EP0926320B1 - Procédé de fabrication d' un silencieux à absorption - Google Patents

Procédé de fabrication d' un silencieux à absorption Download PDF

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Publication number
EP0926320B1
EP0926320B1 EP98117027A EP98117027A EP0926320B1 EP 0926320 B1 EP0926320 B1 EP 0926320B1 EP 98117027 A EP98117027 A EP 98117027A EP 98117027 A EP98117027 A EP 98117027A EP 0926320 B1 EP0926320 B1 EP 0926320B1
Authority
EP
European Patent Office
Prior art keywords
glass wool
silencer
filling
silencer body
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.)
Expired - Lifetime
Application number
EP98117027A
Other languages
German (de)
English (en)
Other versions
EP0926320A2 (fr
EP0926320A3 (fr
Inventor
Roland Ackermann
Bernd Müller
Norbert Klein
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
Priority claimed from DE19811192A external-priority patent/DE19811192A1/de
Application filed by J Eberspaecher GmbH and Co KG filed Critical J Eberspaecher GmbH and Co KG
Publication of EP0926320A2 publication Critical patent/EP0926320A2/fr
Publication of EP0926320A3 publication Critical patent/EP0926320A3/fr
Application granted granted Critical
Publication of EP0926320B1 publication Critical patent/EP0926320B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • F01N13/1888—Construction facilitating manufacture, assembly, or disassembly the housing of the assembly consisting of two or more parts, e.g. two half-shells
    • 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
    • F01N2310/00—Selection of sound absorbing or insulating material
    • F01N2310/02—Mineral wool, e.g. glass wool, rock wool, asbestos or the like
    • 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
    • F01N2450/06—Inserting sound absorbing material into a chamber
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49398—Muffler, manifold or exhaust pipe making

