Abstract: An exhaust-gas flap device, especially for the exhaust-gas flow of an internal combustion engine, has a flap pipe and a flap plate that is supported, in the interior of the flap pipe, on a pivot shaft that is rotatable about a pivot axis. The exhaust-gas flap device further includes a pivoting drive for the pivot shaft with a drive element. A coupling unit couples the drive element to the pivot shaft for conjoint rotation about the pivot axis. Vibration-damping material is arranged in the region of the coupling unit.

Abstract: A probe carrier arrangement, especially for an exhaust system of an internal combustion engine, includes a probe socket (14) provided at a probe carrier body (12). The probe socket (14) has at least one insert-receiving opening (24) extending in a direction of an insert-receiving opening longitudinal axis (E). A probe carrier insert (28) is arranged in the insert-receiving opening (24). The probe carrier insert (28) has at least one probe-receiving opening (36) extending in a direction of a probe-receiving opening longitudinal axis (S).

Abstract: A mixer device for an exhaust system of an internal combustion engine includes a tubular carrier (30) enclosing a mixer longitudinal axis (A) in a ring shape configuration and a mixer insert (28) carried at the carrier (30). The mixer insert (28) has a plurality of connection attachments (52, 54, 56) located at spaced locations from one another in relation to the mixer longitudinal axis (A) radially on the outside. The carrier (30) has a plurality of connection recesses (60, 62) for the permanent connection of the mixer insert (28) to the carrier (30).

Abstract: An internal combustion engine exhaust system mixer device includes a bottom element (12) includes a downstream rear side (22) and a front side (44). The bottom element has a reactant introduction opening (31), open to a reactant receiving volume (46), and expands therefrom radially from the reactant introduction opening toward the front side. Exhaust gas passage ducts (58), arranged following one another in the circumferential direction about the opening axis (A), open to the reactant receiving volume. A swirl generation element (20) is connected to the bottom element and encloses the opening axis. A mixing volume (64) adjoins the reactant receiving volume in the direction of the opening axis and is formed in the swirl generation element. A plurality of exhaust gas passage openings (66), following one another in the circumferential direction, about the opening axis are provided in the swirl generation element.

Abstract: An exhaust gas treatment system is provided for an exhaust system of an internal combustion engine. The exhaust gas treatment system includes a plurality of SCR catalytic converter units (32, 34, 36) connected in parallel to one another. At least one SCR catalytic converter unit (32, 34, 36) of the SCR catalytic converter units (32, 34, 36) is connected in parallel to one another can optionally be released and blocked for the flow of exhaust gas.

Abstract: A coupling device couples a drive shaft of a pivot drive (30) of an exhaust gas stream exhaust flap (10) for an internal combustion engine with a pivot shaft (14), which is rotatable about a pivot axis (A) and carries a flap member (16). The coupling device includes a coupling element (46) with a first coupling area (42) positive-locking engaging with a drive shaft (34) and with a second coupling area (44) positive-locking engaging with a pivot shaft. A prestressing element (58) is supported in relation to the coupling element and in relation to a support element (66) and prestresses the coupling element in a direction of a coupling axis (K), axially away from the support element and in a circumferential direction. A preassembly-blocking device (78) holds the support element under axial prestress and circumferential prestress in a preassembled position in relation to the coupling element.

Abstract: A gas/gas mixer for introducing gas into an exhaust gas stream of an internal combustion engine. The gas/gas mixer includes an exhaust gas flow duct (18) in an exhaust gas carrying element (14), through which exhaust gas (A) can flow. A mixer body (20) is arranged in the exhaust gas carrying element (14) with a plurality of exhaust gas flow openings (44), through which exhaust gas (A) flowing in the exhaust gas flow duct (18) can flow. A gas feed volume (38), through which gas (G) to be introduced into the exhaust gas stream (A) can flow, is formed in the mixer body (20). The gas feed volume (38) is open towards the exhaust gas flow duct (18) via a plurality of gas release openings (56).

