Entries |
Document | Title | Date |
20080196397 | LNT regeneration strategy to reduce NOx spike - Systems and methods are disclosed for ameliorating NOx slip from a lean NOx trap by reducing the amount of hydrocarbons reaching the lean NOx trap during the early stages of, or in a period immediately preceding, a rich regeneration. In one embodiment, a hydrocarbon absorber is configured downstream from a fuel reformer, but upstream from the lean NOx trap, in order to reduce the quantity of hydrocarbons that reach the lean NOx trap during lean reformer warm-up and rich regeneration phases. In another embodiment, the fueling rate to a fuel reformer configured in an exhaust line upstream from the lean NOx trap is limited to reduce NOx slip. | 08-21-2008 |
20080196398 | HC mitigation to reduce NOx spike - Systems and methods are disclosed for ameliorating NOx slip from a lean NOx trap by reducing the amount of hydrocarbons reaching the lean NOx trap during the early stages of, or in a period immediately preceding, a rich regeneration. In one embodiment, a hydrocarbon absorber is configured downstream from a fuel reformer, but upstream from the lean NOx trap, in order to reduce the quantity of hydrocarbons that reach the lean NOx trap during lean reformer warm-up and rich regeneration phases. In another embodiment, the fueling rate to a fuel reformer configured in an exhaust line upstream from the lean NOx trap is limited to reduce NOx slip. | 08-21-2008 |
20080196399 | Catalyst and method for purification of diesel engine exhaust gas - The invention provides a catalyst for catalytically reducing nitrogen oxides in diesel engine exhaust gas by use of unburnt carbon contained in the diesel engine exhaust gas as a reducing agent, the catalyst comprising:
| 08-21-2008 |
20080202106 | EXHAUST DEVICE FOR A DIESEL ENGINE - An exhaust device for a diesel engine supplies liquid fuel ( | 08-28-2008 |
20080209896 | Catalyst System for an Internal Combustion Engine and Method for Producing It - A catalyst system for an internal combustion engine with at least one cylinder and/or piston is characterized in that the catalyst is arranged in the form of nanoparticles on the cylinder and/or piston. | 09-04-2008 |
20080223022 | Exhaust-gas System Having an Injection Nozzle - An exhaust-gas system has an exhaust-gas pipe for guiding an exhaust-gas flow and an injection nozzle mounted to the exhaust-gas pipe for injecting reducing agent into the exhaust-gas flow. Downstream of the injection nozzle, the exhaust-gas pipe branches into at least two exhaust-gas lines. A fluid divider, formed with a front face that faces upstream into the gas flow, is disposed between the injection nozzle and the branching. The front face is oriented with respect to the cross section of the exhaust-gas pipe and the injection nozzle, such that the exhaust-gas flow and the medium are divided among the exhaust-gas lines in a predefined dividing ratio. | 09-18-2008 |
20080229731 | Combustion Catalyst for Treating Diesel Exhaust Gas and Method for Treating Diesel Exhaust Gas - The present invention provides a catalyst for combustion treatment of suspended particulate matter in diesel exhaust gases, and a combustion catalyst for treating diesel exhaust gases in which a precious metal or an oxide thereof as the catalytic component is loaded on a carrier composed of oxide ceramic particles comprising ceria-zirconia or ceria-praseodymium oxide. In the present invention, depending on the carried precious metal, the carrier is preferably composed of oxide ceramic particles further comprising yttria or lanthanum oxide. The present invention provides a sufficient activity to combust suspended particulate matter in exhaust gases, and can cause combustion at a low temperature of about 300° C. It operates stably for a long period, and can burn suspended particulate matter, especially carbon microparticles. | 09-25-2008 |
20080229732 | Exhaust Emission Control Device - Sensing accuracy of a temperature sensor is enhanced so as to accurately conduct regeneration control of a particulate filter. | 09-25-2008 |
20080229733 | CATALYTIC CONVERTER SYSTEM AND ELEMENT FOR DIESEL ENGINES - An improved exhaust system and catalytic converter element for a diesel engine wherein the improvement comprises: holding means for restricting the movement of catalytic converter elements in an overhead exhaust manifold; an improved catalytic converter element having at least one retaining rod extending through the catalyst substrate and/or having at least one retaining lip projecting into the substrate; a stabilizer projecting from the cover for the element insertion slot for receiving an end portion of the catalytic converter element to restrict the movement of the converter element in the exhaust manifold; perforated flow distribution elements provided upstream of the catalytic converter elements; and/or vertical coupling manifolds which each receive exhaust from a pair of engine cylinders and then deliver the combined exhaust stream to a separate one of the inlet openings in the bottom of the overhead exhaust manifold. | 09-25-2008 |
20080229734 | System for Purifying the Exhaust Gases Emitted by Internal Combustion Engines - A system for purifying the exhaust gases emitted by an internal combustion engine ( | 09-25-2008 |
20080236149 | COMBINATION EXHAUST GAS TURBINE-CATALYTIC CONVERTER - An exhaust turbine for an internal combustion engine, which may either serve as a compressor for turbocharging or a turbogenerator for a hybrid vehicle, has its turbine surfaces and the internal surfaces of the exhaust turbine housing coated with a catalyst so the exhaust gases are treated to catalytic conversion as they pass through the exhaust turbine. The turbine wheel is equipped with a disk-like slinger at its input end that carries particulate matter in the exhaust outward radially into a particulate trap and combustion chamber formed on the interior of the turbine housing. The combustion chamber is heated by the exhaust gases and artificial heating such as electrical heating may be used to preheat the chamber. The combustion products from the burned particulate matter are added to the exhaust. | 10-02-2008 |
20080250776 | Mixing Apparatus for an Exhaust After-Treatment System - A mixing apparatus mountable within a generally cylindrical passage defined by an exhaust gas conduit of an exhaust gas after-treatment system is provided. The passage includes an outer region and an inner region operable to convey an exhaust stream and a liquid stream, such as a urea stream. The mixing apparatus includes a retainer ring operable to retain the mixing apparatus within the passage. A first plurality of fins extends from the retainer ring and is operable to impart a rotational velocity component in a first direction to the exhaust stream and urea stream in the outer region of the passage. A second plurality of fins extends from the retainer ring and is operable to impart a rotational velocity component in a second direction, opposite the first direction, to the exhaust stream and urea stream in the inner region of the passage. | 10-16-2008 |
20080250777 | EXHAUST DEVICE OF V-TYPE ENGINE FOR VEHICLE - A V-type engine is disposed in an engine room of a vehicle so that each cylinder bank of the V-type engine extends substantially in a vehicle length direction. Exhaust manifolds are attached to both side of the V-type engine in a vehicle width direction, respectively. Catalytic converters are attached to both gathering portions of the exhaust manifolds, respectively, in a manner that an axial line of each of the catalytic converters extends substantially in a vehicle height direction. An auxiliary component is disposed above one of the catalytic converters in the engine room. An oil pan is attached to a lower portion of the V-type engine. The one of the catalytic converters is located lateral to the oil pan. A center line of lower portion of the oil pan is shifted with respect to a center line of the vehicle in the vehicle width direction so that the lower portion of the oil pan is away from the one of the catalytic converters. | 10-16-2008 |
20080256934 | CATALYST UNIT FOR REDUCTION OF NOx COMPOUNDS - A catalyst unit ( | 10-23-2008 |
20080256935 | Exhaust System Comprising Exotherm-Generating Catalyst - An apparatus comprising a compression ignition engine and an exhaust system therefor comprising at least one exhaust system component for treating exhaust gas and means for generating an exotherm for heating the at least one exhaust system component, which exotherm generating means consisting essentially of a catalyst and means for injecting hydrocarbon into exhaust gas for combustion on the catalyst, which catalyst consisting essentially of both a palladium (Pd) component and a platinum (Pt) component, and an optional support material, disposed on a substrate monolith. | 10-23-2008 |
20080256936 | Selective Catalytic Reduction Filter and Method of Using Same - A Selective Catalytic Reduction (SCR) filter is provided for use in emission control systems, for example, on the exhaust gas from an internal combustion engine. The SCR filter has a substrate constructed using bonded fiber structures, which cooperate to form a highly uniform open cell network, as well as to provide a uniform arrangement of pores. The substrate typically is provided as a wall-flow honeycomb structure, and in one example, is manufactured using an extrusion process. In this way, the substrate has many channel walls, each having an inlet surface and an outlet surface. The inlet surface has a uniform arrangement of pores that form a soot capture zone, where soot and other particulate matter is captured from an exhaust gas. A NOx conversion catalyst is disposed inside the channel wall, where NOx and ammonia in the exhaust gas are reacted to less harmful substances. Because of the uniform pore structure and open cell arrangement inside the channel wall, the filter is capable of being heavily loaded with catalyst, while avoiding undue increase in backpressure to the internal combustion engine. | 10-23-2008 |
20080264047 | Catalyst Delivery System - The present invention provides a catalytic aerosol delivery system for generating an aerosol containing chemical catalyst pre-cursors for delivery either directly into the flame zone of a combustion reaction system, or directly into the inlet air or inlet fuel or the fuel/air mixture, or directly into the hot exhaust gases of a combustion reaction, or any combination of these three. The system and the composition of the invention enables a reduction in pollution emitted from the combustion chambers and ensures more efficient and clean combustion. In most applications, the combustion system and composition of the invention results in improved fuel economy. | 10-30-2008 |
20080264048 | Exhaust Gas Purification Device for Internal Combustion Engine - An inlet chamber | 10-30-2008 |
20080271441 | Exhaust gas purification catalyst for automobile, exhaust gas purification catalyst system and purifying process of exhaust gas - The present invention provides an exhaust gas purification catalyst for automobile which is capable of raising temperature of exhaust gas exhausted from combustion engines such as diesel engine cars and converting NO in the exhaust gas to NO | 11-06-2008 |
20080282684 | APPARATUS, SYSTEM, AND METHOD FOR ENGINE-GENERATED HEAT UTILIZATION IN A NOx-ADSORBER AFTERTREATMENT SYSTEM - An apparatus, system, and method are disclosed for utilizing engine-generated heat in a NO | 11-20-2008 |
20080282685 | Air Injection Valve for a Muffler - An air injection valve includes: a valve housing having first and second housing halves coupled detachably to each other, the first housing half defining a first inner space and having a flat wall that is formed with a plurality of suction holes in fluid communication with the first inner space, the second housing half defining a second inner space and being formed with an outlet in fluid communication with the second inner space and adapted to be connected to the muffler; a valve seat secured in the second inner space and formed with a valve opening for permitting fluid communication between the first and second inner spaces; and a flexible thin film reed having one end secured to the valve seat for covering and uncovering the valve opening. | 11-20-2008 |
20080289320 | SUBSTANCE DISPENSER FOR TREATING EXHAUST GAS AND METHOD - A reservoir ( | 11-27-2008 |
20080289321 | EXHAUST AFTER-TREATMENT SYSTEM WITH FLOW CONTROL FOR OPTIMUM TEMPERATURE CONDITIONS - A diesel engine exhaust treatment system has both a NOx reduction device and a diesel particulate filter. The system is designed to ensure that the NOx reduction device operates within its optimal temperature conditions. Using exhaust flow control valves, the exhaust flow can be directed into either the NOx reduction device first or into the diesel particulate filter first, and then into the other device, before exiting out the tailpipe. | 11-27-2008 |
20080289322 | Exhaust purification device for internal combustion engine, and exhaust control device and exhaust control method for internal combustion engine - An exhaust purification device includes a front catalyst arranged in an exhaust system of the internal combustion engine that is longitudinally mounted in a vehicle, a rear catalyst arranged in the exhaust system downstream of the front catalyst, and a bypass pipe that communicates with the exhaust passage of the exhaust system upstream of the front catalyst, communicates with the exhaust passage between the front catalyst and the rear catalyst, and is arranged at a position that is spaced apart in a direction perpendicular to the vibration direction of the exhaust system. | 11-27-2008 |
20080295501 | Stoichiometric engine system utilizing reformed exhaust gas - A power system is provided having an engine configured to combust a substantially stoichiometric air/fuel mixture and produce a flow of exhaust. The power system also has an exhaust passageway fluidly connected to the engine. In addition, the power system has a catalytic device situated within the exhaust passageway. Furthermore, the system has an exhaust gas recirculation loop fluidly connected to the exhaust passageway. The system further has a steam fuel reformer situated within the exhaust gas recirculation loop. | 12-04-2008 |
20080302092 | NOX ADSORBER CATALYST AND SYSTEM THEREFOR - A NOx adsorber catalyst may comprise a housing defining an inlet configured to receive exhaust gas produced by an internal combustion engine, an outlet and a chamber between the inlet and the outlet. A NOx adsorber element may be positioned in the chamber adjacent to the inlet. The NOx adsorber element may be configured to trap NOx in the exhaust gas during lean fuel operation of the engine, and to release the trapped NOx and reduce the released NOx to nitrogen during rich fuel operation of the engine. A hydrocarbon trap may be positioned in the chamber between the NOx adsorber element and the outlet. The hydrocarbon trap may be configured to trap hydrocarbons that travel through the NOx adsorber element during the rich fuel operation of the engine. The trapped hydrocarbons may be oxidized by oxygen present in the exhaust gas during lean fuel operation following rich fuel operation. | 12-11-2008 |
20080302093 | MULTI-ENGINE SYSTEM WITH ON-BOARD AMMONIA PRODUCTION - A power system is provided having a first power source including at least one engine configured to combust a first air/fuel mixture and produce a first exhaust stream. The fuel of the first air/fuel mixture may be liquefied petroleum gas. The system also has a first exhaust passageway fluidly connected to the first power source and configured to receive the first exhaust stream. In addition, the system has a second power source including at least one engine configured to combust a second fuel/air mixture and produce a second exhaust stream. Furthermore, the system has a second exhaust passageway fluidly connected to the second power source and configured to receive the second exhaust stream. The system further has a first catalyst disposed within the first exhaust passageway to convert at least a portion of the first exhaust stream to ammonia | 12-11-2008 |
20080307778 | Fixing Device of Catalyst Substrate - A fixing device includes a silencer and a catalyst mantle. The silencer is communicated with an exhausting route of an internal combustion engine. The silencer has at least one clapboard to divide inner space thereof for forming a plurality of expanding rooms, which are communicated with each other and configured for guiding waste gas. The catalyst mantle is integrated on the clapboard. The catalyst mantle has an admission terminal and an exhaust terminal communicated with the plurality of expanding rooms. A substrate having catalyst coated thereon is arranged in the catalyst mantle between the admission terminal and the exhaust terminal. The present fixing device improves the fixing capacity of the substrate, and decreases the manufacturing steps for arranging the catalyst mantle in the silencer. | 12-18-2008 |
20080307779 | Regenerable sulfur traps for on-board vehicle applications - Provided are improved regenerable SO | 12-18-2008 |
20080314034 | Exhaust System for a Spark-Ignited Internal Combustion Engine - An exhaust system for a spark-ignited internal combustion engine comprises a three-way catalyst composition including an oxygen storage component, which TWC composition is coated on a flow-through monolith substrate, which substrate comprising a plurality of channels, each channel having a length extending from an inlet end to an outlet end and a single lambda sensor, wherein the substrate comprises a portion of the plurality of channels wherein the TWC composition in at least a part of the length of channels extending from the inlet end has a reduced oxygen storage activity, or no oxygen storage activity, relative to the TWC composition in a remainder of the substrate, the arrangement being such that the single lambda sensor is contacted substantially only with exhaust gas that has first contacted the TWC composition having a reduced oxygen storage activity or no oxygen storage activity. | 12-25-2008 |
