EP1010869A1 - Elément d'insonorisation à insérer dans un silencieux, silencieux et son procédé de fabrication - Google Patents

Elément d'insonorisation à insérer dans un silencieux, silencieux et son procédé de fabrication Download PDF

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Publication number
EP1010869A1
EP1010869A1 EP98124069A EP98124069A EP1010869A1 EP 1010869 A1 EP1010869 A1 EP 1010869A1 EP 98124069 A EP98124069 A EP 98124069A EP 98124069 A EP98124069 A EP 98124069A EP 1010869 A1 EP1010869 A1 EP 1010869A1
Authority
EP
European Patent Office
Prior art keywords
sound insulation
insulation insert
silencer
hose
sleeve
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.)
Withdrawn
Application number
EP98124069A
Other languages
German (de)
English (en)
Inventor
Maurits Knopjes
Wiro Vosskühler
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.)
HKO Isolier und Textiltechnik GmbH
Original Assignee
HKO Isolier und Textiltechnik GmbH
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 HKO Isolier und Textiltechnik GmbH filed Critical HKO Isolier und Textiltechnik GmbH
Priority to DE29824553U priority Critical patent/DE29824553U1/de
Priority to EP98124069A priority patent/EP1010869A1/fr
Publication of EP1010869A1 publication Critical patent/EP1010869A1/fr
Withdrawn legal-status Critical Current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
    • 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
    • F01N2310/00—Selection of sound absorbing or insulating material
    • F01N2310/04—Metallic wool, e.g. steel wool, copper wool 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

