| Entries |
| Document | Title | Date |
|---|
| 20100008832 | Exhaust gas purification catalyst, exhaust gas purification system, and exhaust gas purification method - An exhaust gas purification catalyst ( | 01-14-2010 |
| 20090324454 | PURIFICATION CATALYST FOR REFLOW FURNACE GAS, METHOD FOR PREVENTING CONTAMINATION OF REFLOW FURNACE, AND REFLOW FURNACE - A purification catalyst which prevents contamination within a reflow furnace, including flux components, while suppressing the generation of CO is provided. | 12-31-2009 |
| 20120183449 | Mounting Mat with Flexible Edge Protection and Exhaust Gas Treatment Device Incorporating the Mounting Mat - A mounting mat for an exhaust gas treatment device includes first and second major opposite facing surfaces, leading and trailing edges, and opposite lateral edges. At least a portion of one or both of the opposite lateral edges includes an edge protectant that protects the mounting mat against erosion from hot gases encountered during the normal operation of the exhaust gas treatment device. The edge protectant remains flexible after it has been applied to the mounting mat and substantially dried. Also disclosed is an exhaust gas treatment device that includes a housing and a fragile structure mounted within the housing by the mounting mat having the edge protectant deposited thereon. Additionally disclosed are methods of making the mounting mat and an exhaust gas treatment device. | 07-19-2012 |
| 20130034472 | CATALYTIC CONVERTERS, INSERT MATERIALS FOR CATALYTIC CONVERTERS, AND METHODS OF MAKING - Catalytic converters and insert materials for catalytic converters comprising metalized nanostructures coated on metal or ceramic honeycomb substrates are described. The nanostructures can be bonded directly to the channel walls of the metal or ceramic honeycomb substrates, and generally extend approximately 0.1 mm into the open pore volume of the substrates. The nanostructured coating can be used to support various catalyst formulations, where the nanostructured coating can provide advantages such as increasing reactivity of the catalysts by providing higher accessible surface area, decreasing light-off temperature through enabling smaller particle size of the catalysts, improving durability and lifetime of the catalysts through increased thermal stability, decreasing costs through reduced amounts of precious metals, and/or functioning as a filter for particulate matter. | 02-07-2013 |
| 20090155134 | Catalyzed Soot Filter Manufacture and Systems - Catalyzed soot filters comprising a wall flow monolith having microcracks and pores and a catalyst comprising support particles with particle sizes greater than about the size of the microcracks and less than about the size of the pores are disclosed. Methods of manufacturing catalyzed soot filters and diesel engine exhaust emission treatment systems are also disclosed. | 06-18-2009 |
| 20100040513 | LAMINATED SHEET, METHOD OF PRODUCING THE SHEET, EXHAUST GAS PROCESSING DEVICE, AND METHOD OF PRODUCING THE DEVICE - A disclosed laminated sheet to be wound around an outer surface of an exhaust gas processing unit includes a first mat containing first inorganic fibers and a second mat containing second inorganic fibers, the second mat being laminated on the first mat. The average fiber length of the first inorganic fibers is larger than the average fiber length of the second inorganic fibers and the laminated sheet is to be wound around the exhaust gas processing unit such that the first mat forms an outermost layer. Development of cracks in the outer surface of the laminated sheet can be prevented by winding the laminated sheet around an exhaust gas processing unit such that the first mat faces outward. | 02-18-2010 |
| 20100143210 | CATALYTIC APPARATUS FOR VEHICLE - A catalytic apparatus for a vehicle, may include a caning that is a single hollow unit with both distal ends open, a front substrate and a rear substrate that are disposed apart from each other with a predetermined space therebetween in the caning, and a front flange that is connected to one of the distal ends of the caning to be joined with a front muffler pipe connected to an exhaust manifold and has a bottom portion inclined toward the center axis of the front substrate in the vertical cross section. | 06-10-2010 |
| 20100092349 | COMBINED EXHAUST GAS AFTERTREATMENT DEVICE - The description relates to an exhaust gas purification system for exhaust gases that are emitted from an internal combustion engine, in particular a diesel engine. In one embodiment, exhaust gases from the engine are separated into two streams. The two exhaust streams are processed differently so as to take advantage of different attributes of different aftertreatment devices. | 04-15-2010 |
| 20090317308 | Oxidation of Ammonia in Aqueous Solution to Nitrogen for Ammonia Removal - Catalysts are formulated to resemble a direct ammonia/air fuel cell at short circuit at the nanoscale level to convert ammonia in aqueous solution directly and spontaneously to nitrogen at near or above ambient temperature. The catalyst particle contains a type-A catalyst subparticles for ammonia oxidation to nitrogen, and a type-C catalyst subparticles for oxygen reduction, with the type-A and type-C catalyst subparticles electrically shorted. Advantages realized at the nanoscale level are enhanced conductances for electrons and hydroxyl anions between the neighboring type-A and type-C catalyst subparticles. With the catalysts packed and confined in a catalyst bed in a chemical reactor, the direct conversion of ammonia in an aqueous phase to nitrogen can be carried out continuously for ammonia removal from a water stream in a compact package, and without the high cost arising from constructing and maintaining a bulk electrochemical device, and without the step of exacting the ammonia into gas phase. | 12-24-2009 |
| 20090304559 | METHOD AND APPARATUS FOR REDUCING A NITROGEN OXIDE, AND CONTROL THEREOF - Disclosed herein is a method and apparatus for reducing a nitrogen oxide, and the control thereof. | 12-10-2009 |
| 20090104089 | CARRIER BODY FOR EXHAUST-GAS AFTERTREATMENT WITH DISPERSED CATALYST CONFIGURATION, PROCESS FOR PRODUCING A CARRIER BODY AND EXHAUST GAS TREATMENT UNIT AND VEHICLE HAVING A CARRIER BODY - A carrier body includes an overall surface having at least one coating portion with a catalytically active coating including at least one type of catalyst elements disposed in dispersed form at a surface of the carrier body. The catalyst elements have a mean spacing along the surface of at least 3 micrometers. The surface has a mean roughness depth R | 04-23-2009 |
| 20090041637 | CATALYST-SUPPORTED PARTICULATE FILTER - In a particulate filter, a catalyst layer containing Pt-carried activated alumina particles, CeZr-based mixed oxide particles and ZrNd-based mixed oxide particles is formed, the proportion of the total amount of the CeZr-based mixed oxide particles and the ZrNd-based mixed oxide particles in the total amount of the Pt-carried activated alumina particles, the CeZr-based mixed oxide particles and the ZrNd-based mixed oxide particles is 10% to 60% by mass, both inclusive, and the mass ratio of the CeZr-based mixed oxide particles to the ZrNd-based mixed oxide particles is 20/80 to 80/20, both inclusive. This configuration enhances the particulate burning property and the low-temperature exhaust gas conversion efficiency. | 02-12-2009 |
