Patent application number | Description | Published |
20080295556 | Controlled Metal Foil Production Process, Apparatus for Performing the Production Process, and Metal Foil - A process produces structures which are superimposed on one another in a metal foil section. The process includes producing a primary structure using a first tool, and transferring the metal foil section to a second tool, the second tool having at least one shaping profiled roller which is responsible for transferring the metal foil section. A secondary structure is produced using the second tool. A spatial position of the primary structure and the secondary structure is determined in at least one subregion of the metal foil section. An incorrect position is detected and an operating parameter of the at least one profiled roller is adapted in dependence on the detected incorrect position. An apparatus is suitable for this process and produces metal foils which are suitable for the production of catalyst support bodies that can be used in exhaust systems of internal combustion engines. | 12-04-2008 |
20090158741 | Method for Generating Openings in a Metal Foil, Method for Producing a Honeycomb Body, Exhaust Gas Treatment Unit Having a Honeycomb Body Produced by the Method and Motor Vehicle - A method for generating openings in a metal foil includes at least the following steps:
| 06-25-2009 |
20090277156 | Tank For A Reducing Agent, Motor Vehicle Having A Tank For A Reducing Agent And Method For Operating An SCR System Of A Motor Vehicle - A tank for a reducing agent which forms ammonia or which includes ammonia, has a planar first tank volume and at least one elongate second tank volume. A motor vehicle has an internal combustion engine, an exhaust system with an SCR catalytic converter and a reducing agent metering device and a body with a roof. A tank with a planar first tank volume for the reducing agent is provided on the roof. A method for operating an SCR system of a motor vehicle which has at least two tank volumes, a reducing agent metering device and an SCR catalytic converter, is also provided. | 11-12-2009 |
20090277161 | Device For Supplying A Reducing Agent Solution Into An Exhaust System And Corresponding Exhaust System, Method and Vehicle - A device for supplying reducing agent solution into an exhaust system, includes a reservoir for reducing agent solution and a delivery device for delivering reducing agent solution from the reservoir to a reducing agent infeed configuration. A delivery height to be overcome between the reservoir and the reducing agent infeed configuration is less than 1.5 meters and the delivery device includes a diaphragm pump. The device permits the dosed metering of reducing agent solution into an exhaust system of an internal combustion engine regardless of prevailing boundary conditions, in particular regardless of the position of the device, which is for example influenced by a position of a corresponding automobile. In particular, it is thus also possible to ensure reliable metering of reducing agent solution into the exhaust system even when the automobile or motor vehicle is traveling over grades. A corresponding exhaust system, method and utility vehicle are also provided. | 11-12-2009 |
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 |
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 |
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 |
20100126152 | METAL SHEET HAVING A MICROSTRUCTURE RELIEVED OF NOTCHING, CARRIER BODY HAVING A PLURALITY OF SHEETS, AND EXHAUST SYSTEM HAVING THE CARRIER BODY - 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. | 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 |
20100184590 | HONEYCOMB BODY HAVING A METALLIC FOIL WITH AN OXIDE COAT, FOIL HAVING AN OXIDE COAT AND METHOD FOR PRODUCING AN OXIDE COAT ON A METALLIC FOIL - 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 γ-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 μm or approximately 0.6 μm 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. | 07-22-2010 |
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 |
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 |
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 |
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 |
20110146241 | METHOD FOR OPERATING A UREA-WATER SOLUTION METERING SYSTEM AND MOTOR VEHICLE USING THE SYSTEM - A method for operating a device for providing a liquid reactant to an exhaust gas system. The device includes at least one tank and an injection nozzle connected to one another by a line. The line has a pump for feeding the reactant. A controllable return line connected between the pump and the injection nozzle leads from the line to the tank. A controller controls operation of the injection nozzle, the pump and the return line, so that the reactant is only circulated intermittently through the controllable return line. A motor vehicle using the method 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 |
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 |
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 |
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 |
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 |
20120097659 | HONEYCOMB BODY HEATABLE IN MULTIPLE STAGES, METHOD FOR HEATING A HONEYCOMB BODY AND MOTOR VEHICLE - An electrically heatable honeycomb body includes channels and at least one heating disk having at least one first and one second layer stack of electrically conductive material. The first and second layer stacks are interleaved with and electrically insulated from each other. The first layer stack forms a first current path for conducting an electrical current for a first heating circuit and the second layer stack forms a second current path for conducting an electrical current for a second heating circuit. The first heating circuit operates at a power of 300 W to 500 W and the second heating circuit operates at 500 W to 700 W. Exhaust gas of an internal combustion engine can be evenly heated by several independent heating circuits in a common heating disk even with different heating capacities using a simple construction. A method for heating a honeycomb body and a motor vehicle are provided. | 04-26-2012 |
