Entries |
Document | Title | Date |
20080202107 | SCR ON LOW THERMAL MASS FILTER SUBSTRATES - Provided are selective catalytic reduction (SCR) filters that effectively provide simultaneous treatment of particulate matter and NO | 08-28-2008 |
20080202108 | Reductant supply system for a waste gas cleaning catalyst of an internal combustion engine and a plug-in connection for connecting heatable fluid ducts - The invention relates to a reductant supply system for a waste gas cleaning catalyst ( | 08-28-2008 |
20080250778 | Excess NH3 storage control for SCR catalysts - A method of regulating an amount of NH3 stored in a catalyst of an exhaust after-treatment system includes determining a mass of NH3 into the catalyst based on a dosing rate of a dosing agent that is injected into an exhaust stream upstream of the catalyst and determining a mass of NH3 out of the catalyst. An accumulated mass of NH3 within the catalyst is calculated based on the mass of NH3 into the catalyst and the mass of NH3 out of the catalyst. The dosing rate is regulated based on the accumulated mass of NH3 within the catalyst. | 10-16-2008 |
20090019842 | EXHAUST PURIFICATION DEVICE FOR ENGINE - An exhaust purification device for an engine comprises a catalyst device that purifies the exhaust gas of the engine by using an additive; a venturi-shaped mixing chamber that is disposed upstream from the catalyst device and extends from a taper portion with a diameter tapering downstream to continue to a constricted portion with a minimum diameter and then to a flared portion with a diameter that is increased in the downstream direction; a swirl-generating device that is disposed in vicinity of a most upstream section of the taper portion of the mixing chamber and generates a swirling flow in the exhaust gas; and an additive-injection device that is disposed upstream from the constricted portion of the mixing chamber and downstream from the swirl-generating device, and injects the additive into the mixing chamber. | 01-22-2009 |
20090031713 | ANTIFREEZING UREA SOLUTION FOR UREA SCR SYSTEM AND UREA SCR SYSTEM USING THE SAME - An antifreezing urea solution is disclosed which is supplied from a urea solution tank to an adding value to be injected to an SCR catalyst disposed in an exhaust passage of an internal combustion engine. The antifreezing urea solution includes a mixed solution composed of a concentrated urea solution with a urea concentration of 30 wt % or more, and an organic solvent of an alcohol family with 1 to 7 carbon atoms having a hydrophilic group, wherein the urea solution and the organic solvent of the alcohol family are mixed at a mixture ratio of 7:1 respectively (in a volume ratio) or more, providing a freezing point of −30° C. or less. | 02-05-2009 |
20090038299 | Reducing agent injector having purge heater - A method of introducing a reducing agent into an exhaust stream may include injecting the reducing agent into the exhaust gas stream using a reducing agent injector. The method may further include selectively heating a nozzle of the reducing agent injector to reduce residue on the nozzle. | 02-12-2009 |
20090107126 | Fluid supply connection for reductant delivery unit for selective catalytic reduction systems - A reductant delivery unit ( | 04-30-2009 |
20090151341 | APPARATUS FOR REDUCING NITROGEN OXIDE CONTAINED IN EXHAUST GAS - An apparatus for reducing NO | 06-18-2009 |
20090199550 | Catalytic Converter Assembly in an Exhaust Gas Posttreatment System - The invention relates to a catalyst arrangement in an exhaust gas after-treatment system of an internal combustion engine comprising an exhaust gas line in which an SCR catalyst is positioned in the direction of flow of the exhaust gas. A reducing agent production system has an NOx and CO/H2 production unit and a combined NOx storage/ammonia production unit in the standard gas-carrying path of the reducing agent production system which supplies ammonia as the reducing agent. The NOx and CO/H2 production unit is at least temporarily supplied via a fuel supply and an air supply with starting products for producing ammonia. The combined NOx storage/ammonia production unit has a plurality catalyst sections having different characteristic properties or functionalities, enabling a higher ammonia yield in the combined NOx storage/ammonia production unit. The catalyst formulations make it possible to adjust a temperature profile that additionally influences the ammonia production rate and contributes to higher ammonia yields. | 08-13-2009 |
20090255241 | Method of Forming a Catalyzed SCR Filter - Provided is an emission treatment system and method for simultaneously remediating the nitrogen oxides (NOx), particulate matter, and gaseous hydrocarbons present in diesel engine exhaust streams. The emission treatment system has an oxidation catalyst upstream of a soot filter coated with a material effective in the Selective Catalytic Reduction (SCR) of NOx by a reductant, e.g., ammonia. Also provided is a method for disposing an SCR catalyst composition on a wall flow monolith that provides adequate catalyst loading, but does not result in unsuitable back pressures in the exhaust. | 10-15-2009 |
20090266063 | SELECTIVE CATALYTIC REDUCTION CATALYST SYSTEM WITH EXPANDED TEMPERATURE WINDOW - According to one embodiment of the present invention a selective reduction catalyst system with a broad temperature window for lean-burn gasoline and diesel engines is disclosed. The system includes a first and second zone, wherein the first zone is composed of an iron SCR catalyst and a second zone is composed of a copper SCR catalyst, and wherein the second zone is positioned downstream of the first zone. In another embodiment, a small copper SCR catalyst is placed in front of a second zone composed of an iron SCR catalyst and a third zone composed of a copper SCR catalyst, wherein the volume of the first copper SCR catalyst is a fraction of the volume of the second copper SCR catalyst. In yet another embodiment, a diverter valve would be included in the system to eliminate any NO | 10-29-2009 |
20100005790 | Selective Catalytic Reduction (SCR) Catalyst Injection Systems - A Selective Catalytic Reduction (SCR) injection system for mixing reductant with exhaust gasses. The system includes a plate disposed between walls of an entrance portion and an egress section of the exhaust pipe. The plate intercepts exhaust gasses entering the entrance section of the exhaust pipe and directs such exhaust gasses through apertures in a wall of a reductant-introducing conduit. The conduit has an outlet disposed in the egress section of the exhaust pipe. The wherein dimensions of the apertures in the wall and dimensions in the outlet of the conduit being selected to increase the velocity of the exhaust leaving the outlet of the conduit into the egress section of the exhaust pipe relative to the velocity of the exhaust gases in the entrance section. | 01-14-2010 |
20100077738 | System for Reducing NOx in Exhaust - Systems and methods are provided for reducing NOx emissions from a vehicle including an engine having an exhaust. In one example, the system comprises a NOx reducing system coupled to the engine exhaust including a base metal zeolite, said NOx reducing system including a first layer with a first pore size and a second layer with a second pore size, said first pore size being smaller than said second pore size. | 04-01-2010 |
