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公开(公告)号：US11994112B2
公开(公告)日：2024-05-28
申请号：US17290947
申请日：2019-11-05
CPC分类号： F03D80/30 , F03D1/0675 , H02G13/40 , F05B2280/2001 , F05B2280/2006
摘要： A sparcap for a spar structure inside a wind turbine blade is provided. A down conductor element is integrated on a side of the sparcap such that after assembly of the sparcap into the spar structure, the down conductor element extends along an outer corner of the spar structure.
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2.发明授权公开(公告)号：US10451030B2
公开(公告)日：2019-10-22
申请号：US15166340
申请日：2016-05-27
摘要： A wind turbine blade comprising first and second adjacent blade sections arranged end to end along the length of the blade. Each section comprises an aerodynamic fairing and a spar. Each spar comprises a shear web extending across the fairing and a pair of spar caps, one at either end of the shear web. Each spar cap in the first section has a different cross-sectional shape and/or material from the respective spar cap in the second section and wherein the spar cap in the first section is joined to the respective spar cap in the second section via a connection piece. Each connection piece is a pre-cured component extending along the length of the blade from a first inclined end configured to connect to a first complimentary inclined end of a spar cap of the first blade section and a second inclined end.
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公开(公告)号：US10273937B2
公开(公告)日：2019-04-30
申请号：US15166849
申请日：2016-05-27
发明人： Paul Trevor Hayden , Harald Behmer
IPC分类号： F03D13/10 , B32B3/02 , F03D1/06 , B29C65/48 , B29C65/50 , B29C65/00 , B29C70/06 , B29C70/30 , B32B5/26 , B29L31/08
摘要： A composite member comprises first and second elongate composite elements. Each has a wedge shaped end with a complimentary tapered end surface. At least one of the components is formed of a stack of fiber layers impregnated in resin, with the tapered end surface being formed by each fiber layer extending longitudinally progressively further than the adjacent layer towards the thin end of the wedge at which the fiber layers have the greatest longitudinal extent. The components are joined at their tapered ends by an adhesive, and the properties of the cured composite material of the at least one component and/or the properties of the adhesive are different in the vicinity of the thin end of the wedge as compared to the rest of the tapered surface in order to reduce the stress concentrations in this region.
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4.发明授权公开(公告)号：US09897066B2
公开(公告)日：2018-02-20
申请号：US14261224
申请日：2014-04-24
CPC分类号： F03D1/06 , B29C70/083 , B29C70/30 , B29C70/865 , B29D99/0028 , B29K2101/10 , F03D1/0658 , F03D3/062 , F03D3/064 , F05B2230/50 , F05B2230/60 , Y02E10/721 , Y02E10/74 , Y02P70/523 , Y10T29/49336
摘要： A method of making a root end joint for a wind turbine. A plurality of root segments (10) are formed of a composite material. Each has an arcuate end face (11) which subtends an angle of 90° or less and has a plurality of connection holes (12). The segments are joined together side-by-side to build up the circular profile of the root end. The segments include a proportion of uni-axial to multiaxial fiber which decreases from the arcuate end face towards the opposite end.
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公开(公告)号：US11879426B2
公开(公告)日：2024-01-23
申请号：US17283379
申请日：2019-10-29
CPC分类号： F03D1/0675 , B29C65/48 , B29C66/345 , B29C66/54 , B29C66/545 , B29C66/721 , B29D99/0025 , B29L2031/085 , F05B2230/23 , F05B2280/4007 , F05B2280/6013
摘要： A rotor blade assembly includes a rotor blade defining a pressure side and a suction side extending between a leading edge and a trailing edge. Further, the rotor blade assembly includes at least one structural feature secured within the rotor blade and spaced apart from the trailing edge to define a void between the pressure side, the suction side, and the trailing edge. Moreover, the rotor blade assembly includes an adhesive filling the void between the pressure side, the suction side, and the trailing edge to provide an adhesive connection between the pressure side, the suction side, the trailing edge, and the structural feature(s). In addition, the adhesive contacts the structural feature(s) at an interface and defines a fillet profile.