Definitions

  • the present invention relates to a sound insulation insert according to the preamble of claim 1 and method for producing a sound insulation insert or 15. Silencer according to the preamble of claim 12 and 15 respectively.
  • a silencer working according to the absorption principle usually has a so-called sieve tube or guide tube provided with openings, be passed through the exhaust gases of an associated internal combustion engine.
  • the Sieve tube or guide tube is surrounded by an insulating material that absorbs sound.
  • Insulating material is suitable, for example, textured glass fibers or yarns.
  • the silencer has a screen or guide tube for receiving the insulation material surrounding, often hollow cylindrical or annular receiving space. Manual stuffing of the recording space with loose insulation material is very labor intensive and unsuitable for mass production.
  • From DE - U - 298 07 forming the starting point of the present invention 858 is already a sound insulation insert with a textile material absorbing insulation material Known envelope.
  • the sound insulation insert is essentially hollow cylindrical and can therefore very easily on the screen or guide tube of a silencer be pushed on or pushed into the receiving space of the silencer.
  • the shell of the sound insulation insert is made of a textile fabric, that was initially cut into a rectangular shape and with internal insulation material folded and sewn on the open sides. The so educated The cushion is then sewn to the hollow cylindrical sound insulation insert shaped along one long side.
  • the present invention has for its object to provide a sound insulation insert, a silencer and method of making a sound insulation insert and specify a silencer so that an optimal adaptation of the sound insulation insert to a receiving space of a silencer, especially one smooth surface inside and / or outside installation of the sound insulation insert, enables becomes.
  • a basic idea of the present invention is the sound insulation insert to be provided with a sleeve which is seamless in the longitudinal direction and / or is designed to be elastically stretchable, so that the sound insulation insert has a receiving space fill in a silencer as completely as possible and with its casing at least largely smoothly on the walls delimiting the receiving space or a sieve or guide tube passing through the receiving space Plant can come.
  • the aforementioned training is in accordance with a preferred embodiment thereby achieved that the sheath from an elastically stretchable, in the longitudinal direction seamless tubing is made.
  • the production of the shell from one Piece of tubing that is at one end of the sleeve substantially according to the length of the resulting sound insulation insert is turned over, or from two pieces of hose simplifies the manufacture of the sound insulation insert considerably, since it is sewn in the longitudinal direction and possibly gluing the longitudinal edges are not required.
  • the Hose piece When using a single piece of tubing to form the sheath, the Hose piece then approximately in the area of the axial half, preferably to the outside is handled, the manufacturing effort is further minimized, since at most Area of a front edge, d. H. at the end opposite the folded end End, a seam must be provided for closing the envelope. With appropriate Formation of the hose, d. that is, if the hose is in sufficient The above-mentioned front seam can even pull together radially elastically completely eliminated.
  • the carrier is preferably sleeve-shaped, for example as a cardboard sleeve, so that the finished sound insulation insert together with the carrier a delivery or Sales unit forms.
  • a carrier sleeve With appropriate dimensioning of the carrier sleeve namely, it is possible to slide the sleeve onto a screen or guide tube of a silencer and then out of the sound insulation unit and from the sieve or Pull off the guide tube so that the sound insulation insert on the screen or guide tube remains and especially due to its elasticity and radial preload inwards evenly on the outside of the screen or guide tube to the system is coming.
  • the elastically stretchable sheath leads in particular with a certain pre-stretch through appropriate filling with preferably elastically compressible insulating material to an optimal radial and / or axial deformability of the resulting Sound insulation insert, so that an optimal adaptation to the sound insulation insert receiving receiving space of a silencer is made possible.
  • This optimal Adaptability especially with the tendency to have a recording space evenly, Filling out completely and smoothly results in a sound insulation insert with certain dimensions and a certain filling for different Types of silencers with different dimensions can be used is. As a result, the unit costs can be significant with appropriate mass production be reduced.
  • the casing is relatively coarse-meshed educated. This is the desired adaptability of the resulting sound insulation insert beneficial, whereby mineral and / or organic materials for Manufacture of the cover can be used.
  • Fig. 1 shows in section a proposed sound insulation insert 1 for a silencer 2, as it is exemplary in Fig. 3, also in a longitudinal section, is shown.
  • the muffler 2 works on the absorption principle and will therefore also referred to as absorption silencers. It is especially for one Internal combustion engine, not shown, for sound insulation in a likewise not Exhaust system shown, for example, provided on a motorcycle. However other uses are also possible.
  • the sound insulation insert 1 has one with insulation material 3 filled casing 4.
  • Sound insulation insert 1 is in the illustration example essentially tubular or hollow cylindrical with a main direction of extension formed in the axial or longitudinal direction 5.
  • the sound insulation insert is in the illustration example 1 at least essentially rotationally symmetrical to the longitudinal direction 5 educated. However, this is not necessarily the case.
  • the sound insulation insert 1 can assume a virtually any cross-sectional shape, at least when installed. In the broadest sense, the term "tubular" is therefore a hollow one Any cross-section shape with possibly a cross-section and / or in axial Understand direction of varying radial thickness.