20090000282 | PERFORMANCE EXHAUST SYSTEM - An exhaust system for a motorcycle engine including a header having an upstream end adjacent a combustion chamber of the engine and having a downstream end opposite the upstream end. The exhaust system includes a catalytic converter positioned downstream of the combustion chamber and configured to improve the emissions quality of exhaust gases discharged from the combustion chamber. The exhaust system further includes a perforated section at least partially defining an exhaust passageway, the perforated section disposed adjacent the downstream end of the header. A resonator chamber is in fluid communication with the perforated section. The resonator chamber is configured to allow expansion of the exhaust gases in the exhaust passageway through the perforated section. | 01-01-2009 |
20090007550 | EXHAUST SYSTEM FOR EIGHT-CYLINDER ENGINE - An exhaust manifold includes first to eighth upstream exhaust pipes extending respectively from first to eighth cylinders ignited in that order; first to fourth midway exhaust pipes extending respectively from a joint of extended ends of the first and fifth upstream exhaust pipes, a joint of extended ends of the second and sixth upstream exhaust pipes, a joint of extended ends of the third and seventh upstream exhaust pipes, and a joint of extended ends of the fourth and eighth upstream exhaust pipes; and first and second downstream exhaust pipes extending respectively from a joint of extended ends of the first and third midway exhaust pipes and a joint of extended ends of the second and fourth midway exhaust pipes for communicating the respective joints to the ambient atmosphere. | 01-08-2009 |
20090007551 | Exhaust Gas Aftertreatment System - An exhaust gas after treatment system for treating exhaust gases from an internal combustion engine is provided. The system includes a soot catalytic converter and an SCR catalytic converter, which reduces NOx-emissions by means of a reagent delivered via an injector located upstream of the SCR catalytic converter. According to the invention the soot catalytic converter is located between the injector and the SCR-catalytic converter. | 01-08-2009 |
20090013673 | MUFFLER FOR SMALL ENGINE - A muffler for a small engine includes a first expansion chamber | 01-15-2009 |
20090019841 | VEHICLE EXHAUST SYSTEM - An exhaust system for a V-engine vehicle with enhanced exhaust gas purifying capacity and output performance is provided. In the exhaust system, a second bank offset from a first bank backward in the longitudinal direction of the vehicle is mounted in an engine compartment ( | 01-22-2009 |
20090025376 | Securing catalyst element in catalytic converter with bolted bar - A catalytic converter has a housing. The housing defines a conduit and has a support wall defining an opening in the conduit. A removable catalyst element covers the opening for treating an exhaust gas passing through the conduit. A removable bar abuts the catalyst element. A first end of the bar is anchored to the wall and a second end of the bar is bolted to the wall thus clamping the catalyst element between the wall and the bar. | 01-29-2009 |
20090025377 | Holding Material For Pollution Control Element And Pollution Control Apparatus - A holding material ( | 01-29-2009 |
20090031712 | CATALYSTS WITH SLOW, PASSIVE RELEASE OF ALKALI IONS - Described is a method of slowly releasing a catalyst for, inter alia, the purpose of soot oxidation in a particulate filter. An example method includes incorporating an alkali metal oxide in a glass. Slow leaching of the alkali from the glass provides a means to gradually deliver the catalyst over extended periods. Additionally, the example method includes increasing the amount of alkaline metal ions that may be leached from the glass. | 02-05-2009 |
20090038297 | Ceramic Catalyst for NOx Oxidation and NOx Conversion in Emission Control Systems - Ceramic catalytic compositions, systems, and methods for oxidizing, converting and/or removing NO | 02-12-2009 |
20090038298 | Approach for Injecting a Reductant - A method of operating an internal combustion engine having a reductant delivery and storage system in an emission control system is disclosed. The method comprises applying an ultrasonic field to a reductant-containing liquid in the reductant storage device to generate a mist of the reductant-containing liquid, and selectively introducing an amount of mist to an exhaust system coupled to the catalyst based on an engine operating condition. | 02-12-2009 |
20090044521 | Catalyst for treating exhaust gas and device for treating exhaust gas using the same - A catalyst for treating an exhaust gas has at least a carrier and plural layers formed on the carrier, wherein at least one layer of the above plural layers has an interstice in the layer, and at least one layer of the above plural layers contains a catalyst component. The above catalyst for treating an exhaust gas allows the enhancement of the diffusion of an exhaust gas in a catalyst layer, which results in the improvement of catalyst efficiency. | 02-19-2009 |
20090044522 | EXHAUST DEVICE FOR A DIESEL ENGINE - The present invention has an object to provide an exhaust device for a diesel engine capable of surely burning flammable gas in an exhaust route. | 02-19-2009 |
20090049831 | POLLUTION CONTROL ELEMENT-MOUNTING MEMBER AND POLLUTION CONTROL DEVICE - A pollution control element-mounting member suitable for mounting a pollution control element within a casing of a pollution control device. The pollution control element-mounting member comprises a mat of a fiber material having a predetermined thickness, with the mat having a combination of at least two types of binders having different glass transition temperatures (Tg) impregnated therein. | 02-26-2009 |
20090056319 | Exhaust Aftertreatment System with Pre-Catalysis - An exhaust aftertreatment system includes an exhaust tube or housing having a catalyzed inner wall catalytically reacting with engine exhaust prior to reaching an aftertreatment element. | 03-05-2009 |
20090056320 | Exhaust system having catalytically active particulate filter - A catalyst is disclosed. The catalyst contains a ternary nitride and at least one of gold, osmium, iridium, palladium, rhodium, rhenium, ruthenium, or cesium. The catalyst may be used for a particulate filter in an engine exhaust treatment system. | 03-05-2009 |
20090094965 | EXHAUST SYSTEM OF OUTBOARD MOTOR - An exhaust system of an outboard motor includes: an exhaust passage forward portion including exhaust passages for leading exhaust in the exhaust passage of an exhaust manifold; an exhaust passage reversed portion formed in parallel with the exhaust passage of the exhaust passage forward portion and including exhaust passages communicating with an exhaust passage in an engine holder; and an exhaust passage U-turn portion including an exhaust passage communicating with the exhaust passage of the exhaust passage forward portion and the exhaust passage of the exhaust passage reversed portion. A catalyst for purifying the exhaust is disposed at a junction between the exhaust passages. | 04-16-2009 |
20090107124 | CATALYST-SUPPORTED PARTICULATE FILTER - A catalyst layer formed on the walls of exhaust gas channels in a particulate filter contains a catalyst material containing at least two kinds of primary particles selected from the group consisting of primary particles of activated alumina, primary particles of a ZrNd-based mixed oxide and primary particles of a CeZr-based mixed oxide. The catalyst material is formed so that primary particles of one of the ZrNd-based mixed oxide and the CeZr-based mixed oxide are dispersedly carried on the surface of each of secondary particles. Each secondary particle is formed by cohesion of at least one kind of primary particles selected from the group consisting of primary particles of activated alumina and primary particles of the other of the ZrNd-based mixed oxide and the CeZr-based mixed oxide. | 04-30-2009 |
20090120076 | PROCESS FOR REDUCING NO2 FROM COMBUSTION SYSTEM EXHAUST - An exhaust system for treating an exhaust gas composition having NO | 05-14-2009 |
20090120077 | GAS TEMPERATURE CONTROL APPARATUS FOR DENOX BOILER IN ENGINE COGENERATION PLANT - A gas temperature control apparatus for a DeNOx boiler in an engine cogeneration plant is installed to keep a reaction temperature of denitrification catalyst used to remove nitrogen oxide generated from an internal combustion engine in the engine cogeneration plant. The apparatus includes a connection passageway between a high-temperature gas part of a combustion tank of the boiler and an intermediate-temperature gas part formed after a first heat exchange, and a flow control valve mounted in the passageway to thereby control a volume of bypass combustion gas. The apparatus can easily raise temperature of combustion gas even though temperature of the inside water of the boiler does not reach a normal operation state since the flow control valve mounted in the connection passageway between the high-temperature gas part and the intermediate-temperature gas part, thereby greatly reducing a time period to reach an activation temperature of the denitrification catalyst. | 05-14-2009 |
20090120078 | Apparatus for Treating Exhaust Gas of an Internal Combustion Engine - An apparatus for treating exhaust gas of an internal combustion engine, includes a feed conduit feeding aqueous solution, a hydrolysis catalytic converter connected to the feed conduit and an SCR catalytic converter through which exhaust gas flows. A rod-shaped heating element heats at least parts of the feed conduit and/or hydrolysis catalytic converter. The apparatus provides a compact structure of a feed conduit heated by a rod-shaped element and a corresponding hydrolysis catalytic converter, with which an aqueous solution containing urea can be evaporated and then hydrolyzed to a gas stream containing ammonia. This gas stream serves as a reducing agent in the SCR process. The compact configuration allows installation in very confined space conditions. The hydrolysis catalytic converter, through which exhaust gas does not flow, permits the volume of the hydrolysis catalytic converter to be decisively reduced, since significantly smaller mass flows of gas need to be hydrolyzed therein. | 05-14-2009 |
20090133390 | Exhaust gas line of an internal combustion engine - The invention relates to an exhaust gas line ( | 05-28-2009 |
20090139215 | METHODS FOR REDUCING EMISSIONS FROM DIESEL ENGINES - A method is provided for operating a diesel engine with reduced emissions. The method comprises combusting a first biodiesel blend fuel in a diesel engine resulting in the production of diesel exhaust gases containing NOx. The diesel exhaust gases are admixed with a second biodiesel blend fuel, and the second biodiesel blend fuel is hydrolyzed to form reducing agents. The diesel exhaust gases containing NOx are passed through an NOx-reducing catalyst to reduce the NOx through a selective catalytic reduction reaction with the reducing agents. The invention further provides a method for operating a diesel engine with reduced emissions, comprising combusting a first biodiesel blend fuel in a diesel engine resulting in the production of diesel exhaust gases containing NOx. A second biodiesel blend fuel is converted in a fuel processor thereby forming reducing agents, and the diesel exhaust gases are admixed with the reducing agents. The diesel exhaust gases containing NOx are passed through an NOx-reducing catalyst to reduce the NOx through a selective catalytic reduction reaction with the reducing agents. | 06-04-2009 |
20090145118 | EXHAUST COMPONENT OF GAS EXHAUST LINE - The invention relates to an exhaust component in a gas exhaust line for gases produced by the combustion of a fuel in a heat engine. In the gas flow direction, there is a first connection to an upstream pipe carrying gases from the engine. There is also a first exhaust tube and a second exhaust tube, these two tubes being parallel and being connected to the first connection. There is a second connection to a downstream gas discharge pipe, connected to the parallel exhaust tubes. The component is characterized in that, firstly the first tube has a depolluting component, and the second tube has a silencer. The second connection is a three-way valve. | 06-11-2009 |
20090151340 | EXHAUST GAS PURIFICATION DEVICE - An exhaust gas purification device has an injector and a wall-flow type honeycomb support. The injector supplies fuel to the honeycomb support. The honeycomb support has a plurality of porous walls separating a plurality of inlet cells and a plurality of outlet cells. The exhaust gas flowing into the inlet cells flows through the porous walls into the outlet cells. Each porous wall has an upstream surface facing the inlet cell and a downstream surface facing the outlet cell. An upstream catalytic layer is formed on the upstream surface and a downstream catalytic layer is formed on the downstream surface. One of the upstream catalytic layer and the downstream catalytic layer is composed of a fuel reforming catalyst whose function is to reform the fuel to generate a reducing agent, and the other of the upstream catalytic layer and the downstream catalytic layer has a catalytic function which is different from the function of the fuel reforming catalyst. | 06-18-2009 |
20090165448 | CATALYST ARRANGEMENT CONSTRUCTION OF MOTORCYCLE - An engine has a crankcase, and a cylinder which extends from an upper portion of the crankcase toward a front side. In a space which is formed at an upper side of a horizontal plane which substantially horizontally extends from a bottom surface of the crankcase, a catalyst storage chamber is arranged in such a manner that an axis of the catalyst converter is in a direction of a crankshaft. The space is arranged just below a front surface of the cylinder and forward of a front surface of the crankcase. | 07-02-2009 |
20090173063 | Mitigation of Particulates and NOx in Engine Exhaust - An emission treatment system and associated method for treating an exhaust stream containing nitrogen oxides and particulate matter are disclosed. One embodiment of the system comprises a flow-through oxidation catalyst, a reductant injector downstream from the oxidation catalyst, a particulate filter downstream from the reductant injector, an SCR catalyst downstream from the particulate filter and an ammonia oxidation catalyst downstream from the SCR catalyst. An embodiment of the method comprises passing the exhaust gas stream through the oxidation catalyst, injecting a reductant into the exhaust gas stream, passing the exhaust gas stream through the particulate filter, passing the exhaust gas stream through an SCR catalyst, and passing the exhaust gas stream through an ammonia oxidation catalyst. | 07-09-2009 |
20090173064 | EXHAUST SYSTEM WITH IMPROVED NOx EMISSION CONTROL - An exhaust system includes a selective catalytic reduction (SCR) unit and a NO | 07-09-2009 |
20090173065 | EXHAUST GAS CATALYST AND EXHAUST GAS PROCESSING APPARATUS USING SAME - An exhaust gas catalyst where the catalyst efficiency is improved by enhancing diffusion of the exhaust gas in a catalyst layer. An exhaust gas catalyst comprises at least a carrier and a plurality of layers formed on the carrier. At least one of the layers has pores therein, and at least one other layer has pores therein and contains, as catalyst components, a noble metal, alumina and a complex oxide mainly containing ceria, zirconia and one or more rare earth elements other than cerium. | 07-09-2009 |
20090188245 | INSULATED DOUBLE-WALLED EXHAUST SYSTEM COMPONENT AND METHOD OF MAKING THE SAME - A double-walled exhaust system component having hollow ceramic microspheres disposed between inner and outer pipes and method of making the same. The hollow ceramic microspheres have a size distribution wherein, on a bulk volume basis, at least 90 percent of the hollow ceramic microsphere have a size of less than 150 micrometers. | 07-30-2009 |
20090188246 | Deflector Plate to Enhance Fluid Stream Contact with a Catalyst - A low-cost catalytic article is provided for treating gaseous fluid streams such as exhaust streams from gasoline-powered engines. The articles contain residence chambers defined by chamber walls and foraminous catalytic elements that contain a catalyst composition for converting a reactant contained in the fluid stream, and deflectors, which increase the residence time of the fluid stream in the residence chamber and the contact time of the fluid stream with the catalytic element. | 07-30-2009 |
20090199547 | METHOD AND APPARATUS FOR EXHAUST AFTERTREATMENT IN A SPARK-IGNITION DIRECT-INJECTION INTERNAL COMBUSTION ENGINE - The disclosure sets forth a spark-ignition, direct-fuel injection internal combustion engine selectively operative at an air/fuel ratio lean of stoichiometry and fluidly connected to an exhaust aftertreatment system. The exhaust aftertreatment system consists essentially of an electro-thermal heating element adjoining a converter element. A control system comprising a control module is signally connected to a sensing device and adapted to monitor a temperature of the converter element and operatively connected to the engine and operative to connect the electro-thermal heating element to an electric power source. | 08-13-2009 |
