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US20050066652 Diesel aftertreatment systems  
A method for improving NOx conversion efficiency of a Nox-reducing catalyst by determining an accurate amount of reductant required is presented. The method includes calculating an initial...
US20050252197 Diesel aftertreatment systems  
An accurate thermodynamic model of an Active Lean NOx (ALNC) Catalyst is presented. The model takes into account hydrocarbon storage and release mechanisms of the ALNC, as well as the degradation...
US20050262832 Exhaust gas purification device of internal combustion engine  
A catalyst (22) suitable for reduction of the NOx in an exhaust gas by ammonia in the presence of excess oxygen is arranged in the exhaust passage (18, 21) of an internal combustion engine. An...
US20050005596 High efficiency conversion of nitrogen oxides in an exhaust aftertreatment device at low temperature  
A system and method for providing reductant to a lean NOx catalyst, when the temperature in the lean NOx catalyst is greater than 300° C., is disclosed. After the reductant is supplied under these...
US20130219868 DIESEL MOTOR HAVING IMPROVED PROPERTIES  
The present invention describes a motor designed for biodiesel compatibility comprising a particulate filter, a motor control unit being able to inject fuel to the engine in order to increase the...
US20050252202 Integrated apparatus for removing pollutants from a fluid stream in a lean-burn environment with heat recovery  
An apparatus and method to treat fluid streams, and in particular emissions from lean-burn engines such as diesel engines, are disclosed, which use multiple catalysts chosen to remove...
US20090038289 GAS SENSOR, AIR-FUEL RATIO CONTROLLER, AND TRANSPORTATION APPARATUS  
A gas sensor includes a gas detection section, a heater whose electrical resistance value changes in accordance with temperature, and a control section arranged to control an operation of the...
US20100275582 EXHAUST EMISSION CONTROL DEVICE FOR INTERNAL COMBUSTION ENGINE  
Provided is an exhaust emission control device for an internal combustion engine capable of high-efficiency DPF regeneration processing. The exhaust emission control device comprises a DPF for...
US20110265455 AMMONIA BURNING INTERNAL COMBUSTION ENGINE  
An ammonia burning internal combustion engine capable of using ammonia as fuel comprises an exhaust purifying catalyst purifying ammonia and NOx in an inflowing exhaust gas and an inflowing gas...
US20150143798 SYSTEM AND METHOD OF PURIFYING EXHAUST GAS  
A system of purifying exhaust gas may include an engine including an injector, a lean NOx trap (LNT) adapted to absorb nitrogen oxide (NOx) contained in the exhaust gas at a lean air/fuel ratio,...
US20070271906 System and method for inhibiting regeneration of a diesel particulate filter  
A system and method for initiation and control of passive regeneration (38) of a diesel particulate filter (34), and the integration of that regeneration strategy with an active regeneration...
US20050262827 Electronic engine control device, vehicle equipped with electronic engine control device, and electronic engine control method  
On the premise that a target torque of an engine is equal to 0, that observed catalyst temperature is in a specified temperature range causing deterioration of the catalyst, and that the engine...
US20050060986 Evaluating method for no eliminating catalyst, an evaluating apparatus therefor, and an efficiency controlling method therefor  
In order to prevent a catalyst for an internal combustion engine from decreasing efficiency by deterioration after long time use of the catalyst, the decreased efficiency of the catalyst is...
US20060059895 Method for operating an internal combustion engine  
A method for operating an internal combustion engine includes the step of measuring emission values of at least two pollutant components of an exhaust gas of an internal combustion engine. A value...
US20110126520 Regeneration Method for Diesel Particulate Filter  
A regeneration control method of a particulate filter, may include regenerating the particulate filter, determining whether an engine is in an idle condition or in an over-run condition, and...
US20050247050 Adsorption based ammonia storage and regeneration system  
One aspect of the invention relates to a device for storing ammonia for use in SCR on board a vehicle. The device comprises an adsorption bed with a high capacity for storing ammonia. The device...
US20070277505 VENTING OF ON-BOARD VEHICLE EMISSIONS TREATMENT SYSTEM  
A system and method for controlling venting of an on-board vehicle emissions treatment substance storage and distribution system that selectively dispenses an emissions treatment substance from a...
