EP1861592A1 - Small mattress-like glass fibre structure and method for its manufacture - Google Patents

Small mattress-like glass fibre structure and method for its manufacture

Info

Publication number
EP1861592A1
EP1861592A1 EP06701623A EP06701623A EP1861592A1 EP 1861592 A1 EP1861592 A1 EP 1861592A1 EP 06701623 A EP06701623 A EP 06701623A EP 06701623 A EP06701623 A EP 06701623A EP 1861592 A1 EP1861592 A1 EP 1861592A1
Authority
EP
European Patent Office
Prior art keywords
glass fibre
reel
winder
tube
muffler
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.)
Granted
Application number
EP06701623A
Other languages
German (de)
French (fr)
Other versions
EP1861592B1 (en
Inventor
Luigi Pianese
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.)
Vale Srl
Original Assignee
Vale Srl
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 Vale Srl filed Critical Vale Srl
Publication of EP1861592A1 publication Critical patent/EP1861592A1/en
Application granted granted Critical
Publication of EP1861592B1 publication Critical patent/EP1861592B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

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
    • F01N1/02—Silencing apparatus characterised by method of silencing by using resonance
    • F01N1/04—Silencing apparatus characterised by method of silencing by using resonance having sound-absorbing materials in resonance chambers
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H3/00—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length
    • D04H3/002—Inorganic yarns or filaments
    • D04H3/004—Glass yarns or filaments
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H3/00—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length
    • D04H3/02—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of forming fleeces or layers, e.g. reorientation of yarns or filaments
    • D04H3/07—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of forming fleeces or layers, e.g. reorientation of yarns or filaments otherwise than in a plane, e.g. in a tubular way
    • D04H3/073—Hollow cylinder shaped
    • 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
    • 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
    • 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

Definitions

  • the present invention relates to the field of mufflers, specifically to mufflers for internal combustion engines.
  • the muffler can be simply closed and this can be done indifferently using a covering or an embedding technique, both for moulded or rolled muffler types. This can be done because the sound absorbing material processed according to the present invention does not at all protrude from the outer contour of the baffles.
  • the present invention has the object to indicate a new, extremely practical, cheap and quick method of filling the mufflers of internal combustion engines with the sound deadening material.
  • the aforesaid tube, or reel- winder which will be completely wrapped by the glass fibre mass, due to the rotation imparted to it in a conventional manner by any kind of motor (not shown), will have a length equal to the total circumference of the ducts to be soundproofed.
  • the extraction ("unthreading") of the glass fibre mass thus wound around the tube or reel-winder will be facilitated by providing one or more slits on the tube, or by a superposition of lamellae or annular elements modifying (increasing) the diameter of the original tube.
  • the extraction operation could also be facilitated by realizing the reel-winder with a slight taper.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Textile Engineering (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Inorganic Chemistry (AREA)
  • Exhaust Silencers (AREA)
  • Nonwoven Fabrics (AREA)
  • Glass Compositions (AREA)

Abstract

A method for filling with sound absorbing material (1) the mufflers of internal combustion engines. The sound absorbing material (1), normally consisting of glass fibre, is wound - according to the method of the invention - around a reel- winder or simply around a tube with a diameter corresponding to the distance between the baffles which delimit (confine) the ducts (2) of the muffler. The length of the reel-winder or the tube is equal to the total circumference of the ducts (2) around which the fibre will be wound in order to obtain a soundproofing mass specifically realised to fill up the volume. The soundproofing mass obtained in this way, after its extraction from the tube or reel-winder on which it was wound, will first be squeezed and thereafter sewn in one or more of its parts, to facilitate its handling.

