A drive assembly for adjusting the pitch of a wind turbine blade comprises a stator having a cylindrical body and a drive member positioned at least partially within the cylindrical body and movable along an axis thereof. A mounting pin extends through an aperture in a wall of the cylindrical body for pivotally mounting the stator to a wind turbine structure.

The present disclosure relates to an assembly comprising a rotor hub, a generator rotor, and a shaft for supporting the generator rotor on a stationary frame, wherein the rotor hub is configured to be removable from the generator rotor and the shaft without disassembling the generator rotor from the shaft. The present disclosure further relates to methods for assembly.

Provided is a wind turbine blade spar cap for a wind turbine blade for a wind turbine, the wind turbine blade including a down conductor, the wind turbine blade spar cap including at least one carbon element and at least one conductive layer, wherein the at least one carbon element and the at least one conductive layer are electrically connected, and at least one conductive profile to electrically connect the at least one conductive layer to the down conductor of the wind turbine blade, wherein the conductive profile is electrically connected to the at least one conductive layer and wherein the conductive profile is arranged at the wind turbine blade spar cap. Also provided is a wind turbine blade including a spar cap and a wind turbine including wind turbine blades.

A hub assembly or a rotor of a wind turbine includes a hub having openings to connect rotor blades thereto. The hub assembly includes a pitch bearing (3) and a pitch carrier positioned between the hub and the pitch bearing, the pitch carrier configured to support a pitch system for adjusting a blade pitch of the rotor blades. The pitch carrier includes a strip plate arranged between two opposite regions of a perimeter of the opening. A mounting structure attaches the strip plate to the hub.

The invention relates to a wind turbine that includes a rotor rotating about a horizontal axis of rotation substantially parallel to the direction of the wind, the rotor having a front face facing into the wind and substantially perpendicular to the axis of the wind, and a rear face situated toward a support of the rotor. At least two distinct families of blades are distributed on the rotor, each family of blades including at least two blades having a free end and a blade root end connected to said rotor. Each family of blades includes a catching blade guiding the wind toward a force blade having a surface arranged substantially perpendicular to the axis of the wind, the blade root ends of each family of blades are successively offset on an exterior surface of the rotor along the axis of rotation thereof.

Wind turbines including a hub rotatably mounted on a frame are disclosed, wherein the hub includes a bearing arranged around the frame, a main hub body extending in an axial direction from a front end to a rear end, and including a central opening for fitting the main hub body around the bearing. A bearing adapter is attached to the bearing, and the bearing adapter is in contact with and fixed to an axially facing surface of the main hub body. Also methods for mounting are disclosed.

Provided is a fluid film bearing, especially for a rotor hub in a wind turbine, including an inner part that supports a rotating outer part, wherein the inner part includes multiple radial pads distributed along the outer circumference of the inner part, each of the radial pads having at least one radial pad sliding surface, wherein the radial pad sliding surfaces support at least one outer part sliding surface of the outer part in the radial direction.

Provided is a fluid film bearing, for a rotor hub in a wind turbine, including a first and second part rotatably connected to each other, wherein the first part forms a first annular sliding surface that extends in the circumferential direction of the bearing along the first part, wherein the second part includes a support structure and first pads distributed along the circumference of the support structure, wherein a respective pad sliding surface of each of the first pads or of a first subgroup of the first pads supports the first annular sliding surface, wherein each first pad includes a mounting section that is mounted to a backside of the support structure, a contact section that is either forming the respective pad sliding surface or carrying a coating that forms the respective pad sliding surface and a connecting section that connects the contact section with the mounting section.

A joint for the oscillating connection of the rotary shaft of a wind turbine includes a box-shaped hub defining a longitudinal axis and having a pair of holes longitudinally opposite and aligned with each other, a shaft head adapted to be connected to the rotary shaft and having a pair of pivots designed to be inserted in the holes of the hub and having a cylindrical outer surface and a transverse end edge, and a pair of hinges placed at the level of the pair of holes to promote the oscillating connection of the pivots to the hub. Each hinge includes at least one plain bearing mounted on the outer surface of a corresponding pivot, damper elements operatively interacting with the edge of the hub, and a connection system adapted to mutually connect the at least one plain bearing with the damper elements so as to obtain a unitary assembly.

A fluidic structure configured to be mounted onto the hub of a fluidic turbine comprising a hub that rotates about a center axis, aligned to a main shaft that contributes torque to the main shaft of the turbine via the principle of lift and/or drag. The fluidic structure is mounted onto the hub of a primary turbine that contributes torque to the main shaft through increasing at least one of lift and drag, and the fluidic structure includes two or more curved fluidic elements that extend from an upstream tip that aligns to the center axis of rotation, to a downstream end at a radial position away from the center axis, and rotates about the center axis to contribute torque to the primary turbine; and a sensor positioned at or proximate to an upstream tip of the fluidic structure for determining environmental and turbine conditions and transmits information to a supervisory control and data acquisition system of the primary turbine.