Abstract: An exhaust purification device purifies an exhaust gas exhausted from an internal combustion engine. The exhaust purification device has a three-way catalytic agent that is located in an exhaust passage of the internal combustion engine and a particulate filter that is located downstream of the three-way catalytic agent in the exhaust passage and that collects an exhaust particulate. The particulate filter is provided with cells that includes sealed-inlet cells of which upstream ends are sealed and through cells through which an upstream side and a downstream side of the particulate filter communicate with each other. The particulate filter is arranged at a location where a temperature of the exhaust gas reaching an upstream end of the particulate filter is higher than or equal to a combustion temperature of the exhaust particulate, when the three-way catalytic agent is in an active state and when the internal combustion engine is operated.

Abstract: The exhaust gas purification apparatus is provided with: an upstream catalyst section which is disposed on the upstream side of an exhaust pipe; a downstream catalyst section which is disposed on the downstream side of the exhaust pipe with respect to the upstream catalyst section; and reducing agent solution supplier that supplies a reducing agent solution for generating ammonia from the upstream of the upstream catalyst section. The upstream catalyst section and the downstream catalyst section each include a SCR catalyst constituted by a zeolite, which adsorbs ammonia and reduces NOx in the exhaust gas. The skeleton density (A) of the SCR catalyst included in the upstream catalyst section is less than the skeleton density (B) of the SCR catalyst included in the downstream catalyst section (A<B).

Abstract: An exhaust gas purification device is equipped with: an NOx purification unit disposed in exhaust gas piping of an engine supporting an NOx storage catalyst (NSC); a catalyzed soot filter (CSF) disposed downstream of the NOx purification unit supporting a particulate combustion catalyst causing captured particulates to combust; and an electronic control unit (ECU) which controls exhaust gas flowing into the NSC to be rich and which, by raising the temperature of the NSC, acts as a regeneration device that causes sulfur components captured in the NSC to be desorbed. The particulate combustion catalyst is provided where Ag and Pd have been alloyed on an Al2O3 carrier; the quantity of Ag supported by the Al2O3 carrier is 1.2-2.5 g/L; the quantity of Pd supported by the Al2O3 carrier is 0.7 g/L or less; and the ratio Ag/Pd of the Ag support quantity to the Pd support quantity is 1.7-8.3.

Abstract: A three-way catalyst is disclosed. The three-way catalyst comprises a silver-containing extruded zeolite substrate and a catalyst layer disposed on the silver-containing extruded zeolite substrate. The catalyst layer comprises a supported platinum group metal catalyst comprising one or more platinum group metals and one or more inorganic oxide carriers. The invention also includes an exhaust system comprising the three-way catalyst. The three-way catalyst results in improved hydrocarbon storage and conversion, in particular during the cold start period.

Abstract: The aftertreatment device has a casing (10), which has an inlet opening (12) for the inflow of the exhaust gas, an outlet opening (14) for the outflow of the exhaust gas and a feed hole (16) for dispensing reactive substance to the casing. The reactive substance can be for example fuel, ammonium or urea/water solution. As an extension of the outlet opening there is a mixing tube (18) directed outwards from the casing for mixing the exhaust gas and the reactive substance. Inside the casing there is a feeding channel (20) for guiding the exhaust gas to the mixing tube. The feeding channel has an open first end extending to the outlet opening, the cross-sectional area of which first end is smaller than the cross-sectional area of the outlet opening. The wall (22) of the feeding channel has holes (24) for the inflow of the exhaust gas. Preferably, the wall of the feeding channel has at least along a part of its length a conical shape.

Abstract: The honeycomb type heating device includes: a pillar-shaped honeycomb substrate which includes a porous partition wall defining a plurality of cells extending from one end face to the other end face and a circumferential wall surrounding the partition wall; and a plurality of heaters which are disposed adjacently in a circumferential direction of an outer circumferential face that is an outer surface of the circumferential wall, on the outer circumferential face. Each heater is a resistance heating heater which radiates heat by a current supplied thereto, each heater comes into face-contact with the outer circumferential face, and a ratio of a total area of a portion covered by the heaters of the outer circumferential face with respect to the entire area of the outer circumferential face is 50 to 100%.

