| Patents for F01N 9 - Electrical control of exhaust gas treating apparatus (7,942) |
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| 08/17/1993 | US5235956 Secondary air feed device of an engine |
| 07/22/1993 | WO1993014305A1 Process for monitoring a catalytic exhaust gas purifying system of an internal combustion engine |
| 07/22/1993 | DE4201136A1 Verfahren zur ueberwachung einer katalytischen abgasreinigungsanlage eines verbrennungsmotors Process for the catalytic emission control system ueberwachung a combustion engine |
| 07/20/1993 | US5228335 Method and apparatus for detection of catalyst failure on-board a motor vehicle using a dual oxygen sensor and an algorithm |
| 07/14/1993 | EP0550562A1 Trap apparatus with bypass |
| 07/08/1993 | WO1993012863A1 Exhaust emission control device in internal combustion engine |
| 07/06/1993 | US5224335 Exhaust emission control apparatus for internal combustion engine |
| 06/30/1993 | EP0516692A4 Exhaust emission control |
| 06/29/1993 | US5222471 Emission control system for an internal combustion engine |
| 06/23/1993 | EP0547326A2 A device for determining deterioration of a catalytic converter for an engine |
| 06/08/1993 | US5216880 Catalytic converter heater control system for internal combustion engine |
| 06/03/1993 | DE4139291A1 Driving IC engine with exhaust driven turbocharger - intermittently adding extra fuel and/or air upstream of turbine with electrically-heated catalytic firing |
| 05/27/1993 | WO1993010339A1 A variable exhaust system for an internal combustion engine |
| 05/27/1993 | DE4238445A1 Air entry device for IC engine exhaust line with catalyser - uses entry pipe with electrically controlled valve regulating air flow rate to ensure optimum cleaning |
| 05/25/1993 | US5212948 Trap apparatus with bypass |
| 05/19/1993 | EP0541538A1 Method and apparatus for detecting soot concentration in particulate trap |
| 05/18/1993 | US5211010 Exhaust gas purification system for a diesel engine |
| 05/18/1993 | US5211009 Method for the regeneration of particulate-filter systems |
| 05/11/1993 | US5209061 Lean NOx catalyst, temperature sensor |
| 05/11/1993 | US5209060 Method for the continuous lambda control of an internal combustion engine having a catalyzer |
| 05/04/1993 | US5207990 Exhaust gas purifying device for internal combustion engine |
| 04/29/1993 | WO1993008383A1 Exhaust and purification device for internal combustion engine |
| 04/29/1993 | WO1993008382A1 Method and apparatus for initiating regeneration in an engine exhaust particulate filter |
| 04/29/1993 | DE4134949A1 Method of maintenance of soot filter - enables soot to be burnt in filter and filter to be cleaned by reverse flow |
| 04/22/1993 | DE4234841A1 Exhaust gas feedback control for diesel engine - controls throttle to allow regeneration of particle filter in exhaust line |
| 04/20/1993 | US5203165 Method for the lambda control of an internal combustion engine having a catalyzer |
| 04/14/1993 | EP0536158A1 Process for protecting catalysts used for cleaning exhaust gases and heat tone sensor for implementing the process. |
| 04/13/1993 | US5201802 Zeolite catalyst |
| 04/08/1993 | DE4209470A1 Exhaust-driven burner for regenerator particle filter - has after burner chamber with partial exhaust flow, between combustion and mixer chambers |
| 04/08/1993 | DE4141116C1 Operating burner receiving exhaust gas of IC engine - regenerating particle filter installation producing flame in variable manner |
| 04/08/1993 | DE4132814A1 Exhaust gas purification method using catalytic converter, esp. for cold start - using fuel fired burner to preheat catalytic converter, controlled by temperature sensors |
| 04/04/1993 | WO1993007363A1 Device for purifying exhaust of internal combustion engine |
| 04/01/1993 | DE4231575A1 IC engine control with cold start projection for exhaust catalyser - uses secondary catalyser between main catalyser and engine to burn excess fuel during warm=up period. |
| 03/23/1993 | US5195318 Exhaust gas purifying device for an internal combustion engine |
| 03/23/1993 | US5195317 Filter regenerating apparatus for an internal combustion engine |
| 03/23/1993 | US5195316 Exhaust gas purifying device for an internal combustion engine |
| 03/18/1993 | WO1993005388A1 Antenna system for soot detecting apparatus |
| 03/18/1993 | CA2117078A1 Antenna system for soot detecting apparatus |
| 03/17/1993 | EP0532031A1 Device for the thermal regeneration of diesel engine exhaust particle filters |
| 03/17/1993 | EP0532030A1 Device for removing particles out of the exhaust gases of diesel engines |
| 03/16/1993 | US5193340 Exhaust gas purifying system for internal combustion engine |
| 03/16/1993 | CA1314487C Method of and apparatus for reducing engine and smoke emissions |
| 03/13/1993 | CA2078096A1 Device for removing particles from diesel engine exhaust gas |
| 03/13/1993 | CA2078017A1 Device for the termal regeneration of particle filters for diesel engine exhaust gas |
| 03/09/1993 | US5191763 Device for controlling heating of catalyzer for purifying exhaust gas |
| 03/02/1993 | US5189876 Exhaust gas purification system for an internal combustion engine |
| 02/24/1993 | EP0528289A1 Device for catching and removing particulates for a diesel engine |
| 02/10/1993 | EP0526591A1 Means for controlling exhaust temperature on a catalytically purified combustion engine. |
| 02/09/1993 | US5184463 Method of reducing the emission of toxic exhaust gas components in an internal combustion engine |
