WO2010025927A2

WO2010025927A2 - Fluid guiding device and muffler, and exhaust gas system having such a fluid guiding device

Info

Publication number: WO2010025927A2
Application number: PCT/EP2009/006404
Authority: WO
Inventors: Lothar Schmitt; Philip Zach; Udo Gartner
Original assignee: Woco Industrietechnik Gmbh; Sure & Schmitt Gmbh
Priority date: 2008-09-04
Filing date: 2009-09-03
Publication date: 2010-03-11
Also published as: WO2010025927A4; EP2161424A1; WO2010025927A3

Abstract

The invention relates to a fluid guiding device, comprising at least one line (100), particularly in the form of a metal line, having an inlet and an outlet, and a housing (200) connected to the line by a connecting device (300, 400, 500) in the area of the inlet and/or outlet, particularly in the form of a plastic housing, wherein the connecting device in the area of the inlet and outlet of the line is designed to mechanically and thermally decouple the housing from the line. The invention further relates to a muffler, and to an exhaust gas system having such a fluid guiding device.

Description

Fluidfuhrungseinrichtung and muffler and exhaust system with such a Fluidfuhrungseinrichtung

description

The present invention relates to a Fluidfuhrungseinrichtung, comprising at least one line, in particular in the form of a metal line, with an input and an output and connected to the line via a connecting device in the region of the input and / or output housing, in particular in the form of a plastic housing; and a muffler and an exhaust system with such a Fluidfuhrungseinrichtung.

In the prior art numerous mufflers are each known with an inner and an outer tube, wherein the outer tube concentrically extends around the inner tube and can also be considered as a housing. For example, EP 1 395 743 B1 discloses a pipe silencer for noise-laden gases, in particular for an intake pipe and / or an exhaust pipe of an internal combustion engine, with an inner pipe having openings, at least one resonance chamber between the inner pipe and an outer pipe and an insert with a plurality from unilaterally closed openings in the inner tube. Such a structure allows a multiple combination of reflection mufflers and resonance mufflers to tune a frequency range to be damped in a compact design.

EP 0 834 01 1 B2 discloses an intake silencer with an intake pipe which is surrounded by a single, preferably two-shell, resonator housing over the entire axial length on which damping is effected. Within this resonator, the intake pipe is provided in known manner with openings that the

BESTATIGUNGSKOPIE Pass through the wall of the intake pipe open on both sides and connects the interior of the intake pipe with the interior of Resonatorkammern formed in the resonator. The wall thickness of the intake pipe, or the inner wall height of the openings in the wall of the intake pipe in coordination with the cross-sectional area of the openings, the volume of the connected resonator and the width and frequency position of the tuned resonance absorption band is selected, so that the openings and the resonator on one form the tuned to frequency band tuned Helmholtz resonator.

In the non-prepublished US 11 / 937,530 a muffler is described, comprising a metal exhaust pipe with a plurality of perforations and at least one radially outwardly extending sealing flange at each of its two ends, a plastic housing supporting the metal exhaust pipe, the plurality surrounds perforations and has at least one radially inwardly extending flange portion at each of its two ends, and thermal insulation located axially at each end between the pipe flange and the housing flange, radially between the housing flange and the metal exhaust pipe and radially in between Pipe flange and the plastic housing extends, has. In addition, an acoustic insulation between the metal exhaust pipe and the plastic housing is arranged. For example, a damping structure is used, as already described in EP 0 834 011 B2. Although this structure has proven itself in principle, but is quite expensive to produce, requires a lot of space and is expensive.

It is therefore an object of the present invention to further develop the generic fluid guiding device in such a way that it overcomes the disadvantages of the prior art. In particular, a simple, inexpensive and compact design should be provided.

This object is achieved in that the connecting device is formed in the region of the input and output of the line for mechanical and thermal decoupling of the housing of the line.

It is preferred that in the region of the input and / or output, the connecting device in each case at least a first component of a poor heat conductor, in particular in the form of at least one fiber body and / or at least one ceramic body, for thermal decoupling and at least a second elastic and / or resilient com- Nente, in particular in the form of at least one elastomeric element and / or at least one spring element, for mechanical decoupling comprises.