| 20090092525 | EXHAUST GAS CLEANING APPARATUS WITH IMPROVED CONFIGURATION ENSURING PROPER INJECTION OF REDUCING AGENT - An exhaust gas cleaning apparatus for cleaning the exhaust gas from an internal combustion engine includes: an exhaust gas passage through which the exhaust gas flows; a reducing agent injector that injects a reducing agent into the exhaust gas passage; and a reduction catalyst that is provided in the exhaust gas passage downstream of the reducing agent injector to promote, at least, a reduction reaction between a component of the exhaust gas and the reducing agent. The exhaust gas passage includes a bent portion formed with a bend. The reducing agent injector is provided on the outside of the bend of the bent portion to inject the reducing agent in a direction that deviates from a tangent line, which is tangent to a central axis line of the bent portion at a downstream-side end of the bent portion, toward the inside of the bend of the bent portion. | 04-09-2009 |
| 20130058839 | WALL FLOW TYPE EXHAUST GAS PURIFICATION FILTER - There is provided a wall flow type exhaust gas purification filter is provided with a honeycomb structure having porous ceramic partition walls | 03-07-2013 |
| 20100021355 | METHOD AND APPARATUS FOR REDUCING A NITROGEN OXIDE - This invention relates to an apparatus for reducing a nitrogen oxide. In particular, it relates to the use of a gas analyzer to obtain information related to the compositional content of a multi-component gas mixture that contains a nitrogen oxide for the purpose of assisting in the control of the reduction. In particular, the apparatus provides control of the reaction of reduction, and, more particularly, control of the injection of a reducing agent into the gas mixture containing the nitrogen oxide. The apparatus enables the calculation of the amount of reducing agent to be injected in relation to information about the compositional content of the gas mixture, and a gas analyzer containing an array of chemo/electro-active materials may be used in conjunction therewith. | 01-28-2010 |
| 20090041635 | Fluid treatment device having multiple layer honeycomb structure and method of manufacture - A device for treating fluids, such as automotive exhaust gases is provided, as well as a method of manufacturing such a device. The invention provides a honeycomb structure, a matrix of ceramic walls that defines a plurality of parallel, fluid-conducting cells oriented along an axis, arranged in a stacked or discontinuous configuration between an inlet and outlet, where adjacent layers of honeycomb structure are separated by layers of air spaces. Each matrix layer has opposing faces that defines the inlets and outlets of the cells, and a peripheral portion or peripheral region including an outer skin. The peripheral portions or peripheral regions of adjacent stacked ceramic layers are mutually contiguous to prevent fluid flowing through the stacked ceramic layers from leaking between said outer skins. | 02-12-2009 |
| 20110280772 | HOLDING SEALING MATERIAL, METHOD FOR WINDING THE HOLDING SEALING MATERIAL AROUND OBJECT AND EXHAUST GAS PURIFYING APPARATUS - A holding sealing material includes laminated mats. One or more fixed parts partially combine the mats. Each of the mats has a basic rectangular shape. Each of the mats has a recess on one of shorter sides of the rectangular shape and a projection on another shorter side and is designed to be wound around an object to be wound so that the projection and the recess are fitted to each other. The mats have respective longitudinal lengths that increase as a distance from the object to each of the mats increases. A mat that is placed at a closest position to the object has a shortest longitudinal length. An area of the projection of the mat that is placed at a closest position to the object is smaller than an area of the projection of a mat that is placed at a farthest position from the object. | 11-17-2011 |
| 20120288416 | CATALYST UNIT - A catalyst unit may include a first brick having a first noble metal layer formed along an exhaust gas passage thereof and being disposed on a space that an exhaust gas flow rate may be a predetermined rate, a second brick being disposed onto the first brick and having a second noble metal layer formed along an exhaust gas passage thereof, wherein the second brick may be disposed on a space that an exhaust gas flow rate may be lower than the predetermined rate, and wherein the first brick and the second brick may be attached together to fix the second brick onto the first brick. | 11-15-2012 |
| 20100266461 | Method For Reducing Pressure Drop Through Filters, And Filter Exhibiting Reduced Pressure Drop - Methods for generating and applying coatings to filters with porous material in order to reduce large pressure drop increases as material accumulates in a filter, as well as the filter exhibiting reduced and/or more uniform pressure drop. The filter can be a diesel particulate trap for removing particulate matter such as soot from the exhaust of a diesel engine. Porous material such as ash is loaded on the surface of the substrate or filter walls, such as by coating, depositing, distributing or layering the porous material along the channel walls of the filter in an amount effective for minimizing or preventing depth filtration during use of the filter. Efficient filtration at acceptable flow rates is achieved. | 10-21-2010 |
| 20090087353 | MAT MEMBER, EXHAUST GAS TREATMENT APPARATUS, AND MUFFLING APPARATUS - A mat member includes a base member and a sheet member. The base member includes inorganic fibers and has first and second main surfaces. The sheet member is disposed on at least one of the first and the second main surface. The sheet member has an openings provided on at least a part of a surface of the sheet member. | 04-02-2009 |
| 20090263297 | CATALYST AND METHOD OF MANUFACTURE - Disclosed herein is a catalytic composition comprising a first catalyst composition portion that comprises a zeolite; and a second catalyst composition portion that comprises a catalytic metal disposed upon a porous inorganic substrate; the first catalyst composition portion and the second catalyst composition portion being in an intimate mixture. | 10-22-2009 |
| 20090263296 | CATALYST WITH BIOREACTOR FOR COMBUSTION ENGINES - The present Patent refers to a damper or muffler collector for the exhaust of Diesel, gas, alcohol, natural gas vehicles' engines, and any other liquid fuel or fuel gas which may be used in internal combustion engines; it may be used for vehicle or stationary engines. | 10-22-2009 |
| 20120269693 | EXHAUST EMISSION CONTROL DEVICE FOR INTERNAL COMBUSTION ENGINE - An object of the present invention is to provide an exhaust emission control device of an internal combustion engine which is used in purification of exhaust gas and achieves both high catalytic activity at low temperature and high durability at high temperature. In an exhaust emission control device of an internal combustion engine of the present invention, a catalyst is disposed in an exhaust path of the internal combustion engine, at least one kind of the catalyst is noble metal supporting silicon carbide particles, and the noble metal supporting silicon carbide particles include a silicon oxide layer in which noble metal particles are supported on a surface of silicon carbide particles having an average primary particle diameter of 0.005 μm or more and 5 μm or less. | 10-25-2012 |
