Exhaust systems for vehicles and methods for assembling them

Abstract

A method for assembling an exhaust system (100) for a vehicle, particularly a passenger car, comprising the steps of: a) providing an exhaust pipe (11) for a catalytic converter (10); b) providing a connector (20) having a channel for guiding exhaust gas flowing from the exhaust pipe (11) when the exhaust system (100) is in use; and c) providing a connector element (30) having a channel for guiding exhaust gas flowing from the connector (20) when the exhaust system (100) is in use. d) Cover the connector (20) at least partially over the discharge pipe (11) or insert the connector at least partially into the discharge pipe, e) adjust the longitudinal axis (L2) of the connector (20) to a predetermined tilt angle (+α, -α) between the longitudinal axis (L1) of the discharge pipe (11), f) weld the discharge pipe (11) and the connector (20) with the tilt angle (+α, -α) adjusted, and g) connect the connector element (30) to the connector (20).

Description

Technical Field

[0001] This invention relates to an exhaust system for a vehicle and a method for assembling it. More particularly, this invention relates to an exhaust system for an internal combustion engine in a vehicle, such as a passenger car. Background Technology

[0002] Conventional exhaust systems for internal combustion engines in vehicles have a catalytic converter with an exhaust pipe that is connected to the vehicle's exhaust system via a connector element or directly, so that exhaust gases flowing from the catalytic converter's exhaust pipe are directed from the vehicle into the environment.

[0003] Here, the location and orientation of the catalytic converter's exhaust pipe can depend on the specific configuration of the vehicle, especially its engine space, such as a conventional vehicle with only one internal combustion engine or a hybrid vehicle with both an internal combustion engine and an electric motor to drive the vehicle. In such cases, different components are required depending on the vehicle configuration to expel the exhaust gases from the catalytic converter into the environment, and different tools are needed to assemble these components if necessary, thereby increasing the vehicle's manufacturing cost. Summary of the Invention

[0004] The objective of embodiments of the present invention is to improve exhaust systems for vehicles and methods for assembling them.

[0005] This task is solved by a method having the features of claim 1 or an exhaust system having the features of claim 9. Advantageous embodiments of the invention are the subject of the dependent claims.

[0006] According to one aspect of the present invention, a method for assembling an exhaust system for a vehicle (in one embodiment, for a passenger car) comprises the following steps:

[0007] a) Provide the catalytic converter's exhaust pipe

[0008] b) Provide a connector with a channel for guiding exhaust gas flowing from the exhaust pipe during designated use of the exhaust system.

[0009] c) Provide a connector element with a channel for guiding exhaust gas flowing out of the connector during intended use of the exhaust system.

[0010] d) At least partially cover the discharge pipe with the connector or at least partially insert the connector into the discharge pipe.

[0011] e) Adjust the pre-defined tilt angle between the longitudinal axis of the connector and the longitudinal axis of the discharge pipe.

[0012] f) Weld the discharge pipe and connector while adjusting the tilt angle, and

[0013] g) Connect the connector element to the connector.

[0014] Therefore, in one embodiment, for different positions and / or orientations of the catalyst exhaust pipe, based on adjusting the tilt angle between the longitudinal axis of the connector and the longitudinal axis of the exhaust pipe and the feasibility of welding the exhaust pipe and the connector, when the tilt angle is adjusted, the same connector can be used to connect the catalyst exhaust pipe and the joint element, thereby reducing vehicle manufacturing costs. Here, the tilt angle is an angle such that the longitudinal axis of the connector and therefore the longitudinal axis of the connector must be rotated by the angle, so that the longitudinal axis of the connector and the longitudinal axis of the exhaust pipe coincide or are at least parallel to each other, or the longitudinal axis of the exhaust pipe and therefore the longitudinal axis of the exhaust pipe must be rotated by the angle, so that the longitudinal axis of the connector and the longitudinal axis of the exhaust pipe coincide or are at least parallel to each other. In one embodiment, the predetermined tilt angle between the longitudinal axis of the connector and the longitudinal axis of the exhaust pipe is not 0°, in one embodiment it is greater than 5°, in one embodiment it is greater than 10°, in one embodiment it is greater than 20°, and in one embodiment it is greater than 30°.

[0015] Furthermore, in one embodiment, this allows for the establishment of an airtight connection between the discharge pipe and the connector by welding the discharge pipe and the connector together.