It can be provided in turn that the fiber body comprises at least one fiber molded part and / or mineral and / or organic fibers, wherein the fiber body is preferably formed as a glass fiber body, and / or the ceramic body is pressed, and / or the elastomer element is a seal, in particular Form of a silicone seal comprises, and / or the spring element comprises at least one stainless steel sheet and / or a metal stamped and bent part.

Furthermore, it can be provided that the fiber body is attached or glued over a positive connection, and / or the ceramic body is attached and / or glued via a positive connection, and / or the elastomer element is injection molded onto plastic and / or is attached via a positive connection, and / or the spring element is welded to the line and / or attached via a positive connection.

The invention also proposes that the housing comprises at least one first section surrounding the line at least partially and at least one second section between the first section and the connection device both in the entrance area and in the outlet area of the line, wherein preferably the first section has at least one second section in a molded or welded.

It can be provided that the first section extends axially and concentrically around at least part of the line.

Preferred embodiments of the invention are also characterized by at least one fastening device, preferably comprising a plastic suspension or - bracket, which is connected to the plastic housing, in particular at least a second portion of the plastic housing, in particular by gating or welding.

Embodiments of the invention may also be characterized by at least one anti-rotation between at least two components of the connecting device and / or between at least one component of the connecting device and the housing, in particular at least a second portion of the housing, the rotation preferably at least one positive connection between a projection and a recess comprises, and / or the rotation relative to the line and / or the housing has at least one asymmetry.

It can be provided that at least two projections are provided, which preferably extend in a first plane or in a first plane and a second plane perpendicular thereto, in order to engage in two complementarily shaped recesses for providing an anti-rotation.

The invention also proposes that the rotation-preventing at least one projection of the housing, in particular at least a second portion of the housing, at least one projection of the fiber body, at least one projection of the ceramic body, at least one projection of the elastomeric body and / or at least one projection of the spring element , wherein preferably the projection of the spring element by a, in particular bent, extension of the spring element is provided, and / or the rotation at least one recess in the housing, in particular in at least a second portion of the housing, at least one recess in the fiber body, at least one recess in the ceramic body, at least one recess in the elastomer element and / or at least one recess in the spring element.

According to the invention, it is also proposed that the housing, in particular at least a second section of the housing, engage the fiber body and / or the ceramic body, in particular under at least partial interposition of the elastomer element.

Furthermore, it can be provided that the fiber body and / or the ceramic body in longitudinal section an L-shape and / or a step, in particular for attacking the housing, wherein the step preferably tapers, in particular to the respective free end of the L-shape ,

It can also be provided that via the shape and / or mass of the fiber body and / or ceramic body, the thermal decoupling is adjustable, and / or the fiber body and / or the ceramic body at least between the spring element and the housing, in particular at least a second portion of Housing, extending or extending. With the invention is further proposed that the elastomeric element is sprayed onto the housing, in particular on at least a second portion of the housing, or mounted on the fiber body or the ceramic body.

According to the invention can be provided that the spring element is attached to the line, and / or the shape and / or the length of the spring element, the mechanical decoupling is adjustable, wherein the spring element preferably from a stamped part by bending and / or with a longitudinal section with a L, S or U shape is made.

Furthermore, it is proposed that the spring element engage the housing, in particular at least a second section of the housing, or engage in the same or the same, directly and / or with the interposition of the elastomer element.

It can also be provided that the housing, in particular at least a second section of the housing, comprises a recess and / or at least one projection for the elastomer element and / or the spring element.

In addition, it is proposed that the elastomer element comprises a recess for the spring element.

Embodiments of the invention may further be characterized in that the spring element, at least from the line to the housing, in particular radially and / or the fiber body and / or the ceramic body cross and / or the elastomeric element, extends, preferably on the respective outer side of the connecting device and / or after a conversion.

According to the invention, it is preferably proposed that the components of the connecting device for the input region and / or the components of the connecting device for the output region are each provided as an assembly, and / or the components of the connecting device together with the associated second section of the housing for the input region and / or the components of the connecting device together with the associated second section of the housing for the output region are each provided as an assembly. Furthermore, it is preferable for the components of the connecting device to be designed or arranged in the input region in mirror symmetry with the components of the connecting device in the output region.

The invention also proposes a silencer with a fluid guide device according to the invention and at least one sound damping device. The sound damping device can be known measures, as described for example in EP 0 834 Ol 1 B2.

Finally, the invention also provides an exhaust system with a silencer according to the invention.

