Patent application number | Description | Published |
20100037598 | METHOD FOR PROVIDING AMMONIA FOR THE SELECTIVE CATALYTIC REDUCTION OF NITROGEN OXIDES AND CORRESPONDING DEVICE - A method and a device for providing ammonia for the selective catalytic reduction of nitrogen oxides in the exhaust system of an internal combustion engine, include the following steps: a) recording at least one actuating variable for influencing the state of the internal combustion engine; b) calculating a possible nitrogen oxide emission of the internal combustion engine on the basis of an evaluation of the at least one measured variable; c) calculating an ammonia quantity which corresponds to the possible nitrogen oxide emission; and d) initiating the provision of the corresponding ammonia quantity by exhaust-gas-external evaporation in an evaporator and exhaust-gas-external hydrolysis of aqueous urea solution, wherein at least one of the following values: i) the heating power of the evaporator or ii) the quantity of aqueous urea solution supplied to the evaporator, is regulated on the basis of the ammonia quantity calculated in step c). | 02-18-2010 |
20100037609 | Motor Vehicle and Method for Operating a Motor Vehicle with an Exhaust-Gas Heating Apparatus - A method for operating a motor vehicle which has, as components, a drive device, an exhaust system for exhaust gases of the drive device, at least one heating apparatus of the exhaust system and at least one energy converter, includes at least the following steps: (a) detecting a possibility of energy recovery, (b) activating the at least one energy converter, (c) feeding energy recovered by the at least one energy converter to the heating apparatus, (d) operating the heating apparatus for heating the exhaust gas with the recovered energy, and (e) detecting an end of the possibility of energy recovery, after which the energy converter is deactivated and the recovery of energy is ended. A motor vehicle for carrying out the method is also provided. | 02-18-2010 |
20100043516 | APPARATUS FOR PRODUCING A STRUCTURED METAL SHEET FOR EXHAUST GAS TREATMENT DEVICES - 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. | 02-25-2010 |
20100064671 | METHOD AND DEVICE FOR EVAPORATING A FLUID - A method and device for evaporating a predeterminable volume of fluid includes successive addition of partial volumes of the predeterminable volume to a supply line at different adding rates, at least partially evaporating the partial volumes forming vapor film between them and a supply line wall, conveying the partial volumes through the supply line to an evaporator surface, and applying the partial volumes to an evaporator surface region varying as a function of mass and/or volume adding rate of the partial volume, permitting effective evaporation of fluid, particularly urea/water solution. Utilization of the highest possible proportion of evaporator surfaces is achieved by mass and/or volume addition rate-dependent distribution of impingement surfaces on the evaporator surface. This heating strategy in the supply line region ensures the Leidenfrost effect when individual partial volumes are added. As even a distribution as possible is achieved using a corresponding geometrical configuration of the evaporator channel. | 03-18-2010 |
20100089036 | EXHAUST-GAS TREATMENT DEVICE HAVING A SENSOR FOIL - A device for exhaust-gas treatment includes at least one housing with an inner surface and at least one sensor foil disposed in the housing. The sensor foil is formed at least with a sensor element and a conductor element. The sensor foil is also provided with an edge up to which the conductor element extends and which bears against the inner surface of the housing. The housing also has an opening for contacting of the conductor element. The opening is surrounded on the inner surface by an electrical insulating layer. | 04-15-2010 |
20100092162 | EVAPORATOR DEVICE FOR MOBILE ANHYDROUS AMMONIA PRODUCTION, MOTOR VEHICLE AND METHOD FOR PRODUCING SUCH AN EVAPORATOR DEVICE - An evaporator device for ammonia to be used in mobile exhaust gas systems includes a basic body encompassing at least one inlet line and at least one outlet line. At least one heating element and at least one duct for connecting the inlet line to the outlet line are disposed within the basic body. The at least one heating element is in heat-conducting contact with an evaporation section of the at least one duct, while the at least one duct has a meandering course in the evaporation section. A motor vehicle and a method for producing an evaporator device, are also provided. | 04-15-2010 |
20100108657 | ELECTRICALLY HEATABLE HONEYCOMB BODY WITH ZONES OF INCREASES RESISTANCE AND MOTOR VEHICLE WITH AT LEAST ONE HONEYCOMB BODY - 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. | 05-06-2010 |
20100126147 | MOTOR VEHICLE AND METHOD FOR OPERATING A MOTOR VEHICLE HAVING AN EXHAUST GAS HEATING DEVICE - 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:
| 05-27-2010 |
20100126984 | ELECTRICALLY HEATABLE HONEYCOMB CONFIGURATION HAVING SUPPORT PINS - 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. | 05-27-2010 |
