137918 ⎘
Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups - , , having two or more separate purifying devices arranged in series the purifying devices are of the same type
Method for regenerating a particle trap and exhaust system
#602Pressure-charged internal combustion engine
#603Air-fuel ratio control system and method
#604Zone coated catalyst to simultaneously reduce NOand unreacted ammonia
#605Cogeneration system and exhaust gas heat exchanger assembly thereof
#606Emission control system
#607Exhaust pipe of vehicle
#608Exhaust treatment system having particulate filters
#609Exhaust gas recirculation device for an internal combustion engine
#610Air/fuel ratio control system for automotive vehicle using feedback control
#611Exhaust system
#612Exhaust gas clarifying device for internal combustion engine
#613Engine system with mixed exhaust gas oxygen sensor types
#614Exhaust sound and emission control systems
#615System for controlling valve timing of an engine with cylinder deactivation
#616Exhaust system of multi-cylinder internal combustion engine
#617Exhaust gas purification device of internal combustion engine
#618Exhaust gas purification device of internal combustion engine
#619Exhaust gas purifying system
#620Exhaust gas system
#621Bypass controlled regeneration of NOx adsorbers
#622Exhaust gas purification device of internal combustion engine
#623Exhaust gas purification device of internal combustion engine
#624Catalyst degradation determining method
#625Catalyst degradation determining method
#626Catalyst degradation determining method
#627Catalytic converter system and method of making the same
#628Exhaust gas purification device of internal combustion engine
#629Exhaust system catalyst assembly for a dual crankshaft engine
#630System for controlling valve timing of an engine with cylinder deactivation
#631Apparatus and method for purifying exhaust gas of internal combustion engine
#632Emissions treatment system with NSR and SCR catalysts
#633Air-fuel ratio control apparatus of internal combustion engine
#634Lean idle speed control using fuel and ignition timing
#635Control method and system for diesel particulate filter regeneration
#636Direct-injection engine with turbocharger and method of controlling the same
#637Selective catalytic reduction
#638Exhaust gas purifying system for internal combustion engine
#639Process for reducing diesel enigne emissions
#640Apparatus for purifying exhaust gas of internal combustion engine
#641Exhaust gas purification device of internal combustion engine
#642Removing nitrogen oxides during a lean-burn engine cold start
#643Device for controlling internal combustion engine
#644Process and device for the decontamination of the exhaust gases from an internal combustion engine
#645Air-fuel ratio control device for internal-combustion engine
#646Reformer system, a method of producing hydrogen in the reformer system, and a method of using the reformer system
#647Exhaust gas purification device for engine
#648Method for operating an internal combustion engine
#649Internal combustion engine
#650Reduced internal combustion engine particulate matter emissions
#651Vehicle bypass catalyst diagnostic system
#652Vehicle bypass catalyst diagnostic system
#653Apparatus for purifying exhaust gas
#654Diagnostic for a mid-catalyst NH3 sensor
#655Oil and air separation system and method