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US20150252949 |
SYSTEM FOR STORING AMMONIA IN AND RELEASING AMMONIA FROM A STORAGE MATERIAL AND METHOD FOR STORING AND RELEASING AMMONIA
A system for storing ammonia in and releasing ammonia from a storage material capable of binding and releasing ammonia reversibly by adsorption or absorption for a process with a gradual ammonia... |
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US20100021780 |
System for Storing Ammonia In and Releasing Ammonia from a Stroage Material and Method for Storing and Releasing Ammonia
A system for storing ammonia in and releasing ammonia from a storage material capable of binding and releasing ammonia reversibly by adsorption or absorption for a process with a gradual ammonia... |
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US20060168950 |
Combination emission abatement assembly and method of operarting the same
A combination emission abatement assembly includes a first emission device such as a NOX trap and a second emission abatement device such as a soot particulate filter. Reformate gas from a fuel... |
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US20100199646 |
Catalytic reduction of NOx
A system for NOx reduction in combustion gases, especially from diesel engines, incorporates an oxidation catalyst to convert at least a portion of NO to NO2, a particulate filter, a source of... |
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US20050000210 |
Method and apparatus for desulfurizing a NOx trap
An emission abatement system comprises a plurality of NOX traps positioned in a parallel flow arrangement, a desulfurization agent supplier for supplying a desulfurization agent, a valve... |
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US20110000190 |
METHOD AND APPARATUS FOR NO2-BASED REGENERATION OF DIESEL PARTICULATE FILTERS USING RECIRCULATED NOX
In a method for performing NO2-based regeneration of a diese! particulate filter (DPF) using recirculated NOx, the DPF is regenerated by oxidizing soot in the DPF with NO2 so that CO, CO2, and NO... |
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US20050204729 |
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... |
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US20060080953 |
Method for regenerating a particle trap and exhaust system
An exhaust system purifies a gas flow of harmful substances. The exhaust system contains at least device for supplying a reducing agent, a first catalytic converter, and a particle trap, in the... |
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US20060075744 |
Apparatus and method for regenerating a particulate filter of an exhaust system of an internal combustion engine
A power system has a fuel reformer, an emission abatement device, and a fuel cell. The fuel reformer reforms hydrocarbon fuels so as to produce a reformate gas which is supplied to both the... |
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US20100293927 |
METHOD AND DEVICE FOR SAFE AND CONTROLLED DELIVERY OF AMMONIA FROM A SOLID AMMONIA STORAGE MEDIUM
Solid metal ammine complexes are applied for safe and high-density storage of ammonia to be released for use as reducing agent in selective catalytic reduction of NOx in exhaust gases. The... |
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US20080193353 |
Exhaust gas cleaning system
An exhaust gas cleaning system for NOx containing exhaust gases includes a closed passage in which an NOx containing flow of exhaust gas is conveyed from an exhaust gas source to a catalytic... |
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US20080236146 |
Method And Apparatus For Regenerating NOx Adsorbers
In a method of regenerating a NOx adsorber, the NOx adsorber is used to treat exhaust gases created during the combustion of gaseous fuels in general. Methane is introduced into a reformer or... |
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US20080120968 |
Partial wall-flow filter and diesel exhaust system and method
A exhaust system and method for venting exhaust from an engine, such as a diesel engine, through an exhaust line coupled to the engine includes a first particulate filter disposed in the exhaust... |
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US20060130462 |
Process for the catalytic NOx reduction of a thermal engine, and device for said purpose
In a process for the catalytic NOx reduction in oxygen-containing exhaust gases of a thermal engine in one or several reduction catalytic converters, hydrocarbons of the fuel of the thermal engine... |
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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... |
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US20100062296 |
Method and device for ammonia storage and delivery using in situ re-saturation of a delivery unit
Disclosed is a method for storing and delivering ammonia, wherein a first ammonia adsorbing/absorbing material having a higher vapor pressure at a given temperature than a second ammonia... |
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US20110120100 |
CATALYST AND METHOD OF MANUFACTURE
A catalyst system comprising a first catalytic composition comprising a homogeneous solid mixture containing at least one catalytic metal and at least one metal inorganic support. The pores of the... |
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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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US20070266697 |
Exhaust emission purifying apparatus for engine
A technology for purifying an exhaust emission from an engine is provided, in which a misjudgment caused by a time lag between the abnormality detection and an abnormality judgment is avoided, in... |
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US20070033927 |
Automotive diesel exhaust HC dosing valve
A dosing valve assembly is disclosed for administering a reducing agent into an exhaust stream within an exhaust manifold of an internal combustion engine. The dosing valve assembly comprises a... |
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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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US20110146246 |
REGENERATION ASSIST TRANSITION PERIOD
A power system comprising an engine that produces exhaust, a particulate filter that traps soot from the engine, and a controller that switches the power system from a first operation mode into a... |
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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... |
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US20080141662 |
FLUID INJECTING AND MIXING SYSTEMS FOR EXHAUST AFTER-TREATMENT DEVICES
A system for applying secondary fluids to vehicular exhaust after-treatment apparatus utilizes a mixing chamber coupled for receipt of a portion of the vehicle's exhaust flow. A source of... |
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US20070119153 |
Superheated urea injection for aftertreatment applications
An urea SCR system for enhancing internal combustion engine aftertreatment applications includes a supply tank containing aqueous urea, a delivery pump operatively connected to the supply tank and... |
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US20070012032 |
Hybrid system comprising HC-SCR, NOx-trapping, and NH3-SCR for exhaust emission reduction
