EP1843018B1 - Schalldämpfer - Google Patents

Schalldämpfer Download PDF

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Publication number
EP1843018B1
EP1843018B1 EP07104446A EP07104446A EP1843018B1 EP 1843018 B1 EP1843018 B1 EP 1843018B1 EP 07104446 A EP07104446 A EP 07104446A EP 07104446 A EP07104446 A EP 07104446A EP 1843018 B1 EP1843018 B1 EP 1843018B1
Authority
EP
European Patent Office
Prior art keywords
inner bottom
tongue
silencer according
silencer
inner pipe
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
EP07104446A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP1843018A1 (de
Inventor
Thomas Wolf
Arnulf Spieth
Remus Boriga
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 Exhaust Technology 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 EP1843018A1 publication Critical patent/EP1843018A1/de
Application granted granted Critical
Publication of EP1843018B1 publication Critical patent/EP1843018B1/de
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
    • F01N1/00—Silencing apparatus characterised by method of silencing
    • F01N1/08—Silencing apparatus characterised by method of silencing by reducing exhaust energy by throttling or whirling
    • F01N1/083—Silencing 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
    • 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
    • F01N13/1805—Fixing exhaust manifolds, exhaust pipes or pipe sections to each other, to engine or to vehicle body
    • F01N13/1811—Fixing exhaust manifolds, exhaust pipes or pipe sections to each other, to engine or to vehicle body with means permitting relative movement, e.g. compensation of thermal expansion or vibration
    • 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
    • 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
    • F01N1/00—Silencing apparatus characterised by method of silencing
    • F01N1/24—Silencing apparatus characterised by method of silencing by using sound-absorbing materials
    • 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
    • F01N2260/00—Exhaust treating devices having provisions not otherwise provided for
    • F01N2260/10—Exhaust treating devices having provisions not otherwise provided for for avoiding stress caused by expansions or contractions due to temperature variations
    • 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
    • F01N2450/00—Methods or apparatus for fitting, inserting or repairing different elements
    • F01N2450/20—Methods or apparatus for fitting, inserting or repairing different elements by mechanical joints, e.g. by deforming housing, tube, baffle plate or parts thereof

