摘要:
A process for producing a fleece having metallic wire filaments, includes at least the following steps: a) forming a layer including wire filaments; b) producing first cohesive connections between at least some of the metallic wire filaments in a first joining process; and c) producing second cohesive connections between metallic wire filaments in a second joining process. A process for producing a honeycomb body having at least one fleece, a fleece, a honeycomb body, an apparatus and a vehicle using fleeces in the treatment of exhaust gas from motor vehicles, are also provided.
摘要:
A housing for an exhaust gas purification component encloses an interior space in which at least one receptacle is formed by the housing at the outside. An exhaust system includes at least one first exhaust line section and the housing having the exhaust gas purification component. The first exhaust line section is in engagement with the receptacle, and the first exhaust line section and the receptacle are connected to one another in a materially integral manner. A motor vehicle having the exhaust system is also provided.
摘要:
A protective element for a measuring probe, in particular a measuring probe for use in the exhaust system of a motor vehicle, includes at least one temporarily water-binding layer which binds water chemically and/or physically in a first operating state and releases the bound water in a second operating state. A corresponding measuring probe, honeycomb body and motor vehicle are also provided.
摘要:
A method for gluing and brazing a honeycomb structure includes at least one partially structured foil with a pitch and a wave height. The method includes the steps of choosing a mean brazing material diameter of a powder brazing material, said diameter being 15% smaller than the height of the wave; determining a minimum thickness of the glue strip according to equation; gluing at least partially structured foil within the width of the glue strip on at least part of the wave crests formed by the undulation; brazing the honeycomb structure. The invention also relates to a corresponding honeycomb structure that ensures satisfactory joint connections even when said structure is used in the exhaust systems of automobiles.
摘要:
A particle filter includes a casing and at least one body disposed in the casing and having at least one metallic fiber layer. The at least one metallic fiber layer forms a multiplicity of spatially separate flow paths through the body. The flow paths each have a flow restrictor at least at one location. The at least one metallic fiber layer has an area-related thermal capacity in a range of from 400-1200 Joule per Kelvin and square meter [J/Km2]. The particle filter therefore has an especially high particle storage capacity and regeneration capacity.
摘要翻译:颗粒过滤器包括壳体和设置在壳体中并具有至少一个金属纤维层的至少一个主体。 所述至少一个金属纤维层形成通过所述主体的多个空间上分离的流动路径。 每个流动路径至少在一个位置具有限流器。 所述至少一个金属纤维层具有400-1200焦耳/开尔文和平方米[J / Km <2>]范围内的面积相关热容量。 因此,颗粒过滤器具有特别高的颗粒储存能力和再生能力。
摘要:
A method for producing a metallic honeycomb body includes providing a plurality of smooth sheet-metal foils and at least partly structured sheet-metal foils and placing the foils in a housing. The smooth sheet-metal foils have a first length while the structured sheet-metal foils have a second length. A difference between the first length and the second length is selected in accordance with a prestress.
摘要:
A honeycomb body assembly includes a honeycomb body with channels through which a fluid can flow. The channels extend between two end faces. At least one sensor extends at least partly into the honeycomb body. A first partial volume of the honeycomb body is defined between a first end face and the at least one first sensor. The honeycomb body has a lower capacity for oxygen in the first partial volume than in at least one further partial volume. An exhaust system with a space-saving configuration of such a honeycomb body is also disclosed.
摘要:
A process for producing a structure in a smooth sheet-metal strip includes multiple process steps. In a first step, a first section of a smooth sheet-metal strip is fed to a first tool and a second section of the sheet-metal strip is fed to a second tool in a direction of advance. Then the sheet-metal strip is stopped. A sheet-metal machining of the first section of the sheet-metal strip is carried out using the first tool. A sheet-metal machining of the second section of the sheet-metal strip is carried out using the second tool, with the first feeding step being carried out simultaneously. An apparatus is provided for producing a sheet-metal strip of such a complex structure, which produces the structure with a very high degree of accuracy even when the materials properties differ.
摘要:
A metallic honeycomb body has an axial length, a partial volume covering at least 55% of the length, a radial dimension of at least 20 mm and inflow and outflow end sides. Sheet-metal layers are structured permitting a fluid, particularly internal combustion engine exhaust gas, to flow through the body between the end sides. The layers each have a surface area, partial regions and end side edges. Each of the layers has a multiplicity of holes formed at least in the partial regions in the partial volume. The holes have a hole surface area of between 1 and 120 mm2. The layer surface area in the partial volume is reduced by 10 to 80%, preferably 35 to 60%, by the holes compared to a layer without holes. The partial volume is spaced from each of the end sides, preventing the holes from touching and cutting through the end side edges. The partial volume amounts, in particular, to more than 60%, preferably more than 90%, of the total honeycomb body volume. A highly effective coating for treatment of a fluid for most known forms of honeycomb bodies yet with a reduced use of coating material while still being able to specifically match properties of a honeycomb body in terms of mechanical stability, heat capacity, thermal conductivity and the like to the requirements of individual applications, is provided.
摘要:
An exhaust gas filter for cleaning an exhaust gas of an internal combustion engine includes at least one strip-shaped filter layer made of a material through which a fluid can at least partly flow. The filter layer has a length in a longitudinal direction and a width in a transverse direction. The filter layer has a metallic reinforcing region at least in a partial region. The metallic reinforcing region has a width and a length. The width of the reinforcing region is less than the width of the filter layer and/or the length of the reinforcing region is less than the length of the filter layer. A method for producing a filter layer for an exhaust gas filter is also provided.