| Patents for F01N 11 - Monitoring or diagnostic devices for exhaust-gas treatment apparatus (7,022) |
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| 12/29/2004 | EP1364111B1 Method and device for detecting a temperature variable |
| 12/29/2004 | EP1364110B1 Method and device for controlling an internal combustion engine |
| 12/29/2004 | CA2527006A1 System and method of controlling reductant addition |
| 12/28/2004 | US6835357 Exhaust emission control system for internal combustion engine |
| 12/28/2004 | US6834497 Exhaust gas purifying device for engine |
| 12/23/2004 | US20040260452 Filter control method and device |
| 12/23/2004 | US20040256500 Reduction in hydrocarbon emission via spray pattern control through fuel pressure control in fuel injection systems |
| 12/23/2004 | US20040255655 Device and method for determining the state of ageing of an exhaust-gas catalytic converter |
| 12/23/2004 | DE102004021193A1 Verfahren und Vorrichtungen zur Diagnose von Abgasnachbehandlungssystemen Methods and apparatus for diagnosing engine system |
| 12/23/2004 | DE102004013604A1 Verfahren zum Schätzen einer Nox-Absorptionsmenge A method for estimating a NOx absorption amount |
| 12/22/2004 | EP1489414A1 Method for estimating the sulfur content in the fuel of an internal combustion engine |
| 12/22/2004 | EP1489413A1 Method for estimating the sulfur content in the fuel of an internal combustion engine |
| 12/22/2004 | EP1214505B1 Method for operating an internal combustion engine |
| 12/22/2004 | CN2665369Y Four-stroke petrol engine |
| 12/22/2004 | CN1181259C Tester for catalytic cleaner activity of motorcycle tail gas |
| 12/21/2004 | US6833272 SCR (selective catalytic reaction processes) |
| 12/16/2004 | WO2004109096A1 Reduction in hydrocarbon emission via spray pattern control through fuel pressure control in fuel injection systems |
| 12/16/2004 | WO2004109072A1 Method and device for monitoring of a catalyst |
| 12/16/2004 | WO2004109061A1 Method and apparatus for determining the activity and aging behavior of a catalyst |
| 12/16/2004 | US20040250609 Diagnosis system of exhaust aftertreatment apparatus for internal combustion engine |
| 12/16/2004 | US20040250532 Exhaust gas purifying apparatus and method for internal combustion engine |
| 12/16/2004 | US20040250531 Method for estimating the degradation of the trapping capacity of NOx-Trap type catalytic converter |
| 12/16/2004 | DE10324165A1 Particle filter system, in the exhaust pipe from a vehicle diesel motor, has an air gap between the inner and outer housing sections linked to a pressure difference sensor to give the regeneration efficiency and/or time point |
| 12/16/2004 | DE10323979A1 Exhaust treatment device for internal combustion engine of motor vehicle |
| 12/16/2004 | CA2527593A1 Method and apparatus for determining the activity and aging behavior of a catalyst |
| 12/14/2004 | US6830043 Secondary air supply abnormality detection system |
| 12/14/2004 | US6829889 Exhaust gas cleaning device for internal combustion engine |
| 12/14/2004 | US6829885 Nox trap efficiency |
| 12/14/2004 | CA2322915C Exhaust emission control system for internal combustion engine |
| 12/09/2004 | WO2004106706A1 Method for accelerated aging of catalytic converters incorporating engine cold start simulation |
| 12/09/2004 | WO2004106703A1 Exhaust gas cleaning system |
| 12/09/2004 | US20040249986 Control unit for vehicle and total control system therefor |
| 12/09/2004 | US20040249556 Engine control and catalyst monitoring based on estimated catalyst gain |
| 12/09/2004 | US20040244473 Failure diagnostic system for exhaust pressure increasing device |
| 12/09/2004 | US20040244364 Engine control and catalyst monitoring with downstream exhaust gas sensors |
| 12/09/2004 | US20040244363 Fuel/air ratio feedback control with catalyst gain estimation for an internal combustion engine |