Abstract: An apparatus for purifying waste gases for an integrated semiconductor is provided, which includes a cover including a burner mounted thereon to generate a flame and a plurality of waste gas inlet pipes formed on a circumference of the burner to make waste gases flow therethrough; a reactor including upper and lower openings formed thereon so that the cover is detachably coupled to the upper opening, a converging member tapered to have a smaller diameter as going toward a lower portion thereof, and a transport pipe vertically arranged to communicate with an apex of the converging member, in which a water curtain is formed to prevent accumulation of by-products, to burn and discharge the inflow waste gases; and a cleaning portion integrally formed in the reactor to water-clean the burnt waste gases that are discharged into the reactor after passing through the transport pipe to collect particles. Since the burner, the reactor, and the scrubber are integrally formed in a body.

Abstract: An exhaust-gas mixing pipe for admixing additive into an exhaust-gas stream of a combustion engine. The housing wall has multiple rows, arranged over a circumference U, of openings through which gas can flow into the interior of the pipe, wherein the at least one opening of a row forms in each case one stage M characterized according to its size by the average opening cross section Q of the openings, wherein the sum of all the opening cross sections Q of all the openings of all the rows of the exhaust-gas mixing pipe is equal to SQ. In that context, at least one first-order stage M1, is provided, wherein stage M1 has openings having an average opening cross section Q1. At least one second-order stage M2, is provided, with openings having an average opening cross section Q2, where Q2>=f Q1, where 5<=f<=25.

Abstract: The exhaust gas purification system includes a SCR, an NOx sensor which is provided on a downstream side of the SCR, and an NOx purifying controller which controls an amount of urea water being ejected to the SCR and performs an abnormality diagnosis based on a detection value of the NOx sensor, wherein the exhaust gas purification system includes an exhaust gas temperature sensor which acquires temperature of the exhaust gas flowing into the SCR, a temperature increasing rate calculating unit which calculates a temperature increasing rate at which the exhaust gas temperature acquired by the exhaust gas temperature sensor reaches a second temperature from a predetermined first temperature, and a prohibiting unit which prohibits abnormality diagnosis by the NOx purifying controller in a case in which the temperature increasing rate calculated by the temperature increasing rate calculating unit is higher than a predetermined determination threshold value.

Abstract: An exhaust gas purifying device includes a honeycomb catalyst body, a plugged honeycomb structure and a can member to receive therein the honeycomb catalyst body and the plugged honeycomb structure, and the plugged honeycomb structure disposed at a position on a downstream side of the honeycomb catalyst body is designed so that a pressure loss in an end face central region of at least one of a second inflow side end face and a second outflow side end face of a second honeycomb substrate is larger than a pressure loss of an end face circumferential region positioned around the end face central region.

Abstract: The present invention relates to a mounting mat for mounting a pollution control device in a catalytic converter, the mounting mat comprising a non-woven mat of inorganic fibers having distributed therein inorganic particles having an average diameter of 1 nm to 100 nm and wherein the mounting mat is free of organic binder or contains organic binder in an amount of not more than 5% by weight, based on the total weight of the mounting mat. The invention further relates to a pollution control device including the mounting mat and to a method of making the mounting mat.

Abstract: An apparatus comprises a housing comprising a housing first portion and a housing second portion. The housing first portion comprises a first joint portion overlapping a second joint portion of the housing second portion so as to form a housing joint. A clamp is positioned on the housing joint and comprises a base portion. A first surface of the base portion is positioned on the housing joint. A plurality of legs extend from the base portion towards the housing each of which are spaced from each other around the housing joint. A plurality of flange segments extend from each side of the base portion away from the housing. A band is positioned on a second surface of the base portion opposite the first surface and around the clamp. The band is positioned between the plurality of flange segments and operatively coupled to the housing via the clamp.

Abstract: A catalytic converter apparatus for use in an exhaust system of an internal combustion engine includes a housing having a gas inlet and a gas outlet, and at least one catalytic substrate element disposed in the housing. The at least one substrate element is divided into a plurality of zones or sections, the zones at least partially separated from one another to inhibit heat flow. The zones can be at least partially separated with walls. The walls can include insulating material for reducing the mobility of heat radially outwardly. Each of the zones defines a generally separate flow passage connecting the inlet and outlet in fluid communication. The apparatus can heat more rapidly from a cold start compared with conventional catalytic converters.

