An electrically regeneratable filter element comprises at least two flanks, each of these flanks comprising a stiff material layer. Each of these flanks has at least one thermally and electrically insulated side. The filter element comprises further a metal fiber fleece being pleated according to pleating lines providing an edge with pleat openings. The metal fiber fleece is mounted between the flanks, in such a way that the thermally and electrically insulated sides make contact with the edge, meanwhile these sides closing the pleat openings.

A support for an electric heating type catalyst comprises: a honeycomb structure having partition walls that define a plurality of cells, each of cells extending from one end face to other end face to form a fluid path for a fluid; and a pair of electrode layers formed on a side surface of the honeycomb structure, the pair of electrode layers being arranged so as to face each other across a center of the honeycomb structure. The pair of electrode layers is electrically connected to the honeycomb structure. The honeycomb structure side of each of the electrode layers comprises a portion having a thermal expansion coefficient lower than that of the honeycomb structure.

A support for an electric heating type catalyst comprises: a honeycomb structure having partition walls that define a plurality of cells, each of cells extending from one end face to other end face to form a fluid path for a fluid; and a pair of electrode layers formed on a side surface of the honeycomb structure, the pair of electrode layers being arranged so as to face each other across a center of the honeycomb structure. The pair of electrode layers is electrically connected to the honeycomb structure. The honeycomb structure side of each of the electrode layers comprises a portion having a thermal expansion coefficient lower than that of the honeycomb structure.

A sound generation assembly unit, for an exhaust system of an internal combustion engine, includes a sound generation module (16) with a sound generation module housing to be arranged at an exhaust gas guide element (12) of the exhaust system (14). At least one loudspeaker unit (20) is arranged in the sound generation module housing (18). A rear volume module (30) includes a rear volume module housing (32) and a rear volume (34) formed in the rear volume module housing (32). The rear volume module housing (32) is connected or can be connected to the sound generation module housing (18) for the acoustic coupling of the rear volume (34) to the at least one loudspeaker unit (20).

A mount (100) for an exhaust system includes a support (110) configured for being fixed to a component of the exhaust system (200) or an underbody of a vehicle, and a mounting mandrel supported by the support (110). The support (110) has a first plate (111) and a second plate (112) spaced apart from the first plate (111). The first plate (111) and the second plate (112) each include a fixing section (113, 114) for fixing the support (110) to a component of the exhaust system (200) or an underbody of a vehicle. The first plate (111) and the second plate (112) each includes an opening (115, 116). The mounting mandrel (120) includes a first section (121) configured for penetrating through an exhaust system rubber (300). The mounting mandrel (120) has a second section (122) that passes through the openings (115, 116) in the first and second plates (111, 112).

An exhaust gas pressure tube assembly and a method for making the tube are disclosed. The assembly includes a keyed washer having a concave conical opening and an exhaust gas pressure tube having an open end for attachment to the boss. The assembly method includes positioning the washer adjacent the boss attachment open end of the pressure tube such that the concave conical opening of the washer faces the open end. A tool is positioned against a washer side and a mandrel having a conical outer surface is then inserted into the open end, causing the open end to be flared against the opening of the washer. The surface of the concave conical opening of the washer may be either smooth or knurled. If the surface is smooth, the mandrel is retained in its flaring position and a brazing or similar procedure to form a strong and gas-tight seal.

A method for coating an internal surface of a component including preparing the internal surface, coating with chemical deposition fluid and curing the coating, is provided. The method includes flushing the internal surface with a supercritical fluid, for preparing the internal surface. The method further includes flushing the internal surface with a chemical deposition fluid such the chemical deposition fluid creates a coating on the internal surface. The method further includes curing the coating with an infrared heat source.

A manifold system for an internal combustion engine, comprising a housing designed as a collecting manifold, which housing has two inlet openings and an outlet opening for connecting two outlets of an internal combustion engine to an exhaust gas system in regard to flow and at least one connection opening provided on the housing for connecting to an outer shell of a double-shell air-gap-insulated manifold, and comprising at least one air-gap-insulated manifold connected to the connection opening, which air-gap-insulated manifold has an inner shell having an inlet opening for connecting to an outlet of the internal combustion engine in regard to flow and having an outer shell, wherein all air-gap-insulated manifolds are completely formed from sheet metal and are structurally or geometrically identical and, on the housing, the size of a distance A2 between one of the two inlet openings and the outlet opening is between 30 mm and 300 mm or between 50 mm and 120 mm.

A mount (100) for an exhaust system includes a support (110) configured for being fixed to a component of the exhaust system (200) or an underbody of a vehicle, and a mounting mandrel supported by the support (110). The support (110) has a first plate (111) and a second plate (112) spaced apart from the first plate (111). The first plate (111) and the second plate (112) each include a fixing section (113, 114) for fixing the support (110) to a component of the exhaust system (200) or an underbody of a vehicle. The first plate (111) and the second plate (112) each includes an opening (115, 116). The mounting mandrel (120) includes a first section (121) configured for penetrating through an exhaust system rubber (300). The mounting mandrel (120) has a second section (122) that passes through the openings (115, 116) in the first and second plates (111, 112).