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US20110047969 Post injection bucketing strategy to avoid hardware cavitation  
An engine control system (18) causes fuel to be post-injected into combustion chambers by a “buffering” or “bucketing” strategy (instructions 100-111 in FIG. 3) to mitigate fuel system cavitation...
US20140353064 MODULAR EXHAUST SYSTEM  
A modular exhaust system is disclosed for treating the exhaust from a fossil fuel powered prime mover; the exhaust system includes bricks, inserts placed inside of the bricks and funnels to direct...
US20130263581 EXHAUST-PIPE INJECTION SYSTEM  
An exhaust-pipe injection system capable of accurately monitoring a lowered injection pressure generated in a fuel line due to exhaust pipe injection and appropriately perform feedback control for...
US20110072788 GASOLINE PARTICULATE FILTER REGENERATION AND DIAGNOSTICS  
A method for operating a spark-ignition engine having a three-way catalyst and a particulate filter downstream thereof, comprising: oscillating an exhaust air-fuel ratio entering the particulate...
US20140331655 Mounting Assembly for a Reductant Injector  
A mounting assembly for an injector is located in a curved portion of an exhaust line having an exhaust flow from an upstream end to a downstream end. The mounting assembly includes an indent...
US20130219871 Mounting Assembly for a Reductant Injector  
A mounting assembly for an injector is located in a curved portion of an exhaust line having an exhaust flow from an upstream end to a downstream end. The mounting assembly includes an indent...
US20130047584 SOLID SCR SYSTEM AND HEATING METHOD FOR SOLID SCR REDUCTANT USING THE SAME  
A solid SCR system includes solid state reductant, a container storing the solid state reductant, an exhaust pipe supplying gas state reductant converted from the solid state reductant and SCR...
US20130192203 EXHAUST SYSTEM  
An exhaust system includes an exhaust passage configured to receive exhaust from a combustion engine, a heat exchanger disposed within the exhaust passage, and a reductant supply fluidly connected...
US20110023468 Exhaust-Gas Processing Device for a Diesel Engine  
The present invention has an object to provide an exhaust-gas processing device for a diesel engine, able to inhibit the deterioration of the fuel-consumption and the output reduction. In order to...
US20110016853 SCR system for purifying exhaust gases in NOx  
SCR system comprising a tank for storing an additive, an injector, a pump for conveying the additive from the tank to the injector via an injection line, a primary filter located on the injection...
US20130031890 Reductant Injection Control System  
A control system for reducing nitrogen oxides in an engine exhaust of an engine includes an emissions catalyst having an inlet adapted to receive an exhaust from the engine. A reductant tank...
US20150075140 EXHAUST SYSTEM WITH A MODIFIED LEAN NOx TRAP  
An exhaust system for treating an exhaust gas from an internal combustion engine is disclosed. The system comprises a modified lean NOx trap (LNT), a urea injection system, and an...
US20140208720 CATALYTIC BURNER SYSTEM FOR DPF REGENERATION  
A system and method of effective regeneration of a diesel particulate filter used in the exhaust system of a diesel engine during low engine operating temperatures, is disclosed. Generally...
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...
US20150198073 EXHAUST AFTERTREATMENT SYSTEM WITH IN-ELBOW REDUCTANT INJECTION  
An exhaust aftertreatment system, such as for a diesel engine, includes a reductant dosing system with an injector positioned in an elbow pipe of an exhaust conduit. A tubeless mixer is positioned...
US20150152765 Reagent Injector  
An injector for injecting a reagent into an exhaust stream includes an outer tube extending through an electromagnet and surrounding an inner tube. A first end of the inner tube is sealingly fixed...
US20150068192 ENHANCED CRT ENABLEMENT BASED ON SOOT MASS STORED IN PARTICULATE FILTER  
An exhaust treatment system to treat exhaust gas includes a particulate filter and a pressure sensor. The particulate filter is configured to trap soot contained in exhaust gas. The pressure...