20100077739 | Exhaust system implementing dual stage SCR - An exhaust system for use with an engine is disclosed. The exhaust system may have a passageway, a flow control device situated to feed reductant into the passageway, and a particulate collection device located in fluid communication with the passageway downstream of the flow control device. The particulate collection device may be catalyzed to promote NO | 04-01-2010 |
20100101221 | CATALYSTS, SYSTEMS, AND METHODS FOR REDUCING NOx IN AN EXHAUST GAS - Catalysts, systems, and methods disclosed herein provide for reduced NO | 04-29-2010 |
20100132345 | MIXING DEVICES FOR SELECTIVE CATALYTIC REDUCTION SYSTEMS - A selective catalytic reduction (SCR) system includes an exhaust pipe for receiving an exhaust gas from an engine. A selective catalytic reduction (SCR) unit is provided downstream of the exhaust pipe. A first mixing element including a meshed body defines a first surface, a second surface, and a plurality of openings extending from the first surface to the second surface. The first surface and second surface are parallel to each other and define an angle relative to a flow direction of the exhaust flow. The angle is less than 90 degrees. | 06-03-2010 |
20100139259 | EXHAUST PURIFICATION DEVICE OF AN INTERNAL COMBUSTION ENGINE - In an internal combustion engine, an NO | 06-10-2010 |
20100146950 | EXHAUST GAS PURIFICATION DEVICE - An exhaust gas purification device is provided that is capable of diffusing and introducing a reducing agent into a NO | 06-17-2010 |
20100205947 | S STORAGE CATALYST AND EXHAUST-GAS CONVERTING APPARATUS - An S storage catalyst | 08-19-2010 |
20100223919 | NOX REDUCTION CATALYST AND EXHAUST SYSTEM USING THE SAME - An NOx reduction catalyst and an exhaust system using the same may include an NOx reduction catalyst mounted at an exhaust pipe through which exhaust gas passes, wherein the NOx reduction catalyst includes first and second catalyst layers coated on a carrier, the first catalyst layer being disposed close to the exhaust gas, and the second catalyst layer being disposed close to the carrier, wherein a portion of nitrogen oxide contained in the exhaust gas is oxidized while passing through the first catalyst layer, and the oxidized nitrogen oxide is stored in the second catalyst layer, wherein the nitrogen oxide stored in the second catalyst layer is released through a substitution reaction with an additionally injected fuel, and wherein the released nitrogen oxide is reduced by the additionally injected fuel in the first catalyst layer. | 09-09-2010 |
20100229542 | TEXTURIZED PURIFICATION STRUCTURE INCORPORATING AN ELECTROCHEMICAL CATALYST SYSTEM - A structure for the purification of a polluted gas comprising a porous matrix of an inorganic material, in the form of interconnected grains and an electrochemical system for the treatment of said gas, formed by a reduction catalyst A for reducing the polluting species of the NO | 09-16-2010 |
20100236225 | EXHAUST POSTTREATMENT ARRANGEMENT WITH REDUCING AGENT RESERVOIR, AND METHOD FOR POSTTREATMENT OF EXHAUST GASES - Proposed are an exhaust gas posttreatment arrangement and a method for the reduction of pollutants, in particular for the selective catalytic reduction of nitrogen oxides. The arrangement has an exhaust line for conducting the exhaust gas of an internal combustion engine to a treatment unit for the reduction of the pollutants, and at least one reservoir for storing a reducing agent for use in the treatment unit. The reservoir is arranged in the region of the exhaust line and extends parallel to the exhaust line, and is in heat-conducting contact with the exhaust line and/or with the exhaust gas in the exhaust line. | 09-23-2010 |
20100242453 | Fuel cell/engine hybrid power system - A power system has an energy conversion device and a volume expansion engine. The energy conversion device is configured to receive fuel, implement an electro-chemical process to generate an electrical output, and produce a first exhaust flow. The volume expansion engine is configured to receive the first exhaust flow, combust the first exhaust flow to generate a power output, and produce a second exhaust flow directed into the energy conversion device. | 09-30-2010 |
20100242454 | NH3-MONITORING OF AN SCR CATALYTIC CONVERTER - The present invention relates to an internal combustion engine ( | 09-30-2010 |
20100287918 | NOx ADSORBING APPARATUS AND EXHAUST-GAS CONVERTING APPARATUS | 11-18-2010 |
20110047993 | EXHAUST PURIFICATION SYSTEM OF INTERNAL COMBUSTION ENGINE - In an exhaust purification system of an internal combustion, comprising a NO | 03-03-2011 |
20110047994 | EXHAUST GAS PURIFICATION APPARATUS - An exhaust gas purification apparatus includes an exhaust gas passage, a first oxidation catalyst, a selective catalytic reduction catalyst, an oxidation-reduction catalyst and a urea water supply device. Exhaust gas is flowed through the first oxidation catalyst. The first oxidation catalyst is disposed in the exhaust gas passage. The selective catalytic reduction catalyst is disposed downstream of the first oxidation catalyst. The oxidation-reduction catalyst is disposed downstream of the selective catalytic reduction catalyst. The oxidation-reduction catalyst has reducing property and oxidizing property which are influenced by temperature, wherein the oxidizing property of the oxidation-reduction catalyst is greater than the reducing property of the oxidation-reduction catalyst under a temperature that is higher than a temperature under which the reducing property of the oxidation-reduction catalyst is greater than the oxidizing property of the oxidation-reduction catalyst. The urea water supply device supplies urea water upstream of the selective catalytic reduction catalyst. | 03-03-2011 |
20110072806 | EXHAUST GAS PURIFICATION APPARATUS - In an exhaust gas purification apparatus ( | 03-31-2011 |
20110146252 | CANISTER AFTERTREATMENT MODULE - An aftertreatment module for use with an engine is disclosed. The aftertreatment module may have a canister, and a wall disposed within the canister and axially-dividing the canister into a first portion and a second portion. The aftertreatment module may also have a first treatment device disposed within the first portion, an inlet connected to the first portion, a second treatment device disposed within the second portion, an outlet connected to the second portion, and an external tube extending from the first portion to the second portion. | 06-23-2011 |
20110185710 | EXHAUST GAS PURIFYING DEVICE FOR INTERNAL COMBUSTION ENGINE, AND SWIRL GENERATING DEVICE - An exhaust gas purifying device for an internal combustion engine, provided with a swirl generating means for generating a swirl which has a strong swirl force and applying reduced resistance to the swirl. A swirl generating device for generating a swirl which has a strong swirl force and applying reduced resistance to the swirl is also provided. An exhaust gas purifying device ( | 08-04-2011 |
20110209466 | CATALYST COMPOSITION AND CATALYTIC REDUCTION SYSTEM COMPRISING YTTRIUM - A catalyst composition, a catalytic reduction system including the catalyst composition and a system using the catalytic reduction system are provided. The catalyst composition includes a templated metal oxide substrate and a catalyst material. The templated metal oxide substrate comprises yttrium and has a plurality of pores. Yttrium is present in an amount from about 0.05 mol percent to about 3 mol percent of the substrate. The catalyst material includes a catalyst metal disposed on the templated metal oxide substrate. | 09-01-2011 |
20110214416 | EXHAUST EMISSION CONTROL DEVICE - An object of the invention is to make it possible to introduce exhaust gas | 09-08-2011 |
