Provided is an exhaust gas purification catalyst body that can improve exhaust gas purification performance while maintaining favorable PM collection performance. The exhaust gas purification catalyst body includes a base of a wall flow structure having an inlet side cell, an outlet side cell, and porous partition wall, and a catalyst layer that is formed in the partition wall that is in contact with the inlet side cell or the outlet side cell. The catalyst layer is formed in a region of at least 50% of the thickness of the partition wall from a surface of the partition wall, and held on the surface of internal pores in the partition wall in the region.

Provided is an exhaust gas purification catalyst body that can improve exhaust gas purification performance while maintaining favorable PM collection performance. The exhaust gas purification catalyst body includes a base of a wall flow structure having an inlet side cell, an outlet side cell, and porous partition wall, and a catalyst layer that is formed in the partition wall that is in contact with the inlet side cell or the outlet side cell. The catalyst layer is formed in a region of at least 50% of the thickness of the partition wall from a surface of the partition wall, and held on the surface of internal pores in the partition wall in the region.

An emissions control substrate. The emissions control substrate includes a first end in receipt of exhaust from an engine, and a second end from which exhaust exits the substrate. The second end is opposite to the first end. A plurality of channels are defined by sidewalls. The channels are arranged between the first end and the second end to direct exhaust from the engine through the emissions control substrate. The sidewalls at least one of filter and treat exhaust particulates as the exhaust passes through the sidewalls. The plurality of channels include at least one first channel defined by sidewalls that curve inward along lengths thereof from the first end to the second end.

An exhaust gas purification system including an exhaust pipe having a hollow longitudinal portion. The hollow longitudinal portion has an inner surface which defines a cavity, and there is also a plurality of steel rods mounted along a length of the hollow longitudinal portion and inside the cavity. The plurality of steel rods are coated with a slurry of a catalytic composition having a tectosilicate having titanium, one or more raw material having magnetic properties, and an acrylic oil.

An emissions control substrate. The emissions control substrate includes a first end in receipt of exhaust from an engine, and a second end from which exhaust exits the substrate. The second end is opposite to the first end. A plurality of channels are defined by sidewalls. The channels are arranged between the first end and the second end to direct exhaust from the engine through the emissions control substrate. The sidewalls at least one of filter and treat exhaust particulates as the exhaust passes through the sidewalls. The plurality of channels include at least one first channel defined by sidewalls that curve inward along lengths thereof from the first end to the second end.

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.

A catalytic converter substrate comprising a plurality of micro-structured hollow ceramic tubes, each tube having an inside surface and an outside surface, the inside surface having openings to micro-channels distributed radially throughout the tube cross-section, the micro-channels extending from the openings in the inside surface towards the outside surface.

A device includes a pipeline section for an exhaust gas flow. The pipeline section has an inlet end, an outlet end, a rectilinear section and a protuberance having an opening for installing a metering device for a liquid additive (in particular urea/water solution) in the rectilinear section. The protuberance has a height and an extent and the extent is at least twice as large as the height. At least one respective disk-shaped honeycomb body is disposed at each of the inlet end and the outlet end. A central axis of the opening is oriented toward one of the disk-shaped honeycomb bodies. A motor vehicle having the device is also provided.

An exhaust gas system for an internal combustion engine includes an exhaust gas treatment unit, an exhaust gas guide conducting exhaust gas to the exhaust gas treatment unit and a reactant discharge unit for the discharge of reactant into the exhaust gas guide. The exhaust gas guide includes an outer pipe and an inner pipe in a longitudinal region between the reactant discharge unit and the exhaust gas treatment unit. An external volume through which exhaust gas can flow and an internal volume through which exhaust gas can flow in the inner pipe are provided.