An exhaust aftertreatment system is provided with a first SCR catalyst, a NOx adsorber-catalyst, and an ammonia-SCR catalyst. The first catalyst is generally a hydrocarbon-SCR catalyst, but can be... |
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US20150210159 |
PLASTIC TANK FOR AN OPERATING FLUID
A plastic tank for an operating fluid, in particular a urea-water solution, includes a tank wall and at least one duct being integrated in the tank wall and forming a part of a delivery line for... |
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US20080060348 |
Emissions reduction system
An engine, an exhaust system, and a method for reducing NOx in an exhaust stream are provided. The system comprises a first SCR catalyst, a second SCR catalyst, and a particulate filter positioned... |
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US20110239631 |
Ring Reductant Mixer
An engine exhaust aftertreatment system including a ring disposed in an exhaust conduit. The ring assists in the introduction and conversion of a reductant introduced by an injector. |
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US20070079602 |
Thermal management of hybrid LNT/SCR aftertreatment during desulfation
In an exhaust aftertreatment system comprising a NOx adsorber-catalyst followed by an SCR catalyst, means are provided for preventing the SCR catalyst from becoming heated to near the same peak... |
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US20060086080 |
Engine exhaust gas cleaning method and system
An engine exhaust gas cleaning method and system, which can effectively reduce emission amounts of particular components, such as NOx, contained in exhaust gas by adding an additive, such as urea... |
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US20060053776 |
Management of thermal fluctuations in lean NOx adsorber aftertreatment systems
A method and apparatus manage heat in exhaust gas in an aftertreatment system that employs a lean NOx adsorber. A de-sulfation hot line and cooling line are employed to control exhaust gas... |
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US20070209349 |
Method And Device For Introducing A Reagent Into An Exhaust Gas Channel Of An Internal Combustion Engine
A procedure to introduce a reagent substance into the exhaust duct of an internal combustion engine and a device to implement the procedure are proposed. At least one catalytic converter is... |
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US20060288692 |
Exhaust treatment system
An exhaust treatment system of a power source includes a filter having a housing with an inlet and an outlet, and a regeneration device disposed outside of the housing of the filter. The... |
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US20110061374 |
EXHAUST GAS TREATMENT SYSTEM
An exhaust gas treatment system includes an exhaust passage through which exhaust gas from an internal combustion engine is allowed to flow, a selective catalytic reduction catalyst provided in... |
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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... |
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US20070169469 |
Particulate loading monitoring system
A particulate trap regeneration system is provided, which may include a particulate trap having a filter medium configured to remove one or more types of particulate matter from an exhaust flow of... |
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US20070144152 |
Procedure and control unit to operate an integrated SCR/DPF system
A procedure is introduced to operate a particle filter, which is disposed in the exhaust gas stream of an internal combustion engine and which collects particles from the exhaust gas and possesses... |
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US20060272319 |
Segregated catalyzed metallic wire filter for diesel soot filtration
A filter for removing soot particles from the exhaust gas of a diesel engine comprises a plurality of hollow channels which contain therein a metal mesh. The metal mesh can be coated with an... |
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US20160160723 |
METHOD AND SYSTEM FOR REMOVING ASH WITHIN A PARTICULATE FILTER
Methods and systems are provided for injecting water to reduce an ash load on a PF. In one example, a method may include injecting water from a reservoir to between a PF and a three-way catalyst... |
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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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US20110185709 |
Low Temperature Diesel Particulate Matter Reduction System
A system for treating diesel exhaust is disclosed. The system includes a first filter including layers of filtration material positioned between layers of corrugated metallic foil. The metallic... |
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US20100212292 |
Assembly and Method for Introducing a Reducing Agent into the Exhaust Pipe of an Exhaust System of an Internal Combustion Engine
An assembly and method for introducing a reducing agent into an exhaust pipe of an exhaust system of an internal combustion engine, in particular of a motor vehicle includes a feed connector which... |
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US20080053071 |
System and Method for Reducing NOx Emissions
An exhaust system, comprising of a first emission control system in the exhaust system, said emission control system having a at least a first region and a second region, said second region... |
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US20090151323 |
METHOD AND DEVICE FOR OPERATING AN EXHAUST-GAS AFTER-TREATMENT SYSTEM
The invention relates to a method for operating a motor vehicle exhaust-gas aftertreatment system (1), in which oxygen is fed to and removed from the oxygen tank (8) of an exhaust-gas... |
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US20090038296 |
Liquid tank, breather device, and exhaust gas purification device for engine
In a liquid tank provided with a pressure relief vent hole, a shielding member surrounding the vent hole is disposed. The shielding member forms an isolated chamber communicated with the vent... |
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US20090013670 |
Reservoir for a fluid dosing system
A reservoir for holding a fluid for supply to a fluid dosing device for introducing the fluid into a gas flow, the reservoir comprising: an outer container; an inner container located within the... |
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US20120020857 |
DOSING SYSTEM HAVING RECIRCULATION HEATING AND VACUUM DRAINING
A reductant dosing system is disclosed. The reductant dosing system may have a supply of reductant, a reductant nozzle, and a pump with an inlet and an outlet. The reductant dosing system may also... |
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US20110289903 |
DEVICE AND METHOD FOR REGENERATING A PARTICULATE FILTER ARRANGED IN THE EXHAUST SECTION OF AN INTERNAL COMBUSTION ENGINE
A device and a method for regenerating a particulate filter that is arranged in the exhaust tract of an internal combustion engine. There is disposed at least one NO oxidation catalytic converter... |
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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... |