20110214417 | EXHAUST GAS PURIFICATION SYSTEM FOR INTERNAL COMBUSTION ENGINE - Concerning an internal combustion engine equipped with an NSR catalyst and an SCR, this invention is intended to provide an exhaust gas purification system for an internal combustion engine, the system being used to suppress degradation of emissions due to blow-through of NOx. The exhaust gas purification system, used for the internal combustion engine susceptible of lean-burn operation, includes an NSR catalyst disposed in an exhaust passageway of the internal combustion engine, an SCR disposed on a downstream side relative to the NSR catalyst, and an element for executing rich-spike control at a predetermined interval during lean-burn operation. On the basis of a first rule as a relationship between the time interval and the amount of NH | 09-08-2011 |
20110214418 | COMPONENT CARRIER FOR A DOSING SYSTEM - A component carrier ( | 09-08-2011 |
20110219756 | METHOD FOR OPERATING AN EVAPORATION UNIT FOR PRODUCING GASEOUS AMMONIA AND MOTOR VEHICLE HAVING AN EVAPORATION UNIT - A method for operating an evaporation unit for converting a volume flow to an ammonia-containing gas flow includes providing the evaporator unit with at least one first section and a second section downstream of the first section. The volume flow flows through the sections for evaporation. The volume flow is heated to not more than 180° C. in the first section by supplying a first amount of heat energy and the volume flow is heated to more than 350° C. and completely evaporated in the second section. A motor vehicle having an evaporation unit is also provided. | 09-15-2011 |
20110271664 | Integrated SCR and AMOX Catalyst Systems - Catalysts and catalytic articles for treating exhaust gas streams are described. In one or more embodiments, a catalyst system includes a first zone to abate nitrogen oxides by selective catalytic reduction, a second zone to oxidize ammonia and a third zone to oxidize carbon monoxide and hydrocarbons. Methods for treating the exhaust gas stream are also provided. Methods of making and using such catalysts and catalytic articles are also described. | 11-10-2011 |
20110271665 | AIR-FUEL RATIO IMBALANCE AMONG CYLINDERS DETERMINING APPARATUS FOR AN INTERNAL COMBUSTION ENGINE - An air-fuel ratio imbalance among cylinders determining apparatus (a determining apparatus) according to an aspect of the present invention, obtains a parameter X for imbalance determination which becomes larger as a variation of an air-fuel ratio of an exhaust gas passing through a position at which the air-fuel ratio sensor is disposed becomes larger, based on an output value Vabyfs of an air-fuel ratio sensor | 11-10-2011 |
20110308235 | EXHAUST GAS PURIFICATION APPARATUS FOR INTERNAL COMBUSTION ENGINE - A NOx storing and reducing catalyst is disposed in an engine exhaust gas passage in which the catalyst stores NOx contained in the inflow exhaust gas when an air-fuel ratio of inflow exhaust gas is lean and releases and reduces the stored NOx when the air-fuel ratio of the inflow exhaust gas is rich. A stored NOx amount of the NOx storing and reducing catalyst is calculated and an exhaust gas purification operation is controlled based on the stored NOx amount. When the air-fuel ratio of inflow exhaust gas is lean, a ratio of NOx components in the inflow exhaust gas is calculated. An increment of the stored NOx amount per unit time is calculated based on the ratio of NOx components. | 12-22-2011 |
20120000190 | EXHAUST GAS PURIFICATION SYSTEM FOR INTERNAL COMBUSTION ENGINE - In an exhaust gas purification system for an internal combustion engine, a NO | 01-05-2012 |
20120036843 | AIR FILTER ASPIRATION AND ASPIRATION FAN DRIVE FOR USE WITH EXHAUST TREATMENT - In one embodiment, a system includes: a diesel engine having an intake and an exhaust; an exhaust treatment system communicating with the exhaust and operative to treat combustion products of the engine; an intake treatment system communicating with the intake and having an air filter assembly operative to remove particles from a flow of air and to provide the flow of air to the engine; and an aspiration fan assembly having a fan mechanically driven by the engine to produce scavenging vacuum pressure, the aspiration fan assembly being operative to apply the scavenging vacuum pressure to the air filter assembly to remove particles collected in the air filter assembly. | 02-16-2012 |
20120055141 | Catalyst For Gasoline Lean Burn Engines With Improved NO Oxidation Activity - Described is a catalyst comprising a substrate and a catalyst coating of two or more layers: (a) a first layer comprising Pt and/or Pd on the substrate; and (b) a second layer comprising Pt on the first layer; these layers each further comprising: one or more particulate support materials; one or more oxygen storage component (OSC) materials; and one or more nitrogen oxide storage materials comprising one or more elements selected from the group of alkali and/or alkaline earth metals, wherein the total amount of alkali and alkaline earth metals ranges from 0.18 to 2.5 g/in | 03-08-2012 |
20120055142 | Catalysts For Gasoline Lean Burn Engines With Improved NH3-Formation Activity - Described is a catalyst comprising a substrate and a catalyst coating of two or more layers: (a) a first layer comprising Pd and Rh on the substrate; and (b) a second layer comprising Pt and/or Pd on the first layer; these layers each further comprising: one or more particulate support materials; one or more oxygen storage component (OSC) materials; and one or more nitrogen oxide storage materials comprising one or more elements selected from the group of alkali and/or alkaline earth metals, wherein the total amount of alkali and alkaline earth metals ranges from 0.18 to 2.0 g/in | 03-08-2012 |
20120055143 | EXHAUST PURIFICATION SYSTEM OF INTERNAL COMBUSTION ENGINE - An exhaust purification system is provided with an NO | 03-08-2012 |
20120090304 | Multiple Flow Path Exhaust Treatment System - A vehicle exhaust system for an engine having a plurality of combustion chambers includes a first emission treatment device, a second emission treatment device and a housing defining a first exhaust passageway in fluid communication with the combustion chambers and containing the first emission treatment device. A second parallel exhaust passageway is in fluid communication with the combustion chambers and contains the second emission treatment device. The first and second passageways share a common wall having a serpentine shape such that the cross-sectional area of the passageways varies along a direction of exhaust flow. The first emission treatment device is positioned at a location of increased cross-sectional area in the first passageway and the second emission treatment device is positioned at an axially offset location of increased cross-sectional area in the second passageway. | 04-19-2012 |
20120117954 | EXHAUST PURIFICATION SYSTEM FOR INTERNAL COMBUSTION ENGINE - An exhaust purification system for an internal combustion engine is provided that can maintain the NOx purification rate of a selective reduction catalyst at near the maximum thereof. The exhaust purification system is provided with an oxidation catalyst and CSF provided in the exhaust plumbing of the engine, a selective reduction catalyst that is provided in the exhaust plumbing on the downstream side of oxidation catalyst and CSF, and selectively reduces NOx in the exhaust, and a NO | 05-17-2012 |
