EP3981960A1 - Boîtier pour agencement de gaz d'échappement - Google Patents

Boîtier pour agencement de gaz d'échappement Download PDF

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Publication number
EP3981960A1
EP3981960A1 EP21194024.2A EP21194024A EP3981960A1 EP 3981960 A1 EP3981960 A1 EP 3981960A1 EP 21194024 A EP21194024 A EP 21194024A EP 3981960 A1 EP3981960 A1 EP 3981960A1
Authority
EP
European Patent Office
Prior art keywords
section
housing
sections
plug
flange
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP21194024.2A
Other languages
German (de)
English (en)
Other versions
EP3981960B1 (fr
Inventor
Andreas Roller
Daniel BÖHM
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Friedrich Boysen GmbH and Co KG
Original Assignee
Friedrich Boysen GmbH and Co KG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Friedrich Boysen GmbH and Co KG filed Critical Friedrich Boysen GmbH and Co KG
Publication of EP3981960A1 publication Critical patent/EP3981960A1/fr
Application granted granted Critical
Publication of EP3981960B1 publication Critical patent/EP3981960B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N13/00—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00
    • F01N13/18—Construction facilitating manufacture, assembly, or disassembly
    • F01N13/1838—Construction facilitating manufacture, assembly, or disassembly characterised by the type of connection between parts of exhaust or silencing apparatus, e.g. between housing and tubes, between tubes and baffles
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N13/00—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00
    • F01N13/18—Construction facilitating manufacture, assembly, or disassembly
    • F01N13/1838—Construction facilitating manufacture, assembly, or disassembly characterised by the type of connection between parts of exhaust or silencing apparatus, e.g. between housing and tubes, between tubes and baffles
    • F01N13/1844—Mechanical joints
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N13/00—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00
    • F01N13/18—Construction facilitating manufacture, assembly, or disassembly
    • F01N13/1838—Construction facilitating manufacture, assembly, or disassembly characterised by the type of connection between parts of exhaust or silencing apparatus, e.g. between housing and tubes, between tubes and baffles
    • F01N13/1844—Mechanical joints
    • F01N13/185—Mechanical joints the connection being realised by deforming housing, tube, baffle, plate, or parts thereof
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N13/00—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00
    • F01N13/18—Construction facilitating manufacture, assembly, or disassembly
    • F01N13/1872—Construction facilitating manufacture, assembly, or disassembly the assembly using stamp-formed parts or otherwise deformed sheet-metal
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N13/00—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00
    • F01N13/18—Construction facilitating manufacture, assembly, or disassembly
    • F01N13/1872—Construction facilitating manufacture, assembly, or disassembly the assembly using stamp-formed parts or otherwise deformed sheet-metal
    • F01N13/1877—Construction facilitating manufacture, assembly, or disassembly the assembly using stamp-formed parts or otherwise deformed sheet-metal the channels or tubes thereof being made integrally with the housing
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N13/00—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00
    • F01N13/18—Construction facilitating manufacture, assembly, or disassembly
    • F01N13/1888—Construction facilitating manufacture, assembly, or disassembly the housing of the assembly consisting of two or more parts, e.g. two half-shells
    • F01N13/1894—Construction facilitating manufacture, assembly, or disassembly the housing of the assembly consisting of two or more parts, e.g. two half-shells the parts being assembled in longitudinal direction