Abstract: A mixer for an emissions cleaning module is provided. The mixer having an elongate body configured for location within a flowhood and a downstream conduit of an emissions cleaning module. A plurality of apertures are included in the mixer and configured to permit passage of exhaust gas therethrough, to promote mixing, in use of an injected additive and a flow of exhaust gas. An emissions cleaning module including such a mixer is also described.

Abstract: An apparatus may have a selective catalytic reduction NOx catalyst including a high-temperature catalyst layer having high capability of reducing NOx at high temperatures and a low-temperature catalyst layer having higher capability of reducing NOx at low temperatures than that of the high-temperature catalyst layer. The low-temperature catalyst layer may be arranged closer to a catalyst substrate than the high-temperature catalyst layer. A supply valve may add an addition quantity of reducing agent for reducing NOx to exhaust gas flowing into the selective catalytic reduction NOx catalyst. A controller may comprise at least one processor configured to control addition of the reducing agent by the supply valve such that the reducing agent concentration in a reducing agent atmosphere formed in the exhaust gas flowing into the selective catalytic reduction NOx catalyst is higher when the temperature of the selective catalytic reduction NOx catalyst is in a specific low temperature range.

Abstract: A honeycomb filter, wherein when a thermal expansion coefficient at 300 to 600° C. of a material constituting a honeycomb substrate is indicated by A (×10?6/° C.), the four-point bending strength of the material constituting the honeycomb substrate is indicated by B (MPa), the thickness of a thinnest portion in a portion partitioning outlet plugging cells of a partition wall 1 is indicated by t (mm), the thickness of a portion partitioning an outlet plugging cell and an inlet plugging cell of the partition wall is indicated by WT (mm), and the distance between the center of the outlet plugging cell and the center of the inlet plugging cell adjacent to each other is indicated by CP (mm), a relation of the following equation (1) is satisfied. 0.714×WT+0.160?t/CP?0.163×A/B+0.

Abstract: The catalytic converter apparatus has at least one element box which extends in a longitudinal direction and which has a first pair of first side walls which lie opposite one another, and a second pair of second side walls which lie opposite one another, and two open end sides which lie opposite one another in the longitudinal direction. A plurality of catalytic converter plates are arranged in the element box, which catalytic converter plates are oriented parallel to the first side walls, merely one part of the side walls having a rail which extends transversely with respect to the longitudinal direction on at least one of the end sides, on which rail the catalytic converter plates are supported. As a result, the flow properties of the element box are improved and the risk of dust deposits is avoided.

Abstract: There are disclosed an information-display-equipped electric-heating-type heater, and a method of using the above information. An information-display-equipped electric-heating-type heater includes a tubular honeycomb structure made of a conductive material and having porous partition walls to define and form a plurality of cells which become through channels for a fluid and extend from one end face to the other end face, and a circumferential wall positioned in an outermost circumference; and a pair of electrodes disposed on the circumferential wall of the honeycomb structure, and information concerning a heater performance of the electric-heating-type heater is displayed in the honeycomb structure.

Abstract: The present invention relates to a denitration and waste heat recovery integrated furnace, comprising a denitration system, a desulfurization system and a waste heat recovery system. An air outlet of the denitration system is connected to an inlet of a dust collector (4), an outlet of the dust collector (4) is connected to an air inlet of the desulfurization system, an air outlet of the desulfurization system is connected to an air compressor (6) of the waste heat recovery system, and the waste heat recovered by the air compressor (6) is used for heat energy utilization of other departments.

Abstract: An electrically-heated catalytic converter includes: a substrate made of ceramic, the substrate including a catalyst coated layer; electrode films made of ceramic, the electrode films being disposed on a surface of the substrate; electrode terminals made of ceramic, each of the electrode terminals being secured to a corresponding one of the electrode films; and external electrodes each attached to a corresponding one of the electrode terminals via a brazing filler metal. A thermal expansion coefficient of the brazing filler metal is equal to or higher than a thermal expansion coefficient of the electrode terminals, and is equal to or lower than a thermal expansion coefficient of the external electrodes. The thermal expansion coefficient of each of the electrode terminals decreases from a portion at which the electrode terminal is joined to the brazing filler metal toward a portion at which the electrode terminal is joined to the corresponding electrode film.