20120144812 | DOSING MODULE FOR EXHAUST POST TREATMENT SYSTEM OF VEHICLE - A dosing module for an exhaust gas post treatment system of a vehicle, which may be used to inject a reducing agent along a flow direction of exhaust gas at a front side of a selective catalyst reduction (SCR) unit, may include a dosing main body having a connection portion that may be connected to the SCR unit and an inflow portion into which the exhaust gas flows, an injector that may be disposed at a boss portion that may be mounted on the dosing main body to inject the reducing agent into the dosing main body, and a guide member that may be disposed inside the dosing main body to guide the exhaust gas flowing into the dosing main body along a predetermined route. | 06-14-2012 |
20120151902 | BIASED REDUCTANT MIXER - An engine exhaust aftertreatment system including a mixer with a varying contact area that assists in the introduction and conversion of a reductant introduced by an injector. | 06-21-2012 |
20120204547 | EXHAUST GAS PURIFICATION CATALYST AND EXHAUST GAS PURIFICATION APPARATUS USING SAME - Disclosed are: an exhaust gas purification catalyst which is capable of achieving a higher NOx removal ratio in comparison to conventional exhaust gas purification catalysts; and an exhaust gas purification apparatus which uses the exhaust gas purification catalyst. An exhaust gas purification catalyst comprises: a first catalyst layer that contains Pt and has NOx capturing ability; a second catalyst layer that contains a zeolite that has HC capturing ability; and an intermediate layer that is provided between the first catalyst layer and the second catalyst layer and has NOx reducing ability. The intermediate layer contains, as a main component, at least one oxide selected from the group consisting of CeO | 08-16-2012 |
20120247092 | Multi-Component Filters For Emissions Control - Catalytic articles, systems and methods for treating exhaust gas streams are described. A catalytic article comprising a wall flow filter having gas permeable walls, a hydrolysis catalyst, an optional soot oxidation catalyst, a selective catalytic reduction catalyst permeating the walls, an ammonia oxidation catalyst and an oxidation catalyst to oxidize CO and hydrocarbons is described. Methods of treating exhaust gas streams comprising soot, an ammonia precursor such as urea, ammonia, NO | 10-04-2012 |
20130047589 | EXHAUST PURIFICATION SYSTEM OF INTERNAL COMBUSTION ENGINE - In an internal combustion engine, an upstream side air-fuel ratio sensor ( | 02-28-2013 |
20130055703 | EXHAUST GAS PURIFICATION SYSTEM FOR INTERNAL COMBUSTION ENGINE - An object of the present invention is to increase the flexibility in the layout of an exhaust gas purification system for an internal combustion engine including selective catalytic reduction catalyst provided in an exhaust passage of the internal combustion engine and an addition device for supplying reducing agent derived from ammonia to the selective catalytic reduction catalyst, without a deterioration of the performance in reducing nitrogen oxides. To achieve the object, the exhaust gas purification system for an internal combustion engine according to the present invention is configured to supply hydrocarbon at the same time when reducing agent derived from ammonia is supplied to the selective catalytic reduction catalyst, thereby producing reducing agent that is hard to be oxidized by a precious metal catalyst. | 03-07-2013 |
20130104530 | SCR CONTROL SYSTEM UTILIZING A DIFFERENTIAL NH3 AND NOX MEASUREMENT USING AN EXHAUST GAS SENSOR COUPLED WITH A MICRO SCR CATALYST | 05-02-2013 |
20130232958 | SYSTEM AND METHOD TO MANAGE SCR CATALYST NO2/NOX RATIO - Systems and methods are provided for determining and controlling an NO | 09-12-2013 |
20130269327 | Motor-Vehicle Internal Combustion Engine with Exhaust-Gas Recirculation - A motor vehicle combustion engine includes an air supply section and an exhaust gas recirculation section that includes a particle filter and an SCR exhaust gas purification component. A first exhaust gas turbocharger includes a turbine arranged upstream of the particle filter in the exhaust gas section. A first exhaust gas recirculation line, which diverges from the exhaust gas section upstream of the turbine of the first exhaust gas turbocharger, and a second exhaust gas recirculation line, which diverges from the exhaust gas section downstream of the particle filter are provided to recirculate the exhaust gas from the exhaust gas section into the air supply system. An SCR catalyst is arranged in the second exhaust gas recirculation line. | 10-17-2013 |
20130318951 | SENSOR CONNECTION INTEGRATION DEVICE - An article of manufacture includes a housing having three input ports and an output port. An electronic sensor operationally coupled to an exhaust flowpath is coupled to the first input port via an electrical conduit. A first fluid conduit fluidly couples the second input port to the exhaust flowpath upstream of a particulate filter, and a second fluid conduit fluidly couples the third input port to the exhaust flowpath downstream of the particulate filter. A differential pressure sensor in the housing determines a differential pressure in response to a first pressure at the second input port and a second pressure at the third input port. The article includes a communication module that provides electronic information representative of the differential pressure and output from the electronic sensor at the output port, wherein the communication module is disposed in the housing. | 12-05-2013 |
20130333363 | REDUCTANT DECOMPOSITION AND MIXING SYSTEM - A selective catalytic reduction (SCR) system includes a mixer that has a plurality of blades spaced about a central tube. The mixer can be configured to receive a reductant and exhaust gas mixture. The SCR system also includes a closed-end tube that is downstream of the mixer and configured to receive the reductant and exhaust gas mixture from the mixer. The closed-end tube includes a closed end opposing an open end. The closed end is substantially perpendicular to an exhaust flow direction. The closed-end tube further includes a sidewall that extends between the open and closed end. The sidewall can include a plurality of perforations. The flange plate of the SCR system includes an annular disk that has a plurality of openings through which reductant and exhaust gas mixture received from the closed-end tube is flowable. The flange plate is coupled to and supports in place the closed-end tube. | 12-19-2013 |
20140053539 | EXHAUST COMPONENT MOUNTING SYSTEM - An exhaust treatment system including an exhaust passage in communication with an engine that produces an exhaust. An exhaust canister is coupled to the exhaust passage, and the exhaust canister supports a plurality of exhaust treatment components therein for treating the exhaust, wherein exhaust canister is removable from the exhaust passage, and the exhaust treatment components are removable from the exhaust canister. | 02-27-2014 |
20140075925 | EXHAUST SYSTEM FOR A MOTOR VEHICLE - An exhaust system ( | 03-20-2014 |
20140102084 | Device for Injecting a Liquid into an Exhaust Gas Flow and Exhaust Gas Aftertreatment System - A device for injecting a liquid, particularly an aqueous urea solution, into an exhaust gas flow has at least one atomizing nozzle which is designed as a two-component nozzle and by means of which the liquid is injected into the exhaust gas flow by means of pressurized air such that the liquid can be mixed with the pressurized air first directly upon exiting, or after exiting, the respective atomizing nozzle outside of the atomizing nozzle. The atomizing nozzle, or each atomizing nozzle, has a nozzle base body, a nozzle air cap and a nozzle insert which are formed as turning parts. The respective atomizing nozzle can be connected to a nozzle lance via the nozzle base body, and the nozzle air cap and the nozzle insert are received and held in the nozzle base body. | 04-17-2014 |
