EP2788599A1

EP2788599A1 - Silencer arrangement

Info

Publication number: EP2788599A1
Application number: EP12798714.7A
Authority: EP
Inventors: Roland Kess; Pamela Kess
Original assignee: Kesstech GmbH
Current assignee: KESSTECH GMBH
Priority date: 2011-12-09
Filing date: 2012-12-07
Publication date: 2014-10-15
Also published as: WO2013083739A1; US9188047B2; US20140318888A1; DE102011088150A1

Abstract

The invention relates to a silencer arrangement for exhaust systems of motor vehicles with internal combustion engines. The silencer arrangement comprises at least one rear exhaust silencer (16, 17) having at least one exhaust pipe (18, 19) for guiding exhaust gas and at least one actuatable adjustment device (26, 27) which is associated to the at least one rear exhaust silencer (16, 17) and has at least one adjustment body (30, 31) that can be displaced between an exhaust closing position and an exhaust opening position for influencing the flow of the exhaust gas in the at least one exhaust pipe (18, 19). The silencer arrangement also comprises an exhaust bypass device (2) having at least one connection piece (7, 8) arranged upstream of the at least one rear exhaust silencer (16, 17) for connecting to an exhaust manifold device (1), and having at least one exhaust bypass pipe body (13) which is fluidly connected to the at least one connection piece (7, 8) and has at least one exhaust bypass outlet for releasing the exhaust gas from the silencer arrangement.

Description

Silencer arrangement

The invention relates to a muffler arrangement for exhaust systems of motor vehicles with internal combustion engine. Furthermore, the invention is directed to an exhaust system arrangement for motor vehicles with internal combustion engine, which has a corresponding muffler arrangement.

Motor vehicles are understood to mean motor-driven vehicles. The motor vehicles include, for example, motorcycles, passenger cars, trucks, buses, tractors and special motor vehicles counted. The internal combustion engine may be a diesel engine, Otto engine, hybrid engine, hydrogen engine or fuel cell engine.

Muffler assemblies are well known in the art. A disadvantage of these known arrangements is that they generally comprise a plurality of individual components and, moreover, are often extremely large in their design.

The invention is therefore based on the object to provide a muffler arrangement which comprises extremely few individual components and is designed to be particularly small. A corresponding Auspuffanlagen- arrangement should also be created.

This object is achieved by the features specified in the independent claims 1 and 15 features. The gist of the invention is that the exhaust gas bypass device has at least one connection Piece located upstream of the at least one exhaust end pot relative to the exhaust gas flow direction and in flow communication with an exhaust gas bypass pipe body. The at least one exhaust end pot is thus arranged downstream or in the exhaust gas flow direction after the at least one connecting piece. This has the consequence that the at least one exhaust silencer has an extremely small transverse dimension or an extremely small diameter. Furthermore, the silencer arrangement has such an extremely small number of components. In other words, the exhaust bypass device is arranged, as it were, upstream of or in front of the at least one exhaust end pot.

The at least one exhaust pipe is preferably circular in cross section. But it can also have any other cross-sections, such as an oval or square cross-section. The cross section may for example be constant. He can also change over the length of the exhaust pipe.

The at least one exhaust end pot preferably has an absorption jacket, which is formed from a suitable absorption material and surrounds the at least one exhaust pipe at least partially laterally.

The at least one exhaust silencer can also have no absorption jacket. The exhaust muffler may then have an identical transverse dimension as an exhaust manifold pipe. The transverse dimension of the exhaust silencer can also be smaller than the transverse dimension of the exhaust manifold pipe. The flow of the exhaust gas in the at least one exhaust end pot can be influenced by the at least one adjusting body. For example, the adjustment body allow a flow of the exhaust gas through the exhaust silencer or at least for the most part, preferably completely, prevent. By way of example, the exhaust gas stream and the exhaust gas back pressure can be changed by the at least one adjusting body, which has an effect on the power and the torque of the internal combustion engine of the motor vehicle. Preferably, the at least one adjustment body is infinitely adjustable. The adjustment of the at least one adjusting body is preferably carried out by a motor motor by adjusting. A corresponding motor control is advantageously present. A manual adjustment of the at least one adjustment body is alternatively possible.

