Abstract: Wind turbine, having a tower and a nacelle mounted rotatably around a center axis of the tower on top of the tower, the tower having at least one tower lift for transportation and/or at least one tower climbing means, in particular a ladder, for climbing between the bottom of the tower and at least one tower platform inside the tower which allows access to an access arrangement for the nacelle, characterized in that the access arrangement includes an access platform suspended below a bed frame of the nacelle and rotatable with the nacelle and an access climbing means, in particular stairs, and/or an access lift leading from the access platform to an interior of the nacelle.

Abstract: A wind turbine nacelle platform structure including a beam assembly with at least two beams arranged to extend from a front region of a nacelle outward beyond the back end of the nacelle and a platform assembly mounted to the underside of the outward extending portion of the beam assembly. The disclosed further describes a wind turbine including a nacelle mounted on top of a tower, and such a nacelle platform structure secured to the nacelle.

Abstract: A wind turbine is provided, including a hub, a blade shaft which is connected to the hub, a rotor blade which is connected to the blade shaft, a fixed bearing arrangement which is arranged at a blade end) of the blade shaft, and a floating bearing arrangement which is arranged at a hub end of the blade shaft, wherein the bearing arrangements enable a rotational movement of the rotor blade relative to the blade shaft. One advantage of the wind turbine including the bearing arrangements is that a better distribution of the loads is achieved. Further, the serviceability is better compared to bearings with rolling elements.

Abstract: An apparatus for dampening of acoustic noise generated by air-cooling of at least one turbine component provided with the nacelle of a wind turbine is provided. Apparatus for dampening of acoustic noise generated by air-cooling of at least one wind turbine component provided with the nacelle of a wind turbine, comprising at least one acoustic dampener, with the acoustic dampener including at least one acoustic dampening channel structure having at least one acoustic dampening channel connected with at least one inlet opening of the acoustic dampening channel structure and at least one outlet opening of the acoustic dampening channel structure.

Abstract: A sealing arrangement includes an interface seal part arranged between a stationary element of a wind turbine and a rotary element of the wind turbine. The interface seal part is arranged to establish a seal between an interior of the stationary element and an exterior environment. Also a brake disc is realized to accommodate at least a portion of an interface seal part of such a sealing arrangement. Also described is a wind turbine which includes the sealing arrangement and the brake disc.

Abstract: An improved transformer arrangement of a wind turbine is provided. A wind turbine transformer arrangement comprises a transformer that is arranged in the wind turbine. The transformer comprises a housing. The transformer housing is filled with an oil. The transformer arrangement comprises at least one decompression chamber and the interior of the transformer housing is connected to the interior of the decompression chamber by a pressure release tube in a way that an increase in the pressure in the transformer housing due to a malfunction of the transformer is transferred through the pressure release tube into the decompression chamber.

Abstract: An airflow control arrangement for a direct-drive wind-turbine with a generator comprising a rotor and a stator, which airflow control arrangement comprises an outflow fan arranged to draw an exit airflow through an exit duct, which exit duct extends from an interior cavity of the stator to the exterior of the wind turbine. The invention further describes a direct-drive wind turbine comprising such an airflow control arrangement. The invention further describes a method of controlling an airflow in a direct-drive wind-turbine with a generator comprising a rotor and a stator is provided.

Abstract: A nacelle shell structure which is attachable to a main structure of a wind turbine is described. The nacelle shell structure is attachable to the main structure such that the nacelle shell structure is carried by the main structure at only three static points. Moreover, a nacelle shell structure is provided which is attachable to a main structure of a wind turbine. The nacelle shell structure includes interconnected shell sub-structures. Furthermore, a lock-labyrinth for positioning between a rotating part with a rotation axis and stationary part of a wind turbine is disclosed, which includes a shield structure and a support structure, the shield structure being located radially outward of the support structure and protruding the support structure in axial direction. The shield structure includes a nose protruding radially inward and being located at an axial position where the support structure forms a water-tight channel which opens towards the nose.

Abstract: A transformer chamber for a wind turbine is described. The transformer chamber includes a liquid-tight tank for receiving a liquid-filled, in particular oil-filled, transformer, a wind turbine structure component includes a component bedframe adapted for receiving such a transformer chamber and a wind turbine includes such a transformer chamber and such a wind turbine structure component. Furthermore, a method for assembling a wind turbine is described.

Abstract: A turning device to rotate the rotatable part of a wind turbine that comprises a stationary part and a rotatable part is described. The rotatable part is rotatable with respect to the stationary part of the wind turbine, and the stationary part is located within a nacelle, wherein the nacelle is at least partially enclosed by a housing. The turning device comprises a first lever and a second lever that is detachably attached to the rotatable part of the wind turbine. The first lever and the second lever reach from inside the housing of the nacelle through an opening to the outside of the nacelle, so that the drive is located outside of the housing of the nacelle, when the turning device is attached to the wind turbine.