Definitions

  • the present invention relates to a silencer for a gas and airborne sounding line, in particular for an exhaust system of an internal combustion engine, preferably in a motor vehicle.
  • a silencer of the type mentioned in this line In order to reduce a noise emission in a gas-carrying line, for example, an exhaust pipe of a motor vehicle whose gas flow transports airborne sound, it is known to arrange a silencer of the type mentioned in this line.
  • the muffler is preferably flowed through by the gas transported in the line.
  • the entrained airborne sound enters the muffler with the gas and is attenuated therein, for example by means of reflection, resonances and sound-absorbing materials.
  • the attenuation of airborne sound is in other gas-carrying lines, such as in a fresh air system of an internal combustion engine, of great interest, so that the present invention should not be limited in principle to be applied to internal combustion engines.
  • a known countermeasure here is, for example, the arrangement of a sliding seat, which allows an axial compensating movement of two nested tubes in the region of the sliding seat. Furthermore, it is customary to stiffen the housing of such a silencer by at least one inner bottom through which, depending on the gas guide in the interior of the silencer, the inner tubes must be passed. The inner floors also serve to fix the pipes in the housing.
  • a muffler is known in which two inner tubes are fastened to one and the same inner bottom and for this purpose on this inner bottom at least one attached to the one inner tube resilient first tongue and at least one attached to the other inner tube, resilient second tongue is formed, which is independent of the at least a first tongue is resiliently movable. Due to this design, the elastic Tongues independently follow the thermally induced changes in length of the inner tubes, without resulting in unacceptably high stresses within the inner bottom.
  • the present invention is concerned with the problem of providing a muffler of the type mentioned an improved embodiment, which is characterized in particular by a simplified connection of a pipe to an inner bottom.
  • the invention is based on the general idea to provide a resilient tongue in the region of a passage opening of an inner floor.
  • the resilient tongue allows a thermal expansion or thermal movement between the inner tube and the inner bottom, wherein the fixed connection of the free end of the resilient tongue at the same time ensures sufficient fixation of the inner tube on the inner bottom.
  • the inner tube is integrally guided through the passage opening, so it has no sliding fit.
  • the tongue is formed by free cutting or free punching on the inner bottom.
  • the at least one tongue can be made particularly simple and inexpensive and forms an integral component due to the integration in the inner bottom.
  • the integral construction has the advantage that no additional installation effort is required to attach, for example, separately produced tongues on the inner bottom.
  • lateral cheeks of the tongue and / or adjacent cheeks of the inner bottom extend in a plane spaced apart from the inner bottom itself.
  • Such a design causes the gap between the inner bottom and the tongue integrated therein to be reduced during temperature expansion, so that operation of the muffler significantly reduces the gap width.
  • the inner bottom separates an expansion chamber from an absorption chamber and free-flowing absorption material is arranged in the absorption chamber.
  • a slot end between the tongue and the inner bottom is scored kerb carti. This can be done for example by a rounding of the slot end, whereby the risk of tearing the slot end can be reduced.
  • Other suitable geometries are conceivable in addition to a rounding of the slot end, which avoid the tearing of the slot end in the inner bottom inside or at least reduce.
  • an inner bottom 1 is shown, which is usually arranged as a stiffener in a muffler, not shown.
  • the inner bottom 1 can be arranged for example in an exhaust system of an internal combustion engine, preferably in a motor vehicle and be connected along its peripheral edge 2 with a direction indicated only by a broken line housing 14.
  • the inner bottom 1 has three through holes 3, 3 'and 3 ", through which gas and airborne sounding cables are passed when mounted muffler (see. Fig. 3 ).
  • at least a first circumferential section 4 of the opening 3 or 3 " is a radial clearance to an inner tube 5 (see. Fig. 3 ) having.
  • the inner bottom 1 in the region of the inner tube 5 at least one spring-elastic tongue 6, which at its free end 8 forms a second peripheral portion 7 of the opening 3, 3 "and is fixedly connected to the inner tube 5.
  • the inner bottom 1 in the region of the through-opening 3 has only one resilient tongue 6, while in the region of the through-opening 3 "it has two resilient tongues 6a" and 6b ".
  • the said resilient tongues 6 and 6a “and 6b" may be formed, for example, by free cutting or free punching on the inner bottom 1 and thereby be made simple and inexpensive. In addition, they form in this embodiment an integral part of the inner bottom 1, which makes a subsequent installation, for example a separately formed tongue, unnecessary. At its fixed end, that is in the region of the connection to the inner bottom 1, the resilient tongue 6 extends substantially parallel to the inner bottom 1, so that a resilient action of the tongue 6 is possible mainly in the normal direction to the inner bottom 1.
  • the tongues 6, 6a "and 6b” shown have a second plane 9 arranged at an angle (cf. Fig. 2 ), via which the resilient tongues 6, 6a “, 6b” with the respective inner tubes 5 are firmly connected.
  • a connection of the free end 8 of the tongue 6 and the second plane 9 arranged thereon with the inner tube 5 can be effected, for example, by means of a welding or a gluing or a soldering.
  • the second Level 9 is angled with respect to a first level in which the inner bottom 1 extends.
  • the inner bottom 1 may be formed, for example, as a separating bottom between two chambers of a muffler, wherein it is conceivable that one of these chambers is formed as an absorption chamber and the other as an expansion chamber.
  • Slits 10 are arranged, which allow a resilient movement of the free end 8 of the tongue 6 and at the same time in a designed as a partition between an absorption chamber and an expansion chamber inner bottom 1 are dimensioned such that a blow-out of absorbent material from the absorption chamber is prevented or at least reduced.
  • a lateral cheek 11 of the tongue 6 and the slot 10 adjacent portion of the inner bottom 1 extend in a spaced-apart from the inner bottom 1 level.
  • Such a plane of the cheek 11 spaced from the plane of the inner bottom 1 is, for example, in FIG Fig. 4 shown.
  • a lateral cheek 11 'of the tongue 6 extend in a plane spaced from the inner bottom 1 arranged level.
  • a slot end 12 between the tongue 6 and the inner bottom. 1 notched is a slot end 12 between the tongue 6 and the inner bottom. 1 notched.
  • a notch-free embodiment can be effected for example with a rounding of the slot end 12.
  • other at least notch-resistant embodiments of the slot end 12 are conceivable.
  • the through-openings 3, 3 'and 3 "do not have to be circular, but can have an inner diameter matched to the respective inner tube 5.
  • one or more resilient tongues 6 can be provided per opening 3.
  • Control of the absorbable by the elastically designed tongue 6 temperature expansion influenced by a bending angle of the tongue 6 is selected according to the associated inner tube 5. This is illustrated for example with reference to Fig. 3 in which the tongue 6a "has a significantly greater bending angle than the tongue 6 and thereby is able to absorb not only temperature expansions in the direction 13 but also thermal expansions in the direction 13 '.
  • the to be performed inner tube 5 is in one piece and requires
  • the invention is not limited to mufflers or inner floors 1 and inner tubes 5 of mufflers, but includes all such executed bushings of pipes or pipes through floors or walls.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Exhaust Silencers (AREA)
EP07104446A 2006-04-04 2007-03-20 Schalldämpfer Active EP1843018B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102006016095A DE102006016095A1 (de) 2006-04-04 2006-04-04 Schalldämpfer

Publications (2)

Publication Number Publication Date
EP1843018A1 EP1843018A1 (de) 2007-10-10
EP1843018B1 true EP1843018B1 (de) 2012-10-17

Family

ID=38229209

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07104446A Active EP1843018B1 (de) 2006-04-04 2007-03-20 Schalldämpfer

Country Status (5)

