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US20100251700 |
HC-SCR System for Lean Burn Engines
Systems and methods for abating NOx emission in an exhaust stream are provided. Systems comprising hydrocarbon conversion over a partial oxidation catalyst in a slip stream and a hydrocarbon... |
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US20100236223 |
EXHAUST GAS APPARATUS AND METHOD FOR THE REGENERATION OF A NOX TRAP AND A PARTICLE FILTER
Exhaust gas apparatus for the cleaning of exhaust gas where the exhaust gas apparatus comprises an exhaust conduit section which is formed with at least two separate flow paths. Each flow path is... |
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US20060016180 |
Apparatus and method for preventing overheating of exhaust purification filter
An apparatus for preventing a filter for purifying exhaust gas emitted by a vehicle diesel engine from overheating is provided. The filter filters particulate matter in exhaust gas. Particulate... |
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US20050223699 |
Bypass controlled regeneration of NOx adsorbers
In a method and apparatus for regenerating a lean NOx adsorber, the NOx adsorber treats exhaust gases created during the combustion of gaseous fuels in general. A bypass line maintains a target... |
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US20080295499 |
Exhaust system utilizing a low-temperature oxidation catalyst
An exhaust treatment system is provided having a first exhaust passageway fluidly connected to an engine. A particulate filter and a selective catalytic reduction catalyst are situated within the... |
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US20150204226 |
Method and Apparatus for Controlling an Exhaust Gas After-Treatment System
A combustion engine exhaust gas after-treatment device includes a first selective catalytic reduction (SCR) device, a second SCR device downstream of the first and a diesel particulate filter... |
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US20100229537 |
Crankcase Ventilation System
A system for venting crankcase emissions from an engine is disclosed generally comprising a crankcase emissions conduit that communicates blow-by gases from the crankcase into the exhaust flow of... |
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US20090199540 |
METHOD FOR OPERATING A REAGENT METERING VALVE AND APPARATUS FOR CARRYING OUT THE METHOD
A method is proposed for operating a metering valve which is realized as a solenoid valve which is actuated by an electromagnet that interacts with an armature which is connected fixedly to a... |
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US20120096838 |
ARRANGEMENT AND METHOD FOR TREATMENT OF EXAHUST GASES
An exhaust gas treatment arrangement and a method thereof is contemplated for treating exhaust gases flowing along a flow path in an exhaust pipe system. The arrangement comprises a supply element... |
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US20120204541 |
EXHAUST MIXER ELEMENT AND METHOD FOR MIXING
According to one aspect of the invention, a mixer element to be placed between an internal combustion engine exhaust manifold and catalytic converter is provided. The mixer element includes a... |
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US20110067385 |
EXHAUST EMISSION PURIFYING APPARATUS FOR INTERNAL COMBUSTION ENGINE
In an exhaust emission purifying apparatus for an internal combustion engine, for adding a reducing agent for NOx to the exhaust gas to thereby purify NOx in the exhaust gas, the mixing of the... |
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US20120006011 |
INJECTION SYSTEM FOR AN INTERNAL COMBUSTION ENGINE
The present invention relates to an internal combustion engine having an injector which functions as a a positive displacement pump and dispenses an amount of lubricant fixed for each and every... |
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US20110061368 |
PARTICULATE MATTER SENSOR AND EXHAUST GAS PURIFYING APPARATUS
A particulate matter sensor includes a detection filter, a differential pressure detecting unit, an on-off valve, and a valve control unit. The detection filter is installed in an exhaust passage... |
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US20120079812 |
EXHAUST GAS PURIFICATION APPARATUS OF ENGINE AND EXHAUST GAS PURIFICATION METHOD OF ENGINE
A control unit calculates an amount of produced ammonia from an amount of a dosed urea aqueous solution according to an engine operation state, and calculates a NOx purification ratio in the case... |
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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... |
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US20050115226 |
Internal combustion engine fuel supply system
A system to supply hydrogen-rich fuel to an internal combustion engine, whereby a hydrogen-rich gas is produced from a liquid raw fuel by a hydrogen generator. The exhaust line of the internal... |
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US20120073270 |
EXHAUST SYSTEM AND RETROFITTING METHOD
A method of retrofitting an engine with an exhaust system is disclosed. The method may include placing an exhaust treatment device in an exhaust duct of the engine, and placing an exhaust heater... |