Description

Description Small mattress-like glass fibre structure and method for its manufacture
Field of Invention
The present invention relates to the field of mufflers, specifically to mufflers for internal combustion engines.
Background Art
Until today the interior of mufflers having metallic sound-deadening enclosures, with either single or multiple, e.g. double, triple or quadruple ducts, has been filled with sound-deadening materials by means of classical pre-moulding or blowing methods. These already known methods can be carried out by employing several techniques that can be globally subdivided into two different groups. The first amounts to blowing-in a sound-deadening mass, usually formed of a thread of glass fibre, through a hole obtained on the external housing (or enclosure) of the muffler. The sound-deadening material is blown-in through the hole and fills the whole space between the individual ducts and the external metallic housing that encloses them. The second method consists in the application of a semi-rigid, sound absorbing, and adequately pre-moulded mass, within the muffler, before the latter is hermetically closed. However, both techniques have some drawbacks. The first one is not easily carried out due to the complexity of the blowing operation and to the time required for filling the body of the muffler. On the other hand, the second technique is decisively more expensive and therefore it is economically disadvantageous.
Disclosure of Invention
The object of the present invention is to propose a method of introducing a glass fibre inside a muffler of an internal combustion engine whose muffler has an internal structure defined as "multiple duct structure". The inventive concept at the origin of the present invention is based on the principle of combining the advantages of the aforementioned techniques, without, however, be forced to accept their burdensome drawbacks. Therefore, the present invention intends to completely change the known techniques by providing a cheap product, that can be produced in large amounts with appropriate equipments and machines, and which further can be pre-packaged and is extremely easy to insert into the muffler before the latter is definitively closed. The sound absorbing material, i.e. the glass fibre, instead of being slowly blown into the muffler, will be directly and rapidly prepared in the factory in accordance with the technique of the present invention. A first phase of the method consists in winding, around a rotating tube or a reel-winder with a specific shape, the thread of glass fibre which will form the final hank (skein) 1 to be introduced into the muffler. Said tube or reel-winder, set in rotation around its axis by an electric motor, will give rise to a reel of glass fibre thread, and the diameter of this reel will be correlated to the distance between the internal baffles of the muffler that contain the discharge gas ducts. On the other hand, the length of the tube or reel-winder will be similar to the circumference of the total number of said (gas discharge) ducts to be soundproofed. Once a structure made of glass fibre has been obtained in accordance with the desired type of muffler, said structure or mass is simply taken manually from the tube or reel- winder on which it was wound, and then it is squeezed.
According to a first embodiment of the invention, said squeezing of the sound- deadening mass is performed in order to allow an industrial sewing machine, of a type similar to the one used by shoemakers, to sew it in one or more parts, so that said mass will finally assume a substantially prismatic shape. The object of this central sewing (central seam) is to permit the handling of the glass fibre, by preventing the individual threads from falling down or getting entangled in an irregular manner before their introduction into the muffler and after their extraction from the tube on which they have been wound. The product, sewed in this manner, is ready to be introduced manually within the muffler, and it has a width and a length which are perfectly adapted to the space existing within the muffler to be soundproofed. After the product has been put in place, by simply winding it around the ducts located between the two baffles, the muffler can be simply closed and this can be done indifferently using a covering or an embedding technique, both for moulded or rolled muffler types. This can be done because the sound absorbing material processed according to the present invention does not at all protrude from the outer contour of the baffles. Moreover, according to a second embodiment, the present invention has the object to indicate a new, extremely practical, cheap and quick method of filling the mufflers of internal combustion engines with the sound deadening material. Said sound- deadening material is formed exclusively of glass fibre, without any addition of adhesives, additives, or other polymers used for welding or sewing purposes, or for gluing purposes, in order to facilitate the handling of the material before its insertion in place. These substances could in fact possibly give rise to toxic fumes at the elevated operation temperatures of the mufflers, or could require more complex manual operations in order to obtain a mattress-like structure of glass fibre to be introduced into the muffler. The present invention, in the form of its second embodiment, further improves the first embodiment by allowing the realisation of manufactured articles made of glass fibre, which are rapidly obtained and do not require any addition of other polymers or adhesives to render them handy before their introduction inside the muffler to be soundproofed. This new result is achieved by performing a movement with a compressed air jet, both in the vertical and the horizontal - or diagonal - direction, to obtain a continuous or discontinuous "seam" ("sewing line") produced in the latter case by an intermittent air jet, this seam being obtained on the product after its extraction from the tube or reel-winder on which it was previously wound. Also this second embodiment of the present invention consists in a new method of manufacture of sound-absorbing mattress-like structures and it provides for various simple fabrication steps. The first of these steps is analogous to the corresponding one of the first embodiment and consists in winding a desired amount of glass fibre around a tube, or reel- winder, having a diameter equal to the distance between the baffles to be soundproofed. The aforesaid tube, or reel- winder, which will be completely wrapped by the glass fibre mass, due to the rotation imparted to it in a conventional manner by any