20090199548 | EXHAUST GAS PURIFICATION SYSTEM AND METHOD FOR INTERNAL COMBUSTION ENGINE - Engine air-fuel ratio controlling means is provided to control an exhaust air-fuel ratio that is the ratio between the air contained in the exhaust gas discharged from the engine and the fuel element contained in the same exhaust gas and acting as a reducing agent at a NOx catalyst by controlling the air-fuel ratio of the gas combusted in the engine. Fuel adding means is provided upstream of the NOx catalyst in an exhaust passage to add fuel into the exhaust gas. During the SOx poisoning recovery control, when developing a state enabling SOx reduction reactions, the exhaust gas air-fuel ratio of the exhaust gas discharged from the engine and the amount of fuel added from the fuel adding means are controlled to minimize the sum of the amount of fuel injected in the engine and the amount of fuel added from the fuel adding means. | 08-13-2009 |
20090199549 | Apparatus For Reducing Dibenzodioxin Emissions And Dibenzofuran Emissions From Transition Metal-Containing Catalyzers - A device for reducing the emission of polychlorinated dibenzodioxins (PCDD) and polychlorinated dibenzofurans (PCDF) from transition metal-containing catalyzers for selective catalytic reduction of nitric oxides in the exhaust gas of an internal combustion engine by means of ammonia and/or reducing agents which split off ammonia. At least one catalyzer for oxidizing hydrocarbon-containing PCDD precursor substances and PCDF is arranged upstream of the at least one transition metal-containing SCR catalyzer and/or at least one catalyzer for degrading precursor substances for degrading the polychlorinated dibenzodioxins and/or polychlorinated dibenzofurans is arranged downstream of the at least one transition metal-containing catalyzer. The at least one catalyzer for degrading PCDD and PCDF and/or the at least one catalyzer for oxidizing hydrocarbon-containing precursor substances thereof are/is additionally active for the reduction of nitric oxides by means of ammonia. | 08-13-2009 |
20090217651 | ARRANGEMENT AND METHOD FOR REMOVAL OF PARTICULATES IN A GAS FLOW - An arrangement for removal of particulates in a gas flow includes at least one gas passage that is at least partly surrounded by a porous material. An arrangement for exposing the gas passage to sound that induces gas movements in a direction towards the porous material is provided. A method for removal of particulates in a gas flow is also provided. | 09-03-2009 |
20090217652 | Exhaust System Comprising Zoned Oxidation Catalyst - An exhaust system for a lean-burn internal combustion engine comprises a catalyst for oxidising carbon monoxide and hydrocarbons comprising a flow-through substrate monolith comprising a first platinum group metal (PGM) zone containing at least one PGM supported on a surface area-increasing washcoat component, a second PGM zone containing at least one PGM supported on a surface area-increasing washcoat component, a third PGM zone containing at least one PGM supported on a surface area-increasing washcoat component wherein both the PGM loading in the first PGM zone and the PGM loading in the third PGM zone is greater than the PGM loading in the second PGM zone and wherein the first PGM zone comprises a washcoat loading that is less than a washcoat loading of the third PGM zone. | 09-03-2009 |
20090241524 | Particulate Matter Pruifying Device and Manufacturing Method thereof - To provide a particulate matter purifying device which is capable of providing excessive deposition of particulate matter. | 10-01-2009 |
20090249773 | Diesel Turbine SCR Catalyst - A system for treating exhaust gases from an engine is described. The system includes, the exhaust gases routed from the engine to atmosphere through an exhaust passage, the system comprising: an injector directing a spray of reductant into the exhaust gases routed from the engine to atmosphere; an exhaust separation passage that separates an exhaust gas flow received from the engine into a plurality of separate exhaust gas flows; a plurality of oxidation catalysts, each of which receives one of the plurality of separate exhaust gas flows; a flow combining passage that receives the plurality of separate exhaust gas flows and combines them into a re-combined exhaust gas flow; a turbocharger that receives the re-combined exhaust gas flow from the flow combining passage; and a selective catalytic reduction catalyst positioned downstream of the turbocharger. | 10-08-2009 |
20090255237 | SCR Catalytic Converter Without NH3 or Urea Injection - The present invention relates to a Selective Catalytic Reduction (SCR) catalytic converter that does not require the injection of a reducing agent, and, particularly, to an open-flow type or wall-flow type SCR catalytic converter that does not require the injection of a reducing agent, which includes a front portion, in which first supports supporting modified catalyst components are applied on the inner surfaces of porous partition walls, a middle portion, in which second supports supporting ammonia synthesis catalyst components are applied on the inner surfaces of porous partition walls, and a rear portion, in which third supports supporting SCR reducing catalyst components are applied on the inner surfaces of porous partition walls. More particularly, the present invention relates to a catalytic converter, which can improve a reduction rate of NOx without requiring the injection of an ammonia reducing agent from the outside. | 10-15-2009 |
20090255238 | Exhaust Gas Purifying Apparatus and Exhaust Gas Purifying Method - The apparatus comprises a lean burn engine, a Pd catalyst | 10-15-2009 |
20090255239 | EXHAUST SYSTEM WITH O2 SENSOR - The present invention relates to an exhaust system having a riser adapted to be mounted to the exhaust inlet of a marine engine and a turndown connected to the riser. The riser and turndown define a primary exhaust passage to direct exhaust gases downwardly toward the discharge opening. A secondary passage, a tube, is integrated to the turndown within the primary exhaust passage. An O2 sensor is mounted within the tube. The tube has a diameter that is less than the diameter of the primary exhaust passage. With the diameter being less, the exhaust gases in the secondary passage have a pressure that is greater than in the primary exhaust passage which eliminates or at least reduces the ability for water to enter the secondary passage protecting the O2 sensor from damage. | 10-15-2009 |
20090255240 | Sulfur-Resistant Exhaust Gas Aftertreatment System For The Reduction Of Nitrogen Oxides - An arrangement for aftertreatment of exhaust gas for lean-burn internal combustion engines such as diesel engines and Otto engines with direct injection has a NO | 10-15-2009 |
20090266062 | PRE-CATALYST FOR PREVENTING FACE-PLUGGING ON AN INLET FACE OF AN AFTERTREATMENT DEVICE AND METHOD OF THE SAME - A pre-catalyst device configured to be disposed upstream of a main aftertreatment device of an engine exhaust system. An oxidizing material is disposed on an inlet face of the pre-catalyst device, where the oxidizing material is configured to oxidize engine exhaust before the engine exhaust reaches the main aftertreatment device of the engine exhaust system. | 10-29-2009 |
20090288401 | COMPOSITE OXIDE FOR EXHAUST GAS PURIFYING CATALYST AND EXHAUST GAS PURIFYING CATALYST, AND DIESEL EXHAUST GAS PURIFYING FILTER - To provide an oxidation catalyst capable of burning PM of diesel, engine exhausts gas at a low temperature, and hardly subjected to poisoning due to sulfur oxide. A composite oxide contains Ce, Bi, and M (wherein M is one or more elements selected from Mg, Ca, Sr, and Ba) and oxygen, and is manufactured, with a molar ratio of Ce, Bi, M expressed by Ce:Bi:M=(1−x−y):x:y, satisfying 011-26-2009 | |
20090288402 | Emission Treatment Catalysts, Systems and Methods - Zoned diesel oxidation catalysts containing a higher precious metal loading in the inlet zone that the outlet zone and an equal or shorter length inlet zone are described. Emission treatment systems and methods of remediating nitrogen oxides (NOx), particulate matter, and gaseous hydrocarbons using zoned diesel oxidation catalysts are also described. | 11-26-2009 |
20090293461 | Exhaust Heat Recovery Device - An exhaust heat recovery device includes an accommodating portion extending continuously without shrinking a section therein and adapted to allow exhaust gas of an internal combustion engine to pass therethrough, a catalyst disposed in the accommodating portion for cleaning the exhaust gas, an evaporator disposed adjacent to the catalyst on a downstream side of an exhaust gas flow in the accommodating portion, and a condenser for condensing the working medium by radiating heat of the working medium flowing thereinto from the evaporator so as to recover exhaust heat on the coolant side. The condenser is located to return the condensed working medium to the evaporator. | 12-03-2009 |
20090293462 | CATALYTIC MUFFLER HAVING CROSSOVER PASSAGEWAY FOR SECONDARY AIR - A catalytic muffler that treats the exhaust gases of an internal combustion engine. The catalytic muffler includes a catalyst chamber, a catalyst disposed in the catalyst chamber, an upstream chamber disposed upstream of the catalyst, an exhaust inlet configured to receive exhaust gases, an exhaust outlet configured to discharge converted gases converted by said catalyst to the atmosphere, and further configured to receive secondary air, and a passageway communicating between the exhaust outlet and the upstream chamber, and configured to provide the secondary air received by the exhaust outlet to the upstream chamber. | 12-03-2009 |
20090320457 | NOx Adsorber Catalyst with Superior Low Temperature Performance - The lean NOx trap catalyst composition of the present invention comprises distinct layers, or zone configuration or multi-brick arrangement. The top layer, front zone or front brick is free of any alkali or alkaline earth NOx trapping components. The under layer, rear zone or rear brick may contain any desirable NOx trapping component in contact with a precious metals group catalyst (e.g., Pt). Catalysts of this invention show wide temperature operation window with superior low temperature performance. | 12-31-2009 |
20100005789 | CONNECTING STRUCTURE OF EXHAUST SYSTEM MEMBER AND INSERTION MEMBER - A connecting structure of an exhaust system member and an insertion member includes a first divided part | 01-14-2010 |
20100011752 | EXHAUST MUFFLER COMPRISING A CATALYTIC CONVERTER - A catalytic muffler for an internal combustion engine of a portable working tool, e.g. a chain saw or a trimmer, having a housing designed to be directly attached to an exhaust port of an engine. The housing further includes a front chamber and a rear chamber divided from each other by an intermediate baffle. The housing further having an inner housing having a first open end constituting the exhaust gas inlet located in the rear chamber. The inner housing includes a catalyst body through which essentially all exhaust gas flows when in use. A second open end of the inner housing is arranged in one of said front and rear chambers and the exhaust gas outlet of the muffler is arranged in the other chamber such that treated gas in use flows through at least one aperture in the intermediate baffle from one chamber to the other. | 01-21-2010 |
20100018191 | CATALYTIC SMOG REDUCTION - A device, method of making, and method of using, illustratively wherein a container includes an inlet and an outlet; a catalytic converter intermediate in a path between the inlet and the outlet; at least one surface arranged to ensure at least a majority of gas received from the inlet traverses a first portion of the path from the inlet to the catalytic converter and communicates heat from the catalytic converter to the container; and an optical indicator arranged to indicate outside the container whether the catalytic converter is operating inside the container to reduce concentration of a smog-generating chemical with respect to the gas. | 01-28-2010 |
20100050616 | EXHAUST AFTERTREATMENT SYSTEM - An apparatus for treating an exhaust gas feedstream from an internal combustion engine operating lean of stoichiometry comprises a particulate filter device comprising a porous substrate element having a hydrocarbon-selective catalytically reactive washcoat. The hydrocarbon-selective catalytically reactive washcoat comprises a silver-oxide catalytic material on an alumina-based washcoat. An injection device is operative to inject a hydrocarbon reductant upstream of the particulate filter device. | 03-04-2010 |
20100050617 | FERRITIC STAINLES STEEL FOR EXHAUST GAS PATH MEMBERS - Provided is a stainless steel for exhaust gas path members, which has a composition including, in terms of % by mass, at most 0.03% of C, at most 1% of Si, at most 1.5% of Mn, at most 0.6% of Ni, from 10 to 20% of Cr, from more than 0.5 to 0.7% of Nb, from 0.05 to 0.3% of Ti, from more than 1 to 2% of Cu, at most 0.2% of V, at most 0.03% of N, from 0.0005 to 0.02% of B, and optionally at most 0.1% of Al, and further optionally at least one of Mo, W, Zr and Co in an amount of at most 4% in total, with a balance of Fe and inevitable impurities, and which has a texture where the Cu phase and the Nb compound phase having a major diameter of at least 0.5 μm are controlled to be in an amount of at most 10 grains/25 μm | 03-04-2010 |
20100050618 | EXHAUST GAS AFTER TREATMENT APPARATUS OF A MOTOR VEHICLE - The invention relates to an exhaust gas after treatment apparatus having a hollow cylindrical casing shell ( | 03-04-2010 |
20100058747 | Model For Inferring Temperature Of Exhaust Gas At An Exhaust Manifold Using Temperature Measured At Entrance Of A Diesel Oxidation Catalyst - An engine processor ( | 03-11-2010 |
20100083644 | APPARATUS AND METHOD FOR MOUNTING A CLOSE-COUPLED CATALYST - Mounting close-coupled catalysts for internal combustion engines. In one aspect, supporting a catalyst in an internal combustion engine includes a mounting bracket coupled to a base surface of an engine block. One or more support rods are coupled between the mounting bracket and a housing of the catalyst, such that the catalyst is coupled to and supported by the base surface of the engine block. | 04-08-2010 |
20100095658 | CATALYST SYSTEM AND USE THEREOF - Soot filters for removing soot from the exhaust gas of lean-burn engines become blocked with progressive operating duration on account of the deposition of soot, and must therefore be regenerated at regular intervals. It has been found that reliable operation of the soot filter is possible only if an active regeneration is carried out from time to time by increasing the exhaust-gas temperature to the soot ignition temperature. For this purpose, an oxidation catalytic converter is usually arranged upstream of the soot filter, and the exhaust-gas temperature is increased by means of the catalytic combustion of additionally injected fuel. Here, the oxidation catalytic converter is subjected to high temperature loading and therefore ages very quickly. It has surprisingly been found that the ageing of the oxidation catalytic converter can be slowed if said oxidation catalytic converter is split into at least two separate catalytic converters and the distance between said separate catalytic converters is 2 to 30 mm. | 04-22-2010 |
20100101220 | EXHAUST GAS PURIFYING CATALYST - An exhaust gas purifying catalyst which is disposed in an exhaust pipe of an internal combustion engine, includes: a substrate; and a catalyst layer, supported in the substrate and including: noble metals including platinum (Pt) and palladium (Pd); a heat-resistant inorganic oxide; and a NOx trapping material. The exhaust gas purifying catalyst adsorbs NOx in an exhaust gase when an exhaust air-fuel ratio is in a lean state and desorbs and reduces the adsorbed NOx when the exhaust air-fuel ratio is in a stoichiometric state or a rich state. (Pt/Pd) which is a ratio of amount of the platinum (Pt) to amount of the palladium (Pd) is 0.7 or more and less than 1.0. | 04-29-2010 |
20100115931 | METHOD OF FORMING SHEET MEMBER, EXHAUST GAS TREATMENT APPARATUS INCLUDING THE SHEET MEMBER, AND MUFFLING APPARATUS INCLUDING THE SHEET MEMBER - A method of forming a sheet member includes feeding first raw slurry into a forming device, dehydrating the first raw slurry to form a first forming body, feeding second raw slurry including inorganic fibers having a minimum diameter substantially equal to or less than 3 micrometers on the dehydrated first slurry, dehydrating the second raw slurry to form a second forming body on the first forming body, feeding third raw slurry into the forming device, dehydrating the third raw slurry to form a third forming body on the first and the second forming bodies, and compressing and dehydrating a forming body having a three-layer structure where the third forming body is formed on the first and the second forming bodies to form a sheet member having a three-layer structure. The first and third raw slurries include inorganic fibers having a minimum diameter substantially greater than 3 micrometers. | 05-13-2010 |
20100115932 | METERING SYSTEM - The invention relates to a metering system for injection of a reducing gent, especially a urea solution, into the exhaust gas stream of an internal combustion engine for selective catalytic reduction, the metering system being connected/connectable to a tank ( | 05-13-2010 |
