| Patents for F01N 11 - Monitoring or diagnostic devices for exhaust-gas treatment apparatus (7,022) |
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| 12/05/2001 | EP1159516A1 Method for operating an internal combustion engine, in particular of a motor vehicle |
| 12/04/2001 | US6324893 Diagnostic apparatus and method for adsorbent |
| 11/29/2001 | WO2001034960A3 Method of monitoring the exhaust catalyst of an internal combustion engine |
| 11/28/2001 | EP1158146A2 Method for operating an exhaust gas cleaning device in a spark-ignition engine |
| 11/22/2001 | DE10064279A1 Exhaust gas emission control device comprises nitrogen oxides absorption device, control device, nitrogen oxides absorption device deterioration determining device, device for shortening operation time and blocking device |
| 11/22/2001 | DE10025034A1 Operation of petrol engine with new three-way catalyst having leading and trailing lambda sensors, avoids monitoring with second sensor until its rich-running output voltage reduces |
| 11/22/2001 | DE10024914A1 Checking exhaust catalyst system functionality using exhaust gas tester, suddenly increases engine revolutions to enrich exhaust gas and measure catalyst response |
| 11/22/2001 | DE10022958A1 Gas sensor comprises metallic housing and hollow screw, with conically shaped surface on outside of housing |
| 11/15/2001 | WO2001086273A1 Gas sensor |
| 11/15/2001 | WO2001086124A1 A method of controlling the concentration of nitrogen oxides, hydrocarbons and carbon monoxide in conjunction with the cleansing of emission gases |
| 11/14/2001 | EP1154131A2 Exhaust gas purifying device for internal combustion engine |
| 11/13/2001 | US6314723 Method of checking the functional capability of a catalytic converter |
| 11/08/2001 | WO2001083088A1 Device and method for reduction of a gas component in an exhaust gas flow of a combustion engine |
| 11/08/2001 | US20010037642 Catalyst deterioration detecting apparatus and method for use with vehicles |
| 11/07/2001 | EP1152137A1 Method for detecting the state of an engine exhaust gas catalyst |
| 11/07/2001 | EP1152136A1 Apparatus and method to detect the degradation of a catalytic converter |
| 11/06/2001 | US6311481 Catalyst deterioration detecting apparatus for internal combustion engine |
| 11/01/2001 | US20010035007 Diagnostic system for monitoring catalyst operation using arc length ratio |
| 10/31/2001 | EP1149724A1 Catalyst deterioration detecting apparatus and method for use with vehicles |
| 10/31/2001 | DE10064278A1 Exhaust gas emissions controller comprises nitrogen oxides absorber, normal operating controller, nitrogen oxides absorber deterioration determining device, and nitrogen oxides emissions increaser |
| 10/31/2001 | DE10020199A1 Temperature measuring device for motor car catalytic converters based on thermoelectric wires set at intervals along device length |
| 10/31/2001 | DE10014239A1 Monitoring the function of a three-way catalyst in the exhaust gas channel of IC engine comprises acquiring the size of the nitrogen oxides signal within the lambda region, and comparing with threshold values |
| 10/30/2001 | US6309536 Polllution control for internal combustion engine |
| 10/30/2001 | US6308515 Method and apparatus for accessing ability of lean NOx trap to store exhaust gas constituent |
| 10/25/2001 | US20010033815 Process for checking the operability of an exhaust gas purification catalyst |
| 10/25/2001 | US20010032456 Exhaust gas purifier for internal combustion engine |
| 10/25/2001 | DE10017940A1 Verfahren zur Überprüfung der Funktionstüchtigkeit eines Stickoxid-Speicherkatalysators A method for checking the function of a nitrogen oxide storage catalytic converter |
| 10/18/2001 | WO2001077503A1 Method for diagnosing an exhaust gas cleaning system of a lambda-controlled internal combustion engine |
| 10/17/2001 | EP1146208A2 Device for detecting deterioration of NOx absorbent |