20120110986 | DEVICE FOR EVAPORATING A UREA-WATER SOLUTION, METHOD FOR OPERATING THE DEVICE AND MOTOR VEHICLE - A device for evaporating a urea-water solution includes a delivery duct for the urea-water solution. The delivery duct extends through at least a first zone and a second zone for the introduction of heat energy. The zones can be heated separately from one another and, in the second zone, the delivery duct initially has a meandering course in a second inlet region, and thereafter has a rectilinear course. A method for evaporating a urea-water solution includes pre-heating the urea-water solution in the first zone to a temperature in a range from 100° C. to 150° C. and evaporating the urea-water solution in the second zone at a temperature in a range from 420° C. to 490° C. In particular, this significantly reduces the tendency for such an exhaust-gas-external evaporator for a urea-water solution to become blocked. A motor vehicle is also provided. | 05-10-2012 |
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 |
20120174565 | REDUCING AGENT DELIVERY DEVICE WITH COMPENSATION ELEMENT, METHOD FOR COMPENSATING FREEZING OF A REDUCING AGENT IN A DELIVERY DEVICE AND MOTOR VEHICLE HAVING A DELIVERY DEVICE - A delivery device for delivering liquid reducing agent includes a reducing agent tank. At least a delivery unit, at least one first compensation element, a reducing agent line and a metering unit together have an overall volume to be filled with a reducing agent and are configured for delivering, conducting and metering the reducing agent from the reducing agent tank. The at least one first compensation element is configured for reducing the overall volume when a negative pressure occurs in the delivery device. A method for compensating freezing of a reducing agent in a delivery device and a motor vehicle having a delivery device, are also provided. | 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 |
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 |
20120186447 | EXHAUST GAS TREATMENT DEVICE HAVING TWO HONEYCOMB BODIES FOR GENERATING AN ELECTRIC POTENTIAL, METHOD FOR TREATING EXHAUST GAS AND MOTOR VEHICLE HAVING THE DEVICE - 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. | 07-26-2012 |
20120222409 | INJECTOR MOUNT AND EXHAUST LINE HAVING AN INJECTOR MOUNT - An injector mount for completely accommodating at least one injector includes a housing having at least one injector chamber. The at least one injector chamber has a first opening and a second opening. The first opening of the injector chamber can be connected to a region of an exhaust line that conducts exhaust gas, and the second opening of the injector chamber can be closed repeatedly by a closure. An exhaust line having an injector mount is also provided. | 09-06-2012 |
20120260632 | METHOD FOR OPERATING A DELIVERY DEVICE FOR A REDUCING AGENT AND MOTOR VEHICLE HAVING A DELIVERY DEVICE - A method for operating a reducing agent delivery device having a liquid reducing agent tank, an injector dispensing reducing agent into an exhaust treatment device, an internal combustion engine and a reducing agent line from tank to injector, includes conveying the reducing agent from tank to injector with a pump and providing a pressure sensor in the line. The method includes, repeatedly: determining and providing supply pressure for the injector in the delivery device with the pump, calculating an injector opening time from a determined injection volume and supply pressure and opening the injector at the calculated injector opening time. A venting procedure at a point in time includes: determining an increase of a pressure conveying volume characteristic in the delivery device, calculating an air bubble volume by comparing the increase to a target increase, and conveying a conveying volume through the injector. A motor vehicle is also provided. | 10-18-2012 |
20120285147 | DELIVERY DEVICE FOR DELIVERING A REDUCING AGENT AND MOTOR VEHICLE HAVING A DELIVERY DEVICE - A delivery device for delivering a reducing agent from a reducing agent tank to an exhaust gas treatment device of an internal combustion engine, includes a partially rigid reducing agent line and a delivery pump disposed in the reducing agent line and having a delivery direction from the reducing agent tank to the exhaust gas treatment device. The delivery device has at least one vibration compensating device selected from the following group: an inflow compensating device upstream of the delivery pump in the delivery direction, an outflow compensating device downstream of the delivery pump in the delivery direction, a pump-internal compensating device within the delivery pump, and a structure borne noise compensating device on a fixing of the delivery pump. A motor vehicle having the delivery device is also provided. | 11-15-2012 |
20120298239 | VESSEL FOR A LIQUID, IN PARTICULAR A REDUCING AGENT, AND VEHICLE HAVING THE VESSEL - A container for a liquid has a container wall and at least one inner chamber for receiving the liquid. The container has at least one discharge line for discharging liquid located in the at least one inner chamber. The at least one discharge line at least reduces relative movements of regions of the container wall spaced apart from each other. | 11-29-2012 |
20120304626 | METHOD FOR DETERMINING AN AMOUNT OF LIQUID REMOVED FROM A TANK AND REDUCING AGENT SUPPLY DEVICE FOR A MOTOR VEHICLE - A method for determining an amount of liquid removed from a tank per unit time includes discontinuously feeding the liquid to exhaust gas of an internal combustion engine by at least feeding the liquid through an injection line into the exhaust gas, measuring pressures simultaneously at least at two points in the injection line and determining an amount of liquid fed in per unit time from the measured pressures. The amount of liquid removed between a first point in time and a second point in time is further derived by integrating the amounts of liquid removed per unit time over a period of time from the first point in time to the second point in time. The method allows the precise consumption of the liquid to be calculated and the remaining amount of liquid in the tank to be additionally determined. On-board diagnosis is further possible with the method. | 12-06-2012 |
20120308455 | DEVICE HAVING AN INJECTOR FOR A LIQUID REDUCING AGENT, CONFIGURATION HAVING THE DEVICE AND METHODS OF USING THE DEVICE AND THE CONFIGURATION - A device includes an injector for a liquid having at least one pressure sensor, preferably an integrated pressure sensor. The device is used, in particular, for adding liquid reducing agent to an exhaust gas line of a motor vehicle. A configuration having the device and methods of using the device and the configuration are also provided. | 12-06-2012 |
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 |
