Patents
Sitemap › F01 - Machines or engines in general; Engine plants in general; Steam engines › F01N - Gas-flow silencers or exhaust apparatus for machines or engines in general; Gas-flow silencers or exhaust apparatus for internal-combustion engines › F01N 9 - Electrical control of exhaust gas treating apparatus
Patents for F01N 9 - Electrical control of exhaust gas treating apparatus (7,942)
09/1999
09/21/1999US5953909 Combustor for unspent exhaust from an internal combustion engine
09/16/1999DE4025565C2 Controlled IC exhaust gas buffer and recycle system - improving cold start=up efficiency of catalytic converters using an engine management device
09/16/1999DE19811257A1 Verfahren zur Steuerung der Abgasnachbehandlung eines DI-Otto- und Magermotors Method for controlling the exhaust gas treatment of a DI gasoline and lean-burn engine
09/15/1999EP0598916B1 Exhaust emission control system for internal combustion engine
09/14/1999US5950422 Method and device for converting a pollutant in an exhaust gas in a catalytic converter
09/14/1999US5950420 Method and arrangement for controlling exhaust emissions from an internal combustion engine
09/08/1999EP0636770B1 Exhaust gas cleaning device for an internal combustion engine
09/07/1999US5946907 Engine catalyst activation determining device and engine controller related thereto
09/07/1999US5946906 Exhaust gas purification system of internal combustion engine
09/01/1999EP0598917B1 Exhaust emission control system for internal combustion engine
08/1999
08/26/1999DE19829205C1 Correcting injection time for internal combustion engine with secondary air system
08/25/1999EP0937869A1 Temperature monitoring of an exhaust apparatus with cooling loop for combustion engines
08/24/1999US5941066 Device for purifying the exhaust gas of an internal combustion engine
08/17/1999US5938715 Method for monitoring the conversion capacity of a catalytic converter
08/17/1999US5937637 System for purifying exhaust gas for use in an automobile
08/12/1999WO1999039809A1 SYSTEM FOR NOx REDUCTION IN EXHAUST GASES
08/10/1999US5936314 Failure detecting device for a power supply changeover switch
08/10/1999US5934071 For an automotive vehicle
08/03/1999US5930993 Method for monitoring the exhaust gas conversion rate of an exhaust catalyst for an internal combustion engine
07/1999
07/29/1999DE19823513C1 Engine catalyser heating method
07/28/1999EP0931922A2 Method and apparatus to purify the exhaust gas of an internal combustion engine
07/27/1999US5928303 Diagnostic system for diagnosing deterioration of heated type oxygen sensor for internal combustion engines
07/27/1999US5927248 Method of monitoring an overheating protective arrangement during full-load operation of an internal combustion engine
07/27/1999US5927068 Method and apparatus for monitoring the functioning of a catalytic converter
07/15/1999WO1999035379A1 Temperature monitoring of an exhaust system having a cooling loop, for internal combustion engines
07/14/1999EP0928890A2 Method for operating an NOx storage catalytic converter
07/14/1999EP0928884A2 Mixture delivery device
07/14/1999EP0928366A1 Secondary-air system for an internal combustion engine
06/1999
06/23/1999EP0924398A2 Exhaust gas purifier and operating method thereof
06/19/1999CA2250629A1 Exhaust gas purifier and operating method thereof
06/16/1999EP0922270A1 Process for determining and/or paying a compensation for pollutants in exhaust fumes and motor vehicle with a set working according to this process
06/10/1999WO1999011909A8 Method of reducing internal combustion engine emissions, and system for same
06/10/1999DE19753573A1 Exhaust gas purifying apparatus for Otto engine
05/1999
05/18/1999US5904902 Electrically heats catalyst; controller adjusts and evaluates temperature; voltage, current, and electrical resistance measurement
05/06/1999EP0913560A1 Method for improving the exhaust emissions of an internal combustion engine
05/06/1999DE19748561A1 Diesel engine exhaust particle filter is regenerated using electric heating element
04/1999
04/27/1999CA2183537C A flow-through particulate incineration system coupled to an aerodynamically regenerated particulate trap for diesel engine exhaust gas
04/22/1999DE19741973C1 Method of determining the soot conc. of self-igniting internal combustion engines
04/20/1999US5894725 Method and apparatus for maintaining catalyst efficiency of a NOx trap
04/14/1999EP0908608A1 Process for monitoring the operation and ageing of a catalytic converter for a lean-burn engine and system for carrying out the process
04/13/1999US5893710 Fuel-operated heater, especially an auxiliary heater for a motor vehicle
04/08/1999DE19744067A1 Building temp. model for exhaust gas region of IC engine based on operating parameters
03/1999
03/30/1999US5887422 Exhaust gas purification method and apparatus therefor
03/24/1999CN2311612Y Forced discharge controller for waste gas of engine
03/23/1999US5884477 Fuel supply control system for internal combustion engines
03/18/1999DE19838032A1 Regeneration system for particle filter in internal combustion engine exhaust
03/16/1999CA2097609C Device for purifying exhaust of internal combustion engine
