| Patents for F01N 9 - Electrical control of exhaust gas treating apparatus (7,942) |
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| 08/05/1998 | EP0766780B1 Method of controlling the electric heating of a catalytic converter |
| 08/04/1998 | US5787705 Catalyst diagnostic |
| 07/21/1998 | US5783990 Method of detecting and documenting exhaust-gas relevant malfunctions of a vehicle having an internal combustion engine utilizing onboard means |
| 07/21/1998 | US5782087 Device for purifying exhaust gas of an engine |
| 07/15/1998 | EP0852662A2 Process and device for reacting a pollutant in an exhaust gas on a catalyst |
| 07/15/1998 | EP0852661A2 Process and device for metering the introduction of a reducing agent into the waste gas or air stream of a combustion unit |
| 07/14/1998 | US5778667 Method and a device for purifying combustion exhaust gas |
| 06/25/1998 | WO1998027322A1 METHOD OF DE-SULPHURATING ENGINE EXHAUST NOx TRAPS |
| 06/24/1998 | EP0849441A1 Control strategy for NOx-accumulator |
| 06/09/1998 | US5763771 In a motor vehicle |
| 06/04/1998 | DE19648427A1 Controlling temp. of catalyser for internal combustion engine |
| 05/27/1998 | EP0844374A2 System for diagnosing deterioration of catalyst |
| 05/27/1998 | EP0844373A1 Exhaust gas purification system of internal combustion engine |
| 05/19/1998 | US5753188 Apparatus for purifying the exhaust gas of diesel engines |
| 05/19/1998 | US5752382 Device for determining an abnormal degree of deterioration of a catalyst |
| 05/13/1998 | EP0841475A1 Process and unit for the filtration of exhaust gases with adjustable heating |
| 05/06/1998 | EP0839996A2 Exhaust gas purifying device for engine |
| 05/06/1998 | EP0839994A2 Process for electrically heating a catalyst |
| 05/05/1998 | US5746053 Apparatus for controlling power supplied to an electrically heated catalyst attached to an exhaust gas passage of an internal combustion engine |
| 05/05/1998 | US5746049 Method and apparatus for estimating and controlling no x trap temperature |
| 04/28/1998 | US5743084 Method for monitoring the performance of a nox trap |
| 04/22/1998 | EP0837234A1 Method and system for estimating a midbed temperature of a catalytic converter |
| 04/21/1998 | US5740669 Exhaust gas purification device for an engine |
| 04/14/1998 | US5738832 Exhaust gas purifying apparatus |
| 04/07/1998 | US5735121 Air pump abnormality-detecting system for internal combustion engines |
| 04/02/1998 | WO1998013589A1 Secondary-air system for an internal combustion engine |
| 04/02/1998 | DE19741194A1 Fault detection apparatus for changeover switch |
| 04/02/1998 | DE19741193A1 Control system for power supply changeover switch |
| 03/31/1998 | US5732550 Current supply control system of electrically heated catalytic converter of internal combustion engine |
| 03/31/1998 | US5732549 In an exhaust system of a motor vehicle |
| 03/26/1998 | DE19737824A1 Exhaust gas cleanser for IC engine or burner |
| 03/25/1998 | EP0831209A1 A device for purifying the exhaust gas of an internal combustion engine |
| 03/24/1998 | US5729971 Which purifies exhaust of an engine |
| 03/19/1998 | DE19740971A1 Electrical power-supply control device for motor vehicle IC engine electrically heatable catalytic converter |
| 03/19/1998 | DE19739751A1 Exhaust gas cleaning system for IC engine esp diesel engine |
| 03/17/1998 | US5727384 Engine management system |
| 03/10/1998 | US5724810 Controlling apparatus for introduction air into an exhaust pipe of an internal combustion engine |
| 03/10/1998 | US5724808 Air-fuel ratio control system for internal combustion engines |
| 03/04/1998 | EP0826868A1 Method to purify the exhaust gas of an internal combustion engine |
| 03/03/1998 | US5722236 Adaptive exhaust temperature estimation and control |
| 02/18/1998 | EP0824182A1 A method and a device for purifying exhaust gas of an internal combustion engine |
| 02/10/1998 | US5716586 Exhaust gas purifier |
| 02/10/1998 | US5715677 Controlling the absorption, decomposition, oxidation by a valve mechanical switches |
| 02/10/1998 | US5715676 Method and apparatus for monitoring the starting behavior of a catalytic conversion system in an automotive vehicle |
| 02/05/1998 | WO1998005005A1 Process for determining and/or paying a compensation for pollutants in exhaust fumes and motor vehicle with a set working according to this process |
| 02/04/1998 | EP0822323A1 An exhaust emission purification apparatus for an internal combustion engine |
| 02/03/1998 | US5713198 Exhaust gas-purifying device for internal combustion engines |
| 01/29/1998 | DE19630092A1 Verfahren zum Erfassen und/oder zur Zahlung eines Entgelts für Abgas-Schadstoffe und Kraftfahrzeug mit einem nach diesem Verfahren arbeitenden Abgas-Schadstoff-Set A method for detecting and / or pay a fee for exhaust pollutants and motor vehicle with an operating according to this method, exhaust emission Set |
| 01/28/1998 | EP0820799A2 System for and method of removing NOx from exhaust gases |