20140102085 | HYDRAULIC EXCAVATOR - A hydraulic excavator includes an engine, a rotating frame, a vehicle body frame, a diesel particulate filtering device, a selective catalytic reduction device, and a connecting pipe. The diesel particulate filtering device and the selective catalytic reduction device are supported by a vehicle body frame. At least a portion of the connecting pipe includes an extendable bellows part. The connecting pipe connects the engine and the diesel particulate filtering device. The diesel particulate filtering device is located further away from the engine than the selective catalytic reduction device along a first direction on a horizontal plane. The first tubular body portion of the diesel particulate filtering device and the second tubular body portion of the selective catalytic reduction device are disposed apart from each other with a space therebetween in a plan view. | 04-17-2014 |
20140109557 | EXHAUST SYSTEM WITH MIXING AND/OR EVAPORATING DEVICE - A mixer/evaporator or an exhaust system ( | 04-24-2014 |
20140202141 | Mixing Device for an Exhaust System of a Vehicle - A mixing device for an exhaust system of a vehicle includes an inlet pipe, through which exhaust gas can enter a mixing chamber of the mixing device, and an outlet pipe for the exhaust gas to leave the mixing chamber. The inlet pipe and the outlet pipe form an angle. The mixing chamber includes an opening for an outlet of a dosage device, by means of which a reducing agent for exhaust gas aftertreatment is introducible into the mixing chamber. A baffle is arranged at a wall of the inlet pipe a baffle, which is induces a turbulence in the exhaust gas flow entering the mixing chamber. | 07-24-2014 |
20140208724 | AFTERTREATMENT SYSTEM - An aftertreatment system of an engine is disclosed. The aftertreatment system includes a housing. The aftertreatment system also includes a Selective Catalytic Reduction (SCR) catalyst provided within the housing. The aftertreatment system further includes an exhaust duct associated with the SCR catalyst. The aftertreatment system includes a sampling flute provided within the exhaust duct. The aftertreatment system also includes a NOx sensor at least partly enclosed by a first end of the sampling flute. The aftertreatment system further includes a spring member. The spring member is joined to the sampling flute and the exhaust duct. | 07-31-2014 |
20140237998 | MOUNTING ASSEMBLY FOR REDUCTANT INJECTOR WITH THERMAL ISOLATION AND SEALING GASKET - 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 extending at least partially into the exhaust line curved portion and disposed in the exhaust flow. The downstream wall has an interior surface oriented to substantially face the exhaust line downstream end. A recess extends from the downstream wall in a direction away from the exhaust line downstream end, and a recess aperture is formed in the recess and configured to fluidly communicate with the injector. The recess reduces the amount of exhaust heat reaching the injector tip. | 08-28-2014 |
20140260216 | Apparatus, Method, and System for Diagnosing Reductant Delivery Performance - An exhaust gas treatment system for an internal combustion engine may have a reductant delivery system with a controller that performs period diagnostics to determine whether there is a blockage in the reductant delivery system. The diagnostic procedure may include sampling first and second pressures at first and second operating conditions, respectively, and then comparing the first pressure differential between the first and second pressures with one or more threshold pressure differentials to determine whether system components such as a dosing line and an injector are at least partially blocked. If such a test is not conclusive, it may be repeated at a third and fourth operating conditions to provide a second pressure differential. The offset between the first and second pressure differentials may also be used to help diagnose where a blockage in the system resides. | 09-18-2014 |
20140260217 | LOCOMOTIVE AND TRANSIT SYSTEM EFFICIENCY AND EMISSIONS IMPROVEMENTS - A system including: a HEP generator creating HEP generator exhaust; a prime engine creating prime engine exhaust; a SCR system through which the prime engine exhaust and the HEP generator exhaust run; an HEP generator exhaust pipe running from the HEP generator to an exhaust mixing duct where the HEP generator exhaust is mixed with the prime engine exhaust, wherein the HEP generator exhaust pipe discharges into the exhaust mixing duct at a distance from the SCR less than ten times the diameter of the exhaust mixing duct; and a single urea injector injecting urea into the HEP generator exhaust pipe at a distance from the exhaust mixing duct of more than ten diameters of the HEP generator exhaust pipe. | 09-18-2014 |
20140298781 | MIXER FOR FLUID INJECTION SYSTEM - A mixer is disclosed for use in a fluid injection system. The mixer may have an impingement floor oriented generally perpendicular to an intended fluid injection direction and generally parallel with a flow direction. The mixer may also have a first side wall connected along a lengthwise edge of the impingement floor and generally parallel with the flow direction, and a second side wall connected along an opposing lengthwise edge of the impingement floor and generally parallel with the flow direction. The mixer may further have at least one shelf extending between the first and second side walls and generally parallel with the flow direction. The at least one shelf may have a plurality of vanes protruding toward and away from the impingement floor that promotes mixing of an injected fluid. | 10-09-2014 |
20140305106 | CONTROL APPARATUS OF INTERNAL COMBUSTION ENGINE - An SCR system ( | 10-16-2014 |
20140318106 | METAL-GAS BATTERY SYSTEM - A metal-gas battery that utilizes an exhaust gas stream from a combustion engine as reactive gases is provided. Almost constant concentration of exhaust gases are supplied to the metal-gas battery via an existing engine systematic combustion system. The systematic combustion system keeps a definite air fuel mixture (A/F) that acts to enhance the fuel efficiency of the vehicle, and the metal-gas battery leverages the existing vehicle air management system. Exhaust heat of the exhaust gases is sometimes utilized for the heat control of the vehicle, and then the cooled exhaust gases are introduced into the metal-air battery to be consumed during a cathode reduction reaction to create and store electrical energy. The metal-gas battery supports the cleaning of exhausted gases using existing emission catalysts. | 10-30-2014 |
20140352285 | INTERNAL COMBUSTION ENGINE - An internal combustion engine, in particular a large multi-fuel diesel internal combustion engine, and includes an SCR catalytic converter that can be bypassed, and at least one control element for switching the flow in an exhaust gas line between a first position where the SCR catalytic converter is active and a second position where the SCR catalytic converter is bypassed, and at least one flow path bypassing the SCR catalytic converter. | 12-04-2014 |