US20070175206 NOx adsorber aftertreatment system for internal combustion engines  
The present invention provides for an NOx adsorber aftertreatment system for internal combustion engines which utilizes a parallel arrangement of an adsorber catalyst and a bypass. The exhaust...
US20070137181 Exhaust gas aftertreatment systems  
A method are presented for monitoring an amount of ammonia stored in a urea-based SCR catalyst based on a response of a sensor coupled downstream of the catalyst to a periodic desorbtion of a...
US20070079605 Exhaust aftertreatment system with transmission control  
A power generation system having a fuel reformer positioned inline with an engine exhaust stream. A transmission controller selects torque ratios and thereby operating points for the engine in...
US20060266021 Exhaust purification with on-board ammonia production  
A power source is provided for use with selective catalytic reduction systems for exhaust-gas purification. The power source has a first cylinder group fluidly connected to a first air-intake...
US20060010854 Exhaust gas clarifying device for internal combustion engine  
An exhaust purification catalyst (11) for purifying NOx under a lean air-fuel ratio is arranged in exhaust passage of an internal combustion engine. As a catalyst carrier (50) of this exhaust...
US20150033712 METHOD FOR DRAINING A DELIVERY UNIT FOR LIQUID ADDITIVE, DELIVERY UNIT AND MOTOR VEHICLE HAVING A DELIVERY UNIT  
A method for draining a delivery unit for a liquid additive, in particular a urea-water solution, includes at least: a) producing an electrical connection by using a currentless switch which is...
US20060168945 AFTERTREATMENT FOR COMBUSTION ENGINES  
An aftertreatment system for an engine emissions trap or adsorber having a mechanism for increasing exhaust temperature of an engine to regenerate the trap or adsorber. The mechanism may include a...
US20060201137 Engine control equipment  
An engine control equipment capable of activating a catalyst and preventing exhaust gas from deteriorating in order to early perform combustion by compressive self-ignition is disclosed. The...
US20080155970 METHOD FOR VERIFYING THE FUNCTIONALITY OF THE COMPONENTS OF A DIESEL PARTICULATE FILTER SYSTEM  
A method for verifying the functionality of the components for a diesel particulate filter system based upon engine speed, engine torque, inlet and outlet exhaust pressure at the diesel...
US20070079598 Gaseous fuel engine charge density control system  
A gaseous fuel engine including an exhaust gas recirculation system and method for operating a gaseous fuel engine are provided. The exhaust gas recirculation system has an adjustable flow and is...
US20070062180 Combustion engine including exhaust purification with on-board ammonia production  
Engines and methods of controlling an engine may include producing ammonia from exhaust gas and using the ammonia to reduce certain emission components of the exhaust. Timing of valve...
US20060130465 Method and system for controlling exhaust gases emitted from an internal combustion engine  
Method, system, and controller for controlling oxygen levels in exhaust gases as a function of soot burn rates of a particulate filter so as to facilitate regeneration of the particulate filter....
US20100122523 COLD-START ENGINE LOADING FOR ACCELERATED WARMING OF EXHAUST AFTERTREATMENT SYSTEM  
The methods of the present invention are adapted to adjust engine loading during catalyst warm up to accelerate heating of the exhaust aftertreatment system and thereby decrease catalyst light-off...
US20090301062 EXHAUST EMISSION CONTROL DEVICE FOR INTERNAL COMBUSTION ENGINE  
An exhaust emission control device for an internal combustion engine includes a capturing device that is disposed in an exhaust passage of the engine and that captures particulate matter in...
US20090266054 Control Apparatus and Method for Internal Combustion Engine  
A control apparatus for an internal combustion engine has an oxygen storage volume computing unit for computing an oxygen storage volume of a catalyst by using a real air/fuel ratio detected by an...
US20060218895 Method for operating an internal combustion engine and device for executing the method  
A method for operating an internal combustion engine and a device for executing the method provide for diagnostics of the exhaust system in which an exhaust-gas treatment device for converting at...
US20080078166 Hybrid engine exhaust gas temperature control system  
A power system is provided having a power source operationally coupled to a generator. The power system also includes an exhaust passage having at least one after-treatment device configured to...
