A thermal barrier attachment seal for a gas turbine engine component includes a spine having a first surface and a second surface facing opposite the first surface. A first layer of insulation is provided on the first surface. A second layer of insulation is provided on the second surface to provide a thermal barrier seal between a first gas turbine engine component and a second gas turbine engine component. A fan section for a gas turbine engine is also disclosed.

A cleaning apparatus suitable for cleaning a horizontally curved metal tower can include a fluid directing channel configured to receive pressurized fluid from a fluid source; a slider or wheel positioned to contact and vertically traverse the horizontally curved metal tower; and a standoff which separates the fluid directing channel spatially from the slider or wheel. The apparatus can also include sprayer nozzles fluidly coupled to the fluid directing channel which can be directed toward or beyond the slider or wheel. A magnet can also be positioned on the apparatus that is configured to interact magnetically to pull the cleaning apparatus toward the horizontally curved metal tower, but the magnet is not close enough to touch the horizontally curved metal tower when the slider or wheel is in contact with the horizontally curved metal tower.

A method of making a wind turbine blade component incorporating a lightning protection system, the method comprising: providing a mould surface; arranging a forming element on the mould surface; providing an electrically conductive layer; reinforcing the electrically conductive layer in a predetermined region to create a reinforced zone; arranging the electrically conductive layer over the forming element so that the reinforced zone is superimposed on the forming element; arranging one or more structural components on the electrically conductive layer; consolidating the structural components under vacuum to form a blade shell having an integrated electrically conductive layer adjacent an outer surface of the shell; removing at least part of the forming element from the blade shell to define a recess in the outer surface of the shell so as to expose the reinforced zone of the electrically conductive layer; electrically connecting the electrically conductive layer at the reinforced zones to a respective electrical component located adjacent an inner surface of the blade shell. The invention also extends to a preformed component for use in fabricating a wind turbine blade.

A bearing arrangement for a wind turbine is provided, including a bed frame, a support structure mounted to the bed frame, a shaft, bearings supporting the shaft rotatably around a shaft axis, and bearing housings supporting one of the bearings respectively, wherein the bearing housings are mounted on opposite faces of the support structure, the faces facing in the axial direction with respect to the shaft axis. The bearing arrangement provides high bending stiffness. At the same time, the bearings in the bearings housings are easily accessible for maintenance, for example.

The present disclosure is directed to a rotor blade assembly for a wind turbine having a first rotor blade segment with a first spar cap segment and a second rotor blade segment with a second spar cap segment. The first and second spar cap segments are arranged together at an interface and are constructed of a composite material. Further, the rotor blade assembly includes a joint assembly at the interface of the first and second spar cap segments. The joint assembly is constructed of a first metal joint secured to the first spar cap segment and a second metal joint secured to second spar cap segment. Moreover, the first and second metal joints are welded together at a weld area.

There is provided a wind turbine apparatus, comprising a wind turbine structure and an enclosure structure, which is easily transportable and capable of being mounted on moving vehicles or buildings during operation of the wind turbine apparatus. The wind turbine structure generates electric power from kinetic energy of natural wind and comprises of a plurality of vertical blades arranged in a circular manner to form a plurality of rotatable and integrally superimposed cylindrical compartments. The enclosure structure provides support and rigidity to the wind turbine structure and comprises of a plate at one end of the housing, a closed hollow base portion at an other end of the enclosure and a plurality of connecting columns to mechanically hold together the plate and the closed hollow base portion. The wind turbine structure is placed within the enclosure structure and a connecting shaft connects the wind turbine structure to the enclosure structure.

A compressor wheel that can be employed in devices such as turbochargers. The compressor wheel includes an axially extending hub having an inlet end, a shaft bore extending from the inlet end and an arcuate outer surface opposed to the shaft bore. The axially extending hub is composed of a metal and has a porous region located proximate to the arcuate outer surface of the axially extending hub. The compressor wheel also includes a blade array disposed on the arcuate outer surface of the axially extending hub. The blade array has an outer surface and an inner region. The blade array comprises a plurality of circumferentially-spaced, radially and axially extending blades disposed thereon and is composed, at least in part of a polymeric material. Polymeric material located in the inner region of the blade array extends into the porous region defined in the axially extending hub.

Methods and apparatus for a modular hydrokinetic turbine. An apparatus includes modular vertically floating units tethered to shore with a generator residing above water and vertically oriented blades submerged in water to convert a latent kinetic energy of a moving waterway into electricity.

A wind turbine blade for a wind turbine is a shell structure of a fibre-reinforced composite and comprises a root region and an airfoil region. The root region has ring-shaped cross section and comprises a plurality of elongated bushings 7 with an inner thread 22 and embedded interspaced in the fibre-reinforced polymer so as to substantially follow the circumference of the root region and allow access from the outside to the inner threads. Each fastening member 7 is provided with a notch 60 in the periphery 11 thereof. A rod-shaped locking element 61 passes through the notch 60 in engagement therewith. The locking element 61 is fixedly and tightly fitting arranged in a through-going circular bore 65 extending through the wall of the root region.

The system for converting energy from flowing media with a rotor, in particular with an H-Darrieus rotor, comprising rotor blades made of a fibre-reinforced plastic profile manufactured in an injection moulding process, whereby the fibres of the plastic profile are carbon fibres and/or where the plastic is a thermoplastic material. The rotor blades of H-Darrieus rotor are connected to a shaft by means of radial struts and/or by means of diagonal struts and rotor blade connection components are arranged between the respective rotor blade and the radial struts and/or diagonal struts as a connection. Das rotor blade connection component comprises an enclosing element around at least part of the profile of the rotor blade and a corresponding connection element for the respective radial strut and/or diagonal strut.