Definitions

  • the present invention relates to a housing for a component of an exhaust system, in particular for an exhaust system of an internal combustion engine.
  • the housing comprises a first half-shell with a first connection section, a second half-shell with a second connection section, and at least one opening which is defined by a shape of a first section of the first half-shell and a second section of the second half-shell, in particular the opening for connection of the housing is provided with a tube.
  • the first and second half-shells are connected to one another at least in sections by means of the first and second connecting sections.
  • Such housings for components of an exhaust system are known in principle from the prior art and are used, for example, in exhaust systems for motor vehicles, for example as housings for mufflers, in particular rear mufflers, and as housings for exhaust gas cleaning devices.
  • the first and second connecting sections are usually designed as laterally projecting flange sections which lie flat on top of one another and are welded to one another at the front by means of a front seam, ie along a longitudinal outer contour of the housing formed by the flange sections.
  • a front seam ie along a longitudinal outer contour of the housing formed by the flange sections.
  • a housing with the features of claim 1 and in particular in that the first connecting section and the second connecting section of the housing according to the invention for a component of an exhaust system - seen in its longitudinal extent - each have a plug-in section in the area of the opening and a plug-in section attached to it - directly or indirectly - include subsequent laterally projecting flange section, wherein the plug-in sections of the connecting sections are inserted into one another and the flange sections rest on one another.
  • the flange sections preferably lie flat on one another at least in sections, in particular completely, along their longitudinal extent. However, partial or complete punctiform or linear contact is also conceivable.
  • the invention is based on the general idea that a laterally projecting flange section for connecting the two half-shells is used only in a region of the connecting sections that is at a distance from the opening of the housing.
  • the connecting sections according to the present invention are designed as plug-in sections which—in contrast to the flange sections—do not have to have any significant lateral overhang. Rather, the plug-in sections fit approximately into the course of a housing contour, as a result of which there is no significant beading or bending of the housing in the area of the connecting sections, as is necessary for a flange section. The entry of tensions in the material of the first half-shell and/or the second half-shell can thus be effectively reduced.
  • the connecting sections of the half-shells which are arranged in their edge regions, are connected to one another, for example by welding or gluing.
  • the first connecting section and the second connecting section each extend along an edge section of the respective half-shell and surround the half-shell in the circumferential direction at least in sections.
  • the first and the second connecting section first each comprise a plug-in section. If one moves further away from the opening of the housing--in the direction of longitudinal extension of the connecting section--a laterally projecting flange section follows, with further sections being able to be arranged between the plug-in section and the flange section.
  • each of the half-shells actually forms one half of the housing. Rather, the half-shells can each form parts of a housing conversion of different sizes. However, the at least one opening provided in the housing is designed in such a way that both half-shells contribute to delimiting the opening at least in sections.
  • a further component eg a pipe and/or a component in a shell construction or the like
  • the component is usually inserted into the opening and then connected to the housing, in particular in a materially bonded manner, for example by means of a component and the opening surrounding weld in the circumferential direction.
  • the plug-in section provided according to the invention in the area of the opening - instead of a flange section - has the advantage that the component can also be securely fastened immediately in the area of the connecting section with a simple circumferential weld seam, without the need for subsequent welding of a laterally projecting connecting section.
  • the plug-in section of the second connection section has a widening towards the outside of the housing, into which the plug-in section of the first connection section can be inserted on a side facing the inside of the housing.
  • the first connecting section can be clamped into the widening.
  • the widening of the second plug-in section can advantageously facilitate the insertion of the first plug-in section into the second plug-in section when assembling the first and second half-shells.
  • the degree of expansion can be varied.
  • the widening can be chosen so small that the plug-in section of the first connection section is clamped without play after being inserted into the widening, so that the subsequent connection, for example by means of welding, is simplified.
  • the expansion can be selected such that the plug-in section of the first connection section can be inserted into the plug-in section of the second connection section without any significant application of force.
  • the widening of the second connecting section is relatively small and is, for example, in the range of one or less material thicknesses of the connecting section.
  • the plug-in section of the first connection section ie the connection section which is inserted into the second connection section on the inside of the housing, can alternatively or in addition to the widening of the second connection section (slightly) be tapered towards the inside of the housing. This in turn can facilitate the insertion process.
  • a widening is not necessarily to be understood here as meaning that the second connecting section is beaded towards the outside of the housing. Rather, the widening can also be described in such a way that the course of the widened second connecting section continues to follow at least approximately the basic contour of the housing, the widened plug-in section of the second connecting section being displaced or offset by the widening towards the outside of the housing (in parallel).