kind of motor (not shown), will have a length equal to the total circumference of the ducts to be soundproofed. The extraction ("unthreading") of the glass fibre mass thus wound around the tube or reel-winder, will be facilitated by providing one or more slits on the tube, or by a superposition of lamellae or annular elements modifying (increasing) the diameter of the original tube. The extraction operation could also be facilitated by realizing the reel-winder with a slight taper. The second, innovative processing step, which characterises the second embodiment and thereby renders it different from the first embodiment, consists in squeezing (compressing) the so obtained article of glass fibre while forcing the same to pass beneath one or more compressed air jets whose air pressure is within the region from 1 to 12 atmospheres (atm); the appropriate, selected value of pressure, depends on the Tex of the glass fibre which is comprised between 200 and 9600 Tex, and on the density of the fibre, all of which may vary according to the values specified by the customer. These focalised (concentrated) compressed air jets cause a mutual entanglement between the individual threads of glass fibre, thereby rendering extremely handy the so obtained mattress-like structure of glass fibre. This new method according to the second embodiment, due to the velocity with which the glass fibre can be made to slide beneath the compressed air jet(s), further reduces the manpower required for the job. This reduction allows to save one half of the required production time and it also increases safety on the production site, since the simple use of compressed air - acting as "glue" - in place of needles and adhesives makes the whole production extremely rapid, harmless, and cheap, due to the fact that no additional material is directly utilised in the product, apart from the glass fibre and compressed air. The number of compressed air jets and their position is directly related to the size of the "small mattress" to be packaged, and as a general rule it may be stated that the greater its size, the greater will be the number of air jets required. The complete absence of seams (sewing lines) and of gluing operations, in this second embodiment, allows the mattress-like structure of glass fibre to be extended - by applying a simple traction thereto - to an additional length of about one third of its initial total length, thereby increasing the efficiency and standardisation of the product. A further advantage of the present invention consists in providing industry with a "small mattress" of sound absorbing material which is realized, in a proportion of 100%, of glass fibre alone. This is advantageous both under the ecological and the bureaucratic viewpoint, since it avoids to be forced to provide the technical specific parameters required by the rigorous European anti-pollution regulations with respect to the materials added to the glass fibre roving (= continuous thread of glass fibre).
Brief Description of DrawinRS
The present invention will now be explained with reference to the drawings, which show two embodiments thereof, wherein:
Fig. 1 shows a small mattress or mattress-like structure consisting of a glass fibre, processed according to the method corresponding to the first embodiment of the present invention, before its winding around the ducts of a muffler of an internal combustion engine;
Fig. 2 shows a muffler with three ducts, of an internal combustion engine, wherein the glass fibre sewed according to the first embodiment of the invention is wound between the two baffles; the mass of glass fibre (small mattress) is first fitted in the space between the individual ducts and then it is wound around them;
Fig. 3 shows a muffler of an internal combustion engine, on whose ducts there has been applied - so as to perfectly occupy the space between the two baffles - the glass fibre (small glass fibre mattress) processed according to the first embodiment of the present invention;
Fig. 4 shows a small, sound-absorbing mattress, or mattress-like structure, made of glass fibre, processed according to the method of the second embodiment of the present invention (which does not include a sewing step), that is, subjecting the small mattress to the action of compressed air;
Fig. 5 is a perspective view of the muffler surrounded by the sound-deadening material (small mattress of glass fibre) which is wound around the muffler and is processed according to the second embodiment of the present invention; the figure shows the glass fibre and the ducts, besides the baffles between which the glass fibre is wound, the latter having a "welding line formed by compressed air".
Description of Preferred Embodiments of the Invention The objects, the features, and the advantages of the present invention have already been illustrated in detail above.
In substance, in the first embodiment of the invention, a glass fibre is wound around a tube or reel- winder (not shown) of adequate diameter; this manufacturing step does not differ from the corresponding one of the second embodiment of the invention. Therefore, the glass fibre (which then forms a "tube of glass fibre") is taken
(extracted or "unthreaded") from the respective tube or reel-winder, and the "tube of glass fibre" is subsequently squeezed (flattened).
From now on, the two embodiments (methods) according to the present invention differ from each other, because in one case (first embodiment), depending on the size of the squeezed small mattress of glass fibre, one or more seams (sewing lines) 4 (cf. Fig. 1-3, in which a single sewing line is present) will be provided on the small mattress 1, while in the other case (i.e. the second embodiment; cf. Figs. 4 and 5), the small mattress 1 ' will be "welded" by means of compressed air (causing mutual entanglement between individual threads of the fibre along the line indicated by 4'). Thus, the small mattress or structure 1 or 1 ' can in both cases be easily handled by an operator, in order to realise a muffler for a vehicle with internal combustion engine, by winding the mattress on the ducts 2 (the latter are three in the illustrative drawings of Figs. 1-3 and 5). Notice that the space between the baffles 3 is entirely filled up by the glass fibre 1 or 1 ' :
Although the second embodiment further speeds up and facilitates the manufacturing process with respect to the background art, a particular advantage, shared by both embodiments, is that the mass of glass fibre (1 or 1') does not include additional materials other than a glass fibre. In fact, preferably, the sewing 4 of the first embodiment is entirely performed with glass fibre threads.