20150040543 | METHOD AND SYSTEM FOR IDENTIFYING A SOURCE OF NITROGEN OXIDE REDUCTION INEFFICIENCY - System and methods can identify a source of nitrogen oxide reduction inefficiency in an exhaust system including first and second selective catalytic reduction (SCR) catalysts connected in series along an exhaust line. The methods and systems can determine which of the first and second SCR catalysts is a source of nitrogen oxide reduction inefficiency based on the temperatures of the exhausts gases flowing through the first and second SCR catalysts. | 02-12-2015 |
20150075143 | SYSTEM, METHODS, AND APPARATUS FOR LOW TEMPERATURE DOSING IN DIESEL EXHAUST SYSTEMS - System, apparatus, and methods are disclosed for reductant dosing in an exhaust aftertreatment system. A dynamic flow rate and injection duration of a reductant injected from a reductant dosing system to the exhaust aftertreatment system is controlled in response to a dosing command when the exhaust system is operating in a low temperature operating condition. | 03-19-2015 |
20150101318 | SYSTEM AND APPARATUS FOR REDUCING REDUCTANT DEPOSIT FORMATION IN EXHAUST AFTERTREATMENT SYSTEMS - System and apparatus are disclosed for reducing reductant deposit formation in an exhaust aftertreatment system. A directing device is provided in the exhaust flow path upstream of a reductant opening into the exhaust flow path. The directing device is configured to direct an exhaust flow toward the reductant opening and around the directing device to effectively mix the exhaust flow with a reductant provided through the reductant opening to reduce the formation of reductant deposits. | 04-16-2015 |
20150101319 | CONTROL DEVICE FOR INTERNAL COMBUSTION ENGINE - A control device for an internal combustion engine is provided with: a variable valve driving mechanism capable of changing a working angle of an intake valve while keeping a maximum magnitude of lift and opening timing constant; a reduction catalyst which absorbs nitrogen oxide in exhaust during lean combustion and reduces the nitrogen oxide absorbed during rich combustion; and a control unit changing, according to a load on the internal combustion engine, an amount of advance of closing of the intake valve at the time of switching to rich combustion. | 04-16-2015 |
20150113966 | AFTERTREATMENT SYSTEMS WITH REDUCED N2O GENERATION - Systems, apparatus and methods are disclosed for reducing the amount of nitrous oxide (N | 04-30-2015 |
20150337707 | ABNORMALITY DIAGNOSIS APPARATUS FOR EXHAUST GAS PURIFICATION APPARATUS - The present invention provides an abnormality diagnosis apparatus for an exhaust gas purification apparatus having an SCR catalyst, with which a misdiagnosis of an abnormality in the SCR catalyst even though the SCR catalyst is normal can be suppressed. In the present invention, a NO | 11-26-2015 |
20150345455 | VEHICULAR LIQUID CONTAINMENT SYSTEM AND METHOD FOR VERIFYING INTEGRITY OF SAME - A vehicular liquid containment system including a tank, a pump arranged to pump a liquid from the tank to a vehicular system via a feed line, a pressure sensor arranged to detect a pressure in a vapor dome inside the tank, and a sprayer arranged within a branch of the feed line, the outlet of the sprayer being arranged inside the tank. | 12-03-2015 |
20150360213 | Oxidation Catalyst for a Compression Ignition Engine - An oxidation catalyst for treating an exhaust gas from a compression ignition engine, which oxidation catalyst comprises: a first washcoat region comprising platinum (Pt) and a first support material, wherein the first washcoat region is substantially free of a hydrocarbon adsorbent; a second washcoat region comprising platinum (Pt), palladium (Pd) and a second support material, wherein the second washcoat region has a ratio by mass of platinum (Pt) to palladium (Pd) of 4:1 to 1:1; a hydrocarbon adsorbent; and a substrate; wherein the first washcoat region is arranged to contact inlet exhaust gas before the hydrocarbon adsorbent, and the first washcoat region is arranged to contact inlet exhaust gas before the second washcoat region. | 12-17-2015 |
20150361849 | IN-LINE DECOMPOSITION REACTOR PIPE WITH EXHAUST ASSIST - An exhaust assisted pipe assembly including an outer portion having an opening for receiving dosed reductant from a dosing module and an inner portion disposed within the outer portion. The inner portion defines a main flow path for receiving a first portion of a fluid from an upstream source, and the inner portion and the outer portion cooperatively define a first flow path and a second flow path. The first flow path is configured to direct a second portion of the fluid from the upstream source past the opening for receiving dosed reductant and into the main flow path to increase momentum of the dosed reductant into the main flow path. The second flow path is configured to direct a third portion of the fluid from the upstream source toward the dosed reductant to decrease the momentum of the dosed reductant in the main flow path. | 12-17-2015 |
20160010525 | ENGINE DEVICE OF WORKING VEHICLE | 01-14-2016 |
20160024986 | MARINE EXHAUST VALVING - A marine engine exhaust system includes a catalyst arranged to intercept a flow of exhaust flowing along the exhaust system, a water muffler downstream of the catalyst, and a water-activated exhaust valve disposed between the water muffler and an upstream catalyst and configured to impede flow of water upstream from the muffler to the catalyst. | 01-28-2016 |
20160040576 | EXTRUDED HONEYCOMB CATALYST - An extruded honeycomb catalyst for nitrogen oxide reduction according to the selective catalytic reduction (SCR) method in exhaust gases from motor vehicles includes an extruded active carrier in honeycomb form having a first SCR catalytically active component and with a plurality of channels through which the exhaust gas flows during operation, and a washcoat coating having a second SCR catalytically active component being applied to the extruded body, wherein the first SCR catalytically active component and the second SCR catalytically active component are each independently one of:
| 02-11-2016 |
20160047285 | Engine Exhaust After-Treatment System - An engine exhaust after-treatment system including an exhaust passage; an exhaust treatment component housing communicating with the exhaust passage; a pair of baffles spaced apart within the housing; a plurality of exhaust treatment devices positioned between the pair of baffles, each exhaust treatment device including a canister; a plurality of restraining devices fixed between the pair of baffles for positioning each of the canisters between the baffles, each restraining device including at least a portion thereof that is angled relative to an outer surface of the canister such that ends of the restraining device abut the outer surface of the canister at the first end and prevent radial movement of the canister; and a soot blower positioned in the housing upstream of the exhaust treatment devices, the soot blower for dispersing particulate matter deposited on each of the exhaust treatment devices. | 02-18-2016 |
20160053645 | ENGINE DEVICE - An engine device is provided with an urea mixing pipe which injects urea water into exhaust gas of an engine, and an exhaust gas purification case which removes nitrogen oxide in the exhaust gas of the engine, and is structured such that an exhaust gas inlet pipe of the exhaust gas purification case is connected to an outlet of the urea mixing pipe via a flange body. Exhaust gas outlet side end portions of an outer pipe and an inner pipe of the urea mixing pipe having a double-pipe structure are connected to exhaust gas inlet side end portions of an outer pipe and an inner pipe of the exhaust gas inlet pipe having a double-pipe structure. Fitting small-diameter portions are formed in an end portion of the inner pipe of the urea mixing pipe, and the fitting small-diameter portions are inward insert to an inner portion of the inner pipe of the exhaust gas inlet pipe. | 02-25-2016 |
