Abstract: A system and method for operating a fuel-cell system, which is attached to at least one further component via a cooling and/or lubricating circuit. A water-based, oil-free coolant and lubricant is used, and a flushing procedure for the fuel cell is initiated when a contamination of the fuel cell by the water-based, oil-free coolant and lubricant is detected.

Abstract: A device for curing an electrically conductive adhesive arranged between a first component and a second component. The device includes at least one punch to both apply a compressive force onto the first component in the direction of the second component, and introduce a current into the adhesive via the components.

Abstract: An adhesive joint of a first hollow profile to a second hollow profile, and a method of producing such an adhesive joint. The second hollow profile is surrounded in an overlapping region by the first hollow profile, and a core connected to the first hollow profile is arranged in the overlapping region inside the first hollow profile and the second hollow profile. An expandable structural adhesive is arranged between the core and the inner face of the second hollow profile.

Abstract: A method for producing a punch-riveted connection between a first component and a second component having a flat cross-section, and a composite component that includes the first component and the second component.

Abstract: A load-bearing structure of a motor vehicle, having hollow profiles and junction elements to connect the hollow profiles. The hollow profiles may be fastened in receptacles of the junction elements, and the junction elements may have a plurality of of areal webs in a vehicle vertical direction, at least some of the areal webs forming a framework structure which assists the load path in the respective junction element.

Abstract: A method for producing a welded joint between a high-strength aluminum alloy with a copper proportion as a first metal and a second metal, in which the welded joint is produced by CMT welding.

Abstract: A shut-off valve to fill a tank with a gaseous medium. The shut-off valve includes a valve housing, a piston arranged in the valve housing for displacement in an axial direction and having an axially continuous bore, a first end piece having an outlet opening which is fluidically-connected to the axially continuous bore of the piston; and a second end piece having an inlet opening which is fluidically-connected to the axially continuous bore of the piston. A first end side of the piston and a first end side of the second end piece of the valve housing form a sealing seat upon contact therebetween.

Abstract: A method for producing a welded joint between a high-strength aluminium alloy with a copper proportion as a first metal and a second metal, in which the welded joint is produced by CMT welding.

Abstract: A system for driving an assembly arrangement for a motor vehicle, which assembly arrangement having at least one auxiliary assembly and an electric machine which is configured independently of a drive unit of the motor vehicle. It is possible for the electric machine to be operated both as a motor for driving the auxiliary assembly and as a generator for generating electric power. If required, it is possible for a separate engine which is configured as an internal combustion engine to be connected or fastened releasably via an interface to the assembly arrangement and to be coupled to the assembly arrangement for drive action, in order to supply the at least one auxiliary assembly and/or the electric machine with rotational drive moment.

Abstract: A load-bearing structure of a motor vehicle, having hollow profiles and junction elements to connect the hollow profiles. The hollow profiles may be fastened in receptacles of the junction elements, and the junction elements may have a plurality of of areal webs in a vehicle vertical direction, at least some of the areal webs forming a framework structure which assists the load path in the respective junction element.

Abstract: A joint connection of a first hollow profile to a second hollow profile, in which the second hollow profile is surrounded by the first hollow profile in an overlapping region. A core arranged within the first hollow profile and the second hollow profile in the overlapping region, and connected to the first hollow profile, the core having at least one boundary surface arranged parallel and adjacent to an inner side of the second hollow profile, and the core is connected to the inner side of the second hollow profile via an adhesive.

Abstract: A system and method for operating a fuel-cell system, which is attached to at least one further component via a cooling and/or lubricating circuit. A water-based, oil-free coolant and lubricant is used, and a flushing procedure for the fuel cell is initiated when a contamination of the fuel cell by the water-based, oil-free coolant and lubricant is detected.