The present invention relates to a method for producing a container which consists of a thermoplastic at least to some extent and comprises at least a first compartment element and at least a second compartment element joined to the first compartment element in a joining region by thermoplastic welding. The invention also relates to a plastic container which can be, and preferably is, produced according to said method.

A method of making a modular wind turbine blade is described. The modular blade comprises first and second blade modules connected together by a scarf joint between tapered spar caps of the respective blade modules. According to the method, first and second blade modules are laid up in the same mould assembly. A separating layer is arranged between the layups of the first and second module in a joint region of the mould. The separating layer has a thickness corresponding to a required bond thickness in the scarf joint when the modules are bonded together.

A positive crankcase ventilation system for an internal combustion engine routes blowby gases into the intake of the engine. Because the blowby gases have about 12% water vapor, during cold-weather operation, the water vapor may freeze in the PCV valve or in the port that couples the PCV duct with the intake manifold. In situations in which the PCV duct is pointing toward the direction of flow of the intake gases, a hood or cap is placed over the end of the tube according to the present disclosure. It can be as simple as a 90-degree elbow or multiple openings in the cap. A centerline of the openings is perpendicular or at an obtuse angle with respect to the direction of flow in the duct so that the intake gases do not directly access the openings and cause freezing in the openings (or ports).

When a cylinder portion of an innerliner is positioned inside a mouthpiece and when an upper mold and a lower mold are brought together, a projection portion is provided on an outer circumferential member of the lower mold that closes a gap between a section of an upper mold side positioning outer circumferential surface following on from an inner circumferential end of an outer abutting surface and a portion of the innerliner where an inner circumferential surface abuts. As a result, the portion of the innerliner that is thermally deformed is prevented from being displaced radially inward of the mouthpiece along a first annular surface.

An integrated heat shield which encloses a frame structure comprises a leading edge component, a left side component, a right side component, an optionally top component, an optional bottom component and an optional trailing edge subassembly, wherein the leading edge component and the left and right side components are directly, integrally co-cured on the frame structure while in a B-stage. The leading edge component and the left and right side components are shingle laminated to form ply angles to air flow. The leading edge component and the side components are scarf-jointed or step-jointed. The side components and trailing edge subassembly are also scarf jointed or step-jointed. The co-curing as well as the scarf or step joints makes the heat shield an integrated assembly. A method of manufacturing the integrated heat shield is further introduced.

Embodiments are directed to systems and methods for manufacturing composite assemblies comprising laying up composite plies on molds for two or more uncured components, joining the molds for the two or more uncured components to form a tubular body, and curing the joined components simultaneously to create a single composite assembly. The single composite assembly may form a spar for an aerodynamic component. The method may further comprise forming at least one axial edge having a sloped shape on the uncured components and mating the sloped axial edges together when joining the uncured components. The molds for the two or more uncured components may comprise female tools or both female tools and male tools. The two or more cured composite assemblies may comprise one or more of carbon and fiberglass composite materials.

A wind turbine blade includes a protective cover attached along the blade by a layer of adhesive. The adhesive is a general purpose adhesive, and the adhesive forms a joint or sealing between an outer edge of the cover section of the blade and the surface of the blade so that the outer edge is covered by the adhesive and so that the joint forms an oblique surface from the outer edge to the surface of the blade. The joint has a first height at the outer edge and a second height at the position where it ends at the surface of the blade. The second height is smaller than the first height and smaller than 0.2 millimetres, and the joint is integrally formed with the layer of adhesive.

A system for manufacturing a rotor blade comprises a first tooling, positioned at a factory location and configured to assemble a first blade module, comprising a first-module skin and a first-module spar, each comprising a first thermoplastic polymer and a first reinforcement material. The system also comprises a second tooling, configured to assemble a second blade module, comprising a second-module skin and a second-module spar, each comprising a second thermoplastic polymer and a second reinforcement material. The system further comprises a first support, positioned at a field location and configured to receive the first blade module, and a second support, positioned at the field location and configured to receive the second blade module. The system also comprises a spar welding assembly, positioned at the field location and configured to join the first-module spar with the second-module spar.

A positioning jig (25) and a method for manufacturing a wind turbine blade comprising moulding a first and a second blade shell portion in respective first and second mould tools; positioning a shear web (15) in a spanwise direction within a first shell portion (20) in a said first mould tool (7); anchoring said shear web in position in said first shell portion; and closing said second shell portion (21) over said first shell portion to thereby generate a wind turbine blade shell defining a chordwise extent between a in trailing edge and a leading edge thereof, and a spanwise extent between a root region and a tip thereof and wherein said shear web, bordered by a first (24) and a second longitudinal edge, extends in a thickness direction of said blade; said method further comprising: providing a positioning jig; and securing said positioning jig to said shear web, prior to its introduction into said first shell portion and guiding said shear web into its predetermined standing position in said first shell portion, with its first longitudinal edge adjacent said first shell portion, by engaging a reference surface (33) of said positioning jig with a locating surface (12) at said first mould tool thereby to bring said positioning jig into its guide position with said shear web in its predetermined standing position; and removing said positioning jig from said first mould tool prior to closing said second shell portion over said first shell portion. A shear web, especially an upper edge thereof, may be additionally secured to the blade shell using ligaments (30) prior to removal of the positioning jig.

A stabilizer bushing installed on a stabilizer bar is made of two divided parts of rubber or the like to prevent or decrease generation of a gap in a bonding surface. The stabilizer bushing installed on an outer periphery of the stabilizer bar by adhesion includes divided rubber bushings of an upper rubber bushing and a lower rubber bushing. Before adhesion, both end portions of the upper and lower rubber bushings, respectively, in a circumferential direction are tapered so that an overlapping amount between the upper and lower rubber bushings increases toward the outer periphery side of the bushings. After adhesion, a bonding surface is bonded by pressure.