Abstract: An exhaust gas treatment arrangement for an exhaust gas system of an internal combustion engine includes a housing which is elongated in the direction of a housing longitudinal axis, and at least one exhaust gas treatment unit which is arranged in the housing and has a shell. At least one bearing/sealing unit with at least two bearing/sealing rings is arranged in a radial intermediate space formed between the shell and the housing. The at least two bearing/sealing rings follow one another radially, are nested inside one another and are each interrupted in a circumferential interruption region. The circumferential interruption region of at least one of the bearing/sealing rings is offset in the circumferential direction with respect to a circumferential interruption region of another one of the bearing/sealing rings.

Abstract: A mixing subassembly for an exhaust gas system of an internal combustion engine for mixing exhaust gas, which is discharged by an internal combustion engine, with reactant includes a mixing path which extends in the direction of a mixing path longitudinal axis and which has an upstream mixing path inflow region for receiving exhaust gas and/or reactant in the mixing path. The mixing path includes a core flow channel, through which a first exhaust gas partial flow flows, and a bypass flow channel, through which a second exhaust gas partial flow flows. At least one flow blocking element reduces a flow cross section of the bypass flow channel and is arranged in the bypass flow channel.

Abstract: A compression jaw assembly unit for a compressing device for compressing tubular metal parts includes a compression jaw carrier (17) and a compression jaw (16), provided at the compression jaw carrier (17), with a compressing surface (18) that is oriented essentially facing away from the compression jaw carrier (17) and is curved transversely to a compression jaw longitudinal direction (LB) in a compression jaw transverse direction (QB). The compression jaw (16) includes a fixed compression jaw segment (22), which is fixed to the compression jaw carrier (17) and provides a compressing surface segment (24), and at least one movable compression jaw segment (26, 28) providing a compressing surface segment (30, 32). The at least one movable compressing surface segment (26, 28) can be moved in a direction of movement (B) in relation to the fixed compressing surface segment (22) against the prestressing action of a prestressing device (42).

Abstract: An exhaust gas treatment arrangement for an exhaust gas system of an internal combustion engine includes a first exhaust gas flow path leading from an exhaust gas inlet provided on a housing to an exhaust gas outlet provided on the housing and a second exhaust gas flow path leading from the exhaust gas inlet to the exhaust gas outlet. The second exhaust gas flow path is separate from the first exhaust gas flow path. A flow path switching unit changes the exhaust gas stream parts, which are conducted in the first exhaust gas flow path and the second exhaust gas flow path. A reactant supply device supplies reactant into the second exhaust gas flow path downstream of the exhaust gas inlet and an SCR catalyst arrangement is provided in the second exhaust gas flow path upstream of the exhaust gas outlet.

Abstract: A connection unit for connecting an electrical supply line to an exhaust gas heater of an exhaust system of an internal combustion engine includes an electrically conductive connection element. The connection element has a heater connection region in a first end region and a supply line connection region in a second end region. A carrier has a receiving opening, wherein the connection element is arranged and has a support region. A first insulating element is arranged in the opening and surrounds the support region. A second insulating element is arranged on a first end face of the carrier. The connection element is supported with respect to the first end face via the second insulating element. A third insulating element is arranged on a second end face of the carrier. The connection element is supported with respect to this second end face via the third insulating element.

Abstract: A heating conductor for an exhaust gas heating arrangement for an exhaust gas system for an internal combustion engine includes a plurality of heating conductor sections. At least one throughflow opening, preferably a plurality of throughflow openings through which exhaust gas can flow, is or are provided in at least one heating conductor section, preferably in a plurality of heating conductor sections or in each heating conductor section.

Abstract: An exhaust gas heater for an exhaust gas system of an internal combustion engine includes a carrier arrangement and a heat conductor arrangement which is carried on the carrier arrangement and which has at least one heat conductor through which current flows. At least one heat conductor is carried with respect to the carrier arrangement via at least one carrier arrangement support unit in an electrically insulated manner. At least one carrier arrangement support unit includes a carrier arrangement support element having a curved support face.