[0016] In one embodiment, a discharge tube with a predetermined external dimension is provided in step a), and a connector with a channel (having a predetermined internal dimension) is provided in step b), wherein the predetermined external dimension of the discharge tube and the predetermined internal dimension of the channel of the connector are selected such that, with the connector at least partially fitted onto the discharge tube, the connector is movable along the longitudinal axis of the discharge tube and / or at least tiltable at a predetermined angle; or, in step a), a discharge tube with a channel (having a predetermined internal dimension) is provided, and a connector with a predetermined external dimension is provided in step b), wherein the predetermined external dimension of the connector and the predetermined internal dimension of the channel of the discharge tube are selected such that, with the connector at least partially inserted into the discharge tube, the connector is movable along the longitudinal axis of the discharge tube and / or at least tiltable at a predetermined angle.

[0017] Therefore, in one embodiment, the connector can be welded to the discharge pipe at different locations along the longitudinal axis of the catalyst discharge pipe, or the catalyst discharge pipe can be welded to the connector at different locations along the longitudinal axis of the catalyst discharge pipe.

[0018] In one embodiment, the discharge pipe provided in step a) and the connector provided in step b) are configured such that in step d)

[0019] When the pre-defined section cover of the connector is fitted onto the discharge pipe, or

[0020] When inserting the pre-defined section of the connector into the discharge pipe,

[0021] The connector can be tilted relative to the discharge pipe at a predetermined tilt angle corresponding to the longitudinal axis of the connector and the longitudinal axis of the discharge pipe.

[0022] Thus, in one embodiment, the discharge pipe and the connector can be welded in the following states: in which a predetermined section of the connector is fitted onto the discharge pipe, or in which a predetermined section of the connector is inserted into the discharge pipe.

[0023] In one embodiment, in step g), the connector element and the connector are connected by means of a retaining ring, wherein the retaining ring surrounds a radially protruding section of the connector and a radially protruding section of the connector element.

[0024] Thus, in one implementation, a connection that can be easily detached can be established between the connector element and the connector.

[0025] In one implementation scheme,

[0026] In step b), a connector having a first section is provided; in step d), this first section is at least partially fitted over the discharge pipe, wherein the first section of the connector is at least partially narrowed in the direction toward the end of the connector, and in one embodiment, tapered, the connector being fitted over the discharge pipe in step d), or

[0027] In step a), a discharge pipe having the following sections is provided: In step d), a connector is at least partially inserted into said sections, wherein said sections of the discharge pipe are at least segmentally narrowed in the direction toward the end of the discharge pipe, and in one embodiment tapered, the connector is at least partially inserted into said discharge pipe in step d).

[0028] Therefore, in one embodiment, in some cases, the first section of the connector is constructed as a cylinder, or the section of the discharge pipe is constructed as a cylinder, and in these cases, a larger tilt angle between the longitudinal axis of the connector and the longitudinal axis of the discharge pipe can be predetermined and adjusted.

[0029] In one embodiment, step b) provides a connector having a second segment connected to a first segment of the connector and at least segmentally narrowed, or tapered, in a direction toward the first segment of the connector; step c) provides a connector element having a first segment and a second segment connected to the first segment, the second segment having an external dimension smaller than the end of the first segment of the connector element (which is connected to the second segment of the connector element), wherein the first segment of the connector element is at least partially narrowed, or tapered, in a direction away from the end (which is connected to the second segment of the connector element); and step g) the first segment of the connector element is at least segmentally embedded into the second segment of the connector; wherein the method further comprises the following steps:

[0030] h) Connect the connector element and the connector by means of a retaining ring, in particular, wherein the retaining ring surrounds the end of the first section of the connector element and the end of the second section of the connector (the end of which is opposite to the first section of the connector).

[0031] Thus, in one embodiment, a simple and airtight connection can be established between the connector and the joint element.

[0032] In one embodiment, the tilt angle is adjusted in step e) using a gauge (Lehre). Here, the gauge can have, for example, means for holding the discharge pipe and the connector, the means being configured to hold or fix the connector in a predetermined position relative to the orientation and location of the discharge pipe of the catalyst, wherein the predetermined position corresponds to a predetermined tilt angle.

[0033] Thus, in one implementation, a pre-given tilt angle can be adjusted in a simple manner.

[0034] In one embodiment, the drain pipe provided in step a) and / or the connector provided in step b) and / or the fitting element provided in step c) are made of metal or at least one metal. In one embodiment, the fitting element can be configured as a flexible, hose-like element, which can be, for example, made of plastic.

