Disclosed is wind turbine blade and a spar beam for structurally connecting a first blade section and a second blade section of a wind turbine blade. The spar beam comprises a first fibre reinforced element extending parallel to a spar beam axis. The spar beam comprising a conductive beam sheath circumscribing at least a beam sheath angular distance of the spar beam about the spar beam axis and longitudinally extending from a fourth beam axis position to a fifth beam axis position. The first fibre reinforced element is positioned between the conductive beam sheath and the spar beam axis.

Disclosed is wind turbine blade and a spar beam for structurally connecting a first blade section and a second blade section of a wind turbine blade. The spar beam comprises a first fibre reinforced element extending parallel to a spar beam axis. The spar beam comprising a conductive beam sheath circumscribing at least a beam sheath angular distance of the spar beam about the spar beam axis and longitudinally extending from a fourth beam axis position to a fifth beam axis position. The first fibre reinforced element is positioned between the conductive beam sheath and the spar beam axis.

A method for producing a component of a sliding bearing includes a) providing a metal bolt with a cylindrical lateral surface and two end faces; b) coating the lateral surface of the bolt with a soldering flux or solder material; c) providing a metal sheet made of bronze and forming it into a cylindrical sleeve having a longitudinal slot, wherein a first side of the metal sheet forming an inside is coated with a solder material or a soldering flux before or after the forming process, either the lateral surface of the bolt or the inside of the sleeve having soldering flux; d) sliding the sleeve onto the lateral surface of the bolt; e) integrally bonding the lateral surface and the sleeve soldering; f) optionally closing the longitudinal slot by welding; and g) optionally machining a second side of the metal sheet facing away from the bolt.

The blowing device includes an impeller that is rotatable about a center axis and a motor that drives the impeller. The impeller includes a plurality of vanes arranged in a circumferential direction, a flange in which the plurality of vanes are provided at the outer circumferential edge in a radial-direction outside, and a plate-shaped first shielding unit located between the vanes adjacent to each other in the circumferential direction. The first shielding unit is connected to a rear edge surface on an opposite side to the rotation direction of the vane and an outside surface located on the radial-direction outside of the flange.

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.

A system for producing reinforcing cages for wind turbine tower segments, wherein a reinforcing cage has in each case substantially horizontally oriented ring segments and substantially vertically oriented stiffening elements. It is proposed that the system has a receiving area which is adapted so as to receive the preferably inner, substantially horizontally oriented ring segments of the reinforcing cage, a first handling robot for supplying and positioning the stiffening elements, and a second handling robot for connecting the ring elements to the stiffening elements.

The blowing device includes an impeller that is rotatable about a center axis and a motor that drives the impeller. The impeller includes a plurality of vanes arranged in a circumferential direction, a flange in which the plurality of vanes are provided at the outer circumferential edge in a radial-direction outside, and a plate-shaped first shielding unit located between the vanes adjacent to each other in the circumferential direction. The first shielding unit is connected to a rear edge surface on an opposite side to the rotation direction of the vane and an outside surface located on the radial-direction outside of the flange.

A method for producing a component of a sliding bearing includes a) providing a metal bolt with a cylindrical lateral surface and two end faces; b) coating the lateral surface of the bolt with a soldering flux or material; c) providing a metal sheet made of bronze and forming it into a cylindrical sleeve having a longitudinal slot, a first side of the metal sheet forming an inside is coated with a solder material or flux before or after the forming process, the lateral surface of the bolt or the inside of the sleeve having soldering flux; d) sliding the sleeve onto the lateral surface of the bolt; and e) bonding the lateral surface and sleeve soldering. A sliding bearing produced by the method includes the component in a bore of a planetary wheel, and a second side of the metal sheet and planetary wheel are in direct sliding contact.