| Patents for F01N 9 - Electrical control of exhaust gas treating apparatus (7,942) |
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| 08/24/2000 | DE19907382A1 Engine catalyser temperture estimation method uses temperature model for calculating catalyst temperature in dependence on measured or calculated exhaust gas temperature |
| 08/22/2000 | US6107603 Device intended to detect fouling and to locally heat an electrical insulating medium |
| 08/17/2000 | DE19906287A1 Verfahren und Steuerung einer Brennkraftmaschine mit einem Abgasnachbehandlungssystems The method and controlling an internal combustion engine with an exhaust aftertreatment system, |
| 08/16/2000 | EP1028235A2 Method for controlling an internal combustion engine with an exhaust gas after-treatment system |
| 08/09/2000 | EP1026385A2 Internal combustion engine |
| 07/25/2000 | US6092367 Method and apparatus for metering the introduction of a reducing agent into the exhaust-gas or exhaust-air stream of a combustion installation |
| 07/19/2000 | EP1020217A2 Exhaust gas cleaning method, exhaust gas cleaning catalyst and exhaust gas cleaning device for internal combustion engine |
| 07/18/2000 | US6090172 Exhaust gas filtering process and unit with modulable heating |
| 07/11/2000 | US6085517 Process for controlling a fuel-oxygen ratio in exhaust gas upstream of a catalytic converter |
| 06/28/2000 | EP1013997A2 Internal combustion engine with combustion heater |
| 06/28/2000 | EP1013907A2 Control system of an exhaust gas treating device of an internal combustion engine |
| 06/21/2000 | DE19957715A1 Abgasausstoß-Steuerungsvorrichtung für eine Brennkraftmaschine Exhaust emission control device for an internal combustion engine |
| 06/21/2000 | CN1257435A Reducing NOx emissions from an engine by temperature-controlled urea injection |
| 05/25/2000 | WO2000029729A1 METHOD FOR MONITORING NOx STORAGE CATALYTIC CONVERTERS AND EXHAUST-GAS PURIFICATION DEVICE FOR CARRYING OUT SAID METHOD |
| 05/18/2000 | WO2000028200A1 METHOD FOR DETERMINING THE NOx CRUDE EMISSION OF AN INTERNAL COMBUSTION ENGINE OPERATED WITH AN EXCESS OF AIR |
| 05/18/2000 | WO2000028196A1 Integrated apparatus for removing pollutants from a fluid stream in a lean-burn environment with heat recovery |
| 05/18/2000 | DE19852240A1 Überwachungsverfahren für NOx-Speicherkatalysatoren und Abgasreinigungsvorrichtung zur Durchführung dieses Verfahrens Monitoring method for NOx storage catalysts, and exhaust gas purifying apparatus for performing this method |
| 05/18/2000 | CA2350027A1 Integrated apparatus for removing pollutants from a fluid stream in a lean-burn environment with heat recovery |
| 05/16/2000 | US6063350 Monitoring the quality, tempearture and level of urea solution, generating sensor signals, comparing with reference values, generating control signals, thus controlling flow of urea, passing exhasut gas throgh selective catalytic reactor |
| 05/11/2000 | DE19851319A1 Verfahren zum Bestimmen der NOx-Rohemission einer mit Luftüberschuß betreibbaren Brennkraftmaschine A method for determining the untreated NOx emissions can be operated with an excess air combustion engine |
| 05/03/2000 | CN1252120A Method and device for monitoring NOx accumulator |
| 04/25/2000 | US6052988 Apparatus for controlling the supply of electric power to electrically heated catalyst |
| 04/20/2000 | WO2000021881A1 REDUCING NOx EMISSIONS FROM AN ENGINE BY TEMPERATURE-CONTROLLED UREA INJECTION FOR SELECTIVE CATALYTIC REDUCTION |
| 04/19/2000 | EP0994243A2 Exhaust gas purifying device |
| 04/18/2000 | US6050087 Method and apparatus for diagnosing engine exhaust gas purification system |
| 04/18/2000 | US6050086 Exhaust emission control apparatus for internal combustion engine |
| 03/30/2000 | WO2000017499A1 Method and device for catalytically reducing emission concentrations in the exhaust gas of a combustion system |
| 03/30/2000 | DE19843960A1 Verfahren und Vorrichtung zur katalytischen Verringerung des Schadstoffgehalts im Abgas einer Verbrennungsanlage Method and apparatus for the catalytic reduction of pollutant content in the exhaust gas of an incinerator |
| 03/28/2000 | US6041592 Control system and method for an NOx accumulator |
