Abstract: A device for aftertreatment of exhaust gases, having a flow section which is able to be flowed through by exhaust gas and has at least one honeycomb body, acting as a catalytic converter, and has at least one heating element. The heating element is formed from a ceramic material which is able to be flowed through along a plurality of flow channels from an inflow side to an outflow side. The heating element is electrically conductive along the walls delimiting the flow channels and, by an electrical contact, is connectable to a voltage source, wherein the heating element runs in a meandering manner over a through-flowable cross section of the flow section.

Abstract: A device for the aftertreatment of exhaust gases of an internal combustion engine, with an exhaust gas line, which is configured to feed the exhaust gas expelled from the internal combustion engine to at least one component for exhaust gas aftertreatment. The at least one adsorber for the temporary storage of hydrocarbons contained in the exhaust gas, a catalytic converter for the catalytic aftertreatment of the exhaust gas, an electrically heatable catalytic converter and a cracking catalytic converter for cracking long-chain hydrocarbons into shorter-chain hydrocarbons are arranged in the exhaust gas line.

Abstract: In a device for the aftertreatment of exhaust gases from an emission source, in particular an internal combustion engine, with an exhaust tract through which an exhaust gas can flow in a direction of flow, with at least one catalytic converter, the catalytic converter having a ceramic honeycomb body has: a catalytically active surface coating, and with an electrically heatable heater, the heater having a metallic electrical conductor, the honeycomb body further having a plurality of flow channels which can be flowed through from a gas inlet side to a gas outlet side, wherein the conductor is integrated in the ceramic honeycomb body, and is arranged downstream of the gas inlet side and upstream of the gas outlet side, as viewed in the direction of flow.

Abstract: A device includes an exhaust gas turbocharger and an annular catalytic converter, which is mounted downstream of the turbocharger in the flow direction, wherein the annular catalytic converter has a first tubular flow section, a deflecting region, and a second annular flow section, wherein the tubular flow section is formed by an inner tube, and the annular flow section is formed between an outer tube, running substantially parallel to the inner tube, and the inner tube, and the deflecting region is designed to deflect the exhaust gas flow out of the tubular flow section into the annular flow section, wherein the tubular flow section of the annular catalytic converter comprises the same components as the gas outlet of the turbocharger mounted upstream in the flow direction.

Abstract: An apparatus for heating an exhaust gas after-treatment unit in a vehicle has, as a drive source, both a combustion engine and an electric motor. The apparatus includes: a honeycomb body configured for exhaust gas to flow therethrough, the honeycomb body having a hollow, through which hollow the exhaust gas flows; and at least one electric heating element arranged in the hollow so as to heat the honeycomb body. The honeycomb body includes a plurality of metal foils stacked one on top of the other, which metal foils form between them a plurality of flow channels, through which a flow can pass along an axial direction, wherein the hollow of the honeycomb body extends in a radial direction, in which the at least one heating element is accommodated.

Abstract: An apparatus for treating exhaust gases of an internal combustion engine having at least one main catalytic converter for chemical conversion of at least one exhaust gas component, having a hydrocarbon trap for intermediate storage of hydrocarbons, having a nitrogen oxide adsorber for intermediate storage of nitrogen oxides and having an electrically heatable heated catalytic converter, wherein the abovementioned components are arranged in a spatially delimited flow path and are traversed consecutively.

Abstract: A current feed-through for an electrically heatable catalytic converter, wherein the catalytic converter has in the interior thereof at least one electrical conductor, which is electrically contactable by the current feed-through, having a central electrically conductive element, which is guided from the interior of the catalytic converter through the outer housing wall thereof, having an electrical insulation layer, which surrounds the electrically conductive element on its radial outer face, and having a metallic sleeve, in which the electrically conductive element and the electrical insulation layer is received, wherein at the current feed-through or directly adjacently to the current feed-through there is arranged a device for reducing the heat conduction from the interior of the catalytic converter along the current feed-through to a contact face arranged outside the catalytic converter.

Abstract: A device for exhaust-gas aftertreatment, having a first, tubular flow path, having a diverting region and having a second, annular flow path. The tubular flow path is formed by an inner pipe and the annular flow path is, by an outer pipe running substantially parallel to the inner pipe, formed between the inner pipe and the outer pipe, and the diverting region is designed to divert the exhaust-gas flow from the tubular flow path into the annular flow path. The device has an annular catalytically active substrate body and an annular particle filter, wherein the substrate body and the particle filter are arranged in the annular flow path.

Abstract: A device for exhaust-gas aftertreatment, such as an annular catalytic converter, having a first, tubular flow path, having a diverting chamber and having a second, annular flow path, wherein the tubular flow path is delimited outwardly in the radial direction by an inner pipe and the second, annular flow path is delimited inwardly in the radial direction by the inner pipe and outwardly in the radial direction by an outer pipe, and the diverting chamber is designed to divert the exhaust-gas flow from the tubular flow path (8) into the annular flow path, wherein the annular catalytic converter has at least one annular substrate body which has a catalytically active coating applied to it and which is arranged in the annular flow path.

Abstract: The invention relates to an annular catalytic converter, having a first, tubular flow path, having a diverting region (4) and having a second, annular flow path, wherein the tubular flow path is formed by an inner pipe (1), wherein the annular flow path is formed between the inner pipe (1) and an outer pipe (2) surrounding the inner pipe, and the diverting region (4) is of pot-shaped form for the purposes of diverting the exhaust-gas flow from the tubular flow path into the annular flow path, wherein the inner pipe (1) and/or the outer pipe (2) has a conical cross section (D1, D2, D1, D4) that widens or narrows along the flow direction of the exhaust gas.

