lift turbine blades solely to generate thrust with the normal component of this lift force, while using the tangential component of this lift force to drive accessories, provide control to the fluid velocity, and/or provide motivation of the fluid's flow. The toroidal lift force engine may be utilized to generate thrust, heat and/or electricity for powering vehicles, homes, etc.
-
公开(公告)号：US20190003457A1
公开(公告)日：2019-01-03
申请号：US16063576
申请日：2016-12-12
CPC分类号： F03D7/042 , F03D1/02 , F03D7/0224 , F03D7/026 , F03D7/0264 , F03D7/0296 , F05B2260/74 , F05B2260/85 , F05B2260/90 , F05B2270/1095 , F05B2270/111 , F05B2270/32 , F05B2270/327 , F05B2270/328 , F05B2270/335 , Y02E10/723
摘要： There is presented a wind turbine system, wherein the wind turbine system is comprising a support structure, a plurality of wind turbine modules mounted to the support structure wherein each of the plurality of wind turbine modules comprises a rotor, and wherein the wind turbine system further comprises a control system, wherein the control is arranged to execute a wind turbine system transition from a first system operational state of the wind turbine system to a second system operational state of the wind turbine system, and wherein the wind turbine system transition is performed by executing a plurality of wind turbine module transitions from a first module operational state of a wind turbine module to a second module operational state of the wind turbine module wherein the plurality of wind turbine module transitions are distributed in time with respect to each other.
-
公开(公告)号：US09909560B1
公开(公告)日：2018-03-06
申请号：US15630135
申请日：2017-06-22
申请人： Daniel F. Hollenbach
发明人： Daniel F. Hollenbach
CPC分类号： F03D1/04 , F03B17/061 , F03D1/02 , F03D9/25 , F05B2210/16 , F05B2220/706 , F05B2240/12 , F05B2240/14 , F05B2240/921 , F05B2240/97 , F05B2270/18
摘要： An energy conversion system having two or more enclosures supported in a vertically-stacked configuration by an enclosure support. The enclosures are airfoil-shaped and enclose multiple oppositely-rotating fluid turbines. Fluid directing structures formed in the enclosure direct fluid into and out of the enclosure, including through the turbines. The fluid directing structures are parallel slats formed into the enclosure.
-
公开(公告)号：US09899127B2
公开(公告)日：2018-02-20
申请号：US14928850
申请日：2015-10-30
申请人： X Development LLC
CPC分类号： H01B9/006 , D07B1/147 , D07B1/148 , D07B5/006 , D07B2201/2087 , D07B2201/2088 , D07B2201/209 , D07B2201/2094 , D07B2205/2003 , D07B2205/201 , D07B2205/2046 , D07B2205/2064 , F03D1/02 , F03D5/00 , F03D9/25 , F03D9/30 , F03D13/20 , F03D80/00 , F05B2240/917 , F05B2240/921 , H01B7/043 , H02G11/00 , Y02E10/725 , D07B2801/22
摘要： A tether may include a core, a plurality of electrical conductors wound around the core, and a jacket surrounding the plurality of electrical conductors. The plurality of electrical conductors may include at least two groups of electrical conductors. Each group of electrical conductors of the at least two groups of electrical conductors may define a respective electrical path, where the respective electrical path is different from the electrical paths defined by other groups of electrical conductors of the at least two groups of the electrical conductors. Moreover, each group of electrical conductors of the at least two groups of electrical conductors is located around a respective portion of the core, such that a cross-section of each group of electrical conductors of the at least two or more electrical conductors defines a respective arc around the respective portion of the core.
-
公开(公告)号：US09863313B2
公开(公告)日：2018-01-09
申请号：US14528107
申请日：2014-10-30
发明人： Ari Glezer , Mark Simpson
CPC分类号： F02C1/05 , F03D1/02 , F03D9/25 , F03D9/39 , F03G6/045 , F05B2220/60 , F05B2240/132 , F05B2260/24 , Y02E10/465 , Y02E10/725
摘要： Various examples are provided for power generation using buoyancy-induced vortices. In one example, among others, a vortex generation system includes an array of hybrid vanes comprising a first vane section in a surface momentum boundary layer and a second vane section above the first vane section. The first vane section is configured to impart a first angular momentum on the preheated air in the surface momentum boundary layer and the second vane section is configured to impart a second angular momentum on preheated air drawn through the second vane section. In another embodiment, a method for power extraction from a buoyancy-induced vortex includes imparting angular momentum to preheated boundary layer air entrained by a thermal plume to form a stationary columnar vortex. The angular momentum can be imparted to the preheated boundary layer air at a plurality of angles by an array of hybrid vanes distributed about the thermal plume.
-
10.发明申请公开(公告)号：US20170363069A1
公开(公告)日：2017-12-21
申请号：US15595354
申请日：2017-05-15
CPC分类号： F03D13/25 , B64C39/022 , B64F1/08 , F03D1/02 , F03D5/00 , F03D7/042 , F05B2240/90 , F05B2240/92 , F05B2240/921 , F05B2240/95 , H02G11/02 , Y02E10/70
摘要： A method of generating power. An airborne power generating craft is connected to a floating structure using an aloft portion of a tether line. The floating structure is connected to an anchor using an underwater portion of the tether line. The anchor is secured to an underwater floor. Power is generated based on movement of the airborne power generating craft in response to a wind force. The floating structure is connected to an electrical transmission system through at least part of the tether line. The generated power is transmitted to the electrical transmission system.
-
-
-
-
-
-
-
-
-
搜索结果
443 条记录 (耗时 0.027 秒)
