Abstract: A mixer mixes exhaust gas (A) flowing in an exhaust gas-carrying duct of an internal combustion engine with reactant (R) injected into the exhaust gas-carrying duct. The mixer includes a mixer body (32) with a reactant receiving duct (48), an exhaust gas inlet opening arrangement (70) with a plurality of exhaust gas inlet openings (72, 74, 76, 78, 80) leading to the reactant receiving duct, and at least one release duct (62, 66) leading away from the reactant receiving duct (48) with a release duct opening (64, 66) for the release of a reactant/exhaust gas mixture from the mixer body (32).

Abstract: A device for releasing reactant (R) into the exhaust gas stream (A) of an internal combustion engine, includes a reactant injection unit (20), a reactant delivery unit (12) for delivering reactant (R) from a reactant reservoir (14) to the reactant injection unit (20), and a heating unit (18) for heating reactant (R) delivered by the reactant delivery unit (12) to the reactant injection unit (20). The reactant injection unit (20) is switchable as a function of a reactant pressure generated by the reactant delivery unit (12) between an open state for releasing reactant (R) and a locked state for preventing the release of reactant.

Abstract: A support unit for supporting an exhaust system (18) of a vehicle comprises at least one support element (26) made of light metal die-cast material.

Abstract: An exhaust system, especially for an internal combustion engine of a vehicle, includes an exhaust gas-carrying duct (14) and a reactant injection device (20) for injecting reactant (R) into exhaust gas (A) flowing in the exhaust gas-carrying duct (14). Downstream of the reactant injection device (20), a mixer device (22) supports the mixing of reactant (R) injected by the reactant injection device (20) with exhaust gas (A) flowing in the exhaust gas-carrying duct (14). Downstream of the reactant injection device (20) and upstream of the mixer device (22), a reactant heating device (24) extends in the exhaust gas-carrying duct (14). The exhaust gas (A) flows in and reactant (R) injected through the reactant injection device (20) flow around the heating device (24).

Abstract: An exhaust gas mixer arrangement for mixing exhaust gases of an internal combustion engine with an additive comprises an exhaust gas flow duct (28) with an inlet area (24) arranged upstream and with a discharge area (26) arranged downstream. The exhaust gas flow duct (28) is bent in a coil-like manner at least in some areas between the inlet area (24) and the discharge area (26).

Abstract: An internal combustion engine exhaust system muffler (1) has a housing (2) within which two chambers (3) are formed with an inner panel (4) arranged therebetween. The inner panel (4) has at least one collar (8) at the edge, which has an outer side (9) facing the housing (2), and wherein the housing (2) has, on an inner side (11), in the area of the inner panel (4), at least one contour (12), which faces the collar (8) and with which the collar (8) is in contact. Reduced noise generation, reduced wear as well as prolonged service life can be achieved with the outer side (9) of the collar (8) forming a cone structure (10) in profile and the contour (12) of the housing (2) forms a cone structure seat (13) with a complementary cone profile and with which the cone (10) is flatly and non-positively in contact.

Abstract: A muffler for an exhaust system of an internal combustion engine includes a housing with a circumferential wall. At least one resonator chamber (48) is defined by the circumferential wall and two base walls (28, 22), that are provided in the housing. At least one resonator pipe (50), with a first pipe end (51) and with a second pipe end (56), is connected to one of the base walls (28) in the area of a first opening (52) in the one of the base walls (28). In the alternative or in addition the one of the base walls (28) traverses an interior space such that the first pipe end (51) lies outside of the resonator chamber (48), with the second pipe end (56) being fixed to the other base wall (22).

Abstract: An injection device (14), for introducing a reducing agent (11) into an exhaust gas stream (8) of an exhaust system (7) of an internal combustion engine (1), has an exhaust pipe (15) for guiding the exhaust gas stream (8), which has a connecting piece opening (18) in a wall (17). A connecting piece (16) is inserted with an inner end (19) into the connecting piece opening (18) and is provided for connecting an injector (10) at an outer end (20). Simplified assembly is achieved if the connecting piece (16) has, at an inner end (19), a laterally projecting, fully circumferentially extending collar (22). The collar (22) is in contact, on an inner side (23) of the wall (17), with an opening edge (24) enclosing the connecting piece opening (18) and is welded to the wall (17).

