Abstract: A muffler (1) for an exhaust system of an internal combustion engine, especially of a motor vehicle, has a housing (2), which encloses a muffler volume (7) and has at least one flat wall area (6), with at least one inlet tube (3) and with at least one outlet tube (4) and with at least one bracket (5) for fastening the muffler (1) to a holding structure. A lightweight construction is simplified if at least one wall section (11) of such a flat wall area (6) is formed by a flat lightweight panel (12) with sandwich structure.

Abstract: The present invention relates to a sliding seat for mounting a thermally impacted pipe on a structural part so as to be axially movable, in particular in an exhaust gas system of a combustion engine, with a bearing material which is radially supported against pipe on the outside thereof and which is fixed on structural part via a retaining pipe fastened on structural part.

Abstract: The present invention relates to a loudspeaker (1; 1?; 1?) with a loudspeaker housing (2; 2?), a basket (3) held in the loudspeaker housing (2; 2?) and bearing a permanent magnet (9), a coil (91) arranged in a constant magnetic field generated by the permanent magnet (9) and connected with a diaphragm (5), and at least one heat pipe (10) with a heating zone (Z1) and cooling zone (Z3), wherein the heating zone (Z1) is arranged on the permanent magnet (9), and the cooling zone (Z3) on the loudspeaker housing (2; 2?). The present invention further relates to the use of such a loudspeaker for actively extinguishing or influencing sound waves, and a noise control system (100) for exhaust systems of a vehicle powered by an internal combustion engine with such a loudspeaker (1; 1?, 1?).

Abstract: A four-way exhaust gas valve has a permanent inlet, a permanent outlet, a selectable inlet, a selectable outlet and a pivotable valve flap. The pivotable valve flap is arranged for switching between a first mode of operation, in which exhaust gas entering through the permanent inlet is guided directly to the permanent outlet, and a second mode of operation, in which exhaust gas entering through the permanent inlet is discharged through the selectable outlet and exhaust gas re-entering through the selectable inlet is discharged through the permanent outlet.

Abstract: The present invention relates to an arrangement for the heat transfer between a tubular body suitable for conducting a fluid and a contact body that is in contact with said tubular body, wherein the contact body comprises a contact side facing the tubular body, with which the contact body is in contact with an outside of the tubular body facing the contact body, wherein in a tensioned state of the arrangement a preload force presses the contact body against the tubular body in a preload direction.

Abstract: A silencer (1; 1?) for an exhaust system of an internal combustion engine, in particular of a motor vehicle, includes a housing (2; 2?), which includes a housing shell (3; 3?) extending in a circumferential direction (U) of the housing (2; 2?). At least one sandwich plate (6; 6?) forms a part of the housing shell (3; 3?). A housing interior space (4) including at least one chamber (8), is enclosed by the housing (2). A self-supporting support structure (5) is provided, which includes a pipe arrangement (7) that is at least partially arranged in the housing interior space (4).

Abstract: A flow guide (8) is provided for an exhaust system (3) of an internal combustion engine (1), especially in a motor vehicle. The flow guide (8) has at least one U-shaped guide plate body (13), which can be mounted with its U-base (14) on a pipe section (4?) of the exhaust system (3) and whose U-legs (15) form in the mounted state a flow guide plate (15) each. The flow guide plate cooperates with an exhaust gas stream (19) being guided in the pipe section (4?) during the operation of the exhaust system (3).

Abstract: An exhaust-gas treatment device (1) for an exhaust gas system of an internal combustion engine, in particular of a motor vehicle, includes a housing (2), the jacket (3) of which encloses an accommodating space (5) in the circumferential direction, at least one exhaust-gas treatment element (6), which is arranged in the accommodating space (5), and a bearing layer (7) made of an elastic bearing material, which bearing layer encloses the at least one exhaust-gas treatment element (6) in the circumferential direction and which lies radially against at least one exhaust-gas treatment element (6). An insulating layer (8), made of a thermally insulating, deformation resistant/compression resistant insulating material, encloses the bearing layer (7) in the circumferential direction within the jacket (3).

Abstract: A mixing and/or evaporating device (7) is provided through which exhaust gas can flow axially. The mixing and/or evaporating device (7) is arranged in an exhaust gas-carrying line of an exhaust system of an internal combustion engine, especially of a motor vehicle, with a plurality of blades (8), which are arranged distributed in the circumferential direction and which project inwardly from an outer wall (9). Each blade (8) has a profile (10) at least in an area adjoining the outer wall (9) in the axial direction (14), in which profile a discharge edge (12) has an offset (16) in the circumferential direction (15) in relation to the leading edge (11). A reduction of the flow resistance of the device (7) can be achieved if the profile (10) has an angle of incidence (17) each in relation to the axial direction (14) at the leading edge (11) and at the discharge edge (12), which angle is in a range of ?10°, inclusive to +10°, inclusive.

Abstract: The invention relates to a mixing and/or evaporation device for an exhaust system, an internal combustion engine, having a tubular body on whose one axial end are arranged several blades adjacent to one another in the circumferential direction, protruding radially inward and leaving free a central passage such that the blades are set at an angle to the axial direction. For inexpensive manufacturing, the tubular body may be manufactured from a single sheet metal body by shaping together with the blades.