| 20080206114 | Multilayer Mounting Mats and Pollution Control Devices Containing Same - A multilayer mat for mounting a pollution control element in a pollution control device is provided. The mat comprises at least one first layer having at least one lateral edge requiring protection from exposure to (i) mechanical erosion forces generated by the impact of exhaust gases passing through a pollution control device, (ii) high temperatures associated with the exhaust gases, or both (i) and (ii). The mat also comprises at least one second layer having at least one lateral edge that is capable of protecting the at least one lateral edge of the first layer. The width of the first layer is less than the width of the second layer. The first and second layers are stacked one on top of the other such that the at least one lateral edge of the first layer is positioned between the opposite lateral edges of the second layer. The first layer has an exposed major surface. | 08-28-2008 |
| 20110206564 | FILTER BAG, PLEATABLE FILTRATION MATERIAL THEREFORE, AND PROCESS OF MAKING SAME - The pleated filter bag, which can be used in a bag-house type dust collector, is elongated and has a longitudinal hollow center with an open end, and a pleated filter wall circumscribing the hollow center. The pleated filter wall has a felt such as PTFE fibers felted onto an apertured and pleatable scrim which can be made of metal, and having a permeability lower than a permeability of the scrim. A membrane of lower-permeability material, such as an E-PTFE membrane, covers the support felt on the outer side of the bag. | 08-25-2011 |
| 20100111778 | COMPOSITE OXIDE FOR EXHAUST GAS PURIFICATION CATALYST AND FILTER - A composite oxide for exhaust gas purification catalysts, which comprises Ce, Bi, R and oxygen and satisfies 0| 05-06-2010 | |
| 20080241005 | CATALYST CARRIER AND EXHAUST-GAS TREATING DEVICE - A catalyst carrier including a honeycomb structure having two end faces and a peripheral portion connecting the end faces to each other and in which cells extending between the end faces are separated by cell walls. The catalyst carrier further includes a coated layer that is disposed on the peripheral portion throughout a full length of the honeycomb structure. A reinforcing member is disposed on the peripheral portion of the honeycomb structure, where the reinforcing member has two reinforcing rings. The reinforcing rings are disposed to surround the periphery of each of the end faces of the honeycomb structure respectively. | 10-02-2008 |
| 20090169440 | POLLUTION TREATMENT DEVICE FOR VOLATILE ORGANIC GAS - This invention relates A pollution treatment device for volatile organic gas, comprising scrubbing tower, catalytic oxidation tank, liquid storage tank and ozonizer, wherein said scrubbing tower has scrubbing liquid nozzles in the middle of its inside space, sieve plates in the lower and gas-liquid cyclone separators in the upper, its air inlet is located lower than said sieve plates and its outlets higher than said gas-liquid device; said catalytic oxidation tank has photocatalyst particles in it, its air inlet is at its bottom and its air outlet is on its top; said ozonizer has ozone contactor for dissolving ozone in water; the nozzle pipe of said scrubbing tower is linked with said liquid storage tank; the water outlet at the bottom of said scrubbing tower is linked with the water inlet at the bottom of said catalytic oxidation tank. This device has good treatment effect, simple structure and lower operation cost relatively, suitable to treat various gaseous pollutants. | 07-02-2009 |
| 20080286166 | FILTER ELEMENT - A filter element comprises a dimensionally stable porous formed body with an interior that provides a space for unfiltered fluid or a filtrate space. The interior of the formed body is partially filled with a material of expanded ceramics that is coated with a catalyst material such that a flow channel remains open. The material that is coated with catalyst material is provided in the form of a dimensionally stable catalyst body which is inserted into the interior such that it adjoins the formed body. | 11-20-2008 |
| 20080267838 | Apparatus and method for sequestering flue gas CO2 - A fluidized bed reactor device for sequestering flue gas CO | 10-30-2008 |
| 20110014090 | APPARATUS FOR TREATING A GAS STREAM - Apparatus for treating a gas stream comprises a plurality of cylindrical proton conducting membranes. The gas stream is conveyed through the bore of each cylindrical membrane, and a hydrogen-containing gas is conveyed about the external surface of each cylindrical membrane. A catalyst provided on the inner side of each membrane catalyses a reaction between a halogen-containing component of the gas stream, such as CF | 01-20-2011 |
| 20090246097 | HONEYCOMB STRUCTURE AND EXHAUST GAS TREATING APPARATUS - A honeycomb structure includes four honeycomb units each including inorganic particles, an inorganic binder, and cell walls extending from a first end face to a second end face along a longitudinal direction to define a plurality of cells. The cell walls includes a first cell walls extending along a first direction in a cross sectional plane perpendicular to the longitudinal direction and a second cell walls extending along a second direction substantially perpendicular to the first direction in the cross sectional plane. Adhesive layers are provided between the four honeycomb units to connect the four honeycomb units. The adhesive layers extend in a first extending direction and a second extending direction substantially perpendicular to the first extending direction in the cross sectional plane. A minimum angle between the first direction and the first extending direction or the second extending direction is approximately 22.5 degrees to approximately 45 degrees. | 10-01-2009 |
| 20090208383 | EXHAUST GAS PURIFICATION DEVICE FOR INTERNAL COMBUSTION ENGINE - An exhaust gas purification device for an internal combustion engine, provided in an exhaust passage of the internal combustion engine, includes: a filter-shape carrier adapted to trap particulate matter in exhaust gas; and an oxidation catalyst supported on the filter-shape carrier and comprising: a particulate oxygen storage material; and an oxygen ion conductive material supported around the oxygen storage material in surface contact therewith. | 08-20-2009 |
| 20090246096 | HONEYCOMB STRUCTURE AND EXHAUST GAS TREATMENT APPARATUS - A honeycomb structure includes at least one honeycomb unit having a first end face and a second end face opposite to the first end face along a longitudinal direction of the at least one honeycomb unit. The at least one honeycomb unit includes an inorganic particle, an inorganic binder, cell walls extending along the longitudinal direction from the first end face to the second end face to define a plurality of cells, a NOx storage catalyst provided at the cell walls, and a noble metal catalyst provided at the cell walls. An amount of the noble metal catalyst provided at a vicinity of the first end face is substantially different from an amount of the noble metal catalyst provided at a vicinity of the second end face. | 10-01-2009 |