  • the sound insulation insert 1 is in a receiving space 6 of the silencer 2 added.
  • the sound insulation insert 1 surrounds Sieve or guide tube 8 of the silencer 2 provided with openings 7. Exhaust gases from an associated internal combustion engine (not shown) are passed through the guide tube 8 o. Like. guided or passed in the longitudinal direction 5, the perforations forming perforations 7 sound pass into the receiving space 6 leave where the sound is absorbed by the insulating material 3.
  • An optimal one and predeterminable absorption behavior is only ensured if the sound insulation insert 1 the receiving space 6 in the silencer 2 as evenly as possible and at least completely fill it out. This is due to the proposed Training of the sound insulation insert 1 at least as far as possible ensured, the proposed sound insulation insert 1 in optimal Adapted to the respective receiving space 6.
  • the casing 4 is preferably made from a single piece of an endless in the example Hose 9 formed.
  • the hose 9 is a seamless, preferably coarse-mesh knitwear with high axial and / or radial, elastic Elasticity.
  • the tube 9 has loose, untensioned or not radial expanded state has a smaller clear diameter than a carrier 10, onto which the hose 9 is pulled with radial expansion.
  • the carrier 10 indicated in FIG. 2 is sleeve-shaped in the example shown, in particular formed by a cardboard sleeve, and has an inner diameter that is larger than the outer diameter of the guide tube 8 of the silencer 2 is and according to a preferred embodiment is essentially 6 cm.
  • the tube 9 is pulled onto the carrier 10 so far and in the example shown turned over with a section beginning at its free end and on a preferably tubular or sleeve-shaped, the support body 11, which surrounds the support 10 and is radially spaced apart, that an end 12 of the sleeve 4 is formed in the region of the radial envelope and that the length of the retracted portion of the tube 9 at least substantially the axial length of the hose section remaining on the carrier 10 or corresponds to the desired axial length of the resulting casing 4. Possibly. can also later cutting or trimming to a desired axial Length.
  • the insulating material 3, not shown in FIG. 2, is then in accordance with arrows 13 in that between the inside of the holding body 11 and that on the outside of the carrier 10 adjacent hose section formed annular space 14 filled.
  • the insulating material 3 is preferably formed like a fiber or from pieces of fibers and / or yarns. It consists in particular of mineral and / or organic material and is preferably heat-resistant as required.
  • the insulating material 3 made of glass, silicate, silicate / calcium and / or be made of organic fibers.
  • the insulating material 3 is preferably very voluminous and / or elastically compressible. This can be achieved by appropriately textured surfaces of fiber pieces or pieces of yarn can be achieved.
  • the holding body 11 becomes open End 15 of the sleeve 4 formed by the tube 9 pulled out and that open end 15 can then be sewn or closed in some other way are, if this is necessary at all, since the hose 9 with its radial radially contracts the outer free end and thus the open end 15 of the casing 4th keeps closed anyway.
  • the hose 9 can also be turned inwards to form the annular space 14 become.
  • Another alternative is to use two pieces of hose, one piece of tubing on the carrier 10 and the other piece of tubing is pushed onto the holding body 11.
  • annular space 14 can vary greatly depending on the requirement can be described in the broadest sense as "tubular".
  • Fig. 1 shows the finished sound insulation insert 1 after removal of the holding body 11 and, if applicable, the free end 15 is closed.
  • the sound insulation insert 1 preferably forms a delivery or sales unit together with the carrier 10, the carrier 10, with the appropriate dimensions, being an ideal assembly or Installation aid represents, as explained below.
  • the Sound insulation insert 1 By appropriately filling the shell 4 of the sound insulation insert 1 with insulation material 3 and appropriate selection of the insulating material 3 ensures that the Sound insulation insert 1 the receiving space 6 in the silencer 2 at least as far as possible fills out completely and evenly.
  • the Silencer 2 After inserting or placing the Sound insulation insert 1 together with the guide tube 8 in a preferably also tubular and in particular metallic outer housing 16 of Muffler 2 or insertion of the sound insulation insert 1 in the recording room 6, which is formed between the guide tube 8 and the outer housing 16, the Silencer 2 at the end by, for example, annular end caps 17 or the like.
  • the silencer 2 can then be delivered or in an exhaust system or the like.
  • Intermediate sleeve 18 is preferably made of an opposite insulating material 3 manufactured much more heat-resistant material and serves to protect the Sound insulation insert 1 or the insulation material 3 from excessive heat.
  • the Intermediate sleeve 18 can, for example, before sliding the carrier 10 onto the guide tube 8 postponed and with a correspondingly softer or more flexible training can be locked or fixed by the later sound insulation insert 1.
  • the intermediate sleeve 18 can also be integrated in the sound insulation insert 1, d. that is, be introduced into the casing 4 before filling with insulating material 3. Usually such an intermediate sleeve is not required.
  • silencer 2 and Sound insulation insert 1 represent only an illustrative embodiment and geometric shapes that differ from this depending on the application are.
  • modifications of the guide tube 8 are also possible, for example End connector or the like, not shown, and the outer housing 16 and the end caps 17 possible.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Exhaust Silencers (AREA)
EP98124069A 1998-12-18 1998-12-18 Elément d'insonorisation à insérer dans un silencieux, silencieux et son procédé de fabrication Withdrawn EP1010869A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DE29824553U DE29824553U1 (de) 1998-12-18 1998-12-18 Schalldämmeinsatz für einen Schalldämpfer,Schalldämpfer und Verkaufseinheit
EP98124069A EP1010869A1 (fr) 1998-12-18 1998-12-18 Elément d'insonorisation à insérer dans un silencieux, silencieux et son procédé de fabrication