Abstract: A muffler, for an internal combustion engine exhaust system, includes a muffler housing (12) with a housing jacket (14) elongated in a housing longitudinal axis (A) direction and with an outer panel (16) connected to the housing jacket at both axial end areas thereof to define a muffler interior (18). An inner panel (20) is arranged in and divides the muffler interior. A muffling unit (24) includes an exhaust-gas-carrying inner pipe (26), an outer pipe (28) enclosing the inner pipe and muffling material (32) arranged between the inner pipe and the outer pipe. The inner pipe is accommodated in an opening (48) of an inner panel and in an opening (40) of one of the outer panels or of an additional inner panel. The outer pipe is permanently connected to the inner panel or/and to one of the outer panels or to the additional inner panel.

Abstract: A mixer assembly unit, especially for an exhaust system of an internal combustion engine of a vehicle, includes a mixer body (48) with an incoming flow side (58) and with an outgoing flow side (60); and a carrier element (24) with a carrier element body (44) enclosing the mixer body (48) radially on an outside in relation to a mixer longitudinal axis. The mixer body (48) includes a plurality of flow deflection elements (62) and at least one holding area (70). The carrier element (24) includes a counter holding area (46) in association with a holding area (70). The counter holding area (46) is connected in substance to the holding area (70). The counter holding area (46) overlaps the holding area (70) at least partly radially on a side oriented in a direction of the outgoing flow side (60) of the mixer body (48).

Abstract: A muffler for an exhaust system of an internal combustion engine includes a muffler housing (14) and at least one exhaust gas pipe group (19). The at least one exhaust gas pipe group (19) includes an outlet pipe (20) open towards an expansion chamber (26) formed in the muffler housing (14). Exhaust gas introduced via the at least one exhaust gas pipe group (19) leaves the muffler housing (16) via the outlet pipe (20). A first inlet pipe (38), of the at least one exhaust gas pipe group (19), has an inlet pipe end area (40), which is inserted into the outlet pipe (20) and extends in the outlet pipe (20). A second inlet pipe (48), of the at least one exhaust gas pipe group (19), is open towards the expansion chamber (26).

Abstract: A mixer assembly unit, especially for an exhaust system of an internal combustion engine of a vehicle, includes a mixer body (48a) with an incoming flow side (58a) and with an outflow side (60a) and with a plurality of flow deflection elements (62b). A carrier area (24a) is provided radially outwards in relation to a mixer longitudinal axis (L) at the mixer body (48a). The carrier area (24a) has an exhaust gas guide element connection area (72a) for permanent connection to a preferably tubular exhaust gas guide element (16a). Radially outside of the exhaust gas guide element connection area (72a), a flange coupling section (88a) couples with a flange coupling section (98a) of another exhaust gas guide element (14a).

Abstract: An exhaust gas flap includes a flap tube (12), a flap diaphragm (16), in an interior of the flap tube on a pivot shaft (14) rotatable about a pivot axis (A), a pivot drive (30) for the pivot shaft (14) and a coupling device (36) coupling the pivot shaft to a drive shaft (34). The coupling device includes a first coupling area (42) rotationally coupled, positive-lockingly meshed with the drive shaft and a second coupling area (44) rotationally coupled, positive-lockingly meshed with the pivot shaft. A biasing element (58) is supported in relation to the coupling device and in relation to one shaft of the drive shaft and the pivot shaft. The coupling device is axially prestressed, by the prestressing element, away from the one shaft along in the direction of the pivot axis and is prestressed about the pivot axis in relation to the one shaft.

Abstract: A mixer for an exhaust system of an internal combustion engine includes a mixer housing (40) with an inflow opening central axis (LE) and with an outflow opening (38). A first flow duct (48) following the inflow opening (24) in the mixer housing (40) and a second flow duct (50) lead parallel to one another to a third flow duct (54) and open into same. The third flow duct (54) leads to the outflow opening (38). The first flow duct (48) and the second flow duct (50) are provided between an outer wall (16) of the mixer housing (40) and a flow divider wall (36) enclosed by the outer wall (16), and the third flow duct (54) is enclosed by the flow divider wall (36).

Abstract: A mixer is provided for mixing exhaust gas (A) flowing in an exhaust gas-carrying duct (14) of an internal combustion engine with reactant injected into the exhaust gas-carrying duct (14). The mixer includes a mixing body (22) with a reactant-receiving duct (34), an exhaust gas inlet opening device (54) with a plurality of exhaust gas inlet openings (56) leading to the reactant-receiving duct (34), and at least one releasing duct (40, 42) leading away from the reactant-receiving duct (34) with a releasing duct opening (48, 50) for releasing a reactant/exhaust gas mixture from the mixer body (22). An electrically energizable heater (68) is provided at the mixer body (22).

