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US20090308057 |
EXHAUST LINE OF A DIESEL ENGINE AND DESULFATION METHOD
A method for desulfating an NOx trap of an exhaust line of a diesel engine, the method to extract during the operation of the engine at least one portion of the fixed sulphur compounds in the NOx...
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US20090301059 |
EXHAUST PURIFICATION DEVICE OF INTERNAL COMBUSTION ENGINE
In an internal combustion engine, an NO X selective reduction catalyst ( 15 ) is arranged in the engine exhaust passage, and a urea aqueous solution feed valve ( 17 ) is arranged in the engine...
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US20090301068 |
EXHAUST-GAS PURIFICATION APPARATUS AND METHOD FOR PURIFYING EXHAUST GAS
A NOx catalyst is provided in an exhaust passage of an internal combustion engine for selectively purifying NOx in exhaust gas with a reducing agent. A charging unit charges the reducing agent at...
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US20090301067 |
REAGENT DOSING SYSTEM AND METHOD OF DOSING REAGENT
A method of dosing a reagent into an exhaust gas stream of an internal combustion engine having an SCR catalyst, the method comprising injecting reagent from a reagent tank into the exhaust gas...
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US20090301069 |
Exhaust Gas Cleaning Component for Cleaning an Internal Combustion Engine Exhaust Gas
A component for cleaning the exhaust gas in an internal combustion engine has a carrier body with a plurality of flow ducts for the exhaust gas. At least some of the walls ( 3 ) of the flow ducts...
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US20090301063 |
EXHAUST GAS PURIFICATION DEVICE
An ECU corrects a fuel addition interval, based on an amount of change between an exhaust gas temperature at present and a basic exhaust gas temperature obtained when a basic addition interval is...
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US20090301066 |
CONTROL OF SELECTIVE CATALYTIC REDUCTION
A method of controlling a rate of introduction of a NO x reducing substance or precursor to a catalyst component. The method comprises obtaining the amount of NO x entering the catalyst...
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US20090293459 |
EXHAUST GAS PURIFICATION DEVICE OF INTERNAL COMBUSTION ENGINE
An SCR catalyst is provided in an exhaust pipe of an engine and a urea solution addition valve is provided upstream of the SCR catalyst in the exhaust pipe. An ECU calculates ammonia adsorption...
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US20090293454 |
EXHAUST EMISSION CONTROL DEVICE
In an exhaust emission control device with NO x -occlusion reduction catalyst 5 incorporated in an exhaust passage 2,4 for reduction and purification of NO x , a fuel reforming catalyst...
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US20090288402 |
Emission Treatment Catalysts, Systems and Methods
Zoned diesel oxidation catalysts containing a higher precious metal loading in the inlet zone that the outlet zone and an equal or shorter length inlet zone are described. Emission treatment...
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US20090288400 |
Exhaust Gas Purifying Device for Diesel Engine
The present invention relates to an exhaust gas purifying device for a diesel engine, which purifies efficiently Nitrogen Oxides (NOx) and Particulate Matters (PM) contained in exhaust gases of the...
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US20090288396 |
EXHAUST EMISSION CONTROL DEVICE FOR INTERNAL COMBUSTION ENGINE
An exhaust emission control device is used for an engine and is applied to an exhaust gas purifying system. The system has an NOx catalyst disposed in an exhaust passage of the engine to promote...
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US20090288397 |
EXHAUST GAS PURIFICATION DEVICE OF INTERNAL COMBUSTION ENGINE
An SCR catalyst is provided in an exhaust pipe of an engine and a urea solution addition valve is provided upstream of the SCR catalyst in the exhaust pipe. An ECU controls urea solution addition...
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US20090288395 |
METHOD FOR OPERATING A REAGENT METERING VALVE AND APPARATUS FOR CARRYING OUT THE METHOD
The invention relates to a method for operating a metering valve arranged in an exhaust gas region of an internal combustion engine for metering a reagent or a precursor of a reagent, comprising a...
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US20090282809 |
Exhaust purification device for internal combustion engine
There are provided a fuel addition means which adds fuel into the exhaust, a NOx storage reduction catalyst by which NOx which has been stored is reduced by fuel which is added by the fuel addition...
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US20090277161 |
Device For Supplying A Reducing Agent Solution Into An Exhaust System And Corresponding Exhaust System, Method and Vehicle
A device for supplying reducing agent solution into an exhaust system, includes a reservoir for reducing agent solution and a delivery device for delivering reducing agent solution from the...
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US20090277162 |
INJECTION METHOD AND DEVICE FOR INJECTING A REDUCING SUBSTANCE INTO AN EXHAUST SYSTEM OF AN INTERNAL COMBUSTION ENGINE
An injection method and device for injecting a reducing liquid additive into an exhaust system of an internal combustion engine; the injection device in provided with: a tank containing the...