It is advantageous if the at least one adjustment body is designed as an adjustment flap. The at least one adjusting body is preferably arranged at the end in or on the at least one exhaust end or exhaust pipe. Alternatively, it is arranged on the input side or in an intermediate region in the at least one exhaust end pot.

In the exhaust gas bypass device, attenuation by resonance, absorption, interference, throttle design (cross-sectional constriction), perforation of at least one wall part region of the exhaust gas bypass device and / or reflection is preferably carried out, whereby combinations are also possible. The at least one exhaust pipe is preferably perforated at least partially circumferentially. It is advantageous if essentially only in the exhaust gas bypass device, the mentioned damping takes place. On the other hand, no silencer is arranged in the at least one exhaust silencer, or essentially no silencing occurs in this silencer. The at least one muffler is thus arranged outside of the at least one exhaust silencer, so that it forms an external silencer.

The exhaust bypass device preferably has one or more flow chambers. If several flow chambers are provided, they are conveniently connected in series.

At least one hollow exhaust guide insert is used in the exhaust bypass tube body, which limits the at least one flow chamber. The exhaust gas guide insert has, for example, a rectangular, curved, circular or part-circular cross section. Other cross sections are possible as an alternative.

The exhaust bypass tube body itself may also have any cross section. It may be at least partially filled with absorption material. Preferably, exactly one exhaust bypass pipe body is provided. However, it is also possible for a plurality, in particular two or three, exhaust bypass pipe bodies to be present.

The at least one exhaust bypass tube body is conveniently positionable in any locations, such as adjacent, under, over, or further spaced from the at least one exhaust muffler.

The exhaust manifold device preferably has at least one exhaust manifold pipe connectable to the engine. is closing. The at least one exhaust manifold pipe preferably runs straight or curved. The internal combustion engine may also be associated with a catalyst for exhaust aftertreatment. A catalyst is not mandatory.

It is advantageous if each exhaust manifold pipe is assigned its own connection piece. Preferably, each connection piece is assigned its own exhaust silencer. Another embodiment is alternatively possible. For example, a plurality of exhaust manifold pipes may be connected to an exhaust muffler.

The at least one connecting piece is preferably designed separately. The at least one connecting piece is alternatively embodied in one piece with the exhaust manifold device and / or with the at least one exhaust silencer. The at least one exhaust end pot can be designed accordingly. Furthermore, the noise of the muffler arrangement is particularly easy to adjust.

Further advantageous embodiments of the inventions are specified in the subclaims.

The embodiment according to claim 3 leads to an extremely compact design. It is also particularly advantageous in terms of flow. It is expedient if the exhaust gas bypass tube body extends parallel to the at least one exhaust pipe. It is advantageous if the exhaust gas bypass tube body is shorter, in particular substantially shorter than the at least one exhaust pipe. Alternatively, the exhaust bypass pipe body extends obliquely or perpendicular to the at least one exhaust end pot. The embodiment according to claim 4 results in an exhaust gas bypass tube body whose bypass channel is designed to be extremely long and thus has a plurality of exhaust gas deflection points. The exhaust deflection points form a kind of silencer, which acoustically dampens the sound waves of the exhaust gas. For example, acoustic attenuation occurs by reflection and / or resonance in the exhaust gas bypass tube body.

The exhaust gas collecting portion according to claim 5 enables collection of the exhaust gas. Preferably, it is also part of an exhaust switch.

The at least one motor vehicle holding means according to claim 7 is preferably designed as a flange, lug, eyelet, hook, clamp, other shaped part, fastening screw feedthrough opening or the like. Alternatively, the exhaust gas bypass device may also be fixable to the motor vehicle via a separate motor vehicle holding device. The at least one motor vehicle mounting means is alternatively integrally connected to the exhaust gas bypass device. It is then preferably molded.