US20110265462 DIESEL ENGINE  
An object is to provide a diesel engine (2) capable of reliably preventing an excessive rise in temperature inside a particulate filter (10) and capable of rapidly enabling driving in a...
US20130186086 ARRANGEMENT FOR INJECTING A REDUCTANT INTO AN EXHAUST LINE OF AN INTERNAL COMBUSTION ENGINE  
An arrangement for injecting a reducing agent into an exhaust line of a combustion engine (1). An exhaust line (3) leads exhaust gases from the engine. A first turbine (4) is in the exhaust line...
US20110099976 EXHAUST SYSTEM  
An exhaust system, may include a trapping filter, a nitrogen oxide purification catalyst to eliminate nitrogen oxide of the exhaust gas, an injector that selectively injects fuel in the exhaust...
US20110146249 DEVICE FOR INJECTING AQUEOUS ADDITIVES IN A MOTOR VEHICLE EXHAUST PIPE  
This invention relates to a device for injecting aqueous additives into an exhaust pipe of a motor vehicle, including an additive tank and a pumping module for taking the additive and directing it...
US20130298530 REGENERATION ASSIST CALIBRATION  
A power system comprising an engine that produces exhaust, a fuel system that injects a fuel into the engine, an aftertreatment system that treats the exhaust, and is controller. The...
US20150113961 Diesel Engine Nox Reduction  
An engine system for treating nitrogen oxides present in an exhaust gas generated by the combustion of fuel. The engine system includes one or more long breathing lean nitrogen oxide traps that...
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.
US20100031643 AIR SYSTEM INCLUDING A VARIABLE GEOMETRY TURBOCHARGER FOR SUPPLYING AIR TO A REGENERATION SYSTEM  
A system for supplying air to a regeneration system associated with an engine is disclosed. The system may include an engine including an intake manifold and an exhaust manifold. The system may...
US20100319315 DETECTING PARTICULATE MATTER LOAD DENSITY WITHIN A PARTICULATE FILTER  
A control system includes a heater control module and a particulate matter (PM) load module. The heater control module selectively activates an electric heater to initiate regeneration in a zone...
US20110023469 HEATING EXHAUST GAS FOR DIESEL PARTICULATE FILTER REGENERATION  
An electrically heated element within the exhaust system of a diesel engine raises the exhaust temperature sufficiently at idle or similar low exhaust flow/low exhaust temperature conditions to...
US20140196443 FUEL DISPENSING SYSTEM WITH HEATING SYSTEM  
Embodiments of a heating system maintains the temperature of a fuel additive (e.g., AUS32) at and/or above freezing temperature to avoid crystallization. The heating system can form a fluid...
US20120285141 PARTICULATE FILTER REGENERATION METHOD  
A regeneration system for a filter that filters exhaust gas of an engine includes a soot loading determination module that determines soot accumulation in the filter. A regeneration control module...
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...
US20120000187 PARTICULATE FILTER REGENERATION INTERRUPTION SYSTEMS AND METHODS  
A regeneration control system for a vehicle includes a regeneration control module and a regeneration interrupt module. The regeneration control module selectively provides fuel to an oxidation...
US20150027107 NOX CONTROL DURING ENGINE IDLE-STOP OPERATIONS  
Methods and systems are provided for improving engine exhaust emissions while enabling exhaust catalyst regeneration following an engine lean event. Prior to a VDE event, or prior to an engine...
US20130061580 DIESEL PARTICULATE FILTER SYSTEM  
A diesel particulate filter (“DPF”) system that suppresses clogging of a DPF and enhances convenience including accumulated particulate matter (“PM”) quantity estimator for estimating an...
US20150007552 Diesel Particulate Filter Regeneration In Transport Refrigeration System  
A method and system are provided for performing a regeneration cycle for regenerating a diesel particulate filter (56) for removing particulate matter from a flow of engine exhaust gas from a...