20100115933 | EXHAUST MANIFOLD FOR INTERNAL COMBUSTION ENGINE - An exhaust manifold connected to exhaust ports of at least three straightly-arranged cylinders of an internal combustion engine is constructed by a primary exhaust pipe which extends from the foremost cylinder of the cylinders in the rearward direction of the engine along the direction of the straight arrangement of the cylinders and a plurality of secondary exhaust pipes which extend from the other cylinders except for the foremost cylinder to the primary exhaust pipe. The secondary exhaust pipes are collected to the primary exhaust pipe so that downstream end portions of the secondary exhaust pipes are wound into the center axis of the primary exhaust pipe at a plurality of points on the center axis, respectively. | 05-13-2010 |
20100126153 | INTERNAL COMBUSTION ENGINE - An in-line four-cylinder internal combustion engine wherein exhaust ports ( | 05-27-2010 |
20100126154 | PALLADIUM-RHODIUM SINGLE-LAYER CATALYST - A one-layer three-way catalyst is described for the cleaning of the exhaust gases of internal combustion engines with outstanding activity and thermal stability. The catalyst comprises an active aluminum oxide, a first cerium/zirconium mixed oxide and a second cerium/zirconium mixed oxide. The first cerium/zirconium mixed oxide has a higher zirconium oxide content than the second mixed oxide. The first cerium/zirconium mixed oxide is catalytically activated with rhodium and the second cerium/zirconium mixed oxide with palladium. | 05-27-2010 |
20100132343 | FILTER DEVICE FOR REDUCING AUTOMOBILE EXHAUST FUME - Disclosed herein is a filter device for reducing automobile exhaust fume. The filter device includes a case, a front flange mounted inside the case, a rear flange mounted inside the case, and a filter member mounted between the front and rear flanged. The case includes an inlet port, a porous tube and an exhaust port. The filter member includes a laminated-type or rolled-up type metallic foam filter mounted between the front and rear flanges, and a jacket wrapped around the metallic foam filter. The exhaust gas that flows inside the porous tube passes through the metallic foam filter. The jacket is formed in a network form to maintain the shape of the metallic foam filter and provide durability thereto. The jacket is formed with a rectangular vent hole. The jacket holds the metallic foam filter such that the shape, construction and position of the metallic foam filter can be maintained. | 06-03-2010 |
20100132344 | Device and Method for Metering Liquid Pollutant-Reducing Media into an Exhaust Gas Duct of an Internal Combustion Engine - The invention relates to a device and a method for metering liquid pollutant-reducing media into an exhaust gas duct of an exhaust gas line of an internal combustion engine, with at least one metering means which is located in or on the exhaust gas duct and downstream to which, viewed in the flow direction of the exhaust gas upstream from a catalytic converter arrangement, a baffle body is connected such that the liquid which has been metered by means of the metering means strikes a baffle body for its distribution. According to the invention the baffle body is formed by a static mixer which has a plurality of preferably single-blade guide vane plates which project away from the mixer plane at a given angle and which are aligned such that the metered liquid, especially liquid droplets, strikes the plane of the guide vane plates essentially perpendicularly. | 06-03-2010 |
20100139258 | EXHAUST MIXER WITH BACKWARD FLOW - An exhaust gas mixer configured to turn exhaust gas including a reluctant into a backward flow is provided. The mixer is further configured to turn the backward flow into a forward flow and direct the exhaust gas into an SCR. | 06-10-2010 |
20100162691 | METHOD OF DIAGNOSING THE PRESENCE OF AN EXHAUST AFTER-TREATMENT COMPONENT AND A USE OF THE METHOD FOR VEHICLE ON-BOARD DIAGNOSIS - In a method for diagnosing the presence of an internal combustion engine exhaust aftertreatment component on a vehicle, the exhaust temperature is measured downstream the aftertreatment component continuously over a time period to provide a first temperature signal with fluctuating amplitude. The temperature signal is modified to provide a second modified temperature signal. The first and second temperature signals are compared to detect any significant difference between the signals. | 07-01-2010 |
20100170231 | EXHAUST PIPE FOR VEHICLE-MOUNTED ENGINE - An exhaust pipe for a vehicle-mounted engine. An inner pipe inserted in an outer pipe contacts, at its outer end, with the inner peripheral surface of the outer pipe at a first position, the outer pipe contacts the inner pipe at a second position different from the first position, and thus an expansion chamber is formed between the inner pipe the outer pipe. The inner pipe includes a plurality of communication holes for communicating the inside of the inner pipe and the expansion chamber, thereby forming a muffler. An exhaust gas purification catalyst is provided within the outer pipe adjacent to the expansion chamber. On the inner peripheral surface of the outer pipe, a weir for stopping condensed water is provided between the outer end of the inner pipe and the exhaust gas purification catalyst. Consequently, in the exhaust pipe, deterioration of the purification function of the exhaust gas purification catalyst caused by contact of condensed water, which is produced when exhaust gas is cooled, with the exhaust gas purification catalyst can be suppressed. | 07-08-2010 |
20100170232 | Baffle for Distribution of Exhaust Flow - The present disclosure relates to an diesel exhaust treatment device including a main body having a central longitudinal axis that extends between first and second ends of the main body. A catalyzed substrate is positioned within an interior of the main body. A side inlet is positioned at a side of the main body for directing exhaust gas into the interior of the main body. A flow distribution element is positioned within the interior of the main body at a location between the side inlet and an upstream face of the substrate. The flow distribution element extends across a direction of exhaust flow through the main body and is mounted at a side of the main body that is opposite the side inlet. | 07-08-2010 |
20100170233 | System for Admixing a Reducing Agent to an Exhaust Gas Flow of an Internal-Combustion Engine - A system is provided for admixing a reducing agent to an exhaust gas flow of an internal-combustion engine. The system includes an exhaust line and a metering device for feeding the reducing agent into the exhaust line, the metering device is arranged in or on a hollow body arranged on the exhaust line. An inner volume of the hollow body is connected in an exhaust-gas-conducting manner with the exhaust line. The reducing agent is feedable by a nozzle into the hollow body. A jacket body is provided between the hollow body and the nozzle-fed reducing agent, which jacket body surrounds the reducing agent at least in areas in the inner volume. Accordingly, a depositing of reducing agent on the metering device and on the hollow body is substantially avoided. | 07-08-2010 |
20100186394 | Exhaust gas after treatment assembly - A combustion engine exhaust after treatment system mount, including a body, with a first mounting position, a second mounting position, and a foot for mounting the body to an engine or wall, the first mounting position having a first mounting surface, the second mounting position having a second mounting surface, the first mounting position having a first longitudinal axis, and the second mounting position having a second longitudinal axis, the first axis positioned substantially parallel to the second axis. In another aspect a combustion engine exhaust after treatment system is disclosed including such a mount and at least two exhaust gas after treatment components chosen from the group including a particle filter (PF), a muffler, a heat source for PF regeneration, a Selective Catalytic Reductor (SCR) and a mixing chamber, at least one of the components being positioned in the first mounting position and the at least one other component being positioned in the second mounting position, fluidly connected to the first component. | 07-29-2010 |
20100192553 | INTERNAL COMBUSTION ENGINE, VEHICLE, MARINE VESSEL, AND EXHAUST GAS CLEANING METHOD FOR INTERNAL COMBUSTION ENGINE - An internal combustion engine capable of improving cleaning efficiency by preventing an increase in the temperature of the exhaust gas to lessen the deterioration of the catalyst. The internal combustion engine includes a convergent section, a divergent section, and a branch section. The branch section branches a shock wave, propagating in a downstream direction at a higher velocity than exhaust gas flowing into an exhaust path from a combustion chamber when an exhaust valve is opened, from a portion of the exhaust path which is upstream with respect to the divergent section, and propagates the shock wave back to the exhaust path. The exhaust gas is caused to pass the convergent section and to collide against the shock wave between the branch section and the divergent section, so as to increase the pressure of the exhaust gas in the convergent section. Such exhaust gas is caused to pass the divergent section to generate a new shock wave and to decrease the temperature of the exhaust gas. A catalyst of an exhaust cleaning device is provided in a portion of the exhaust path which is downstream with respect to the divergent section. | 08-05-2010 |
20100192554 | ENGINE PART - An engine part has a construction which prevents the surface discoloration/deterioration associated with a high-temperature exhaust gas, irrespective of the type of Cr used in the formation of a chromium plating layer (hexavalent chromium or trivalent chromium). The engine part includes a metal substrate, a chromium plating layer covering at least a region of a surface of the metal substrate, the region being heated to a temperature of about 350° C. or more, and an intermediate plating layer provided between the metal substrate and the chromium plating layer. The chromium plating layer has a thickness of about 0.2 μm or more in the region. | 08-05-2010 |
20100212301 | Flow Device for an Exhaust System - A flow device for an exhaust system includes a body that defines an interior cavity. An exhaust inlet passage is disposed in the interior cavity. An exhaust outlet passage is disposed in the interior cavity so that at least a portion of the exhaust inlet passage circumferentially surrounds at least a portion of the exhaust outlet passage. A doser is adapted to inject reductants into the interior cavity of the body such that the reductants are injected in the same general direction as the direction of flow of the exhaust gases. | 08-26-2010 |
20100212302 | MONOLITH, CATALYST CONVERTOR FOR PURIFYING EXHAUST GAS USING THE SAME AND METHOD FOR MANUFACTURING THE CATALYST CONVERTOR - Provided is a catalyst converter for purifying exhaust gas and a method for manufacturing the catalyst converter, in which a heater is disposed between inner/outer monoliths, to thereby heighten a heat transfer efficiency and induce a uniform catalytic reaction, and to thereby enhance a processing performance, and minimize an electric power consumption and miniaturize a device. The catalyst converter includes: a heater having a winding portion which is wound so as to have a space therein and a pair of electric power terminals; inner and outer monoliths which are inserted in the inner and outer circumferential portions of the heater winding portion wherein each of the inner and outer monoliths includes a number of hollow cells on the surfaces of which catalysts have been coated and which are formed in the lengthy direction; and a housing in which a support assembly is assembled. | 08-26-2010 |
20100229541 | METHOD FOR OPERATING AN INTERNAL COMBUSTION ENGINE WITH AN SCR CATALYTIC CONVERTER - A method for operating an internal combustion engine of a motor vehicle is provided, wherein at least one SCR catalytic converter for the after-treatment of exhaust gases of the internal combustion engine is present. The method serves to assure that a sufficient quantity of reducing agent is supplied for the operation of the SCR catalytic converter. The motor vehicle has a fuel tank ( | 09-16-2010 |
20100242452 | INTERNAL COMBUSTION ENGINE - An internal combustion engine includes: an exhaust heat collector, in which exhaust gas exchanges heat with engine coolant, that heats the engine coolant; an EGR mechanism that recirculates a part of the exhaust gas to an intake passage through an EGR passage that branches from an exhaust passage; and an EGR cooler that cools the exhaust gas flowing through the EGR passage through heat exchange with the engine coolant supplied from the exhaust heat collector. | 09-30-2010 |
20100251701 | MUFFLER - A thermal emission-conversion muffler for reducing the toxic emissions output from the muffler has an inlet pipe, an outlet pipe, and a body extending lengthwise between the inlet and outlet pipes. The muffler further has a plurality of plates disposed within the body, and the plates extend in a sideways direction substantially between the side walls of the body. The plates are of a predetermined length, and adjacent plates are at a predetermined distance from each other. In one plate configuration, the plates are arranged in a substantially stacked manner and are parallel as regards exhaust gas flow passing through the muffler. | 10-07-2010 |
20100257851 | EXHAUST GAS PURIFYING APPARATUS - A plurality of catalytic units ( | 10-14-2010 |
20100263357 | THREE WAY CATALYST - A double-layer three-way catalyst for purification of the exhaust gases from internal combustion engines which has excellent activity and thermal stability is described. The catalyst contains active aluminium oxide and a first cerium/zirconium mixed oxide which are both catalytically activated with palladium in the first layer applied to a catalyst support. In the second layer which is in direct contact with the exhaust gas, the catalyst likewise contains an active aluminium oxide and a second cerium/zirconium mixed oxide which are both catalytically activated with rhodium. The second cerium/zirconium mixed oxide has a higher zirconium oxide content than the first mixed oxide. | 10-21-2010 |
20100263358 | Multi-Zoned Catalyst Compositions - Exhaust gas treatment substrates, and systems and methods including the same are provided. Catalyst substrates having flow properties where in configuring an outer, peripheral zone, more exhaust gas flows through a central zone as compared to the outer, peripheral zone. The outer, peripheral zone can have a trapping or adsorbing material on surfaces of its passages, or it can have a longer axial length as compared to the inner zone, or its passages can have smaller openings as compared to the inner zone. In one embodiment, an overcoat containing a trapping material such as a hydrocarbon trap is applied to an inlet end. In another embodiment, catalyst having an oxygen storage component is applied to an outlet end. | 10-21-2010 |
20100275586 | DEVICE FOR CLEANING EXHAUST GAS OF INTERNAL COMBUSTION ENGINE - The device for cleaning exhaust gas of the internal combustion engine includes means provided in an exhaust gas passage ( | 11-04-2010 |
20100287916 | PURIFICATION STRUCTURE INCORPORATING A BIASED ELECTROCHEMICAL CATALYST SYSTEM - A device for the purification of a polluted gas, for example an exhaust gas from a diesel or gasoline engine, comprising, in combination: A honeycomb structure, comprising at least one porous electron-conductive material forming the walls ( | 11-18-2010 |
20100287917 | EXHAUST PURIFICATION DEVICE FOR INTERNAL COMBUSTION ENGINE - An exhaust purification device for an internal combustion engine can achieve high NOx purifying performance independent of operating conditions of the engine. The exhaust purification device has a NOx purification catalyst ( | 11-18-2010 |
20100293930 | METHOD AND APPARATUS FOR AMMONIA FORMATION IN A CATALYTIC CONVERTER - An exhaust gas aftertreatment system for treating an engine-out exhaust gas feedstream of a spark-ignition direct-injection engine includes a multi-stage catalytic converter comprising a converter inlet, a converter outlet, and a substrate having a first end associated with the converter inlet and a second end associated with the converter outlet. The substrate further includes a multiplicity of flow passages between the first and second ends of the substrate, a first surface location corresponding to the first end of the substrate, and a second surface location corresponding to the second end of the substrate. A first washcoat stage is applied to the substrate at the first surface location corresponding to the first end of the substrate. A second washcoat stage is applied to the substrate at the second surface location corresponding to the second end of the substrate. The first and second washcoat stages include washcoats formulated to generate hydrogen and ammonia from the engine-out exhaust gas feedstream. An ammonia-selective catalytic reduction device is downstream of the first and second washcoat stages. | 11-25-2010 |
20100300081 | FLASH HEAT AMMONIA GENERATOR - An ammonia producing device for an exhaust system of an engine is provided. It includes a pressure vessel having a cavity for storage of pressurized gases. The pressure vessel includes insulation located at least partially about the cavity for limiting heat transfer from within the cavity. A flash heater is disposed within the cavity and adjacent a solid ammonia gas producing material. An outlet port extends from the pressure vessel and has a valve located therein for providing egress of pressurized gases from within the pressure vessel. | 12-02-2010 |