Abstract: A device for releasing reactant (R) into the exhaust gas stream (A) of an internal combustion engine includes a reactant injection unit (20), a reactant delivery unit (12) for delivering reactant (R) from a reactant reservoir (14) to the reactant injection unit (20), a heating unit (18) for heating reactant (R) delivered by the reactant delivery unit (12) to the reactant injection unit (20). An actuating unit (32) actuates the reactant delivery unit (12), the heating unit (18) and the reactant injection unit (20). An overpressure valve (26) or/and a pressure storage unit (30) is provided downstream of the reactant delivery unit (12).

Abstract: A support unit for supporting an exhaust system of a vehicle includes a first connecting element (26), a second connecting element (28) and at least one coupling element (30) coupling the first connecting element with the second connecting element. A first coupling element passage opening (38) is provided in the first connecting element and a second coupling element passage opening (40) is provided in the second connecting element. The coupling element passes through the first coupling element passage opening (38) and the second coupling element passage opening. A coupling element clamping area is provided in a first longitudinal area (L1) of at least one first coupling element passage opening and a coupling element clamping release area (44) is provided in a second longitudinal area (L2) of this first coupling element passage opening. The coupling element clamping area has a greater thickness than the coupling element clamping release area.

Abstract: 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).

Abstract: An exhaust gas treatment device (1), for an exhaust system of an internal combustion engine, includes a tubular housing (2) and an insert (5) arranged replaceably in the housing (2). The insert (5) has an exhaust gas treatment element (7) fixed in a tubular jacket (6) and is able to be pushed into the housing (2) in a pushing-in direction (9), which extends parallel to a central longitudinal axis (10) of the housing (2). The jacket (6) has, on an outer side (15), an axial stop (14), axially in contact with an axial counterstop (18) in the pushing-in direction (9) and is formed on the housing (2) on an inner side (17). A locking element (19) is axially supported on a support contour (20), is formed on the jacket (6) in the pushing-in direction (9), and is provided on the inner side (17) of the housing.

Abstract: An exhaust gas treatment device, especially for an exhaust system of an internal combustion engine of a vehicle, includes a housing (12) elongated in a direction of a housing longitudinal axis (L). An exhaust gas treatment unit (18) is arranged in the housing (12). At least one first exhaust gas guiding device (24) is in flow connection with an axially open axial end area (16) of the housing (12). The first exhaust gas guiding device (24) provides a first flow path area (38) extending along an outer side (22) of the housing (12) as well as a second flow path area (47) connecting the first flow path area (38) with the axially open axial end area (16) of the housing (12).

Abstract: A system has a sound generator (20) that generates superimposed sound to a sound to be manipulated. An error sensor (50) measures sound and outputs a corresponding feedback signal (e?(n)). A signal generator (91) generates a sound signal (y(n)). A controller (92) generates a control signals (?1(n)) and (?2(n)). The adder (94) subtracts one control signal (?2(n)) from the feedback signal (e?(n)) and outputs a modified feedback signal (en(n)) to the signal generator (91). A weighter (95) weights the sound signal (y(n)) with the control signal (?1(n)) and outputs the weighted sound signal (y?(n)). The generated sound signal (y(n)) is a function of the modified feedback signal (e(n)). The controller (92) generates the control signals (?1(n), ?2(n)) such that a value of the amplitudes of the feedback signal (?e?(n)?) corresponds to a predefinable value (?).

Abstract: A sound generator (100) mounts on a vehicle to manipulate vehicle noise originating from a vehicle operated by an internal combustion engine. The sound generator (100) includes a casing (110), a loudspeaker (120), and at least one pressure compensation valve (130). The loudspeaker (120) and the casing (110) together thereby enclose a volume (115). Further, the pressure compensation valve (130) couples the volume (115) enclosed by the loudspeaker (120) and the casing to an outside of the casing (110). The pressure compensation valve (130) thereby extends through a plane in which the loudspeaker (120) is located. A system (200) for manipulating sound waves propagating through exhaust systems of vehicles driven by an internal combustion engine uses the above sound generator (100).