[0035] Thus, in one embodiment, the connector has a metal or is made of at least one metal, and in this embodiment, the connector is used in a situation where the ambient temperature in the engine space or the temperature of the exhaust gas flowing out of the exhaust pipe is predominantly in the range of about 600°C to about 1000°C.

[0036] According to another aspect of the invention, an exhaust system for a vehicle (in one embodiment for a passenger car) has:

[0037] a) Catalyst outlet pipe,

[0038] b) A connector having a channel for guiding exhaust gas flowing from the exhaust pipe during the intended use of the exhaust system.

[0039] c) A connecting element having a channel for guiding exhaust gas flowing out of the connecting element during the intended use of the exhaust system, wherein...

[0040] d) The connector is at least partially fitted onto the discharge pipe or at least partially inserted into the discharge pipe.

[0041] e) Adjust the pre-defined tilt angle between the longitudinal axis of the connector and the longitudinal axis of the discharge pipe.

[0042] f) Weld the discharge pipe and connectors after adjusting the tilt angle, and

[0043] g) Connect the connector element to the connector.

[0044] Therefore, in one embodiment, for different positions and / or orientations of the catalyst exhaust pipe, based on adjusting the tilt angle between the longitudinal axis of the connector and the longitudinal axis of the exhaust pipe and the feasibility of welding the exhaust pipe and the connector, when the tilt angle is adjusted, the same connector can be used to connect the catalyst exhaust pipe and the joint element, thereby reducing vehicle manufacturing costs. Here, the tilt angle is an angle at which the longitudinal axis of the connector and therefore the longitudinal axis of the connector must rotate, such that the longitudinal axis of the connector and the longitudinal axis of the exhaust pipe coincide or are at least parallel to each other, or the longitudinal axis of the exhaust pipe and therefore the longitudinal axis of the exhaust pipe must rotate, such that the longitudinal axis of the connector and the longitudinal axis of the exhaust pipe coincide or are at least parallel to each other. In one embodiment, the predetermined tilt angle between the longitudinal axis of the connector and the longitudinal axis of the exhaust pipe is not 0°, in one embodiment it is greater than 5°, in one embodiment it is greater than 10°, in one embodiment it is greater than 20°, and in one embodiment it is greater than 30°.

[0045] Furthermore, in one embodiment, an airtight connection between the discharge pipe and the connector can be achieved by welding the connection between the discharge pipe and the connector.

[0046] In one embodiment, the connecting element and the connector are connected by means of a retaining ring. In another embodiment, the retaining ring surrounds a radially projecting section of the connector and a radially projecting section of the connector element.

[0047] Thus, in one embodiment, a connection that can be easily detached can be provided between the connector element and the connector.

[0048] In one embodiment, the connector has a first section that at least partially covers the discharge pipe, wherein the first section of the connector narrows at least segmentally in the direction toward the end of the connector, or tapered in one embodiment, the connector covering the discharge pipe, or

[0049] The discharge pipe has a section in which a connector is at least partially inserted, wherein the section of the discharge pipe is at least segmentally narrowed in the direction toward the end of the discharge pipe, and in one embodiment tapered, and the connector is at least partially inserted into the discharge pipe.

[0050] Therefore, in one embodiment, in some cases, the first section of the connector is constructed as a cylinder or the section of the discharge pipe is constructed as a cylinder, and in these cases, a larger tilt angle between the longitudinal axis of the connector and the longitudinal axis of the discharge pipe can be predetermined and adjusted.

[0051] In one embodiment, the connector has a second segment connected to a first segment of the connector and at least segmentally narrowed in a direction toward the first segment of the connector, or tapered in another embodiment. The joint element has a first segment and a second segment connected to the first segment, the second segment having an external dimension smaller than the end of the first segment of the joint element (which is connected to the second segment of the joint element). The first segment of the joint element is at least segmentally narrowed, or tapered in another embodiment, in a direction toward the end connected to the second segment of the joint element. The first segment of the joint element is at least segmentally embedded in the second segment of the connector, and the joint element and the connector are connected by means of a retaining ring, wherein, in particular, the retaining ring surrounds the end of the first segment of the joint element and the end of the second segment of the connector (which faces away from the first segment of the connector).

[0052] Thus, in one embodiment, a simple and airtight connection can be established between the connector and the joint element.