20100133251 | DEVICE HAVING A LARGE ELECTRICALLY HEATABLE HONEYCOMB BODY AND MOTOR VEHICLE HAVING AT LEAST ONE SUCH DEVICE - 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. | 06-03-2010 |
20100154411 | Exhaust-Gas Aftertreatment System Upstream of a Turbocharger, Method for Purifying Exhaust Gas and Vehicle Having the System - An exhaust-gas aftertreatment system for an internal combustion engine of a vehicle includes at least one exhaust line, at least one turbocharger and at least one exhaust-gas converter. The at least one exhaust-gas converter is provided between the internal combustion engine and the at least one turbocharger and has a first volume of at least 0.6 liters. A method for purifying exhaust gas and a vehicle having the system, are also provided. | 06-24-2010 |
20100175371 | METHOD FOR REGENERATING AT LEAST ONE PARTICLE AGGLOMERATOR AND MOTOR VEHICLE INCLUDING AN EXHAUST GAS AFTER-TREATMENT SYSTEM - 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. | 07-15-2010 |
20100186380 | METHOD FOR REMOVING SOOT PARTICLES FROM AN EXHAUST GAS, ASSOCIATED COLLECTING ELEMENT AND SYSTEM - 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. | 07-29-2010 |
20100189616 | METHOD FOR REMOVING SOOT PARTICLES FROM AN EXHAUST GAS, ASSOCIATED COLLECTING ELEMENT AND SYSTEM - 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. | 07-29-2010 |
20100196735 | METALLIC FOIL FOR PRODUCING HONEYCOMB BODIES, HONEYCOMB BODY PRODUCED THEREFROM AND METHOD OF PRODUCING A HONEYCOMB BODY USING A FOIL - A foil for producing a metal honeycomb or catalyst carrier body, has an average surface roughness of more than 0.3 μm (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 μm, especially approximately 0.6 μm, 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. | 08-05-2010 |
20110033344 | HONEYCOMB BODY WITH FLEXIBLE CONNECTING POINTS, EXHAUST-GAS TREATMENT UNIT AND MOTOR VEHICLE - 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. | 02-10-2011 |
20110033345 | HONEYCOMB BODY WITH FLEXIBILITY ZONES, EXHAUST-GAS PURIFICATION UNIT AND MOTOR VEHICLE - 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. | 02-10-2011 |
20110041484 | EVAPORATION UNIT FOR PRODUCING GASEOUS AMMONIA AND DEVICE AND MOTOR VEHICLE HAVING AN EVAPORATION UNIT - An evaporation unit for producing a gas flow including ammonia, in particular in connection with an SCR system in motor vehicles, includes at least a housing, at least one meandering flow channel delimited by a closed wall and having an inlet and an outlet and at least one heat conductor disposed in a first evaporation section of the at least one flow channel coaxially between the housing and the wall. A device and a motor vehicle having the evaporation unit are also provided. | 02-24-2011 |
20110067371 | HONEYCOMB BODY, METHOD FOR PRODUCING A BRAZED HONEYCOMB BODY AND EXHAUST GAS TREATMENT COMPONENT - 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. | 03-24-2011 |
20110100744 | HONEYCOMB BODY FORMED OF METALLIC FOILS, METHOD FOR THE PRODUCTION THEREOF AND MOTOR VEHICLE - 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. | 05-05-2011 |
20110104016 | HONEYCOMB BODY WITH CONNECTION-FREE REGION, EXHAUST-GAS PURIFICATION UNIT AND MOTOR VEHICLE - 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. | 05-05-2011 |
20110105317 | HONEYCOMB BODY HAVING RADIALLY DIFFERENTLY CONFIGURED CONNECTING POINTS - A honeycomb body includes a housing and a honeycomb structure with a plurality of channels. The honeycomb structure is formed by at least one at least partially structured metallic layer which forms connecting points that fix the honeycomb structure in place. A cross section of the honeycomb structure has radial zones with the connecting points. At least 1% and no more than 20% of inner contact points of the at least one at least partially structured metallic layer in the cross section form a connecting point in at least one zone. The connecting points have lengths in a structure direction being different in at least two radial zones. | 05-05-2011 |
20110107748 | PARTICLE FILTER WITH HYDROLYSIS COATING, DEVICE AND MOTOR VEHICLE - A particle filter includes channels that are formed by porous walls and run between a first end face and a second end face of the particle filter. The first end face has a hydrolysis coating outside the channels. A device includes at least one exhaust gas line through which an exhaust gas can flow in a flow direction, a nozzle for introducing a reducing agent containing or forming ammonia, and the aforementioned particle filter. The first end face of the particle filter is oriented towards the nozzle. A motor vehicle having the particle filter or the device, is also provided. | 05-12-2011 |