| 02/03/1993 | EP0525566A1 A method and apparatus for determining the clogging of a filter, in particular a filter for an exhaust system |
| 01/28/1993 | DE4223854A1 Power supply for motor vehicle parts - includes switch connected between power source and heating unit e.g. for intake of air |
| 01/07/1993 | EP0521050A1 Process and device for controlling an internal combustion engine in function of the actual temperature of a downstream catalyst |
| 01/07/1993 | DE4120891A1 Combustion engine pumping fresh air into exhaust system - is checked for correct exhaust treatment function by direct or indirect measurement of pump power consumption |
| 12/30/1992 | EP0520170A1 Method for controlling the air supply to a burner for the regeneration of particle filters |
| 12/10/1992 | WO1992021863A1 Test method for a device for injection of air into the exhaust gases of an internal combustion engine |
| 12/09/1992 | EP0516692A1 Exhaust emission control. |
| 12/03/1992 | DE4215942A1 Exhaust gas concn. monitor used in IC engine catalytic purifier - using modified zeolite catalyst to reduce nitrogen oxide cpds. for max. efficiency |
| 12/02/1992 | EP0515369A1 Control system for diesel particulate trap regeneration system |
| 12/01/1992 | USH1113 Apparatus for supplying power to electrically heated catalyst converter |
| 12/01/1992 | US5167120 Method of controlling the temperature of an exhaust gas probe |
| 11/25/1992 | CN1066486A Filter regenerating apparatus for internal combustion engine |
| 11/24/1992 | CA1310591C Muffler apparatus with filter trap and method of use |
| 11/05/1992 | DE4114642A1 Catalytic sec combustion of vehicle exhaust gases - during initial start up using catalytic converter fitted with sec heater that is activated before engine switched on by opening drivers door |
| 10/20/1992 | US5157340 Method and apparatus for detecting soot concentration in particulate trap |
| 10/20/1992 | US5155994 Noble metal base catalyst and downstream intermediate product decomposing means in exhaust conduit reduce nitrogen oxides to nitrogen and oxygen |
| 10/07/1992 | EP0507372A1 Method and apparatus for diagnosing an engine control system |
| 10/07/1992 | CN2118161U Electronic servo exhaust apparatus for i.c. engine |
| 10/06/1992 | US5152137 Air-fuel ratio control system for automotive vehicle engine |
| 09/30/1992 | EP0506083A1 A filter regenerating apparatus for an internal combustion engine |
| 09/17/1992 | DE4108694A1 Regeneration system for engine exhaust gas particle filter - detects fault in control sensors for regeneration cycle to initiate auxiliary regeneration |
| 09/16/1992 | EP0503882A1 Exhaust gas purification system for an internal combustion engine |
| 09/15/1992 | US5146900 Apparatus for treating exhaust particulates resulting from combustion in diesel engine |
| 09/03/1992 | WO1992014912A1 A method and a device for catalyst emission control |
| 09/03/1992 | WO1992014631A1 Vehicle battery charging system |
| 09/03/1992 | DE4106308A1 Temp. regulation for exhaust gas probe - using electrically heated wire with its resistance depending on temp. and probe positioned in exhaust gas pipe of IC engine |
| 08/26/1992 | EP0500287A1 Catalyzer control apparatus |
| 08/25/1992 | US5140810 Method of detecting failure in a secondary air supply system for internal combustion engines |
| 08/18/1992 | US5138833 Converter overtemperature protection system and method |
| 08/12/1992 | EP0498598A1 Exhaust gas purification system for an internal combustion engine |
| 08/11/1992 | US5136842 Method for heating an exhaust gas catalytic converter |
| 08/04/1992 | US5134847 Double air-fuel ratio sensor system in internal combustion engine |
| 07/29/1992 | EP0496526A1 Exhaust gas purification system for an internal combustion engine |
| 07/28/1992 | US5133184 Method and apparatus for monitoring the conversion ratio of a catalytic converter |
| 07/16/1992 | DE4100780A1 Filter cleaning in diesel engine exhaust system - being aided by chemical additive injected in accordance with memorised relationship of engine speed to load |
| 07/07/1992 | US5127372 Exhaust silencer system for two-cycle engine |
| 07/01/1992 | EP0492989A1 Exhaust gas purification system for a diesel engine |
| 06/16/1992 | US5121601 Diesel engine exhaust oxidizer |
| 06/09/1992 | US5119631 Apparatus and method for detecting abnormalities in a secondary air supplier |
| 05/26/1992 | US5116579 Humidity detector, ammonia supply means, flow controller; air pollution |
| 05/19/1992 | US5113651 Air injection system diagnostic |
| 04/21/1992 | US5105620 Secondary air supply system for supercharged engine |
| 04/21/1992 | US5105619 Regeneration system for particulate trap |
| 04/21/1992 | CA1298957C Method for removal of nitrogen oxides from exhaust gas of diesel engine |
| 04/01/1992 | EP0478133A2 Method and apparatus for monitoring deterioration of internal combustion engine exhaust gas purifier |
| 03/28/1992 | WO1992006284A1 Trap apparatus with bypass |
| 03/28/1992 | CA2090866A1 Trap apparatus with bypass |
| 03/24/1992 | US5097665 Flattened profile diesel engine exhaust oxidizer |
| 03/05/1992 | WO1992003643A1 Monitoring of the catalytic activity of a catalytic converter through which a catalysable fluid flows |
| 03/05/1992 | WO1992003642A1 Monitoring of the catalytic activity of a catalyst in the exhaust gas system of an internal combustion engine |
| 03/05/1992 | DE4027207A1 Ueberwachung der katalytischen aktivitaet eines katalysators im abgassystem einer brennkraftmaschine Monitoring the catalytic activity of a catalyst in the exhaust system of an internal combustion engine |