The invention is thus based on the surprising finding that not only a thermal decoupling but also a mechanical decoupling is effected between a (metal) line and a (plastic) housing of a fluid guiding device, which is preferably used in a muffler of an exhaust system must be present. Tightness and security against rotation should preferably also be given.

It has proved to be particularly advantageous to provide in the region of the two ends of the line between the same and the housing in each case the following components of a connecting device, preferably prefabricated in the form of an assembly:

- At least one (glass) fiber body or ceramic body whose shape and / or mass for adjusting the thermal decoupling is selectable; and

at least one spring element, preferably in the form of a stainless steel sheet whose shape and / or length determines the mechanical decoupling and selectively overlaps all components of the connecting device at the respective externally accessible end for corrosion protection; and or

at least one elastomer element, in particular in the form of a silicone gasket, which not only fulfills a sealing function, but also provides mechanical decoupling, the mechanical decoupling being optimized when both the elastomer element and the spring element are used, in particular the spring element in or ., On or engages the elastomeric element. For prefabrication of an assembly, a silicone gasket may be mounted on a glass fiber body or ceramic body. In addition, a glass fiber body or ceramic body can be positively connected to a spring element which, in particular by a reversal, either directly to the plastic housing or a silicone gasket sprayed on it can attack. It is also possible to pre-assemble a portion of the plastic housing together with the assembly to later weld this portion with the rest of the plastic housing, for example. On this section, the silicone gasket may be sprayed alternatively.

The stainless steel sheet can be welded onto the metal pipe for fixation. Furthermore, a holder or suspension can be injection-molded onto the plastic housing in order to use the fluid-guiding device, for example, as part of an exhaust system in a motor vehicle. Preferably, the holder or suspension is molded onto said portion of the plastic housing.

To prevent rotation, a positive connection between a projection and a recess can be used between any two components of the connection device and / or between at least one of the components and the housing. Preferably, at least two projections which are opposite in cross-section are provided.

Advantageously, all components of the connecting device as well as the line and the housing are rotationally symmetrical. A particularly simple handling results when the various components of the connecting device are arranged at one end of the line also mirror-symmetrical to those at the other end of the line. This also reduces the number of different components.

To provide the greatest possible flexibility, different fiber bodies, ceramic bodies, elastomer elements, spring elements and / or housing sections can be provided, which can be assembled according to requirements in the specific case, according to a modular principle. It is particularly advantageous if the elastomer element as a silicone seal on the housing in the form of a plastic housing or a portion of the same sprayed and / or the spring element is rewritten depending on the dimensioning. For easier assembly, the spring element is also accessible from the outside, in particular for the purpose of re-mortaring. Further features and advantages of the invention will become apparent from the following description, are exemplified in the exemplary embodiments of the invention with reference to schematic drawings. Showing:

Figure Ia is a partial longitudinal sectional view through a first fluid guide device according to the invention;

FIG. 1 b shows a cross-sectional view through an elastomeric seal of the fluid-guiding device of FIG. 1 a;

FIG. 2a is a partial longitudinal sectional view through a second fluid guiding device according to the invention with a prefabricated assembly;

Figure 2b is a view as Figure 2a, but in which the assembly is formed substantially mirror-symmetrical;

FIGS. 3a to 3d are partial longitudinal sectional views of four different fluid guiding devices according to the invention;

FIG. 4a is a partial longitudinal sectional view of an eighth fluid guiding device according to the invention;

FIG. 4b shows a cross-sectional view of a stainless steel sheet of the fluid guiding device of FIGS. 4a and 4b

Figure 4c is a cross-sectional view of an alternative stainless steel sheet.

Figure Ia shows an end portion of a first fluid guide device according to the invention for an exhaust system with an exhaust pipe 1 made of metal, a plastic housing 2 and a connecting device between the exhaust pipe 1 and the plastic housing 2, consisting of a ceramic body 3 for thermal decoupling and an elastomeric seal 4 for mechanical decoupling and Poetry.

Alternatively, the exhaust pipe could also be made of plastic, while instead of a plastic housing, a metal housing could be used. Instead of a ceramic body, a fiber body made of mineral or organic fibers could be used. For example, in the form of a glass fiber molded body, are used. It should also be noted that the exhaust pipe can be constructed from a plurality of pipe sections, the plastic housing from a plurality of housing sections, and / or the ceramic body from a plurality of ceramic body sections. In principle, there are no specifications for the symmetry of said sections.

