Techniques are disclosed to aid fixing of an elongate wire within an elongate, linear cell of a honeycomb ceramic substrate unit for a gaseous emissions treatment assembly. In one method, the wire is formed with a resiliently flexible element, and inserted into the cell, the insertion act causing the resiliently flexible element to flex and to cause a part of the element to bear against a wall of the cell and so provide frictional retention of the wire in the cell. In another, method, an adhesive is used either on the outside of the wire or the inside of the cell. In another method, the wire is scored at spaced intervals along its length to provide relief spaces for linear expansion of the wire to reduce stress at its interface with cell walls.

A particulate matter detection device includes a sensor element and a detection control unit. The sensor element includes a particulate matter detection unit and a temperature compensation unit. The particulate matter detection unit includes a pair of detection electrodes on a deposition surface of a detection conductive layer. The temperature compensation unit includes a pair of temperature compensation electrodes on a non-deposition surface of a temperature compensation conductive layer. The detection electrodes and the temperature compensation electrodes are connected to a common ground terminal. The detection control unit detects a first output signal based on an electrical resistance between the detection electrodes and detects a second output signal based on an electrical resistance between the temperature compensation electrodes, and calculates a deposition amount of particulate matter on the basis of a differential output between the first output signal and the second output signal.

Systems and methods of the present invention related to an exhaust gas purification system comprising: (a) a first injector for injecting ammonia or a compound decomposable to ammonia into the exhaust gas; (b) a diesel particulate filter including an inlet and an outlet, wherein the filter includes a selective catalyst reduction (SCR) catalyst and an oxidation catalyst; (c) a second injector for injecting ammonia or a compound decomposable to ammonia into the exhaust gas, located downstream of the filter; and (d) a downstream catalyst comprising a selective catalytic reduction catalyst, located downstream of the second injector.

A connector includes a thermally conductive body defining a passage for a fluid to flow through a duct and configured with an electric heating apparatus situated around the passage. A clip is situated around a portion of the body including one or more snap-in receptacles situated peripherally with respect to the body and configured to fit an electric connection of the electric heating apparatus.

A composite structure comprises a cover plate and a plate-like fiber layer, one side of the plate-like fiber layer being fastened to one side of the cover plate with a solder at contact points of fibers of the plate-like fiber layer and the cover plate. Contacting fibers of the plate-like fiber layer are connected to each other with the solder in the plate-like fiber layer. A vehicle having a composite structure and a method of manufacturing a composite structure are furthermore disclosed.

A holding material for a pollution control element which can sufficiently suppress scattering of inorganic fibers when the pollution control element is assembled in a casing, and which has a sufficiently high coefficient of friction. The holding material includes: a sheet-like main body made of first inorganic fibers having a minor axis in the range of from about 3 to 10 m; and a surface layer which is provided on at least one surface of the main body and contains second inorganic fibers having a minor axis in the range of from about 1 to 15 nm.

The present disclosure is directed to compositions for use in oxygen capture applications, for example in three-way catalysts (TWC) systems. In some embodiments, the compositions comprise composites of aggregated and/or fused primary particles, the aggregated and/or fused primary particles collectively having the formulae [MnO.sub.x].sub.y:[La.sub.zMnO.sub.3].sub.1y; wherein x is in a range from about 1 to 2.5; y is in a range from about 1 to about 30 wt %, or from about 1 to about 20 wt % or from about 2-10 wt % or from about 2 to about 5 wt %; and z is about 0.7 to about 1.1; and the La.sub.zMnO.sub.3 is a crystalline perovskite phase; the aggregated and/or fused primary particles of the composite having a mean surface area in a range of from about 25 to about 60 m.sup.2/g, preferably from about 27 to about 45 m.sup.2/g. In preferred embodiments, these compositions further comprise low levels of at least one platinum group metal (PGM), preferably Pd.

A method for operating a particle filter of a vehicle includes creating an ash to be introduced into a filter body of the particle filter by arranging a carrier material of an ash former on an input side of an end face of the filter body, as viewed in a flow direction of an exhaust gas through the particle filter, and combusting the carrier material, where a non-combustible constituent of the ash former is arranged on the carrier material. The created ash is then introduced into the filter body of the particle filter.

A close-coupled catalytic article, and its use in an exhaust system for internal combustion engines, is disclosed. The close-coupled catalytic article for the treatment of an exhaust gas comprising: an upstream substrate and a downstream substrate, wherein the upstream substrate is spaced apart from the downstream substrate, wherein the upstream substrate comprises a first three-way catalyst (TWC) composition and the downstream substrate comprises a second TWC composition, the first and second TWC compositions each comprising an oxygen storage component (OSC), wherein a loading of the OSC in the downstream substrate is greater than a loading of the OSC in the upstream substrate and is at least 2.2 g/in.sup.3.

An improved NO.sub.x sensor with an NH.sub.3 oxidation. A sensor module may include a support component, a NO.sub.x sensing material positioned on the support component, and an NH.sub.3 oxidation catalyst. The NH.sub.3 oxidation catalyst may be layered on top of the NO.sub.x sensing material or the NH.sub.3 oxidation catalyst may be positioned upstream of the NO.sub.x sensing material such that the NH.sub.3 oxidation catalyst selectively converts NH.sub.3 to N.sub.2 while permitting NO.sub.x through to the NO.sub.x sensing material.