Matches 301 - 350 out of 1890 < 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 >
Match Document Document Title
7219491 Exhaust emission control apparatus of internal combustion engine and method thereof  
An exhaust emission control apparatus includes a NO X catalyst provided within an exhaust passage of an internal combustion engine where fuel combustion is continuously performed at a lean...
7219008 Method and device for estimating a nitrogen oxide mass stored in a catalytic trapping device of a motor vehicle  
The invention relates to a method of estimating a nitrogen oxide mass stored in a catalytic nitrogen oxide trapping device ( 1 ) which comprises a catalytic phase and which is traversed by the...
7216481 Method and apparatus for regeneration of engine exhaust aftertreatment devices  
An improved method and apparatus for providing reformate into an engine exhaust stream including aftertreatment devices such as a particulate trap and an NOx filter regenerable by hydrogen-rich...
7216479 Exhaust emission control system for vehicle internal combustion engine  
Normally, at the time of cold-start of an internal combustion engine or the like, the flow of exhaust in an exhaust passage of the internal combustion engine is suppressed or two-stage combustion...
7216478 Exhaust treatment diagnostic using a temperature sensor  
A method of monitoring operation of a dosing system for treating exhaust of an engine includes monitoring a downstream temperature of an exhaust downstream of the dosing system and injecting a...
7213396 Method and device for operating an internal combustion engine  
A method for operating an internal combustion engine by introducing air, in which the air is conducted into the induction region of the internal combustion engine following shutoff of the internal...
7213394 Engine blowby injector and injection system and method for injecting blowby  
An engine blowby injection system including a blowby passage, and a blowby injector with a blowby flow outlet sized to inject the blowby flow into an exhaust gas flow generated by an internal...
7213397 Mechanism and method of combined fuel reformer and dosing system for exhaust aftertreatment and anti-idle SOFC APU  
The invention relates to a power generation system with a continuously operating fuel reformer. Preferably, the fuel reformer is either off, warming up, or operating with an essentially constant...
7210285 Internal combustion engine exhaust gas purifying system  
An internal combustion engine exhaust gas purifying system ( 10 ) having a continuous regenerating diesel particulate filter system ( 3 ) on the exhaust passage ( 2 ) of an internal combustion...
7210287 Accelerating catalytic conversion  
A method of reducing exhaust emission from a catalytic converter apparatus of a vehicle, the apparatus including at least one catalytic converter, each of the at least one catalytic converter...
7210288 Exhaust gas aftertreatment installation and method  
An exhaust gas aftertreatment installment and associated exhaust gas aftertreatment method utilizes a nitrogen oxide storage catalytic converter and an SCR catalytic converter. A particulate filter...
7207170 Warm-up method and warm-up system for internal combustion engine  
A warm-up system is provided for an internal combustion engine equipped with a CO 2 absorbing and releasing agent that absorbs CO 2 at a temperature in a first temperature range and releases the...
7208029 Exhaust gas cleaning system  
An exhaust gas cleaning system is provided that comprises a particulate filter and an NOx trapping catalytic converter disposed upstream of the particulate filter. The exhaust gas cleaning system...
7207169 System and method for purifying an exhaust gas  
A system for purifying an exhaust gas includes a plasma unit and a catalyst unit. The plasma unit generates energetic plasma species which react with particulate matters and nitrogen oxides...
7207172 Method for ventilating a working machine, and such a working machine  
A working machine includes an engine compartment, an engine hood, an internal combustion engine arranged in the engine compartment and an exhaust system, which extends from the engine out of the...
7207176 Method of controlling the exhaust gas temperature for after-treatment systems on a diesel engine using a variable geometry turbine  
A method for controlling a variable geometry turbine of a turbocharger to increase the temperature of the exhaust gas delivered to an after-treatment system. In one form the method includes...
7204081 Exhaust gas purifying apparatus and method for internal combustion engine, and engine control unit  
An exhaust gas purifying apparatus and method for an internal combustion engine, and an engine control unit are provided for appropriately determining the amount of reducing agent supplied to a NOx...