The ceramic body 3 is provided in a longitudinal section substantially with an L-shape, wherein the outwardly directed portion of the L-shape tapers conically. The elastomeric seal 4 is, as shown in detail in FIG. 1b, designed with a plurality of anti-rotation recesses 4a and anti-rotation projections 4b. Here engage in the Verdrehsicherungsausnehmungen 4a corresponding projections 2a of the plastic housing 2, while the Verdrehsicherungsvorsprünge 4b engage in corresponding recesses 3a of the ceramic body 3.

For the construction of the fluid guiding device shown in Figure Ia, the elastomeric seal 4 can be mounted on the ceramic body 3 and then pushed together with the ceramic body 3 on the exhaust pipe 1. Subsequently, the plastic housing 2 can be placed in the form of two half-shells on the ceramic body 3 together with the elastomer seal 4. Finally, then the two half-shells must still be connected to each other, for example by means of a flange, not shown.

FIG. 2 a shows a second fluid guidance device according to the invention, in which a mechanical decoupling is not effected via an elastomeric seal but a spring element. More specifically, Figure 2a shows a metal exhaust pipe 10 about which a plastic housing 20 is concentrically disposed, consisting of a first substantially tubular portion and two second portions each forming an end cap 21, only one end portion with an end cap being visible. The end cap 21 can have a recess 22 for pushing onto the tubular first section, wherein the two sections can be welded together. Furthermore, a suspension 23 is molded onto the end cap 21, which facilitates use in an exhaust system.

The connecting device between the exhaust pipe 10 and the plastic housing 20 is in turn composed at the end shown in Figure 2a of a ceramic body 3 and a stainless steel sheet 40 providing the spring element, wherein the stainless steel sheet 40 is formed in the form of a bending stamped part. To facilitate assembly, an assembly 60 is prefabricated comprising the ceramic body 30, the stainless steel sheet 40 and the end cap 21. This assembly 60 is made by first inserting the ceramic body 30 into a substantially U-shaped stainless steel sheet, which then comprises three spring sections 40, 42, and 43. Then a free end of the stainless steel sheet 40 is partially bent, namely for providing Verdrehsi- tion projections forming spring portions 44, so that then the end cap 21 with recesses 24 can be placed on the stainless steel sheet 40 including ceramic body 30 until the end cap 21 on a step 31st of the ceramic body 30 comes to rest.

The assembly 60 can then be fixed by, as already mentioned, a welded joint between the end cap 21 and the remaining plastic housing 20 is generated, while the stainless steel sheet 40 can be welded in the region of its spring portion 41 on the exhaust pipe 10.

A third fluid guiding device according to the invention, which is shown in FIG. 2 b, basically comprises the same components as the second fluid guiding device between the exhaust pipe 10 and the plastic housing 20, namely an end cap 21 'on which the suspension 23 is molded and which in the region of a recess 22 'is welded to the remaining plastic housing 20, a ceramic body 30' with a step 31 ', a stainless steel sheet 40' with four spring sections 41 'to 44' and an assembly 60 '. The difference between the fluid guiding devices of FIGS. 2a and 2b is, on the one hand, that the assemblies 60 and 60 'have a mirror-symmetrical design. In the case of the assembly 60, the stainless steel sheet 40 is easily accessible from outside the fluid guide means for mounting, wherein the spring portion 42 also surrounds the ceramic body 30 for corrosion protection, which in the case of the assembly 60 'is not the case, especially since the spring portion 43' the free end of the exhaust pipe 10 is remote relative to the end cap 21 '. The structure according to FIG. 2a is therefore to be preferred in principle. On the other hand, the assembly 60 'has no measure to ensure an anti-rotation, which is less advantageous because the spring portion 44' is formed annular.