20110113765 | APPARATUS FOR DELIVERING A REDUCING AGENT AND METHOD FOR PRODUCING A MOTOR VEHICLE - A device for delivering a reducing agent, in particular a liquid urea-water solution, includes at least two of the following elements: a storage device (e.g. a tank), a delivery device (e.g. a pump), a deflecting device (e.g. a valve), a detecting device (e.g. a sensor), a separating device (e.g. a filter) and an outlet device (e.g. a nozzle, injector), which are interconnected by a line device. At least one element is pressure-sensitive and the adjacent line device near the pressure-sensitive element forms at least one heat sink. A device having a targeted freezing behavior is thus provided, allowing pressure-sensitive elements to be protected. A method for producing a motor vehicle is also provided. | 05-19-2011 |
20110120069 | METALLIC HONEYCOMB BODY WITH DEFINED CONNECTING POINTS AND MOTOR VEHICLE HAVING THE HONEYCOMB BODY - A honeycomb body includes at least a housing and a honeycomb structure with a multiplicity of channels. The honeycomb structure includes at least one at least partially structured metallic layer forming connecting points which fix the honeycomb structure. A cross section of the honeycomb structure has radial zones with connecting points. At least 1% and at most 20% of inner contact points of the at least one at least partially structured metallic layer in at least one of the zones forms a connecting point in the cross section. The channels have a different channel cross section in at least two of the radial zones. A motor vehicle having the honeycomb body is also provided. | 05-26-2011 |
20110120106 | DEVICE FOR PRODUCING ELECTRICAL ENERGY FROM EXHAUST GAS HEAT AND MOTOR VEHICLE HAVING THE DEVICE - A device for producing electrical energy from the exhaust gas of an internal combustion engine, includes a generator with an exhaust gas inlet connection, an exhaust gas outlet connection and at least one heat exchange section therebetween. At least one flow diversion and/or flow division is provided between the exhaust gas inlet connection and the heat exchange section. The heat exchange section has a plurality of flow paths perpendicular to the exhaust gas inlet connection, to be assigned to a plurality of heat exchange units. At least a portion of the heat exchange assembly has at least one thermoelectric element and a cooling device. The at least one thermoelectric element is captively connected to the cooling device. A motor vehicle having the device is also provided. | 05-26-2011 |
20110150718 | EXHAUST-GAS TREATMENT UNIT HAVING METAL FOILS OF SMALL MATERIAL THICKNESS AND METHOD FOR PRODUCING THE SAME - An exhaust-gas treatment unit includes at least one housing and a honeycomb structure having channels running between end faces of the honeycomb structure and being formed by at least partially structured metal foils having a material thickness of at most 50 μm. At least part of the metal foils is constructed with a fold of a predefined width at least in the region of an end face, and the metal foil is welded to itself at a weld seam in the region of this fold. A method for producing such an exhaust-gas treatment unit using a suitable welding process is also provided. | 06-23-2011 |
20110158870 | METHOD FOR OPERATING A DEVICE HAVING AT LEAST ONE ELECTRICALLY HEATABLE HONEYCOMB BODY AND DEVICE FOR THE CATALYTIC CONVERSION OF EXHAUST GASES - A method is provided for operating a device having at least one electrically heatable honeycomb body through which an exhaust gas can flow. The electrically heatable honeycomb body has at least one current distribution structure to which a plurality of short, successive voltage pulses are initially applied during activation, before a constant heating voltage is applied to the current distribution structure to heat the honeycomb body. A suitable device for the catalytic conversion of exhaust gases in an exhaust system is also provided. | 06-30-2011 |
20110162358 | EXHAUST GAS PURIFICATION SYSTEM FOR DIESEL ENGINES OF UTILITY MOTOR VEHICLES - An exhaust gas purification system for diesel engines of utility motor vehicles, includes an oxidation catalytic converter disposed in an exhaust tract, a reducing agent dosing device having a reducing agent injection device, a reducing agent decomposition device, a soot particle separator, a reduction catalytic converter and a muffler for the exhaust gases. The oxidation catalytic converter is disposed within a minimum distance directly downstream of outlet valves of the engine and a maximum distance of 0.75 m from an exhaust collecting pipe or an outlet of a turbocharger. The reducing agent decomposition device, the soot particle separator and the reduction catalytic converter are disposed separately from the oxidation catalytic converter. | 07-07-2011 |
20110167802 | METHOD FOR OPERATING AN EXHAUST-GAS SYSTEM WITH LAMBDA CONTROL AND MOTOR VEHICLE HAVING THE SYSTEM - A method for operating an exhaust-gas system of an internal combustion engine having at least one particle separator and a catalytic converter, includes at least the following steps: a) carrying out processes in the internal combustion engine with lambda control about a control value; b) identifying a regeneration process of the particle separator; c) determining an oxygen demand for the regeneration process of the particle separator; and d) adapting the lambda control by the defined oxygen demand for a time period of the regeneration process of the particle separator. A motor vehicle having a spark-ignition engine and being suitable for carrying out the method, is also provided. | 07-14-2011 |