US20110047982 CONTROL OF DIESEL PARTICULATE FILTER REGENERATION DURATION  
Termination of regeneration of a particulate filter may be based on a variable percent threshold of stored particulate, where the percent threshold of stored particulate depends on a current soot...
US20130160433 APPARATUS FOR MEASURING THE FILLING LEVEL OF A UREA CONTAINER HAVING AN ULTRASOUND SENSOR AND MOTOR VEHICLE HAVING A UREA CONTAINER  
An apparatus for measuring a filling level of a urea container by determining distance using sound waves (ultrasound) emitted by a sensor and echoes thereof, includes a urea container bottom and a...
US20110016848 SYSTEM AND METHOD FOR TREATING DIESEL EXHAUST GASES  
A system for treating diesel exhaust gases includes an engine for producing a diesel exhaust stream, a diesel particulate filter downstream of the engine and adapted to remove particulates from...
US20110283678 METHOD FOR CONTROLLING INJECTION OF DIESEL EXHAUST FLUID INTO AN EXHAUST PIPE OF AN INTERNAL COMBUSTION ENGINE  
A method is provided for controlling injection of Diesel Exhaust Fluid into an exhaust pipe of an internal combustion engine equipped with a Selective Reduction Catalyst. The method includes, but...
US20110146245 SULFUR DETECTION ROUTINE  
A power system comprising an engine that produces exhaust, an aftertreatment system that treats the exhaust and includes a particulate filter that traps soot from the engine, and a controller...
US20130239549 AFTERTREATMENT SYSTEM AND METHOD FOR PRE-DECOMPOSED REDUCTANT SOLUTION  
There is disclosed a method and system for pressurizing a reductant solution from a reductant storage device and superheating the pressurized reductant solution. The superheated pressurized...
US20150218992 TARGETED REGENERATION OF A CATALYST IN AN AFTERTREATMENT SYSTEM  
Systems, methods and apparatus are disclosed for targeted regeneration of a catalyst device in an exhaust aftertreatment system of an internal combustion engine. The targeted regeneration can...
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...
US20110314793 SYSTEM AND METHOD FOR DETERMINING AN AGE OF AND CONTROLLING A SELECTIVE CATALYTIC REDUCTION CATALYST  
An exhaust treatment system for exhaust gas produced by an engine includes a condition control module, a load determination module, and an age determination module. The condition control module...
US20110047973 APPARATUS, SYSTEM, AND METHOD FOR CONTROLLING MULTIPLE DIESEL PARTICULATE FILTERS  
According to one embodiment, an apparatus for controlling regeneration events on multiple diesel particulate filters (DPFs) of an exhaust after-treatment system includes a regeneration event...
US20150252699 AMBIENT HUMIDITY AND TEMPERATURE CORRECTION TO PARTICULATE FILTER SOOT RATE  
In one exemplary embodiment of the invention, a method of regenerating an exhaust gas particulate filter in a vehicle having an internal combustion engine is provided. The method includes...
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...
US20120079813 OPERATING METHODS FOR SELECTIVE CATALYTIC REDUCTION OF NOx  
Where oxygenated hydrocarbons, such as ethanol, may be considered for use as a reductant to be added to diesel or gasoline engine exhaust for promoting the catalyzed reduction of NOx to N2, there...
US20150218996 DOSING AND MIXING ARRANGEMENT FOR USE IN EXHAUST AFTERTREATMENT  
A dosing and mixing arrangement including an exhaust conduit defining a central axis; a mixing conduit positioned within the exhaust conduit; a dispersing arrangement (e.g., a mesh) disposed at...
US20150240682 SYSTEMS AND METHODS TO MITIGATE NOx AND HC EMISSIONS  
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...
US20150047326 Water Injection Exhaust Treatment System  
An exhaust aftertreatment system may include a reductant supply and diluent supply conduits, an injector and a control module. The reductant supply conduit includes a first valve controlling a...