According to claim 8, the exhaust gas flows through the exhaust gas bypass tube body when the at least one adjusting body is in its exhaust gas closing position. The at least one exhaust final pot is then preferably not or hardly flowed through. It is advantageous if at least 90%, more preferably at least 95%, even more preferably at least 97%, even more preferably at least 99% of the exhaust gas does not flow through the at least one exhaust end pot when the at least one adjusting body in its Exhaust gas closing position is located. According to claim 9, the exhaust gas flows through at least one of the exhaust pipes when at least one of the adjusting body is in its exhaust gas opening position. The exhaust gas bypass tube body is not or hardly flows through it.

The embodiment according to claim 10 is highly advantageous in terms of flow.

The first connecting piece and the second connecting piece according to claim 10 preferably extend parallel to one another. The exhaust bypass tube body may also extend laterally adjacent to the exhaust end pots when they abut each other or adjacent to each other.

Due to the configuration of claim 1 1, the flow of the exhaust gas in the respective exhaust final pot is particularly well influenced.

In the embodiment according to claim 12 extends quasi the cross section of the exhaust pipe leading exhaust pipe in the exhaust silencer, so that in the exhaust silencer is a particularly large storage space for the exhaust gas. The exhaust silencer thus provides for an increase in volume of the exhaust chamber. It forms or limits an exhaust gas expansion chamber.

In the embodiment according to claim 13, the exhaust gas bypass device has corresponding, known means or devices for

Silencing and calming the exhaust gas. Preferably, the exhaust gas is guided in the exhaust gas bypass tube body at least partially meandering. The at least one exhaust bypass pipe body according to claim 14 may also have any other shape or any other cross-section.

The dependent claims 2 to 14 may also be the subject of independent claim 15.

Hereinafter, preferred embodiments of the invention will be described by way of example with reference to the accompanying drawings. Showing:

1 is a schematic view of an exhaust system arrangement according to the invention, wherein the adjusting body are in their exhaust gas-closing position, Fig. 2 is a view of the exhaust system arrangement shown in Figure 1 from behind,

FIG. 3 shows a schematic view of the exhaust system arrangement shown in FIG. 1, the adjustment bodies of which are in their exhaust gas opening position, FIG.

4 shows a view from the rear of the exhaust system arrangement illustrated in FIG. 3, FIG. 5 shows a view from the rear of an exhaust system arrangement according to the invention according to a second embodiment,

6 is a rear view of an exhaust system arrangement according to the invention according to a third embodiment, a rear view of an inventive Auspuffan position arrangement according to a fourth embodiment, a rear view of a Auspuffan according to the invention lagen- arrangement according to a fifth embodiment, a rear view of an inventive exhaust system arrangement according to a sixth embodiment, a rear view of one Exhaust system arrangement according to a seventh embodiment of the invention, a rear view of an exhaust system according to the invention according to an eighth embodiment, a rear view of an exhaust system according to the invention according to a ninth embodiment, a rear view of an exhaust system arrangement according to the invention according to a tenth embodiment , A rear view of an exhaust system according to the invention arrangement according to an eleventh embodiment, a schematic view of an exhaust system according to the invention Ano According to a twelfth embodiment a view from the rear of the exhaust system shown in Fig. 15, a schematic view of an inventive exhaust system arrangement according to a thirteenth Ausfüh tion form,

FIG. 18 is a rear view of the exhaust system shown in FIG. 17. FIG.

Fig. 19 is a schematic view of an exhaust system arrangement according to the invention according to a fourteenth embodiment, and Fig. 20 is a schematic view of the exhaust system arrangement shown in Fig. 19 from an opposite side.

Referring first to FIGS. 1 to 4, an exhaust system arrangement according to a first embodiment includes one to one

Internal combustion engine (not shown) of a motor vehicle (not shown) connectable exhaust manifold device 1 and arranged downstream of the exhaust manifold device 1 exhaust bypass device 2. The exhaust manifold device 1 is here by a first exhaust gas Elbow pipe 3 and a second exhaust manifold pipe 4 is formed, which is connected in parallel to the first exhaust manifold pipe 3. Each exhaust manifold pipe 3, 4 has a curvature 5 and 6, respectively.