20110179773 | METHOD FOR SELECTIVELY HEATING A REDUCING AGENT LINE AND DEVICE FOR EXHAUST GAS PURIFICATION IN A VEHICLE - A method for selectively heating a reducing agent line of an SCR device during operation of an exhaust gas purification system of an internal combustion engine and a device for exhaust gas purification, include a supply tank for a reducing agent for SCR applications, a device for introducing the reducing agent into an exhaust line of an internal combustion engine and at least one reducing agent line for fluidically connecting the supply tank to the device. | 07-28-2011 |
20110185715 | THERMOELECTRIC DEVICE, THERMOELECTRIC APPARATUS HAVING A MULTIPLICITY OF THERMOELECTRIC DEVICES AND MOTOR VEHICLE HAVING A THERMOELECTRIC APPARATUS - A thermoelectric device includes at least a first metal foil having a first material thickness, a second metal foil having a second material thickness, an interspace between the first metal foil and the second metal foil, an electrical insulation coating on the first metal foil and the second metal foil towards the interspace and a multiplicity of first semiconductor components and second semiconductor components, which are fixed and electrically connected to one another on the insulation coating in the interspace. A thermoelectric apparatus having a multiplicity of thermoelectric devices and a motor vehicle having a thermoelectric apparatus, are also provided. | 08-04-2011 |
20110192141 | EXHAUST SYSTEM COMPONENT HAVING A COMBINATION OF A HEAT EXCHANGER AND A CATALYTIC CONVERTER, MOTOR VEHICLE HAVING THE COMPONENT AND METHOD OF OPERATING THE COMPONENT - A component of an exhaust gas system for an internal combustion engine includes at least one housing with an inlet and an outlet for an exhaust gas and at least one inflow and one outflow for a medium. The component has a heat exchanger around which the exhaust gas can flow. The heat exchanger has a first thermal mass and a catalytic converter body through which the exhaust gas can flow. The catalytic converter body has a second thermal mass. A motor vehicle having a component and a method for operating a component, are also provided. | 08-11-2011 |
20110194987 | SCR SYSTEM WITH COMPENSATION ELEMENT AND MOTOR VEHICLE HAVING AN SCR SYSTEM - 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. | 08-11-2011 |
20110214413 | CONFIGURATION AND METHOD FOR CLEANING AN EXHAUST GAS FLOW OF AN INTERNAL COMBUSTION ENGINE BY SEPARATING PARTICLES AND MOTOR VEHICLE HAVING THE CONFIGURATION - A configuration for purifying or cleaning an exhaust-gas flow of an internal combustion engine includes at least an ionization device, an agglomeration device, and a (catalytically active) radial honeycomb body around a duct. The exhaust-gas is diverted from the duct into the radial honeycomb body, while the agglomerated particles are caught in a particle separator of the duct. A method for purifying or cleaning an exhaust-gas flow of an internal combustion engine and a motor vehicle including an exhaust system having the configuration, are also provided. | 09-08-2011 |
20110215093 | MODULAR TANK SYSTEM FOR A LIQUID REDUCING AGENT WITH A SUMP ELEMENT AND MOTOR VEHICLE HAVING THE SYSTEM - A modular tank system for a liquid reducing agent includes three modules. A first module has a tank with a first opening and an opposite second opening. A second module has a cap element for holding at least one discharge tube. A third module has a sump element. The cap element is disposed in the first opening and the sump element is disposed in the second opening. A motor vehicle having the modular tank system is also provided. | 09-08-2011 |
20110219756 | METHOD FOR OPERATING AN EVAPORATION UNIT FOR PRODUCING GASEOUS AMMONIA AND MOTOR VEHICLE HAVING AN EVAPORATION UNIT - A method for operating an evaporation unit for converting a volume flow to an ammonia-containing gas flow includes providing the evaporator unit with at least one first section and a second section downstream of the first section. The volume flow flows through the sections for evaporation. The volume flow is heated to not more than 180° C. in the first section by supplying a first amount of heat energy and the volume flow is heated to more than 350° C. and completely evaporated in the second section. A motor vehicle having an evaporation unit is also provided. | 09-15-2011 |
20110225952 | EXHAUST GAS PURIFICATION CONFIGURATION AND METHOD FOR EXHAUST GAS PURIFICATION USING A REACTANT - A configuration for purification of an exhaust gas flow of an internal combustion engine includes at least one exhaust gas line having an element for exhaust gas purification with a first end face and a second end face. The exhaust gas flows through the element from the first end face to the second end face. An adding device is provided downstream of the element for adding a reactant to the exhaust gas flow. The adding device is positioned at a distance of no more than 30 mm from the second end face of the element in such a way that at least part of the added reactant strikes the second end face of the element. A method for adding a reactant into an exhaust line during the operation of an internal combustion engine is also provided. | 09-22-2011 |