20120324866 | METHOD FOR OPERATING A DELIVERY DEVICE FOR A REDUCING AGENT AND DELIVERY DEVICE FOR A REDUCING AGENT - A method for operating a delivery device for delivering a reducing agent from a reducing agent tank into an exhaust treatment device of an internal combustion engine of a motor vehicle, includes at least intermittently carrying out a ventilation process of the delivery device during operation of the internal combustion engine. A registration of a ventilation process first occurs. A timing unit having a preset time interval and/or a mass-flow summing unit having a preset total mass flow is then actuated. When the preset time interval and/or the preset total mass flow is reached, the ventilation process is then carried out. In particular, monitoring the delivery device by a pressure sensor can thus be omitted. A delivery device for delivering a reducing agent is also provided. | 12-27-2012 |
20130025268 | METHOD FOR OPERATING A DELIVERY UNIT FOR A REDUCING AGENT AND MOTOR VEHICLE HAVING A DELIVERY UNIT - A method for operating a reducing agent delivery unit having a tank, a feed line running from the tank to an addition point, a return line branching off from the feed line and a valve to be activated with an electrical current for closing off the return line, includes initially applying an activation current to the valve for a first time interval. Subsequently, a holding current is applied to the valve when the first time interval has elapsed. Then, an operating variable of the delivery unit is determined and at least the activation current, the holding current and/or the first time interval are adapted as a function of the determined operating variable. A motor vehicle having a delivery unit is also provided. | 01-31-2013 |
20130025269 | DEVICE FOR PROVIDING A LIQUID REDUCING AGENT AND MOTOR VEHICLE HAVING THE DEVICE - A device for providing liquid reducing agent includes a tank with an interior space and a vessel disposed at least partially in the interior space of the tank. The vessel is at least partially surrounded on the outside by a filter having a filter surface and a filter depth. A delivery unit disposed in the vessel is configured to deliver reducing agent from the tank, through the filter and to an extraction point for reducing agent. A motor vehicle having the device is also provided. | 01-31-2013 |
20130031894 | METHOD AND EXHAUST-GAS TREATMENT DEVICE FOR REGENERATING AN EXHAUST-GAS PURIFICATION COMPONENT AND MOTOR VEHICLE HAVING THE EXHAUST-GAS TREATMENT DEVICE - A method and an exhaust-gas treatment device for regenerating an exhaust-gas purification component include charging at least one capacitor and heating at least one sub-volume of the exhaust-gas purification component to at least 900° C. by supplying at least a part of the energy stored in the capacitor. A particle burn-off reaction can be started from the at least one sub-volume for a large volume of exhaust-gas purification components. Exhaust-gas purification components in an exhaust system of an internal combustion engine can thus be completely regenerated in an energy-efficient manner. A vehicle having the exhaust-gas treatment device and carrying out the method is also provided. | 02-07-2013 |
20130036724 | METHOD FOR METERING A REDUCING AGENT, METHOD FOR SETTING UP A CONTROL UNIT FOR A METERING DEVICE AND MOTOR VEHICLE HAVING A METERING DEVICE - A method for metering a reducing agent from a metering device to an exhaust gas treatment device includes initially determining at least one operating parameter of the metering device. An injector pressure at an injector for feeding the reducing agent into the exhaust gas treatment device is then calculated from the at least one operating parameter. Then, an opening time for the injector is calculated, in which at least the injector pressure determined in step b) is used. The injector is then opened for the opening time calculated in step c). A method for setting up or configuring a control unit for a metering device and a motor vehicle having a metering device are also provided. | 02-14-2013 |
20130036726 | DEVICE FOR STORAGE OF AN OPERATING FLUID FOR A MOTOR VEHICLE, METHOD FOR MOUNTING THE DEVICE, METHOD FOR MONITORING THE DEVICE AND MOTOR VEHICLE - A device for storing or supplying an operating fluid includes a tank with an interior space and a protrusion which protrudes into the interior space and has a circumferential surface. At least one electrode for determining a filling level is disposed radially, running around the circumferential surface. Methods for mounting such a device and for monitoring a reserve filling level as well as a motor vehicle are also provided. | 02-14-2013 |
20130061951 | CONTAINER HAVING A DISCHARGE LINE FOR AN OPERATING LIQUID OF A MOTOR VEHICLE, METHOD FOR PRODUCING THE CONTAINER AND MOTOR VEHICLE HAVING THE CONTAINER - A container for an operating liquid or fluid for a motor vehicle includes a container wall which delimits an interior space or chamber of the container. The container has a first wall section, a second wall section and at least one discharge line for discharging the operating liquid out of the container. The discharge line extends from the first wall section to the second wall section and can be adjusted in its length to a distance between the first wall section and the second wall section. A method for producing the container and a motor vehicle having the container are also provided. | 03-14-2013 |
20130098006 | DEVICE, HAVING A SYSTEM HEATING UNIT, FOR PROVIDING A REDUCING AGENT, HEAT TRANSFER METHOD AND MOTOR VEHICLE - A device for providing a reducing agent for an exhaust gas system includes a system heating unit for heating a reducing agent and at least one heat conduction element transmitting heat from the system heating unit to at least one of the following components: a tank, a delivery line, a filter, a pump, a valve or a sensor. A thermal heating method using a heat pipe and a motor vehicle having the device are also provided. | 04-25-2013 |
20130145932 | METHOD AND APPARATUS FOR REDUCING SOOT PARTICLES IN THE EXHAUST GAS OF AN INTERNAL COMBUSTION ENGINE - An apparatus for reducing soot particles in exhaust gas, particularly of an internal combustion engine, includes first and second at least partially electrically conductive structures with an intermediate space therebetween, a high voltage source forming a potential between the first and second structures and at least one at least partially electrically conductive intermediate structure in the intermediate space receiving an intermediate potential. A method for treating the exhaust gas includes conducting exhaust gas from the first to the second structure and applying a high voltage at least temporarily between the first and second structures. At least part of the soot particles in the exhaust gas is ionized or agglomerated and deposited on the second structure. A high voltage between potentials of the first and second structures is applied at least temporarily to the intermediate structure. An electric field is influenced favorably and disruptions from undesirable voltage flashovers are reduced. | 06-13-2013 |