The exhaust gas bypass device 2 is designed as a hollow body. It has first tube-like connection piece 7 and a second tube-like connection. final piece 8, which is connected in parallel to the first connecting piece 7 and substantially parallel to this runs. The first exhaust manifold pipe 3 is connected on the input side to the first connecting piece 7, while the second exhaust manifold pipe 4 is connected on the input side to the second connecting piece 8.

The exhaust gas bypass device 2 further has an exhaust gas collecting portion 9 through which the first port piece 7 and the second port piece 8 are in fluid communication with each other. The exhaust gas collecting region 9 is connected in each case peripherally to the first connecting piece 7 and the second connecting piece 8. For this purpose, in each case a corresponding peripheral side opening 10 or 1 1 are formed in the first connection piece 7 and the second connection piece 8, which are substantially opposite one another. The exhaust gas collecting region 9 is spatially limited to the outside by a housing wall 12, which in turn forms an exhaust gas collecting housing 36.

The exhaust gas bypass device 2 further includes an exhaust bypass pipe body 13 connected to the housing wall 12 between the first terminal 7 and the second terminal 8 and the exhaust collecting area 9 is in flow communication. The exhaust bypass tube body 13 and the exhaust end pots 16, 17 are substantially on a common line (Figure 2). In the exhaust gas bypass tube body 13, an exhaust gas guide insert 14 is used, which defines a meandering exhaust gas bypass channel 15. The exhaust guide insert 14 has an elongate curved profile cross section. Opposite to the first exhaust manifold pipe 3, the first connecting piece 7 is followed by a first exhaust end pot 16. Opposite to the second exhaust manifold pipe 4, the second connecting piece 8 is followed by a second exhaust end pot 17.

The exhaust end pots 16, 17 are preferably substantially identical. Each exhaust end pot 16, 17 has an inner exhaust pipe 18 and 19, respectively, which has a perforation area with a plurality of peripheral perforation openings 20, 21. The exhaust pipes 18, 19 are each circumferentially surrounded by an absorption jacket 22 and 23, respectively. Each absorption jacket 22, 23 is in turn surrounded by an outer tube 24 and 25, respectively.

Furthermore, the first exhaust end pot 16 and the second exhaust end pot 17 each have an adjusting device 26 and 27, each having a in a bearing body 28 and 29 pivotally adjustable, flap-like adjustment body 30 and 31, respectively. The adjustment bodies 30, 31 can also be mounted directly on / in the exhaust end pots 16, 17. The adjustment bodies 30, 31 are arranged downstream of the respective exhaust pipe 18 and 19, respectively. The bearing body 28, 29 close to the front side of the exhaust pipes 18 and 19 and to the respective absorption jacket 22 and 23 at. The adjusting body 30, 31 are each pivotable about a pivot axis 34 and 35 respectively. They are each between an exhaust gas closing position and an exhaust gas opening position

pivotable. In the exhaust gas closing position, the adjusting bodies 30, 31 close the respective exhaust pipe 18 or 19 (FIG. 1). In the exhaust gas opening position, the adjusting bodies 30, 31 release the respective exhaust pipe 18 or 19 (FIG. 3). Downstream of each adjustment device 26, 27, each exhaust end pot 16 and 17, respectively, has an end pipe section 32 and 33, respectively. An embodiment without end pipe sections 32, 33 is alternatively possible, of course.

Hereinafter, with reference to Figures 1 and 2, the Auspuffanlagen- arrangement with closed adjustment bodies 30, 31 will be described. The internal combustion engine of the motor vehicle is in operation and thus generates exhaust gases. The exhaust gases flow through the first and second exhaust manifolds 3, 4 to the exhaust bypass device 2 in accordance with the flow arrow VI. After the two adjusting bodies 30, 31 are each in their exhaust gas-closing position and thus the exhaust pipes 18, 19 are closed, the exhaust gas flows via the side openings 10, 1 1 in the exhaust gas collecting area 9 together. The adjusting body 30, 31 are here perpendicular to the longitudinal center axis of the exhaust pipes 18, 19. The exhaust gas bypass device 2 forms a kind of switch. The exhaust gas flows in the connecting pieces 7, 8 obliquely or transversely in the side openings 10, 1 1. It then flows from the exhaust gas collecting area 9 in the exhaust gas guide insert 14 and is repeated in this redirected, soundproofed and low-emission. The exhaust gas then leaves the exhaust guide insert 14 and exits into the environment. The exhaust does not exit the exhaust pipes 18, 19 into the environment.