20110225957 | METHOD FOR REGENERATING AN OPEN PARTICLE SEPARATOR AND MOTOR VEHICLE HAVING AT LEAST ONE OPEN PARTICLE SEPARATOR - A method for regenerating an open particle separator includes at least determining at least one parameter, as a characteristic variable of a regeneration capability of the open particle separator. The at least one parameter is compared with a first threshold value. At least one portion of a comparison period during which the parameter has reached the first threshold value is determined. The portion is compared with a first minimum portion corresponding to a minimum regeneration time in the comparison time period. Measures are initiated to influence the parameter so that the parameter lies at least according to the first minimum portion and the first threshold value is reached and/or the open particle separator is regenerated. A motor vehicle having at least one open particle separator is also provided. | 09-22-2011 |
20110226778 | TANK FOR A REDUCING AGENT HAVING HEATING UNITS AND MOTOR VEHICLE HAVING A TANK - A tank for a reducing agent includes at least one side wall and a bottom. At least one heating unit is provided at least in the side wall or in the bottom. A motor vehicle having a tank is also provided. | 09-22-2011 |
20110231079 | METHOD AND DEVICE FOR OPERATING AN INTERNAL COMBUSTION ENGINE - According to a current operating state (BZ) of an internal combustion engine and/or a specified particle number emission limit (PE), a minimum hydrocarbon concentration (HCMK) of a combustion chamber exhaust gas of the internal combustion engine that is required to comply with the specified particle number emission limit is determined. An operation (B) of the internal combustion engine is specified to achieve a hydrocarbon concentration (HCK) of the combustion chamber exhaust gas that is at least as large as the determined minimum hydrocarbon concentration (HCMK). | 09-22-2011 |
20110232267 | METHOD AND DEVICE FOR THE ADDITION IN DROPLET FORM OF A LIQUID REDUCING AGENT INTO AN EXHAUST GAS LINE - A method and a device for the addition in droplet form of a liquid reducing agent to an exhaust gas line of an internal combustion engine, particularly to a rear end side of an exhaust gas treatment component, includes at least identifying at least one exhaust gas parameter during operation of the internal combustion engine, determining a size of a droplet of the reducing agent to be added as a function of an exhaust gas parameter, adjusting a first delivery pressure of the reducing agent toward the exhaust line as a function of the determined size of the droplet, and adding the reducing agent to the exhaust line with an adding unit. In this way, it can be achieved, in particular, that the end side of the exhaust gas treatment component is evenly wetted during operation of the internal combustion engine by using the droplets of the reducing agent. | 09-29-2011 |
20110258995 | MODULE FOR A THERMOELECTRIC GENERATOR, ELECTRICAL CONDUCTOR, THERMOELECTRIC GENERATOR, MOTOR VEHICLE AND METHOD FOR PRODUCING A MODULE - A module for a thermoelectric generator includes first and second ends, at least one inner tube and one outer tube disposed around the outside of the inner tube and at least one thermoelectric element disposed between the inner and outer tubes. The inner and outer tubes are each electrically insulated from the at least one thermoelectric element. At least one electrically conductive first contact is provided on each of the first and second ends, for electrically conductively connecting the at least one thermoelectric element to an electrical conductor. The module can conduct a fluid or coolant flow through the module from the first end to the second end. An electrical conductor, a thermoelectric generator, a motor vehicle and a method for producing a module, are also provided. | 10-27-2011 |
20110309087 | APPARATUS FOR DETERMINING A TANK FILL LEVEL, TANK FOR UREA/WATER SOLUTION AND MOTOR VEHICLE HAVING A TANK - An apparatus for determining a tank fill level includes at least one cap, an extraction pipe which extends through the cap and at least partially has an electrically conductive material, a jacket pipe disposed around the extraction pipe and at least partially has an electrically conductive material, and a measuring unit forming a first electrode with the extraction pipe and a second electrode with the jacket pipe. A tank for a urea/water solution is also provided, in which the apparatus is used as a quality sensor and/or a fill level sensor. A motor vehicle having a tank is also provided. | 12-22-2011 |