| 20090087352 | MAT MATERIAL, EXHAUST GAS TREATING APPARATUS, AND MUFFLER - A mat material includes inorganic fibers, a first surface, and a second surface opposite to the first surface. The mat material has plural needle traces formed by performing a needling treatment. The needle traces extend from the first surface toward the second surface and from the second surface toward the first surface. There is no depth in the mat material that the needle traces do not reach. There is substantially no protrusion of a bundle of the inorganic fibers at a position on the second surface that lies on a line extending from each of the needle traces extending from the first surface. There is substantially no protrusion of a bundle of the inorganic fibers at a position on the first surface that lies on a line extending from each of the needle traces extending from the second surface. | 04-02-2009 |
| 20110058990 | CERAMIC FILTER ELEMENT - The reduction of nitrogen oxides in gas is carried out, by means of selective reaction of the nitrogen oxide with the reducing agent in the in the solid catalyst. In order to achieve high catalytic activity, the above is carried out at high gas temperatures. As a rule, ceramic filter elements, coated with catalytic material are used. This does, however, give rise to the risk the catalytically active components are stripped from the filter during the hot gas filtration. A ceramic filter element with support material in the form of particles, with binder material and catalytic material is thus disclosed, whereby the binder material comprises catalytic material, or the binder material is partly replaced by the catalyst material and the support material particles ( | 03-10-2011 |
| 20100233046 | SOOT OXIDATION CATALYST AND METHOD OF MAKING - A catalyst composition for facilitating the oxidation of soot from diesel engine exhaust is provided. The catalyst composition includes a catalytic metal selected from Pt, Pd, Pt—Pd, Ag, or combinations thereof, an active metal oxide component containing Cu and La, and a support selected from alumina, silica, zirconia, or combinations thereof. The platinum group metal loading of the composition is less than about 20 g/ft | 09-16-2010 |
| 20100221154 | METHOD AND APPARATUS FOR REDUCING NOX EMISSIONS FROM A LEAN BURNING HYDROCARBON FUELED POWER SOURCE - One embodiment includes an oxidation catalyst assembly formed by applying a washcoat of platinum and a NO | 09-02-2010 |
| 20090041636 | CATALYST-SUPPORTED PARTICULATE FILTER - In at least part of a catalyst layer of a particulate filter, a second catalyst part is exposed on the surface of the catalyst layer to overlie a first catalyst part, the first catalyst part contains Pt-carried activated alumina particles, the second catalyst part contains ZrNd-based mixed oxide particles containing a rare earth metal M and at least one of the first catalyst part and the second catalyst part further contains CeZr-based mixed oxide particles containing a rare earth metal R. | 02-12-2009 |
| 20110150717 | MOUNTING MAT FOR EXHAUST GAS TREATMENT DEVICE - A mounting mat for an exhaust gas treatment device includes a wet laid sheet of polycrystalline inorganic fibers that have been physically entangled while the wet laid sheet is still in a wet condition. The exhaust gas treatment device includes a housing, a fragile catalyst support structure resiliently mounted within the housing, and the mounting mat disposed in a gap between the housing and the fragile structure. Additionally disclosed are methods of making a mounting mat for an exhaust gas treatment device and for making an exhaust gas treatment device incorporating the mounting mat. | 06-23-2011 |
| 20090035195 | Exhaust treatment system with NO2 control - An exhaust treatment system includes a catalyzed particulate filter disposed in a first passageway and configured to receive a first portion of a flow of exhaust. The catalyzed particulate filter is at least partially coated with a catalytic material for converting NO to NO | 02-05-2009 |
| 20090035194 | Exhaust treatment system with an oxidation device for NO2 control - An exhaust treatment system includes an oxidation device having a plurality of channels through which a flow of exhaust flows. A first portion of the channels of the oxidation device are coated with catalytic material for converting NO to NO | 02-05-2009 |
| 20090214397 | Exhaust Gas Treatment Apparatus - An exhaust gas treatment apparatus includes a device (A) which is provided in an exhaust system and which selectively reduces NO | 08-27-2009 |
| 20110033344 | HONEYCOMB BODY WITH FLEXIBLE CONNECTING POINTS, EXHAUST-GAS TREATMENT UNIT AND MOTOR VEHICLE - A honeycomb body is formed of at least one at least partially structured sheet-metal foil and has a plurality of channels. The sheet-metal foil has a course or profile direction and includes top-side connecting points and bottom-side connecting points to itself or to at least one additional smooth sheet-metal foil or structured sheet-metal foil. At least the top-side connecting points or bottom-side connecting points form a curved connection line and expansion joints between the respective connection points of the curved connection line. An exhaust-gas treatment unit and a motor vehicle are also provided. | 02-10-2011 |
| 20110033345 | HONEYCOMB BODY WITH FLEXIBILITY ZONES, EXHAUST-GAS PURIFICATION UNIT AND MOTOR VEHICLE - A honeycomb body includes at least one housing and a honeycomb structure with a plurality of channels. The honeycomb structure is formed from at least one at least partially structured metallic layer which forms connecting points fixing the honeycomb structure. A cross section of the honeycomb structure has radial zones with differing densities of the connecting points. In at least one zone, at least 1% and at most 20% of inner contact points in the cross section also form a connecting point. An exhaust-gas purification unit and a motor vehicle are also provided. | 02-10-2011 |
| 20100158768 | EXHAUST GAS PURIFYING CATALYST AND EXHAUST GAS PURIFYING APPARATUS - An exhaust gas purifying catalyst includes: a substrate; and a catalyst layer supported on the substrate and including: a surface layer including: rhodium (Rh); and a first support material including zirconia (ZrO2); and an inner surface layer including: palladium (Pd); and a second support material including magnesia (MgO). | 06-24-2010 |
| 20110116982 | HONEYCOMB STRUCTURE AND EXHAUST GAS CONVERTER - A honeycomb structure includes at least one honeycomb unit. The at least one honeycomb unit has a plurality of through holes defined by partition walls along a longitudinal direction of the honeycomb unit. The honeycomb unit includes zeolite, an inorganic binder, and a noble metal catalyst. The noble metal catalyst is supported in a region of the honeycomb unit. The region extends from one end portion of the honeycomb unit in the longitudinal direction over approximately 1.5% or more to approximately 20% or less of an overall length of the honeycomb unit in the longitudinal direction. | 05-19-2011 |
