Abstract: The invention relates to a tank device (1) of a motor vehicle for a reductant for the aftertreatment of the exhaust gas of the motor vehicle, comprising a reservoir (5) for the reductant and a tank installation unit (7) having at least one conveying pump (8) for conveying the reductant out of the reservoir (5) to a point of introduction into an exhaust gas tract of the motor vehicle, wherein the tank installation unit (7) has a heating device (12) arranged adjacent to the conveying pump (8), wherein at least one auxiliary heater (29) is provided, and wherein the auxiliary heater (29, 33) is integrated in a wall (25, 27) of the reservoir (5).

Abstract: An exhaust system for a work vehicle includes a selective catalytic reduction (SCR) mixer configured to be disposed within an interior of an SCR housing. The SCR mixer includes a mixer body configured to receive a flow of an exhaust solution that includes a mixture of exhaust and diesel exhaust fluid through an inlet of the mixer body along a longitudinal axis. The SCR mixer also includes multiple outlets disposed only in a central portion of the mixer body. Further, the multiple outlets extend about the longitudinal axis and are configured to direct the flow of the exhaust solution out of the mixer body to the interior of the SCR housing. In addition, the central portion is positioned between the inlet and an end of the mixer body along the longitudinal axis, and extends approximately 70 percent or less of a longitudinal extent of the mixer body.

Abstract: A system for a vehicle includes a water separator and a particulate filter. The vehicle includes an engine that emits exhaust, and the water separator and the particulate filter are disposed downstream of the engine and receives at least a portion of the exhaust. The water separator separates water from the exhaust, and the particulate filter filters particulates of the exhaust such that the water may be subsequently used, e.g., for potable uses, operation of the engine, etc.

Abstract: A system for use in selective catalytic reduction reactor is disclosed. The system may include a catalyst bed and a screen located close to the catalyst bed in a manner so that flow of flue gas to the catalyst bed contacts the screen before it contacts the catalyst bed. The screen may be adapted to support a weight of at least 400 pounds above the catalyst bed so that the weight is not imposed on the catalyst. The screen may have a plurality of holes across its surface in a manner so that the screen is adapted to change the velocity distribution of the flue gas as it flows through the screen.

Abstract: A urea SCR system includes a tank that stores urea water, an injector that injects urea water to exhaust gas, a connection passage that connects the tank and the injector, an electric pump that is arranged at the connection passage and delivers urea water from the tank toward the injector or from the injector toward the tank, and a control device that controls the electric pump and the injector. The control device executes a suction-back operation for driving the electric pump so that urea water contained in the injector is suctioned back to the tank. Further, the control device determines whether or not the injector is stuck closed.

Abstract: An aftertreatment assembly for an internal combustion engine is disclosed. The assembly includes an aftertreatment component with an inlet, and a pipe connection fluidly connected to the inlet. The pipe connection includes an adjustable spherical pipe joint that joins two angularly offset pipe sections, and a slip pipe joint that joins two axially aligned pipe sections and that can adjust a combined length of the two axially aligned pipe sections. The assembly allows for compensating the positional and orientational displacements between an exhaust outlet and the inlet of the aftertreatment assembly.

Abstract: A retention material for a gas processing device including a processing structure and a casing for accommodating the processing structure, the retention material including inorganic fibers and being arranged between the processing structure and the casing, wherein in a test of repeating a cycle of compressing the retention material until a bulk density of the retention material becomes a prescribed compression bulk density, followed by retaining for 10 seconds, and then releasing until a bulk density of the retention material becomes a release bulk density that is smaller by 12% of said prescribed compression bulk density; a release surface pressure of the retention material after repeating the cycle 2500 times and the compression bulk density of the retention material satisfies the relationship, P?17.10×D?1.62 wherein P is the release surface pressure (N/cm2) and D is the compression bulk density (g/cm3).

Abstract: An exhaust system for an internal combustion engine, the exhaust system comprising, a lean NOx trap, a NOx storage and reduction zone on a wall flow monolithic substrate having a pre-coated porosity of 50% or greater, the NOx storage and reduction zone comprising a platinum group metal loaded on one or more first support, the or each first support comprising one or more alkaline earth metal compound, and a selective catalytic reduction zone on a monolithic substrate, the selective catalytic reduction zone comprising copper or iron loaded on a second support, the second support comprising a molecular sieve.

Abstract: Supporting structure having a first side surface and a second, opposite side surface, wherein the supporting structure has an electrical insulation which prevents an electrical current flow from the first side surface to the second side surface; wherein, furthermore, the supporting structure comprises at least one web which bridges or encloses a cross-sectional area, and wherein the supporting structure has a plurality of first pins and second pins which extend on both sides of the cross-sectional area.

Abstract: The invention refers to the use of lubricants in a mounting mat, wherein the mounting mat is made for mounting a pollution control element into a housing, to reduce the cold peak pressure or compression of the mounting mat, the mounting mat comprising: a non-woven mat of inorganic fibers, wherein the lubricants are distributed in the mat, and wherein the lubricants belong to a group consisting of: saturated hydrocarbons (linear and/or branched and/or cyclic, olefinically unsaturated hydrocarbons (linear and/or branched and/or cyclic), fatty alcohols and fatty acids (linear and/or branched and saturated and/or olefinically unsaturated), carboxylic acid esters carbonic acid esters and/or silicone oils and/or organofunctional silanes, silioxanes.