20130152554 | METERING UNIT FOR A REDUCING AGENT, METHOD FOR METERING REDUCING AGENT AND MOTOR VEHICLE HAVING A METERING UNIT - A metering unit for a reducing agent includes an injector for supplying the reducing agent to an exhaust gas treatment device. A temperature sensor is disposed at the injector. A method for metering reducing agent and a motor vehicle having a metering unit are also provided. | 06-20-2013 |
20130153059 | HOLDER FOR AT LEAST ONE ELECTRODE IN AN EXHAUST-GAS LINE AND APPARATUS HAVING AT LEAST ONE HOLDER - A holder for at least one electrode, in particular a discharge electrode which is suitable for producing a corona discharge, in an exhaust-gas line, includes a body through which an exhaust gas can flow and at least one electric contact for the at least one electrode. Preferably, the at least one electric contact is integrated into the body. An apparatus for fixing at least one electric electrode in an exhaust-gas line is also proposed. The apparatus has at least one such holder and the apparatus has a particle separator disposed downstream in exhaust gas flow direction. | 06-20-2013 |
20130160433 | APPARATUS FOR MEASURING THE FILLING LEVEL OF A UREA CONTAINER HAVING AN ULTRASOUND SENSOR AND MOTOR VEHICLE HAVING A UREA CONTAINER - An apparatus for measuring a filling level of a urea container by determining distance using sound waves (ultrasound) emitted by a sensor and echoes thereof, includes a urea container bottom and a sump with an overall height. The sump is adjacent the urea container bottom and located below the level of the urea container bottom. The sump is connected in an open manner to the urea container and bounded at the bottom by a sump bottom. The sensor is accommodated in the vicinity of the sump and, with a sound-emitting surface for emitting sound waves and receiving echoes of the sound waves, is fitted in the urea container with the sound-emitting surface of the sensor at most adjacent the level of the urea container bottom. A motor vehicle having the urea container is also provided. | 06-27-2013 |
20130167512 | METHOD FOR OPERATING AN EXHAUST GAS TREATMENT DEVICE AND MOTOR VEHICLE HAVING THE DEVICE - A method for operating an exhaust gas treatment device having at least one reservoir for a reducing agent and at least one delivery device for a reducing agent, includes at least checking a filling level of the at least one reservoir, checking a current exhaust gas mass flow, and delivering reducing agent if the filling level of the at least one reservoir is below a minimum filling level and the exhaust gas mass flow is in a low-load range. A motor vehicle having the exhaust gas treatment device is also provided. | 07-04-2013 |
20130175174 | DEVICE HAVING AN ANNULAR ELECTRODE FOR DECREASING SOOT PARTICLES IN THE EXHAUST GAS OF AN INTERNAL COMBUSTION ENGINE - A device for decreasing soot particles in exhaust gas, especially from an internal combustion engine, includes concentric outer and inner tubes forming an intermediate space through which the exhaust gas can flow. At least one annular electrode with a multiplicity of electrode tips protruding radially into the intermediate space is disposed on the inside of the outer tube. Terminals can connect the annular electrode and inner tube to a high voltage source forming an electric field in the intermediate space. At least two electrodes are preferably disposed axially at an electrode spacing of preferably 10 to 30 mm. The electrode tips can be approximately conical or pin-shaped with a radial length of 3 to 10 mm. The electrode tips of each electrode have a tip spacing in circumferential direction of 3 to 20 mm or 5 to 10 mm creating a very effective and uniform radial electric field for ionization. | 07-11-2013 |
20130192204 | DEVICE FOR PROVIDING LIQUID REDUCING AGENT, METHOD FOR THAWING FROZEN REDUCING AGENT AND MOTOR VEHICLE HAVING THE DEVICE - 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. | 08-01-2013 |
20130199838 | CONFIGURATION FOR A POWER SUPPLY OF A COMPONENT IN AN EXHAUST GAS SYSTEM - A configuration for a power supply of a component in an exhaust gas system includes at least one electrical contact disposed at an exhaust gas line. The at least one electrical contact is surrounded by an electrical insulation material. | 08-08-2013 |
20130216440 | DEVICE FOR TREATING EXHAUST GAS CONTAINING SOOT PARTICLES - 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. | 08-22-2013 |
20130219869 | DEVICE FOR CONVEYING LIQUID REDUCING AGENT AND MOTOR VEHICLE HAVING THE DEVICE - A device for conveying a liquid reducing agent from a tank to a supply element includes a connecting element for connecting a reducing agent line, a system heating unit and a heat-conducting structure configured to transport heat from the system heating unit to the connecting element. A motor vehicle having the device is also provided. | 08-29-2013 |
20130232954 | METHOD FOR OPERATING A METERING APPARATUS, METERING APPARATUS AND MOTOR VEHICLE HAVING A METERING APPARATUS - A method for operating a metering apparatus for reducing agent includes providing the metering apparatus with at least one movable pump element movable between upper and lower reversal points to convey reducing agent into an exhaust-gas treatment component, and at least one position transmitter for determining a pass of the movable pump element. In the method, a first detection of a position of the movable pump element is provided by the position encoder. Subsequently, the movable pump element is moved and reducing agent is metered into the exhaust-gas treatment component. Thereupon, a second detection of a position of the movable pump element is provided by the position encoder, and subsequently a first quantity of reducing agent which is metered between the first and second detections is determined. A metering apparatus and a motor vehicle having a metering apparatus are also provided. | 09-12-2013 |