  • An insertion direction, along which the plug-in sections of the first and second connection sections are plugged together, can be oriented at least approximately perpendicular to a first plane in which the flange section of the first connection section is arranged.
  • the insertion direction can be oriented at least approximately perpendicularly to a second plane in which the flange section of the second connection section is arranged.
  • the plug-in sections of the first and second connecting section can be plugged into one another during a mating movement, while at the same time the flange sections of the first and second connecting section are brought into contact with one another.
  • the plug-in sections also stabilize the plugged-together housing during assembly.
  • the first and/or the second plug-in section can have a projection projecting towards the outside of the housing, in particular with its extent in the direction of the outside of the housing not being greater than a material thickness of the connecting section in this direction. If the plug-in section to be plugged in on the inside of the housing has such an outwardly projecting attachment, a stabilizing clamping effect can advantageously be achieved after plugging into the second plug-in section arranged on the outside of the housing. If the plug-in section arranged on the outside of the housing has such an outwardly projecting attachment, this attachment can advantageously serve as an insertion aid for the plug-in section to be received on the inside of the housing and thus facilitate assembly.
  • Such an attachment can be produced in a particularly simple manner in the forming processes usually used to produce the first and second half-shells, for example in deep-drawing.
  • the attachment can be left in place after the forming process when the first and/or second half-shell is separated or cut to size.
  • the housing has a base body and a projection, in particular a socket-like projection, with the opening being arranged at an end of the projection facing away from the base body.
  • a pipe to be fastened to the housing can be better guided and more securely attached to the housing. In this way, stresses in the fastening area between the pipe and the opening can be reduced or better distributed.
  • the socket-like projection is to be regarded in particular as being arranged in the area of the opening.
  • the transition from the base body to the projection can include a bend in the housing contour, in particular a bend in the first and/or the second half-shell.
  • the bend in the housing contour can be designed in such a way that it can also be regarded as being arranged in the region of the opening.
  • a laterally projecting transition section can be arranged between the plug-in section and the flange section of the first and second connecting section, with the transition sections of the first and second connecting section not completely overlapping.
  • the width of the transition section can correspondingly increase with the distance from the opening, in particular up to a maximum width of the flange section.
  • a width of the transition section and of the flange section is to be understood in each case as the extent of the corresponding section perpendicular to the longitudinal extent of the connecting section within the plane of the flange or transition section.
  • the transition section does not have any significant lateral projection compared to the flange section, the transition area is intended to transition the flange section and the plug section of each half-shell into one another while avoiding jumps in the width of the connecting section.
  • at least one of the transition sections of the first and of the second connection section preferably both transition sections, can have a continuous, preferably sloping and/or monotonous course. This significantly simplifies the production of a material connection between the half-shells after they have been plugged together.
  • the plug-in section transitions into the transition section in the area of the bend, in particular in the area of an end of the bend remote from the opening. Viewed from the opening in the longitudinal direction of the connecting section, the laterally projecting areas of the transition section and the flange section adjoin the plug-in section only in the area of the bend or thereafter.
  • the width of the second connection section is greater than the width of the first connection section, in particular such that a laterally cantilevered surface of the second connection section is at least partially exposed and not covered by a laterally projecting surface of the first connection section is, or vice versa.
  • the first and the second connecting section thus run in the transition section in such a way that one of the transition sections has a surface that protrudes over the other transition section, so that an overlap joint is created.
  • the lap joint can be used to place a connecting seam.
  • the flange sections and/or the transition sections of the first and of the second connecting section are preferably arranged essentially parallel to one another.
  • the laterally projecting surfaces of the first and second flange and/or transition sections are arranged essentially parallel to one another, so that they rest stably on one another.
  • One of the two surfaces or both surfaces can also be arranged (in sections) obliquely to a parting plane of the half-shells, so that (in sections) a linear contact of the two flange sections arises.
  • the flange sections of the first and of the second connection section are preferably flush with one another on an outside of the housing, in particular with the flange sections having at least essentially the same width and/or overlapping completely.
  • the flange sections can be easily connected to one another along their outside (eg by means of a weld seam in the form of a front seam), while the completely overlapping, laterally projecting surfaces stabilize the connection.
  • a connection by means of a weld seam in the form of a fillet weld can also be provided.
  • first connecting section and the second connecting section are connected to one another in the plug-in section, in the transition section and/or in the flange section by means of an integral connection, in particular the connection being continuous.