03/11/1999WO1999011909A1 Method of reducing internal combustion engine emissions, and system for same
03/10/1999EP0852662B1 Process and device for reacting a pollutant in an exhaust gas on a catalyst
03/04/1999DE19736967A1 Method and arrangement for monitoring NOx reservoir in combustion engine esp diesel engine exhaust gas output line
02/1999
02/17/1999EP0897051A1 Method and device for monitoring the function of a secondary air pump
01/1999
01/19/1999US5860277 Method for monitoring the operating capability of a catalyzer in the exhaust duct of an internal combustion engine
01/05/1999US5855113 Method and system for controlling the temperature of an exhaust system having a variable length exhaust pipe
12/1998
12/29/1998US5853459 Exhaust as purifying method, exhaust gas filter, and exhaust gas filter purifying apparatus using same
12/23/1998EP0886044A1 An exhaust gas purification device
12/16/1998CN1202219A Method and device for purifying exhaust gas of engine
12/15/1998US5848530 Device for detecting deterioration of catalytic converter for cleaning exhaust gases
12/08/1998US5845487 Method and device for operating an internal combustion engine with low nitrogen oxide emissions
12/08/1998US5845486 Internal combustion engine exhaust gas purifier apparatus
12/02/1998EP0881738A2 Generator powered electrically heated catalyst system
12/01/1998US5842341 Exhaust emission purification apparatus for an internal combustion engine
12/01/1998CA2096457C Air/fuel ratio control
11/1998
11/26/1998DE19822798A1 Exhaust control for internal combustion engine
11/25/1998EP0879343A1 Method and device for purifying exhaust gas of engine
11/19/1998DE19720381A1 Hybrid drive mechanism for vehicle with internal combustion engine
11/18/1998EP0878608A2 Process and device for reducing nitrogen oxides in the exhaust of a combustion plant
11/11/1998CN1198798A process and device for reacting a pollutant in an exhaust gas on a catalyst
11/11/1998CN1198796A Process and device for metering the introduction of a reducing agent into the waste gas or air stream of a combustion unit
11/10/1998US5832722 Method and apparatus for maintaining catalyst efficiency of a NOx trap
11/10/1998US5832721 Method and system for estimating a midbed temperature of a catalytic converter in an exhaust system having a variable length exhaust pipe
10/1998
10/20/1998US5822978 Method of controlling the electric heating of a catalytic converter
10/20/1998US5822977 Method of and apparatus for purifying exhaust gas utilizing a heated filter which is heated at a rate of no more than 10° C./minute
10/15/1998WO1998045586A1 PROCESS AND DEVICE FOR MONITORING A NOx ACCUMULATOR
10/15/1998DE19714715A1 Nitrous-oxide-accumulator monitoring system in exhaust-pipe
10/13/1998US5819531 Control device for electrically-heated catalyzers
10/08/1998WO1998043732A1 REDUCING NOx EMISSIONS FROM AN ENGINE BY TEMPERATURE-CONTROLLED UREA INJECTION
10/07/1998EP0869263A1 Method and apparatus for maintaining catalyst efficiency of a NOx trap
10/06/1998US5818119 Alternator control system
09/1998
09/30/1998EP0867609A1 Method and system for estimating a midbed temperature of a catalytic converter in an exhaust system
09/30/1998EP0867604A1 Method and apparatus for maintaining catalyst efficiency of a nox trap
09/30/1998EP0867603A1 Method and system for controlling the temperature of an exhaust system
09/29/1998US5815828 In a motor vehicle
09/29/1998US5814283 Exhaust purifier of internal combustion engine
09/23/1998EP0866219A2 Fuel cut control apparatus for internal combustion engine
09/22/1998US5811884 Automotive onboard load control apparatus and method
09/22/1998US5809773 Method and a device for catalyst emission control
09/22/1998CA2137039C Fuel supply control system for internal combustion engines
09/16/1998EP0715685B1 Engine management system
09/15/1998CA2118211C Adaptive multifrequency reactive muffler
09/09/1998EP0863398A1 Apparatus for detecting the fouling of an isolating environment, and for local heating thereof
09/08/1998US5804148 Engine exhaust purifier
09/08/1998US5802844 After-burner heated catalyst system and associated control circuit and method
09/08/1998US5802843 Method and apparatus for diagnosing engine exhaust gas purification system
09/02/1998EP0813648B1 Device and method for heating a catalytic converter for the exhaust of an internal-combustion engine
08/1998
08/19/1998EP0859132A1 Exhaust emission control apparatus for internal combustion engine
08/13/1998WO1998035143A1 Control method and device for a combustion system, catalytic purification of exhaust gas from a combustion system, and the combustion system
08/13/1998DE19704558A1 Verfahren und Einrichtung zur katalytischen Abgasreinigung sowie Verbrennungsanlage Method and apparatus for catalytic emission control products and incinerator
08/11/1998US5791140 Exhaust gas-purifying system for internal combustion engines
08/06/1998DE19801976A1 Fuel supply control/regulating system for combustion (IC) engine
08/05/1998EP0856645A1 Method to regulate the temperature of a catalytic converter arrangement and device for implementing the method
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