20130232957 | DELIVERY UNIT FOR A LIQUID ADDITIVE, METHOD FOR OPERATING A DELIVERY UNIT AND MOTOR VEHICLE HAVING A DELIVERY UNIT - A delivery unit for a liquid additive includes a first pump with a first suction port and a first pressure port, a second pump with a second suction port and a second pressure port, and a feed device. The feed device is connected to the first pressure port through a first line system and the first suction port is connected to a tank for the liquid additive through a second line system. The second pressure port is connected to the tank through a third line system and the second line system and the third line system are separated from one another. A method for operating a delivery unit and a motor vehicle having a delivery unit are also provided. | 09-12-2013 |
20130255231 | DEVICE FOR TREATING EXHAUST GAS CONTAINING SOOT PARTICLES AND MOTOR VEHICLE HAVING THE DEVICE - 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 electric potential can be applied and at least one agglomeration unit for at least partial agglomeration of electrically charged soot particles. The agglomeration unit is disposed between the ionization element and the filter element and the agglomeration unit has at least one outer pipe and at least one inner element. The filtering power of an exhaust system of an internal combustion engine is therefore increased by an increase in the agglomeration rate of the soot particles. A motor vehicle having the device is also provided. | 10-03-2013 |
20130255234 | METHOD FOR OPERATING A REDUCING AGENT TANK AND MOTOR VEHICLE IN WHICH THE METHOD IS CARRIED OUT - 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. | 10-03-2013 |
20130255235 | METHOD FOR OPERATING AN EXHAUST-GAS TREATMENT DEVICE AND MOTOR VEHICLE HAVING THE DEVICE - A method for operating an exhaust gas treatment device having at least one heater and at least one supply device for a reducing agent includes initially carrying out a test in order to determine if the reducing agent is to be supplied, and subsequently implementing different heating strategies in each case. In the event that the reducing agent is to be supplied, the exhaust gas treatment device is heated with the heater until a first threshold temperature is reached, if a first temperature lies below the first threshold temperature. In the case when no reducing agent is to be fed, the exhaust gas treatment device is heated with the heater until a second threshold temperature is reached, if a second temperature lies below the second threshold temperature. A motor vehicle having the device is also provided. | 10-03-2013 |
20130291731 | DEVICE FOR PRODUCING AN ELECTRICAL FIELD IN AN EXHAUST GAS SYSTEM - A device for producing an electrical field in an exhaust gas system includes an exhaust gas line in which at least one electrode is disposed. The at least one electrode is in contact with a power supply and is constructed to have at least one metal plate. | 11-07-2013 |
20130327026 | DEVICE FOR PROVIDING A LIQUID REDUCING AGENT HAVING A TANK WITH A TEMPERATURE SENSOR AND MOTOR VEHICLE HAVING THE DEVICE - A device for providing liquid reducing agent includes a reducing-agent tank with a tank wall which delimits a tank interior. The tank wall has a metallic wall section and the device has a temperature sensor which is disposed outside the reducing-agent tank. The temperature sensor is configured to determine a temperature of the reducing agent in the reducing-agent tank through the metallic wall section. A motor vehicle having the device is also provided. | 12-12-2013 |
20130340409 | METHOD FOR HEATING A DELIVERY SYSTEM AND MOTOR VEHICLE HAVING A DELIVERY SYSTEM - A method for heating a delivery system providing reducing agent to an exhaust gas treatment device of an internal combustion engine having electrical components, includes determining a temperature in the delivery system, determining thermal energy required for error-free operation of the delivery system in a time interval, and introducing the required thermal energy into the delivery system by operating the electrical components within the time interval. The electrical components are activated at a time offset of at least 30 seconds. The required energy is determined so that the quantity of reducing agent to be delivered hourly is provided in liquid form at least four times after the time interval. The method prevents overloading of an electrical system of a motor vehicle when heating the delivery system and prevents ice cavity formation in a reducing agent in a tank. A motor vehicle having a delivery system is also provided. | 12-26-2013 |
20140033684 | METHOD FOR OPERATING AN SCR DOSING UNIT AND MOTOR VEHICLE HAVING A DOSING UNIT - A method for operating a dosing unit for dosing reducing agent into an exhaust gas treatment device for purifying the exhaust gases of an internal combustion engine, includes providing the dosing unit with at least one delivery pump, at least one injector and a line section for conducting reducing agent from the delivery pump to the injector. The dosing unit is first operated for dosing reducing agent into the exhaust gas treatment device. Then, the dosing unit is shut off. Subsequently, a first pressure is maintained in the line section for at least a first time period, with the first pressure exceeding atmospheric pressure. A motor vehicle having the dosing unit is also provided. | 02-06-2014 |
20140075923 | INJECTION DEVICE FOR INJECTING A FLUID AND MOTOR VEHICLE HAVING AN INJECTION DEVICE - An injection device for injecting a fluid into an exhaust-gas treatment device includes an injector positioned in an injector holder. The injector has a supply opening and a component of the injector holder extends into the supply opening. The injection device is suitable, in particular, for supplying a urea/water solution into an exhaust-gas treatment device of a motor vehicle. The component is preferably rigid in the longitudinal direction and can be compressed in the radial direction by way of a deformable rubber shell, in order to compensate for the volumetric expansion of the solution if it freezes. A motor vehicle having the injection device is also provided. | 03-20-2014 |
20140096512 | REDUCING AGENT TANK HAVING A SENSOR FOR DETERMINING A FILL LEVEL AND MOTOR VEHICLE HAVING THE TANK - A tank for a reducing agent includes a tank wall having an outer side and an interior at least partially delimited by the tank wall. A sensor is disposed at the tank wall and has a first electrical contact and a second electrical contact. The first electrical contact and the second electrical contact communicate in an electrically conductive manner with the interior, extend through the tank wall from the interior to the outer side of the tank wall and are disposed at a first spacing of less than 5 cm from one another. A motor vehicle having the tank is also provided. | 04-10-2014 |
