A latch mechanism for use in a ram air turbine actuator including: a coupler housing extending from a first end to a second end opposite the first end, the coupler housing including: a base arm having an upper surface and a lower surface opposite the upper surface; a first wall extending away from the upper surface, the first wall including a first slot; and a second wall extending away from the upper surface, the second wall including a second slot, wherein the upper surface, the first wall, and the second wall at least partially enclose a cavity therebetween; a lock release pivot arm including: a first end; a second end opposite the first end of the lock release pivot arm; an orifice located proximate the second end of the lock release pivot arm; and a pivot pin located within the first slot, the second slot, and the orifice.

An all-weather maintenance system for an offshore wind turbine maintenance program includes a maintenance capsule for transporting tools, parts and maintenance personnel to and from respective wind turbine towers, a maintenance vessel with a capsule support apparatus for transporting capsules supported on board by the capsule support apparatus to and from respective wind turbine towers, and a crane assembly with a trolley for transporting capsules between the respective wind turbine towers and the maintenance vessel.

A strut linkage for a steel construction may involve a tower of a wind turbine and/or a corner post of a lattice tower. In order that high forces can be removed via the strut linkage without causing increased stress concentrations, excessive use of material, and/or an excessive structural outlay, a plate element is provided for arranging between, preferably load-bearing, steel construction components. At least one connection element, which may be connected to the plate element, may be utilized to fasten at least one strut and/or guy of the steel construction to the steel construction components via the plate element.”

Tools, systems, and methods for use in conjunction with maintenance, assembly, rebuilding, or other procedures which involve displacing components of an assembly are disclosed. These tools, systems, and methods may be used in conjunction with a crane or other lifting device and may be configured to assemble, disassemble, or otherwise maintain components of an uptower gearbox.

An arrangement and a method to align a part of a wind turbine to a counterpart is provided. The part of the wind turbine and its counterpart are approached in a main direction of approach, to be connected. The arrangement includes a first and a second alignment tool, whereby the alignment tools include a first area to be connected to the part of the wind turbine, and a second area that protrudes over the physical dimensions of the part of the wind turbine mainly in the main direction of approach. The second area is arranged and prepared in a way to abut on the counterpart, in a direction perpendicular to the main direction of approach, as an arrester to stop and/or hinder a movement of the part of the wind turbine in respect to the counterpart during the alignment.

An inverted funnel-shaped columnar tower (115) includes a window region (120), a heat absorbing surface (130), an air entrance (116) and exit (117). Solar energy passes through the window region and heats the heat absorbing surface. A plurality of fans (145), each connected to a generator (150), are suspended within the tower and extract energy from convectively rising air, generating electricity. A fan (160) outside the tower intercepts wind and turns an internal fan (145′) that aids the convective flow, providing a self-starting feature. A plurality of rotors (100) with wings (705) are connected in groups to generators (725) and all are arranged adjacent the tower. The rotors intercept wind energy and deliver it to the generators for conversion to electricity. The rotors include a flap (800) that predetermines the direction of rotation of the rotor, providing a second self-starting feature. The convection and wind capture functions operate independently.

A vehicle-based airborne wind turbine system having an aerial wing, a plurality of rotors each having a plurality of rotatable blades positioned on the aerial wing, an electrically conductive tether secured to the aerial wing and secured to a ground station positioned on a vehicle, wherein the aerial wing is adapted to receive electrical power from the vehicle that is delivered to the aerial wing through the electrically conductive tether; wherein the aerial wing is adapted to operate in a flying mode to harness wind energy to provide a first pulling force through the tether to pull the vehicle; and wherein the aerial wing is also adapted to operate in a powered flying mode wherein the rotors may be powered so that the turbine blades serve as thrust-generating propellers to provide a second pulling force through the tether to pull the vehicle.

A system for manufacturing a tower structure of a wind turbine includes an additive printing device having a central frame structure with a platform and an arm member. The arm member is generally parallel to a longitudinal axis of the tower structure. The additive printing device also includes a plurality of robotic arms secured to the arm member of the central frame structure. Each of the robotic arms includes a printer head for additively printing one or more materials. The additive printing device further includes at least one nozzle configured for dispensing a cementitious material. Moreover, the system includes one or more molds additively printed via the additive printing device of a polymer material. As such, the mold(s) define inner and outer wall limits of the tower structure. After the mold(s) are printed and solidified, at least one of the printer heads or the nozzle of the additive printing device is configured to dispense the cementitious material between the inner and outer wall limits of the tower structure.

The present invention relates to a damper module adapted to be secured to a wind turbine tower section, the damper module comprising at least one liquid damper secured to a frame structure, wherein each liquid damper comprises a container comprising an interior volume containing an amount of liquid, wherein the amount of liquid in the interior volume of the container sets a natural frequency of the liquid damper, and wherein the frame structure comprises an interface arrangement configured for, in cooperation with a damper module suspension arrangement in a tower section, securing the damper module to said tower section, and a liquid damper fastening arrangement configured for securing said at least one liquid damper to the frame structure. The present invention further relates to a liquid damper and a tower section having at least one damper module secured thereto.

A hybrid tower section for arrangement between a concrete tower section and a steel tower section of a hybrid tower for a wind power installation. The hybrid tower section comprises a steel flange having a multiplicity of annularly arranged blind holes and having a multiplicity of annularly arranged passage holes, a steel outer casing, and a concrete core, wherein the annular arrangement of the blind holes has a larger radius than the annular arrangement of the passage holes, wherein the steel outer casing has a larger radius than the annular arrangement of the blind holes, wherein the concrete core adjoins the steel flange and the steel outer casing, and a radially inner side of the concrete core has a larger radius than the annular arrangement of the passage holes.