Described is a tool and apparatus for positioning a blade for a wind turbine the wind turbine including a tower and a rotatable hub on the tower. The tool is mounted on a side of the tower so that the blade is supported on the tower in an initial configuration. The tool includes a first part arranged to be angularly movable relative to a second part for tilting the blade with respect to the tower to position the blade in a position that can allow the blade to be connected to the hub.

An assembly includes a first and a second section, where each section includes a longitudinal axis, and a fixation configured to fix the first and the second sections. At least one of the first and the second sections includes a body that is configured to be engaged by the fixation. The fixation includes an abutment and a displaceable actuator, and the actuator is radially displaceable.

A fluid turbine comprises a rotor rotatable in use about an axis transverse to the direction of fluid flow, the rotor having a first part carrying a plurality of arcuate blades that may be arranged selectably in compact straight shapes or in arcuate shapes and a second part journalled in a base structure by two or more bearings.

A fluid turbine comprises a rotor rotatable in use about an axis transverse to the direction of fluid flow, the rotor having a first part carrying a plurality of arcuate blades that may be arranged selectably in compact straight shapes or in arcuate shapes and a second part journalled in a base structure by two or more bearings.

A phase adjustment system 100 for a geared compressor 1 includes a phase adjustment jig 50 that is to be detachably provided in the geared compressor 1. The geared compressor 1 includes a drive gear 4 fixed to a drive shaft and having a largest outer diameter among a plurality of gears; a driven gear having a smaller diameter than a diameter of the drive gear 4 and meshing with the drive gear 4; and a gear casing accommodating the drive gear 4 and the driven gear. The phase adjustment jig 50 includes a fifth jig gear 66 that meshes with the drive gear 4 in a state where a frame 51 is fixed to the gear casing; and a manually rotatable handle 70 that is configured to rotate the fifth jig gear 66.

Provided is a wind turbine including: a tower extending axially along a longitudinal axis, a nacelle and a rotor attached to an upper end of the tower, a gyroscope, a controller device for operating the gyroscope for stabilizing a movement and/or an oscillation of the wind turbine with respect to a spatial reference system.

The present invention relates to an assembly of a first component (1) and a second component (2) of a wind turbine, the assembly comprises, a paired eccentric cam adjuster (10) adapted for a connection of the first component and the second component of a wind turbine, said components (1,2) each having at least one hole (3,4), the adjuster comprising, a first and second eccentric cam adjuster (7,8), both comprising, a tube (101) with an outer surface and an inner bore (103), with a first central longitudinal axis (321) of the outer surface having an offset (320) from a second central longitudinal axis (322) of the inner bore and a flange (102) arranged at one end of the tube, said cam adjusters (7,8) arranged to be inserted into said holes, and a bolt (5) and a nut (6) arranged to be inserted in the inner bores.

A rotor arresting device, to a wind turbine and to a method for arresting and/or rotating a rotor. The rotor arresting device comprises a rotor, a rotational assembly, and a static assembly fixed in position, comprising a toothed disk, which can be arranged on the rotational assembly, having a plurality of arresting recesses arranged along a circumference, wherein two adjacent arresting recesses form a tooth, a first arresting module having at least one first arresting element, a second arresting module having at least one second arresting element, wherein the first and the second arresting module can be arranged on the static assembly, wherein the first and the second arresting element are arranged and designed to engage in arresting recesses of the toothed disk, wherein the spacing of the first arresting element from the second arresting element in the circumferential direction of the toothed disk is a non-integral multiple of a tooth tip spacing of the toothed disk.

An assembly includes a first and a second section, where each section includes a longitudinal axis, and a fixation configured to fix the first and the second sections. At least one of the first and the second sections includes a body that is configured to be engaged by the fixation. The fixation includes an abutment and a displaceable actuator, and the actuator is radially displaceable.

A method for manufacturing a wind turbine blade, the method including the steps: a) positioning an outboard blade section at a predefined end position, the outboard blade section including an outboard end portion, b) positioning an inboard blade section adjacent to the outboard blade section, the inboard blade section including an inboard end portion, c) determining a deviation of a current position of the inboard end portion of the inboard blade section with respect to the outboard end portion the outboard blade section from a nominal position of the inboard end portion with respect to the outboard end portion, and d) moving the inboard blade section to the outboard blade section to compensate for the determined deviation. The complexity of the alignment procedure when aligning lengthwise blade sections are reduced and the accuracy of the alignment increased.