Claims

Claims
1. A method for filling with sound-deadening material the mufflers of internal combustion engines, said sound-deadening, or sound-absorbing material, being formed of glass fibre, wherein the method includes the following steps:
- a thread of glass fibre is wound around a tube or a reel winder, in order to form a tubular mass of glass fibre, said tubular mass having a desired diameter correlated with, and similar to the distance between two baffles (3) confining the duct(s) to be soundproofed, and the length of said tubular mass of glass fibre being substantially equal to the length of the tube or reel- winder on which it is wound, and the latter length being in turn correlated to the total circumference of the duct(s) (2) to be wrapped; wherein, moreover, the amount of glass fibre used is specified according to the volume of the muffler to be filled up;
- extraction of the tubular mass of glass fibre from the reel- winder or tube around which the respective thread of glass fibre was wound;
- squeezing, that is flattening, of said tubular mass of glass fibre; - creation of one or more lines (4; 4') of irreversibly entangled or united glass fibres, these lines being obtained by sewing, or by ejecting compressed air jets through one or more nozzles, so as to produce a prefabricated mattress (1 ; 1 ') made of glass fibre, which is easy to handle, to transport, and is ready to be introduced into a muffler for its soundproofing; - winding of said mattress of glass fibre (1 ; 1 ') around the duct(s) (2) of the muffler;
- closing of the muffler.
2. A method according to claim 1, wherein said tube or reel- winder, on which the thread of glass fibre is wound, has means for facilitating the extraction or separation of the tubular, glass fibre mass, said means being for instance formed by a slit extending for example along about 2/3 of the length of said tube or reel- winder, the latter having a diameter equal to the distance between the inner baffles of the muffler and a length equal to the total circumference of the ducts (2) to be soundproofed.
3. A method according to claim 1 or 2, characterised in that compressed air comes out of the duct(s) at a pressure not exceeding 12 atmospheres.
4. A method according to claim 3, wherein the pressure of the compressed air coming out of at least one duct is comprised in the interval from 6 to 8 atmospheres.
5. A method according to claim 3 or 4, wherein the compressed air jets come out of one or more ducts continuously or intermittently.
6. A method according to any of the preceding claims, wherein the mattress of glass fibre (1') whose lines (4') of entanglement are obtained through compressed air jets, has the property of being extensible by no less than one third of its total length.
7. A method according to any of the preceding claims, wherein the tube or reel- winder can be manually rotated around its own axis, or it can be driven by an electric motor, thereby speeding up the rotation and noticeably increasing the winding speed of the glass fibre.
8. A method according to any of the preceding claims, wherein the sound absorbing material, consisting of glass fibre, is wound around the reel-winder or tube according to the specific technical features of the muffler to be soundproofed, that is, said material may have a diameter, consistence, and winding tension corresponding exactly to the required technical properties.
9. A method according to any of the preceding claims, wherein said mattress of fibre glass (1; 1') is easy to handle and therefore can be packaged, stored and sent/shipped, so that it can be later introduced into the mufflers to be soundproofed.
10. A product made of glass fibre, obtained by the method of the preceding claims, 5 forming a mattress of glass fibre (1 ; 1 ') and having one or more seams or sewing lines (4) realised with a thread of glass fibre or having one or more lines (4') realised by means of compressed air jets, wherein the threads of glass fibre are entangled in an irreversible manner.
10 11. A product of glass fibre according to claim 10, wherein the glass fibres are directly obtained from a machine that ruffles them.
EP06701623A 2005-03-10 2006-01-12 Small mattress-like glass fibre structure and method for its manufacture Expired - Lifetime EP1861592B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT000107A ITRM20050107A1 (en) 2005-03-10 2005-03-10 MATTER MADE ENTIRELY IN FIBERGLASS.
PCT/IT2006/000013 WO2006095373A1 (en) 2005-03-10 2006-01-12 Small mattress-like glass fibre structure and method for its manufacture