| 03/22/2000 | EP0987407A1 Exhaust emission particulate remover and exhaust emission control device |
| 03/09/2000 | DE19836955A1 Verfahren zum Erkennen und Aufrechterhalten der Betriebsbereitschaft eines NO¶x¶-Speicherkatalysators A method for detecting and maintaining the operational readiness of a NO¶x¶ storage catalyst |
| 03/07/2000 | US6032461 Exhaust emission control apparatus for internal combustion engine |
| 02/29/2000 | US6029443 Catalyst with upstream cooling and downstream heating |
| 02/24/2000 | WO2000009870A1 METHOD FOR RECOGNIZING AND MAINTAINING THE OPERATIONAL CAPABILITY OF A NOx STORAGE CATALYTIC CONVERTER |
| 02/17/2000 | WO2000008313A1 Combustor for unspent exhaust from an internal combustion engine |
| 02/17/2000 | WO2000008311A1 Method and device for desulfurising a catalyst system |
| 02/17/2000 | DE19850757A1 Verfahren und Vorrichtung zur De-Sulfatierung einer Katalysatoreinrichtung Method and apparatus for de-sulfation a catalyst device |
| 02/10/2000 | DE19835748A1 Verfahren zur simulierten Bildung eines die momentane Katalysatortemperatur repräsentierenden Signals A method for forming a simulated the current catalyst temperature signal representing |
| 02/09/2000 | EP0978640A2 Process for simulated development of a signal representing the momentary temperature of a catalyst |
| 02/09/2000 | EP0805914B1 Process for regulating the fuel-oxygen ratio of exhaust gas upstream of a catalytic converter |
| 02/09/2000 | CN1244231A Control method and device for a combustion system, catalytic purification of exhaust gas from a combustion system, and the combustion system |
| 02/08/2000 | US6023401 Abnormality detecting device for exhaust secondary air supplying system |
| 02/08/2000 | US6021640 Exhaust gas purification device for an engine |
| 02/02/2000 | EP0975417A1 REDUCING NOx EMISSIONS FROM AN ENGINE BY TEMPERATURE-CONTROLLED UREA INJECTION |
| 01/27/2000 | DE19933988A1 Soot content within a particle filter, especially for a diesel engine, is derived from mathematical formulae relating filter differential pressure to a gas flow value and relating value to intake air and fuel quantities |
| 01/27/2000 | DE19833450A1 Control system for internal combustion engine |
| 01/26/2000 | EP0974002A1 PROCESS AND DEVICE FOR MONITORING A NOx ACCUMULATOR |
| 01/26/2000 | EP0733155B1 Improved particulate filter, and system and method for cleaning same |
| 01/25/2000 | US6017503 Emission from a combustion apparatus, e.g., internal combustion engine, by controlling accurately the rate of a ammonia and/or urea reducing agent introduced by measuring downstream with a sensor the concentration of ammonia and nox |
| 01/25/2000 | US6016654 Assembly for reducing the exhaust gas emissions of an internal combustion engine |
| 01/12/2000 | EP0971104A2 An exhaust gas purification device for an internal combustion engine |
| 01/11/2000 | US6012284 Engine exhaust gas purifying system |
| 01/05/2000 | EP0969186A2 A device for purifying the exhaust gas of an internal combustion engine |
| 01/05/2000 | CN1048070C Filter regeneration apparatus and method for internal combustion engine |
| 12/30/1999 | DE19827358A1 Soot particle sensor, e.g. for investigating diesel engine operation |
| 12/28/1999 | CA2064267C A filter regenerating apparatus for an internal combustion engine |
| 12/23/1999 | DE19827420A1 Controller managing fuel supply for exhaust system NOx storage unit regeneration, based on individual engine cycles |
| 12/22/1999 | EP0965734A2 Control strategy for NOx-accumulator |
| 12/21/1999 | US6003305 Method of reducing internal combustion engine emissions, and system for same |
| 12/21/1999 | US6003304 Generator power electrically heated catalyst system |
| 12/15/1999 | EP0678154B2 Exhaust filter backpressure indicator |
| 12/08/1999 | EP0962639A1 Method and apparatus to control the purging of sulphur oxides from an exhaust gas catalytic converter of an internal combustion engine |
| 12/08/1999 | EP0961871A1 Control method and device for a combustion system, catalytic purification of exhaust gas from a combustion system, and the combustion system |
| 12/07/1999 | US5996338 Exhaust gas purifying device for engine |
| 12/02/1999 | WO1999061770A1 METHOD FOR CHECKING THE EFFICIENCY OF AN NOx ACCUMULATION CATALYST |
