EP1691050B1 - Silencieux - Google Patents

Silencieux Download PDF

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Publication number
EP1691050B1
EP1691050B1 EP05111847A EP05111847A EP1691050B1 EP 1691050 B1 EP1691050 B1 EP 1691050B1 EP 05111847 A EP05111847 A EP 05111847A EP 05111847 A EP05111847 A EP 05111847A EP 1691050 B1 EP1691050 B1 EP 1691050B1
Authority
EP
European Patent Office
Prior art keywords
shells
muffler
housing
opening
shell
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.)
Active
Application number
EP05111847A
Other languages
German (de)
English (en)
Other versions
EP1691050B2 (fr
EP1691050A1 (fr
Inventor
Friedrich Schlenker
Peter Gorke
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=35945316&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP1691050(B1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by J Eberspaecher GmbH and Co KG filed Critical J Eberspaecher GmbH and Co KG
Publication of EP1691050A1 publication Critical patent/EP1691050A1/fr
Application granted granted Critical
Publication of EP1691050B1 publication Critical patent/EP1691050B1/fr
Publication of EP1691050B2 publication Critical patent/EP1691050B2/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
    • F01N13/1872—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
    • 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

Definitions

  • the present invention relates to a silencer for an exhaust system of an internal combustion engine, in particular of a motor vehicle.
  • the present invention also relates to a modular system for producing such a silencer.
  • a common silencer of this type (such as in EP 0 856 647 A1 shown) has a housing which has an upper shell and a lower shell and at least one inlet opening and at least one outlet opening.
  • An inlet tube can be connected to each inlet opening, and an outlet tube can be connected to each outlet opening.
  • the muffler can be installed in an exhaust system.
  • the respective inlet opening and / or the respective outlet opening is located in the region of a parting line along which the two shells are fastened to one another. The respective opening is thus arranged between the two shells and partially covered by the two shells.
  • the upper shell and lower shell must be adapted in a corresponding manner. Since the trays are usually formed sheet metal parts, this adaptation involves considerable tooling costs.
  • the present invention is concerned with the problem of finding a way for a muffler of the type mentioned, which in particular simplifies the formation of variants.
  • the invention is based on the general idea to equip the housing additionally with a bottom which is inserted between the upper shell and lower shell and which contains at least one of the openings of the housing.
  • a bottom which is inserted between the upper shell and lower shell and which contains at least one of the openings of the housing.
  • only the floor needs to be adapted in the silencer according to the invention, while the upper shell and lower shell can remain unchanged.
  • the relatively expensive tools for the production of the shells can thus continue to be used, while only a relatively inexpensive tool for the production of the soil must be adapted.
  • proposed Construction can thus relatively inexpensive different types of silencers realize that are adapted to different exhaust systems.
  • At least one of the other of these openings is formed in one of the shells and spaced from a parting line along which the shells are attached to each other.
  • this embodiment uses the knowledge that the different exhaust systems usually differ from one another only on the inlet side or exhaust side. Accordingly, in the variants, the same opening can be formed in one of the shells.
  • this has the advantage that the dividing line is geometrically particularly simple and the connection of the two shells along the dividing line can be correspondingly easily realized. This also has a simplified, in particular automated, and thus cheaper production of the muffler result.
  • the floor is designed just and equipped with a circumferential and angled outer edge. Along this outer edge of the soil is then attached to the shells.
  • This embodiment has a simple geometry, can therefore be easily manufactured, while at the same time the tool required for this purpose is comparatively inexpensive feasible.
  • the bottom has a greater wall thickness than the shells.
  • a silencer 1 according to the invention comprises a housing 2 for accommodating a conventional silencer structure (not shown).
  • the muffler 1 is suitable for installation in an exhaust system, not shown, of an internal combustion engine, in particular of a motor vehicle.
  • its housing 2 is equipped with at least one inlet opening 3 and with at least one outlet opening 4.
  • At least one inlet pipe of the exhaust system can be connected to the at least one inlet opening 3.
  • at least one outlet pipe of the exhaust system can be connected to the at least one outlet opening 4.
  • the housing 2 has an upper shell 5 and a lower shell 6, which are fastened to one another along a parting line 7, preferably by a welded joint and / or solder joint.
  • the terms "upper shell” and “lower shell” do not necessarily refer to the respective installation situation, but to the illustration reproduced in FIG. 1, in which the upper shell 5 above and the lower shell 6 are arranged below.
  • an outwardly angled collar 8 is formed on each shell 5, 6, over which the shells 5, 6 abut each other along the dividing line 7 and are fastened to one another.
  • the housing 2 is also provided with a bottom 9, which here contains the at least one inlet opening 3.
  • the bottom 9 may contain the at least one outlet opening 4.
  • the bottom 9 is inserted between the upper shell 5 and the lower shell 6 and forms part of the housing 2. That is, the outer skin of the housing 2 is thus formed by the upper shell 5, lower shell 6 and bottom 9.