7204079 Device for determining the mass of NOx stored in a NOx trap, and a system for supervising the regeneration of a NOx trap including such a device  
The invention relates to a device for determining the mass of NOx stored in a NOx trap in an exhaust line of a motor vehicle engine, the device comprising means for acquiring the richness of the...
7204082 System for combustion of reformate in an engine exhaust stream  
In a diesel engine equipped with a catalytic HC reformer for injecting reformate into the engine exhaust stream to reductively regenerate one or more emissions control devices including but not...
7204080 Air-fuel ratio controller for internal combustion engine  
A first integration value is obtained by performing time integration on a feedback control signal during the time interval between the instant at which the deviation between a reference signal and...
7200989 Apparatus and method for cleaning exhaust gas from an internal combustion engine  
An exhaust-gas cleaning system for cleaning the exhaust gas of an internal combustion engine with self ignition and/or with direct fuel injection has at least one oxidizing catalytic converter,...
7200990 Method for controlling injection of reducing agent in exhaust gas from a combustion engine  
The invention relates to a method for controlling injection of a reductant into a NO x containing exhaust gas stream from a combustion engine, where combustion of a known fuel takes place and...
7200988 Air-fuel ratio control system and method  
An air-fuel ratio control system has an upstream catalyst, a downstream catalyst, a first sensor for detecting a first air-fuel ratio present upstream the upstream catalyst, a second sensor for...
7197867 Method for the simultaneous desulfation of a lean NOx trap and regeneration of a Diesel particulate filter  
High exhaust gas temperatures whereby sulfur is removed from a lean NOx traps simultaneously with regeneration of a Diesel particulate filter is provided by alternating engine operation in...
7197866 Control approach for use with dual mode oxygen sensor  
Electronic circuitry and control algorithms are described to automatically establish the output voltage of a linear exhaust gas oxygen sensor (e.g., a UEGO sensor) corresponding to an exhaust...
7194854 Method for improved performance of a vehicle having an internal combustion engine  
An engine control system for managing lean operation of an internal combustion engine coupled to a lean NOx trap uses an indication of vehicle activity. A target amount of tailpipe emission per...
7189374 Emissions control  
A diesel engine ( 1 ) has an exhaust system ( 4 ) and an oxidation catalyst ( 5 a ). Exhaust gas for recirculation is taken through an intake pipe ( 6 ) downstream of the catalyst, and preferably...
7185487 Adaptive engine control for low emission vehicle starting  
A method for rapidly heating an emission control device in an engine exhaust uses excess air added to the exhaust via an air introduction device. After an engine cold start, the engine is operated...
7185490 Arrangement for securely mounting an exhaust manifold to the cylinder head of an internal combustion engine  
An exhaust manifold has a head flange constructed for receiving at least two exhaust pipes arranged side-by-side, and includes spaced apart first and second longitudinal flange portions. A mounting...
7181907 Method and system for regenerating, particularly desulfating, a storage-type catalytic converter during the purification of exhaust gases  
A method and a system for regenerating, in particular desulfating, storage catalysts in the cleaning of exhaust gas from internal combustion engines. During the regeneration phase the combustion is...
7181906 Devices and methods for reduction of NOx emissions from lean burn engines  
The invention provides devices and methods for generating H 2 and CO in an O 2 containing gas stream. The invention also provides devices and methods for removal of NO X from an O 2 containing...
7181908 Torque compensation method for controlling a direct-injection engine during regeneration of a lean NOx trap  
A torque compensation method for controlling a direct-injection gasoline engine during regeneration of a lean NOx trap disposed in an exhaust path of the engine determines a desired torque in...
7181905 Lean-burn engine exhaust air-fuel and temperature management strategy for improved catalyst durability  
A system is described for improving engine and vehicle performance by considering the effects of exhaust conditions on catalyst particle growth. Specifically, engine operation is adjusted to reduce...