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US20080155967 |
Method for Operating a Particle Trap and Device for Carrying Out the Method
A method for operating a particle trap, in particular an open particle trap, in an exhaust gas system of an internal combustion engine, includes determining a first point in time in which the... |
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US20130091827 |
MONITOR OF AMMONIA IN DOSING SYSTEM
An ammonia dosing system has a canister whose interior contains ammonia luminophores and a delivery apparatus for delivering ammonia from the canister interior into an exhaust after-treatment... |
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US20110036078 |
METHOD FOR UREA INJECTION CONTROL
A urea injection control system (10) for a vehicle having an exhaust line (16) in fluid communication with a SCR catalyst (18) and a urea injector (14) for injecting urea into the exhaust line... |
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US20100050597 |
LOW TEMPERATURE UREA INJECTION METHOD
The invention relates to a method for injecting urea in an exhaust line of an engine (1), the urea containing ammonia which is used for chemically reducing, during a selective catalytic reduction... |
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US20100107610 |
Exhaust System for an Internal Combustion Engine
An exhaust system (1) for an internal combustion engine (2), especially for a diesel engine, includes an exhaust manifold (3) inside which at least one exhaust aftertreatment device is disposed,... |
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US20070033929 |
Apparatus with in situ fuel reformer and associated method
An apparatus comprises parallel and coaxial first and second exhaust gas passageways, a fuel reformer positioned in the first exhaust gas passageway to generate partial combustion product (e.g.,... |
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US20100000500 |
EGR SYSTEM FOR INTERNAL COMBUSTION ENGINE AND METHOD FOR CONTROLLING THE SAME
An EGR system includes a high-pressure EGR passage that provides communication between an exhaust pipe, at a portion upstream of a turbine of a turbocharger, and an intake pipe, at a portion... |
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US20090178407 |
ENHANCED ENGINE AIR BREATHING SYSTEM WITH AFTER TREATMENT DEVICE BEFORE THE TURBOCHARGER
A turbocharger arrangement providing a turbocharger, at least one treatment device, and at least one boost device. The turbocharger has a turbine and a compressor that are moveably coupled to one... |
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US20130291523 |
Cooling System for Diesel Emissions Fluid Injector
A diesel emission fluid (DEF) injection system for a machine is disclosed. The machine includes a fan or a source of flowing air, as well as a first portion of an exhaust system coupled to an... |
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US20100212315 |
CONTROL SYSTEM AND CONTROL METHOD FOR VEHICLE
A catalyst warm-up control is carried out in a state with a first exhaust valve closed and a second exhaust valve opened. After completion of the catalyst warm-up, if there is an acceleration... |
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US20130312392 |
SYSTEMS AND METHODS TO MITIGATE NOX AND HC EMISSIONS AT LOW EXHAUST TEMPERATURES
Systems and methods are provided for managing low temperature NOx and HC emissions, such as during a cold start of an internal combustion engine. The systems and methods include storing NOx and HC... |
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US20100212299 |
METHODS FOR DETERMINING WHEN TO REGENERATE EXHAUST GAS PARTICULATE FILTERS
Methods for determining when to regenerate an exhaust gas particulate filter (10), for regenerating, and for calibrating a pressure drop across such filters are disclosed. An example method... |
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US20110099977 |
EXHAUST GAS PURIFICATION APPARATUS FOR INTERNAL COMBUSTION ENGINE
An exhaust gas purification apparatus includes an exhaust passage through which exhaust gas discharged from an engine flows, a selective catalytic reduction catalyst provided in the exhaust... |
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US20100139269 |
TURBOCHARGED INTERNAL COMBUSTION ENGINE AND METHOD
A turbochargeable internal combustion engine contains a motor which has an exhaust manifold on the exhaust gas side, a turbocharger which has at least two turbocharger stages and, on the exhaust... |
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US20100212300 |
Exhaust Purification With On-Board Ammonia Production
A method of operating an engine system comprising operating a first cylinder group at a first number of strokes per combustion cycle, operating a second cylinder group at a second number of... |
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US20100132339 |
EXHAUST GAS SYSTEM
The invention concerns an exhaust gas system (1) for an internal combustion engine (11), said system (1) comprising an exhaust gas conduit (13), a particulate filter (15) and a controllable... |
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US20090133385 |
EXHAUST PURIFICATION DEVICE OF INTERNAL COMBUSTION ENGINE, AND CONTROL METHOD THEREOF