| 20110116983 | HONEYCOMB STRUCTURE AND EXHAUST GAS CONVERTER - A honeycomb structure includes at least one honeycomb unit. The honeycomb unit includes a first region, a second region different from the first region, an inorganic binder, and zeolite. The first region extends from one end of the honeycomb unit over approximately 30% or more and approximately 70% or less of an overall length of the honeycomb unit in the longitudinal direction. The zeolite includes a first zeolite and a second zeolite. The first zeolite is ion-exchanged with a first metal and has a mass content. The second zeolite is ion-exchanged with a second metal and has a mass content that is smaller than the mass content of the first metal in the first region and larger than the mass content of the first metal in the second region. | 05-19-2011 |
| 20100034712 | EXHAUST-GAS CONVERTING APPARATUS - A storage catalyst | 02-11-2010 |
| 20110176969 | COMPOSITE OXIDE FOR EXHAUST GAS PURIFICATION CATALYST, METHOD FOR MANUFACTURING THE SAME, COATING MATERIAL FOR EXHAUST GAS PURIFICATION CATALYST, AND FILTER FOR DIESEL EXHAUST GAS PURIFICATION - A composite oxide for an exhaust gas purification catalyst is provided which can burn PM in diesel engine exhaust gas at low temperatures and has a good S desorption property. The composite oxide for an exhaust gas purification catalyst is composed of Ce, Bi, Pr, R, and oxygen in a molar ratio of Ce:Bi:Pr:R=(1−x−y−z):x:y:z. The ratios of Ce, Bi, Pr, and R satisfy 0| 07-21-2011 | |
| 20110104016 | HONEYCOMB BODY WITH CONNECTION-FREE REGION, EXHAUST-GAS PURIFICATION UNIT AND MOTOR VEHICLE - A honeycomb body includes at least a housing and a honeycomb structure having a plurality of channels. The honeycomb structure is formed of at least one at least partially structured metallic layer that forms connecting points fixing the honeycomb structure. At most 20% of inner contact points in a cross section of the honeycomb structure form a connection point, and the connection points are disposed at a distance from each other in such a way that respective connection-free regions of the same size surround each of the connection points. An exhaust-gas purification unit and a motor vehicle are also provided. | 05-05-2011 |
| 20110250097 | HONEYCOMB STRUCTURE - A honeycomb structure has a substantially circular-pillar-shape. The honeycomb structure includes at least one electrically conductive honeycomb unit, a first electrode, and a second electrode. The at least one electrically conductive honeycomb unit includes walls extending along a longitudinal direction of the at least one electrically conductive honeycomb unit to define a plurality of through holes. The first electrode is provided on an outer circumferential surface of the honeycomb structure. The second electrode is provided in a vicinity of a central axis of the honeycomb structure extending along the longitudinal direction. | 10-13-2011 |
| 20110250096 | HONEYCOMB STRUCTURE - A honeycomb structure includes at least one honeycomb unit. The at least one honeycomb unit includes a pair of electrodes and cell walls. The cell walls extend along a longitudinal direction of the at least one honeycomb unit to define a plurality of through holes. The cell walls have pores filled with a substance under a formation region of the pair of electrodes. The substance has an electrical resistivity lower than an electrical resistivity of a material to form the at least one honeycomb unit. | 10-13-2011 |
| 20110076202 | PARTICULATE COMBUSTION CATALYST, PARTICULATE FILTER AND EXHAUST GAS PURIFYING APPARATUS - Provided is a particulate combustion catalyst including a carrier formed of monoclinic zirconium oxide particles, and metallic Ag or Ag oxide, which serves as a catalyst component and is supported on the carrier, wherein the amount of the catalyst component is 0.5 to 10 mass %, as reduced to metallic Ag, on the basis of the mass of the carrier, and preferably, the catalyst has a BET specific surface area of 8 to 21 m | 03-31-2011 |
| 20110256032 | Exhaust Gas Treatment Device - The present invention relates to an exhaust gas treatment device for an exhaust system of a combustion engine, more preferably of a motor vehicle, with a housing comprising a jacket and an outlet funnel, and with at least one exhaust gas treatment element which is arranged in the jacket and is axially supported on the housing via a support ring. | 10-20-2011 |
| 20080247917 | Catalyst for Removing Nitrogen Oxidase - The present invention is to provide a catalyst for removing nitrogen oxides which is capable of keeping sufficient denitrification performance, i.e., a high removal rate of nitrogen oxides in exhaust gas having a high NO | 10-09-2008 |
| 20080253940 | CARBON MONOXIDE TREATMENT APPARATUS FOR FUEL CELL - A carbon monoxide treatment apparatus according to an exemplary embodiment of the present invention includes: a reactor body; a partitioning plate located inside the reactor body for partitioning an internal space of the reactor body into a first section and a second section; a channel member in the first section for transporting an introduced gas including a reformed gas and an oxidant gas to the second section; and a reaction unit around the channel member of the first section for reducing a concentration level of carbon monoxide in the introduced gas moving through the first section by utilizing a preferential oxidation reaction of the carbon monoxide and the oxidant gas of the introduced gas, wherein moisture of the introduced gas that has been partially condensed when passing through the channel member is stored in the second section. | 10-16-2008 |
| 20110262311 | FILTRATION STRUCTURE HAVING INLET AND OUTLET SURFACES WITH A DIFFERENT PLUGGING MATERIAL - The invention relates to a filtering structure of the honeycomb type, comprising an array of longitudinal adjacent channels of mutually parallel axes separated by porous filtering walls, said structure being characterized in that the material constituting the plugs placed on the first end of the filter have substantially the same composition and are structuring continuous with said walls and in that the plugs placed on the second end of the filter have a different chemical composition and/or a different structural composition from those/that of the plugs placed on said first end. | 10-27-2011 |
| 20110097246 | Low Shear Mounting Mat for Pollution Control Devices - A mounting mat for an exhaust gas treatment device including high temperature resistant ceramic fibers containing alumina and/or high temperature resistant biosoluble inorganic fibers, organic binder which at least partially liquefies at elevated temperature prior to binder burnout, colloidal inorganic oxide and optionally intumescent material. The exhaust gas treatment device includes a housing, a fragile catalyst support structure resiliently mounted within the housing, and the mounting mat disposed in a gap between the housing and the fragile catalyst support structure. | 04-28-2011 |
| 20100028220 | Composite catalyst substrate - A composite catalyst substrate is provided, which may include a metallic core and a porous ceramic coating on the metallic core. The substrate may also include a washcoat substantially covering the ceramic coating and including a catalyst material configured to react with constituents in an exhaust flow of an exhaust producing engine. The catalyst material may be dispersed in, or coated on, the washcoat. | 02-04-2010 |