  • the connecting sections can be connected to one another by means of welding, soldering or other types of material-to-material connection, optionally also glued to one another.
  • a continuous connection can usually be produced with little effort and also ensures high reliability, tightness and stability.
  • connection is a weld seam, which is formed as a fillet weld in the area of the plug-in section and/or in the transition section and/or as a face weld in the area of the flange section.
  • the front seam in the area of the flange section is typically made on the outer flank of the two flange sections.
  • the fillet weld in the transition section can be made in the area of the lap joint of the laterally projecting surfaces of the first and second transition sections.
  • the fillet weld can be made in a joint area of the first and second plug-in section.
  • the invention further relates to a method for producing a housing according to at least one of the preceding claims, comprising the steps of (i) providing a first half-shell with a first connecting section and a second half-shell with a second connecting section, (ii) assembling the first and the second half-shell, wherein the flange sections of the first and second connecting section are brought into contact and the plug-in sections of the first and second connecting section are inserted into one another along a plug-in direction, (iii) materially bonded connection of the first and second half-shell, in particular by means of a weld seam, in particular which is made at a first angle in the area of the flange sections and which is made at a second angle in the area of the plug-in sections, which deviates from the first angle by 90 degrees or less, and which, if necessary, in the area of the transition sections at a third angle is carried out, which lies between the first and the second angle.
  • the weld seam can be made continuously over the flange section, the transition section and the plug-in section by successively adjusting the angle in the welding process.
  • the automated production of the housing can be facilitated and an improved connection between the half-shells can be achieved.
  • the connection can also be remote, e.g. if the connection in the area of the plug-in section, the flange section and/or - if available - the transition section is to be made by different machines (e.g. robots).
  • Figures 1 and 2 show an example of a section of a housing for a component of an exhaust system, for example a housing of a muffler for a motor vehicle, as is known from the prior art.
  • the housing comprises a first half-shell 12 and a second half-shell 14 arranged underneath.
  • the shape of the first half-shell 12 and the second half-shell 14 define an opening 16 in the housing 10, which is used to connect the housing 10 to a pipe, for example an exhaust pipe (not shown), is provided.
  • the first half-shell 12 and the second half-shell 14 have a first connecting portion 18 and a second connecting portion 20, respectively, which extend longitudinally along the edge regions of the respective half-shell 12 and 14, respectively.
  • first connection section 18 and the second connection section 20 are each formed along their entire length as laterally projecting flange sections 18c and 20c, which abut one another and are connected to one another, for example by welding.
  • the first half-shell 12 and the second half-shell 14 of the housing according to the invention form a base body 10a and a socket-like projection 10b, which is defined by the shape of the first half-shell 12 and the second half-shell 14.
  • the opening 16 is arranged at an end of the projection 10b facing away from the base body 10a.
  • the base body 10a transitions into the projection 10b by a bend which is realized by the contours of the first half-shell 12 and the second half-shell 14 .
  • the first half-shell 12 and the second half-shell 14 have a first connection section 18 and a second connection section 20.
  • the connection sections 18, 20 each have a laterally projecting flange section 18c or 20c, which extends from the opening 16 - along the longitudinal direction of the connection sections 18, 20 seen - are spaced.
  • the first connection section 18 and the second connection section 20 are each designed as a plug-in section 18a and 20a.
  • the mating portions 18a and 20a are nested and overlapped with each other while following a shape of the case 10 to a certain extent.
  • the flange sections 18c, 20c protrude laterally from the basic shape of the housing 10 and lie flat on one another.
  • the laterally protruding surfaces of the flange sections 18c and 20c are arranged parallel to one another and, in addition, the flange sections 18c and 20c are flush with one another on their outside.
  • the plug-in sections 18a and 20a extend--seen in the longitudinal direction of the connecting sections 10, 20--from the opening 16 to the area of the bend, which converts the base body 10a into the projection 10b of the housing 10. As in 4 is shown, the plug-in sections 18a and 20a can extend into the area of the bend and possibly up to an end of the bend ( 4 , right side) or alternatively extend through the entire bend and beyond the far end of the bend ( 4 , left side).
  • transition sections 18b and 20b are arranged between the plug-in sections 18a and 20a and the flange sections 18c and 20c.
  • the width B 1,2 of the laterally projecting surfaces of the transition sections 18b, 20b increases steadily from the plug-in sections 18a, 20a to the associated flange sections 18c, 20c, until each transition section 18b, 20b has the width B F of the respective flange section 18c, has reached 20c (see also Figure 7A,B ).
  • the transition sections 18b, 20b each have an oblique outer contour.
  • the laterally projecting surfaces of the transition sections 18b and 20b are arranged parallel to one another in the assembled housing 10, so that they rest flat on one another, while their surfaces do not completely overlap. Rather, in the exemplary embodiment shown, the second transition section 20b is slightly wider at every point than the first transition section 18b, so that the laterally projecting surface of the second transition section 20b is partially exposed and not covered by the laterally projecting surface of the first transition section 18b (see Fig figure 5 ).