Definitions

  • the invention relates to a method for producing an absorption silencer for motor vehicles with a Schalldämfungsmaterial arranged in the muffler body, and a Hiernach produced absorption muffler in half-shell or winding construction itself, wherein introduced into a cavity of the muffler body sound damping material in the form of glass wool as an expanded endless fiberglass invention becomes.
  • absorption silencers have annular gaps and / or chambers in which the sound damping material, in particular glass wool, is arranged.
  • the sound deadening material is applied around the semifinished product of an inner shell or around an inner tube before the outer shell is finally mounted and secured to the inner shell or inner tube, e.g. connected via a fold or a weld.
  • the arrangement of the incompatible flexible sound damping material at the designated locations or in the chambers provided for this purpose a muffler and the subsequent assembly of the muffler body are relatively laborious and costly.
  • the object of the invention is to provide a simplified method for producing an absorption silencer with the aid of simple means and according to one To create silencers in a simple way.
  • a manufactured according to the inventive absorption silencer is characterized by the features of claim 9.
  • the muffler is advantageously further developed by the features of claims 10 to 13.
  • the glass wool by means of at least one rigid filler pipe or a flexible filler hose via one or more formed in the muffler body filling openings, wherein the filling openings may be provided at different locations depending on the type of construction of the muffler, namely on the outer shell or on the Outer skin, and / or on the inner shell or on the inner tube, namely at the radial (mantle) position and / or at the axial end-side location of the outer shell and / or the inner tube or in the inner shell.
  • the (small) filling openings can be easily closed again after pulling out the filler pipe or filling hose.
  • the glass wool is preferably pressed under pressure through the filler pipe or the filling hose into the muffler body and / or sucked in through a vacuum in the interior of the muffler body.
  • the outer skin or the outer shell of the muffler body is cut to form the filling opening, and the cut-in portion is deformed, so that a filling gap is formed.
  • the deformed incised portion is reformed again and optionally welded to the remainder of the outer skin or outer shell.
  • a gap between an inner tube and an outer skin or outer shell of a muffler body that is partially bulged on the circumference at the end can be pushed back again and, if necessary, welded after introduction of the muffling material.
  • an inner tube partially deformed inwards on the circumference, after the glass wool has been introduced, can be returned to its original, preferably round shape.
  • a hole or a jacket perforation in the inner shell or in the inner tube can be closed again by inserting an intermediate tube into the inner shell or into the inner tube.
  • the hole or holes are pressure equalization holes, which get the pressure equalization when filling the glass wool.
  • the holes may also be used to fill the interior with glass wool.
  • absorption silencer in half-shell or wound construction is thus in the completely prefabricated and completely assembled silencer body subsequently introduced from the outside silencer material provided in the form of glass wool.
  • the outer skin or outer shell has at least one filling opening through which the glass wool is introduced and which is closed after introduction of the glass wool.
  • the filling opening of a subsequently provided with glass wool muffler body may have a welded closure in the form of a welded plug or alternatively a riveted closure.
  • the muffler body provided with glass wool may have a pressed outer shell or an at least partially compressed outer shell, which is optionally still welded.
  • a frontally deformed inner shell or a frontally deformed inner tube of a silencer body provided with glass wool is expediently reshaped, preferably with the aid of a mandrel.
  • the inner shell or the inner tube of the muffler body expediently has a hole or a jacket perforation for a pressure equalization during filling of the glass wool, which is closed after an insertion of the glass wool through an inserted intermediate tube.
  • the hole or jacket perforation may also be used to introduce the glass wool into the interior of the muffler.
  • glass wool in a muffler body after folding and welding from the outside via one or more holes by means of a probe or a filling hose or tube introduced. Then the holes are closed.
  • a manufacturing process saves manufacturing time and assembly time compared to the known methods mentioned above, resulting in competitive advantages.
  • the glass wool as filler results in a good environmental compatibility (better than when using basalt wool).
  • an absorption silencer comprises a shell-type silencer body 1.
  • the muffler has two outer half shells 4 and a closed inner tube. 5
  • the glass wool 2 is subsequently introduced into the completely prefabricated and final muffler body 1 from the outside, by means of a probe or a rigid filling tube 15 or a flexible filling hose with or without end-mounted nozzle.
  • the filling tube 15 is inserted for filling the cavity 13 in a previously formed filling opening 3 of the Schalldämfungs stresses 1 and then packed endless fiberglass material under pressure from a reservoir or of a glass wool coil in the silencer interior, under expansion and confusion of the glass fibers to a so-called Glasmaschinegespinst, such that the entire cavity to be filled 13 is filled to the last angle with virtually the same density.
  • the filling tube 15 is pulled out of the filling opening and the filling opening closed again.
  • the muffler partially shown in Figures 4 to 6 thus has a completely prefabricated muffler body 1 in the form of an inner tube 5, which is surrounded by the two outer half shells 4, inner tube 5 and outer shells 4 by a fold 12 in the outer shells 4 fixed to each other are connected.
  • a Axialstoff Scheme between the inner tube 5 and the outer shells 4 is a glass wool 2
  • the filling opening 3 can be designed differently.
  • the filling opening can also be produced by a U-shaped cut in the outer shell 4, as shown in FIG. After being cut, the cut-in section 6 is deformed or bent to finally form the filling opening 3. After introduction of the glass wool 2, the bent-up section 6 is reshaped and welded.
  • the filling opening 3 by a deformation of the Outer shells 4 may be formed in the region of an axial end of the outer shells 4, so that a gap 7 or a filling channel according to Figure 4 is formed, through which glass wool 2 can be introduced into the silencer interior.
  • the deformation of the two outer shells 4 is again formed back, by compressing the two outer shells in the local area, so that the gap 7 and the filling channel is closed again.
  • the bent portion of the two half-shells is still spot or seam welded to produce a proper tightness and strength of the muffler.
  • the inner shell or the inner tube 5 may alternatively be deformed radially inward in an axial end portion of the outer shells 5 to form the filling opening 3. After filling the glass wool, the deformed inner tube 5 is again bent exactly round to close the filling opening at the axial end of the outer shells 4 again.
  • the inner shell or the inner tube 5 can also have a hole 3 or 8 on the shell side or a perforation, which can be used to fill the cavity 13 with glass wool 2.
  • the hole or the jacket perforation is closed again after filling by an intermediate tube 9 coaxially inserted into the inner tube 5 is tightly fitting and axially fixed.
  • the last-mentioned hole 8 can also be used as a pressure compensation bore when filling from another filling opening.
  • filling opening 3 on the outer shell 4 shell side according to the figures 1, 2 or 3 or frontally according to Figure 4 may be formed. Furthermore, the filling opening 3 on the inner shell or in the inner tube. 5 shell side according to Figure 6 or frontally be located in accordance with Figure 5.
  • a shell muffler which has such cavities 13, which can be filled simultaneously or successively by two or a filler pipe 15 at the front and shell side.
  • a single cavity 13 can be filled simultaneously or successively at a plurality of filling points via filling openings provided there. So it is ensured in any case that every angle of the cavity is filled without hesitation.
  • a winding muffler which also has a plurality (here frontal) filling openings, through which a filling or packing of cavities 13 is possible via filling pipes 15.