The four fluid guiding devices according to the invention shown in FIGS. 3 a to 3 d each comprise the same components of a connecting device between an exhaust pipe 100 and a plastic housing 200, 200 ', 200 ", 200", namely one ceramic body 300, 300', 300 "per exhaust pipe end. 300 "', a stainless steel sheet 400, 400', 400", 400 '"and an elastomer body 500, 500', 500", 500 '". The difference lies in the concrete amount taltung of these components. Common to all four embodiments, however, that the plastic housing 200, 200 ', 200 ", 200'" on a step 301, 301 ', 301 ", 301'" of the ceramic body 300, 300 ', 300 ", 300'" rests positively , wherein the respective stage tapers to its corresponding free end, and the stainless steel sheet 400, 400 ', 400 ", 400'" on the one hand welded to the exhaust pipe 100 and on the other hand to the plastic housing 200, 200 ', 200 ", 200'" , at least over the elastomeric body 500, 500 ', 500 ", 500'", attacks. Afterwards, the differences are worked out:

The stainless steel sheet 400 of FIG. 3 a is formed from a stamped part and then bent into an L-shape with the spring sections 401 and 402 for receiving the ceramic body 300. By further bending, the spring portions 403 and 404 are formed, by which the spring rate is determined, so that the spring portion 403 presses the elastomeric body 500 against a projection 201 of the plastic housing 200 to ensure a tightness, while the spring portion 404 through a recess in the projection 201 extends. The spring portion 401 is welded onto the exhaust pipe 100; and the elastomeric body 500 is sprayed onto the protrusion 201 in the form of a silicone gasket.

The stainless steel sheet 400 ', as shown in Figure 3b, is formed from a substantially U-shaped stamped and bent part with the sections 401', 402 'and 404', while another spring portion 403 'is produced by Umbörtelung. Before said Umbörtelung the ceramic body 300 'is introduced into the stainless steel sheet 400' in order to then expose the plastic housing 200 'on the step 301', at the same time the spring portion 404 'engages in a recess of a projection 201'a of the plastic housing 200'. On the plastic housing 200 'is between two further projections 201'b and 201'c of the elastomer body 500' is sprayed. The elastomer body 500 'has a recess 501' for the attack of the stainless steel sheet 400 'after said Umbörtelung the spring portion 403'.

The construction of the sixth fluid guidance device according to the invention shown in FIG. 3c can be assembled as follows:

The ceramic body 300 "is first pushed onto the exhaust pipe 100. The plastic housing 200" is then placed on the step 301 "of the ceramic body 300". In a recess 202 "of a protrusion 201" of the plastic housing 200 ", the elastomeric body 500" is injected. This elastomeric body 500 "has a recess 501" for the precious metal The stainless steel sheet 400 "is designed with a substantially S-shape in cross-section and can be placed on the ceramic body 300 after the plastic housing 200" has been placed on it "are also pushed onto the exhaust pipe 100, wherein the spring portion 401" as long as pushed along the exhaust pipe 100 until the spring portion 402 "abuts the ceramic body 300" and the spring portion 403 "in the recess 501" of the elastomeric body 500 "comes to rest. Then, the spring portion 401 "is welded to the exhaust pipe 100.

A particularly simple construction of the seventh fluid guiding device according to the invention is shown in FIG. 3d. In this case, a substantially annular disk-shaped stainless steel sheet 400 '"is welded onto the exhaust pipe 100. The likewise annular ceramic body 300' 'has a substantially L-shape in its cross-section through its ring and is pushed onto the exhaust pipe 100, namely Abutting the spring portion 402 '' of the stainless steel sheet 400 '". In the region of a projection 201 '"of the plastic housing 200'" is the elastomeric body 500 "'with a recess 501'" a arranged. The elastomer body 500 '' 'also has a multiplicity of further recesses 501' 'b into which a respective spring portion 404' 'forming a projection engages in order to secure the rotation 300 '"up.

For completeness, it should also be noted that the respective components of the fluid guide device of Figure 3d as well as all other embodiments are rotationally symmetrical, preferably the exhaust pipe 100 has a circular cross-section and also the projections 201 '"and 404'" along a circle, similar the complementary recesses 501a '"and 501b'".