With reference to FIGS. 3 and 4, the exhaust system arrangement with opened adjustment bodies 30, 31 will be described below. The exhaust gas flows straight from the exhaust manifold pipes 3, 4 through the connection pieces 7, 8 and passes through the side openings 10, 11. The exhaust gas passes through the exhaust pipes 18, 19 and also passes through them respective adjusting body 30, 31. In the exhaust gas collecting region 9 flows now no or hardly any exhaust. It also occurs so no or little exhaust gas from the exhaust gas guide insert 14. The main flow of the exhaust gas is thus illustrated by the flow arrow V2. The adjusting bodies 30, 31 are here pivoted by 90 ° with respect to the previous exhaust gas closing position. They are oriented so that they produce an extremely low flow resistance for the exhaust gas in the exhaust pipes 18, 19. The adjustment of the adjusting body 30, 31 is preferably carried out via at least one adjusting motor which receives corresponding adjustment signals from a motor controller.

Hereinafter, with reference to FIGS. 5 to 14, further possible embodiments of the exhaust gas bypass device 2 will be described. Reference is made to the previous description. According to FIG. 5, the exhaust gas collecting housing 36 has a substantially triangular profile cross section. The housing wall 12 extends accordingly. The exhaust bypass pipe body 13 has an oval cross section. The exhaust end pots 16, 17 are arranged in two tip portions of the housing wall 12, while the exhaust gas bypass tube body 13 is in the region of the intermediate tip.

According to FIG. 6, the exhaust gas bypass tube body 13 again has an oval profile cross section. The opposite side longitudinal ends 34 extend adjacent to the exhaust end pots 16, 17. Compared with the embodiment of FIG. 5 here has the exhaust gas bypass tube body 13 has a much larger diameter.

According to FIG. 7, two exhaust gas guide inserts 14, which run next to one another and two, are inserted into the exhaust gas bypass tube body 13 Exhaust bypass outlets have. An exhaust guide insert 14 is disposed adjacent to the first exhaust end pot 16, while the other exhaust guide insert 14 is disposed adjacent to the second exhaust end pot 17.

Referring to FIG. 8, exhaust gas bypass tubes 13 employ two exhaust gas guide inserts 14, which differ in their profile cross section and / or in the course of their exhaust gas bypass channel 15. According to FIG. 8, one exhaust gas bypass insert 14 has a circular profile cross section, while the other exhaust gas guide insert 14 has a semicircular profile cross section.

According to FIG. 9, three exhaust gas guide inserts 14 are provided. An exhaust guide insert 14 is disposed adjacent to the first exhaust end pot 16, while a second exhaust guide insert 14 is disposed adjacent to the second exhaust end pot 17. The third exhaust guide insert 14 is located approximately centrally between the first and second exhaust end pot 16, 17. On the exhaust gas bypass tube body 13, a mounting tab 35 is attached.

As shown in Fig. 10, the exhaust bypass pipe body 13 has an elongated rectangular profile cross section. It is so cuboid. In the exhaust bypass pipe body 13 again two juxtaposed exhaust gas guide inserts 14 are used.

The embodiment according to FIG. 11 differs from the embodiment according to FIG. 10 by the cross-section of the exhaust gas guide inserts 14. An exhaust gas guide insert 14 has a circular projection. fil cross section, while the other exhaust guide insert 14 has a rectangular profile cross section.

The embodiment of FIG. 12 is similar to the embodiment of FIG. 7, to which reference is hereby made. In the embodiment according to FIG. 12, however, a fastening tab 35 is still attached to the exhaust gas bypass tube body 13.