20100307143 | IC power plant, and method of operation - An internal combustion (IC) power plant includes an IC engine and exhaust system in combination. The IC engine of the power plant produces considerably greater torque and horse power, reduced emissions, improved volumetric efficiency, compared to an identical IC engine not combined with the inventive exhaust system. | 12-09-2010 |
20110005212 | VEHICLE CONTROL APPARATUS - A vehicle control apparatus includes: an accessory that adjusts torque that is output from an internal combustion engine, by giving load to the internal combustion engine; an ignition timing control portion that is provided so as to adjust ignition timing of the internal combustion engine, and that adjusts the torque output from the internal combustion engine by performing a retardation control of the ignition timing; an accessory load adjustment portion that adjusts an accessory load that is the load given from the accessory to the internal combustion engine; and a catalyst that purifies exhaust gas discharged from the internal combustion engine. The ignition timing control portion reduces the retardation of the ignition timing with increase in temperature of the catalyst. The accessory load adjustment portion increases the accessory load with increase in the temperature of the catalyst. | 01-13-2011 |
20110016854 | APPARATUS AND METHOD FOR INJECTION OF A FLUID FOR AN EXHAUST GASES TREATMENT DEVICE - An apparatus is provided for injection of a fluid for an exhaust gases treatment device of an internal combustion engine arrangement. The apparatus includes a fluid injector fed from a source of fluid under pressure through a fluid conduit, a feed valve in the fluid conduit between the source of fluid the said injector, a purge system including a gas conduit connecting a source of pressurized gas to the fluid conduit, a pressure limiter within the gas conduit, and a check valve downstream of the pressure limiter. The pressure limited by the pressure limiter is lower than the pressure of fluid delivered by the source of fluid. | 01-27-2011 |
20110030355 | Catalytic Converter and Process of Manufacture - A catalytic converter cartridge comprises multiple square, rectangular or other flat sided catalyst coated substrates, each substrate of which has each of its flat sides covered by a compressible mat material. These multiple mat covered substrates or modules are arranged into a multiple module array enclosed within a metal shell with each module preferably separated from adjacent modules by sheet metal spacers. | 02-10-2011 |
20110030356 | POLLUTION CONTROL DEVICES, REINFORCED MAT MATERIAL FOR USE THEREIN AND METHODS OF MAKING SAME - A reinforced mat ( | 02-10-2011 |
20110041486 | APPARATUS OF CATALYST FOR PURIFYING EXHAUST GAS AND METHOD FOR PURIFYING EXHAUST GAS - An apparatus of a catalyst for purifying exhaust gas suitable as a three-way catalyst (TWC) apparatus to be used for purifying carbon monoxide (CO), a hydrocarbon (HC) and a nitrogen oxide (NO | 02-24-2011 |
20110041487 | CATALYST APPARATUS AND EXHAUST GAS PURIFICATION SYSTEM FOR INTERNAL COMBUSTION ENGINE - An object is to provide a technology with which the temperature of exhaust gas can be raised with improved efficiency in cases where a catalyst apparatus including a catalyst having an oxidizing ability is provided in an exhaust passage of an internal combustion engine. According to the present invention, a catalyst apparatus | 02-24-2011 |
20110047992 | PARTIAL COATING OF PLATINUM GROUP METALS ON FILTER FOR INCREASED SOOT MASS LIMIT AND REDUCED COSTS - A diesel particulate filter has a thin band of washcoated filter material either on the inlet of the upstream side or the outlet of the downstream side. The washcoating is with platinum group metals (PGM), e.g., Pt and Pd added to the surface and pore structure of a DPF. The PDF should provide comparable or improved distance between active regeneration and/or should prevent HC/CO slip during active DPF regeneration. | 03-03-2011 |
20110067387 | Thermally Efficient Exhaust Treatment System for an Internal Combustion Engine - An exhaust system for an engine comprises a cylinder head having an integral exhaust manifold to collect exhaust gas exiting the engine combustion chambers. An exhaust gas conduit in fluid communication with the exhaust manifold comprises an inlet end connected to the cylinder head, a portion that extends towards an upper end of the internal combustion engine and an outlet end configured to define an inlet end of a multistage catalytic converter. The catalytic converter comprises a canister having an inlet end located adjacent the top of the engine and includes first and second catalyst substrates and a collector closing an outlet end of the canister. The outlet end of the canister is located adjacent to the bottom of the engine, and the first and the second catalyst substrates receive and convert constituents of exhaust gas passing from the inlet end of the canister to the outlet end. | 03-24-2011 |
20110083429 | CATALYST PASSING COMPONENT DETERMINING APPARATUS AND EXHAUST PURIFICATION APPARATUS FOR INTERNAL COMBUSTION ENGINE - The present invention comprises a selective reduction type NOx catalyst located in an exhaust passage and being capable of purifying NOx with ammonia, an oxidation catalyst located downstream of the selective reduction type NOx catalyst, an upstream sensor located between the selective reduction type NOx catalyst and the oxidation catalyst and having ability to detect both ammonia and NOx, a downstream sensor located downstream of the oxidation catalyst and having ability to detect both ammonia and NOx, and determining means for determining a component passing through the selective reduction type NOx catalyst, based upon a relation between output of the upstream sensor and output of the downstream sensor. | 04-14-2011 |
20110088377 | EXHAUST PURIFICATION DEVICE OF INTERNAL COMBUSTION ENGINE - In an exhaust purification device of an internal combustion engine, a pair of upstream side NO | 04-21-2011 |
20110094211 | EXHAUST GAS PURIFYING CATALYST - An exhaust gas purifying catalyst includes a monolithic substrate ( | 04-28-2011 |
20110099987 | EXHAUST GAS PURIFICATION CATALYST - An exhaust gas purification catalyst includes: a lower catalyst layer that contains a ceria-zirconia mixed oxide having 50 to 70 mass % of CeO | 05-05-2011 |
20110107750 | EXHAUST EMISSION CONTROL DEVICE - An exhaust emission control device is provided which is compact in size and has favorable dispersibility of exhaust gas from a muffling structure | 05-12-2011 |
20110107751 | EXHAUST GAS PURIFICATION CATALYST - In an exhaust gas purification catalyst in which Rh-doped CeZr-based mixed oxide powder and precious-metal (at least one of Pt and Pd)-supporting heat-resistant powder are included in a catalyst layer 2 provided on a support 1, Rh-doped CeZr-based mixed oxide particles either contain at least one of Pr, La, and Y, or are complexed with Al | 05-12-2011 |
20110107752 | Small Engine Layered Catalyst Article and Method of Making - Catalyst articles comprising substantially only a palladium precious metal component in a first catalytic layer and a rhodium component in a second catalytic layer and related methods of preparation and use are disclosed. Also disclosed is a catalyst article comprising a first layer formed on a carrier substrate, wherein the first layer comprises a refractory metal oxide and has a surface that is substantially uniform; a second layer formed on the first layer, wherein the second layer comprises i) an oxygen storage component that is about 50-90% by weight of the second layer and ii) a palladium component in an amount of about 2-5% by weight of the second layer, wherein the palladium component is substantially the only platinum group metal component, and a palladium-free third layer comprising a rhodium component supported on a thermostable oxygen storage component which is about 80-99% by weight of the second layer. One or more improved properties are exhibited by the catalyst article. | 05-12-2011 |
20110120102 | Fluid Container and Reductant Supply System with such a Fluid Container - A fluid container for a motor vehicle, said container having a container wall which is made out of a plastic material and is provided with at least one metal resistance heating element. According to the invention the container wall is provided with at least one PPTC element as protection against overheating, said PPTC element being connected in series with the at least one heating element. | 05-26-2011 |
20110126526 | EXHAUST PIPE STRUCTURE OF VEHICLE - An exhaust pipe structure of a vehicle having a left manifold disposed in front of an engine and a right manifold disposed behind the engine along a longitudinal direction of the vehicle, which are connected by an underbody catalytic converter, the exhaust pipe structure may include a left exhaust pipe connected to the left manifold and extending toward the rear of the engine, a right exhaust pipe having a straight portion connected to the right manifold and extending toward the front of the engine and a curved portion bending from the straight portion toward the rear of the engine, and a conjunction, one end of which is connected to and communicates with the end of the curved portion of the right exhaust pipe and the end of the left exhaust pipe and the other end of which is connected to the underbody catalytic converter. | 06-02-2011 |
20110126527 | NOX STORAGE MATERIALS AND TRAPS RESISTANT TO THERMAL AGING - Nitrogen oxide storage catalysts comprising a substrate and at least two coating layers, where the second layer is substantially free of platinum, cerium and barium, and methods of manufacturing and using these nitrogen oxide storage catalysts are disclosed. | 06-02-2011 |
20110126528 | EXHAUST GAS PURIFYING DEVICE - An exhaust gas purifying device having sufficient exhaust gas purifying performance and using a reduced amount of noble metal. An exhaust gas purifying device ( | 06-02-2011 |
20110138788 | Exhaust Gas Purifier - It is intend to provide at low cost an exhaust gas purifier capable of in an internal combustion engine or other combustion instrument mainly driven under excess air conditions, efficiently removing nitrogen oxides from exhaust gas. A nitrogen oxide adsorbent ( | 06-16-2011 |
20110146251 | EXHAUST SYSTEM FOR A VEHICLE HAVING A "STOP-START" COMPRESSION IGNITION ENGINE - A vehicle comprises a compression ignition engine provided with engine management means and having a catalyst for exhaust gas aftertreatment, wherein the engine management means is configured, when in use, to detect idle conditions and upon determining that idle conditions exist, stops the engine entirely, wherein the catalyst comprises a honeycomb substrate monolith coated with a catalytic washcoat comprising one or more precious metal, which catalytic washcoat being arranged between a first, upstream washcoat zone and a second, downstream washcoat zone, wherein a thermal mass in the first washcoat zone is different from a thermal mass in the second washcoat zone and wherein a washcoat layer in the first, upstream washcoat zone is substantially contiguous with a washcoat layer in the second, downstream washcoat zone. | 06-23-2011 |
20110162353 | MIXING DEVICE IN AN EXHAUST GAS PIPE - In an exhaust gas pipe, a first fluid flows in a flow direction in the pipe, and a second fluid is injected inside the pipe by a nozzle, from an injection inlet arranged in the pipe wall, according to an injection direction. A mixing device fastened inside the pipe upstream from the injection inlet creates turbulence that helps the mixing of the fluids. The mixing device has a first portion located on the injection inlet side of the pipe and a second portion located opposite the injection inlet side of the pipe, the portions being designed so that the fluid velocity is higher downstream from the mixing device second portion than downstream from the mixing device first portion. An aqueous solution of urea can be injected inside an exhaust pipe of a diesel engine. | 07-07-2011 |
20110179778 | METHOD AND APPARATUS FOR EXHAUST GAS AFTERTREATMENT FROM AN INTERNAL COMBUSTION ENGINE - An apparatus has an internal combustion engine configured to operate at a lean air/fuel ratio and includes an exhaust aftertreatment system including an oxygen separator fluidly connected upstream of a three-way catalytic converter. | 07-28-2011 |
20110179779 | EMISSIONS TREATMENT IN GENSET ENGINES THROUGH AIR INJECTION INTO THE EXHAUST SYSTEM OF A GENSET - An exhaust system that can improve emissions treatment by reducing certain emissions species. The exhaust system draws air into the exhaust system from an air source, when exhaust pressure decreases to a threshold so that air can enter the exhaust system. The exhaust system is in a genset engine. The air source is a pressurized air source, such as an existing fan of the genset engine. A portion of the air generated by the air source is pulled off so that it flows directly toward the exhaust system, using a one-way valve and conduit that fluidly connects the air source to the exhaust system. | 07-28-2011 |
20110203263 | GASEOUS FUELED TWO-STROKE ENGINE - An engine according to various embodiments generates reduced emissions. | 08-25-2011 |
20110203264 | DIESEL EXHAUST GAS PURIFICATION CATALYST AND DIESEL EXHAUST GAS PURIFICATION SYSTEM - A diesel exhaust gas purification catalyst contains a substrate, and a catalyst layer formed on the substrate. The catalyst layer contains a carrier, a noble metal and/or an oxide thereof supported by the carrier, and a composite oxide of cerium and one or more Group III and/or Group IV elements. The diesel exhaust gas purification catalyst when in use is disposed on an upstream side of an exhaust gas stream with respect to a denitration catalyst. | 08-25-2011 |
20110209465 | Liquid additive reservoir for selective catalytic reduction system - A liquid additive reservoir including a rigid casing delimiting a housing, and a fluid-tight flexible pouch mounted inside the housing of the casing and intended to contain the liquid additive, the flexible pouch being designed to be connected to the exhaust line of an internal combustion engine of a vehicle. | 09-01-2011 |
20110247320 | DEVICE FOR REDUCING CORROSIVE CONSTITUENTS IN AN EXHAUST GAS CONDENSATE OF AN INTERNAL COMBUSTION ENGINE - A device for reducing corrosive constituents in an exhaust gas condensate of an internal combustion engine is provided, in which the exhaust gas of the internal combustion engine is recirculated to the internal combustion engine via an exhaust gas recirculation system having an exhaust gas cooler and at least one exhaust gas recirculation line. To protect the exhaust gas recirculation system along with intake air components and the internal combustion engine from the corrosive effects of the exhaust gas condensate, the exhaust gas recirculation system has at least one neutralization unit for neutralizing the corrosive constituents of the exhaust gas condensate, which is connected to at least one component arranged downstream, through which the exhaust gas, which has been freed of nearly all corrosive constituents, flows. | 10-13-2011 |
20110265463 | AMMONIA BURNING INTERNAL COMBUSTION ENGINE - An internal combustion engine in which ammonia which is fed into a combustion chamber is ignited by an ignition device which is arranged in the combustion chamber. As this ignition device, at least one plasma jet ignition plug which emits a plasma jet or a plurality of spark plugs which generate sparks are used. | 11-03-2011 |
20110265464 | AMMONIA BURNING INTERNAL COMBUSTION ENGINE - Inside an engine compartment of a vehicle, an ammonia concentration sensor is arranged above a liquid ammonia injector which is attached to an internal combustion engine body and to the rear in a direction of progression of the vehicle. An ammonia concentration which is detected by the ammonia concentration sensor is used as the basis to judge if ammonia is leaked. | 11-03-2011 |
20110283687 | EXHAUST SYSTEMS FOR VEHICLES - An exhaust system for a vehicle having a cab ( | 11-24-2011 |
20110296819 | MULTIPLE-SHELL SILENCER / REAR SHELL PORT - An exhaust system for an internal combustion engine includes an outer housing having a front shell and a rear shell, a prechamber in which exhaust gas from the combustion chamber enters, and an intermediate shell having a front and back as well as a catalytic converter holder. A catalytic converter element is arranged on the catalytic converter holder where an exhaust port directs exhaust gas from the catalytic converter element. To place the center of gravity of the exhaust system near the internal combustion engine or cylinder, the intermediate shell forms the prechamber and the exhaust port. | 12-08-2011 |
20110302910 | Annular Heat Exchanger - An annular heat exchanger for cooling hot gases comprises an inner shell, an intermediate shell and an outer shell. Where the heat exchanger is integrated with a catalytic converter for treatment of hot exhaust gases in a motor vehicle, the inner shell contains a catalyst for treatment of the exhaust gases. Inner and outer gas flow passages are provided between the shells, and a coolant flow passage is provided, either on the outer surface of the outer shell, or inbetween the intermediate and outer shells. The exhaust gases change direction twice as they pass through the heat exchanger, and the annular structure of the heat exchanger provides a large surface area, and a large flow section, relative to volume, and thereby provides effective heat exchange without significantly increasing space requirements. | 12-15-2011 |