[0053] In one embodiment, the drain pipe and / or connector and / or fitting element is made of metal or at least one metal. In one embodiment, the fitting element can be configured as a flexible, hose-like element, which may be, for example, made of plastic.

[0054] Thus, in one embodiment, the connector has metal or is made of at least one metal, and is used in situations where the ambient temperature in the engine space or the temperature of the exhaust gas flowing from the exhaust pipe is predominantly in the range of about 600°C to about 1000°C.

[0055] In one embodiment, the exhaust system is assembled according to the method described above for assembling a vehicle's exhaust system.

[0056] According to another aspect of the invention, the vehicle (in one embodiment, a sedan) has the exhaust system described above for a vehicle. Attached Figure Description

[0057] Further advantageous extensions of the invention are derived from the dependent claims and the subsequent description of preferred embodiments. For this purpose, they are shown, in part, schematically:

[0058] Figure 1 A flowchart of a method for assembling an exhaust system for a vehicle according to one embodiment of the present invention.

[0059] Figure 2 According to one embodiment of the present invention, a portion of an exhaust system for a vehicle in an incompletely assembled state.

[0060] Figure 3 A portion of an exhaust system for a vehicle in an incompletely assembled state, according to another embodiment of the present invention;

[0061] Figure 4 The part used in the vehicle's exhaust system. Detailed Implementation

[0062] Figure 1 A flowchart is shown to visually illustrate a method for assembling an exhaust system 100 for a vehicle (in one embodiment, a sedan) according to an embodiment of the present invention.

[0063] Further reference Figure 2 , 3 and 4 (described Figure 2 Figures 3 and 4 show portions of an exhaust system 100 for a vehicle according to an embodiment of the present invention, with reference to... Figure 1 Explain a single step of a method for assembling an exhaust system 100 for a vehicle (in one embodiment, a sedan).

[0064] In step S10, an exhaust pipe 11 for the catalyst 10 is provided, which is connected to the catalyst or configured to be connected to the catalyst 10 at a later time. The catalyst 10 can, for example, be connected to an internal combustion engine (not shown) of the vehicle via a corresponding connecting element, and can be configured to purify the exhaust gases produced by the internal combustion engine.

[0065] In step S20, a connector 20 with a channel is provided for guiding exhaust gas flowing out of the exhaust pipe 11 when the exhaust system 100 is used in a predetermined manner. The exhaust gas is generated by an internal combustion engine or an internal combustion motor (not shown).

[0066] In step S30, a connector element 30 with a channel is provided for guiding exhaust gas flowing out of the connector 20 when the exhaust system 100 is in use.

[0067] In one embodiment, the discharge pipe 11 and / or connector 20 and / or fitting element 30 are made of metal or composed of at least one metal. In one embodiment, fitting element 30 can be configured as a flexible, hose-like element, which can be, for example, made of plastic.

[0068] Thus, in one embodiment, the connector 20 is made of metal or is composed of at least one metal, and in this embodiment, the connector 20 is capable of being used in situations where the ambient temperature in the engine space or the temperature of the exhaust gas flowing out of the exhaust pipe 11 is predominantly in the range of about 600°C to about 1000°C.

[0069] In step S40, as in Figure 2 As visually illustrated in 3 and 4, the connector 20 at least partially covers the outlet pipe 11 of the catalyst 10. In an embodiment not shown, alternatively, in step S40, the connector can also be at least partially inserted into the outlet pipe of the catalyst.

[0070] In step S50, the predetermined tilt angle between the longitudinal axis L2 of the connector 20 and the longitudinal axis L1 of the discharge pipe 11 of the catalyst 10 is adjusted. Figure 2 In the implementation scheme, for example, the tilt angle is +α, in Figure 3 and 4 In some implementation schemes, the tilt angle is, for example, -α.

[0071] Here, the tilt angles +α and -α are angles such that the longitudinal axis L2 of the connector 20 must be rotated by the angle, thereby coinciding with or being at least parallel to the longitudinal axis L1 of the discharge pipe 11 of the catalyst 10, or the longitudinal axis of the discharge pipe must be rotated by the angle, thereby coinciding with or being at least parallel to the longitudinal axis of the connector 20. In one embodiment, the predetermined tilt angle between the longitudinal axis L2 of the connector 20 and the longitudinal axis L1 of the discharge pipe 11 is not 0°, but is greater than 5° in one embodiment, greater than 10° in another embodiment, greater than 20° in another embodiment, and greater than 30° in another embodiment.