Finally, FIG. 4 a shows an eighth fluid guiding device according to the invention, which differs in several respects from the previously discussed fluid guiding devices. On the one hand, it should be noted that two stainless steel plates 4000a, 4000b, which are L-shaped in cross section, are applied over welds 4000c on exhaust pipe 1000. Between the two stainless steel plates 4000a and 4000b, a ceramic body 300 is arranged, which, however, only has a direct contact with the not freely accessible from the outside stainless steel sheet 4000b. On the ceramic body 3000, a hose-like elastomer body 5000 is mounted in the region of its stage 3001, to which after a Umbörtelung engages the externally accessible stainless steel sheet 4000a, which thus provides corrosion protection. The plastic housing 2000 in turn has two projections 2001 and 2002, wherein the projection 2001 in the direction of the stainless steel sheet 4000b extends and for engaging the same has a plurality of recess 2003, while complemented by a plurality of extensions or protrusions 4001b for preventing rotation of the stainless steel sheet 4000b, as shown in Figure 4b, are located. As an alternative to this, an electric sheet steel 4000'b with recesses 400'b, as shown in FIG. 4c, could be used, in which case the plastic housing would then have to provide complementary recesses. In any case, the plastic housing 2000 still includes the second projection or extension 2002, which propagates in the opposite direction as the projection 2001 and rests on the elastomer body 5000 and thus the step 3001.

Many further embodiments of a fluid guiding device according to the invention are conceivable, but they all have in common that in the area of the inlet and outlet of a metal exhaust pipe components of a connecting device are each arranged for connection to a plastic housing, which ensure at least mechanical and thermal decoupling , Preferably, furthermore, a tightness and security against rotation is ensured by said components. Depending on the requirements, in particular the available space, different geometric configurations of said components can be selected.

The features disclosed in the foregoing description, in the claims and drawings may be essential both individually and in any combination for the realization of the invention in its various embodiments.

LIST OF REFERENCE NUMBERS

Exhaust pipe plastic housing a projection ceramic body a recess elastomer seal a Verdrehsicherungsausnehmungb Verdrehsicherungsvorsprung 0 exhaust pipe 0 plastic housing 1, 21 'end cap 2, 22' recess 3 suspension 4 recess 0, 30 'ceramic body 1, 31' stage 0, 40 'stainless steel 1, 41' spring section 2 , 42 'spring section 3, 43' spring section 4, 44 'spring section 0, 60' assembly 00 exhaust pipe 00, 200 ', 200' 200 "plastic housing 01, 201'a, 201'b, 201'c, 201", 201 "'Projection02' recess 00, 300 ', 300 ", 300"' ceramic body 01, 301 ', 301 ", 301"' stage 00, 400 ', 400 ", 400'" stainless steel sheet 1, 401 ', 401 "spring section 2 , 402 ', 402 ", 402'" spring section 3, 403 ', 403 "spring section 404, 404 ¹ , 404 ¹ "spring section

500, 500 ', 500 ", 500'" elastomer body

501 ', 501 ", 50I ¹¹¹ E, 501 ^m b recess

502 "lead

1000 exhaust pipe

2000 plastic housing

2001 advantage

2002 extension

2003 recess

3000 ceramic body

3001 level

4000a, 4000b, 4000'b stainless steel sheet

4000c weld

4001b lead

400 lb recess

5000 elastomer body

5001 recess

5002 shoulder

Claims

claims

Fluid guidance device, comprising at least one line, in particular in the form of a metal line (1, 10, 100, 1000), with an input and an output and with the line (1, 10, 100, 1000) via a connecting device in the region of Input and / or output connected housing, in particular in the form of a plastic housing (2, 20, 200, 200 ', 200 ", 200'", 2000), characterized in that the connecting device in the region of the input and output of the line (1, 10, 100, 1000) for mechanical and thermal decoupling of the housing (2, 20, 200, 200 ', 200 ", 200'", 2000) from the line (1, 10, 100, 1000) is formed.

2. Fluidfuhrungseinrichtung according to claim 1, characterized in that in the region of the input and / or output, the connecting device in each case at least one first component of a poor heat conductor, in particular in the form of at least one fiber body and / or at least one ceramic body (3, 30, 30 '). , 300, 300 ', 300 ", 300'", 3000), for thermal decoupling and at least one second elastic and / or resilient component, in particular in the form of at least one elastomer element (4, 500, 500 ', 500 ", 500'" , 5000) and / or at least one spring element (40, 400, 400 ', 400 ", 400'", 4000a, 4000b, 4000'b), for mechanical decoupling.

3. Fluidfuhrungseinrichtung according to claim 2, characterized in that the fiber body comprises at least one fiber molded part and / or mineral and / or organic fibers, wherein the fiber body is preferably formed as a glass fiber body, and / or the ceramic body (3, 30, 30 ', 300 , 300 ', 300 ", 300"', 3000), and / or the elastomer element comprises a seal, in particular in the form of a silicone gasket (4, 500, 500 ', 500 ", 500'", 5000), and or the spring element at least one stainless steel sheet (40, 400, 400 ', 400 ", 4000a, 4000b, 4000'b) and / or a metal stamped and bent part (40, 400, 400', 400", 4000a, 4000b, 4000 'b).