US20060207241 Control apparatus for internal combustion engine  
An engine ECU executes a program including the step of detecting engine start, the step of detecting, when rapid catalyst warm-up is necessary, the temperature of the engine coolant THW, the step...
US20050216176 Control system and method for an internal combustion engine and vehicle including the same system  
The temperature of a component provided in or associated with an internal combustion engine is estimated with no regard to the automatic stop and the automatic start of the internal combustion...
US20100122525 EXHAUST PURIFICATION CONTROL DEVICE AND EXHAUST PURIFICATION SYSTEM OF INTERNAL COMBUSTION ENGINE  
If it is determined that accumulation quantity of deposit on an inner wall of an exhaust passage is equal to or larger than a predetermined value, addition quantity of urea solution from a urea...
US20070204594 Exhaust purification system for hybrid vehicle  
An exhaust purification system for a hybrid vehicle with an internal combustion engine and an electric motor capable of being driven by the engine includes a battery, an exhaust gas passage, an...
US20090044517 Exhaust gas purification system for an internal combustion engine  
The present invention has for its object to provide a technique in which in an exhaust gas purification system for an internal combustion engine equipped with an exhaust gas purification apparatus...
US20080148719 ENGINE SYSTEM AND A METHOD FOR A COMBUSTION INHIBITION REGENERATION OF AN EXHAUST GAS TREATMENT DEVICE IN A SUCH SYSTEM  
A method and a system for regenerating an exhaust gas treatment device in an internal combustion engine having at least one cylinder are presented. The method comprises regenerating the device by...
US20080022660 Method for controlled DPF regeneration  
One of the inventors' concepts relates to controlling a temperature of a diesel engine exhaust aftertreatment device, such as a DPF or a fuel reformer, in which combustion is taking place. The...
US20050022504 Engine exhaust gas cleaning apparatus  
When rich spike control is executed in a diesel engine equipped with a NOx trapping catalytic converter, there are times when the amount of NOx desorbed is too little or too much. The rich spike...
US20080236144 CONTROL SYSTEM OF INTERNAL COMBUSTION ENGINE AND METHOD FOR CONTROLLING THE SAME  
An internal combustion engine has an exhaust passage provided with a catalyst to purify exhaust gas. A control system for the internal combustion engine performs a quick-warming control to...
US20080098725 Exhaust system having mid-reducer NOx sensor  
An exhaust system for a combustion engine is disclosed. The exhaust system may have a housing connected to receive a flow of exhaust. The exhaust system may also have a first catalyst disposed...
US20110072782 Exhaust Gas Purifying System for Internal Combustion Engine and Soot Filter Regenerating Method  
An exhaust purifying system for an engine includes: a soot filter being provided to a PM filter device to collect PM contained in exhaust gas; a regeneration execution judging unit being provided...
US20090077948 EXHAUST EMISSION PURIFICATION SYSTEM FOR INTERNAL COMBUSTION ENGINE  
An exhaust emission purification system for an internal combustion engine, which can appropriately recover the cleanup performance of a NOx purification device that is disposed on the downstream...
US20070012031 FUEL CONTROL FOR DIESEL ENGINE HAVING PARTICULATE FILTER  
There is provided a method for fueling a diesel engine having a particulate filter in its exhaust system. The method comprises supplying a main fuel injection to generate a desired torque. It also...
US20110265456 Diesel Engine and Method for Flexible Passive Regeneration of Exhaust After-Treatment Devices  
A diesel engine and method for operating a diesel engine with exhaust after-treatment device regeneration capability are disclosed. The diesel engine may employ an exhaust after-treatment device...
US20070068146 Exhaust treatment system having hydraulically-actuated air valve  
An exhaust treatment system for a power source is disclosed. The exhaust treatment system has an inlet configured to receive an exhaust flow from the power source, a filtering medium configured to...
US20120036838 EXHAUST PURIFICATION SYSTEM FOR A VEHICLE  
To provide an exhaust purification system for a vehicle with which, even in a form of vehicle in which operation and stopping of an internal combustion engine are frequently alternated between,...

Matches 1 - 50 out of 154 1 2 3 4 >