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP98124069A EP1010869A1 (fr) 1998-12-18 1998-12-18 Elément d'insonorisation à insérer dans un silencieux, silencieux et son procédé de fabrication

Publications (1)

Publication Number Publication Date
EP1010869A1 true EP1010869A1 (fr) 2000-06-21

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Family Applications (1)

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EP98124069A Withdrawn EP1010869A1 (fr) 1998-12-18 1998-12-18 Elément d'insonorisation à insérer dans un silencieux, silencieux et son procédé de fabrication

Country Status (1)

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EP (1) EP1010869A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2003387A1 (fr) * 2007-06-12 2008-12-17 G + H Schallschutz GmbH Dispositif destiné à l'amortissement de bruits acoustiques, circuit de chauffage et circuit d'eau
CN108799686A (zh) * 2018-08-30 2018-11-13 江苏华强新能源科技有限公司 用于燃机水洗系统排水管路的消声装置

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5838315A (ja) * 1981-08-31 1983-03-05 Nippon Radiator Co Ltd 消音器における吸音材装着方法
US4580656A (en) * 1984-04-06 1986-04-08 Sankei Giken Kogyo Kabushiki Kaisha Absorbent retainer for absorbent type muffler
US5134846A (en) * 1989-11-22 1992-08-04 Thermo-Tec High Performance Automotive Inc. Insulated exhaust cover
US5390962A (en) * 1991-05-17 1995-02-21 Tokai Rubber Industries, Ltd. Flexible joint for exhaust pipe of motor vehicle
EP0822322A1 (fr) * 1996-02-21 1998-02-04 Ibiden Co, Ltd. Silencieux pour moteur a combustion interne
DE29807858U1 (de) 1998-05-01 1998-08-27 Goertz, Johannes Ulrich, 41334 Nettetal Schalldämpfereinsätze aus texturiertem Glasgarn

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5838315A (ja) * 1981-08-31 1983-03-05 Nippon Radiator Co Ltd 消音器における吸音材装着方法
US4580656A (en) * 1984-04-06 1986-04-08 Sankei Giken Kogyo Kabushiki Kaisha Absorbent retainer for absorbent type muffler
US5134846A (en) * 1989-11-22 1992-08-04 Thermo-Tec High Performance Automotive Inc. Insulated exhaust cover
US5390962A (en) * 1991-05-17 1995-02-21 Tokai Rubber Industries, Ltd. Flexible joint for exhaust pipe of motor vehicle
EP0822322A1 (fr) * 1996-02-21 1998-02-04 Ibiden Co, Ltd. Silencieux pour moteur a combustion interne
DE29807858U1 (de) 1998-05-01 1998-08-27 Goertz, Johannes Ulrich, 41334 Nettetal Schalldämpfereinsätze aus texturiertem Glasgarn

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 007, no. 120 (M - 217) 25 May 1983 (1983-05-25) *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2003387A1 (fr) * 2007-06-12 2008-12-17 G + H Schallschutz GmbH Dispositif destiné à l'amortissement de bruits acoustiques, circuit de chauffage et circuit d'eau
CN108799686A (zh) * 2018-08-30 2018-11-13 江苏华强新能源科技有限公司 用于燃机水洗系统排水管路的消声装置

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