20110314798 | THERMOELECTRIC DEVICE - A thermoelectric device contains at least one module having a first carrier layer and a second carrier layer, an interspace disposed between the first carrier layer and the second carrier layer, and an electrical insulation layer disposed on each of the first carrier layer and on the second carrier layer toward the interspace. The thermoelectric device further has a plurality of p and n-doped semiconductor elements, which are arranged alternately in the interspace between the insulation layers and are alternately electrically connected to one another. | 12-29-2011 |
20120006007 | METHOD FOR OPERATING AN EXHAUST SYSTEM, EXHAUST SYSTEM AND VEHICLE HAVING AN EXHAUST SYSTEM - A method for operating an exhaust system including at least one oxidation catalytic converter, at least one configuration for selective catalytic reduction and at least one measuring probe for determining the effectiveness of the configuration, includes at least determining a conversion effectiveness of the configuration using the at least one measuring probe and calculating an effectiveness of nitrogen monoxide conversion in the oxidation catalytic converter from the determined conversion effectiveness. In this way, an estimate of the effectiveness of the nitrogen monoxide conversion to nitrogen dioxide of an oxidation catalytic converter in the exhaust system can be obtained without additional measuring probes in or on the oxidation catalytic converter. This reduces the maintenance frequency of the exhaust gas system and at the same time enables precise regulation of the exhaust gas conversion as a whole. An exhaust system and a vehicle having an exhaust system are also provided. | 01-12-2012 |
20120011836 | DEVICE AND METHOD FOR PRODUCING ELECTRICAL ENERGY FROM EXHAUST GAS AND MOTOR VEHICLE - A device and a method for producing electrical energy from an exhaust gas of an internal combustion engine include a generator with an exhaust gas inlet, an exhaust gas outlet and a heat exchange portion therebetween. The heat exchange portion includes a plurality of flow paths for the exhaust gas. The flow paths are at least partially surrounded by thermoelectric elements which are in thermally conductive communication with a cooling device on a side facing away from the flow path. A motor vehicle having the device or carrying out the method, is also provided. | 01-19-2012 |
20120036837 | METHOD AND DEVICE FOR THE CONTROLLED FEEDING OF A REDUCING AGENT - A method and a device provide for the controlled feeding of a reducing agent into an exhaust gas treatment unit with a storage capability for an exhaust gas component to be reduced which is generated from a mobile internal combustion engine. The method includes at least the following steps: a) determination of a quantity of the exhaust gas component to be reduced which is generated by the mobile internal combustion engine, b) determination of a storage capability of the exhaust gas treatment unit for the exhaust gas component to be reduced, c) determination of a metering of the reducing agent into the exhaust gas treatment unit as a function of steps a) and b), and d) feeding the reducing agent into the exhaust gas treatment unit. | 02-16-2012 |
20120039779 | METHOD FOR FEEDING REDUCING AGENT INTO AN EXHAUST GAS SYSTEM AND CORRESPONDING EXHAUST GAS SYSTEM AND MOTOR VEHICLE - A method for feeding reducing agent or reducing agent precursor into exhaust systems of mobile internal combustion engines and an exhaust system are preferably used for internal combustion engines with high nitrogen oxide compound emissions. A feed time is established. An exhaust parameter and/or necessary quantity of reducing agent is determined and a feed state of the reducing agent is defined. The reducing agent is treated if the feed state does not correspond to a stored state. The reducing agent feed to the exhaust system takes place last. The steps are repeated multiple times. This permits reducing agent to be fed into an exhaust system in a state suitable for the exhaust temperature, so that complete conversion of reducing agent takes place and selectively catalytic reduction is also ensured. This reduces the quantity of electrical energy necessary for converting reducing agent. A motor vehicle having the system is also provided. | 02-16-2012 |
20120042640 | THERMOELECTRIC DEVICE - A thermoelectric generator includes a plurality of thermoelectric devices, through which an exhaust gas of an internal combustion engine flows in succession. Each thermoelectric device forms at least one hot flow path for the exhaust gas and at least one cold flow path for a coolant. A plurality of p-doped and n-doped insulated semiconductor elements are connected in a targeted manner between the flow paths. At least part of the semiconductor elements in at least one of the thermoelectric devices are fixed to a flexible medium. | 02-23-2012 |
20120042648 | CONFIGURATION HAVING A PROTECTED TURBOCHARGER IN AN EXHAUST GAS RECIRCULATION LINE AND MOTOR VEHICLE HAVING THE CONFIGURATION - A configuration for treating exhaust gases of an internal combustion engine having a predetermined displacement volume, includes an exhaust gas recirculation line. Exhaust gas flowing through the exhaust gas recirculation line interacts with a turbocharger. A screening layer is provided in the exhaust gas recirculation line upstream of the turobcharger. The screening layer is larger than an average cross section of the exhaust gas recirculation line. A motor vehicle having at least one such configuration is also provided. | 02-23-2012 |