Abstract: An exhaust system component (1) of an exhaust system (2) for an internal combustion engine, especially of a motor vehicle has an inner pipe (3) made of metal, which is exposed to exhaust gas during the operation of the exhaust system (2), a housing (4) made of plastic, which encloses a working space (6), and an outer pipe (5) made of metal. The outer pipe (5) is fastened at a first end area (7) to the inner pipe (3) and is rigidly connected at a second end area (9) to the housing (4) and encloses between these end areas (7, 9) an annular space (10) formed radially between the inner pipe (3) and outer pipe (5).

Abstract: An exhaust system (3) of an internal combustion engine (2) is provided in a support structure (1), especially in a motor vehicle (1), with at least one exhaust pipe (8), which guides exhaust gas from the internal combustion engine (2) to the environment (4) of the support structure (1). At least one exhaust muffler (5) is provided which has at least one resonance volume (6) and at least one connection line (7), via which the respective resonance volume (6) is connected to the respective exhaust pipe (8) for transmitting airborne sound. A space-saving accommodation is obtained if at least one such resonance volume (6) is formed in a resonance chamber (9) arranged rigidly in or at the support structure (1) and if the respective connection line (7), with which the respective resonance chamber (9) is connected to the respective exhaust pipe (8), is designed as a flexible connection line and permits relative movements between the respective resonance chamber (9) and respective exhaust pipe (8).

Abstract: The invention relates to an exhaust gas treatment device for an exhaust gas system of an internal combustion engine, in particular in a motor vehicle, having at least one exhaust gas treatment element, which is supported radially on a housing by a bearing material and is supported axially on the housing by a supporting device, such that the supporting device has a carrier which is connected to the housing by at least one connection site and has at least one receptacle for holding a supporting material which is in contact with the exhaust gas treatment element axially such that the carrier has a cross-sectional contour that widens from the respective receptacle to the respective connection site in the axial direction.

Abstract: An exhaust gas-treating device (1) for an exhaust system of an internal combustion engine, especially of a motor vehicle, which is provided with an insert (3), which has a plurality of ducts (5, 5?), through which parallel flow is possible. The insert has, in an inflow-side, first section (6), an oxidation catalyst coating, which forms an oxidation catalytic converter (K1). The insert comprises on an outflow-side a second section (7) with a particle filter (K3) with inlet ducts (12) closed on the outflow side and with outflow ducts (13) closed on the inflow side after the first section (6). Greater integration of a plurality of catalyst components of the exhaust gas-treating device (1) is possible.

Abstract: The present invention relates to an exhaust system for an internal combustion engine, more preferably of a motor vehicle, with an exhaust gas turbine, with an exhaust pipe, whose inlet is fluidically connected with an outlet of the exhaust gas turbine, with a flange connection for connecting the exhaust gas turbine with the exhaust pipe which comprises a flange fastened to the exhaust pipe and attached to the exhaust gas turbine, and with a shielding apron which is so arranged and/or incorporated in the flange connection that in the operation of the exhaust system it protects a transition region between the flange and the exhaust pipe from direct admission of exhaust gas.

Abstract: The present invention relates to a sliding fit for the axially movable bearing of a thermally loaded pipe on a component, in particular on an exhaust system of an internal combustion engine, having a wire mesh which is radially supported on the outside of the pipe and is secured directly or indirectly to the component.

Abstract: An exhaust system component (1) of an exhaust system (2) for an internal combustion engine, especially of a motor vehicle has an inner pipe (3) made of metal, which is exposed to exhaust gas during the operation of the exhaust system (2), a housing (4) made of plastic, which encloses a working space (6), and an outer pipe (5) made of metal. The outer pipe (5) is fastened at a first end area (7) to the inner pipe (3) and is rigidly connected at a second end area (9) to the housing (4) and encloses between these end areas (7, 9) an annular space (10) formed radially between the inner pipe (3) and outer pipe (5).

Abstract: A mixing and/or evaporating device (7) is provided for an exhaust system (3) of an internal combustion engine (1), especially in a motor vehicle. The mixing and/or evaporating device (7) has a tubular body (8), at one axial end of which a plurality of blades (9) are arranged, which blades are located adjacent to each other in the circumferential direction, project radially inwardly and have angles of incidence in relation to one another in the axial direction. For manufacture at a low cost, the tubular body (8) is manufactured together with the blades (9) from a single sheet metal body (11) by shaping.

Abstract: An exhaust system component (5) is provided for an exhaust system (1) of an internal combustion engine, especially of a motor vehicle, with an inner shell (6), which defines an exhaust-gas-guiding inner area (7), with an outer shell (8), which is arranged on an outer side of the inner shell (6) turned away from the inner area (7), with a cavity formed between inner shell (6) and outer shell (8), and with heat insulation (10) arranged in the cavity (9). The heat insulation of the component (5) includes insulation (10) having at least one microporous molding (molded body) (11).

Abstract: A muffler (1) for an exhaust system of an internal combustion engine, especially of a motor vehicle, has a housing (2), which encloses a muffler volume (7) and has at least one flat wall area (6), with at least one inlet tube (3) and with at least one outlet tube (4) and with at least one bracket (5) for fastening the muffler (1) to a holding structure. A lightweight construction is simplified if at least one wall section (11) of such a flat wall area (6) is formed by a flat lightweight panel (12) with sandwich structure.