[0072] In one embodiment, the tilt angles +α and -α are adjusted using a gauge. Here, the gauge may have, for example, means for holding the discharge pipe 11 and the connector 20, which is configured to hold or fix the orientation and position of the connector 20 relative to the discharge pipe 11 of the catalyst 10 in a predetermined position, wherein the predetermined position corresponds to a predetermined tilt angle +α and -α.

[0073] exist Figure 2 In the embodiments shown in 3 and 4, a discharge pipe 11 with a predetermined external dimension is provided in step S10, and a connector 20 with a channel (which has a predetermined internal dimension) is provided in step S20. In this case, the predetermined external dimension of the discharge pipe 11 and the predetermined internal dimension of the channel of the connector 20 can be selected such that, with the connector 20 at least partially fitted onto the discharge pipe 11, the connector 20 can move along the longitudinal axis L1 of the discharge pipe 11 and / or can tilt at least by a predetermined tilt angle +α, -α.

[0074] exist Figure 2 In embodiments not shown in 3 and 4, alternatively, in step S10, a discharge pipe having a channel (with a predetermined internal dimension) can be provided, and in step S20, a connector having a predetermined external dimension can be provided. In this case, the predetermined external dimension of the connector and the predetermined internal dimension of the channel of the discharge pipe can be selected such that, with the connector at least partially inserted into the discharge pipe, the connector can move along the longitudinal axis L1 of the discharge pipe and / or can tilt at least by a predetermined tilt angle +α, -α.

[0075] Furthermore, the discharge pipe 11 provided in step S10 and the connector 20 provided in step S20 can be configured such that, in step S40, in Figure 2 In the embodiments shown in 3 and 4, when the connector 20 is fitted onto the discharge pipe 11 at a predetermined section, or in Figure 2 In embodiments not shown in 3 and 4, when a predetermined section of the connector is inserted into the discharge pipe, the connector 20 is tilted relative to the discharge pipe 11 at a predetermined tilt angle +α, -α between the longitudinal axis L2 of the connector 20 and the longitudinal axis L1 of the discharge pipe 11.

[0076] In step S60, the discharge pipe 11 and the connector 20 are welded together with the tilt angles adjusted to +α and -α, as shown in... Figure 2 As illustrated in sections 3 and 4, arrows and reference numeral S visually indicate the corresponding welded connections or welded positions. Here, in Figure 2In the embodiments shown in 3 and 4, the end 24 of the first section 21 of the connector 20 is welded to the discharge pipe 11. In an embodiment not shown, the connector 20 is at least partially inserted into the discharge pipe 11, and in this embodiment, the exposed end of the discharge pipe 11 is welded to the connector 20. In one embodiment, by welding the discharge pipe 11 to the connector 20, an airtight connection can be established between the discharge pipe 11 and the connector 20.

[0077] In step S70, the connector element 30 is connected to the connector 20. Here, in one embodiment, the connector element 30 can be connected to the connector 20 by means of a retaining ring 40, as in... Figure 4 As illustrated in the diagram, in the exhaust system 100 for a vehicle, the connector element 30 is connected to the connector 20. In one embodiment, the retaining ring 40 is able to surround the radially protruding section of the connector 20 and the radially protruding section of the connector element 30, thereby connecting the connector element 30 and the connector 20 in the exhaust system 100 for a vehicle by means of the retaining ring 40, wherein the retaining ring 40 particularly surrounds the radially protruding section of the connector 20 and the radially protruding section of the connector element 30.

[0078] exist Figure 2 In the embodiments shown in 3 and 4, a connector 20 having a first segment 21 can be provided in step S20, and in step S40, the first segment at least partially covers the discharge pipe 11. Here, the first segment 21 of the connector 20 can be at least segmentally narrowed in the direction toward the end 24 of the connector 20, and in one embodiment tapered, in step S40, the connector covers the discharge pipe 11.

[0079] Furthermore, in step S20, a connector 20 having a second segment 22 can be provided, which is connected to the first segment 21 of the connector 20 and is at least segmentally narrowed, especially tapered, in the direction toward the first segment 21 of the connector 20. Furthermore, in step S30, a connector element 30 having a first segment 31 and a second segment 32 connected to the first segment 31 can be provided, the second segment having an external dimension smaller than the end 33 of the first segment 31 of the connector element 30, which is connected to the second segment 32 of the connector element 30, wherein the first segment 31 of the connector element 30 is at least segmentally narrowed, especially tapered, in the direction away from the end 33 (which is connected to the second segment 32 of the connector element 30), and in step S70, the first segment 31 of the connector element 30 is at least segmentally embedded into the second segment 22 of the connector 20.