Abstract: A wind turbine generator cooling system whereby the electrical generator includes a stator, a rotor, and an air gap between the stator and the rotor, and the rotor is rotatable in respect to the stator around an axis of rotation. The generator includes a cavity that is abutting on the stator in a radial direction, whereby a fan is connected to the cavity, so that the fan moves air through the cavity to cool the generator. A duct extends through the cavity in a mainly axial direction from a first side of the generator to a second side of the generator to allow the air that moves through the cavity, that cools the generator, and that collects at least partially at the first side of the generator, to flow from the first side of the generator to the second side of the generator to exit the generator.

Abstract: An apparatus for dampening of acoustic noise generated by air-cooling of at least one wind turbine component provided with the nacelle of a wind turbine is provided. Apparatus for dampening of acoustic noise generated by air-cooling of at least one wind turbine component provided with the nacelle of a wind turbine, comprising at least one acoustic dampening means, with the acoustic dampening means including at least one acoustic dampening channel structure having at least one acoustic dampening channel connected with at least one inlet opening of the acoustic dampening channel structure and at least one outlet opening of the acoustic dampening channel structure.

Abstract: A cooling arrangement is provided for a wind turbine. The wind turbine has a nacelle. The cooling arrangement includes a cooling device and a platform. The cooling device is arranged on top of the nacelle and which is configured to remove heat of the wind turbine to the ambient air. The platform is located on top of the nacelle and which is configured to be approached by a helicopter. The platform includes a barrier, which surrounds at least a part of the platform. The barrier includes at least a part of the cooling device.

Abstract: A service crane for a wind turbine is provided. The wind turbine includes a tower and a nacelle mounted to the top of the tower. The service crane is mounted to the nacelle and includes a boom, a hoist rope guided along the boom and a winch capable of reeling in and out the hoist rope for lifting or lowering a load. Furthermore, a nacelle is provided which includes a service crane mounted thereto.

Abstract: An improved transformer arrangement of a wind turbine is provided. A wind turbine transformer arrangement comprises a transformer that is arranged in the wind turbine. The transformer comprises a housing. The transformer housing is filled with an oil. The transformer arrangement comprises at least one decompression chamber and the interior of the transformer housing is connected to the interior of the decompression chamber by a pressure release tube in a way that an increase in the pressure in the transformer housing due to a malfunction of the transformer is transferred through the pressure release tube into the decompression chamber.

Abstract: A transformer chamber for a wind turbine is described. The transformer chamber includes a liquid-tight tank for receiving a liquid-filled, in particular oil-filled, transformer, a wind turbine structure component includes a component bedframe adapted for receiving such a transformer chamber and a wind turbine includes such a transformer chamber and such a wind turbine structure component. Furthermore, a method for assembling a wind turbine is described.

Abstract: A rotor hub of a wind turbine generator system is provided. A rotor hub of a wind turbine generator system comprises at least two connecting points for respectively receiving a rotor blade. The rotor hub is surrounded by a cladding, the cladding having at least two clearances respectively for a rotor blade. Between the two connecting points for receiving the rotor blades, the spacing between the rotor hub cladding and the rotor hub is set so as to create between the rotor hub cladding and the rotor hub a hollow space that is large enough to allow servicing work on the connecting point between the rotor blade and the rotor hub to be carried out by a worker from there.

Abstract: An arrangement with a nacelle and a radiator arrangement of a wind turbine is provided. The radiator arrangement includes a guiding assembly. The nacelle includes a guiding assembly, too. The guiding assembly of the radiator is positioned and constructed in a way that the guiding assembly interacts with the guiding assembly of the nacelle. Thus, the radiator arrangement is lifted and passed to a final position on top of the nacelle by the engaged guiding assemblies.

Abstract: The invention relates to a device for rotating a rotor of a wind turbine. Here, the wind turbine has the rotor, a tower, a nacelle with a machine frame, and a hub on which at least one rotor blade can be mounted. The rotor is arranged so as to be rotatable relative to the nacelle about an axis of rotation. The wind turbine furthermore has a locking device for blocking a rotational movement of the rotor about the axis of rotation. The device has at least one first displacement unit which is fastened to the machine frame. The first displacement unit also has a fastening device by means of which the first displacement unit can be detachably fastened to the rotor. Finally, the fastening device is actuable, in particular electrically and/or hydraulically actuable. The invention furthermore relates to a system for rotating one rotor of the wind turbine. The invention finally relates to a method for rotating the rotor of the wind turbine by means of the device or by means of the system.

Abstract: An airflow control arrangement for a direct-drive wind-turbine with a generator comprising a rotor and a stator, which airflow control arrangement comprises an outflow fan arranged to draw an exit airflow through an exit duct, which exit duct extends from an interior cavity of the stator to the exterior of the wind turbine. The invention further describes a direct-drive wind turbine comprising such an airflow control arrangement. The invention further describes a method of controlling an airflow in a direct-drive wind-turbine with a generator comprising a rotor and a stator is provided.