| 01/27/1998 | US5711149 Device for purifying the exhaust gas of a diesel engine |
| 01/22/1998 | DE19730335A1 Filter for removing particulates from diesel engine exhaust gases |
| 12/29/1997 | EP0814241A1 A method and a device for purifying combustion exhaust gas |
| 12/29/1997 | EP0813648A1 Device and method for heating a catalytic converter for the exhaust of an internal-combustion engine |
| 12/04/1997 | DE19722147A1 Catalytic nitrogen oxide suppression system for internal combustion engines |
| 11/26/1997 | EP0809000A2 An exhaust gas purification device for an internal combustion engine |
| 11/12/1997 | EP0805914A2 Process for regulating the fuel-oxygen ratio of exhaust gas upstream of a catalytic converter |
| 10/23/1997 | DE19615830A1 Vehicle IC engine catalytic converter heating control |
| 10/23/1997 | DE19615547A1 Controlling hydrocarbon enrichment of diesel engine exhaust gas |
| 10/22/1997 | EP0802315A2 An exhaust gas purification device for an internal combustion engine |
| 10/21/1997 | US5678402 Air-fuel ratio control system for internal combustion engines and exhaust system temperature-estimating device applicable thereto |
| 10/14/1997 | US5675968 Secondary air control apparatus for exhaust gas purifier |
| 10/14/1997 | US5675967 Method and arrangement for evaluating the operability of a catalytic converter |
| 10/09/1997 | DE19629163C1 Diesel engine operation to suppress nitrogen oxides emission |
| 09/24/1997 | EP0796983A1 Device for purifying exhaust gas of engine |
| 09/24/1997 | EP0796390A1 Process and device for monitoring the operation of a catalyst |
| 09/23/1997 | US5670746 Structure of electrode unit |
| 09/18/1997 | DE19609923A1 Overheating protection monitoring method e.g. for IC engine operated at full load |
| 09/16/1997 | US5666804 Secondary air supplying apparatus for internal combustion engine and air heating apparatus thereof |
| 09/10/1997 | EP0736136B1 Method for testing the convertability of a catalytic converter |
| 09/04/1997 | DE19607461A1 Detecting and documenting malfunctions related to exhaust gas of vehicle fitted with IC engine |
| 09/02/1997 | US5662869 Catalytic |
| 08/19/1997 | US5657625 Apparatus and method for internal combustion engine control |
| 08/12/1997 | US5655364 Control system for an internal combustion engine |
| 07/31/1997 | WO1997015750A3 Process for regulating the fuel-oxygen ratio of exhaust gas upstream of a catalytic converter |
| 07/30/1997 | EP0560991B1 Device for purifying exhaust of internal combustion engine |
| 07/29/1997 | US5651248 Diesel particulate filter apparatus |
| 07/24/1997 | DE19701355A1 Catalytic converter for exhaust gases in vehicle IC engine |
| 07/23/1997 | EP0785105A2 Automotive onboard load control apparatus and method |
| 07/22/1997 | US5649420 System for diagnosing deterioration of catalyst |
| 07/15/1997 | US5647669 Method for generating a simulated signal relating to a temperature in the exhaust system of an internal combustion engine |
| 07/15/1997 | US5647668 Method for generating a signal relating to a temperature in the exhaust system of an internal combustion engine |
| 07/15/1997 | US5647205 Process for checking the conversion capability of a catalyst |
| 07/08/1997 | US5645745 Circuit and control method for electrically heating a catalyst |
| 07/01/1997 | US5643536 Method and apparatus for metering a reagent into a flowing medium |
| 06/26/1997 | DE19645202A1 Monitoring conversion rate of exhaust gas catalytic converter for IC engine with electronic controller |
| 06/26/1997 | DE19548226A1 Fuel-burning heater e.g. for motor vehicle, with fuel metering pump and combustion air blower |
| 06/26/1997 | DE19547646A1 Method of controlling an IC engine |
| 06/19/1997 | WO1997015468A3 Method and device for detecting and documenting damage to catalytic converters |
| 06/12/1997 | DE4498478C2 Temperature estimating method for catalyst of vehicle |
| 06/11/1997 | EP0778400A1 Apparatus for controlling power supplied to an electrically heated catalyst attached to an exhaust gas passage of an internal combustion engine |
| 06/04/1997 | EP0636207B1 Adaptive multifrequency reactive muffler |
| 06/03/1997 | US5634331 Exhaust gas-purifying device for internal combustion engines |
| 06/03/1997 | US5634330 Process for checking a burner system for heating a catalytic converter |
| 05/28/1997 | EP0689641B1 Process and device for monitoring the operation of a catalytic converter |
| 05/15/1997 | WO1997017532A1 Method and device for purifying exhaust gas of engine |
| 05/15/1997 | DE19646151A1 Exhaust treatment for IC engine |
| 05/15/1997 | DE19645577A1 Exhaust quality monitor for IC engine |
| 05/14/1997 | EP0773354A1 Device for purifying exhaust gas of engine |
| 05/13/1997 | US5628186 Method and apparatus for controlled introduction of a reducing agent into a nitrogen oxide-containing exhaust gas |
| 05/09/1997 | WO1997016632A1 Exhaust emission control apparatus for internal combustion engine |