| 12/09/2004 | US20040244361 Estimating method of NOx occlusion amount |
| 12/09/2004 | DE10323247A1 Verfahren zum Betreiben eines Antriebssystems aus einem Dieselmotor mit einem Dieseloxidationskatalysator zur Abgasreinigung A method of operating a drive system of a diesel engine with a diesel oxidation catalyst for exhaust gas purification |
| 12/09/2004 | DE10322149A1 Verfahren zum Betreiben eines Katalysators, welcher Komponenten zur Speicherung von Kohlenwasserstoffen enthält A method of operating a catalyst, which contains components for storing hydrocarbons |
| 12/09/2004 | DE102004019957A1 Vorrichtung zur Bestimmung von Anomalien in einem Sekundärluftsystem Apparatus for determining anomalies in a secondary air system |
| 12/07/2004 | US6828156 Evaluating method for NOx eliminating catalyst, an evaluating apparatus therefor, and an efficiency controlling method therefor |
| 12/07/2004 | US6826902 Method and apparatus for estimating oxygen storage capacity and stored NOx in a lean NOx trap (LNT) |
| 12/02/2004 | WO2004103528A1 Method of operating a system comprising a diesel engine and a catalyst for exhaust gas purification |
| 12/02/2004 | US20040237636 Method for drive cycle simulation using non-engine based test system |
| 12/02/2004 | US20040237513 System for controlling particulate filter temperature |
| 12/02/2004 | US20040237508 Hydrocarbon adsorbent state monitoring device |
| 12/01/2004 | EP1482143A2 Method and apparatus for testing catalytic converter durability |
| 12/01/2004 | EP1482142A2 Method and apparatus for testing catalytic converter durability |
| 12/01/2004 | EP1482138A1 Exhaust emission control system, method of calculating pressure loss of filter, and method of manufacturing filter |
| 12/01/2004 | EP1224385B1 METHOD FOR DIAGNOSING THE LEVEL OF DETERIORATION OF AN NOx CATALYST LOCATED IN THE EXHAUST CHANNEL OF AN INTERNAL COMBUSTION ENGINE |
| 11/30/2004 | US6823722 Adsorbent state determining apparatus |
| 11/30/2004 | US6823665 Exhaust gas purification device |
| 11/30/2004 | US6823658 Exhaust gas purifying apparatus for an internal-combustion engine |
| 11/25/2004 | WO2004101979A1 Catalyst degradation suppression device for internal combustion engines |
| 11/25/2004 | WO2004101964A1 Method of operating a catalyst which includes components for storing hydrocarbons |
| 11/25/2004 | US20040231324 Exhaust gas purification device |
| 11/25/2004 | US20040231322 Deteriorated state evaluation device of exhaust emission control equipment |
| 11/25/2004 | DE10318214A1 Process to determine the age-condition of a nitrogen oxide storage catalytic converter by comparison of de-toxified unit with original value |
| 11/25/2004 | DE10318213A1 Regenerationsverfahren für einen Speicherkatalysator einer Brennkraftmaschine Regeneration method for a storage catalyst of an internal combustion engine |
| 11/25/2004 | DE102004019864A1 Vorrichtung zur Bestimmung von Anomalien in einem Sekundärluftsystem Apparatus for determining anomalies in a secondary air system |
| 11/24/2004 | EP1478831A1 Control device and control method for internal combustion engine |
| 11/23/2004 | US6820413 State determining apparatus for exhaust gas purifier |
| 11/18/2004 | US20040230366 Device and method for estimating catalytic temperature |
| 11/18/2004 | DE10319664A1 Sensor zur Detektion von Teilchen Sensor for detecting particles |
| 11/18/2004 | DE10319224A1 Verfahren zum Betreiben einer Brennkraftmaschine insbesondere eines Kraftfahrzeugs A method of operating an internal combustion engine in particular of a motor vehicle |
| 11/18/2004 | DE10316806A1 System for monitoring the nitrogen oxide emissions during operation of an IC engine, comprises nitrogen oxide sensor arranged after catalyst in direction of the exhaust gas flow |