20120043153 | HONEYCOMB BODY FOR AN EXHAUST GAS PURIFICATION SYSTEM, METHOD FOR PRODUCING A HONEYCOMB BODY, EXHAUST LINE SECTION AND MOTOR VEHICLE - A honeycomb body for an exhaust-gas purification system may be used, for example, as a carrier body for catalytically acting coatings or as a filter, absorber or mixer in the exhaust system of an internal combustion engine. The honeycomb body has channels, an axial main direction, a planar front surface, a planar end surface and a circumferential surface disposed parallel to the axial main direction. The front surface and/or the end surface are disposed obliquely with respect to the axial main direction. Such a honeycomb body is advantageous, in particular, for applying reducing agent to the oblique end or front surface. A method for producing a honeycomb body, an exhaust line section and a motor vehicle are also provided. | 02-23-2012 |
20120060457 | COATED HONEYCOMB BODY AND METHOD FOR PRODUCING A COATED HONEYCOMB BODY - A method for producing a metallic honeycomb body from metallic layers with channels through which an exhaust gas stream can flow, includes providing the honeycomb body with a coating. Such honeycomb bodies are used in exhaust gas systems of preferably mobile internal combustion engines as catalyst carrier bodies, filters, mixers and/or adsorbers. The coating is provided in a two-stage application and enables the production of exceptionally advantageous coated metallic honeycomb bodies, which are distinguished by a large coating surface and a low flow resistance. At the same time, an exceptionally large surface enlargement is provided in the honeycomb body while using a smaller amount of coating. A honeycomb body is also provided. | 03-15-2012 |
20120111870 | INSTALLATION COMPONENT FOR A TANK, APPARATUS FOR DETERMINING A FILL LEVEL OF A TANK, METHOD FOR PRODUCING AN INSTALLATION COMPONENT, TANK AND MOTOR VEHICLE HAVING A TANK - An installation component for a tank includes, at least in parts, an electrically conductive material which forms a first electrode, and a second electrode which is electrically insulated with respect to the first electrode. At least one of the electrodes is applied to the installation component, in particular by a pad printing process, an airbrush printing process or a screen printing process. An apparatus for determining a fill level of a tank, a method for producing an installation component, a tank and a motor vehicle having a tank, are also provided. | 05-10-2012 |
20120156105 | INJECTION NOZZLE FOR SUPPLYING REDUCING AGENT AND DEVICE FOR TREATING EXHAUST GASES - An injection nozzle for supplying reducing agent to an exhaust gas system includes a plurality of outlet openings, each of which can generate different droplets of the reducing agent. A device for the treatment of exhaust gases includes an exhaust gas treatment unit and at least one corresponding injection nozzle, in which at least two groups of outlet openings form different impingement regions on the exhaust gas treatment unit. | 06-21-2012 |
20120174567 | THERMOELECTRIC DEVICE WITH TUBE BUNDLES, METHOD FOR OPERATING A THERMOELECTRIC DEVICE AND MOTOR VEHICLE HAVING A THERMOELECTRIC DEVICE - A thermoelectric device or thermoelectric generator (TEG) includes at least one exhaust line having an inlet and an outlet. At least one first tube bundle is a thermoelectric generator module and has tubes with outer surfaces forming the exhaust line in the thermoelectric generator module. At least one further tube bundle is a heat exchanger and has tubes with inner surfaces forming the exhaust line in the heat exchanger. A method for operating a thermoelectric device and a motor vehicle having a thermoelectric device are also provided. | 07-12-2012 |
20120174568 | THERMOELECTRIC DEVICE, MOTOR VEHICLE HAVING THERMOELECTRIC DEVICES AND METHOD FOR MANUFACTURING A THERMOELECTRIC DEVICE - A thermoelectric device includes at least one first flow duct, at least one second flow duct, at least one first carrier layer associated with the at least one first flow duct and at least one second carrier layer associated with the at least one second flow duct, at least one intermediate space between the first carrier layer and the second carrier layer and a plurality of p and n-doped semiconductor elements disposed in the at least one intermediate space and electrically interconnected. A relative first thermal expansion of the first carrier layer and a relative second expansion of the second carrier layer are equal under operating conditions. Suitable materials are provided for the first and second carrier layers that promote the use of such thermoelectric devices in exhaust systems of a motor vehicle. A motor vehicle having thermoelectric devices and a method for manufacturing a thermoelectric device are also provided. | 07-12-2012 |