| 20100316538 | Polymeric Trap with Adsorbent - A method of adhering a particulate material, such as a hydrocarbon adsorbent material and/or a catalytic material, to a plastic surface, and products comprising the adhered material are disclosed. | 12-16-2010 |
| 20090022633 | CATALYTIC CONVERTER, HOLDING MATERIAL FOR CATALYTIC CONVERTER AND PRODUCTION METHOD THEREOF - The present invention relates to a holding material for a catalytic converter including a catalyst carrier, a metal casing for receiving the catalyst carrier, and the holding material wound around the catalyst carrier and interposed in a gap between the catalyst carrier and the metal casing, the holding material including a low thermal conductivity layer, in which the low thermal conductivity layer includes: a molded material containing an inorganic powder; or a composite material of a porous substrate with an aerogel. | 01-22-2009 |
| 20100055004 | MOUNTING MAT WITH FLEXIBLE EDGE PROTECTION AND EXHAUST GAS TREATMENT DEVICE INCORPORATING THE MOUNTING MAT - A mounting mat for an exhaust gas treatment device includes first and second major opposite facing surfaces, leading and trailing edges, and opposite lateral edges. At least a portion of one or both of the opposite lateral edges includes an edge protectant that protects the mounting mat against erosion from hot gases encountered during the normal operation of the exhaust gas treatment device. The edge protectant remains flexible after it has been applied to the mounting mat and substantially dried. Also disclosed is an exhaust gas treatment device that includes a housing and a fragile structure mounted within the housing by the mounting mat having the edge protectant deposited thereon. Additionally disclosed are methods of making the mounting mat and an exhaust gas treatment device. | 03-04-2010 |
| 20120009093 | HONEYCOMB FILTER AND METHOD FOR PRODUCING HONEYCOMB FILTER - There is provided a honeycomb filter wherein particles having an average particle diameter smaller than the average pore diameter of partition walls are deposited at least in open pores formed in the surface layer of the partition wall and in the pores of the partition wall in a surface layer portion of the partition walls on the exhaust gas inflow side, thereby forming a composite region. The average pore diameter of the partition walls is 5 to 40 μm, and the porosity of the partition wall is 35 to 75%. The particles to be deposited have an average particle diameter of 1 to 15 μm, and the height of the composite region is not more than 80 μm in the direction from the outermost contour line of the partition walls to the surface of the partition walls. | 01-12-2012 |
| 20120009092 | HONEYCOMB FILTER AND METHOD FOR PRODUCING HONEYCOMB FILTER - There is provided a honeycomb filter wherein particles having an average particle diameter smaller that of the particles constituting partition walls are deposited at least in open pores formed by the particles constituting the partition walls and/or gaps between the particles in a surface layer portion of the partition walls on the exhaust gas inflow side, thereby forming a composite region. The average pore diameter of the partition walls is 5 to 40 μm, and the porosity of the partition wall is 35 to 75%. The particles to be deposited have an average particle diameter of 1 to 15 μm, and the height of the composite region is not more than 80 μm in the direction from the outermost contour line of the partition walls to the surface of the partition walls. | 01-12-2012 |
| 20120058018 | SILICO-ALUMINO PHOSPHATE, HONEYCOMB STRUCTURAL BODY AND EXHAUST GAS CONVERSION APPARATUS - A silico-alumino phosphate includes Si, Al, and P. A ratio of an amount of substance of Si to a sum of an amount of substance of Al and an amount of substance of P is approximately 0.22 or more and approximately 0.33 or less. An acid point is approximately 1.2 mmol/g or more. A honeycomb structural body includes a honeycomb unit. The honeycomb unit includes the silico-alumino phosphate and an inorganic binder. The honeycomb unit has a plurality of through-holes divided by a plurality of partition walls and arranged in a longitudinal direction of the honeycomb unit. An exhaust gas conversion apparatus includes the honeycomb structural body, a holding sealing member and a metal pipe. The holding sealing member is provided at an outer peripheral portion of the honeycomb structural body. The honeycomb structural body and the holding sealing member are installed in the metal pipe. | 03-08-2012 |
| 20090104090 | IN-SITU DIFFUSION ALLOYING AND PRE-OXIDATION ANNEALING IN AIR OF FE-CR-AL ALLOY CATALYTIC CONVERTER MATERIAL - A manufacturing method of metal substrate catalytic converter and the resulting product. In this method, a multiple layer aluminum and ferritic stainless steel composite material is first made by roll-bonding and then further processed to a final foil thickness. The composite foils are then fabricated to a honeycomb-like converter with air flow channels. The converter is then thermally treated at a high temperature during a necessary converter fabrication process. The monolithic FeCrAl alloy is then obtained in the converter by in-situ diffusion alloying with pre-oxide film on the surfaces. The resulted material has improved oxidation resistance and thermal dimension stability at a high temperature. | 04-23-2009 |
| 20100247397 | MAGNETIC COUPLING DEVICE FOR AN ELEVATOR SYSTEM - A catalyst-carrier supporting material of a catalytic converter excellent in heat resistance and capable of maintaining a sufficient holding capability for supporting the catalyst-carrier for a long duration even in the environments exceeding 950° C. The catalyst-carrier supporting material comprising: a heat resistant layer which contains crystalline alumina fibers and an organic binder evenly impregnated with the crystalline alumina fibers and to be eliminated by thermal decomposition; and a thermally intumescent layer layered on the heat resistant layer which contains crystalline alumina fibers, an organic binder dispersed in the crystalline alumina fibers and to be eliminated by thermal decomposition, and vermiculite dispersed in the crystalline alumina fibers, wherein the crystalline alumina fibers exist in an amount of 1,400 g/m2 or higher in the catalyst-carrier supporting material, the ratio of the amount of the crystalline alumina fibers existing in the heat resistant layer and the amount of the crystalline alumina fibers existing in the thermally intumescent layer is 0.98 to 1.98, and the vermiculite exists in an amount of 23 to 33% by weight in the thermally intumescent layer. | 09-30-2010 |
