EP1627997B1 - Silencieux d'échappement et méthode de fabrication - Google Patents

Silencieux d'échappement et méthode de fabrication Download PDF

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Publication number
EP1627997B1
EP1627997B1 EP20050106118 EP05106118A EP1627997B1 EP 1627997 B1 EP1627997 B1 EP 1627997B1 EP 20050106118 EP20050106118 EP 20050106118 EP 05106118 A EP05106118 A EP 05106118A EP 1627997 B1 EP1627997 B1 EP 1627997B1
Authority
EP
European Patent Office
Prior art keywords
jacket
insert
opening
muffler
passage opening
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.)
Ceased
Application number
EP20050106118
Other languages
German (de)
English (en)
Other versions
EP1627997A1 (fr
Inventor
Jörg-Uwe Müller
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.)
Eberspaecher Climate Control Systems GmbH and Co KG
Original Assignee
J Eberspaecher 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 J Eberspaecher GmbH and Co KG filed Critical J Eberspaecher GmbH and Co KG
Publication of EP1627997A1 publication Critical patent/EP1627997A1/fr
Application granted granted Critical
Publication of EP1627997B1 publication Critical patent/EP1627997B1/fr
Ceased legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01NGAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N13/00Exhaust 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
    • F01N13/18Construction facilitating manufacture, assembly, or disassembly
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01NGAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N1/00Silencing apparatus characterised by method of silencing
    • F01N1/08Silencing apparatus characterised by method of silencing by reducing exhaust energy by throttling or whirling
    • F01N1/083Silencing apparatus characterised by method of silencing by reducing exhaust energy by throttling or whirling using transversal baffles defining a tortuous path for the gases or successively throttling gas flow
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01NGAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N2490/00Structure, disposition or shape of gas-chambers
    • F01N2490/02Two or more expansion chambers in series connected by means of tubes

Definitions

  • the present invention relates to a method for producing a silencer for an exhaust system and a silencer produced by the method.
  • the present invention is concerned with the problem of providing an improved method for producing a muffler for an exhaust system, by which in particular a simplification of the production and an increase in the quality can be realized.
  • the insert is inserted in the at least in the region of the passage opening according to the outer contour of the insert pre-bent jacket and aligned so that an opening of the inner channel with the passage opening in the jacket comes to cover.
  • the jacket is finished bent along the outer contour of the insert and closed along its jacket seam.
  • the first exhaust pipe can be connected to the inner channel of the insert by arranging and fixing it on or in the through hole, thereby achieving an inflow or outflow of exhaust gases into or out of the insert of the muffler.
  • the insert when the at least one passage opening is introduced into the jacket, the insert faces or faces away from the insert Collar edge formed on the through hole such that it forms a guide for the first exhaust pipe.
  • the collar edge can in this case be produced for example by means of a punching tool and significantly simplify the assembly of the first exhaust pipe by the leading effect.
  • the collar edge forms a guide both for the use and for the first exhaust pipe, whereby an alignment of the insert in the shell when wrapping simplified and thereby the manufacturing process can be improved in itself.
  • the collar edge forms a connection surface for fixing the insert or the first exhaust pipe to the mantle of the muffler. In principle, a welding of the exhaust pipe to the collar edge of the jacket can take place, which facilitates the production of the weld, in particular when the collar edge protrudes outwards.
  • a bottom is used at the front end of the muffler, which abuts against a front end edge of the shell.
  • a second passage opening can be provided, which coincides with the inner channel of the insert or a further channel when the floor is arranged on the silencer. It is conceivable in this case that the second passage opening similar to the first in the shell has a collar edge, which forms a guide for the second exhaust pipe.
  • the second exhaust pipe is arranged or fixed after arranging the bottom of the muffler in or on the second passage opening.
  • a muffler 10 for an unillustrated exhaust system of a motor vehicle in the assembled state at least the following components: An insert 2 with a rounded cross-sectional profile and at least one inner channel 3, a coat 2 enveloping the insert 2 and a first exhaust pipe 5 and a second exhaust pipe 6.
  • the muffler 10 may also have a cross-sectionally substantially elliptical shape or be adapted in terms of its shape to design features of a motor vehicle.
  • the first exhaust pipe 5 occurs on a lateral surface of the muffler 10 through a through hole 7 through the shell 3 and is connected to the channel 3 fluidly connected.
  • the insert 2 may have at least one further partition wall 9, which is either gas-permeable or gas-impermeable depending on the operating principle of the muffler 10.
  • a bottom 8 is also arranged, which, depending on the embodiment, may also have a further passage opening 7 'or an exhaust passage passing through this passage opening 7' and not shown here.
  • the bottom end 8 arranged in each case can be pressed into the edge of the jacket 4 or welded to the edge of the jacket 4.
  • Fig. 2 to 5 is now an inventive method for producing the according to Fig. 1 shown silencer 10 shown in individual process steps.
  • the jacket 4 is a flat, unperforated metal sheet.
  • Fig. 2 shows the jacket 4 after a first process step 1.1, in which already at least one passage opening 7 is introduced into the jacket 4 at the location of the later connection to the first exhaust pipe 5.
  • the passage opening 7 can be introduced into the shell 4, for example by means of a punching and / or drilling tool.
  • the jacket 4 is already pre-bent according to an outer contour of the insert 2, whereby the pre-bending can be effected before, after or simultaneously with the introduction of the passage opening 7.
  • a plurality of through holes 7 may be provided, which are each connected in a later method step with an exhaust pipe.
  • a collar edge 11 facing or facing away from the insert 2 is preferably integrally formed on the passage opening 7 such that it forms a guide for the first exhaust gas line 5.
  • step 1.2 of the insert 2 in the at least in the area of the passage opening 7 corresponding outer contour of the insert 2 pre-bent shell 4 is used and the insert 2 aligned such that an opening of the inner channel 3 with the through hole 7 in the shell 4 comes to cover.
  • this can be used as adjusting aid for the insert 2 in the jacket 4.
  • the jacket 4 lies flat in the region of the passage opening 7 on the outer contour of the insert 2, so that the result is an undetachable position of the insert 2 by the wedge shape of the shell 4.
  • the jacket 4 is bent completely around the insert 2, so that the jacket 4 rests completely against the outer contour of the insert 2. If the jacket 4 is completely bent around the insert 2, then it becomes in the production step 1.4. along its jacket seam 12 (cf. Fig. 5 ) closed.
  • the closing of the jacket seam 12 is preferably carried out by welding, with other types of connection to be enclosed by the invention.
  • the first exhaust pipe 5 is now connected to the channel 3 by arranging and fixing it on or in the through opening 7.
  • the collar edge 11 can serve as a guide or be used as a contact surface, as mentioned above.
  • a bottom 8 is used in each case, which bears against a front end edge of the shell 4, wherein the onset of the bottoms 8 can be integrated into the manufacturing step 1.2 or can be carried out after the process step 1.4.
  • this is pressed into the edge of the shell 4, folded, crimped and / or welded to the same.
  • the arrangement or fixing of the first exhaust pipe 5 at the passage opening 7 and the second exhaust pipe 6 at the further passage opening 7 ' is preferably carried out by a welded joint, which can easily cope with the high temperatures occurring in exhaust systems.
  • the insert 2 can be preassembled and wrapped by the jacket 4 as a prefabricated component. It is conceivable that the preassembled insert 2 already contains the laterally end-side arranged trays 8 or is pre-produced without them.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Exhaust Silencers (AREA)