Publications (2)

Publication Number Publication Date
EP1861592A1 true EP1861592A1 (en) 2007-12-05
EP1861592B1 EP1861592B1 (en) 2010-03-10

Family

ID=36148700

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06701623A Expired - Lifetime EP1861592B1 (en) 2005-03-10 2006-01-12 Small mattress-like glass fibre structure and method for its manufacture

Country Status (5)

Country Link
EP (1) EP1861592B1 (en)
AT (1) ATE460569T1 (en)
DE (1) DE602006012814D1 (en)
IT (1) ITRM20050107A1 (en)
WO (1) WO2006095373A1 (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102011012156A1 (en) 2011-02-23 2012-08-23 Dbw Holding Gmbh Process for the preparation of a molding material made of fiber materials and apparatus therefor
DE102011012202A1 (en) 2011-02-23 2012-08-23 Dbw Holding Gmbh Silencer insert for motor vehicles and method for the manufacture thereof
US8708096B2 (en) 2011-12-07 2014-04-29 SO.LA.IS—Societa′ Lavorazione Isolanti S.R.L. Con Unico Socio Method and machine for producing a sound-deadening insert for silencer of an exhaust-gas discharge system of an internal-combustion engine
WO2016020851A1 (en) 2014-08-05 2016-02-11 So.La.Is. - Societa' Lavorazione Isolanti - S.R.L. Con Unico Socio Method and machine for producing an insert structured to acoustically and thermally insulate component parts of a vehicle
EP2990623A1 (en) 2014-09-01 2016-03-02 ISOLITE GmbH Acoustic absorber

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104033212A (en) * 2014-06-11 2014-09-10 成都科力夫科技有限公司 Anti-carbon muffler device
ITUA20161725A1 (en) * 2016-03-16 2017-09-16 So La Is Soc Lavorazione Isolanti S R L Con Unico Socio METHOD FOR REALIZING A FIBER MATTRESS TO ACOUSTICALLY AND / OR THERMICALLY INSULATE A COMPONENT OF A MOTOR VEHICLE
CN111434900A (en) * 2019-01-14 2020-07-21 郑州宇通客车股份有限公司 Detachable perforated silencer

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE517282A (en) * 1952-01-30
GB2106591B (en) * 1981-08-26 1985-09-11 Lancaster Glass Fibre Fibrous insert for an i c engine exhaust silencer
JP3670732B2 (en) * 1995-10-24 2005-07-13 大成建設株式会社 Simple soundproof wall for construction site and sound insulation method
DE29807858U1 (en) * 1998-05-01 1998-08-27 Goertz, Johannes Ulrich, 41334 Nettetal Silencer inserts made of textured glass yarn
JP2003106133A (en) * 2001-09-28 2003-04-09 Nippon Glass Fiber Kogyo Kk Muffler of internal combustion engine

