Abstract: A honeycomb body includes at least a housing and a honeycomb structure having a plurality of channels. The honeycomb structure is formed of at least one at least partially structured metallic layer that forms connecting points fixing the honeycomb structure. At most 20% of inner contact points in a cross section of the honeycomb structure form a connection point, and the connection points are disposed at a distance from each other in such a way that respective connection-free regions of the same size surround each of the connection points. An exhaust-gas purification unit and a motor vehicle are also provided.

Abstract: A honeycomb body is formed of smooth and structured metallic foils. The smooth foils have different average roughnesses or different oxide layer thicknesses than the textured foils. A method for producing the honeycomb body and a motor vehicle having the honeycomb body, are also provided.

Abstract: A honeycomb body includes at least one housing and metal foils forming a channel structure. The channel structure is fastened to the housing by a multiplicity of linear brazed connections. A production method for providing the linear brazed connections between the channel structure and the housing and an exhaust gas treatment component having the honeycomb body in an exhaust system of a motor vehicle, are also provided.

Abstract: A honeycomb body includes at least one housing and a honeycomb structure with a plurality of channels. The honeycomb structure is formed from at least one at least partially structured metallic layer which forms connecting points fixing the honeycomb structure. A cross section of the honeycomb structure has radial zones with differing densities of the connecting points. In at least one zone, at least 1% and at most 20% of inner contact points in the cross section also form a connecting point. An exhaust-gas purification unit and a motor vehicle are also provided.

Abstract: A honeycomb body is formed of at least one at least partially structured sheet-metal foil and has a plurality of channels. The sheet-metal foil has a course or profile direction and includes top-side connecting points and bottom-side connecting points to itself or to at least one additional smooth sheet-metal foil or structured sheet-metal foil. At least the top-side connecting points or bottom-side connecting points form a curved connection line and expansion joints between the respective connection points of the curved connection line. An exhaust-gas treatment unit and a motor vehicle are also provided.

Abstract: A honeycomb body includes at least one housing and a honeycomb structure for a waste-gas purification system having at least one sheet metal material. The sheet metal material has elevations in at least one section and an edge contour enclosing the elevations. A portion of the area of the elevations in the at least one section is at least 80%. A particle separator, a catalyst carrier body and a motor vehicle having the honeycomb body are also provided.

Abstract: A device and a method for applying brazing material to an at least partially structured metal foil include a) providing at least one flat metal foil, b) shaping the at least one metal foil to produce a structure, and c) applying brazing material to the at least one metal foil. Steps b) and c) are carried out discontinuously and at least partially together. The device and method are preferably used in the production of metallic honeycomb bodies for the treatment of exhaust gases in vehicles.

Abstract: A catalyst carrier body, which is suitable for use in an exhaust system close to an internal combustion engine, has a multiplicity of passages through which a gas stream can flow and which extend next to one another between an inlet side and an outlet side. In order to allow efficient and permanent installation of an exhaust-gas treatment device, which can be subjected to high thermal and dynamic loads, the catalyst carrier body has at least one metallic sheet, which at a temperature of 900° C. at least has a proof stress Rp0.2 of 50 N/mm2. A catalytic converter, which is likewise suitable for this purpose, a corresponding exhaust system and a corresponding vehicle, are also provided.

Abstract: A honeycomb body includes a housing and a plurality of layers with a curved profile and a predetermined length. Each layer includes at least one at least partially structured metal foil forming a multiplicity of passages with a passage cross section. A majority of the layers have different lengths than one another. A process for producing a honeycomb body, a process for treating exhaust gas, and an exhaust gas assembly, are also provided.

Abstract: A foil for producing a metal honeycomb or catalyst carrier body, has an average surface roughness of more than 0.3 ?m (micrometers) on both surfaces in at least one measurement direction. Preferably, the foil is rolled and has an average surface roughness of more than 0.3 or 0.5 ?m, especially approximately 0.6 ?m, in the rolling direction and/or transverse thereto. The foil can have an oxide coating with a thickness between 60 and 80 or between 70 and 75 nm (nanometers) on both surfaces. Despite the roughness, an even thickness of the oxide coating with a tolerance of less than 10% or 5% is advantageous on both surfaces. The foil allows production of durable honeycomb bodies, especially for exhaust systems of internal combustion engines, requiring an exactly defined distribution and quality of compounds in the interior thereof. A honeycomb body and method of production using a foil, are also provided.

Abstract: A method for removing soot particles from an exhaust gas of an internal combustion engine, especially of a diesel engine, includes feeding the exhaust gas through a collecting element through which the exhaust gas can pass freely but which is provided with a plurality of deflections and/or zones of swirl and calming or stabilization. At least a proportion of the particles are held or swirled around in the collecting element until there is a sufficient probability of reaction with nitrogen dioxide and a majority of the collected particles have been removed. A collecting element has flow channels through which the exhaust gas can pass freely. However, the flow channels are configured in such a way as to form deflections or zones of swirl and calming or stabilization. A system having the collecting element is also provided.