20160053661 | Heat Shield and Emissions Cleaning Module - An emissions cleaning module including a heat shield that comprises a first section and a second section that are coupled together around a flowhood. The heat shield substantially fully envelops all external surfaces of the flowhood. | 02-25-2016 |
20160053663 | Support Structure for Mounting an Emissions Cleaning Module - A support structure for mounting an emissions cleaning module to an engine is provided. The support structure includes a lower section adapted to be mounted to the engine and an upper section, coupled to the lower section, and adapted to carry the emissions cleaning module. The support structure may include anti-vibration mounts to reduce movement, in use, of the emissions cleaning module due to movement of the engine. | 02-25-2016 |
20160061083 | SYSTEM FOR INJECTING REACTANTS IN AN EXHAUST LINE - A system to be fitted on an automotive vehicle for injecting reactants in an exhaust line of an engine of the vehicle includes a source of a liquid precursor of ammonia, a source of gaseous ammonia, an injection assembly designed to be fitted on the exhaust line and to inject liquid precursor and/or gaseous ammonia inside the exhaust line, the injection assembly including a single injector body to be fitted on the exhaust line, the injector body having a first inlet for the liquid precursor, a second inlet for the gaseous ammonia, and at least one outlet for injection inside the exhaust line. | 03-03-2016 |
20160076430 | Emissions Cleaning Module and Mounting Mechanism - An emissions cleaning module is provided including a first conduit containing a diesel oxidation catalyst (DOC) module and a second conduit containing a selective catalytic reduction (SCR) module. A mounting mechanism is provided for mounting the emissions cleaning module to an external support, which may be, for example, a chassis of a vehicle or an engine component. The second conduit is mounted to the mounting mechanism and the first conduit is mounted to the second conduit. | 03-17-2016 |
20160084129 | Liquid Cooled Reductant Dosing Unit - A liquid cooled reduction unit includes a diesel exhaust fluid (DEF) injection valve. The valve includes a housing that forms an elongated chamber therein. The valve configured to receive a DEF and force the DEF through the chamber to exit the chamber and the DEF is then being directed and applied to an exhaust stream of a vehicle engine. A coolant jacket is selectively filled with a coolant and has an outer side and an inner side. The inner side of the jacket faces a length of the valve body and is separated from the length of the valve body by an air gap. | 03-24-2016 |
20160108785 | Method for operating a device for the dosed supply of a liquid - A method for operating a device configured to provide a dosed supply of a liquid. The device has: a pump delivering the liquid and having a pump housing having an inlet and an outlet, an eccentric on the pump housing, and a deformable diaphragm arranged between the pump housing and the eccentric. The deformable diaphragm and the pump housing delimit a delivery path from the inlet to the outlet and form at least one seal of the delivery path, the seal being displaceable along the delivery path by a movement of the eccentric to deliver the liquid. The method comprises: detecting a demanded dose amount of the liquid; activating the pump to deliver the liquid by the pump; stopping operation of the pump when the delivered amount of the liquid corresponds to the demanded dose amount; deactivating the pump when the eccentric is situated in a predefined park position. | 04-21-2016 |
20160108790 | WASTE HEAT RECOVERY SYSTEM OF ENGINE - A waste heat recovery system of an engine is provided. The waste heat recovery system includes an inlet member adapted to introduce exhaust gases in the aftertreatment system, and an outlet member adapted to receive the exhaust gases from the Selective Catalytic Reduction module. The outlet member includes a first surface defining a passage, and a second surface coupled with a power generation module. The power generation module includes a plurality of power generating units having a first lead and a second lead. The power generating units are adapted to generate electric power based on a temperature gradient between the first and second lead. At least one of the first lead and the second lead is exposed to the exhaust gases. An electric load is coupled with the plurality of power generating units for utilizing the power generated by the plurality of power generating units. | 04-21-2016 |
20160115562 | FERRITIC STAINLESS STEEL SHEET, METHOD FOR THE PRODUCTION THEREOF, AND USE OF THE SAME, ESPECIALLY IN EXHAUST LINES - A ferritic stainless steel sheet of a composition, expressed in weight percentages: trace amounts≦C≦0.03%; 0.2%≦Mn≦1%; 0.2%≦Si≦1%; trace amounts≦S≦0.01%; trace amounts≦P≦0.04%; 15%≦Cr≦22%; trace amounts≦Ni≦0.5%; trace amounts≦Mo≦2%; trace amounts≦Cu≦0.5%; 0.160%≦Ti≦1%; 0.02%≦Al≦1%; 0.2%≦Nb≦1%; trace amounts≦V≦0.2%; 0.009%≦N≦0.03%; trace amounts≦Co≦0.2%; trace amounts≦Sn≦0.05%; rare earths (REE)≦0.1%; trace amounts≦Zr≦0.01%; the remainder of the composition consisting of iron and of inevitable impurities resulting from the elaboration; the Al and rare earth (REE) contents satisfying the relationship: Al+30×REE≧0.15%; the Nb, C, N and Ti contents in % satisfy the relationship: 1/[Nb+(7/4)×Ti−7×(C+N)]≦3; said metal sheet having an entirely recrystallized structure and an average ferritic grain size comprised between 25 and 65 μm. | 04-28-2016 |
20160115844 | DOSING AND MIXING ARRANGEMENT FOR USE IN EXHAUST AFTERTREATMENT - A dosing and mixing arrangement is disclosed herein. The arrangement includes a mixing tube having a constant diameter along its length. At least a first portion of the mixing tube includes a plurality of apertures. The arrangement also includes a swirl structure for causing exhaust flow to swirl outside of the first portion of the mixing tube in one direction along a flow path that extends at least 270 degrees around a central axis of the mixing tube. The arrangement is configured such that the exhaust enters an interior of the mixing tube through the apertures as the exhaust swirls along the flow path. The exhaust entering the interior of the mixing tube through the apertures has a tangential component that causes the exhaust to swirl around the central axis within the interior of the mixing tube. The arrangement also includes a doser for dispensing a reactant into the interior of the mixing tube. | 04-28-2016 |
20160115849 | ABNORMALITY DIAGNOSING APPARATUS - An abnormality diagnosing apparatus configured to diagnose abnormality of a fuel injection amount of a diesel engine includes: an oxidation catalyst provided in an exhaust gas passage; an exhaust gas temperature detector configured to detect an upstream-side exhaust gas temperature and a downstream-side exhaust gas temperature, the upstream-side exhaust gas temperature being an exhaust gas temperature on an upstream side of the oxidation catalyst, the downstream-side exhaust gas temperature being an exhaust gas temperature on a downstream side of the oxidation catalyst; and an abnormality determining unit configured to determine whether the fuel injection amount is excessive or not on the basis of comparison between the upstream-side exhaust gas temperature and the downstream-side exhaust gas temperature. | 04-28-2016 |