| 12/02/1999 | DE19823923A1 Reduction of nitrogen oxide in exhaust gas from internal combustion engines |
| 12/02/1999 | DE19823921A1 Verfahren zur Überprüfung des Wirkungsgrades eines NOx-Speicherkatalysators Method for checking the efficiency of a NOx storage catalytic converter |
| 11/30/1999 | US5994787 Control system for a power supply changeover switch |
| 11/25/1999 | WO1999060255A1 Exhaust system |
| 11/25/1999 | WO1999047795A3 Method and device to monitor the functioning of a catalyst in an internal combustion engine |
| 11/23/1999 | US5987977 Device for determining an abnormal degree of deterioration of a catalyst |
| 11/23/1999 | US5987884 Exhaust gas purification device |
| 11/10/1999 | CN1234473A Operation method of waste gas treatment apparatus containing sulfur-collecting agent and oxynitride storage catalyst |
| 11/09/1999 | US5979157 Method and a device for purifying exhaust gas of an internal combustion engine |
| 11/04/1999 | DE19817650A1 Verfahren und Vorrichtung zur Regelung der Temperatur einer Abgasbehandlungsanordnung Method and apparatus for controlling the temperature of an exhaust gas treatment arrangement |
| 11/03/1999 | EP0953737A1 Process and device for the local and controlled regeneration of a particles filter |
| 11/02/1999 | US5976475 Reducing NOx emissions from an engine by temperature-controlled urea injection for selective catalytic reduction |
| 11/02/1999 | US5974793 Exhaust gas purification device for an internal combustion engine |
| 10/27/1999 | EP0952319A2 Method and apparatus for temperature regulation of an exhaust gas treatment apparatus |
| 10/26/1999 | US5972075 Purifier having filter element and a flow rate of preheated regeneration air supplied to the filter element adjusted in response to measured pressure difference of air upstream of filter; accuracy |
| 10/21/1999 | DE19816175A1 Verfahren zur Überprüfung der Funktionstüchtigkeit eines Stickoxid-Speicherkatalysators A method for checking the function of a nitrogen oxide storage catalytic converter |
| 10/20/1999 | EP0950801A1 Process for detecting the deterioration of a nitrogen oxide adsorbing catalyst |
| 10/19/1999 | US5966931 Power supply control system for an electrically heated catalytic converter |
| 10/14/1999 | WO1999051862A1 Exhaust emission particulate remover and exhaust emission control device |
| 10/14/1999 | CA2292949A1 Exhaust emission particulate remover and exhaust emission control device |
| 10/13/1999 | EP0948987A1 Exhaust gas purification method and apparatus therefor |
| 10/12/1999 | US5964088 Device for purifying exhaust gas of engine |
| 10/07/1999 | DE19913949A1 Mixture control system for lean burn engine consuming sulfur-containing fuel, used with nitrogen oxides storage catalyst |
| 09/30/1999 | WO1999049190A1 Method and arrangement for control of air-fuel ratio of combustion engine |
| 09/30/1999 | DE19912833A1 System controlling air fuel ratio of lean burn engine with NOx storage catalyst |
| 09/30/1999 | DE19813654A1 Verfahren zum Betreiben einer Abgasreinigungsanlage enthaltend eine Schwefelfalle und einen Stickoxid-Speicherkatalysator Method for operating an exhaust gas purification system containing a sulfur trap and a nitrogen oxides storage catalyst |
| 09/29/1999 | EP0945608A2 Process for operating an exhaust gas purification apparatus comprising a sulfur-trap and a nitrogen oxide storage catalytic converter |
| 09/29/1999 | EP0695396B1 Emission control device and method |
| 09/28/1999 | US5956941 Method and system for estimating a midbed temperature of a catalytic converter |
| 09/28/1999 | US5956940 Method and apparatus for monitoring deterioration of internal combustion engine exhaust gas purifier |
| 09/27/1999 | CA2267010A1 Process for operating an exhaust gas treatment unit |
| 09/23/1999 | WO1999047795A2 Method and device to monitor the functioning of a catalyst in an internal combustion engine |
| 09/23/1999 | DE19811574A1 Vehicle internal combustion (IC) engine catalyst functionability monitoring method |
| 09/23/1999 | DE19810483A1 Offset determination of hydrocarbon or nitrogen oxide sensor in catalyst-fitted engine exhaust system |
| 09/22/1999 | EP0943786A2 Method to control the exhaust gas treating of a direct injection Otto engine and of a lean-burn engine |