| 20120213675 | COMPACT TWO-STAGE GRANULAR MOVING-BED APPARATUS - A compact two-stage granular moving-bed apparatus comprises a vessel, a flow-corrective element, and a filter material supplying part. The vessel comprises a hollow interior, a gas outlet, a first media outlet and a second media outlet. The flow-corrective element divides the hollow interior into a first channel and a second channel. The filter material supplying part has a first provider for providing a first granular material flowing through the first channel and a second provider for providing a second granular material flowing through the second channel, wherein a vertical level of each first and second provider is adjustable so that a first flow path that an exhaust gas flows through the first granular material and a second flow path that the exhaust gas flow through the second granular material is respectively capable of being controlled. | 08-23-2012 |
| 20100008831 | PLASMA REACTION APPARATUS, PLASMA REACTION METHOD USING THE SAME, PLASMA REACTION METHOD OF PERSISTENT GAS, AND APPARATUS FOR DECREASING NOx BY OCCLUSION CATALYST - The present invention relates to a plasma reaction apparatus and a plasma reaction method using the same. More particularly, the present invention relates to a plasma reaction apparatus which is applied to the reforming of fuel by generating rotating arc plasma and using the rotating arc being generated, the chemical treatment of a persistent gas, and the apparatus for decreasing NOx by an occlusion catalyst, and a plasma reaction method using the same. For this purpose, a raw material for a reaction is allowed to flow through an inflow hole in a swirl structure so that the raw material forms a rotating flow to progress. Accordingly, the raw material is sufficiently reacted in a plasma reaction space of a restrictive volume, and a high temperature plasma reaction is more promptly performed. Furthermore, a plasma reaction zone is expanded, prior to discharge, by a broad area chamber formed as the width of an upper part of a furnace is expanded, and plasma being generated is expanded and stayed as a pointed end spaced from an electrode at a predetermined interval is formed at an expanded end. Accordingly, the present invention relates to a plasma reaction apparatus and a plasma reaction method using the same, a plasma reaction method of a persistent gas, and an apparatus decreasing NOx by an occlusion catalyst, all of which are capable of excluding the discontinuity of the plasma reaction zone. | 01-14-2010 |
| 20090060802 | EXHAUST GAS TREATMENT DEVICE - A mounting mat for an exhaust gas treatment device including inorganic fibers, organic binder, antioxidant, optionally clay and optionally intumescent material. The exhaust gas treatment device includes a housing, a fragile catalyst support structure resiliently mounted within the housing, and the mounting mat disposed in a gap between the housing and the fragile catalyst support structure. Additionally disclosed are methods of making a mounting mat for an exhaust gas treatment device and for making an exhaust gas treatment device incorporating the mounting mat. | 03-05-2009 |
| 20110027136 | PARTICULATE FILTRATION DEVICE - A particulate filtration device includes a filter with a feed inlet side for a feed gas and an filtrate outlet for a filtrate, feed gas channels and filtrate channels, and one or more diaphragms between the feed inlet side and the filtrate outlet. Opposite to the feed inlet side a particulate outlet is arranged with a collector compartment attached to the particulate outlet for collecting particulates retained in the feed gas channels. | 02-03-2011 |
| 20100247398 | HONEYCOMB STRUCTURE - A disclosed honeycomb structure includes at least one honeycomb unit having parallel through holes separated by partition walls and extending in the longitudinal direction, the honeycomb unit including a first SOx-occluding agent, first inorganic particles, and an inorganic binder; and coating layers formed on the partition walls and including a second SOx-occluding agent and second inorganic particles. In the honeycomb structure, the basicity of the honeycomb unit is higher than that of the coating layers. | 09-30-2010 |
| 20110236271 | ZEOLITE STRUCTURE AND MANUFACTURING METHOD THEREOF - The zeolite structure includes a zeolite material containing a plurality of zeolite particles and an inorganic binding material which binds the zeolite particles to one another, the plurality of zeolite particles include fine zeolite particles having a small average particle diameter and coarse zeolite particles which have an average particle diameter of three or more times the average particle diameter of the fine zeolite particles and which are not an agglomerated material of primary particles, a ratio of volumes of the coarse zeolite particles with respect to the whole volume of the plurality of zeolite particles is from 40 to 90 vol %, in the zeolite material, a ratio of a volume of the inorganic binding material is from 5 to 50 vol %, and a zeolite raw material containing the plurality of zeolite particles and the inorganic binding material is extruded to form a zeolite structure. | 09-29-2011 |
| 20100233045 | SULFUR TOLERANT PEROVSKITE SUPPORTED CATALYSTS - A sulfur tolerant oxidation catalyst with appreciable NO and HC oxidation capabilities has been developed for use in any component of an exhaust aftertreatment system for a lean-burn engine where the oxidation of at least NO is desired. Several non-exclusive examples of such components where the oxidation catalyst may be employed include a DOC and a LNT. The oxidation catalyst may comprise perovskite oxide particles that support palladium particles. The ability of the palladium supported perovskite oxide particles to concurrently oxidize NO and HC's can significantly diminish or altogether eliminate the use of platinum in the exhaust aftertreatment system for at least NO oxidation. The oxidation catalyst, moreover, may exhibit superior thermal durability and better NO and HC oxidation activities than platinum in some instances. | 09-16-2010 |
| 20100233044 | DESULFURIZATION-DENITRATION APPARATUS FOR EXHAUST GAS - Adsorbent dust can be recovered while spraying is prevented. An apparatus is provided with a desulfurization-denitration tower body and an adsorbent discharging device. An entrance louver and an exit louver are provided for forming a packed moving bed of an adsorbent that moves downward inside the tower body, the apparatus has a throttle portion provided with a side panel that is inclined so that a spacing gradually decreases toward a discharging device, the throttle portion being provided between the tower body and the discharging device, and first partitions are provided inside the throttle portion. A second partition extending along the incline direction of the side panel is provided at a predetermined distance from the bottom end of the exit louver above the side panel, and a gap is provided between the bottom end part of the exit louver and the side panel of the throttle portion. | 09-16-2010 |
| 20110274590 | Inverted Exhaust Gas Treatment Injector - An exhaust gas treatment system for reducing emissions from an engine includes an exhaust conduit adapted to supply an exhaust stream from the engine to an exhaust treatment device. The conduit includes an upstream zone, a reduced cross-sectional area zone, and a downstream zone. The upstream and downstream zones are positioned adjacent to and on either side of the reduced cross-sectional area zone. An injector is fixed to the exhaust conduit for injecting a reagent into the exhaust stream at the downstream zone, such that the reagent is injected into the exhaust stream at a venturi effect location of reduced exhaust pressure. The injector is mounted to spray reagent along an injection axis that extends at an angle ranging from 40 to 65 degrees from a longitudinal axis of the conduit. | 11-10-2011 |