Claims (10)

  1. Méthode pour la fabrication d'un silencieux d'échappement (10) pour un système d'échappement, pour laquelle le silencieux d'échappement (10) comprend à l'état monté au moins les composants suivants :
    - un élément inséré (2) qui présente au moins un conduit intérieur (3,3') et au moins une paroi de séparation (9) avec un profil de section arrondi,
    - une enveloppe (4) enveloppant l'élément inséré (2),
    - un premier et un deuxième conduit d'échappement (5, 6),
    avec les phases de procédure suivante :
    1.1 aménagement d'au moins une ouverture de passage (7) dans l'enveloppe (4) à l'emplacement du raccordement ultérieur avec le premier conduit d'échappement (5),
    1.2 insertion de l'élément inséré (2) dans l'enveloppe (4) prépliée au moins dans la zone de l'ouverture de passage (7) correspond au contour extérieur de l'élément inséré (2) et orientation de l'élément inséré (2) de sorte que le conduit (3) intérieur vient en couverture dans l'enveloppe (4) avec l'ouverture de passage (7),
    1.3 pliage définitif de l'enveloppe (4) autour de l'élément inséré (2),
    1.4 fermeture de l'enveloppe (4) le long de son joint d'enveloppe (12),
    1.5 raccordement du premier conduit d'échappement (5) avec le conduit (3) par mise en place et fixation de celui-ci sur ou dans l'ouverture de passage (7).
  2. Méthode selon la revendication 1,
    caractérisée en ce que
    le joint de l'enveloppe (12) est soudé.
  3. Méthode selon la revendication 1 ou 2,
    caractérisée en ce que
    lors de l'aménagement d'au moins une ouverture de passage (7) dans l'enveloppe (4), une collerette (11) tournée vers ou détournée de l'élément inséré(2) est formée sur l'ouverture de passage (7) de sorte qu'un guidage est formé pour le premier conduit d'échappement (5).
  4. Méthode selon l'une des revendications 1 à 3,
    caractérisée en ce qu'
    à l'extrémité avant du silencieux d'échappement (10) est inséré à chaque fois un fond (8) qui s'appuie sur une bordure d'extrémité avant de l'enveloppe (4).
  5. Méthode selon la revendication 4,
    caractérisée en ce que
    le fond (8) est doué avec la bordure de l'enveloppe (4).
  6. Méthode selon la revendication 4 ou 5,
    caractérisée en ce que
    l'insertion des fonds (8) est intégrée dans la phase de procédure 1.2.
  7. Méthode selon la revendication 4 ou 5,
    caractérisée en ce que
    l'insertion des fonds (8) a lieu après la phase de procédure 1.4.
  8. Méthode selon la revendication 7,
    caractérisée en ce que
    le fond (8) est enfoncé dans la bordure de l'enveloppe (4).
  9. Méthode selon la revendication 4 à 8,
    caractérisée en ce que
    - les fonds (8) sont orientés de telle sorte qu'une embouchure du conduit intérieur (3) ou d'un autre conduit (3') vient en couverture dans le fond(8)avec une deuxième ouverture de passage (7'),
    - le raccordement du deuxième conduit d'échappement (6) avec un es canaux (3, 3') a lieu par mise en place ou fixation de ceux-ci sur ou dans la deuxième ouverture de passage (7').
  10. Méthode selon la revendication 1 à 9,
    caractérisée en ce que
    l'élément inséré (2) est du type prémontable.
EP20050106118 2004-08-16 2005-07-06 Silencieux d'échappement et méthode de fabrication Ceased EP1627997B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE200410039776 DE102004039776A1 (de) 2004-08-16 2004-08-16 Schalldämpfer sowie zugehöriges Herstellungsverfahren