Landscapes

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

Claims (13)

  1. Procédé de fabrication d'un silencieux à absorption pour véhicules automobiles comprenant un matériaux insonorisant disposé dans un espace creux (13) du corps de silencieux (1) sous la forme de laine de verre (2) qui est introduite dans l'espace creux (13) sous la forme d'une mèche en fibre de verre infinie expansée, caractérisé en ce que le corps de silencieux (1) est entièrement préfabriqué et assemblé et que la laine de verre (2) est introduite ultérieurement depuis l'extérieur dans le corps de silencieux (1) préfabriqué assemblé.
  2. Procédé selon la revendication 1, dans lequel la laine de verre (2) est introduite au moyen d'au moins un tube de remplissage rigide (15) ou d'un tuyau de remplissage souple par le biais d'une ou plusieurs ouvertures de remplissage (3) formées dans le corps de silencieux (1), le tube de remplissage (15) ou le tuyau de remplissage étant de nouveau retiré de l'ouverture de remplissage (3) après avoir introduit la laine de verre (2).
  3. Procédé selon la revendication 2, dans lequel la laine de verre (2) est enfoncée sous pression dans l'espace creux (13) du corps de silencieux (1) à travers le tube de remplissage (15) ou le tuyau de remplissage et/ou aspirée par une dépression à l'intérieur du corps de silencieux (1).
  4. Procédé selon la revendication 2 ou 3, dans lequel les ouvertures de remplissage (3) sont formées avant ou après l'assemblage du corps de silencieux (1) et fermées après l'introduction de la laine de verre (2).
  5. Procédé selon la revendication 4, dans lequel une croûte externe ou une coque externe (4) du corps de silencieux (1) est entaillée pour former l'ouverture de remplissage (3), la section entaillée (6) est déformée puis, après l'introduction de la laine de verre (2), de nouveau ramenée dans sa forme originelle et éventuellement soudée (figure 3).
  6. Procédé selon la revendication 4, dans lequel une fente de remplissage (7) du côté frontal entre un tube intérieur (5) et une croûte externe ou une coque externe (4) bombée du côté de l'extrémité du corps de silencieux (1) est de nouveau fermée par enfoncement et éventuellement soudée après l'introduction de la laine de verre (2) (figure 4).
  7. Procédé selon l'une des revendications 1 à 6, dans lequel un tube intérieur (5) du côté de l'extrémité en parti déformé sur le pourtour est de nouveau ramené dans sa forme originelle après l'introduction de la laine de verre (2) (figure 5).
  8. Procédé selon l'une des revendications 1 à 7, dans lequel après l'introduction de la laine de verre (2) dans l'espace creux (13) du corps de silencieux (1), un trou (8) ou une perforation de l'enveloppe dans la coque intérieure ou un tube intérieur (5) est de nouveau fermé(e) en insérant un tube intermédiaire (9) dans la coque intérieure ou dans le tube intérieur (5).
  9. Silencieux à absorption fabriqué d'après un procédé selon l'une des revendications 1 à 8, caractérisé en ce qu'une croûte externe ou une coque externe (4) du corps de silencieux (1) présente au moins une ouverture de remplissage (3) pour l'introduction ultérieure de la laine de verre (2) dans le corps de silencieux (1) préfabriqué assemblé, laquelle est fermée après l'introduction de la laine de verre (2).
  10. Silencieux selon la revendication 9, l'ouverture de remplissage (3) du corps de silencieux (1) qui sera ultérieurement muni de laine de verre (2) présentant une fermeture soudée (10) sous la forme d'un bouchon soudé (figure 1).
  11. Silencieux selon la revendication 9, l'ouverture de remplissage (3) du corps de silencieux (1) qui sera ultérieurement muni de laine de verre (2) présentant une fermeture rivetée (11) (figure 2).
  12. Silencieux selon l'une des revendications 9 à 11, le corps de silencieux (1) muni de laine de verre (2) présentant une coque externe (4) appliquée par pression ou une coque externe au moins partiellement comprimée, laquelle est éventuellement encore soudée (figure 4).
  13. Silencieux selon l'une des revendications 9 à 12, une coque intérieure ou un tube intérieur (5) du corps de silencieux (1) présentant un trou (8) ou une perforation de l'enveloppe qui est fermé(e) en insérant un tube intermédiaire (9) après l'introduction de la laine de verre (2) (figure 6).
EP98117027A 1997-12-24 1998-09-09 Procédé de fabrication d' un silencieux à absorption Expired - Lifetime EP0926320B1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE19757810 1997-12-24
DE19757810 1997-12-24
DE19811192A DE19811192A1 (de) 1997-12-24 1998-03-14 Verfahren zur Herstellung eines Absorptions-Schalldämpfers
DE19811192 1998-03-14

Publications (3)

Publication Number Publication Date
EP0926320A2 EP0926320A2 (fr) 1999-06-30
EP0926320A3 EP0926320A3 (fr) 2003-01-02
EP0926320B1 true EP0926320B1 (fr) 2006-05-24

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Family Applications (1)

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EP98117027A Expired - Lifetime EP0926320B1 (fr) 1997-12-24 1998-09-09 Procédé de fabrication d' un silencieux à absorption

Country Status (3)

