摘要:
A method for producing metal fibers includes a machining production method using at least one rotating tool. A device for producing metal fibers, a filter material having such fibers, a method for producing the material, a particle filter using such material, a motor vehicle equipped with the filter, and a fiber, 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:
An exhaust gas filter for cleaning an exhaust gas of an internal combustion engine, includes at least one strip-shaped filter layer. The filter layer has at least one filter region formed of a material through which a fluid can at least partly flow, for filtering out particulates from the exhaust gas. The filter layer also has at least one contact region with a catalytically active coating, for conversion of gaseous components of the exhaust gas. A method for cleaning an exhaust gas of an internal combustion engine is also provided.
摘要:
A delivery device for a reducing agent includes a metallic housing, at least one externally mounted metal suction pipe and an external pressure port. A metallic base plate, at which at least one pump and ducts are provided, is disposed inside the housing. The suction pipe, the housing, the metallic base plate, and the pump are in heat-conducting contact with each other. An elongate heating element is disposed next to the suction pipe. A tank configuration for a reducing agent and a motor vehicle having a tank configuration, are also provided.
摘要:
A device for providing a liquid reducing agent includes a reducing agent tank for storing the liquid reducing agent. The reducing agent tank has at least one heater disposed in a movable manner in the reducing agent tank and constructed as an active heater. A method for thawing frozen reducing agent and a motor vehicle having the device are also provided.
摘要:
An exhaust gas treatment device includes at least a first at least partially electrically conductive honeycomb body having a first front side and a first rear side, a second at least partially electrically conductive honeycomb body having a second front side and a second rear side, an intermediate space between the first honeycomb body and the second honeycomb body, a power supply for the formation of an electric potential between the first honeycomb body and the second honeycomb body, and a multiplicity of electrodes fastened to the first honeycomb body, extending beyond the first rear side over a first length into the intermediate space and positioned at a first distance from the second front side of the second honeycomb body. A method for treating motor vehicle exhaust gas containing particles and a motor vehicle are also provided.
摘要:
A method for operating a tank for reducing agent, in particular aqueous urea solution, having a sensor with a first electrical contact and a second electrical contact, includes initially determining a conductance value for liquid reducing agent, a conductance value for frozen reducing agent and a conductance value for air in steps a.1) to a.3. A voltage is then applied between the first electrical contact and the second electrical contact in step b. A conductance value between the first electrical contact and the second electrical contact is then determined in step c. The conductance value determined in step c) is then compared to the conductance values determined in steps a.1) to a.3) and a determination is made as to if liquid reducing agent, frozen reducing agent, or air is present in step d). A motor vehicle in which the method is carried out, is also provided.
摘要:
A device for treating exhaust gas containing soot particles includes at least one ionization element for ionizing soot particles, at least one filter element having at least one section to which an electrical potential can be applied, and at least one flow-directing device. The flow-directing device can influence a flow of the exhaust gases in such a way that the soot particles can be prevented from being deposited on at least one electric insulation of the ionization element or of the filter element or can be removed therefrom. Soot particles are therefore effectively prevented from being deposited on electric insulation of exhaust gas cleaning components, thereby preventing short-circuits from being produced and permitting exhaust gas systems to be safely operated.
摘要:
An SCR system includes at least one reducing agent tank, a filter, a feed device and a reducing agent line for feeding and conducting a reducing agent. At least one compensation element has a volume through which the reducing agent flows and is suitable for varying the volume as a function of a reducing agent pressure. A motor vehicle having an SCR system is also provided.
摘要:
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.