According to FIG. 13, the exhaust system arrangement has only one exhaust end pot 16, to which the exhaust gas bypass pipe body 13 adjoins. The exhaust end pot 16 and the exhaust bypass pipe body 13 are in fluid communication with each other. At the exhaust bypass tube body 13, a mounting tab 35 is again attached. In the exhaust bypass pipe body 13, two exhaust gas guide inserts 14 are used side by side.

In the embodiment according to FIG. 14, an exhaust bypass pipe body 13 again adjoins an exhaust end pot 16. There is a flow connection between the exhaust end pot 16 and the exhaust bypass pipe body 13. In the exhaust bypass pipe body 13, an exhaust gas guide insert 14 is used. An attachment tab 35 is attached to the exhaust bypass tube body 13.

Combinations of the described embodiments with each other are possible. The at least one exhaust end pot 16, 17, the exhaust gas collection housing 36, the exhaust gas bypass pipe body 13 and / or the at least one exhaust gas guide insert 14 may have any shape. In particular, the at least one exhaust end pot 16, 17 and / or the exhaust gas bypass pipe body 13 can be positioned anywhere on the motor vehicle. The at least one exhaust gas guide insert 14 or its exhaust gas bypass outlet can also be arranged at any angle to the exhaust gas main flow direction. Also, the size ratios are to be understood only as an example.

Hereinafter, further alternative embodiments of the muffler assemblies will be described with reference to the accompanying Figs. The previous description is referenced. In the embodiment according to FIGS. 15, 16, the exhaust end pots 16, 17 each have an outer diameter which corresponds to the outer diameter of the associated exhaust manifold pipe 3 or 4 in the exhaust end pot 16 and 17, respectively , Each exhaust end pot 16, 17 also has an absorption jacket 22 and 23, respectively. In the region of the absorption jacket 22, 23, each exhaust end pot 16, 17 has an outer pipe 24 on the outside and an exhaust pipe 18, 19 on the inside. The exhaust pipes 18, 19 are provided with perforation openings 20 and 20, respectively. 21 provided at least in sections and are on the inside of the sorption jacket 22 and 23 at. The outer tubes 24, 25, however, are on the outside of the absorption jacket 22 and 23 at.

Upstream of the exhaust end pots 16, 17, a connecting piece 7 and 8, respectively, is connected to the exhaust manifold device 1. The first connecting piece 7 and the second connecting piece 8 are in fluid communication with one another via an exhaust gas collecting region 9. In turn, an exhaust gas bypass body 13 is in flow communication with the exhaust gas collecting region 9 and runs essentially perpendicular to the exhaust end pot 16 or 17. In the exhaust bypass pipe body 13 the exhaust gas is soundproofed and low-emission. A corresponding muffler is arranged inside.

The connection between the exhaust manifold device 1 and the exhaust end pots 16, 17 is substantially seamless in this embodiment. The operation and the function of this exhaust system arrangement are essentially analogous to the exhaust system arrangement according to FIGS. 1, 2. Reference is hereby made. Hereinafter, another embodiment will be described with reference to FIGS. 17, 18. This embodiment is similar to the embodiment according to FIGS. 15, 16, so reference is made to the description thereof. Compared with the embodiment according to FIGS. 15, 16, in the embodiment according to FIGS. 17, 18 the exhaust bypass tube body 13 runs parallel to the exhaust end pots 16, 17. It is advantageous if the exhaust gas bypass Tubular body 13 adjacent and substantially abutting along the exhaust end pots 16, 17 extends. The exhaust bypass pipe body 13 here has, for example, an oval cross-section. Other cross sections or shapes are possible.

Hereinafter, another embodiment will be described with reference to FIGS. 19, 20. This embodiment is similar to the embodiment according to FIGS. 17, 18. Reference is made to the description of the embodiment according to FIGS. 17, 18.

In the embodiment according to FIGS. 19, 20, no absorption jackets 22, 23 are provided. In the exhaust end pots 16, 17 thus takes place no significant soundproofing. Perforation openings 20, 21 are also absent.

In this embodiment, the exhaust gas is again sound-insulated and calmed in the exhaust gas bypass pipe body 13, which is connected laterally to the exhaust gas manifold pipes 3 and 4 via the connection pieces 7, 8.