20140112850 | DEVICE HAVING AN ELECTRICALLY HEATABLE HONEYCOMB BODY AND METHOD FOR OPERATING THE HONEYCOMB BODY - A device for exhaust gas treatment in an exhaust system of an internal combustion engine, in particular in a motor vehicle, includes an electrically heatable honeycomb body through which an exhaust gas can flow. The honeycomb body is disposed in a casing tube and has at least one current-conducting structure with electric insulation for voltages greater than 24 V. A current-generating pulsed voltage is applied to the structure to heat the honeycomb body. It is thus possible for heating elements in the exhaust-gas flow to be powered by an on-board electrical system voltage of for example 48 V. A method for operating the honeycomb body is provided with which, even at operating voltages greater than 24 V, the generation of heat in the electrically heatable honeycomb body can be kept in a desired range by adjustment of a pulse width and/or repetition frequency of the pulsed voltage. | 04-24-2014 |
20140150412 | DEVICE FOR SUPPLYING LIQUID REDUCING AGENT AND MOTOR VEHICLE HAVING THE DEVICE - A device for supplying liquid reducing agent for an exhaust gas treatment device, includes at least a tank with an interior in which reducing agent can be stored, an intake in the interior, a delivery device situated in a separate chamber in a tank bottom of the tank, a line leading from the delivery device to the exhaust gas treatment device and passing through the tank bottom at the separate chamber, and a cleaning layer covering the intake. An intermediate space is formed between the intake and the cleaning layer and contains at least one sponge element which can absorb reducing agent and from which the delivery device can extract reducing agent through the intake. A motor vehicle having the device is also provided. | 06-05-2014 |
20140157761 | METHOD FOR REGULATING AN IONIZATION DEVICE IN AN EXHAUST-GAS AFTERTREATMENT APPARATUS AND MOTOR VEHICLE IN WHICH THE METHOD IS CARRIED OUT - A method for regulating an ionization device in an exhaust gas after-treatment device of an internal combustion engine, includes placing at least one cathode at a distance from an anode in the exhaust gas after-treatment device, applying a high voltage between the at least one cathode and the anode, predefining a first value for the high voltage, detecting a current generated by the high voltage between the at least one cathode and the anode and predefining a second value for the high voltage if the detected current exceeds a predefinable first current intensity for a predefinable number of times. A motor vehicle in which the method is carried out is also provided. | 06-12-2014 |
20140174058 | DEVICE FOR PROVIDING LIQUID REDUCING AGENT AND MOTOR VEHICLE HAVING THE DEVICE - A device for providing liquid reducing agent for an exhaust-gas treatment device includes a tank and a delivery unit with an intake or suction point in the tank at which reducing agent can be suctioned or drawn out of the tank. The intake point is covered by a separation layer in such a way that a closed intermediate space is formed between the intake point and the separation layer. The separation layer has a higher flow resistance to reducing agent in an outflow direction from the intermediate space into the tank than in an inflow direction from the tank into the intermediate space. A motor vehicle having the device is also provided. | 06-26-2014 |
20140178266 | DEVICE WITH A PARTICLE SCREEN FOR PROVIDING LIQUID REDUCING AGENT - A device for providing a liquid reducing agent includes a tank having an interior space, a vessel at least partly disposed in the inner space of the tank, the vessel being at least partly surrounded by a particle screen through which a liquid can flow, and a delivery unit located in the vessel and configured for delivering reducing agent from the tank, through the particle screen and then out to a take-off or delivery point for reducing agent. | 06-26-2014 |
20140209201 | MOUNTING HAVING AT LEAST ONE ELECTRODE AND EXHAUST LINE DEVICE HAVING AT LEAST ONE MOUNTING - A mounting includes at least one electrode producing electric fields in an exhaust gas line, a disk of electrically insulating material having inflow and outflow sides and openings for exhaust gas, and at least one electrical conductor fastened to and/or in the disk. The electrical conductor is covered by the electrically insulating material at least on the inflow side and in electrical contact with the electrodes extending toward the outflow side. Since the electrical conductor is completely surrounded by insulating material during operation, an area that must be covered by a soot layer for a leakage current to develop is increased. The leakage length increases and one or more electrodes are in the exhaust gas at the same time. The soot particles deposited on the mounting and the exhaust gas line, need to be removed less often. An exhaust line device having at least one mounting is also provided. | 07-31-2014 |
20140241951 | EXHAUST-GAS TREATMENT DEVICE - An exhaust-gas treatment device includes a honeycomb body wound and/or stacked with at least partially structured sheet-metal layers forming channels through which an exhaust gas can flow in axial direction from an inlet side to an outlet side. A first section of the sheet-metal layers ends flush at a first end surface associated with at least one of the sides and a second section of the sheet-metal layers ends at a second end surface associated with at least one of the sides. A spacing is provided between the first and second end surfaces because a first axial length of the first section is greater than a second axial length of the second section. The spacing forms a receptacle receiving a heating body, producing a simple electrically heatable exhaust-gas treatment device into which a heating body can be integrated during or after production of the honeycomb body. | 08-28-2014 |
20140245720 | METHOD FOR OPERATING A DOSING DEVICE AND MOTOR VEHICLE HAVING A DOSING DEVICE - A method for operating a dosing device for metering an additive to an exhaust-gas treatment device includes determining a dosing amount of additive required by the exhaust-gas treatment device in step a). Subsequently, in step b), an operating mode for the dosing device is determined by carrying out at least steps b.1) and b.2). In step b.1), at least one characteristic operating value of at least one component of the dosing device is provided being definitive of a degree of aging of the dosing device. In step b.2), an operating mode for the dosing device is set in dependence on the characteristic operating value from step b.1). In step c), the dosing device is operated with the set operating mode so that the dosing amount required in step a) is supplied to the exhaust-gas treatment device. A motor vehicle having a dosing device is also provided. | 09-04-2014 |