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US20090277160 |
EXHAUST GAS CONTROL APPARATUS AND METHOD FOR AN INTERNAL COMBUSTION ENGINE
An exhaust gas control apparatus for an internal combustion engine, including a three-way catalyst, a NO X storage-reduction catalyst, a rich controlling mechanism performing control to make an...
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US20090272100 |
EXHAUST PURIFICATION DEVICE OF INTERNAL COMBUSTION ENGINE
An engine with an exhaust passage in which a catalyst purifying NO x and an NO x adsorbent adsorbing NO x in an exhaust gas are arranged successively from the upstream side. After engine startup...
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US20090272106 |
EXHAUST GAS TREATMENT UNIT
The present invention relates to an exhaust gas treatment unit for an exhaust system of a combustion engine, in particular of a motor vehicle, includes a housing, a plurality of exhaust gas...
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US20090266061 |
EXHAUST EMISSION CONTROL DEVICE
An exhaust emission control device is provided which can effectively regenerate a NO x absorption reduction catalyst even in a relatively low temperature region to improve NO x reduction ratio...
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US20090266058 |
Exhaust system implementing feedforward and feedback control
An exhaust system for use with a combustion engine is disclosed. The exhaust system may have an exhaust passageway, and a reduction catalyst disposed within the exhaust passageway. The exhaust...
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US20090266056 |
EXHAUST EMISSION CONTROL DEVICE
Fuel added to exhaust gas is uniformly afforded to catalytic surfaces of a NO x -adsorption reduction catalyst so that overall regeneration of the NO x -adsorption reduction catalyst proceeds...
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US20090266057 |
EXHAUST PURIFICATION DEVICE OF AN INTERNAL COMBUSTION ENGINE
In an internal combustion engine, an NOX selective reducing catalyst is arranged in the engine exhaust passage, and an NOX storage catalyst able to store NOX contained in the exhaust gas is...
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US20090255233 |
Exhaust purification device and exhaust purification method of internal combustion engine
An SO X trap catalyst ( 11 ) in which at least one of an alkali metal and alkali earth metal is carried diffused is arranged in an exhaust passage of an internal combustion engine. By holding the...
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US20090255236 |
LOW TEMPERATURE HYDROCARBON SCR
A method of reducing nitrogen oxides (NO x ) in a flowing combustion exhaust gas to N 2 , which method comprising oxidising nitrogen monoxide to nitrogen dioxide on a transition metal/elite...
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US20090255235 |
Sulfur-Resistant Exhaust Gas Aftertreatment System For The Oxidation Of NO
An arrangement for aftertreatment of exhaust gas for lean-burn internal combustion engines such as diesel engines and Otto engines with direct injection includes a catalyzer for oxidation of...
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US20090249772 |
EXHAUST GAS PURIFICATION DEVICE
An exhaust gas purification device is provided. The device includes: in an exhaust gas passage for a combustion exhaust gas containing a nitrogen oxide, a hydrocarbon, and an oxygen in a larger...
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US20090241519 |
METHOD FOR THE OPERATION OF AN EMISSION CONTROL SYSTEM LOCATED IN AN EXHAUST GAS ZONE OF AN INTERNAL COMBUSTION ENGINE
Disclosed is a method for operating an emission control system that is located in an exhaust gas zone of an internal combustion engine and comprises a catalytic layer causing an oxidation reaction...
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US20090241521 |
APPARATUS FOR PURIFYING EXHAUST GAS
An apparatus for purifying exhaust gas may include a CPF device primarily oxidizing hydrocarbon and carbon monoxide in the exhaust gas by using a first DOC, and trapping and regenerating...
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US20090241523 |
LUBRICANT COMPOSITIONS COMPRISING COLLOIDAL DISPERSIONS OF RARE EARTH COMPOUNDS AND CATALYTIC COMBUSTION OF ENGINE EXHAUST SOOTS THEREWITH
Engines equipped with an exhaust line fitted with a particulate filter, in which the particulates contained in the exhaust gas are trapped on such filter, and wherein the trapped particulates are...
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US20090235649 |
Method for Regenerating a Diesel Particulate Filter
A method is disclosed for regenerating a diesel particulate filter without excessively increasing NO 2 emissions. The system includes a fuel delivery device, an oxidation catalyst, and a diesel...
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US20090235645 |
EXHAUST PURIFICATION SYSTEM, CONTROL APPARATUS AND CONTROL METHOD THEREFOR
An exhaust gas purification control apparatus for an internal combustion engine instructs an exhaust fuel valve to inject additive fuel when a diesel particulate filter is to be regenerated, and...