Abstract: An exhaust gas heater for an exhaust gas system of an internal combustion engine includes a carrier arrangement and a heating conductor arrangement. The heating conductor arrangement is carried on the carrier arrangement and exhaust gas can flow therethrough in a main exhaust gas flow direction. The heating conductor arrangement includes at least two heating conductors arranged following one another in the main exhaust gas flow direction. The carrier arrangement includes at least one carrier element having a fixing region lying radially on the outside relative to an exhaust gas heater center axis and is configured for fixing to an exhaust gas guidance housing. The fixing region at least partially does not radially overlap a radially outer lying conductor region of at least one heating conductor of the heating conductor arrangement in at least one, preferably several circumferential regions.

Abstract: A sheathing arrangement for an exhaust system of an internal combustion engine includes at least one sheathing element (18) with a sheathing element shell (19). On an inner side (30) of the sheathing element shell (19) insulation material (38) overlaps the inner side (30) in at least some areas. The inner side is to be positioned facing toward a component of an exhaust system (10), which component is to be sheathed. The insulation material (38) is fixed to the sheathing element shell (19) by means of at least one fastening element (40) passing through the sheathing element shell (19) and the insulation material (38).

Abstract: An exhaust gas heater for an exhaust gas system of an internal combustion engine includes a carrier arrangement, a heating-conductor arrangement, carried on the carrier arrangement and having at least one heating conductor through which a current flows with at least one heating conductor being carried in an electrically insulated manner with respect to the carrier arrangement by at least one carrier-element supporting unit and/or with at least one heating conductor being carried in an electrically insulated manner with respect to a further heating conductor by at least one heating-conductor supporting unit. A connecting arrangement securely connects the heating-conductor arrangement to the carrier arrangement and also a length-compensating arrangement for compensating for different thermal expansions of components of the exhaust gas heater.

Abstract: A silencer for an exhaust gas system of an internal combustion engine includes a silencer housing which surrounds a silencer interior and which has at least two housing portions which are adjacent to each other in an abutment region. The two housing portions are connected to each other. The silencer housing has at least one housing opening formed therein and an outlet pipe extends through the silencer housing in the region of the housing opening. The housing opening is completely formed in one of the two housing portions.

Abstract: An exhaust-gas guiding housing for an exhaust-gas system of an internal combustion engine includes an air inlet housing part through which exhaust gas can flow in an exhaust-gas main flow direction and which has a housing wall surrounding a housing longitudinal axis. At least one air inlet opening is provided in at least one air inlet peripheral region of the housing wall. An inner wall is provided at an inner side of the air inlet housing part, which inner wall, together with the housing wall, defines an air inlet chamber. The at least one air inlet opening is open to the air inlet chamber. At least one air passage opening is provided in the inner wall, and/or at least one air passage opening is formed between the inner wall and the housing wall.

Abstract: An exhaust gas heater for an exhaust gas system of an internal combustion engine includes a carrier arrangement, a heating conductor arrangement which is supported on the carrier arrangement and has at least one current-carrying heating conductor, and a connecting arrangement for the fixed connection of the heating conductor arrangement to the carrier arrangement. The heating conductor arrangement is supported on the carrier arrangement in an electrically insulated manner via the connecting arrangement. The connecting arrangement includes a plurality of connecting elements, the heating conductor arrangement being supported on at least one connecting element via an insulating carrier unit in an electrically insulated manner with regard to the at least one connecting element.