| 10/17/2001 | EP1146207A2 Process for detecting the deterioration of a nitrogen oxide adsorbing catalyst |
| 10/17/2001 | EP1144828A1 Method for operating an internal combustion engine |
| 10/16/2001 | US6301881 Apparatus and method for diagnosis of catalyst performance |
| 10/11/2001 | US20010028868 Air pollution control |
| 10/11/2001 | DE10114456A1 Procedure for coordination of exhaust relevant measures with direct fuel injected internal combustion engine entails determining by use of measuring, evaluating and control equipment the state of NOx storage catalyser |
| 10/09/2001 | US6298729 Catalytic converter testing |
| 10/04/2001 | US20010025484 Catalyst state detector for exhaust gas purifying catalyst |
| 10/04/2001 | EP1137592A1 REDUCING NO x? EMISSIONS FROM AN ENGINE BY TEMPERATURE-CONTROLLED UREA INJECTION FOR SELECTIVE CATALYTIC REDUCTION |
| 10/02/2001 | US6295807 System for detecting deterioration of catalyst for purifying exhaust gas |
| 10/02/2001 | US6295806 Catalyst temperature model |
| 09/27/2001 | US20010023584 Engine exhaust purification device |
| 09/27/2001 | DE10013893A1 Verfahren zur Überprüfung der Funktionstüchtigkeit eines Abgasreinigungskatalysators Procedures to verify the functionality of an exhaust gas purifying catalyst |
| 09/26/2001 | EP1136671A1 Method for examining the performance of exhaust gas catalyst |
| 09/26/2001 | EP1136670A2 Monitoring device and method of a 3-way catalyst in the exhaust pipe of an internal combustion engine |
| 09/26/2001 | CN1314544A Method for detecting adaptivity of waste gas purifying catalyst |
| 09/25/2001 | US6293093 Method and system for directly monitoring the efficiency of a conditioning catalyst having negligible oxygen storage capacity |
| 09/20/2001 | US20010022082 Engine exhaust purification device |
| 09/20/2001 | DE10107680A1 Motor-Abgasreinigungssystem Engine emission control system |
| 09/19/2001 | EP1134378A2 Method for determining emission control system operability |
| 09/19/2001 | EP1134377A2 Method and apparatus for accessing ability of lean NOx trap to store exhaust gas constitutent |
| 09/19/2001 | EP1134372A2 Method for improved performance of a vehicle |
| 09/13/2001 | DE4308180C2 Verfahren zum Aufheizen eines Abgaskatalysators in Kraftfahrzeugen Method for heating a catalytic converter in motor vehicles |
| 09/12/2001 | EP1132589A1 Catalyst state detector for exhaust gas purifying catalyst |
| 09/12/2001 | EP1131544A1 METHOD FOR MONITORING NOx STORAGE CATALYTIC CONVERTERS AND EXHAUST-GAS PURIFICATION DEVICE FOR CARRYING OUT SAID METHOD |
| 09/11/2001 | US6286993 Method for forming a signal representing the instantaneous temperature of a catalytic converter |
| 09/05/2001 | EP1130229A1 System to regenerate an exhaust particle filter in a diesel engine |
| 09/05/2001 | EP1130227A1 System to regenerate an exhaust particle filter in a diesel engine |
| 08/30/2001 | WO2001063110A1 Engine exhaust purification device |
| 08/30/2001 | WO2001063109A2 Engine exhaust purification arrangement |
| 08/30/2001 | WO2001063105A2 Engine exhaust purification device |
| 08/30/2001 | US20010017056 Diagnosis device for an engine |
| 08/30/2001 | DE10106839A1 Abnormalitätstestverfahren und Gerät für ein Sekundärluftzufuhrsystem eines Fahrzeugs Abnormalitätstestverfahren and apparatus for a secondary air supply system of a vehicle |
| 08/29/2001 | EP1128046A2 Engine exhaust purification device |
| 08/29/2001 | EP1128042A2 Engine exhaust purification device |
| 08/29/2001 | EP1128033A2 Diagnosis device for an engine |
| 08/23/2001 | WO2001061174A1 Engine exhaust purification device |
| 08/23/2001 | WO2001061165A1 Exhaust emission control for engine |
| 08/23/2001 | US20010015066 Engine exhaust gas cleaning system |
| 08/22/2001 | CN1309746A Method for judging deteriration of emission gas control catalyst device |