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US (1) US6158547A (fr)
EP (1) EP0926320B1 (fr)
DE (1) DE59813552D1 (fr)

Cited By (1)

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US11071993B2 (en) 2015-03-11 2021-07-27 Owens Corning Intellectual Capital, Llc Methods and systems for filling mufflers with fibrous material

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US6317959B1 (en) * 1999-02-16 2001-11-20 Owens Corning Sweden A.B. Process and apparatus for packing insulation material in a passage between first and second elements
US6543576B1 (en) * 2000-07-18 2003-04-08 Owens-Corning Fiberglas Technology, Inc. Multiple layer fiber filled sound absorber and a method of manufacturing the same
WO2002038419A1 (fr) 2000-11-07 2002-05-16 Owens Corning Ensemble pare-chocs/silencieux
US6467571B2 (en) * 2000-12-11 2002-10-22 Nakagawa Sangyo Co., Ltd. Sound absorbing material, muffler using the sound absorbing material, and method for forming sound absorbing layer thereof
US6412596B1 (en) 2001-02-01 2002-07-02 Owens Corning Composites Sprl Process for filling a muffler and muffler filled with fibrous material
US6446750B1 (en) 2001-03-16 2002-09-10 Owens Corning Fiberglas Technology, Inc. Process for filling a muffler shell with fibrous material
US6581723B2 (en) 2001-08-31 2003-06-24 Owens Corning Composites Sprl Muffler shell filling process, muffler filled with fibrous material and vacuum filling device
US6607052B2 (en) 2001-09-12 2003-08-19 Owens Corning Composites Sprl Muffler shell filling process and muffler filled with fibrous material
US7077922B2 (en) 2003-07-02 2006-07-18 Owens Corning Composites S.P.R.L. Technique to fill silencers
DE102006016096B3 (de) * 2006-04-04 2007-12-13 J. Eberspächer GmbH & Co. KG Bauteilanordnung und zugehöriges Herstellungsverfahren
US7934580B2 (en) 2006-04-12 2011-05-03 Ocv Intellectual Capital, Llc Long fiber thermoplastic composite muffler system
US7942237B2 (en) 2006-04-12 2011-05-17 Ocv Intellectual Capital, Llc Long fiber thermoplastic composite muffler system with integrated reflective chamber
FR2911165B1 (fr) * 2007-01-10 2010-01-22 Faurecia Sys Echappement Procede pour la fabrication d'un element d'echappement d'une ligne d'echappement d'un vehicule a moteur thermique et element d'echappement, notamment obtenu par la mise en oeuvre de ce procede
DE102007010814A1 (de) * 2007-03-06 2008-09-11 Arvinmeritor Emissions Technologies Gmbh Schalldämpfer-Dämmelement, Schalldämpfer sowie Verfahren zur Herstellung eines Schalldämpfers
DE102007027372A1 (de) * 2007-06-11 2008-12-18 Cognis Oleochemicals Gmbh Verfahren zur Hydrierung von Glycerin
US7975382B2 (en) * 2007-10-30 2011-07-12 Ocv Intellectual Capital, Llc Method for filling a muffler cavity
US20100307863A1 (en) * 2007-12-14 2010-12-09 Ocv Intellectual Capital, Llc Composite muffler system thermosetable polymers
US8590155B2 (en) 2009-06-03 2013-11-26 Ocv Intellectual Capital, Llc Apparatus for and process of filling a muffler with fibrous material utilizing a directional jet
US8474115B2 (en) 2009-08-28 2013-07-02 Ocv Intellectual Capital, Llc Apparatus and method for making low tangle texturized roving
CN103925053A (zh) * 2013-01-14 2014-07-16 三河三友汽车部件有限公司 车用消音器的制造方法
DE102016106125A1 (de) * 2016-04-04 2017-10-05 Faurecia Emissions Control Technologies, Germany Gmbh Isoliervorrichtung für eine Abgasanlage, Abgasanlage und Verfahren zur Herstellung einer Isoliervorrichtung
WO2020075289A1 (fr) * 2018-10-12 2020-04-16 株式会社クレファクト Procédé de remplissage de fibre de verre pour silencieux et dispositif de remplissage de fibre de verre
JP7195183B2 (ja) * 2019-03-06 2022-12-23 三恵技研工業株式会社 消音器及びその製造方法
JP7260511B2 (ja) * 2020-08-07 2023-04-18 株式会社ユタカ技研 消音器への吸音材充填方法

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11071993B2 (en) 2015-03-11 2021-07-27 Owens Corning Intellectual Capital, Llc Methods and systems for filling mufflers with fibrous material

Also Published As

Publication number Publication date
EP0926320A2 (fr) 1999-06-30
EP0926320A3 (fr) 2003-01-02
US6158547A (en) 2000-12-12
DE59813552D1 (de) 2006-06-29

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