Abstract: A heating element for heating a component for exhaust gas aftertreatment using ohmic resistance includes: an unheated end region; an intermediate region; and a heated end region. The unheated end region and the heated end region are separated by the intermediate region, and the intermediate region consists of a thermally insulating material configured to minimize heat flow from the heated end region to the unheated end region.

Abstract: A device for cleaning exhaust gases includes: a housing configured such that exhaust gas is flowable through the housing in a main throughflow direction; an injector configured to dose a fluid into a region of the housing through which exhaust gas flows; an evaporator arranged in the housing, the evaporator having a plurality of surface elements extending along the main throughflow direction of the housing, and the fluid being dosable into the fluid along a direction extending perpendicularly to the main throughflow direction of the housing; and a heater configured to electrically heat the evaporator.

Abstract: A method for operating a device for dosed supply of a liquid, having a pump to deliver the liquid. The pump has an inlet and an outlet. An eccentric is arranged on the pump housing and a deformable diaphragm is arranged between a pump housing and the eccentric. The deformable diaphragm and the pump housing delimit a delivery path from the inlet to the outlet. The seal can be displaced along the delivery path by movement of the eccentric. A pressure sensor is connected to the outlet of the pump. A liquid is delivered by the pump. A time curve of the pressure at the outlet of the pump is monitored during delivery by the at least one pressure sensor. An angle position of the eccentric of the pump is detected using at least one characteristic feature of the time curve at the outlet.

Abstract: An apparatus for heating an exhaust gas after-treatment unit in a vehicle has, as a drive source, both a combustion engine and an electric motor. The apparatus includes: a honeycomb body configured for exhaust gas to flow therethrough, the honeycomb body having a hollow, through which hollow the exhaust gas flows; and at least one electric heating element arranged in the hollow so as to heat the honeycomb body. The honeycomb body includes a plurality of metal foils stacked one on top of the other, which metal foils form between them a plurality of flow channels, through which a flow can pass along an axial direction, wherein the hollow of the honeycomb body extends in a radial direction, in which the at least one heating element is accommodated.

Abstract: A tank system for a reducing agent includes: a vessel storing the reducing agent and having: an upper vessel wall, lateral vessel walls, a lower vessel wall forming a base of the vessel, a base region of the vessel having at least one opening, and an outer side of the vessel; and a conveying device, arranged on the outer side of the vessel, that provides the reducing agent under pressure to exhaust gas. The conveying device is disposed on the outer side of the vessel such that the conveying device, with the outer side of the vessel, forms a space S outside the vessel. The space S, by the at least one opening, is connected to the vessel interior allowing the reducing agent to flow from the interior of the vessel into the space S and is suppliable by the conveying device from the space S to the exhaust gas.

Abstract: A tank system for a reducing agent includes: a vessel configured to store the reducing agent, the vessel having: an upper vessel wall, lateral vessel walls, and a lower vessel wall; and a conveying device, the conveying device being configured to provide the reducing agent under pressure by way of an outlet to an exhaust gas. One or more openings are arranged in the lower vessel wall, the one or more openings forming a connection to a further volume (V) filled with reducing agent. At least one opening of the one or more openings has radially inwardly directed elements arranged on a circumference of the at least one opening.

Abstract: A tank system for a reducing agent includes: a vessel storing the reducing agent and having: an upper vessel wall, lateral vessel walls, a lower vessel wall forming a vessel base, a base region of the vessel having an opening, and an outer side of the vessel; and a conveying device on the outer side of the vessel that provides the reducing agent under pressure via an outlet to an exhaust gas. The conveying device with the outer side of the vessel forms a space S outside the vessel, the space S, via the opening, is connected to an interior of the vessel allowing reducing agent to flow from the interior into the space S and, by the conveying device, is suppliable from the space S to the exhaust gas and suctionable from the space S. A support is provided on the opening.

Abstract: A tank system for a reducing agent includes: a vessel configured to store the reducing agent, the vessel having: an upper vessel wall, lateral vessel walls, and a lower vessel wall configured to form a base of the vessel; and a heating device disposed in the vessel. At least parts of the heating device are disposed in a part of the base of the lower vessel wall of the vessel.

Abstract: An exhaust system for the aftertreatment of exhaust gases of an internal combustion engine, having, in series as viewed in a flow direction of the exhaust gas, a catalyst for the oxidation of the exhaust gas and/or a catalyst for storing nitrogen oxides, having an introduction point for the feed of a reducing agent, having an SCR catalyst for the selective catalytic reduction of nitrogen oxides, and having a particle filter, wherein the particle filter is arranged downstream of the SCR catalyst in the flow direction, and a second SCR catalyst and/or an ammonia slippage catalyst is arranged downstream of the particle filter in the flow direction.

Abstract: A device for cleaning exhaust gases includes: a housing configured such that exhaust gas is flowable through the housing in a main throughflow direction; an injector configured to dose a fluid into a region of the housing through which exhaust gas flows; an evaporator arranged in the housing, the evaporator having a plurality of surface elements extending along the main throughflow direction of the housing, and the fluid being dosable into the fluid along a direction extending perpendicularly to the main throughflow direction of the housing; and a heater configured to electrically heat the evaporator.