An exhaust purification device includes a particulate filter (10), an air flow meter (7) that detects the amount of fresh air flowing in an intake passageway (3), and an EGR device (30) that... |
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US20080041038 |
Catalytic Converter Configuration and Method for Desulfurizing a NOx Storage Catalytic Converter
A catalytic converter configuration for an internal combustion engine that is capable of running lean has an exhaust gas duct and a NOx storage catalytic converter arranged in the exhaust gas... |
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US20080120966 |
Exhaust Gas Purification System for Internal Combustion Engine
An exhaust passageway of the internal combustion engine is formed of a single exhaust pipe 5. A portion 11b configuring a passageway through which the exhaust gas passes and a portion 11c provided... |
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US20150260069 |
Fluid Delivery System and Method
A fluid delivery system includes a reservoir, a pump, an injector, and a pressure regulator. The reservoir encloses a fluid and includes a reservoir body forming a reservoir volume that encloses... |
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US20050247051 |
Exhaust treatment control system for an internal combustion engine
The present invention relates to an engine exhaust treatment system (20) including a first exhaust gas path (24) having a diesel particulate filter (32) and a second exhaust gas path (26) having a... |
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US20100071656 |
VALVETRAIN CONTROL STRATEGIES FOR EXHAUST AFTERTREATMENT DEVICES
A method may include operating an engine in a first valvetrain mode during a first engine operating condition, operating the engine in a second valvetrain mode different from the first valvetrain... |
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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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US20090193790 |
Method For The Regeneration Of A Particle Filter Installed In The Exhaust Gas Train Of A Vehicular Diesel Engine
A method for regenerating a soot-laden particle filter in the exhaust gas train of a diesel engine in a vehicle, wherein the engine is equipped with a fuel injection system having an injection... |
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US20050193724 |
Oxygen-enriched feedgas for reformer in emissions control system
A method and systems for supplying oxygen-enriched feedgas to a reformer. The reformer is placed on an exhaust bypass line, which has a valve upstream the reformer, for opening and closing the... |
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US20120042632 |
METHOD AND APPARATUS FOR PROCESSING EXHAUST GAS IN INTERNAL COMBUSTION ENGINE
An exhaust gas processing apparatus (26) has a bypass passage (31a) arranged in parallel with exhaust turbine (24b), an actuator (33) for opening/closing a bypass valve (32) to open/close the... |
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US20080184698 |
Exhaust Emission Control Device
An oxidation catalyst arranged frontward of a catalytic regenerative particulate filter is prevented from being clogged. Disclosed is an exhaust emission control device in which a catalytic... |
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US20120204537 |
Adaptive diesel particulate filter regeneration control and method
An after-treatment device that includes a diesel particulate filter (DPF) requiring periodic regeneration includes a sensor providing a signal indicative of a soot accumulation and at least one... |
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US20080209892 |
METHOD FOR THE CLOSED-LOOP CONTROL OF THE REGENERATION OF A PARTICLE FILTER
The invention concerns a method for the closed-loop control of the regeneration of a particle filter in the exhaust gas system of an internal combustion engine, wherein the burn-off of particles... |
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US20130239554 |
EXHAUST GAS TREATMENT SYSTEM HAVING A SOLID AMMONIA GAS PRODUCING MATERIAL
An exhaust gas treatment system for an internal combustion engine is provided, including an exhaust gas conduit, a pressurized vessel, a selective catalytic reduction (“SCR”) device, and a control... |
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US20110126525 |
NOVEL SCR CATALYSTS AND AFTER-TREATMENT DEVICES FOR DIESEL ENGINE EXHAUST GAS
Disclosed is an SCR catalyst composition having improved NOx conversion and a device for post-treating diesel engine exhaust gas using the same. The SCR catalyst composition can effectively... |
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US20160326933 |
CONTROL DEVICE FOR INTERNAL COMBUSTION ENGINE
The control device simultaneously starts rich-spike operations for two cylinder groups. When starting the rich-spike operations, the amounts of reducing agent to be introduced into NSR catalysts... |
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US20120047879 |
FLUE GAS PURIFYING DEVICE
A flue gas purifying device includes an exhaust pipe that guides flue gas discharged from an internal combustion engine; a catalytic unit that is arranged on a downstream side to the internal... |