20120023915 | NOx Storage Materials and Traps Resistant to Thermal Aging - Nitrogen oxide storage materials and methods of manufacturing nitrogen oxide storage materials are disclosed. The nitrogen oxide storage materials can be used to manufacture catalytic trap disposed in an exhaust passage of an internal combustion engine which is operated periodically between lean and stoichiometric or rich conditions, for abatement of NOx in an exhaust gas stream which is generated by the engine. In one embodiment, the nitrogen oxide storage material comprises alkaline earth material supported on ceria particles having a crystallite size of between about 10 and 20 nm and the alkaline earth oxide having a crystallite size of between about 20-40 nm. | 02-02-2012 |
20120031084 | TANK ASSEMBLY AND METHOD - A tank assembly includes a tank defining a chamber that is configured to store a selectively variable volume of liquid. A positive temperature coefficient heater is disposed within the chamber. A source of electrical energy is in selective electrical communication with the heater and is configured to transfer electrical current to the heater. A controller is operatively connected to the heater and is configured to monitor the amount of electrical current to the heater. The controller is programmed to determine the volume of liquid in the chamber based on the amount of current transferred to the heater. | 02-09-2012 |
20120031085 | EXHAUST GAS PURIFYING CATALYST - An exhaust gas purifying catalyst includes two catalyst layers containing a fire resistant inorganic compound carrying a catalyst component in an exhaust gas passage of a base material provided with the exhaust gas passage penetrating through the base material from the exhaust gas introduction port side to discharge port side, wherein each catalyst layer is formed by supporting the catalyst component on a different fire resistant inorganic compound, a catalyst layer extended from the exhaust gas introduction port side to the exhaust gas discharge port side and a catalyst layer extended from the exhaust gas discharge port side to the exhaust gas introduction port side are formed such that the catalyst layers are overlapped on each other and the exhaust gas introduction port side is coated only with one of the catalyst layers and the exhaust gas discharge port side is coated only with the other. | 02-09-2012 |
20120055140 | EXHAUST TREATMENT SYSTEM AND METHOD OF ASSEMBLY - An exhaust treatment system for an internal combustion engine comprises an insulating and cushioning mat material disposed in the exhaust treatment system and a film laminate sleeve vacuum packed and sealing the insulating and cushioning mat material therein. | 03-08-2012 |
20120073273 | EXHAUST PURIFICATION SYSTEM OF INTERNAL COMBUSTION ENGINE - An exhaust purification system of an internal combustion engine including an ammonia oxidation catalyst device and an ammonia holding device arranged immediately upstream of the ammonia oxidation catalyst device is provided. The ammonia holding device has a solid acid, holds ammonia to restrain the ammonia from flowing into the ammonia oxidation catalyst device when a temperature of the ammonia oxidation catalyst device is within a N | 03-29-2012 |
20120073274 | INTERNAL COMBUSTION ENGINE - Internal combustion engine according to the invention comprises an exhaust treatment apparatus provided in an exhaust passage, a burner apparatus provided upstream of the exhaust treatment apparatus for increasing exhaust temperature, and a variable mechanism for varying valve timing of an exhaust valve. The variable mechanism is controlled in such a manner that, when a flow amount of exhaust gas passing through the burner apparatus is equal to or more than a predetermined value, the exhaust valve opens in the middle of piston descending during an expansion stroke. When the exhaust valve is opened at this timing, high-temperature exhaust or combustion gas existing in combustion chamber at this time is sent to the burner apparatus, making it possible to increase atmosphere gas temperature of the burner apparatus. Therefore, even when flow amount of exhaust gas is increased to the predetermined value or more, sufficient ignition performance can be ensured. | 03-29-2012 |
20120079817 | Surface-Coated Zeolite Materials For Diesel Oxidation Applications - A diesel oxidation catalyst for the treatment of exhaust gas emissions, such as the oxidation of unburned hydrocarbons (HC) and carbon monoxide (CO) is described. Also described is a novel washcoat composition including a surface-coated zeolite coated with at least one of zirconia and alumina, and a platinum group metal supported on a high surface area alumina. | 04-05-2012 |
20120102930 | SYSTEM FOR DESULFURIZING OXIDATION CATALYST AND METHOD THEREOF - A system and method for desulfurizing an oxidation catalyst enhances fuel economy and reduces noxious exhaust gas emission as a consequence of increasing desulfurization period of the oxidation catalyst or shortening desulfurization time by reflecting desulfurization history consisting of natural desulfurization occurrence. The method may include detecting an inlet temperature of the oxidation catalyst, estimating natural desulfurization according to the inlet temperature of the oxidation catalyst, and resetting desulfurization time or desulfurization period by reflecting the estimated natural desulfurization. | 05-03-2012 |
20120110987 | EXHAUST PURIFICATION SYSTEM OF INTERNAL COMBUSTION ENGINE - An internal combustion engine in which an SO | 05-10-2012 |
20120110988 | NOx ABSORBER CATALYSTS | 05-10-2012 |
20120117953 | THREE WAY CATALYST COMPRISING EXTRUDED SOLID BODY - A three way catalyst comprises an extruded solid body comprising: 10-100% by weight of at least one binder/matrix component; 5-90% by weight of a zeolitic molecular sieve, a non-zeolitic molecular sieve or a mixture of any two or more thereof; and 0-80% by weight optionally stabilised ceria, which catalyst comprising at least one precious metal and optionally at least one non-precious metal, wherein: (i) the at least one precious metal is carried in one or more coating layer(s) on a surface of the extruded solid body; (ii) at least one metal is present throughout the extruded solid body and at least one precious metal is also carried in one or more coating layer(s) on a surface of the extruded solid body; or (iii) at least one metal is present throughout the extruded solid body, is present in a higher concentration at a surface of the extruded solid body and at least one precious metal is also carried in one or more coating layer(s) on the surface of the extruded solid body. | 05-17-2012 |
20120124976 | APPARATUS FOR REMOVING MIXED NITROGEN OXIDES, CARBON MONOXIDE, HYDROCARBONS AND DIESEL PARTICULATE MATTER FROM DIESEL ENGINE EXHAUST STREAMS AT TEMPERATURES AT OR BELOW 280 DEGREES C - Disclosed is a catalytic unit that removes contaminates and particulates, including nitrogen oxides and soot, from diesel engine emissions without the use of chemical agents. The disclosed apparatus comprises a flow through device in fluid communication with a reduction unit, which is in fluid communication with a diesel particulate filter. The flow through device is coated with hematite and bixbyite in a ratio ranging from 1:1 to 9:1. The reduction unit is a catalytic substrate comprising one or more transition metals supported on a molecular sieve coated with an oxide catalyst. The diesel particulate filter has an oxide coating and a noble metal coating. The flow through device converts nitric oxide into nitrogen dioxide. The reduction unit converts most of the nitrogen dioxide into nitrogen, water, carbon monoxide and carbon dioxide. The diesel particulate filter traps remaining soot and coverts it and the carbon monoxide into carbon dioxide. | 05-24-2012 |
20120131911 | EXHAUST GAS PURIFYING CATALYST AND METHOD FOR MANUFACTURING THE SAME - An exhaust gas purifying catalyst ( | 05-31-2012 |
20120137664 | VEHICLE ELECTROCATALYZER FOR RECYCLING CARBON DIOXIDE TO FUEL HYDROCARBONS - The vehicle electrocatalyzer for recycling carbon dioxide to fuel hydrocarbons includes a main tubular member having a plurality of tubular catalytic cells, electrically connected in series disposed inside and separated from one another by semipermeable membranes allowing the passage of fluids, but not solids. The electrocatalyzer can be attached in the exhaust system where hydrogen could be generated by the electrolysis of water. Metallic copper, iron, carbonaceous materials (such as activated carbon, carbon nanomaterials, or graphite), metal oxides, or metal-supported catalysts may be used in each catalytic cell. A DC current connected across the cells is used to initiate reaction of the carbon dioxide with hydrogen gas. The resulting hydrocarbons are recycled back to the vehicle engine and used as a makeup fuel. | 06-07-2012 |
20120137665 | Vehicle component - The present invention relates to a component ( | 06-07-2012 |
20120144811 | EXHAUST TREATMENT DEVICE FOR A DIESEL ENGINE - Provided is an exhaust-treatment device for a diesel engine, said device being capable of suppressing engine noise. In a first stage P | 06-14-2012 |
20120180464 | Three Way Conversion Catalyst With Alumina-Free Rhodium Layer - Provided are exhaust systems and components suitable for use in conjunction with gasoline engines to treat gaseous emissions such as hydrocarbons, nitrogen oxides, and carbon monoxides. Layered three-way conversion (TWC) catalysts comprise an outer layer whose rhodium is supported by an oxygen storage component, such as a ceria-zirconia composite, and the outer layer is substantially free from alumina as a support. The rhodium-containing layer can be free of all other precious metals, such as platinum and palladium. A lower palladium layer is provided where the palladium is supported by a refractory metal oxide. The lower palladium layer can be free of rhodium and platinum and can contain an oxygen storage component that is the same or different from that in the rhodium-containing layer. Methods of making and using these catalysts are also provided. | 07-19-2012 |
20120186238 | EXHAUST-GAS PURIFICATION CATALYTIC SYSTEM - An upper catalyst layer of an upstream catalyst | 07-26-2012 |
20120192550 | EXHAUST GAS PURIFICATION CATALYST FOR REMOVING CO OR HC, AND METHOD FOR MANUFACTURING SAME - An exhaust gas purification catalyst for removing CO or HC, which contains a carrier and an alloy of palladium and silver supported on this carrier. | 08-02-2012 |
20120210702 | CATALYTIC CONVERTER DEVICE - The invention relates to a catalytic converter device for an internal combustion engine that produces exhaust gas, comprising a catalytic converter body ( | 08-23-2012 |
20120216515 | DEVICE, METHOD, AND SYSTEM FOR EXHAUST GAS TREATMENT - Various methods and systems are provided for an exhaust gas treatment device for an exhaust gas treatment system. In one example, the exhaust gas treatment device includes a primary flow passage through which exhaust gas flows to the exhaust gas treatment device, a first sub-catalyst partially disposed in the primary flow passage splitting the exhaust gas into a first gas flow and a bypass flow, and a second sub-catalyst disposed downstream of the first sub-catalyst in the bypass flow forming a second gas flow, where the second gas flow is different from the first gas flow. | 08-30-2012 |
20120216516 | EXHAUST PURIFICATION SYSTEM OF INTERNAL COMBUSTION ENGINE - An internal combustion engine in which an SOx trap catalyst for trapping SOx contained in the exhaust gas is comprised of an upstream side catalyst and a downstream side catalyst into which the exhaust gas flowing out from the upstream side catalyst flows. The SOx storing material of the upstream side catalyst is mainly comprised of an alkali earth metal, while the SOx storing material of the downstream side catalyst is mainly comprised of an alkali metal. | 08-30-2012 |
20120227387 | EXHAUST EMISSION CONTROL SYSTEM FOR ENGINE - An exhaust emission control system for an engine that provides both early activation of a catalyst during cold-engine, low-load operation of the engine and protection of the catalyst during hot-engine, high-load operation of the engine. The exhaust emission control system includes a catalyst provided in an intermediate portion of an exhaust pipe; an exhaust valve provided in an upstream-side exhaust passage of the exhaust pipe between the catalyst and the engine; and an auxiliary exhaust passage, which is smaller in passage cross-sectional area than the upstream-side exhaust passage and is connected to the upstream-side exhaust passage so as to bypass the exhaust valve. The auxiliary exhaust passage has an inlet connected in the vicinity of an exhaust port of the engine and an outlet connected to the vicinity of the catalyst. | 09-13-2012 |
20120240562 | Exhaust Treatment Device for an Internal Combustion Engine - An internal combustion engine has an exhaust gas treatment system comprises a multiple piece canister having a first canister portion and a second canister portion, a conical portion extending axially from an end of the first canister portion including a wall that is inclined inwardly, towards a central axis of the multiple piece canister, a funnel portion extending axially from an end of the second canister portion including a wall that is inclined outwardly, away from the central axis of the multiple piece canister, the wall of the conical portion and the wall of the funnel portion defining an insulation gap therebetween and an annular band of insulating and cushioning mat material disposed under compression by the walls within the insulation gap. | 09-27-2012 |
20120291424 | DIAGNOSTIC APPARATUS FOR CATALYST IN FUEL-PROPERTY REFORMING SYSTEM - A diagnostic apparatus for a catalyst in a fuel-property reforming system includes an inlet-side temperature sensor disposed upstream of the fuel-reforming catalyst and an outlet-side temperature sensor disposed downstream of the fuel-reforming catalyst. In a reforming driving mode, while the EGR valve is opened to recirculate a part of exhaust gas into the intake pipe, a reforming-fuel injector injects a reforming fuel into the EGR gas. A fuel-reforming catalyst reforms the fuel into a fuel having high-combustibility. A differential temperature between a temperature detected by the inlet-side temperature sensor and a temperature detected by the outlet-side temperature sensor is compared with a deterioration-determination threshold, whereby a computer determines whether the fuel-reforming catalyst is deteriorated. | 11-22-2012 |
20120312001 | LOW PRESSURE EGR SYSTEM AND EXAMINING METHOD FOR EFFICIENCY OF LOW EGR COOLER - A low pressure exhaust gas recirculation (EGR) cooler efficiency diagnosis method for an EGR system includes measuring speed and load of an engine, setting a difference threshold between model temperature and detected temperature downstream of the low pressure EGR cooler according to speed and load of the engine, measuring a pressure difference between upstream and downstream sides of the EGR valve, calculating a mass flow rate of an exhaust gas passing through the low pressure EGR cooler based on the measured pressure difference, calculating the efficiency of the low pressure EGR cooler based on the calculated mass flow rate, calculating the model temperature downstream of the low pressure EGR cooler based on the calculated efficiency, and comparing the model temperature downstream of the low pressure EGR cooler with the detected temperature downstream of the low pressure EGR cooler. A low pressure EGR system is also disclosed. | 12-13-2012 |
20120317963 | REDUCING AGENT INJECTION NOZZLE AND NITROGEN OXIDE PURIFICATION SYSTEM WITH REDUCING AGENT INJECTION NOZZLE - A reducing agent injection nozzle includes a nozzle body, the lower end portion of the nozzle body is provided with flat opening surfaces which are inclined so as to face different directions, the opening surfaces of the lower end portion of the nozzle body are each provided with a pair of injection apertures which are opened to the opening surfaces, and the pair of injection apertures are formed so that aqueous urea solutions respectively injected from the injection apertures collide with each other. | 12-20-2012 |
20130000284 | EXHAUST PURIFICATION SYSTEM OF INTERNAL COMBUSTION ENGINE - Inside of an engine exhaust passage, a hydrocarbon feed valve ( | 01-03-2013 |
20130061581 | AIR-FUEL RATIO CONTROL SYSTEM FOR INTERNAL COMBUSTION ENGINE - An oscillation signal is generated to oscillate the air-fuel ratio with a set frequency which is different from a 0.5th-order frequency (half of the frequency corresponding to a rotational speed of the engine). Air-fuel ratio perturbation control is performed to oscillate the air-fuel ratio according to the oscillation signal. An intensity of the 0.5th-order frequency component and the set frequency component contained in the detected air-fuel ratio signal are calculated. A determination parameter applied to determining an imbalance degree of air-fuel ratios corresponding to the plurality of cylinders is calculated according to the two intensities and determines an imbalance failure that the imbalance degree of the air-fuel ratios exceeds an acceptable limit. A predicted imbalance value, indicative of a predicted value of the imbalance degree, is calculated, and an amplitude of the oscillation signal is set according to the predicted imbalance value. | 03-14-2013 |