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2006095373A1 *

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102011012156A1 (en) 2011-02-23 2012-08-23 Dbw Holding Gmbh Process for the preparation of a molding material made of fiber materials and apparatus therefor
DE102011012202A1 (en) 2011-02-23 2012-08-23 Dbw Holding Gmbh Silencer insert for motor vehicles and method for the manufacture thereof
WO2012113867A1 (en) 2011-02-23 2012-08-30 Dbw Holding Gmbh Muffler insert for motor vehicles and method for producing same
WO2012113866A1 (en) 2011-02-23 2012-08-30 Dbw Holding Gmbh Method for producing a molded material from fiber materials, and device for this purpose
DE202012012979U1 (en) 2011-02-23 2014-06-02 Dbw Holding Gmbh Shaped material of fiber materials and apparatus for the preparation thereof
DE202012012942U1 (en) 2011-02-23 2014-08-18 Dbw Holding Gmbh Silencer insert for motor vehicles
DE102011012202B4 (en) * 2011-02-23 2014-09-25 Dbw Holding Gmbh Silencer insert for motor vehicles and method for the manufacture thereof
US8708096B2 (en) 2011-12-07 2014-04-29 SO.LA.IS—Societa′ Lavorazione Isolanti S.R.L. Con Unico Socio Method and machine for producing a sound-deadening insert for silencer of an exhaust-gas discharge system of an internal-combustion engine
WO2016020851A1 (en) 2014-08-05 2016-02-11 So.La.Is. - Societa' Lavorazione Isolanti - S.R.L. Con Unico Socio Method and machine for producing an insert structured to acoustically and thermally insulate component parts of a vehicle
EP2990623A1 (en) 2014-09-01 2016-03-02 ISOLITE GmbH Acoustic absorber

Also Published As

Publication number Publication date
DE602006012814D1 (en) 2010-04-22
WO2006095373A1 (en) 2006-09-14
ITRM20050107A1 (en) 2006-09-11
ATE460569T1 (en) 2010-03-15
EP1861592B1 (en) 2010-03-10

Similar Documents

Publication Publication Date Title
US4079568A (en) Method for forming fiber-filled articles
EP1861592B1 (en) Small mattress-like glass fibre structure and method for its manufacture
CN104302196B (en) Method and apparatus for supplying from filtering material to filter tip rod forming machine
RU2633855C2 (en) Tobacco smoke filter
US6370747B1 (en) Method and apparatus for the bulk collection of texturized strand
CN120193358B (en) A device and method for preparing spiral auxetic fiber with stable initial structure
JP2536803B2 (en) How to join strand bundles
WO2016044863A2 (en) Packaging method
US20040040450A1 (en) Wire coil winding apparatus and method
US2705862A (en) Knotless spliced twisted paper cord and method of forming the same
US3794268A (en) Tubular films or webs
DE10048118A1 (en) Process for manufacturing an absorption silencer for motor vehicles and absorption silencer
JP2536804B2 (en) Roving connection
US6758998B2 (en) Method and device for inserting fibers in expanded form into a cavity or depositing them on a surface
US3709703A (en) Method of winding tubular films or webs and resulting product
JPH09291488A (en) Steel cord for reinforcing rubber article, and method and apparatus for producing the same
KR20090111905A (en) How to assemble the leather cover of the steering wheel
US3459614A (en) Method for making plastic articles
GB2065596A (en) Improvements in or relating to rigid inserts for silencers
US2422200A (en) Machine for making grommets
JP3643769B2 (en) Cord body fixed length winding drum and winding machine using this drum
KR920009947B1 (en) Forming method for impact-proof hoses and its articles
JPH079814Y2 (en) Casing with net for food packing
JP2506836Y2 (en) Strand joining device
GB1340314A (en) Package of elongate flexible material and method and apparatus for producing such a package

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 20070910

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR

DAX Request for extension of the european patent (deleted)
17Q First examination report despatched

Effective date: 20081002

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

REF Corresponds to:

Ref document number: 602006012814

Country of ref document: DE

Date of ref document: 20100422

Kind code of ref document: P

REG Reference to a national code

Ref country code: DE

Ref legal event code: R096

Ref document number: 602006012814

Country of ref document: DE

Effective date: 20100422

REG Reference to a national code

Ref country code: NL

Ref legal event code: VDEP

Effective date: 20100310

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20100310

LTIE Lt: invalidation of european patent or patent extension

Effective date: 20100310

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20100310

Ref country code: LV

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20100310

Ref country code: PL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20100310

Ref country code: FI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20100310

Ref country code: AT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20100310

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: RO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20100310

Ref country code: NL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20100310

