Abstract: The invention relates to a sectional blade for a wind turbine, the blade comprising at least a first blade section and a second blade section extending in opposite directions from a blade joint, where each blade section comprises a spar section forming a structural member and extending in the longitudinal direction of the blade, and where the first and second blade sections are connected by fastening means restraining any movement of the first blade section relative to the second blade section length ways. The first and the second blade sections are structurally connected by a spar bridge protruding from one of the blade sections and terminating axially in an end portion, which is received in the spar section of the other blade section. The spar bridge and the spar section have interlocking shapes by which rotation of the spar bridge in the spar section is prevented thereby preventing rotation of one of the blade sections relative to the other.

Abstract: A sectional blade for a wind turbine, the blade extending lengthwise between a tip and a root where the blade is attachable to a hub of a wind turbine, crosswise between a leading edge and a trailing edge, and thickness wise between a windward and a leeward outer surface. The sectional blade comprises a first blade portion and a second blade portion. The blade portions are formed as separate components and arranged to extend lengthwise in opposite directions from a junction where the blade portions join. The blade forms, in a cross section perpendicular to the lengthwise direction and through the junction, a maximum thickness location between the leading and trailing edges, the maximum thickness location being where the distance between the windward and leeward outer surfaces is larger than at any other location in this cross section.

Abstract: Wind turbine blade comprising two or more blade sections each of which defines a non-joint zone and, at one or each of its ends, a joint zone. The blade sections are connected in pairs such that the joint zones of each pair are connected at a joint, whereby the joint is positioned between two non-joint zones. At least one of the joints have an increased thickness and a wider chord relative to the thickness and the chord of the two non-joint zone between which the joint is positioned so as to increase the second moment of inertia in the area of the joint.

Abstract: A lightning protection mesh for a blade of a wind turbine comprising a first set of wires running in a first direction, and a second set of wires running in a second, different direction. The mesh has at least one tapered end at which wires from at least one of the first and second set of wires run together. The total conducting cross-sectional area formed by the wires in the tapered end is maintained within the tapered end, and the wires are bundled at the tapered end to provide an electrical connection to the mesh.

Abstract: A sectional blade for a wind turbine, the blade extending lengthwise between a tip and a root where the blade is attachable to a hub of a wind turbine, crosswise between a leading edge and a trailing edge, and thickness wise between a windward and a leeward outer surface. The sectional blade comprises a first blade portion and a second blade portion. The blade portions are formed as separate components and arranged to extend lengthwise in opposite directions from a junction where the blade portions join. The blade forms, in a cross section perpendicular to the lengthwise direction and through the junction, a maximum thickness location between the leading and trailing edges, the maximum thickness location being where the distance between the windward and leeward outer surfaces is larger than at any other location in this cross section.

Abstract: The invention relates to a sectional blade for a wind turbine, the blade comprising at least a first blade section and a second blade section extending in opposite directions from a blade joint, where each blade section comprises a spar section forming a structural member and extending in the longitudinal direction of the blade, and where the first and second blade sections are connected by fastening means restraining any movement of the first blade section relative to the second blade section length ways. The first and the second blade sections are structurally connected by a spar bridge protruding from one of the blade sections and terminating axially in an end portion, which is received in the spar section of the other blade section. The spar bridge and the spar section have interlocking shapes by which rotation of the spar bridge in the spar section is prevented thereby preventing rotation of one of the blade sections relative to the other.

Abstract: A sectional blade for a wind turbine comprising a first and a second blade section extending in opposite directions from a blade joint, and each blade section comprising a spar section forming a structural member of the blade. The blade sections are structurally connected by a spar bridge over a spar joint, which comprises a center beam of two extending beam caps joined by one or more extending beam webs. The spar joint further comprises at least two extending spar caps and one or more extending spar webs connecting the spar caps to opposite sides of the center beam. A method of manufacturing such a sectional blade is also disclosed.

Abstract: A sectional blade for a wind turbine comprising a first and a second blade section extending in opposite directions from a blade joint, and each blade section comprising a spar section forming a structural member of the blade. The blade sections are structurally connected by a spar bridge extending into the first and second blade sections to facilitate joining of the blade sections. The spar bridge comprises a stiffening member protruding from the spar bridge in a chord wise direction of the blade for increasing the edgewise stiffness of the blade, and wherein a part of the surface of the stiffening member is shaped to follow an inner surface contour of the blade. A method of manufacturing such a sectional blade is also disclosed.