Claims

claims

1. Silencer arrangement for exhaust systems of motor vehicles with internal combustion engine

a) with at least one exhaust end pot (16, 17), which has i) at least one exhaust pipe (18, 19) for guiding exhaust gas, and

ii) at least one actuatable adjusting device (26, 27), the

- Is associated with the at least one exhaust end pot (16, 17), and

- At least one movable between an exhaust gas closing position and an exhaust gas release position Verstell- body (30, 31) for influencing a flow of the exhaust gas in the at least one exhaust pipe (18, 19), and

b) with an exhaust gas bypass device (2) having

i) at least one connecting piece (7, 8) arranged upstream of the at least one exhaust end pot (16, 17) for connection to an exhaust manifold device (1), and ii) at least one exhaust gas bypass tube body ( 13), the

- Is in flow communication with the at least one connection piece (7, 8), and

- Has at least one exhaust gas bypass outlet for discharging the exhaust gas from the muffler assembly.

2. silencer arrangement according to claim 1, characterized in that the at least one connecting piece (7, 8) upstream of the at least one exhaust end pot (16, 17) is connected.

3. silencer arrangement according to claim 1 and 2, characterized in that the at least one exhaust gas bypass tube body (13) at least partially laterally adjacent to the at least one exhaust end cup (16, 17).

4. Silencer arrangement according to one of the preceding claims, characterized in that the exhaust gas in the exhaust gas bypass tube body (13) is guided at least partially meandering.

Silencer arrangement according to one of the preceding claims, characterized in that the exhaust gas bypass device (2) has an exhaust gas collecting region (9) which extends between the at least one connecting piece (7, 8) and the exhaust gas Bypass tube body (13) is located.

Silencer arrangement according to one of the preceding claims, characterized in that the exhaust gas collecting area (9) is provided laterally next to the at least one connecting piece (7, 8).

Silencer arrangement according to one of the preceding claims, characterized in that the exhaust gas bypass device (2) has at least one motor vehicle holding means (35) for fixing the silencer arrangement to a motor vehicle.

Silencer arrangement according to one of the preceding claims, characterized in that when using the muffler arrangement, the exhaust gas flows through the at least one exhaust gas bypass tube body (13) when the at least one adjusting body (30, 31) in its exhaust Closed position.

9. Silencer arrangement according to one of the preceding claims, characterized in that when using the muffler arrangement, the exhaust gas flows through at least one of the exhaust pipes (18, 19) when at least one of the adjusting body (30, 31) in its exhaust gas release position is located.

10. Silencer arrangement according to one of the preceding claims, characterized by a first and a second exhaust end pot (16, 17), wherein the exhaust gas bypass device (2) upstream of the first exhaust end pot (16) connected, first connecting piece (7) and a second connecting piece (8) connected upstream to the second exhaust end cup (17), wherein preferably the exhaust gas bypass tube body (13) substantially between the first exhaust pipe End pot (16) and the second exhaust

End pot (17) is arranged.

1 1. Silencer arrangement according to claim 10, characterized in that the first exhaust end pot (16) and the second exhaust end pot (17) is associated with an actuatable adjusting device (26, 27).

12. Silencer arrangement according to one of the preceding claims, characterized in that the cross section of the at least one exhaust pipe (18, 19) over the axial length in the downstream direction in the at least one exhaust end pot (16, 17) extended.

13. Silencer arrangement according to one of the preceding claims, characterized in that in the exhaust gas bypass device (2) the exhaust gas is sound-insulated and degassed. 14. Silencer arrangement according to one of the preceding claims, characterized in that the at least one exhaust gas bypass tube body (13) has a substantially constant cross section over the axial longitudinal extent. 15. Exhaust system arrangement for motor vehicles with internal combustion engine,

a) with an exhaust manifold device (1), and

b) with a silencer arrangement according to one of the preceding claims,

c) wherein the muffler assembly downstream to the exhaust gas

Manifold device (1) is connected.

16. Exhaust system arrangement according to claim 15, characterized in that the at least one connecting piece (7, 8) between the exhaust manifold device (1) and the at least one exhaust puff end cup (16, 17) is arranged ,