29780 ⎘
Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols,; Chemical or biological purification of waste gases of engine exhaust gases by catalytic processes Removing one or more of nitrogen oxides, carbon monoxide, or hydrocarbons by multiple successive catalytic functions; systems with more than one different function, e.g. zone coated catalysts
Sub-classes:SYSTEMS AND METHODS FOR CONTROLLING TAILPIPE EXHAUST EMISSIONS
#2Particulate filter
#3ISOLATED PLASMA TUBE TREATMENT SYSTEMS
#4INHIBITION-FREE LOW-TEMPERATURE ENGINE EXHAUST OXIDATION CATALYST
#5Exhaust gas treatment system and method with four-way catalyzed filter element
#6Isolated plasma tube treatment systems
#7Porous structure for exhaust gas purification catalyst, exhaust gas purification catalyst using porous structure, and exhaust gas purification method
#8Multi-function catalyst article for treating both CO and NOx in stationary emission source exhaust gas
#9Exhaust gas treatment system and method with four-way catalyzed filter element
#10Exhaust gas purification catalyst
#11Vehicle aftertreatment system enabling the change in the sequence of operating aftertreatment devices
#12NOx ADSORBER CATALYST
#13Methods for operating and diagnosing internal combustion engine exhaust gas treatment systems
#14Isolated plasma array treatment systems
#15Diesel oxidation catalyst and exhaust system
#16VORTEX FLOW CATALYTIC CONVERSION APPARATUS AND METHOD OF VORTEX FLOW CATALYTIC CONVERSION
#17Exhaust emission control device, method and computer program product for an engine
#18Ruthenium impregnated ceria catalyst
#19Ion-exchanged molecular sieve catalysts exhibiting reduced N2O emissions
#20Non-thermal plasma/ozone-assisted catalytic system and use in exhaust systems
#21Diesel oxidation catalyst and exhaust system
#22Diesel oxidation catalyst and exhaust system
#23Selective catalytic reduction catalyst
#24Oxidation catalyst for a diesel engine exhaust
#25Exhaust gas purification filter
#26Oxidation catalyst for hydrocarbons produced by an internal combustion engine
#27DIESEL OXIDATION CATALYST AND EXHAUST SYSTEM
#28DIESEL OXIDATION CATALYST AND EXHAUST SYSTEM
#29Diesel oxidation catalyst having a capture region for sulfur containing impurities
#30Oxidation catalyst for a stoichiometric natural gas engine
#31NOx adsorber catalyst
#32Emission control device
#33Catalyst trap
#34Method for preparing zeolite catalyst
#35Method for cleaning process off- or engine exhaust gas
#36Deterioration diagnosis apparatus for selective catalytic reduction catalyst
#37Catalyst system for lean NOx reduction with hydrocarbons
#38Porous catalyst washcoats
#39Emission reduction system
#40Use of transition metals to reduce cold start emissions
#41Catalyzed soot filter
#42Exhaust gas purification material
#43Copper Containing Levyne Molecular Sieve For Selective Reduction Of NOx
#44Control techniques of exhaust purification system and exhaust purification system
#45Emission control in rich burn natural gas engines
#46Zoned catalysed substrate monolith
#47Method of estimating hydrocarbon storage in a catalytic device
#48Diesel oxidation catalyst and exhaust system
#49Diesel oxidation catalyst and exhaust system
#50Diesel oxidation catalyst and exhaust system
#51NOX SENSOR WITH AMOX CATALYST
#52Noble metal-molecular sieve catalysts
#53Catalytic reduction of NO
#54Heat generation system for determining a selective catalytic reduction device efficiency
#55Method and apparatus for exhaust gas control of an internal combustion engine
#56Exhaust gas control apparatus for internal combustion engine
#57Selective reduction catalyst, and exhaust gas purification device and exhaust gas purification method using same
#58COLD START CATALYST AND ITS USE IN EXHAUST SYSTEMS
#59Copper containing levyne molecular sieve for selective reduction of NOx
#60Stoichiometric exhaust gas recirculation and related combustion control
#61Perovskite-based catalysts, catalyst combinations and methods of making and using the same
#62DEVICE FOR CLEANING EXHAUST GAS OF INTERNAL COMBUSTION ENGINE
#63Exhaust purification device for hybrid electric vehicle
#64Catalyst for removing nitrogen oxides and method for removing nitrogen oxides using the same
#65EXHAUST PURIFICATION SYSTEM FOR HYBRID ELECTRIC VEHICLE
#66Exhaust gas purification system and exhaust gas purification method
#67Method of exhaust cleaning for internal combustion engine and exhaust cleaner
#68EXHAUST EMISSION CONTROL DEVICE
#69Method of controlling NOx purification system and NOx purification system
#70EXHAUST PURIFICATION SYSTEM FOR INTERNAL COMBUSTION ENGINE
#71Exhaust purification device of internal combustion engine
#72Exhaust emission control device
#73HONEYCOMB STRUCTURE
#74APPARATUS FOR PURIFICATION OF EXHAUST GAS AND METHOD FOR PURIFICATION OF EXHAUST GAS USING THE SAME
#75Exhaust gas purifying apparatus for internal combustion engine
#76CONTINUOUSLY REGENERATING PARTICULATE FILTER FOR INTERNAL COMBUSTION ENGINE
#77Regenerable sulfur traps for on-board vehicle applications
#78NOtrapping catalytic converter diagnostic apparatus
#79Exhaust system of a motor vehicle with a diesel engine
#80Exhaust System For An Internal Combustion Engine, and Method For Operating Such An Exhaust System
#81Emission treatment system with NSR and SCR catalysts
#82Diesel particulate matter reduction system
#83Emissions treatment system with NSR and SCR catalysts