| 11/18/2004 | DE102004010339A1 Schleifkontaktaufbau mit hoher Haltbarkeit Sliding contact structure with high durability |
| 11/17/2004 | EP1173665B1 Engine exhaust purification device |
| 11/17/2004 | CN1546848A Catalytic cleaner matching method for motorcycle |
| 11/17/2004 | CN1546847A Catalytic cleaner matching method for motorcycle |
| 11/17/2004 | CN1176299C Catalytic cleaner matching method for motorcycle |
| 11/11/2004 | WO2004097400A1 Method and apparatus for analysing particulates |
| 11/11/2004 | WO2004097392A1 Sensor for detecting particles |
| 11/11/2004 | WO2004097193A2 Method for operating an internal combustion engine, particularly of a motor vehicle |
| 11/11/2004 | US20040221571 Diesel aftertreatment systems |
| 11/11/2004 | DE10236786A1 Pre-heating diesel engine with simultaneous pre-heating of oxidation catalyzer, cleaning particle filter involves |
| 11/10/2004 | CN1175171C Method for operating accumulator-type catalytic converter of IC engine |
| 11/04/2004 | US20040216614 Device and method for determining a malfunction in a filter |
| 11/04/2004 | DE10316810A1 Controlling diesel engine soot filter regeneration involves determining downstream sulfur dioxide concentration before altering regeneration rate |
| 11/04/2004 | DE10316809A1 Diagnosis of diesel engine soot filter state involves determining filter loading from difference in sulfur concentrations measured upstream and downstream of filter |
| 11/04/2004 | DE102004017522A1 Computeralgorithmus zum Schätzen der Regenerationsgeschwindigkeiten von Partikelfiltern Computer algorithm for estimating the regeneration rates of particle filters |
| 11/04/2004 | DE102004017274A1 Verbesserte Diagnose eines mehrreihigen, katalytischen Abgassystems Improved diagnosis of broad, catalytic exhaust system |
| 11/04/2004 | DE102004016948A1 Verfahren und Vorrichtung zum Überwachen des Wirkungsgrades eines Katalysators und der Leistung eines auslassseitigen Sauerstoffsensors A method and apparatus for monitoring the efficiency of a catalyst and the performance of an exhaust-side oxygen sensor |
| 11/03/2004 | EP1473448A1 Exhaust control device of internal combustion engine |
| 11/03/2004 | EP1303685B1 Exhaust gas purification device |
| 11/03/2004 | CN1542264A Exhaust gas purifying apparatus and method for internal combustion engine |
| 11/02/2004 | US6812029 Evaluating nitrogen oxide (nox) eliminating catalyst first and subsequently elevating a temperature of the nox eliminating catalyst or increasing an amount of hydrocarbon in response to maintain catalytic efficiency |
| 11/02/2004 | US6810659 Method for determining emission control system operability |
| 10/28/2004 | WO2004092555A1 Method and device for estimating the thermal state of a catalytic nitrogen oxide trap installed in the exhaust system of an internal combustion engine |
| 10/28/2004 | US20040211170 Anomaly judgment apparatus for secondary air supply system |
| 10/28/2004 | US20040211169 Anomaly judgment apparatus for secondary air supply system |
| 10/28/2004 | US20040211159 Exhaust gas cleaner |
| 10/27/2004 | EP1471222A1 Regeneration method for a storage catalyst of an internal combustion engine |
| 10/27/2004 | EP1471221A2 Catalyst deterioration detection device for internal combustion engine |
| 10/27/2004 | EP1471220A2 Catalyst deterioration detection device for internal combustion engine |
| 10/27/2004 | EP1471219A1 Exhaust gas cleaning system and SOx poisoning recovery method for internal combustion engine |
| 10/26/2004 | US6807807 Exhaust gas purifying apparatus and exhaust gas purifying method for an internal combustion engine |
| 10/26/2004 | US6807806 Diagnostic equipment for an exhaust gas cleaning apparatus |
| 10/21/2004 | US20040210378 Method for monitoring the light-off performance of an exhaust gas catalytic converter system |
| 10/21/2004 | US20040206070 Exhaust gas purifying system for internal combustion engine |