4. Fluidfuhrungseinrichtung according to claim 2 or 3, characterized in that the fiber body is attached or glued via a positive connection, and / or the ceramic body (3, 30, 30 ', 300, 300', 300 ", 300 '", 3000) is attached and / or adhesively bonded by means of a positive connection, and / or the elastomer element (4, 500, 500 ', 500 ", 500'", 5000) is injection-molded onto plastic and / or is attached via a positive connection, and / or the spring element ( 40, 400, 400 ', 400 ", 400'", 4000a, 4000b, 4000'b) on the line

(10, 100, 1000) is welded on and / or attached via a positive connection.

5. Fluidfuhrungseinrichtung according to any one of the preceding claims, characterized in that the housing (2, 20, 200, 200 ', 200 ", 200'", 2000) at least one line (1, 10, 100, 1000) at least partially surrounding first section and both in the entrance area and in the exit area of the duct (1, 10, 100, 1000) at least one second section (21, 21 ') between the first section and the connecting device, wherein preferably the first section with at least one second section (21, 21 ') is formed or welded in one.

6. Fluidfuhrungseinrichtung according to claim 5, characterized in that the first portion extends axially and concentrically around at least a part of the conduit (1, 10, 100, 1000).

7. Fluidfuhrungseinrichtung according to any one of the preceding claims, characterized by at least one fastening device, preferably comprising a plastic suspension or -halterung (23) which is connected to the plastic housing, in particular at least a second portion (21, 21 ') of the plastic housing, in particular by Gating or welding.

8. Fluidfuhrungseinrichtung according to any one of the preceding claims, characterized by at least one rotation between at least two components (3, 4, 4, 2, 40, 50, 400 '", 500'") of the connecting means and / or between at least one component (4 , 500 '", 4000b) of the connecting device and the housing (2, 200'", 2000), in particular at least a second section of the housing, wherein the Anti-rotation preferably at least one positive connection between a projection (2a, 4b, 44, 201 '", 404'", 4001b) and a recess (3a, 4a, 24, 501 ^m a, 501 "'b, 2003, 400 l'b ) and / or the rotation lock relative to the line (1, 10, 100, 1000) and / or the housing (2, 20, 200, 200 ', 200 ", 200'", 2000) has at least one asymmetry.

9. Fluidfuhrungseinrichtung according to claim 8, characterized in that at least two projections (2a, 4b, 44, 201 "', 404'", 4001b) are provided which are preferably in a first plane or in a first plane and a perpendicular thereto extend second plane to engage in two complementary shaped recesses (3a, 4a, 24, 501 "'a, 501"' b, 2003, 4001'b) to provide an anti-rotation.

10. Fluidfuhrungseinrichtung according to claim 8 or 9, characterized in that the rotation of at least one projection (2a, 201 '") of the housing (2, 200'"), in particular at least a second portion of the housing, at least one projection of the fiber body, at least a projection of the ceramic body, at least one projection (4b) of the elastomeric body (4) and / or at least one projection (44, 404 '", 4001b) of the spring element (40, 400'", 4000b), wherein preferably the projection (44 ) of the spring element (40) by a, in particular bent, extension of the spring element (40) is provided, and / or the rotation at least one recess (24, 2003) in the housing (20, 2000), in particular in at least a second portion of the Housing, at least one recess in the fiber body, at least one recess (3 a) in the ceramic body (3), at least one recess (4a, 501 "'a, 501"' b) in the elastomeric element (4, 500 '") and /or at least a recess (400 l'b) in the spring element (4000'b) comprises.

11. Fluidfuhrungseinrichtung according to one of claims 2 to 10, characterized in that the housing (2, 20, 200, 200 ', 200 ", 200'", 2000), in particular at least a second portion (21,21 ') of the housing (2, 20, 200, 200 ', 200 ", 200'", 2000), to the fiber body and / or the ceramic body (3, 30, 30 ', 300, 300', 300 ", 300"', 3000) , in particular under at least partially intermediate order of the elastomer element (4, 400, 400 ', 400 ", 400"', 4000), attacks.