Publications (2)

Publication Number Publication Date
EP1627997A1 EP1627997A1 (fr) 2006-02-22
EP1627997B1 true EP1627997B1 (fr) 2008-04-16

Family

ID=35285388

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20050106118 Ceased EP1627997B1 (fr) 2004-08-16 2005-07-06 Silencieux d'échappement et méthode de fabrication

Country Status (2)

Country Link
EP (1) EP1627997B1 (fr)
DE (2) DE102004039776A1 (fr)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102008056350B4 (de) * 2008-11-07 2016-01-07 Eberspächer Exhaust Technology GmbH & Co. KG Schalldämpfer und zugehöriges Herstellungsverfahren
DE102009018957A1 (de) * 2009-04-25 2010-10-28 J. Eberspächer GmbH & Co. KG Schalldämpfer für eine Abgasanlage
DE102010014573A1 (de) * 2010-04-10 2011-10-13 Bayerische Motoren Werke Aktiengesellschaft Verfahren zur Herstellung eines Fahrzeugschalldämpfers und Fahrzeugschalldämpfer
EP2944784B1 (fr) * 2013-01-11 2017-11-01 Futaba Industrial Co. Ltd. Procédé de montage de tube d'entrée et procédé de support de tube d'entrée
JP6056781B2 (ja) * 2013-04-10 2017-01-11 トヨタ自動車株式会社 マフラー製造方法及びマフラー
CN104153849B (zh) * 2014-03-18 2016-09-07 成都陵川常友汽车部件制造有限公司 一种尾气噪音处理机构
CN104827271B (zh) * 2015-05-21 2017-01-11 吴中区横泾嘉运模具厂 简易式气动过滤管组装装置的消音柱推入机构
EP3431732B1 (fr) * 2017-07-21 2020-04-22 Bosal Emission Control Systems NV Procédé de formation d'un collier dans un boîtier de silencieux
CN107503924A (zh) * 2017-08-15 2017-12-22 深圳市合精密泵业科技有限公司 一种压电气泵
CN107520593B (zh) * 2017-10-17 2023-10-24 成都毓恬冠佳汽车零部件有限公司 推装执行组件和软轴推送装置
CN110560974B (zh) * 2019-09-12 2020-06-09 浙江金麦特自动化系统有限公司 一种汽车消音器自动焊接系统

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2761525A (en) * 1950-07-26 1956-09-04 Walker Mfg Company Of Wisconsi Muffler
US3827531A (en) * 1973-08-17 1974-08-06 Nelson Muffler Corp Exhaust muffler
DE2711191C2 (de) * 1977-03-15 1982-09-02 Fa. J. Eberspächer, 7300 Esslingen Abgasschalldämpfer
KR19980026598A (ko) * 1996-10-10 1998-07-15 박병재 차량용 머풀러
NL1008920C2 (nl) * 1998-04-17 1999-10-19 Scambia Ind Dev Ag Werkwijze voor het vervaardigen van een geluiddemper.
US6241044B1 (en) * 1999-02-05 2001-06-05 Komatsu Ltd. Exhaust silencer and communicating pipe thereof
DE10048118A1 (de) * 2000-09-28 2002-04-11 Eberspaecher J Gmbh & Co Verfahren zur Herstellung eines Absorptions-Schalldämpfers für Kraftfahrzeuge sowie Absorptions-Schalldämpfer
JP3934396B2 (ja) * 2001-10-31 2007-06-20 フタバ産業株式会社 車両用消音器の製造方法

Also Published As

Publication number Publication date
EP1627997A1 (fr) 2006-02-22
DE502005003710D1 (de) 2008-05-29
DE102004039776A1 (de) 2006-03-09

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