Abstract: A method of manufacturing a wind turbine rotor blade is provided. Anticipated primary load paths within the rotor blade are predicted. Fibers of reinforcing material are dispensed onto a mold, having an orientation pattern of the fibers which is selected in dependence on the predicting step. Resin is also dispensed into the mold. A wind turbine rotor blade is provided. The blade comprises fibers of reinforcing material which are embedded in resin. The fibers are short, say in the range of 5 to 200 mm, and are orientated in dependence on an anticipated structural loading pattern of the rotor blade.

Abstract: Wind turbine blade comprising two or more blade sections each of which defines a non-joint zone and, at one or each of its ends, a joint zone. The blade sections are connected in pairs such that the joint zones of each pair are connected at a joint, whereby the joint is positioned between two non-joint zones. At least one of the joints have an increased thickness and a wider chord relative to the thickness and the chord of the two non-joint zone between which the joint is positioned so as to increase the second moment of inertia in the area of the joint.

Abstract: The invention provides a sectional blade for a wind turbine. The blade comprises at least a first blade portion and a second blade portion extending in opposite directions from a joint. The first blade portion and the second blade portion are structurally connected by at least one spar bridge extending into both blade portions to facilitate joining of said blade portions.

Abstract: A sectional blade for a wind turbine comprising a first and a second blade section extending in opposite directions from a blade joint, and each blade section comprising a spar section forming a structural member of the blade. The blade sections are structurally connected by a spar bridge over a spar joint, which comprises a center beam of two extending beam caps joined by one or more extending beam webs. The spar joint further comprises at least two extending spar caps and one or more extending spar webs connecting the spar caps to opposite sides of the center beam. A method of manufacturing such a sectional blade is also disclosed.

Abstract: A sectional blade for a wind turbine comprising a first and a second blade section extending in opposite directions from a blade joint, and each blade section comprising a spar section forming a structural member of the blade. The blade sections are structurally connected by a spar bridge extending into the first and second blade sections to facilitate joining of the blade sections. The spar bridge comprises a stiffening member protruding from the spar bridge in a chord wise direction of the blade for increasing the edgewise stiffness of the blade, and wherein a part of the surface of the stiffening member is shaped to follow an inner surface contour of the blade. A method of manufacturing such a sectional blade is also disclosed.

Abstract: A lightning protection mesh for a blade of a wind turbine comprising a first set of wires running in a first direction, and a second set of wires running in a second, different direction. The mesh has at least one tapered end at which wires from at least one of the first and second set of wires run together. The total conducting cross-sectional area formed by the wires in the tapered end is maintained within the tapered end, and the wires are bundled at the tapered end to provide an electrical connection to the mesh.

Abstract: A method of manufacturing a wind turbine rotor blade is provided. Anticipated primary load paths within the rotor blade are predicted. Fibres of reinforcing material are dispensed onto a mould, having an orientation pattern of the fibres which is selected in dependence on the predicting step. Resin is also dispensed into the mould. A wind turbine rotor blade is provided. The blade comprises fibres of reinforcing material which are embedded in resin. The fibres are short, say in the range of 5 to 200 mm, and are orientated in dependence on an anticipated structural loading pattern of the rotor blade.

Abstract: A member for potential equalising in a wind turbine blade between a first conducting member, such as a member comprising carbon fibres, and a second conducting member, such as a lightning conductor is provided. Furthermore, methods for manufacturing of such members for potential equalising are provided. The member for potential equalising comprises a first contact part suitable for connection to a conducting member comprising carbon fibres, a second contact part and an electrical conductor between the contact parts and the first contact part, wherein the first contact part is shaped substantially as a ribbon.

Abstract: A member for potential equalising in a wind turbine blade between a first conducting member, such as a member comprising carbon fibres, and a second conducting member, such as a lightning conductor is provided. Furthermore, methods for manufacturing of such members for potential equalising are provided.

Abstract: The invention relates to a method of manufacturing a wind turbine blade, said method comprising the steps of: casting at least two wind turbine shells and preferably one or more load bearing structures, forming a wind turbine blade structure including at least two longitudinal joints by adhering said at least two wind turbine shells and said one or more load bearing structures together, forming one or more front covers to a shape substantially corresponding to said wind turbine blade structure or sections hereof, positioning said one or more front covers in relation to said wind turbine blade structure, and fastening said one or more front covers to said wind turbine blade structure with adhering means. The invention also relates to a wind turbine blade, front cover and the use of a front cover as a unit for supplementary mounting on a wind turbine blade.