7181909 Control method for an exhaust gas purification system and an exhaust gas purification system  
When a forced regeneration is restarted after interrupting the forced regeneration, and in at least any one of cases where the collecting quantity area (Rpj) detected by the collecting quantity...
7181902 Coordinated engine control for lean NOx trap regeneration  
A method for controlling a direct-injection gasoline engine during regeneration of a lean NOx trap disposed in an exhaust path of the engine includes determining the current air-fuel ratio and...
7178327 Internal combustion engine and control method thereof  
An internal combustion engine in which power is generated by burning a mixture of fuel supplied from a port injector and/or an in-cylinder injector and air in a combustion chamber, includes a valve...
7178331 Exhaust system for lean burn IC engines  
An exhaust system ( 10 ) for a lean-burn internal combustion engine comprises a nitrogen oxide (NO x ) absorbent ( 28 ), a catalyst ( 30 ) for catalyzing the selective catalytic reduction (SCR) of...
7178332 Exhaust heat recovery system  
In an exhaust heat recovery system, electric power generation efficiency of a thermoelectric conversion element can be improved, and warming-up of a catalyst can be completed early, without using a...
7174707 Regeneration of a filter by the use of a tone generator  
Method and arrangement for a combustion engine having an exhaust pipe, and a particle filter located in the exhaust pipe including a membrane which is permeable to gas components generated by a...
7174705 Exhaust-gas aftertreatment device with nitrogen oxide storage catalytic converter, and operating method therefor  
An internal combustion engine includes an exhaust-gas aftertreatment device, and an operating method is for operating the internal combustion engine. The internal combustion engine is operable with...
7174708 Method for managing particulate filter backwashing means  
A method is provided for backwashing, by heating, a particulate filter to be purified of exhaust gases (G) of an internal combustion engine (M), in particular an internal combustion engine...
7168239 Method and system for rapid heating of an emission control device  
A method is disclosed for controlling operation of an engine coupled to an exhaust treatment catalyst. Under predetermined conditions, the method operates an engine with a first group of cylinders...
7168243 NOx adsorber and method of regenerating same  
New technologies, such as NOx adsorber catalytic converters, are being used to meet increasingly stringent regulations on undesirable emissions, including NOx emissions. NOx adsorbers must be...
7168237 Deterioration diagnosing device and diagnosing method for exhaust gas purification catalyst  
To determine whether an exhaust gas purification catalyst ( 42 ) of an engine ( 1 ) has deteriorated, first deterioration of the catalyst ( 42 ) is determined on the basis of an excess air ratio...
7168244 Control method for an exhaust gas purification system and an exhaust gas purification system  
When an engine cooling water temperature (Tw) detected by a cooling water temperature detection means ( 37 C) exceeds a predetermined judgment water temperatures (Tw 1 and Tw 2 ) during the forced...
7168238 Method for heating up a catalyst in combustion engines with direct fuel injection  
A method for heating up a catalytic converter in internal combustion engines having gasoline direct injection is presented and has the steps: shifting the ignition toward retard; checking whether...
7169364 Particulate filter regenerating device  
A particulate filter regenerating device is configured to regenerate a particulate filter that collects particulate from engine exhaust gas. The particulate filter regenerating device is configured...
7168242 NOx catalyst regeneration method for NOx purifying system and NOx purifying system  
This is a method for regenerating the NOx catalyst in a NOx purifying system provided in the exhaust passage with a direct reduction type NOx catalyst which directly decomposes the NOx during...
7165391 Method to reduce engine emissions for an engine capable of multi-stroke operation and having a catalyst  
A method to control valves in a cylinder operating in a multi-stroke cylinder mode. Valves are controlled to improve engine emissions as operating conditions vary.
7165393 System and methods for improved emission control of internal combustion engines  
The present invention provides systems and methods to improve the performance and emission control of internal combustion engines equipped with nitrogen oxides storage-reduction (“NSR”)...
Matches 301 - 350 out of 1890 < 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 >