12. Fluidfuhrungseinrichtung according to one of claims 2 to 11, characterized in that the fiber body and / or the ceramic body (3, 30, 30 ', 300, 300', 300 ", 300 '", 3000) in longitudinal section an L-shape and / or a step (31, 31 ', 301, 301', 301 ", 301 '", 3001), in particular for attacking the housing (2, 20, 200, 200', 200 ", 200 '", 2000) , wherein the step (31, 31 ', 301, 301', 301 ", 301" ', 3001) preferably tapers, in particular to the respectively free end of the L-shape.

13. Fluidfuhrungseinrichtung according to any one of claims 2 to 12, characterized in that on the shape and / or mass of the fiber body and / or ceramic body, the thermal decoupling is adjustable, and / or the fiber body and / or the ceramic body (30, 30 ', 300, 300 ', 300 ", 300'", 3000) at least between the spring element (40, 40 ', 400, 400', 400 ", 400 '", 4000a, 4000b) and the housing (20, 200, 200 ', 200 ", 200'", 2000), in particular at least a second portion (21, 21 ') of the housing (20) extends or extend.

14. Fluidfuhrungseinrichtung according to any one of claims 2 to 13, characterized in that the elastomeric element (4, 500, 500 ', 500 ", 500'", 5000) on the housing (200, 200 ', 200 "), in particular at least a second portion of the housing, sprayed or mounted on the fiber body or the ceramic body (3, 300 '", 3000).

15. Fluidfuhrungseinrichtung according to one of claims 2 to 14, characterized in that the spring element (40, 40 ', 400, 400', 400 ", 400 '", 4000a, 4000b) attached to the line (10, 100, 1000) is, and / or on the shape and / or length of the spring element (40, 40 ', 400, 400', 400 ", 400 '", 4000a, 4000b), the mechanical decoupling is adjustable, wherein the spring element (40, 40 ', 400, 400', 400 ", 400 '", 4000a, 4000b) is preferably made of a stamped part by bending and / or with a longitudinal section having an L, S or U shape.

16. Fluidfuhrungseinrichtung according to one of claims 2 to 15, characterized in that the spring element (40, 40 ', 400, 400', 400 ", 400 '", 4000a, 4000b) to the housing (20, 200, 200', 200 ", 200 '", 2000), in particular at least a second portion of the housing, engages or engages in the same or the same, directly and / or with the interposition of the elastomer element (500, 500 ', 500 ", 500'", 5000).

17. Fluidfuhrungseinrichtung according to one of claims 2 to 16, characterized in that the housing (2, 200 ', 200 ", 200"'), in particular at least a second portion of the housing, a recess (202 ") and / or at least one Projection (2a, 201'a, 201'b, 201 "'a) for the elastomeric element (4, 500', 500", 500 '") and / or the spring element (400', 400").

18. Fluidfuhrungseinrichtung according to one of claims 2 to 17, characterized in that the elastomeric element (500 ', 500 ") comprises a recess (501', 501") for the spring element (400 ', 400 ").

19. Fluidfuhrungseinrichtung according to one of claims 2 to 18, characterized in that the spring element (40, 40 ', 400, 400', 400 ", 400 '", 4000a, 4000b) at least from the line (10, 100, 1000 ) to the housing (20, 200, 200 ', 200 ", 200'", 2000), in particular radially and / or the fiber body and / or the ceramic body (30, 300 ', 300 ", 300'", 3000) across and / or the elastomeric element (500, 500 ', 500 ", 500'", 5000) acting extends, preferably on the respective outer side of the connecting device and / or after a Umbörtelung.

20. Fluidfuhrungseinrichtung according to any one of the preceding claims, characterized in that the components of the connecting means for the input area and / or the components of the connecting means for the output area each as an assembly (60, 60 ') is provided or are, and / or the Components of the connecting device together with the associated second section of the housing for the input area and / or the components of the connecting device together with the associated second section of the housing for the output area are each provided as an assembly (60, 60 ').

21. Fluid guiding device according to one of the preceding claims, characterized in that the components of the connecting device are formed or arranged in the input region mirror-symmetrical to the components of the connecting device in the output region.

22. Silencer with a fluid guiding device according to one of the preceding claims, characterized by at least one sound damping device.

23. Exhaust system with a silencer according to claim 22.