[0080] In this case, the method may further include step S80, in which the connector element 30 is connected to the connector 20 by means of a retaining ring 40, wherein, in one embodiment, the retaining ring 40 surrounds the end 33 of the first section 31 of the connector element 30 and the end 23 of the second section 22 of the connector 20 opposite to the first section 21 of the connector.

[0081] exist Figure 2 In embodiments not shown in 3 and 4, a discharge pipe having the following section can be provided in step S10: in step S40, a connector is at least partially inserted into said section. Here, this section of the discharge pipe can be at least segmentally narrowed, especially tapered, in the direction toward the end of the discharge pipe, and in step S40, the connector is at least partially inserted into said discharge pipe.

[0082] List of reference numerals

[0083] 10 Catalysts

[0084] 11 Discharge pipe

[0085] 20 connectors

[0086] 21 First section of connector

[0087] 22 Second section of connector

[0088] 23 The end of the second section of the connector

[0089] The end of the first section of the 24 connector

[0090] 30 connector components

[0091] 31. First section of connector element

[0092] The second section of the 32 connector element

[0093] The end of the first section of the 33 connector element

[0094] 40 card circle

[0095] 100 exhaust system

[0096] Longitudinal axis of L1 discharge pipe

[0097] The longitudinal axis of the L2 connector

[0098] S-welding connection

[0099] α tilt angle

Claims

1. A method for assembling an exhaust system (100) for a vehicle, comprising the following steps: a) Provides the discharge pipe (11) for the catalyst (10). b) Provide a connector (20) having a channel for guiding exhaust gas flowing from the discharge pipe (11) when the exhaust system (100) is used in a predetermined manner. c) Provide a connector element (30) having a channel for guiding exhaust gas flowing out of the connector (20) when the exhaust system (100) is used in a predetermined manner. d) At least partially cover the discharge pipe (11) with the connector (20) or at least partially insert the connector into the discharge pipe. e) Adjust the pre-given tilt angle (+α, -α) between the longitudinal axis (L2) of the connector (20) and the longitudinal axis (L1) of the discharge pipe (11). f) Weld the discharge pipe (11) and the connector (20) while adjusting the tilt angle (+α, -α). g) Connect the connector element (30) to the connector (20), In step b), a connector (20) having a first section (21) is provided, and in step d), the first section is at least partially fitted over the discharge pipe (11), wherein, The first section (21) of the connector (20) is at least sectionally narrowed in the direction toward the end (24) of the connector (20) that is welded to the discharge pipe (11), in step d), the connector is fitted onto the discharge pipe (11), or In step a), a discharge pipe having a section is provided; in step d), the connector is at least partially inserted into the section, wherein the section of the discharge pipe is at least segmentally narrowed in the direction toward the end of the discharge pipe; in step d), the connector is at least partially inserted into the discharge pipe. In step b), a connector (20) is provided having a second segment (22) connected to the first segment (21) of the connector (20) and at least segmentally narrowed in the direction toward the first segment (21) of the connector (20). In step c), a connector element (30) is provided having a first segment (31) and a second segment (32) connected to the first segment (31), the second segment of the connector element (30) having a larger diameter than the end of the first segment (31) of the connector element (30). 33) Small external dimensions, the end (33) is connected to the second section (32) of the connector element (30), wherein the first section (31) of the connector element (30) is at least segmentally narrowed in a direction away from the end (33) connected to the second section (32) of the connector element (30), in step g), the first section (31) of the connector element (30) is at least segmentally embedded into the second section (22) of the connector (20), and the method further comprises the following steps: h) The connector element (30) is connected to the connector (20) by means of a retaining ring (40), wherein the retaining ring (40) surrounds the end (33) of the first section (31) of the connector element (30) and the end (23) of the second section (22) of the connector (20) away from the first section (21) of the connector (20).