| 08/21/2001 | US6276128 Method for monitoring the conversion rate of an exhaust gas catalytic converter for an internal combustion engine |
| 08/16/2001 | US20010013222 Abnormality test method and apparatus for secondary air supply system of a vehicle |
| 08/16/2001 | US20010013220 Measuring arrangement and method for monitoring the operability of a soot filter |
| 08/16/2001 | DE10000339A1 Vorrichtung und Verfahren zur Steuerung einer Abgasrückführrate einer Abgasrückführeinrichtung für Verbrennungskraftmaschinen während eines Magerbetriebs Apparatus and method for controlling an exhaust gas recirculation rate of an exhaust gas recirculation device for internal combustion engines during lean operation |
| 08/09/2001 | WO2001057369A2 Engine exhaust purification device |
| 08/09/2001 | US20010012633 Evaluating method for NOx eliminating catalyst, an evaluating apparatus therefor, and an efficiency controlling method therefor |
| 08/09/2001 | US20010011453 Exhaust-gas cleaning devices for engine |
| 08/08/2001 | EP1121513A2 Method for reducing nitrogen oxide in the exhaust gases of an internal combustion engine operated with a lean mixture |
| 08/02/2001 | WO2001055566A1 METHOD AND DEVICE FOR DETECTING A NOx STORAGE CAPACITY OF A NOx STORAGE CATALYST |
| 08/02/2001 | US20010010152 System for assisting the regeneration of a particle filter integrated into an exhaust line of a motor vehicle diesel engine |
| 08/02/2001 | DE19843871A1 Diagnose eines NOx-Speicherkatalysators mit nachgeschaltetem NOx-Sensor Diagnosis of an NOx storage catalytic converter with a downstream NOx sensor |
| 08/02/2001 | DE10003612A1 Verfahren und Vorrichtung zur Ermittlung einer NOx-Speicherkapazität eines NOx-Speicherkatalysators Method and apparatus for determining an NOx storage capacity of an NOx storage catalytic converter |
| 08/01/2001 | EP1120552A1 Exhaust-gas cleaning devices for engine |
| 08/01/2001 | CN1306601A Exhaust purifier of I.C. Engine |
| 07/31/2001 | US6266955 Diagnostic system for an emissions control on an engine |
| 07/26/2001 | WO2001053672A1 METHOD AND DEVICE FOR DIAGNOSIS OF AN NOx STORAGE CATALYST |
| 07/26/2001 | WO2001052986A1 Method for aging inorganic work pieces |
| 07/25/2001 | EP1118753A2 Diagnostic system for detecting catalyst failure using switch ratio |
| 07/25/2001 | EP1118752A2 Diagnostic system for monitoring catalyst operation using arc length ratio |
| 07/24/2001 | US6263667 Exhaust gas purification device for an internal combustion engine |
| 07/24/2001 | CA2142744C Catalyst degradation detecting apparatus |
| 07/19/2001 | WO2001051792A1 Device and method for controlling a rate of recirculated exhaust gas of an exhaust gas recirculation device for combustion engines during lean operation |
| 07/19/2001 | DE10001640A1 Aging inorganic workpieces used as catalyst or catalyst carrier for treating exhaust gases comprises heat treating at specified temperature under specified pressure |
| 07/12/2001 | WO2001049995A1 Method for operating the catalyst of an internal combustion engine |
| 07/12/2001 | WO2001049994A1 Method for operating a storage catalyst of an internal combustion engine |
| 07/12/2001 | WO2001049993A1 Method for operating an internal combustion engine, in particular of a motor vehicle |
| 07/12/2001 | WO2001049992A1 Method for operating a storage catalyst of an internal combustion engine |
| 07/12/2001 | WO2001049991A1 Method for operating a three-way catalyst of an internal combustion engine |
| 07/12/2001 | WO2001049990A1 Method for operating a three-way catalyst of an internal combustion engine |
| 07/12/2001 | WO2001049989A1 Method for operating an internal combustion engine, especially of a motor vehicle |
| 07/12/2001 | WO2001049988A1 Method for operating an accumulator-type catalytic converter of an internal combustion engine |
| 07/12/2001 | WO2001049987A1 Method for operating an internal combustion engine, in particular, of a motor vehicle |