Abstract: An exhaust gas treatment assembly includes a housing and an exhaust gas treatment section accommodating chamber in the housing for accommodating an exhaust gas treatment section therein so as to permit the treatment section to be removed from the housing. An exhaust gas supply duct leads to the housing and is open to the housing via a housing inlet region. A main mixing section accommodating chamber accommodates a main mixing section in such a way that the main mixing section can be removed from the housing. A first exhaust gas treatment section inlet region is open to the housing inlet region to receive exhaust gas from the exhaust gas supply duct. A first exhaust gas treatment section outlet region is open to a main mixing section exhaust gas inlet region of the main mixing section.

Abstract: A method welds together two components of an internal combustion engine exhaust system, by resistance welding, to provide greater positioning freedom of two components welded together. A first component is provided with a welding area including an insertion opening edge surrounding an insertion opening. A second component is provided with a welding area including an insertion area to be inserted into the insertion opening. The insertion area is inserted into the insertion opening such that the insertion area is in contact with the first the entire insertion opening edge. An electrical voltage is applied to resistance weld the first component to the second component. The surface (28) of the insertion area is curved about two axes that are not parallel or is curved about an axis that is parallel to the surface of the insertion area, or/and an insertion surface of the insertion opening edge is located in one plane.

Abstract: An exhaust gas treatment assembly for an exhaust gas system of an internal combustion engine includes a housing defining a longitudinal axis. A first exhaust gas treatment unit is inserted in the housing and has a first casing and at least one first exhaust gas treatment unit carried in the first casing. A second exhaust gas treatment unit is inserted in the housing and has a second casing and at least one second exhaust gas treatment unit carried therein. A locking arrangement is for locking a first exhaust gas treatment unit in the housing at least against movement in the direction of the longitudinal axis in a locked state, wherein, when the first exhaust gas treatment unit and the second exhaust gas treatment unit are inserted in the housing, the locking arrangement is blocked in the locked state by the second exhaust gas treatment unit.

Abstract: An exhaust muffler for an exhaust system of an internal combustion engine includes a muffler housing (12) with an outer shell (14) enclosing a muffler interior (22), through which exhaust gas can flow. An inner shell (54) is arranged in the muffler interior (22) and covers the outer shell (14) in at least some areas on an inner side (52) facing the muffler interior (22).

Abstract: A support assembly supports an exhaust gas treatment element of an exhaust gas treatment unit for an exhaust gas system of an internal combustion engine. A carrying body is secured on a housing of an exhaust gas treatment unit and surrounds an assembly center axis as a ring or annulus. At least one flexible supporting element is carried on the carrying body. The supporting element has an exhaust gas treatment element supporting side for supporting interaction with an exhaust gas treatment element. The carrying body has a radial limb at least partially engaging radially over the supporting element on a carrying body supporting side facing away from the exhaust gas treatment element supporting side. The supporting element is supported by the carrying body supporting side thereof on the radial limb so as to be shiftable radially inward with respect to the carrying body.

Abstract: A heating unit for an exhaust-gas system of an internal combustion engine includes a heating-unit housing for conducting an exhaust-gas in a main flow direction. A plurality of heating elements are arranged in the heating-unit housing and are shaped in a meandering manner. Each heating element has a plurality of plate-like heating sections which follow one another in a heating-element longitudinal direction. The heating sections of each heating element are connected to one another via respective connecting sections. Each heating element has two connection regions which are arranged at a distance from one another. In each connection region, the heating elements are electrically conductively connected to a connection region of a further heating element.

Abstract: An exhaust gas heater for an exhaust system of an internal combustion engine includes a carrier arrangement and a heating conductor arrangement supported on the carrier arrangement. The heating conductor arrangement has at least one heating conductor wherethrough current flows. The at least one heating conductor is supported with respect to the carrier arrangement by at least one connecting element. At least one length compensation arrangement has a first length compensation element, which has a first supporting surface providing a wedge formation, and has a second length compensation element, which has a second supporting surface supported on the first supporting surface and provides a counter-wedge formation. The length compensation arrangement is provided in association with the at least one connecting element. The first length compensation element and the second length compensation element have materially different coefficients of thermal expansion.