2. The method according to claim 1, wherein In step a), a discharge pipe (11) with a predetermined external dimension is provided; in step b), a connector (20) with a channel having a predetermined internal dimension is provided; and the predetermined external dimension of the discharge pipe (11) and the predetermined internal dimension of the channel of the connector (20) are selected such that, with the connector (20) at least partially fitted onto the discharge pipe (11), the connector (20) can move along the longitudinal axis (L1) of the discharge pipe (11) and / or can tilt at least at the predetermined tilt angle (+α, -α), or In step a), a discharge tube with a channel having a predetermined internal dimension is provided; in step b), a connector having a predetermined external dimension is provided; and the predetermined external dimension of the connector and the predetermined internal dimension of the channel of the discharge tube are selected such that, with the connector at least partially inserted into the discharge tube, the connector can move along the longitudinal axis of the discharge tube and / or tilt at least at the predetermined tilt angle (+α, -α).

3. The method according to claim 1 or 2, wherein, The discharge pipe (11) provided in step a) and the connector (20) provided in step b) are configured such that in step d) When the pre-defined section of the connector (20) is fitted onto the discharge pipe (11), or When the pre-defined section of the connector is inserted into the discharge pipe, The connector (20) can be tilted relative to the discharge pipe (11) at a predetermined tilt angle (+α, -α) between the longitudinal axis (L2) of the connector (20) and the longitudinal axis (L1) of the discharge pipe (11).

4. The method according to any one of claims 1 to 3, wherein, The retaining ring (40) surrounds the radially protruding section of the connector (20) and the radially protruding section of the joint element (30).

5. The method according to any one of claims 1-3, wherein, In step e), the tilt angle (+α, -α) is adjusted by using a gauge.

6. The method according to any one of claims 1-3, wherein, The discharge pipe (11) provided in step a) and / or the connector (20) provided in step b) and / or the fitting element (30) provided in step c) are made of metal or at least one metal.

7. An exhaust system (100) for a vehicle, comprising: a) The discharge pipe (11) of the catalyst (10). b) A connector (20) with a channel for guiding exhaust gas flowing from the exhaust pipe (11) when the exhaust system (100) is used in a predetermined manner. c) A connector element (30) with a channel for guiding exhaust gas flowing from the connector (20) during intended use of the exhaust system (100), wherein d) The connector (20) is at least partially fitted onto the discharge pipe (11) or the connector is at least partially inserted into the discharge pipe. e) Adjust the pre-given tilt angle (+α, -α) between the longitudinal axis (L2) of the connector (20) and the longitudinal axis (L1) of the discharge pipe (11), and f) Under the adjusted tilt angle (+α, -α), weld the discharge pipe (11) and the connector (20), and g) Connect the connector element (30) to the connector (20), The connector (20) has a first section (21) that at least partially covers the discharge pipe (11), wherein, The first section (21) of the connector (20) is at least sectionally narrowed in the direction toward the end (24) of the connector (20) that is welded to the discharge pipe (11), the connector being fitted onto the discharge pipe (11), or The discharge pipe has a section into which a connector is at least partially inserted, wherein the section of the discharge pipe narrows at least sectionally in the direction toward an end of the discharge pipe, and the connector is at least partially inserted into the discharge pipe. The connector (20) has a second section (22) connected to the first section (21) of the connector (20) and at least segmentally narrowed in the direction toward the first section (21) of the connector (20). The joint element (30) has a first section (31) and a second section (32) connected to the first section (31). The second section of the joint element (30) has an external dimension smaller than the end of the first section (31) of the joint element (30), the end of which is connected to the second section (32) of the joint element (30). The first section (31) of the connector element (30) is at least segmentally narrowed in a direction away from the end (33) connected to the second section (32) of the connector element (30), and the first section (31) of the connector element (30) is at least segmentally embedded in the second section (22) of the connector (20). The connector element (30) is connected to the connector (20) by means of a retaining ring (40), wherein the retaining ring (40) surrounds the end (33) of the first section (31) of the connector element (30) and the end (23) of the second section (22) of the connector (20) away from the first section (21) of the connector (20).

8. The exhaust system (100) according to claim 7, wherein, The retaining ring (40) surrounds the radially protruding section of the connector (20) and the radially protruding section of the joint element (30).

9. The exhaust system (100) according to claim 7 or 8, wherein, The discharge pipe (11) and / or the connector (20) and / or the joint element (30) are made of metal or at least one metal.

10. The exhaust system (100) according to claim 7 or 8, wherein the exhaust system is assembled according to any one of claims 1 to 6.

11. A vehicle having an exhaust system (100) according to any one of claims 7 to 10.

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