20130098007 | Combination Liquid-Cooled Exhaust Manifold Assembly and Catalytic Converter Assembly For A Marine Engine - An exhaust system for a in e engine comprising liquid-cooled manifold and catalytic converter assemblies. Each assembly uses a separate cooling system to cool either the exhaust manifold or a shell inside which resides the catalytic converter. The housing or shell containing the catalytic converter uses water to cool an exterior surface of a water jacket to an acceptable temperature conforming to federal regulations. The liquid-cooled manifold assembly may use either water or glycol to cool outer cooling tubes surrounding exhaust tubes extending from the engine block to the catalytic converter assembly. | 04-25-2013 |
20130199164 | HEAT SYSTEM FOR AN ENGINE - An exhaust system for an engine is disclosed herein. The exhaust system includes a catalytic converter, a heat collector downstream from the catalytic converter, and a heat transfer system receiving waste exhaust heat via a thermosyphon evaporator for storage and/or use in a cabin heating system. In this way, waste heat is utilized to provide better cabin heating, particularly at engine cold start. | 08-08-2013 |
20130213018 | COATED SUBSTRATES FOR USE IN CATALYSIS AND CATALYTIC CONVERTERS AND METHODS OF COATING SUBSTRATES WITH WASHCOAT COMPOSITIONS - Disclosed are, inter alia, methods of forming coated substrates for use in catalytic converters, as well as washcoat compositions and methods suitable for using in preparation of the coated substrates, and the coated substrates formed thereby. The catalytic material is prepared by a plasma-based method, yielding catalytic material with a lower tendency to migrate on support at high temperatures, and thus less prone to catalyst aging after prolonged use. Also disclosed are catalytic converters using the coated substrates, which have favorable properties as compared to catalytic converters using catalysts deposited on substrates using solution chemistry. Also disclosed are exhaust treatment systems, and vehicles, such as diesel vehicles, particularly light-duty diesel vehicles, using catalytic converters and exhaust treatment systems using the coated substrates. | 08-22-2013 |
20130213019 | EXHAUST GAS TREATMENT UNIT FOR AN EXHAUST GAS RECIRCULATION LINE AND INTERNAL COMBUSTION ENGINE AND MOTOR VEHICLE HAVING AN EXHAUST-GAS TREATMENT UNIT - An exhaust gas treatment unit includes a substantially cylindrical exhaust gas treatment body having a main axis and, on at least one opening side of the exhaust gas treatment unit, at least one of the following connecting devices or connectors: an offset compression zone or a molded structure for form-locking engagement. An internal combustion engine includes at least one exhaust gas treatment unit and at least one exhaust gas conducting line. The at least one exhaust gas treatment unit is completely introduced in the at least one exhaust gas conducting line. A motor vehicle having at least one exhaust-gas treatment unit is also provided. | 08-22-2013 |
20130239555 | Catalyst for Use in a Process for Purifying Exhaust Gas from Gasoline Engines of a Fuel-direct-injection Type - A catalyst for use in a process for purifying exhaust gas from a gasoline engine of the fuel-direct-injection type that varies, in response to changes in the air-fuel ratio, between a first exhaust-gas state featured by an air-fuel ratio in the vicinity of the stoichiometrical air-fuel ratio, and a second exhaust-gas state that forms a more oxidizing, low-temperature atmosphere and that is featured by an air-fuel ratio greater than the stoichiometrical air-fuel ratio, the catalyst being obtained by causing a noble metal and a rare-earth oxide and/or a transition metal to be carried by or to be mixed with a fire-resistant inorganic oxide. | 09-19-2013 |
20130239556 | PRODUCTION METHOD FOR EXHAUST GAS-PURIFYING CATALYST AND MOTOR VEHICLE - A method for producing an exhaust gas purifying catalyst according to the present invention includes step (a) of preparing a metal oxide support containing zirconium; step (b) of preparing a solution containing rhodium; and step (c) of adding the metal oxide support prepared in the step (a), and ammonium carbonate, ammonium hydrogencarbonate or ammonia water, to the solution prepared in the step (b) to obtain the solution having a pH adjusted to a range of 3.0 or higher and 7.5 or lower. The present invention provides a method capable of producing an exhaust gas purifying catalyst including a metal oxide support containing zirconium and rhodium of a minute particle size which is supported on the metal oxide support at a high degree of dispersion. | 09-19-2013 |
20130255237 | EXHAUST SYSTEM FOR VARIABLE CYLINDER ENGINE - An exhaust system for a variable cylinder engine for assuring purification of exhaust gas without increasing the number of catalysts and an intake system for purifying blow-by gas. The exhaust system includes an activation side exhaust pipe connected to an activation cylinder group that operates normally. A deactivation side exhaust pipe is connected to a deactivation cylinder group wherein fuel supply is stopped under a particular condition. A gathering section is connected to downstream ends of the activation side exhaust pipe and the deactivation side exhaust pipe with a sub-catalyst disposed in the activation side exhaust pipe and a main catalyst disposed at the gathering section. The main catalyst is formed wherein gas passing therethrough is partitioned into flows independent of each other in a flow path direction. The activation side exhaust pipe and the deactivation side exhaust pipe are connected in a mutually independent state to the main catalyst. | 10-03-2013 |
20130255238 | CATALYST CONVERTER DEVICE FOR PURIFYING EXHAUST GAS AND SADDLE-RIDE TYPE VEHICLE - A catalyst converter having a retaining mat with a thickness wherein the apparent density during assembling becomes 0.25 g/cm | 10-03-2013 |
20130305697 | MOUNTING MEMBER FOR POLLUTION CONTROL ELEMENT, MANUFACTURING METHOD THEREOF, AND POLLUTION CONTROL DEVICE - A mounting member that can sufficiently suppress scattering of inorganic fiber material when a pollution control element is assembled in a casing, and that can maintain sufficiently high contact pressure between the inner surface of the casing and the pollution control element, even after the organic binder has combusted. The mounting member of the present invention is for wrapping and mounting a pollution control element ( | 11-21-2013 |
20130312393 | ELECTRIC HEATING CATALYST - An object of the invention is to enhance the exhaust gas purification rate and to reduce the possibility of breakage of a heater element in an electric heating catalyst (EHC) by generating heat by the heater element in a improved manner. A pair of electrodes including surface electrodes | 11-28-2013 |
20130333362 | CATALYST COMPOSITION - A catalyst composition comprises a mixed metal catalyst which comprises unalloyed palladium and palladium-gold alloy disposed on a support, wherein the palladium-gold alloy is enriched in gold and at least one promoter in which said promoter comprises at least one reducible metal oxide. | 12-19-2013 |
20130340414 | OXIDATION CATALYST FOR A LEAN BURN INTERNAL COMBUSTION ENGINE - An apparatus is disclosed. The apparatus comprises a lean-burn internal combustion engine, engine management means and an exhaust system for treating exhaust gas of the engine. The exhaust system comprises a first oxidation catalyst disposed on a first honeycomb monolith substrate. The first oxidation catalyst comprises platinum supported on a first metal oxide support comprising at least one reducible oxide, and is substantially free of alkali metals and alkaline earth metals. The engine management means is arranged, when in use, intermittently to modulate the lambda composition of the exhaust gas entering the first oxidation catalyst to a rich lambda composition. | 12-26-2013 |
20140047821 | UREA SOLUTION REFORMER AND EXHAUST GAS PURIFIER USING SAME - Disclosed is a urea solution reformer and an exhaust gas purifier using the same, configured to heat a carrier gas supplied from a carrier gas source by a carrier gas heating unit ( | 02-20-2014 |
20140102083 | EXHAUST GAS SYSTEM WITH HC ADSORBER AND PARALLEL CATALYTIC CONVERTER, AND VEHICLE COMPRISING SUCH AN EXHAUST GAS SYSTEM - The invention relates to an exhaust gas system ( | 04-17-2014 |
20140109556 | HYBRID VEHICLE - A hybrid vehicle equipped with an internal combustion engine and a motor-generator for running the vehicle, includes: a power storage device to be supplied to the motor-generator; a current leakage detection circuit detecting a decrease in insulation resistance, the current leakage detection circuit being electrically connected to a negative electrode of the power storage device; an electrical heated catalyst device; and a power supply device that converts electric power from the power storage device into energization power of the electrical heated catalyst device by a power conversion path passing through an insulating mechanism. The power supply device includes a switching device. The switching device is opened when the electrical heated catalyst device is energized, and is closed when the decrease in insulation resistance of the electrical heated catalyst device is detected. | 04-24-2014 |
20140150413 | TROUGH FILTER WITH INTEGRATED THERMOELECTRIC GENERATOR, VEHICLE INCLUDING TROUGH FILTER, AND METHOD OF TREATING EXHAUST GAS - A trough filter integrated with a thermoelectric generator includes annular filter modules having a support structure at its inner circumference, a filter element, and a support structure at its outer circumference. The filter elements may be configured to form troughs. An annular exhaust gas outlet channel or gas inlet channel may be formed between filter modules. The thermoelectric generator may be positioned in the exhaust gas outlet or inlet channel. A vehicle includes the trough filter integrated with a thermoelectric generator downstream from an internal combustion engine. A method of treating exhaust gas uses a trough filter with an integrated thermoelectric generator. | 06-05-2014 |
20140157763 | 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:
| 06-12-2014 |
20140165540 | AFTERTREATMENT SYSTEM INCORPORATING HYDROLYSIS CATALYST WITH PARTICULATE FILTRATION AND SCR - An aftertreatment system is disclosed. The aftertreatment system can include a hydrolysis catalyst disposed within a first canister adjacent to a downstream end of the first canister and a nozzle positioned to inject reductant into the first canister upstream of the hydrolysis catalyst. A particulate collection device, which may be catalyzed to promote NO | 06-19-2014 |
20140174060 | System and Method for Accommodating Aftertreatment Bricks - One or more aftertreatment bricks are axially inserted through an opening in the first end of a tubular sleeve of an aftertreatment system. The aftertreatment brick includes a substrate matrix and a mantle disposed around the substrate matrix. The mantle further includes a lip arranged to extend through the opening of the sleeve. One or more channel pockets are secured proximate to the opening of the sleeve and oriented radially outward with respect to the sleeve axis. To retain the aftertreatment brick in the sleeve, a clamping assembly is used that includes a hook, a fastener, and a capture nut. The capture nut is installed and accommodated in the channel pockets. The hook engages the protruding lip of the aftertreatment brick and the fastener secures the hook to the capture nut received in the channel pocket. | 06-26-2014 |
20140174061 | EXHAUST TREATMENT APPARATUS FOR ENGINE - An exhaust treatment apparatus for an engine including a combustible gas supplying passage; a heat releasing port opened in an upstream side in the exhaust passage from the oxidation catalyst and in a downstream side in the combustible gas supplying passage, the exhaust passage and the combustible gas supplying passage communicating with each other through the heat releasing port; an ignition apparatus beneath the heat releasing port, the heat of flaming combustion of combustible gas ignited by the ignition apparatus being supplied to the exhaust passage to raise the temperature of exhaust in the exhaust passage; a flame holding plate in a downstream side in the combustible gas supplying passage from the ignition apparatus, an exhaust guiding plate at the top portion of the flame holding plate, the exhaust guiding plate having an upward slope toward a downstream side in the exhaust passage. | 06-26-2014 |
20140182275 | APPARATUS AND CATALYST CAN FOR EXHAUST GAS OF VEHICLE - A catalyst can of exhaust gas can include a catalyst embedded substantially in the center of an inner space of the catalyst can, and an inflow space and a discharge space partitioned in an upper part and a lower part of the catalyst can, respectively. The catalyst can also includes an inflow-side partition vertically cutting and dividing the inflow space into a plurality of partial inflow spaces, and an inlet formed for each partial inflow space. | 07-03-2014 |
20140196445 | HYBRID VEHICLE CONTROL DEVICE AND HYBRID VEHICLE - In controlling a hybrid vehicle, an internal combustion engine and an electric motor are controlled such that, when a power request is received while traveling with an operation of the internal combustion engine stopped and a requested power required for traveling is higher than a predetermined power, the operation of the internal combustion engine is started with an intake air volume based on the requested power and the hybrid vehicle travels with the requested power. When the power request is received for the first time after ignition-on, the start control for controlling the internal combustion engine is performed such that the operation of the internal combustion engine is started with an intake air volume lower than that based on the requested power. The hybrid vehicle includes a controller that performs the above control, an internal combustion engine, an electric motor, a battery, and a purification device. | 07-17-2014 |
20140202140 | PRE-TURBOCHARGER CATALYST - Embodiments of a pre-turbo catalyst positioned within a turbine in a turbocharger of an engine are disclosed. In one example approach, a turbocharger for an engine comprises a turbine and a catalyst substrate mounted directly within the turbine. | 07-24-2014 |
20140216018 | INTERNAL COMBUSTION ENGINE HAVING AT LEAST ONE CATALYST UNIT - An internal combustion engine having at least one catalytic converter unit for cleaning the exhaust gases produced during the operation of the internal combustion engine. The internal combustion engine includes at least one catalytic converter body which is arranged upstream of an exhaust gas heat exchanger in an exhaust gas flow path, especially an exhaust gas recirculation line. | 08-07-2014 |
20140237997 | V-TYPE ENGINE, OUTBOARD MOTOR, AND VESSEL - A V-type engine includes two exhaust manifolds connected to two cylinder banks. First and second exhaust ports, respectively provided in the two cylinder banks, are disposed at an inner side of V-shaped lines. Each exhaust manifold includes N branch pipes and a collecting pipe, where N is an integer not less than 2. The N branch pipes are respectively connected to N exhaust ports including at least one of the first exhaust ports and at least one of the second exhaust ports. The collecting pipe is disposed adjacent to N cylinders that are aligned in a direction parallel or substantially parallel to a crank axis direction and extends from one end to the other end of the N cylinders. | 08-28-2014 |
20140245725 | Coherent-Structure Fuel Treatment Systems and Methods - Fuel efficiency in a combustion engine is increased by treating the fuel in a reaction chamber prior to delivering the fuel into the combustion chamber of the engine. The method includes the step of entraining a stream of exhaust gas to travel upstream through the reactor chamber in a first flow pattern. The method also includes the step of entraining a stream of fuel to travel downstream through the reactor chamber in a second flow pattern, where at least one of the first and second flow patterns comprises a structured turbulent flow. | 09-04-2014 |
20140250871 | EXHAUST GAS PURIFICATION DEVICE FOR GENERAL-PURPOSE ENGINE - An exhaust gas purification device for a general-purpose engine includes a crankcase and a cylinder block provided continuously on an upper portion of the crankcase and inclined to one lateral side of the crankcase. A catalytic converter is provided in an exhaust muffler of the engine. A downstream end of a secondary air introduction pipe is connected to an exhaust pipe upstream of the muffler. A dedicated air filter is connected through a one-way valve to an upstream side of the secondary air introduction pipe. The filter is disposed between the crankcase and a lower surface of the cylinder block. The secondary air introduction pipe is arranged so as to meander on one side of the cylinder block. Accordingly, the device can be employed without increasing an outer size of the engine, and can also securely introduce secondary air into an exhaust system, thereby enhancing an exhaust gas purifying effect. | 09-11-2014 |
20140250872 | EXHAUST GAS PURIFYING CATALYST AND METHOD FOR PRODUCING SAME - An exhaust gas purifying catalyst comprises: a plurality of catalyst units which contain anchor particles that support noble metal particles; and an enclosure material that internally contains the plurality of catalyst units and separates the catalyst units from each other. Both the anchor particles and the enclosure material contain an alkali element and/or an alkaline earth element. Due to this configuration, this exhaust gas purifying catalyst is capable of maintaining the exhaust gas purification performance by suppressing agglomeration of the noble metal particles even in cases where the ambient temperature is high. | 09-11-2014 |