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US20090235652 |
EXHAUST GAS PURIFICATION APPARATUS
An exhaust gas purification apparatus includes a honeycomb structure which has an introduction end face and an exhaust end face opposite to the introduction end face in the longitudinal direction...
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US20090235647 |
Method for Controlling Exhaust Gas Purification System and Exhaust Gas Purification System
In regeneration control in a manual regeneration mode, when a first exhaust gas temperature (Tg 1 ) of an exhaust gas flowing into an oxidation catalyst device ( 12 a ) is higher than a...
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US20090235646 |
EXHAUST GAS PURIFICATION METHOD AND SYSTEM
In regeneration control of an exhaust gas purification system ( 1 ) equipped with NOx occlusion reduction catalyst ( 11 ), a decision is made whether operating state of an engine is in a first...
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US20090229256 |
CONTROL UNIT FOR EXHAUST GAS PURIFYING APPARATUS
PM elimination or sulfur release are performed on both exhaust systems (exhaust passages 13 L, 13 R) using a common procedure regardless of the state of a catalyst arranged in each one of the...
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US20090229259 |
CATALYST-CARRYING FILTER
A catalyst-carrying filter includes a gas-inflow-side layer and a gas-outflow-side layer, the gas-inflow-side layer including a PM collection layer that has a small average pore size and a PM...
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US20090223208 |
EXHAUST GAS PURIFYING APPARATUS FOR INTERNAL COMBUSTION ENGINE
The present invention provides, as one aspect, an exhaust gas purifying apparatus for an internal combustion engine including a setting unit that sets commanded values of an amount and a period of...
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US20090223211 |
METHOD AND DEVICE FOR PROVIDING A GAS FLOW CONTAINING A REDUCING AGENT
A method for providing a reducing agent-containing gas flow in the exhaust system of an internal combustion engine includes providing at least one reducing agent precursor, evaporating the...
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US20090217650 |
Device for introducing a liquid substance into the exhaust gas of an internal combustion engine
A device for introducing a liquid reducing agent into the exhaust gas of an internal combustion engine includes an injection device and a retaining device. By means of the latter, the injection...
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US20090217647 |
METHOD AND DEVICE FOR REGENERATING THE PARTICLE FILTER OF AN INTERNAL COMBUSTION ENGINE DURING THE TRANSIENT OPERATING PHASES THEREOF
The invention relates to a method for regenerating a particle filter on the exhaust line of an internal combustion engine, in which fuel is injected into the exhaust tube upstream of an oxidation...
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US20090217649 |
EXHAUST SYSTEM FOR A MOTOR VEHICLE AND PROCESS FOR REGENERATING A PARTICULATE FILTER IN AN AUTOMOTIVE EXHAUST SYSTEM
An exhaust system for a motor vehicle comprises a particulate filter, upstream of which an oxidation catalyst is provided, and a regeneration device for the particulate filter. The regeneration...
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US20090211232 |
Emission Treatment Systems and Methods Using Passivated Surfaces
Provided are exhaust systems, components, and catalytic articles that have been passivated for use in conjunction with diesel engines that includes a NOx abatement system that uses a reductant....
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US20090205325 |
Compact Exhaust Gas Aftertreatment System
The invention is directed to a device for converting exhaust gas constituents of an internal combustion engine by means of at least one catalyzer and/or particle filter and/or particle separator...
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US20090205617 |
EGR CONTROL SYSTEM
In an internal-combustion engine with exhaust-gas-recirculation system, electronic control means are provided designed to process an analytical model of the quantities “effective lambda” and...
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US20090205322 |
Exhaust Gas Aftertreatment System and Exhaust Gas Cleaning Method
An exhaust gas aftertreatment system, and a method for exhaust gas purification, has a first oxidation catalyst device, a NOx catalyst device for removing nitrogen from the exhaust gas, a device...
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US20090199546 |
Device For Reducing Dibenzodioxin Emissions, Dibenzofuran Emissions And Particle Emissions
A transition metal-containing catalyzer is arranged on a particle filter installed in the exhaust gas line of an internal combustion engine and cannot be separated therefrom without being...
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US20090193795 |
METHOD AND APPARATUS FOR REGENERATING AN AFTERTREATMENT DEVICE FOR A SPARK-IGNITION DIRECT-INJECTION ENGINE
The disclosure sets forth operating a spark-ignition, direct-fuel injection internal combustion engine equipped with an exhaust aftertreatment system including a lean-NOx adsorber device. The...
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US20090193794 |
Exhaust system implementing SCR and EGR
An exhaust system for use with an engine is disclosed. The exhaust system may have an exhaust passageway, a reduction catalyst located within the exhaust passageway, and a particulate filter...
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