Lm Glasfiber A/s

Fiberline A/s

Lm Wind Power International Technology Ii Aps

Lars Tilsted Lilleheden

Lars Bo Hansen

Morten Dahl

Torben Krogsdal Jacobsen

Henrik Thorning

Raymond Johnsen

A method of producing an assembly for use in a structural element of a fiber-reinforced material includes providing a core element including an inner core and a circumferential cover, the core element having an end part; producing a subassembly by receiving and centering the end part of the core element into a conforming end recess of a bolt fixture; fixing the bolt fixture to the end part of the core element in the subassembly by circumferentially covering the subassembly with a casing formed of cured fiber-reinforced resin; and machining the subassembly circumferentially covered within the casing.

Method of producing an assembly for use in a fibre reinforced structural element

The present invention concerns a method of producing a lightning diverter for conducting a lightning-induced electrical current, which is to be placed on structures such as wings on wind turbines, aircraft components, radomes and the like with the purpose of lightning protection. The method comprises the steps of making a plurality of holes in a plate of an electrically conductive material, filling said holes at least partly with one or more electrically non-conductive materials, and then finally dividing the plate&#x2014;preferably into strips. The lightning diverter obtained hereby consists of a layer of electrically non-conductive material with a plurality of isolated segments of electrically conductive material. The invention further relates to a diverter strip with isolated segments of concave shapes being advantageous because of the good connection between the segments and the non-conductive material.

Lightning diverter for conducting a lightning-induced electrical current and a method of producing the same

A method of manufacturing a fiber-reinforced blade for a wind energy plant is presented, which blade is configured with at least a blade shell and means for conducting to a lightning current to an earth connection. Novel aspects of the method comprise that the blade is provided with segmented conductor means that are configured for conducting a lightning current outside the blade to the means for conducting to earth; and wherein the conductor means are distributed and secured at the external surface of the blade shell in such a manner that the conductor means are essentially flush with the external surface of the blade shell. When the segmented conductor means are distributed and attached at the external surface of the blade shell, the lightning current will not have to be conducted through the conductor means, but rather they are conducted in a ionised passage in the air above the conductor means.

Blade for a wind energy plant comprising segmented conductor means for conducting lightning

The invention relates to a method of manufacturing a fiber mat adapted for use in the manufacture of a fiber-reinforced device, said fiber mat comprising at least two essentially longitudinally extending and parallel batches of fibers. Novel aspects of the method according to the invention involves that the method comprises that the batches are joined by holder means that span above or below each batch, whereby the holder means impart an influence to each batch which is essentially symmetrical about an axis situated longitudinally between the batches. A symmetrical influence about an axis longitudinally between the batches accomplishes that influence from one side is matched by influence from an opposite side. Hereby it is prevented that the batch will undulate. Simultaneously the batches are clearly separated, whereby resin is more easily conducted longitudinally of the batches.

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Kolding, Denmark

Lars Tilsted Lilleheden