Abstract: An evaporator (1), for evaporating a liquid (4), particularly for a waste heat utilization device of an internal combustion engine, includes a plurality of channel plate arrangements (2) that are stacked in a stacking direction (3). A gas path (6) is formed between each pair of adjacent channel plate arrangements (2), through which a gas (7) can be conducted. The gas is used to supply the heat that is required to evaporate the liquid (4). Each channel plate arrangement (2) contains a liquid inlet (8), a steam outlet (9), and a channel (11) which connects the liquid inlet (8) and steam outlet (9) together and which forms a repeatedly deflecting evaporation path (12) for the liquid (4) to be evaporated. The channel (11) has, in an evaporation path (12) evaporation zone (14), a flowable cross-section (18) which increases in a direction of liquid (4) flow.

Abstract: A system includes a sound generator (20) that generates sound superimposed to sound to be manipulated. An error sensor (50) measures superimposed sound and outputs a corresponding feedback signal (e?(n)). A signal generator (91) generates a sound signal (y(n)). A controller (92) generates a control signal (?(n)) representing a value of a sequence of rational numbers. A weighter (93) weights the generated sound signal (y(n)) with the control signal (?(n)) and inverts it. An adder (94) adds the weighted/inverted sound signal to the feedback signal (e?(n)) and outputs a modified feedback signal (e(n)) to the signal generator (91). A weighter (95) weights the generated sound signal (y(n)) with the difference from one and with the control signal (?(n)) and outputs the sound signal y?(n). The generated sound signal (y(n)) is a function of the modified feedback signal (e(n)).

Abstract: A thermoelectric generator includes a first channel for passing a warm fluid along a direction of flow, a second channel for passing a cold fluid, a plurality of thermocouple elements disposed along the direction of flow between the first and second channels, a first member includes portions disposed between the elements and the first channel and associated with the individual elements for providing a heat coupling between the associated element and the first channel, and a second member including portions disposed between the elements and the second channel and associated with the individual elements for providing a heat coupling between the associated element and the second channel. The sum of the thermal resistances of those portions that are associated with a first element positioned upstream of a second element is bigger than the sum of the thermal resistances of those portions that are associated with the second element.

Abstract: An arrangement (6) of a pipe (5) on a funnel (4) has a pipe interior space (8) fluidically connected with a funnel interior space (9). The funnel has an integral connection piece (10) with two axial openings (12) in the circumferential direction (11). A connecting sleeve (14), which has a clamping collar (15), which tapers towards the funnel and is formed integrally in one piece with the connecting sleeve (14), is attached to the connection piece on the outside thereof. The pipe is attached to the connection piece with an end section (16) facing the funnel. The end section has a counterclamping collar (17), which is formed integrally in one piece therewith and tapers away from the funnel. A clamp connection (7) has a clamp (18) with a ring-shaped connecting body (19) extending over the clamping collar (15) and the counterclamping collar (17) and prestresses these axially towards one another.

Abstract: A connection pipe (7), for the fluidic connection of a muffler housing (5) of an active muffler (4) with an exhaust gas-carrying pipe (3) of an exhaust line (2) of an exhaust system (1) for an internal combustion engine, of a motor vehicle, has a pipe wall (8), which envelopes a connection space (9) leading from the muffler housing to the exhaust pipe. A cooling pipe (14), through which a coolant can flow, has an inlet section (15) and an outlet section (16) and is arranged in the connection space. The inlet section (15) passes through the pipe wall (8), whereby a coolant inlet (17), through which coolant can enter the cooling air pipe, is arranged outside the connection pipe (7). The outlet section passes through the pipe wall, whereby a coolant outlet (19), through which coolant can escape from the cooling pipe, is arranged outside the connection pipe (7).