Abstract: A NOx trap catalyst is disclosed. The NOx trap catalyst comprises a noble metal, a NOx storage component, a support, and a first ceria-containing material. The first ceria-containing material is pre-aged prior to incorporation into the NOx trap catalyst, and may have a surface area of less than 80 m2/g. The invention also includes exhaust systems comprising the NOx trap catalyst, and a method for treating exhaust gas utilizing the NOx trap catalyst.

Abstract: The present invention relates to a catalyst that comprises a carrier body with a length L, which extends between a first end face ‘a’ and a second end face ‘b’, and differently composed, catalytically-active material zones A, B, and C arranged on the carrier body, wherein material zone A contains platinum or platinum and palladium with a weight ratio Pt:Pd of ?1 and, starting from end face ‘a’ or starting from end face ‘b’, extends along 70 to 100% of the length L, and material zone B contains palladium or platinum and palladium and, starting from end face ‘b’, extends along a portion of the length L, and material zone C contains SCR-active material and, starting from end face ‘a’, extends along a portion of the length L, wherein material zone C is arranged above material zone A.

Abstract: An exhaust gas purifying device includes a first SCR catalyst converter, an oxidation catalyst converter, a filter section, and a second SCR catalyst converter arranged in series to a flow direction of an exhaust gas. The first SCR catalyst converter includes a pillar-shaped honeycomb structure a cell density of which is from 31 to 78 cells/cm2, a porosity of the partition walls of which is from 50 to 65%, and in which a first SCR catalyst is loaded onto the surfaces of the partition walls and inner portions of pores formed in the partition walls, and an amount of the first SCR catalyst to be loaded onto the surfaces of the partition walls and the inner portions of the pores is from 200 to 500 g/L and an amount of the first SCR catalyst to be loaded onto the inner portions of the pores is from 5 to 80 g/L.

Abstract: A porous ceramic honeycomb body including a substrate of intersecting porous walls forming axial channels extending from a first end face to a second end face. An active portion of the walls include a zeolite catalyst disposed inside pores thereof and/or is comprised of an extruded zeolite and a three way catalyst (TWC) is disposed on wall surfaces of at least a portion of the active portion.

Abstract: There is provided a zeolite which has excellent NOx purifying performance, particularly excellent NOx purifying performance after heat endurance. The zeolite has a CHA structure in which Cu and Ce are carried, and has a Cu/Al molar ratio of 0.25 to 0.48 and a Ce/Al molar ratio of 0.01 to 0.03.

Abstract: An exhaust system, especially for an internal combustion engine of a vehicle, includes an exhaust gas-carrying duct (14) and a reactant injection device (20) for injecting reactant (R) into exhaust gas (A) flowing in the exhaust gas-carrying duct (14). Downstream of the reactant injection device (20), a mixer device (22) supports the mixing of reactant (R) injected by the reactant injection device (20) with exhaust gas (A) flowing in the exhaust gas-carrying duct (14). Downstream of the reactant injection device (20) and upstream of the mixer device (22), a reactant heating device (24) extends in the exhaust gas-carrying duct (14). The exhaust gas (A) flows in and reactant (R) injected through the reactant injection device (20) flow around the heating device (24).

Abstract: A system for use in selective catalytic reduction reactor is disclosed. The system may include a catalyst bed and a screen located close to the catalyst bed in a manner so that flow of flue gas to the catalyst bed contacts the screen before it contacts the catalyst bed. The screen may be adapted to support a weight of at least 400 pounds above the catalyst bed so that the weight is not imposed on the catalyst. The screen may have a plurality of holes across its surface in a manner so that the screen is adapted to change the velocity distribution of the flue gas as it flows through the screen.

Abstract: An apparatus for aftertreatment of exhaust gas includes a housing an exhaust inlet, a first flow guide to guide at least part of exhaust gas to a first direction to form a first direction flow, and a reactant inlet for dispensing reactant to the first direction flow in an inner cavity to mix with the exhaust gas to provide a mixed exhaust gas. A second flow guide guides at least a part of the first direction flow to a second direction to form a second direction flow opposite to the first direction, and guide the second direction flow to a third direction to form a third direction flow downstream to the second direction and parallel to the first direction. An exhaust outlet exits output exhaust gas from the inner cavity; mixing of the reactant and the exhaust gas occurring within the first, second and third direction flow.

Abstract: A heat insulating structure for an exhaust junction pipe to be disposed in an area in which exhaust gas passages having different respective lengths are merged together comprises a first heat insulation portion that covers and provides heat insulation for at least a portion of one branch part of branch parts that are branched in the exhaust junction pipe; the one branch part forms one exhaust gas passage in a not-yet-merged state of the exhaust gas passages, and forms the one exhaust gas passage having a short length.

Abstract: An exhaust system is for a marine propulsion device having an internal combustion engine. A catalyst housing has a housing inlet end that receives an exhaust gas flow from the internal combustion engine into the catalyst housing and an opposite, housing outlet end that discharges the exhaust flow out of the catalyst housing. A catalyst is disposed in the catalyst housing. The catalyst has a catalyst inlet end that receives the exhaust gas flow and an opposite, catalyst outlet end that discharges the exhaust gas flow. A catalyst mantel is on an outer periphery of the catalyst. The catalyst mantel has a mantel inlet end and an opposite, mantel outlet end. A radial flange is on at least one of the mantel outlet end and mantel inlet end. A connector mates with an inner diameter of the catalyst housing. The radially extending flange of the catalyst mantel is axially sandwiched between the connector and a radially inner shoulder of the catalyst housing.