Ref country code: BE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20100310

Ref country code: CY

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20100310

Ref country code: SE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20100310

Ref country code: EE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20100310

Ref country code: ES

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20100621

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20100611

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BG

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20100610

Ref country code: SK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20100310

Ref country code: IS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20100710

Ref country code: CZ

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20100310

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: PT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20100712

Ref country code: DK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20100310

26N No opposition filed

Effective date: 20101213

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20100310

REG Reference to a national code

Ref country code: DE

Ref legal event code: R097

Ref document number: 602006012814

Country of ref document: DE

Effective date: 20101213

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MC

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20110131

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

REG Reference to a national code

Ref country code: IE

Ref legal event code: MM4A

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20110131

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20110131

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20110112

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20110112

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: TR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20100310

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: HU

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20100310

REG Reference to a national code

Ref country code: DE

Ref legal event code: R082

Ref document number: 602006012814

Country of ref document: DE

Representative=s name: CBDL PATENTANWAELTE, DE

REG Reference to a national code

Ref country code: GB

Ref legal event code: 732E

Free format text: REGISTERED BETWEEN 20140220 AND 20140226

REG Reference to a national code

Ref country code: DE

Ref legal event code: R082

Ref document number: 602006012814

Country of ref document: DE

Representative=s name: CBDL PATENTANWAELTE, DE

Effective date: 20140221

Ref country code: DE

Ref legal event code: R081

Ref document number: 602006012814

Country of ref document: DE

Owner name: OCV INTELLECTUAL CAPITAL LLC, TOLEDO, US

Free format text: FORMER OWNER: VALE S.R.L., LUSCIANO, IT

Effective date: 20140227

Ref country code: DE

Ref legal event code: R082

Ref document number: 602006012814

Country of ref document: DE

Representative=s name: CBDL PATENTANWAELTE, DE

Effective date: 20140227

Ref country code: DE

Ref legal event code: R081

Ref document number: 602006012814

Country of ref document: DE

Owner name: OWENS CORNING INTELLECTUAL CAPITAL, LLC, TOLED, US

Free format text: FORMER OWNER: VALE S.R.L., LUSCIANO, IT

Effective date: 20140227

Ref country code: DE

Ref legal event code: R082

Ref document number: 602006012814

Country of ref document: DE

Representative=s name: CBDL PATENTANWAELTE GBR, DE

Effective date: 20140221

Ref country code: DE

Ref legal event code: R081

Ref document number: 602006012814

Country of ref document: DE

Owner name: OCV INTELLECTUAL CAPITAL LLC, US

Free format text: FORMER OWNER: VALE S.R.L., LUSCIANO, IT

Effective date: 20140227

REG Reference to a national code

Ref country code: FR

Ref legal event code: TP

Owner name: OCV INTELLECTUAL CAPITAL, LLC, US

Effective date: 20140214

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 11

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 12

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 13

REG Reference to a national code

Ref country code: DE

Ref legal event code: R081

Ref document number: 602006012814

Country of ref document: DE

Owner name: OWENS CORNING INTELLECTUAL CAPITAL, LLC, TOLED, US

Free format text: FORMER OWNER: OCV INTELLECTUAL CAPITAL LLC, TOLEDO, OHIO, US

REG Reference to a national code

Ref country code: GB

Ref legal event code: 732E

Free format text: REGISTERED BETWEEN 20210916 AND 20210922

REG Reference to a national code

Ref country code: DE

Ref legal event code: R082

Ref document number: 602006012814

Country of ref document: DE

Representative=s name: CBDL PATENTANWAELTE GBR, DE

Ref country code: DE

Ref legal event code: R082

Ref document number: 602006012814

Country of ref document: DE

Representative=s name: CBDL PATENTANWAELTE EGBR, DE

P01 Opt-out of the competence of the unified patent court (upc) registered

Effective date: 20230517

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20250129

Year of fee payment: 20

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20250127

Year of fee payment: 20

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20250127

Year of fee payment: 20

REG Reference to a national code

Ref country code: DE

Ref legal event code: R071

Ref document number: 602006012814

Country of ref document: DE

REG Reference to a national code

Ref country code: GB

Ref legal event code: PE20

Expiry date: 20260111