20160123209 | Exhaust Gas Mixer - A power system including a selective reduction catalyst and an exhaust gas mixer positioned downstream thereof. The exhaust gas mixer includes an inlet opening a plurality of peripheral inlet openings and a plurality of swirler guides. The inlet opening is positioned to receive a first portion of exhaust gas exiting the SCR catalyst, while the plurality of peripheral inlet openings are positioned to receive a second portion of exhaust gas exiting the SCR catalyst. The swirler guides extend radially inwards from a respective peripheral inlet opening, so as to swirl the second portion of exhaust gas about and into the first portion of exhaust gas. | 05-05-2016 |
20160123212 | EXHAUST GAS TREATMENT DEVICE - An exhaust gas treatment device ( | 05-05-2016 |
20160125666 | SHOVEL - A shovel includes a lower traveling body; an upper turning body that is installed on the lower traveling body; an internal-combustion engine disposed in the upper turning body; an oil hydraulic pump that discharges hydraulic oil by power of the internal-combustion engine; a hydraulic actuator that is driven by the hydraulic oil discharged by the oil hydraulic pump; a fuel container that stores fuel of the internal-combustion engine; a first detector that detects a residual quantity state of the fuel; a reducing agent container that stores a reducing agent to be used in a selective catalytic reduction system; a second detector that detects a residual quantity state of the reducing agent; and an image display unit that is installed in a cabin, wherein the image display unit is configured to simultaneously image-display the residual quantity state of the fuel and the residual quantity state of the reducing agent. | 05-05-2016 |
20160131000 | SELECTIVE CATALYTIC REDUCTION AND CATALYTIC REGENERATION SYSTEM - A selective catalytic reduction and catalytic regeneration system includes: a main exhaust flow path; a reactor which is installed on the main exhaust flow path; a bypass exhaust flow path which branches off from the main exhaust flow path, and bypasses the reactor; an ammonia injection unit, which injects ammonia to the exhaust gas which is to flow into the reactor; a hydrolysis chamber, which produces ammonia to be supplied to the ammonia injection unit; a branch flow path, which branches off from the main exhaust flow path at a front side of the reactor; a recirculation flow path, which branches off from the main exhaust flow path at a rear side of the reactor, and merges with the branch flow path; and a multifunctional flow path, which connects the hydrolysis chamber with a point where the branch flow path and the recirculation flow path merge together. | 05-12-2016 |
20160146079 | MACHINE BODY AND WORKING MACHINE - A machine body including an exhaust after-treatment apparatus that executes a reduction treatment on a predetermined oxide in exhaust gas from an engine using a liquid reducing agent. A reducing agent tank provided at a position distant from the engine stores the liquid reducing agent, and a working fluid tank positioned between the exhaust after-treatment apparatus and the reducing agent tank stores a working fluid having a high temperature at least during operation of the machine. A reducing agent supply line is arranged along the working fluid tank at a position above a level of the fluid stored in the working fluid tank to supply the liquid reducing agent from the reducing agent tank to the exhaust after-treatment apparatus. Accordingly, the liquid reducing agent stored in reducing agent tank is unlikely to be thermally affected by the engine, and the liquid reducing agent flowing through the reducing agent supply line is unlikely to be thermally affected by the fluid stored in the working fluid tank. | 05-26-2016 |
20160158714 | DIESEL EXHAUST FLUID MIXING SYSTEM FOR A LINEAR ARRANGEMENT OF DIESEL OXIDATION CATALYST AND SELECTIVE CATALYTIC REDUCTION FILTER - An exhaust system is provided for a diesel engine, including an exhaust passage adapted to be attached to the diesel engine. A diesel oxidation catalyst is provided in the exhaust passage along with a selective catalyst reduction device disposed downstream from the diesel oxidation catalyst. A diesel exhaust fluid mixing system includes a diesel exhaust fluid injection nozzle and a mixing device defining a single inlet opening and a single outlet opening connected to one another by a partial spiral flow passage. The diesel exhaust fluid injection nozzle injects diesel exhaust fluid directly into the inlet opening of the partial spiral flow passage. | 06-09-2016 |
20160160727 | AFTERTREATMENT MODULE HAVING REPLACEABLE CATALYST HOUSING - An aftertreatment module is disclosed for use with an engine. The aftertreatment module may have an inlet housing at least partially defining an inlet passage for exhaust, and at least one mixer disposed in the inlet passage. The aftertreatment module may also have an outlet housing at least partially defining an outlet passage for exhaust, and a catalyst housing removably connected between the inlet housing and the outlet housing. The aftertreatment module may further have a plurality of catalyst substrates configured to be mounted in the catalyst housing, to receive exhaust from the inlet passage in parallel, and to discharge exhaust to the outlet housing in parallel. | 06-09-2016 |
20160160728 | COMPACT RADIAL EXTERIOR EXHAUST ASSISTED DECOMPOSITION REACTOR PIPE - Various embodiments provide for apparatuses and systems involving a reactor pipe configured to receive reductant from an injector into a flow of exhaust exiting an engine. The reactor pipe comprises an inlet portion, a plurality of louvers, an outlet portion, and a radial loop. The inlet portion is structured to receive the flow exiting the engine into the reactor pipe. The louvers are structured to alter a direction of the flow. Further, the radial loop is configured to extend between the inlet portion and the outlet portion and receives the flow of exhaust through the inlet portion. The radial loop also directs the flow of the exhaust toward the outlet portion and reduces the velocity of the flow of the exhaust such that the reductant has an increased amount of time to react with the exhaust. | 06-09-2016 |
20160177799 | Insulated Reductant Tank | 06-23-2016 |
20160194993 | EXHAUST GAS AFTERTREATMENT DEVICE FOR A COMBUSTION ENGINE, IN PARTICULAR OF A MOTOR VEHICLE | 07-07-2016 |
20160195487 | Method for determining the quality of reducing agent | 07-07-2016 |
20160201538 | EXHAUST PURIFICATION SYSTEM FOR AN INTERNAL COMBUSTION ENGINE | 07-14-2016 |
20160376954 | POWER GENERATION SYSTEM EXHAUST COOLING - A turbomachine system according to an embodiment includes: a gas turbine system including a compressor component, a combustor component, and a turbine component; a mixing area for receiving an exhaust gas stream produced by the gas turbine system; a fluid injection system for injecting a fluid into the mixing area to reduce a temperature of the exhaust gas stream; and an exhaust processing system for processing the reduced temperature exhaust gas stream. | 12-29-2016 |
20170234186 | EXHAUST GAS CONTROL APPARATUS FOR INTERNAL COMBUSTION ENGINE | 08-17-2017 |
20170234187 | EXHAUST GAS PURIFICATION APPARATUS FOR INTERNAL COMBUSTION ENGINE | 08-17-2017 |
20170234190 | SCR TANK WITH VENTILATION LINE ATTACHED IN SECTIONS | 08-17-2017 |
20170234192 | EXHAUST SYSTEM AND DEVICE TO INDUCE IMPROVED EXHAUST GAS MIXING PRIOR TO TREATMENT THROUGH A CATALYTIC CONVERTER | 08-17-2017 |
20170234193 | DIESEL EXHAUST FLUID TANK FOR AN OFF-ROAD VEHICLE | 08-17-2017 |
20180023446 | FLOW DIVERTER TO MITIGATE DEPOSITS IN A DOSER CONE | 01-25-2018 |