  • the bottom 9 is preferably flat and thus extends in an unspecified ground plane.
  • the bottom 9 has an outer edge 10, which is angled outwardly and closed circumferentially arranged.
  • the outer edge 10 lies on the collar 8 of the upper shell 5 and the collar 8 of the lower shell 6 and is attached via these collars 8 to the shells 5, 6, suitably by means of soldered connection and / or welded connection.
  • the at least one other opening that is to say here the at least one outlet opening 4 in one of the two shells 5, 6, is formed here in the lower shell 6 and arranged so that it is spaced from the parting line 7. This results in a particularly simple geometry for the dividing line 7. At the same time thereby making a connection between the upper shell 5 and lower shell 6 along the dividing line 7 is simplified.
  • the dividing line 7 extends outside of the bottom 9 preferably in a parting plane 11, which is indicated in Fig. 1 by a dashed line.
  • the bottom 9 is integrated into the housing 2 such that the bottom plane extends substantially perpendicular to the parting plane 11.
  • the ground plane is thus inclined relative to the parting plane 11 approximately at 90 °. Other steep angles of inclination between 75 ° to 105 °, preferably between 80 ° and 100 °, are also conceivable.
  • the shells 5, 6 and the bottom 9 are preferably designed as shaped sheet metal parts.
  • the shells 5, 6 have a smaller wall thickness than the bottom 9.
  • the weight of the housing 2 can be significantly reduced. This is possible this by the associated with the installation of the bottom 9 stiffening of the housing 2, which allows a reduction of the wall thickness in the shells 5, 6, without a desired minimum stiffness or minimum strength for the housing 2 is exceeded.
  • the wall thickness of the bottom 9 is 50% to 100% greater than the wall thickness of the shells 5, 6.
  • an outwardly flared collar 12 is formed to surround the at least one outlet opening 4.
  • inner lying outlet pipe section is used and firmly connected to the collar 12, z. B. by soldering and / or by welding.
  • the at least one inlet opening 3 is bordered by a collar 13, which protrudes outwardly from the bottom 9.
  • an inwardly designated inlet pipe section is inserted into the at least one inlet opening 3 or into its collar 13, which is firmly connected to the collar 13, for example by soldering and / or welding.
  • the silencer 1 according to the invention can preferably be produced as follows:
  • the complete muffler structure is used, wherein at least one inner outlet pipe section is inserted from the inside into the at least one outlet opening 4 and in the collar 12 thereof.
  • the bottom 9 is attached, wherein it is placed on at least one inner inlet pipe section so that the respective inlet pipe section is inserted into the respective inlet opening 3 of the bottom 9 or in the collar 13 thereof.
  • the upper shell 5 is placed.
  • the superposed frets 8 along the dividing line 7 can be interconnected.
  • the collars 8 can also be connected to the outer edge 10.
  • the at least one inner inlet pipe section can be connected to the collar 12 of the at least one outlet opening 4 and the at least one inner inlet pipe section can be connected to the collar 13 of the at least one inlet opening 3.
  • the respective inlet opening 3 at the bottom 9 is arranged so that it or its collar 13 is spaced in each direction from the outer edge 10. This simplifies the formation of the outer edge 10 and the preparation of the connection between the outer edge 10 and the collars 8 of the shells 5 and 6.
  • FIGS. 2 and 3 at least two different trays 9 can be provided for realizing a modular system with the aid of which different variants of the silencer 1 can be produced.
  • the Both bottoms 9 differ from each other by the number and / or by the geometry and / or by the position of the respective bottom 9 associated, at least one opening, here the at least one inlet opening 3.
  • Fig. 2 bottom 9 only an inlet opening 3, which has a comparatively large cross-section.
  • Fig. 3 shows another bottom 9, which has two inlet openings 3, each having a smaller cross section than in the variant shown in Fig. 2.
  • the two inlet openings 3 are arranged somewhat further down than the one inlet opening 3 in the variant according to FIG. 2.
  • FIG. 2 can thus be used in a single-flow exhaust system
  • FIG. 3 is suitable for a dual-flow exhaust system.
  • a dual-flow exhaust system lead two separate exhaust pipes, here inlet pipes to the muffler 1, wherein the separate exhaust gas streams suitably unite in the muffler 1, which is preferably designed here as a rear muffler to a common exhaust stream. Accordingly, only a single outlet opening 4 is then required both in the single-flow exhaust system and in the twin-flow exhaust system.
  • the modular system according to the invention makes it possible now, the muffler 1 either with the bottom 9 shown in FIG. 2 for adaptation to a single-flow exhaust system or with the in Fig. 3 shown to assemble floor 9 for adaptation to a dual-flow exhaust system.
  • the bottom 9 is conceivable.
  • the at least one inlet opening 3 have an elliptical cross section.
  • the trays 9 of the modular system are characterized by the fact that, despite all the differences in the at least one opening (here the at least one inlet opening 3) formed therein, they always have the same outer edge 10 geometrically. This makes it possible to install the different trays 9 alternatively between the shells 5, 6 in the housing 2, without requiring the shells 5, 6 must be adapted. It is clear that the muffler structure to be installed in the housing 2 may be modified differently depending on the floor 9. However, an adaptation in this regard is comparatively inexpensive, at least in comparison to the costs that arise when changing the tools for producing the shells 5, 6.