Country Link
US (1) US7617909B2 (ja)
EP (1) EP1843018B1 (ja)
JP (1) JP5122851B2 (ja)
CN (1) CN101050721B (ja)
DE (1) DE102006016095A1 (ja)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102010007322B4 (de) * 2010-02-08 2013-11-28 Tenneco Gmbh Abgasschalldämpfer
CN102312696A (zh) * 2010-06-29 2012-01-11 上海天纳克排气***有限公司 可消除热变形影响的车用消音器结构
CA2897293C (en) * 2013-01-11 2017-05-02 Futaba Industrial Co., Ltd. Method for installing inlet pipe and method for supporting inlet pipe
DE102014110098A1 (de) 2014-07-18 2016-01-21 Friedrich Boysen Gmbh & Co. Kg Schalldämpfer
DE102014217058A1 (de) * 2014-08-27 2016-03-03 Eberspächer Exhaust Technology GmbH & Co. KG Schalldämpfer
CN106246295A (zh) * 2016-10-14 2016-12-21 上海天纳克排气***有限公司 ***
DE102021116802A1 (de) * 2021-06-30 2023-01-05 Purem GmbH Schalldämpfer

Family Cites Families (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1995542A (en) * 1933-11-22 1935-03-26 Haviland Arnold Universal muffler coupling
US2656005A (en) * 1949-04-21 1953-10-20 Hayes Ind Retroverted passage type muffler with resonator chambers
JPS5556166Y2 (ja) * 1975-02-01 1980-12-26
US4023645A (en) * 1975-02-27 1977-05-17 Donaldson Company, Inc. Method and apparatus for reducing aerodynamic whistle
US4233726A (en) * 1978-12-21 1980-11-18 Arvin Industries, Inc. Method of joining a tube to a plate
US4291905A (en) * 1978-12-22 1981-09-29 The Boeing Company Duct seal
DE2927758C2 (de) * 1979-07-10 1983-04-28 Audi Nsu Auto Union Ag, 7107 Neckarsulm Abgasschalldämpfer für Brennkraftmaschinen
JPS5943451Y2 (ja) * 1980-02-04 1984-12-24 川崎重工業株式会社 ***式マフラ−
JPS59183018A (ja) * 1983-04-01 1984-10-18 Toyota Motor Corp 消音器
DE3514475A1 (de) * 1985-04-22 1986-10-23 Klöckner-Humboldt-Deutz AG, 5000 Köln Schalldaempfer fuer die abgase einer brennkraftmaschine
US4846302A (en) * 1986-08-08 1989-07-11 Tenneco Inc. Acoustic muffler
US5477015A (en) * 1991-05-03 1995-12-19 Maremont Corporation Vehicular muffler with improved mechanical lock joints
DE4202079C2 (de) * 1992-01-25 1998-04-02 Audi Ag Abgasanlage für Brennkraftmaschinen
DE9400796U1 (de) * 1994-01-20 1994-04-07 Heinrich Gillet Gmbh & Co Kg, 67480 Edenkoben Schalldämpfer
EP0762031B1 (de) * 1995-08-29 1999-11-03 Zurecon Ag Haltevorrichtung für Rohre
JP2003314240A (ja) * 2002-02-20 2003-11-06 Sango Co Ltd 内燃機関の消音器
CN1475689A (zh) * 2002-08-12 2004-02-18 艾姆哈特有限公司 用于管路等的紧固件
DE10311679A1 (de) * 2003-03-11 2004-09-23 Brose Fahrzeugteile Gmbh & Co. Kg, Coburg Gelenkverbindung
DE10338382B4 (de) * 2003-08-21 2008-07-31 Adam Opel Ag Krümmer für eine Brennkraftmaschine und Verfahren zu dessen Herstellung
US7568314B2 (en) * 2004-08-05 2009-08-04 Pacc Systems I.P., Llc Flashing kit for wall penetrations
DE102004054441B4 (de) * 2004-11-10 2006-08-03 J. Eberspächer GmbH & Co. KG Schalldämpfer
DE102005036676A1 (de) * 2005-08-04 2007-02-15 Faurecia Abgastechnik Gmbh Schalldämpfer für die Abgasanlage eines Kraftfahrzeugs
DE102006024576A1 (de) * 2006-05-23 2007-11-29 J. Eberspächer GmbH & Co. KG Blechförmiges Bauteil
US7495171B2 (en) * 2006-11-16 2009-02-24 Data:) Comm Electronics, Inc. Wall plate with flexible screen for passage of communication cable

Also Published As

Publication number Publication date
US7617909B2 (en) 2009-11-17
US20070227812A1 (en) 2007-10-04
JP2007278285A (ja) 2007-10-25
CN101050721A (zh) 2007-10-10
CN101050721B (zh) 2010-12-01
EP1843018A1 (de) 2007-10-10
DE102006016095A1 (de) 2007-10-11
JP5122851B2 (ja) 2013-01-16

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