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公开(公告)号：US10240578B2
公开(公告)日：2019-03-26
申请号：US14909193
申请日：2014-07-30
IPC分类号： F03D1/06 , B29C70/08 , B29K63/00 , B29L31/08 , B29K105/08 , B29K309/08 , B29K675/00
摘要： An erosion resistant aerodynamic fairing for a rotor blade. A fairing body is formed from at least one reinforcing fiber layer set in a cured resin. An erosion resistant pre-form is fixed to an outer surface of the fairing body. The erosion resistant pre-form comprises a thermoplastic film outer layer fused to a fiber substrate. The fiber substrate of the erosion resistant pre-form is impregnated with the cured resin of the fairing body which fixes at the preform to the fairing body.
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公开(公告)号：US20160146187A1
公开(公告)日：2016-05-26
申请号：US14946362
申请日：2015-11-19
发明人： Paul Trevor Hayden , David Whiley
IPC分类号： F03D1/06
CPC分类号： F03D1/0691 , F05B2280/6003 , Y02E10/721
摘要： A hub for a blade having a central axis rotatably mountable on a shaft including three or more blade supporting arms for supporting a blade, the hub having a leeward side facing a supporting tower and a windward side facing the opposite direction, wherein the side arm includes a pair of composite load bearing spar caps with uniaxial fibres extending from the radially outermost extremity of the hub, past the shaft with one of the pair on each side of the shaft, across an adjacent arm and terminating at the far side of the arm, and on the windward side, a second pair of composite load bearing spar caps with uniaxial fibres extending continuously from the radially outermost extremity of the hub, past the shaft, with one of the second pair on each side of the shaft, across an adjacent arm and terminating on the far side of the arm.
摘要翻译： 一种用于叶片的轮毂，其具有可旋转地安装在轴上的中心轴，所述轴包括用于支撑叶片的三个或更多个叶片支撑臂，所述轮毂具有面向支撑塔的背风侧和面向相反方向的迎风侧，其中所述侧臂包括 一对具有从轮毂的径向最外端延伸的单轴纤维的复合承载翼梁帽穿过轴，其中一对中的一对在轴的每一侧上穿过相邻的臂并终止于臂的远侧， 并且在迎风侧，具有单轴纤维的第二对复合载荷承载翼梁帽，其从轮毂的径向最外侧的末端连续地延伸穿过轴，其中第二对中的一个在轴的每一侧上穿过相邻的臂 并在臂的远侧终止。
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公开(公告)号：US10677215B2
公开(公告)日：2020-06-09
申请号：US15166484
申请日：2016-05-27
发明人： Paul Trevor Hayden , Harald Behmer
摘要： A wind turbine blade and a method of moulding a wind turbine blade tip section. The overall wind turbine blade has an elongate structure extending in a radial sense in a finished wind turbine. The blade comprises a fairing that one is supported along its length by a spar extended along the full length of the fairing from the root end to the tip. The fairing is in two parts with a main part extending from the root for most the of the longitudinal length of the blade and the tip section forming the remainder of the blade.
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公开(公告)号：US10184448B2
公开(公告)日：2019-01-22
申请号：US15151806
申请日：2016-05-11
IPC分类号： F03D1/06
摘要： A wind turbine blade which is at least 45 m long. The blade has a main axis in the lengthwise direction from root to tip and an aerodynamic shell surrounding a spar which extends in a lengthwise direction along a substantial proportion of the blade at least a portion of the half of the shell closest to the tip. The blade is reinforced by high stiffness fibers having a Young's modulus to density ratio of greater than 50 GPa/(g·cm−3), and an electrical resistivity of greater than 1010 Ω·cm. The fibers are biaxial with a first axis angled with respect to the main axis at an acute angle and a second axis angled with respect to the main axis at an acute angle in the opposite sense to the first angle.
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公开(公告)号：US10125741B2
公开(公告)日：2018-11-13
申请号：US14092792
申请日：2013-11-27
IPC分类号： F03D1/06
摘要： A wind turbine rotor comprising a hub (1) from which a plurality of blades (2) project to a radius of at least 50 meters. Each blade comprising a hollow fairing supported by a central spar. Each blade has a thickness t at a radius r; characterized in that when r=0.5 R, t>0.3 T, where R is the radius of the blade and T is the thickness of the blade at the root end. By being thicker for a greater proportion of the blade, the aerodynamic performance of this part of the blade is worse, but this is more than compensated for as it allows better aerodynamic performance where it matters more, namely at the outer part of the blade. It also allows larger blades to be provided.
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