20140260213 | Aftertreatment System For Simultaneous Emissions Control In Stationary Rich Burn Engines - A catalyst system may include a three-way catalyst that may receive exhaust gases from an engine and convert the exhaust gases to first converted exhaust gases. An ammonia slip catalyst may receive the first converted exhaust gases and convert the first converted exhaust gases to second converted exhaust gases. A hydrocarbon oxidation catalyst may receive the second converted exhaust gases and convert the second converted exhaust gases to third converted exhaust gases. | 09-18-2014 |
20140260214 | NOx Storage Catalyst with lmproved Hydrothermal Stability and NOx Conversion | 09-18-2014 |
20140260215 | EFFICIENCY AND EMISSIONS IMPROVEMENTS FOR NATURAL GAS CONVERSIONS OF EMD 2-CYCLE MEDIUM SPEED ENGINES - A single substrate oxidation catalyst system including: a turbocharger adapter exhaust collector segment having a first end and a second end; a debris screen housing in fluid communication with the second end of the turbocharger adapter exhaust collector segment; and an oxidation catalyst substrate located in the in the second end of the turbocharger adapter exhaust collector segment, wherein the oxidation catalyst substrate slides into and out of position in the second end of the turbocharger adapter exhaust collector segment. | 09-18-2014 |
20140290225 | CONTROL APPARATUS FOR HYBRID VEHICLE - A control apparatus for a hybrid vehicle includes an engine, an exhaust gas purification catalyst, a first motor-generator, an output section, a differential mechanism, a second motor-generator, and a controller. The output section is configured to transfer torque to driving wheels of the hybrid vehicle. The differential mechanism is configured to distribute the torque from the engine to the first motor-generator and the output section. The second motor-generator is connected to the output section through gears. The controller is configured to: (a) execute a temporarily changing the air-fuel ratio of the engine to a rich side as a rich spike operation when a specified condition is satisfied, and (b) set the specified condition so that the rich spike operation is easily executed as a motor torque of the second motor-generator increases. | 10-02-2014 |
20140305105 | EXHAUST PURIFICATION SYSTEM - An exhaust gas purification system provided with an NO | 10-16-2014 |
20150013315 | DELIVERY UNIT FOR A LIQUID ADDITIVE WITH A TEMPERATURE SENSOR, METHOD FOR CHECKING THE OPERATING STATE OF A DELIVERY UNIT AND MOTOR VEHICLE HAVING A DELIVERY UNIT - A delivery unit for delivering a liquid additive in a motor vehicle, includes at least one temperature sensor for contactlessly measuring a temperature at least at one measurement point in the delivery unit. The temperature sensor and the measurement point have a spacing therebetween and a radiation channel which is free from fixtures is provided between the temperature sensor and the measurement point. A method for checking the operating state of a delivery unit and a motor vehicle having a delivery unit are also provided. | 01-15-2015 |
20150033714 | HOLDING MATERIAL FOR GAS TREATMENT DEVICE, GAS TREATMENT DEVICE, AND PRODUCTION PROCESSES THEREFOR - Provided are a holding material for a gas treatment device, which is inexpensive, has a simple structure, and exhibits high holding force, a gas treatment device, and a method for manufacturing the same. A holding material for a gas treatment device according to the present invention is a holding material, which is a holding material to be arranged, in a gas treatment device including a treatment structure and a casing for housing the treatment structure, between the treatment structure and the casing, the holding material including silica fibers and an alumina sol in an amount of 3 parts by mass or more in terms of a solid content with respect to 100 parts by mass of the silica fibers. | 02-05-2015 |
20150033715 | ZONED DIESEL OXIDATION CATALYST - An oxidation catalyst is described for treating an exhaust gas from a diesel engine, which oxidation catalyst comprises: a substrate; a first washcoat region disposed on the substrate, wherein the first washcoat region comprises a first platinum group metal (PGM) and a first support material; a second washcoat region adjacent to the first washcoat region, wherein the second washcoat region comprises a second platinum group metal (PGM) and a second support material; a third washcoat region disposed on the substrate, wherein the third washcoat region comprises a third platinum group metal (PGM) and a third support material; and wherein either: (i) the third washcoat region is adjacent to the second washcoat region; or (ii) the second washcoat region is disposed or supported on the third washcoat region. Also described are uses and methods involving the oxidation catalyst. | 02-05-2015 |
20150040542 | EXHAUST GAS PURIFICATION DEVICE - An exhaust gas purification device capable of enhancing handling operability such as maintenance of an engine includes two gas purification bodies which purity exhaust gas discharged from the engine, inner cases in which the gas purification bodies are incorporated, and outer cases in which the inner cases are incorporated. The outer cases are arranged side by side in a moving direction of exhaust gas and connected to each other. One of the adjoining inner cases is inserted into the other inner case to form a double-layer structure. A loosely-fitting gap is formed between an inner side surface of the one inner case and an outer side surface of the other inner case. | 02-12-2015 |
20150089932 | INTERNAL COMBUSTION ENGINE - The phenomenon of resonance in a catalyst converter due to a flow of an exhaust gas is reduced without causing problems with vehicle layout, problems with manufacturing (higher manufacturing cost), or adverse influences on other facets of performance. An internal combustion engine includes an internal combustion engine main body having a fuel chamber formed in an interior, and a catalyst converter arranged in an exhaust flow channel of the internal combustion engine main body and provided with a catalyst for purifying the exhaust gas. The exhaust flow channel, which is upstream of the catalyst of the catalyst converter, is provided with a protuberance for disturbing the flow of the exhaust gas in the exhaust flow channel to reduce pressure pulsations of the exhaust gas. | 04-02-2015 |
20150101317 | ON-BOARD DIAGNOSTICS SYSTEM FOR CATALYZED SUBSTRATE - An on-board diagnostics system for an exhaust system of an internal combustion engine is disclosed. The system comprises a catalyzed substrate having a catalyzed region and an uncatalyzed region, a first sensor, and a second sensor. The first sensor is located within the catalyzed region of the catalyzed substrate and the second sensor is located within the uncatalyzed region of the catalyzed substrate. A method for on-board diagnostics of the catalyzed substrate is also disclosed. | 04-16-2015 |
20150135687 | EXHAUST DEVICE OF MOTORCYCLE - A motorcycle is equipped with a V-type engine in which front and rear cylinders are arranged in a V-shape along a vehicle front and rear direction. An exhaust device includes: a catalyst device disposed on an exhaust downstream side of a collection part of an exhaust pipe of the front cylinder and an exhaust pipe of the rear cylinder; and a connecting pipe via which the exhaust pipe of the front cylinder and the exhaust pipe of the rear cylinder communicate with each other, and the connecting pipe passes through a space between the exhaust pipe of the rear cylinder and the catalyst device. | 05-21-2015 |
20150306571 | CATALYST FOR ABATING A NITROGEN OXIDE, METHOD FOR PREPARING THE SAME, AND CATALYST SYSTEM FOR ABATING A NITROGEN OXIDE - A catalyst for abating a nitrogen oxide includes: a honeycomb substrate including a plurality of cell passages partitioned by a cell barrier rib; and a coating layer positioned on the internal side of the cell passages. The coating layer includes a support including Mg-substituted alumina (MgAl | 10-29-2015 |
20150330279 | EXTERNAL EXHAUST GUIDING FLOW CHAMBERS FOR MULTIPLE CATALYST ARCHITECTURE - A converter housing including a primary housing portion for housing a first converter brick, an intermediate housing portion, and a secondary housing portion for housing a second converter brick. The intermediate housing portion includes an inlet having a first axis and an outlet having a second axis that is angled with respect to the first axis. The first converter brick is disposed within the primary housing portion while the intermediate housing portion defines flow channels that communicate with a downstream end of the first converter brick along an outer surface of the primary housing portion and toward the outlet. The intermediate housing portion includes indented attachment surfaces which engage and hold the primary housing portion. | 11-19-2015 |
20150345362 | Poka-Yoke Mounting System For An Exhaust Treatment Device - An exhaust treatment system includes first and second exhaust conduits positioned on opposite ends of an exhaust treatment device. The exhaust treatment device includes a housing having a first outer diameter at a first end and a different second outer diameter at a second end. A clamp includes an inner surface engaging both the first exhaust conduit and the exhaust treatment device when the exhaust treatment device is positioned with its first end adjacent to the first exhaust conduit. The inner surface of the clamp is spaced apart from one of the housing and the exhaust treatment device when the second end of the exhaust treatment device is adjacent the first exhaust conduit. | 12-03-2015 |
20150345431 | METHOD FOR IMPOSING VARIABLE LOAD ON THE INTERNAL COMBUSTION ENGINE USED IN VAPOR DESTRUCTION APPLICATIONS - A method of imposing a variable load upon the internal combustion engine as it is typically used in the performance of degassing operations includes coupling a crankshaft of the internal combustion engine to a secondary internal combustion engine. | 12-03-2015 |
20160010526 | Method for extracting a liquid additive from a tank | 01-14-2016 |
20160017779 | EXHAUST GAS AFTERTREATMENT APPARATUS - An exhaust gas aftertreatment apparatus ( | 01-21-2016 |
20160024987 | SYSTEM FOR AN EXHAUST GAS AFTERTREATMENT SYSTEM AND SUPPORT STRUCTURE - Various systems are provided for an exhaust aftertreatment system that includes a support platform, a plurality of isolated legs coupled to the support platform, a plurality of catalysts arranged in parallel with one another and supported above the support platform by the plurality of isolated legs, and an aftertreatment outlet manifold coupled above the plurality of catalysts. | 01-28-2016 |
20160040578 | DUAL FUEL DIESEL OXIDATION CATALYST WITH REMOVABLE CATALYSTS - A diesel oxidation catalyst component may include an inlet, an outlet, and a catalyst chamber body in fluid communication with the inlet and the outlet. An angled jacking bolt assembly is configured to secure a diesel oxidation catalyst within a catalyst chamber defined by the catalyst chamber body. In some implementations, a spacing component or a second diesel oxidation catalyst may be included and secured by the angled jacking bolt assembly. The catalyst chamber body may include an access panel assembly that includes an access panel and securing bolts. The access panel assembly may substantially fluidly seal an opening defined by a mount of the catalyst chamber body when the access panel is secured to the mount by the plurality of securing bolts. The opening may be sized to permit removal of the diesel oxidation catalyst from within the catalyst chamber. | 02-11-2016 |
20160076428 | CAST MOUNTED SUB-STRUCTURE FOR END MODULE - An end cap module for a vehicle exhaust system is comprised of an outer skin and inner skin that cooperate to define an internal cavity. The outer skin includes a mount interface configured for attachment to a vehicle structure. A cast internal sub-structure is mounted within the internal cavity. The inner skin positioned within the internal cavity such that the cast internal sub-structure is positioned between the inner skin and the outer skin. | 03-17-2016 |
20160076431 | EXHAUST PIPE STRUCTURE WITH CATALYST FOR ENGINE - An exhaust pipe structure is the exhaust pipe structure with a catalyst converter provided immediately close to an engine and includes a plurality of exhaust passages and a collecting portion. The collecting portion arranged between the first exhaust passage provided at an end side and a second exhaust passage includes a first guiding portion, a second guiding portion, and a rotating/guiding portion. The exhaust gas introduced from the first exhaust passage and the exhaust gas introduced from the second exhaust passage are guided obliquely downward by the first guiding portion and the second guiding portion, respectively, and are then rotated and guided by the rotating/guiding portion in respective directions opposite to each other to flow toward the catalyst converter. | 03-17-2016 |
20160102591 | CATALYTIC CONVERTER - A catalytic converter ( | 04-14-2016 |
20160115853 | WELDING STRUCTURE OF WARM-UP CATALYTIC CONVERTER - A welding structure for a warm-up catalytic converter (WCC) of a vehicle includes a flange of a turbine housing connected to a front cone of the WCC which reduces an exhaust gas emitted from an engine. A through hole is formed in the flange, through which the exhaust gas flows. An extending portion, which extends in a direction in which the exhaust gas flows from the through hole, is formed and surface-contacts the front cone. The front cone is welded to the extending portion to connect the flange to the front cone. | 04-28-2016 |
20160131004 | Method for operating a device for conveying a fluid - A method for operating a device that conveys a fluid includes: A) detecting activation of the device; B) filling a conveying line with the fluid by operating at least one pump in a conveying direction from at least one tank to at least one injector, and detecting complete filling of the conveying line based on at least one sudden pressure increase at at least one pressure sensor; C) operating the pump and making available fluid at the injector; D) detecting deactivation of the device; and E) partially emptying the conveying line by sucking back the fluid by operation of the at least one pump in a direction counter to the conveying direction. The emptying is stopped if pressure measured at the at least one pressure sensor corresponds to an ambient pressure. | 05-12-2016 |
20160146078 | Pump for pumping a liquid - A pump for pumping a liquid has a pump housing with at least one inlet and at least one outlet. The pump housing has an eccentric rotatable relative to the pump housing by an axle. A deformable element is arranged between the pump housing and the eccentric, and by the deformable element, at least one pump path from the at least one inlet to the at least one outlet is delimited and at least one movable pump path seal is formed, which separates at least one closed pump volume in the pump path. The at least one movable seal is movable in a pump direction from the inlet to the outlet by a movement of the eccentric to pump the fluid along the pump path. The pump has at least one adjustable axial calibrating device, by which the deformable element is clamped in the axial direction parallel to the axle. | 05-26-2016 |
20160160765 | EXHAUST SYSTEM AND ENGINE PROVIDED WITH THE SAME - An exhaust system comprises a first exhaust manifold connected to a first exhaust port of a cylinder; a second exhaust manifold connected to a second exhaust port of the cylinder; a variable valve lift apparatus controlling a valve that closes and opens the first exhaust port; an after-treatment apparatus connected to the first exhaust manifold and the second exhaust manifold; an exhaust temperature sensor; and a controller controlling the variable valve lift apparatus based on an output signal of the exhaust temperature sensor. | 06-09-2016 |
20160186637 | FAILURE DETERMINATION APPARATUS FOR OXYGEN CONCENTRATION SENSOR - A failure determination apparatus for an oxygen concentration sensor disposed downstream of a catalyst provided in an exhaust system of an internal combustion engines is provided for detecting a failure in the oxygen concentration sensor with high accuracy while preventing an erroneous determination of the failure. The failure determination apparatus comprises: a failure determination device for determining a failure in the oxygen concentration sensor based on the length of a period when the output of the oxygen concentration sensor passes through a predetermined output section during enrichment control after a fuel cut mode of the internal combustion engine is released, or based on the length of a period until the output of the oxygen concentration sensor during the enrichment control after release of the fuel cut mode reaches a predetermined output; a rich fuel supply amount calculation device for calculating the time average of an enriching fuel supply amount, relative to a fuel supply amount necessary for stoichiometric combustion, based on an actual fuel supply amount during the enrichment control; and a failure determination restriction device for restricting failure determination of the failure determination device based on the time average of the enriching fuel supply amount. | 06-30-2016 |
20160201587 | EXHAUST GAS PURIFICATION SYSTEM AND EXHAUST GAS PURIFICATION METHOD | 07-14-2016 |
20170234203 | MOUNTING ASSEMBLY FOR A DIESEL OXIDATION CATALYST SYSTEM OF A WORK VEHICLE | 08-17-2017 |
20180023435 | EXHAUST GAS PURIFICATION SYSTEM FOR INTERNAL COMBUSTION ENGINE, INTERNAL COMBUSTION ENGINE, AND EXHAUST GAS PURIFICATION METHOD FOR INTERNAL COMBUSTION ENGINE | 01-25-2018 |
20180023444 | EXHAUST GAS CLEANING CATALYST | 01-25-2018 |