20140245723 | DELIVERY DEVICE FOR DELIVERING A LIQUID ADDITIVE OUT OF A TANK, METHOD THEREFOR AND MOTOR VEHICLE HAVING A DELIVERY DEVICE - A delivery device for delivering a liquid additive out of a tank to an exhaust-gas treatment device includes a delivery duct with an overall volume and a pump disposed in the delivery duct. The delivery duct has a flexible wall portion, downstream of the pump in a delivery direction, with an outer side of the flexible wall portion situated opposite the delivery duct and bearing against a stop when a pressure in the delivery duct lies in a predefined operating pressure range. A spring element which is disposed on the outer side is constructed to deform the flexible wall portion in such a way that the overall volume is reduced in size when the pressure in the delivery duct is lower than a threshold pressure. A method for compensating a formation of ice in a delivery device and a motor vehicle having a delivery device are also provided. | 09-04-2014 |
20140245726 | DELIVERY UNIT FOR DELIVERING A LIQUID ADDITIVE AND MOTOR VEHICLE HAVING A DELIVERY UNIT - A delivery unit for delivering a liquid additive from a tank into an exhaust gas treatment device includes at least a housing which can be mounted on the tank, and a component carrier which carries at least one pump and is fixed in the housing by a clamping plate. A motor vehicle having a delivery unit is also provided. | 09-04-2014 |
20140260212 | DEVICE FOR PROVIDING REDUCING AGENT AND MOTOR VEHICLE HAVING THE DEVICE - A device for providing reducing agent includes a tank, a delivery unit disposed at least partially in the tank and having a suction point through which the delivery unit can draw reducing agent out of the tank, and a filter covering the suction point. An intermediate space or chamber is formed between the delivery unit and the filter, and the filter is disposed on the delivery unit in such a way that it can perform a deflection movement away from the suction point if ice forms in the intermediate chamber. A motor vehicle having the device is also provided. | 09-18-2014 |
20140283505 | INJECTION DEVICE FOR METERING A LIQUID ADDITIVE, METHOD FOR FREEZING AN INJECTION DEVICE, METHOD FOR PRODUCING AN INJECTION DEVICE AND MOTOR VEHICLE - An injection device for the metering or addition of a liquid additive into an exhaust gas treatment device, includes an outlet region to be brought into contact with the exhaust gas treatment device, a connector region spaced apart from the outlet region and having a fluid-line connector, and a duct or channel for the additive extending from the connector region to the outlet region. A valve controls the metering or addition of the additive, and at least one heat-flow adjustment device defines a direction of freezing in the duct from the outlet region towards the connector region. A method for freezing an injection device, a method for producing an injection device and a motor vehicle are also provided. | 09-25-2014 |
20140290229 | SUPPORTING PIN FOR AN ELECTRICALLY HEATABLE HONEYCOMB BODY - A supporting pin for supporting an electrically heatable honeycomb body on a first honeycomb body includes a first end region, a second end region, an intermediate region, a core made of electrically non-conductive ceramic material and a metalized surface on at least one end region. The intermediate region is electrically non-conductive and has a length of at least 3 mm, preferably 5 to 15 mm. The supporting pin is particularly suitable for stabilizing electrically heatable honeycomb bodies in exhaust gas treatment systems for internal combustion engines, particularly for motor vehicles. When higher electrical voltages, such as 48 V, are used for electrically heatable honeycomb bodies, good electrical isolation is also assured in exhaust gas systems carrying soot particles with simultaneous safe support and suppression of vibrations. | 10-02-2014 |
20140298780 | DEVICE FOR EXHAUST-GAS AFTERTREATMENT HAVING A DOSING UNIT FOR AN EXHAUST-GAS AFTERTREATMENT AGENT AND MOTOR VEHICLE HAVING THE DEVICE - A device for the aftertreatment of an exhaust gas of an internal combustion engine flowing through an exhaust line includes at least one dosing unit disposed in an opening of an exhaust pipe of the exhaust line and configured to add an exhaust-gas aftertreatment agent into the exhaust line. The dosing unit is enclosed by a cooling jacket, through which the dosing unit is fastened in the opening of the exhaust pipe. The cooling jacket is at least partially enclosed by a space or chamber delimited at least by the cooling jacket, the exhaust pipe, and a cover plate. The cover plate is connected to the exhaust pipe and spaced apart from the cooling jacket or the dosing unit by a gap. A motor vehicle having the device is also provided. | 10-09-2014 |
20140338311 | METHOD FOR OPERATING A DOSING APPARATUS AND MOTOR VEHICLE HAVING A DOSING APPARATUS - A method for operating a dosing apparatus for providing a liquid additive includes providing the dosing apparatus with at least one pump for pumping the additive from a tank into a pressure accumulator, a dosing valve for providing additive present in the pressure accumulator in a dosed manner, and a return valve through which additive present in the pressure accumulator can be led back into the tank. A dosing demand is established, subsequently the pump is activated to build up a pressure in the pressure accumulator, then the pressure in the pressure accumulator is set to a desired metering pressure, and thereafter the liquid additive is dispensed by the dosing valve. A motor vehicle having a dosing apparatus is also provided. | 11-20-2014 |
20140338630 | DOSING VALVE FOR ADDITIVES AT RISK OF FREEZING, METHOD FOR PRODUCING A DOSING VALVE AND MOTOR VEHICLE - A dosing valve includes at least a valve housing with a duct, a valve body being movable in order to open and close the dosing valve and a spring exerting a spring force on the valve body and thus holding the valve body in a rest position. The spring is supported on at least one calibration body. The valve body, the spring and the at least one calibration body are disposed in the duct. The at least one calibration body is fastened in the valve housing at least by using a cohesive or material connection. A method for producing the dosing valve and a motor vehicle having the dosing valve are also provided. | 11-20-2014 |