Abstract: A process manufactures an exhaust gas treatment device including a tubular circumferential wall (14) elongated along a longitudinal axis (L) with two axial end areas, an exhaust gas treatment unit (52) arranged in the circumferential wall and a closing element (20, 38) connected to the circumferential wall at the two axial end areas. The exhaust gas treatment unit is held at the circumferential wall by a supporting material layer (54) enclosing the exhaust gas treatment unit and supporting same in relation to the circumferential wall. The process includes arranging a first of the two closing elements at one of the axial end areas of the circumferential wall, pushing the exhaust gas treatment unit enclosed by the supporting material layer into the circumferential wall from the other axial end area (18), and arranging a second of the closing elements at the other axial end area of the circumferential wall.

Abstract: An internal combustion engine exhaust system includes an exhaust gas treatment unit carried at a carrier. The carrier has a receiving opening (20), receiving the treatment unit, with a first sealing surface (28) enclosing the opening. The exhaust gas treatment unit has a second sealing surface (42), enclosing a treatment unit longitudinal axis, located opposite the first sealing surface. The exhaust gas treatment unit has a third sealing surface (44), enclosing the treatment unit longitudinal axis. A closing element (48), fixable with the exhaust gas treatment unit to the carrier, has a fourth sealing surface (50), located opposite the third sealing surface. A first sealing element (52) is arranged between the first sealing surface and the second sealing surface. A second sealing element (54) is arranged between the third sealing surface and the fourth sealing surface. The first sealing element and the second sealing element are of identical configuration.

Abstract: A silencer insert (10) for a silencer of an exhaust system includes a first and a second partition wall (11, 12) and a connecting wall (13) arranged therebetween. The first partition wall (11) defines a first plane (E1), the second partition wall (12) defines a second plane (E2), and the connecting wall (13) defines a third plane (E3). At least one of the first partition wall, the second partition wall, and the connecting wall includes at least one perforated area (15). The connecting wall (13) is formed in one piece with the first partition wall (11) and the second partition wall (12). The first plane encloses with the second plane an angle of not more than 60°, the first plane and the second plane being particularly in parallel. A silencer is provided including a housing (1) receiving the silencer insert (10). A method is provided for manufacturing the silencer insert.

Abstract: A muffler assembly unit for an exhaust system of an internal combustion engine, especially in a vehicle, includes a muffler (42) with a muffler housing (10). The muffler housing (10) is elongated along a longitudinal axis of the housing. A housing jacket (40) encloses the muffler housing (10). At least one air guiding bulge (34) is provided on the housing jacket (40).

Abstract: A mixer for an exhaust system of an internal combustion engine includes a first mixer part (12) with a plate shape body (14) having an incoming upstream flow side (18), with respect to an exhaust gas main flow direction (A) and a downstream outflow side (22), and a second mixer part (24), on an outflow side, with a bottom wall (26) spaced apart from the plate shape body and with two side walls (28, 30), extending from the bottom wall (26) towards the plate shape body and fixed at the first mixer part. The mixer parts define a reactant injection duct (32) receiving reactant in a main injection direction (R). An exhaust gas main passage opening (54) the plate shape body opens towards the reactant injection duct with a plurality of exhaust gas secondary passage openings (78, 80, 82, 84, 86, 88, 90, 92) run past the injection duct.

Abstract: A process for manufacturing a muffler for an exhaust system of an internal combustion engine, provides a manufactured muffler with a muffler housing with a housing jacket (14) that is elongated in a direction of a housing longitudinal axis and with at least one housing bottom (26) carried on the housing jacket (14). The process includes the steps of providing the housing jacket (14) with a stop formation (50) in association with at least one housing bottom (26) to be carried on the housing jacket (14), providing the at least one housing bottom (26) to be carried on the housing jacket (14), and positioning the at least one housing bottom (26) on the housing jacket (14) such that the housing bottom (26) is in contact with the stop formation (50) associated with the housing bottom (26).