  • FIGS Figures 6 to 8 Detailed cross-sectional views through the first and second connecting portions 18, 20 are shown in FIGS Figures 6 to 8 shown.
  • 6 shows a cross section through the first and the second connection section 18, 20 in the area of the plug-in sections 18a and 20a.
  • the plug-in section 18a of the first connection section 18 is plugged into the plug-in section 20a of the second connection section 20 on the inside of the housing.
  • the second plug-in section 20a has a slight widening 22 towards the outside of the housing.
  • the contour of the plug-in section 20a is shifted towards the outside of the housing in the area of the widening 22 via a region 22a running obliquely to the outside of the housing, but only by about the material thickness of the connecting section 18, so that it can be easily accommodated on the inside of the housing.
  • the shape of the widened area 22 of the plug-in section 20a essentially follows the general housing contour, ie the plug-in section 20a is not beaded or bent over.
  • the first plug-in section 18a inserted into the second plug-in section 20a is in 6 clamped in the widening 22.
  • the first plug-in section 18a has a first projection 24 that protrudes minimally in the direction of the outside of the housing and with which the first plug-in section 18a is clamped on the second plug-in section 20a after plugging them together.
  • the second plug-in section 20a also has a second projection 26 which projects towards the outside of the housing and which extends by less than the material thickness of the plug-in section 20a in the direction of the outside of the housing.
  • the second projection 26 serves as an insertion aid when the first plug-in section 18a is inserted.
  • Figures 7A and 7B show cross-sectional views of the transition sections 18b and 20b along the in figure 5 marked cross-sectional areas. It can be clearly seen that the width B 1,2 of the transition sections 18b and 20b increases with the increasing distance from the opening 16 from FIG. 7A to 7B. It will also be appreciated that the width B 2 of the second transition section 20b is greater than the corresponding width B 1 of the first transition section 18b at any distance from the opening 16, resulting in a lap joint of the transition sections 18b and 20b.
  • FIG. 8 shows a cross section through the first flange portion 18c and the second flange portion 20c.
  • the flange sections 18c and 20c have the same width B F and completely overlap each other, resulting in a so-called flanged joint.
  • the first half-shell 12 and the second half-shell 14 are first assembled so that the flange sections 18c, 20c and the transition sections 18b, 20b are brought into contact with one another and the plug-in sections 18a, 20a are inserted into one another.
  • the insertion direction E along which the plug-in sections 18a, 20a are plugged together, is oriented perpendicularly to the planes in which the laterally projecting flange sections 18c and 20c of the first and second connecting sections 18 and 20 are arranged. In this way, the mating of the male sections 18a, 20a and the bringing into abutment of the flange sections 18c, 20c and the transition sections 18b, 20b take place simultaneously.
  • the first half-shell 12 and the second half-shell 14 of the housing 10 are connected to one another in the exemplary embodiment shown by means of a material connection, here by welding.
  • a weld which in the Figures 6, 7A, 7B and 8 is indicated by oval markings 34, formed over the plug-in sections 18a, 20a, the transition sections 18b, 20b and the flange sections 18c, 20c.
  • the weld seam is formed as a front seam that is placed along the outer contour of the flange sections 18c and 20c.
  • the weld is made parallel to the plane in which the laterally projecting surfaces of the flange portions 18c and 20c are located.
  • a fillet weld is placed in the joint area between the first plug-in section 18a and the second plug-in section 20a, specifically at an angle 30 which deviates from the first angle 28 by at most 90°.
  • a fillet weld is performed at a third angle 32 which lies between the first angle 28 and the second angle 30 .
  • transition sections 18b, 20b are provided.
  • sections 18b, 20b are optional.
  • plug-in sections 18a, 20a can transition into the flange sections 18c, 20c without pronounced transition sections.
  • the flange sections 18c, 20c also do not have to be arranged so that they overlap completely or are flush with their outside. In this case, they are preferably welded to one another by means of a fillet weld.
  • Figures 9A and 9B show that the flange sections 18c, 20c do not necessarily have to be arranged parallel to one another. As is shown by way of example, both can extend at least in sections obliquely to a parting plane T of the half-shells 12, 14 along their longitudinal extension (possibly in sections), so that a linear contact of the sections 18c, 20c results. It is also conceivable that one of the sections 18c, 20c (in sections) is arranged obliquely to the plane T and that the other section 20c or 18c extends essentially parallel to the plane T. Even then there is a linear support. The same applies - if present - for the transition sections 18b, 20b.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Exhaust Silencers (AREA)
EP21194024.2A 2020-10-05 2021-08-31 Boîtier pour agencement de gaz d'échappement Active EP3981960B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102020125954.9A DE102020125954A1 (de) 2020-10-05 2020-10-05 Gehäuse für Abgaseinrichtung

Publications (2)

Publication Number Publication Date
EP3981960A1 true EP3981960A1 (fr) 2022-04-13
EP3981960B1 EP3981960B1 (fr) 2023-10-04

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EP21194024.2A Active EP3981960B1 (fr) 2020-10-05 2021-08-31 Boîtier pour agencement de gaz d'échappement

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EP (1) EP3981960B1 (fr)
DE (1) DE102020125954A1 (fr)
ES (1) ES2969637T3 (fr)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2262627A (en) * 1938-11-15 1941-11-11 Budd Edward G Mfg Co Manifold
DE3536657A1 (de) * 1984-10-25 1986-04-30 Joh. Vaillant Gmbh U. Co, 5630 Remscheid Rohrbogen
JPH0996218A (ja) * 1995-10-03 1997-04-08 Toyota Motor Corp 排気マニホルド
WO2003031091A1 (fr) * 2001-10-06 2003-04-17 Daimlerchrysler Ag Procede de production d'un tuyau de derivation

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