| 20120087840 | Apparatus for the Purification of Exhaust Gases containing NOx - An apparatus ( | 04-12-2012 |
| 20120093697 | HONEYCOMB CATALYST BODY AND METHOD FOR MANUFACTURING HONEYCOMB CATALYST BODY - A honeycomb catalyst body includes a honeycomb structure and a catalyst. The honeycomb structure includes a porous honeycomb fired body having at least one cell wall defining a plurality of cells extending along a longitudinal direction of the porous honeycomb fired body. The plurality of cells is provided in parallel with one another. The honeycomb fired body contains silicon carbide particles and a silica layer formed on a surface of each of the silicon carbide particles. The silica layer has a thickness of from about 5 nm to about 100 nm measured by X-ray photoelectron spectroscopy. The catalyst contains at least one of oxide ceramics and zeolite. The catalyst is provided on a surface of the silica layer. An amount of at least one of the oxide ceramics and the zeolite is about 50 g/L or more. | 04-19-2012 |
| 20110280771 | HOLDING SEALING MATERIAL, METHOD FOR ROLLING HOLDING SEALING MATERIAL, AND EXHAUST GAS PURIFYING APPARATUS - A holding sealing material includes a mat including an inorganic fibrous material. In a plan view, the mat has a basic quadrangular shape consisting of long sides extending in a longitudinal direction and short sides substantially perpendicular to the long sides. The mat has a recessed portion at one of the short sides and a projected portion at another of the short sides, whereby the projected and recessed portions should fit to each other when the mat is rolled around a periphery of a member to be wrapped. In a cross-sectional view, the projected portion is a quadrangle and the recessed portion is a gap between two quadrangles. At least one corner portion of the projected portion is cut out on a side of the member to be wrapped or another corner portion of the quadrangle of the projected or recessed portions is cut out. | 11-17-2011 |
| 20110311404 | Thermally Stable Inorganic Fibers For Exhaust Gas Treatment Device Insulating Mat - An insulating mat for an exhaust gas treatment device thermally stable to at least 900° C., wherein the insulating mat contains inorganic fibers uniformly coated with a metal oxide including at least one of aluminum oxide, titanium oxide, zirconium oxide, or mixtures thereof; wherein said fibers are uniformly coated with the metal oxide by precipitating metal hydroxide corresponding to the metal oxide on the fibers, followed by converting the precipitated metal hydroxide to the metal oxide. A method of increasing the thermal stability of inorganic fibers for use in an exhaust gas treatment device insulating mat including the inorganic fibers, including uniformly coating the fibers with a metal oxide of at least one of aluminum oxide, titanium oxide, zirconium oxide or mixtures thereof by a chemical precipitation process. | 12-22-2011 |
| 20110311403 | Use of Microspheres in an Exhaust Gas Treatment Device Mounting Mat - A mounting mat for an exhaust gas treatment device including inorganic fibers, organic binder, high temperature resistant inorganic microspheres, and optionally intumescent material. The exhaust gas treatment device includes a housing, a fragile catalyst support structure resiliently mounted within the housing, and the mounting mat disposed in a gap between the housing and the fragile catalyst support structure. | 12-22-2011 |
| 20120288415 | CATALYST UNIT - A catalyst unit may include a carrier that channels may be formed from a front surface thereof to a rear surface thereof, and plugs that closes the channels that may be formed along an edge portion of the front surface except a central portion of the front surface, wherein a coating layer may be not formed in the channels that the plugs may be disposed and a coating layer may be formed along the remaining opened channels. | 11-15-2012 |
| 20100202935 | PROCESS AND SYSTEM FOR REMOVING HYDROGEN SULFIDE AND MERCAPTANS IN AMMONIA-BASED DESULFURIZATION SYSTEMS - A flue gas desulfurization process and system that utilize ammonia as a reactant, and in which any hydrogen sulfide and/or mercaptans within the ammonia are separated during the desulfurization process so as to prevent their release into the atmosphere. The process and system entail absorbing acidic gases from a flue gas with a scrubbing media containing ammonium sulfate to produce a stream of scrubbed flue gas, collecting the scrubbing media containing the absorbed acidic gases, injecting into the collected scrubbing media a source of ammonia that is laden with hydrogen sulfide and/or mercaptans so that the injected ammonia is absorbed into and reacted with the collected scrubbing media, stripping the hydrogen sulfide and/or mercaptans from the collected scrubbing media by causing the hydrogen sulfide and/or mercaptans to exit the collected scrubbing media as stripped gases, and collecting the stripped gases without allowing the stripped gases to enter the stream of scrubbed flue gas. | 08-12-2010 |
| 20100202934 | EXHAUST GAS PURIFICATION DEVICE FOR AN EXHAUST SYSTEM - An exhaust gas purification device for an exhaust system has a housing that includes an inlet and an outlet, and a gas-permeable substrate. The gas-permeable substrate comprises a hollow body and is arranged in a flow path from the inlet to the outlet. The hollow body is composed of a plurality of flat substrate plates. | 08-12-2010 |
| 20110142723 | Exhaust Gas Purifying Device - An exhaust gas purifying device includes: a case body including a plurality of cases, and heat insulating rings and heat insulators that cover the case body over a substantially-entire area from an upstream side to a downstream side in an exhaust gas flowing direction. The heat insulators are placed inward from joint portions between the cases, and the heat insulating rings are placed in such a manner as to bridge over the joint portions between the cases. With the above arrangement, the surface temperature of the case body can be reliably prevented from becoming high. | 06-16-2011 |
| 20080241006 | EXHAUST GAS PURIFICATION APPARATUS - An exhaust gas purification apparatus can efficiently purify an exhaust gas even when HC contained in the exhaust gas is excessive with a ratio of HC and NOx being substantially different from 1. The apparatus has an oxidation catalyst unit ( | 10-02-2008 |
| 20130136663 | PASS-THROUGH CATALYTIC SUBSTRATE INCLUDING POROUS CERAMIC BEVELED CORNER PORTIONS AND METHODS - A pass-through catalytic substrate can comprise a plurality of porous ceramic substrate walls defining flow channels extending between an inlet end and an outlet end of the catalytic substrate. The pass-through catalytic substrate can include a plurality of porous ceramic beveled corner portions positioned at intersecting corners of the substrate walls within the flow channels. In one example, the porous ceramic beveled corner portions each include a heat capacity less than about 1.38 J/cm | 05-30-2013 |
| 20130149207 | SUBSTRATE MONOLITH COMPRISING SCR CATALYST - A substrate monolith | 06-13-2013 |