Abstract: A method for removing soot particles from an exhaust gas of an internal combustion engine, especially of a diesel engine, includes feeding the exhaust gas through a collecting element through which the exhaust gas can pass freely but which is provided with a plurality of deflections and/or zones of swirl and calming or stabilization. At least a proportion of the particles are held or swirled around in the collecting element until there is a sufficient probability of reaction with nitrogen dioxide and a majority of the collected particles have been removed. A collecting element has flow channels through which the exhaust gas can pass freely. However, the flow channels are configured in such a way as to form deflections or zones of swirl and calming or stabilization. A system having the collecting element is also provided.

Abstract: A honeycomb body, in particular a catalyst carrier body, includes metallic foil of high-temperature corrosion-resistant steel with connecting points and an oxide layer with a thickness of 60 to 80 or 70 to 75 nm on each surface. The foil is composed of steel with chromium and aluminum components, particularly 1 to 5% aluminum. The oxide layer is substantially aluminum oxide or ?-aluminum oxide with a uniform thickness having a tolerance of less than 10% or less than 5% on all surfaces. The oxide layer may be on a rolled foil having a mean surface roughness of greater than 0.3 or 0.5 ?m or approximately 0.6 ?m in rolling direction and/or transversely thereto. The honeycomb body is durable under high loads and has defined connecting points. A foil having an oxide coat and a method for producing an oxide coat on a metallic foil are also provided.

Abstract: A method for regenerating at least one particle agglomerator of an exhaust gas after-treatment system of an internal combustion engine of a motor vehicle, includes operating the internal combustion engine in at least one operating phase in such a way that a sufficient portion of nitrogen dioxides is directly produced in the exhaust gas in order to ensure a conversion of particles containing carbon in the at least one particle agglomerator. A motor vehicle suitable for carrying out the method is also provided.

Abstract: A self-supporting mount for exhaust gas purification modules includes at least two retaining plates. The exhaust gas purification modules each have a cross sectional shape and at least one bead projecting beyond the main cross sectional shape and having a thickness. At least two of the exhaust gas purification modules pass at least partially through at least one of the retaining plates and are each fixed between the at least two retaining plates through the use of the bead. An exhaust system for a motor vehicle having at least one self-supporting mount, is also provided.

Abstract: A device includes an electrically heatable honeycomb body, particularly for treating an exhaust gas flow of a mobile internal combustion machine. The device includes sheet metal foils forming channels and being in electrical contact with a housing. The housing has a terminal for connection to a voltage source, a plurality of contact points disposed remotely from the terminal for contacting the sheet metal foils and a respective contact conductor between the terminal and each contact point. The contact conductors have the same electrical resistance. A motor vehicle having at least one such device is also provided.

Abstract: A metal sheet having a microstructure, a carrier body having a plurality of sheets, and an exhaust system having the carrier body, are distinguished by a particularly long useful life in an automobile. Moreover, it is possible to bring about flow profiles coordinated exactly with the respective fields of use, so that a particularly efficient or extremely adaptable carrier body for purifying the exhaust gas of automobiles is provided.

Abstract: A method for operating a motor vehicle which has a drive and an exhaust system with at least one controllable heating device to be placed in contact with exhaust gas, includes at least the following steps: (a) detecting at least one operating parameter of the exhaust system, (b) determining at least one influential variable of the heating device, (c) comparing the at least one influential variable with a target parameter of the exhaust system, and (d) activating the heating device in such a way that the operating parameter reaches the target parameter. A motor vehicle having a drive and an exhaust system is also provided.

Abstract: A configuration contains a first honeycomb body, which is formed by at least one convoluted or wound stack and has a plurality of channels allowing a flow, wherein a first end of the stack is connected to an electric connection and a second end is connected to an electric ground. The stack contains a plurality of sheet metal foils in electric contact with each other, the foils being structured at least in some regions. At the same time, the honeycomb body has support pins for connecting to a second honeycomb body, the pins have a distance of at least 25 mm from each other along the course of the stack at least outside an inner region. A method introduces support pins into the honeycomb body and a device receives a honeycomb body and/or for positioning support pins. The device enables the installation of the support pins in the honeycomb body.

Abstract: An electrically heatable honeycomb body is formed with at least one wound stack of sheet-metal foils. A first end of the stack is connected to an electrical terminal and a second end is connected to an electrical ground. The stack has a plurality of sheet-metal foils which are in electrical contact with one another and which are at least partially structured and determine, in the direction of the structures, a height of the stack. The stack has at least one curvature with a small radius of curvature and a relatively large radius of curvature. A curvature section including the at least one curvature has at least one zone with increased electrical resistance starting from the small radius of curvature and extending over part of the height of the stack. A motor vehicle having at least one honeycomb body, is also provided.