General Electric Company

Rainer Arelt

Enno Eyb

Thomas Siebers

Ronny Stam

Andreas Starke

Florian Doorenspleet

The method for making a continuous laminate, in particular suitable as a spar cap or another part of a wind energy turbine rotor blade comprises the steps of providing a plurality of parallel fibers, embedding the fibers in a curable matrix material, curing the matrix material so as to obtain a fiber reinforced laminate having upper and lower major surfaces, and forming channels into at least one of the upper and lower major surfaces of the laminate wherein the channels on the upper and/or lower major surfaces are angled with respect to the direction of the fibers.

Method for making a continuous laminate, in particular suitable as a spar cap or another part of a wind energy turbine rotor blade

The present patent application concerns an apparatus for cleaning an outer surface of a rotor blade of a wind turbine, the apparatus comprising a first frame and a cleaning device, the cleaning device being adapted to conform to the outer surface and connected to the first frame, wherein the apparatus is adapted to be slidably positioned on the outer surface of the rotor blade, to slide along, and to be pressed onto the outer surface. Further, it concerns an apparatus for cleaning a leading edge of a rotor blade of a wind turbine, the apparatus comprising a first frame and a cleaning device, the cleaning device being adapted to conform to the leading edge and being connected to the first frame, wherein the apparatus is adapted to be slidably positioned on the leading edge of the rotor blade, to slide along and to be pressed onto the leading edge during standstill of a wind rotor comprising the rotor blade. Finally, it concerns a rotor blade of a wind turbine comprising an apparatus for cleaning a leading edge of the rotor blade, wherein the apparatus is mounted on said rotor blade, the apparatus comprising a first frame and a cleaning device, the cleaning device being adapted to conform to the leading edge and being attached to the first frame, wherein the apparatus is adapted to be slidably positioned on the leading edge of the rotor blade, to slide along and to be pressed onto the leading edge during rotation of a wind rotor comprising the rotor blade.

Wiper for wind turbine blades

A rotor blade for use in a wind energy system is disclosed. The rotor blade includes a rotor blade body comprising a tip; a down conductor extending along the rotor blade body; a conductive part including a conductive part body attached to the rotor blade body and connected to the down conductor, and an extension extending outward from the conductive part body and protruding out of the tip; a lightning receptor having a cavity for slidably receiving the extension; and a fastener removably fastening the lightning receptor to the extension.

Rotor blade with a lightning protection unit, wind energy system having the same and a method for constructing a rotor blade

A rotor blade for a wind turbine is provided, wherein the rotor blade has radial bores in a wall of a blade root portion, the radial bores being staggered in a longitudinal direction of the rotor blade, and longitudinal bores in the wall of the blade root portion, wherein each of the longitudinal bores extends from a blade flange to a corresponding radial bore.

Rotor blade for a wind turbine

A rotor blade for a wind turbine includes a flange section configured to connect the rotor blade to a rotor hub. The flange section is formed from a hybrid material including glass fibers and carbon fibers embedded in a matrix material. The carbon fibers are oriented substantially parallel to a longitudinal axis of the rotor blade.

Wind turbine rotor blade

The invention relates to a process for producing a rotor blade for a wind power system, wherein at least two rotor blade elements are arranged one behind the other in a longitudinal direction of the rotor blade and are glued together via at least one, preferably at least two connecting elements bridging a partition line between the rotor blade elements, wherein at least one connecting element is aligned with said rotor blade elements, wherein a hollow space is formed between an outer delimitation surface of at least one of the rotor blade elements and at least one fixing segment of the inner delimitation surface of said connecting element, and subsequently the hollow space is flooded with an adhesive (resin).

Growing community of inventors

Salzbergen, Germany

Rainer Arelt