Landscapes

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

Claims (8)

  1. Silencieux pour un système d'échappement d'un moteur à combustion en particulier d'un véhicule automobile,
    - avec une enveloppe (2) qui présente une coque supérieure (5) et une coque inférieure (6) ainsi qu'une ouverture d'entrée (3) et au moins une ouverture de sortie (4),
    - au moins une de ces ouvertures (3) étant ménagée dans un fond (9) qui est inséré entre la coque supérieure (5) et la coque inférieure (6) et qui fait partie intégrante de l'enveloppe (2).
  2. Silencieux selon la revendication 1,
    caractérisé en ce qu'
    au moins une autre de ces ouvertures (4) est ménagée dans une des coques (6) et est disposée à distance d'une ligne séparatrice (7) le long de laquelle sont fixées les coques (5, 6) entre elles.
  3. Silencieux selon la revendication 1 ou 2,
    caractérisé en ce que
    le fond (9) est plan et présente un bord externe (10) coudé et circulaire le long duquel est fixé le fond (9) sur les coques (5, 6).
  4. Silencieux selon l'une des revendications 1 à 3,
    caractérisé en ce que
    le fond (9) comprend au moins une ouverture d'entrée (3).
  5. Silencieux selon l'une des revendications 1 à 4,
    caractérisé en ce que
    le fond (9) présente une épaisseur de paroi plus importante que les coques (5, 6).
  6. Silencieux selon l'une des revendications 1 à 5,
    caractérisé en ce qu'
    une ligne séparatrice (7) le long de laquelle sont fixées les coques (5, 6) entre elles, se trouve dans un plan de séparation (11).
  7. Silencieux selon la revendication 6,
    caractérisé en ce que
    le fond (9) se trouve dans un plan de fond qui est incliné entre 80° et 100° par rapport au plan de séparation (11).
  8. Système en caisson pour la fabrication d'un silencieux (1) selon l'une des revendications 1 à 7,
    avec au moins deux fonds différents (9) qui sont insérables en alternative entre la coque supérieure (5) et la coque inférieure (6) et qui se différencient l'un de l'autre par le nombre et/ou la géométrie et/ou la position d'au moins une ouverture (3) réalisée dans le fond respectif (9).
EP05111847A 2005-01-17 2005-12-08 Silencieux Active EP1691050B2 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102005002290A DE102005002290A1 (de) 2005-01-17 2005-01-17 Schalldämpfer

Publications (3)

Publication Number Publication Date
EP1691050A1 EP1691050A1 (fr) 2006-08-16
EP1691050B1 true EP1691050B1 (fr) 2007-08-15
EP1691050B2 EP1691050B2 (fr) 2011-10-12

Family

ID=35945316

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05111847A Active EP1691050B2 (fr) 2005-01-17 2005-12-08 Silencieux

Country Status (4)

Country Link
EP (1) EP1691050B2 (fr)
AT (1) ATE370318T1 (fr)
DE (2) DE102005002290A1 (fr)
ES (1) ES2290859T5 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102012204114B4 (de) 2012-03-15 2015-03-26 Eberspächer Exhaust Technology GmbH & Co. KG Schalldämpfer-Einheit

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3945460A (en) * 1974-09-03 1976-03-23 Arvin Industries, Inc. Muffler with rupture control means
CA2072947A1 (fr) * 1991-07-08 1993-01-09 Willem Denis Maria Stuer Methode de fabrication d'un dispositif attenuateur de bruit ou d'un convertisseur catalytique
EP0856647B1 (fr) * 1997-02-04 2003-05-14 Ap Parts Manufacturing Company Silencieux avec plaques internes fabriquées par estampage délimitant des tubes en séparant des chambres
US5739484A (en) * 1997-03-12 1998-04-14 Jones; Mack L. Exhaust muffler
GB9723148D0 (en) † 1997-11-04 1998-01-07 Eurotex Thermal Engineering Li Sound muffling material and method of making thereof
WO1999039087A1 (fr) * 1998-01-30 1999-08-05 Arvin Industries, Inc. Silencieux forme par estampage et procede d'assemblage associe

Also Published As

Publication number Publication date
EP1691050B2 (fr) 2011-10-12
DE102005002290A1 (de) 2006-07-27
EP1691050A1 (fr) 2006-08-16
ATE370318T1 (de) 2007-09-15
ES2290859T3 (es) 2008-02-16
DE502005001245D1 (de) 2007-09-27
ES2290859T5 (es) 2012-01-25

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