20140366509 | METHOD FOR OPERATING AN EXHAUST-GAS TREATMENT DEVICE HAVING A HEATER AND MOTOR VEHICLE HAVING THE DEVICE - A method for operating an exhaust gas treatment device including an electric heater for heating an exhaust gas flow in the exhaust gas treatment device and/or a surface in the exhaust gas treatment device and a feed point for feeding an additive into the exhaust gas treatment device to impinge upon the electric heater, includes supplying additives to the feed point, determining an operational state of the exhaust gas treatment device, in which deposits can impinge upon the electric heater, using at least one state variable, determining a cycle frequency in dependence on the operating state when the operating state lies in a predetermined operating state range, and cyclically activating and deactivating the electric heater using the determined cycle frequency when the determined operating state lies in the predetermined operating state range. A motor vehicle having the exhaust-gas treatment device is also provided. | 12-18-2014 |
20140366512 | CONVEYING UNIT FOR A LIQUID ADDITIVE FOR EXHAUST GAS AFTER-TREATMENT, TANK FOR STORING LIQUID ADDITIVE, MOTOR VEHICLE HAVING THE CONVEYING UNIT AND METHOD FOR DETERMINING A LIQUID ADDITIVE QUANTITY IN A TANK - A conveying unit which can be mounted in a tank for conveying a liquid additive from the tank includes a filling level sensor which can emit and receive waves that are reflected back to the filling level sensor at a surface of liquid in the tank, so that a filling level measurement can be carried out by measuring the transit time of the waves. The conveying unit has at least one additional sensor device or sensor with which it is possible to determine if there is frozen additive in the tank. A tank for storing a liquid additive, a motor vehicle having the conveying unit and a method for determining a liquid additive quantity in a tank are also provided. | 12-18-2014 |
20140366736 | DEVICE FOR TREATING A GAS STREAM FLOWING RADIALLY OUTWARDLY FROM A CENTRAL AREA - A device for treating a gas stream, especially an exhaust-gas stream of an internal combustion engine, includes at least one radial chamber radially conducting the gas stream and extending substantially radially from a central region to an outer collecting chamber. First and second, preferably parallel, substantially disk-shaped walls delimit the chamber. Electrodes project from the first wall into the chamber. The first wall is formed of electrically insulating material having the electrodes fastened therein and electrically interconnected by electrical conductors in or on the insulating material. Two or more chambers may be disposed, axially in series, around the central region. Very effective treatment of exhaust gas with an electric field for ionization or generating a plasma can be provided over a relatively short structural length in a flow direction. Electric fields running transversely to the flow direction provide new possibilities for selecting various parameters of the treatment device. | 12-18-2014 |
20140373514 | APPARATUS FOR PROVIDING LIQUID ADDITIVE, METHOD FOR ASSEMBLING THE APPARATUS AND MOTOR VEHICLE HAVING THE APPARATUS - An apparatus for providing liquid additive includes a tank for the liquid additive which has at least one heat distribution structure for distributing heat in a first tank section. A delivery unit is inserted into the tank for removing the liquid additive from the tank. The delivery unit includes at least one heating device. The heating device of the delivery unit and the heat distribution structure of the tank are connected to each other by at least one thermal coupling. A method for assembling the apparatus and a motor vehicle having the apparatus are also provided. | 12-25-2014 |
20150013315 | DELIVERY UNIT FOR A LIQUID ADDITIVE WITH A TEMPERATURE SENSOR, METHOD FOR CHECKING THE OPERATING STATE OF A DELIVERY UNIT AND MOTOR VEHICLE HAVING A DELIVERY UNIT - A delivery unit for delivering a liquid additive in a motor vehicle, includes at least one temperature sensor for contactlessly measuring a temperature at least at one measurement point in the delivery unit. The temperature sensor and the measurement point have a spacing therebetween and a radiation channel which is free from fixtures is provided between the temperature sensor and the measurement point. A method for checking the operating state of a delivery unit and a motor vehicle having a delivery unit are also provided. | 01-15-2015 |
20150033712 | METHOD FOR DRAINING A DELIVERY UNIT FOR LIQUID ADDITIVE, DELIVERY UNIT AND MOTOR VEHICLE HAVING A DELIVERY UNIT - A method for draining a delivery unit for a liquid additive, in particular a urea-water solution, includes at least: a) producing an electrical connection by using a currentless switch which is constructed to produce an electrical connection when a temperature falls below a threshold temperature; and b) draining the delivery unit when, in step a), the electrical connection has been produced. The method can be used, in particular, in SCR systems for exhaust-gas aftertreatment for motor vehicles. A delivery unit and a motor vehicle having a delivery unit are also provided. | 02-05-2015 |
20150033713 | DEVICE FOR SUPPLYING A LIQUID ADDITIVE AND MOTOR VEHICLE HAVING THE DEVICE - A device for supplying a liquid additive for a motor vehicle includes a tank for storing the liquid additive and a delivery unit for delivering the liquid additive out of the tank. A sensor emits and receives waves and is configured to measure a fill level of the liquid additive in the tank by way of a propagation time measurement of the waves along a measurement path to a liquid surface in the tank and back to the sensor. The measurement path runs at least partially through a measurement duct. At least one back-flushing line ends in the measurement duct so that flushing of the measurement duct to the tank can be performed, in such a way that the measurement duct is kept clean and/or is cleaned. A motor vehicle having the device is also provided. | 02-05-2015 |
20150075141 | CONTAINER HAVING A HEATING DEVICE FOR A TANK FOR STORING A LIQUID ADDITIVE AND MOTOR VEHICLE HAVING A TANK - A container for a tank for storing a liquid additive includes a housing having a heater and at least one drivable apparatus for promoting convection in the housing. A motor vehicle includes a tank for storing a liquid additive and an exhaust gas system having a metering or adding device for the liquid additive. A container is inserted into the tank wall and a plurality of functional components is provided in the container for conveying the liquid additive from the tank through the container to the metering or adding device. | 03-19-2015 |