20120177864 | THERMOELECTRIC MATERIAL AND METHOD FOR PRODUCING A THERMOELECTRIC MATERIAL - A thermoelectric material contains fibers and a method for producing a thermoelectric material uses fibers. The fibers, in this case, in particular, perform the function of influencing thermal conductivity, electrical conductivity, tensile strength and/or extensibility of the thermoelectric material. The thermoelectric material is used, in particular, in thermoelectric generators which are used, for example, in motor vehicles for converting thermal energy from the exhaust gas into electrical energy. | 07-12-2012 |
20120181261 | METHOD FOR HEATING A DELIVERY DEVICE FOR A REDUCING AGENT - A method for heating a delivery device for a reducing agent includes providing the delivery device with a return valve which is in an open position when an opening current is supplied to the return valve and which is in a closed position and operates as a heater when a heating current that is smaller than the opening current is supplied to the return valve. The return valve is preferably in heat-conducting contact with a metallic base plate of the delivery device. | 07-19-2012 |
20120186233 | DEVICE AND METHOD FOR TREATING EXHAUST GAS CONTAINING SOOT PARTICLES AND MOTOR VEHICLE HAVING THE DEVICE AND CARRYING OUT THE METHOD - A device for treating exhaust gas containing soot particles, includes at least one ionization element for ionizing soot particles and at least one separation device having a surface precipitator for depositing ionized soot particles. The at least one surface precipitator includes at least two at least partially electrically conductive neutralization regions that are electrically insulated from each other in order to neutralize ionized soot particles. A method for converting soot particles of an exhaust gas includes applying different electric potentials. A motor vehicle includes the device and carries out the method. | 07-26-2012 |
20120186237 | DELIVERY DEVICE AND TANK CONFIGURATION FOR A REDUCING AGENT AND MOTOR VEHICLE HAVING A TANK CONFIGURATION - 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. | 07-26-2012 |
20120198838 | EXHAUST GAS TREATMENT DEVICE FOR USE NEAR AN ENGINE AND MOTOR VEHICLE HAVING THE DEVICE - An exhaust gas treatment device includes at least a housing and a second exhaust gas treatment unit which is disposed at a distance from the housing and extends into the housing. The housing has an opening that is disposed laterally relative to the second exhaust gas treatment unit and extends laterally at least across 50% of the second exhaust gas treatment unit which extends into the housing. A motor vehicle having the exhaust gas treatment device is also provided. | 08-09-2012 |
20120260639 | EXHAUST GAS CLEANING COMPONENT WITH DEFLECTION SURFACE, METHOD FOR PRODUCTION THEREOF AND MOTOR VEHICLE HAVING THE COMPONENT - A method for producing an exhaust gas cleaning component having a carrier structure with an inflow side, an outflow side, a predefined through-flow direction and a deflection surface disposed opposite the outflow side, includes at least the following steps: providing the carrier structure, subjecting the carrier structure to an exhaust gas flowing from the inflow side to the outflow side in the predefined through-flow direction, determining a distribution of flow velocities on the outflow side of the carrier structure, and configuring the shape of the deflection surface with at least one backpressure element in dependence on the distribution of flow velocities on the outflow side, so that the distribution of flow velocities is equalized. An exhaust gas cleaning component and a motor vehicle having the exhaust gas cleaning component are also provided. | 10-18-2012 |
20120311999 | DEVICE FOR PROVIDING A LIQUID REDUCING AGENT AND MOTOR VEHICLE HAVING THE DEVICE - A device for providing a liquid reducing agent includes a reducing agent tank for storing a reducing agent. The reducing agent tank has a tank bottom including a separate chamber. A dosing or metering unit extracts reducing agent from the reducing agent tank at an extraction point disposed at the separate chamber. The dosing unit is disposed within the separate chamber. A motor vehicle having the device is also provided. | 12-13-2012 |
20120315196 | APPARATUS HAVING A TANK AND A DELIVERY UNIT FOR REDUCING AGENT - A device includes at least one tank having a tank bottom and a delivery unit for a liquid. The delivery unit is disposed in a chamber on the tank bottom and the chamber includes at least one heater. The tank preferably has at least one local ventilation heater extending from a discharge for liquid on the tank bottom over at least one tank side to the vicinity of a tank top. | 12-13-2012 |
20120321525 | APPARATUS HAVING A TANK AND A DELIVERY UNIT FOR REDUCING AGENT - An apparatus includes at least one tank having a tank bottom and a delivery unit for a liquid. The delivery unit is disposed in a chamber on the tank bottom and the chamber has at least one heater. | 12-20-2012 |