CN101558193B - Muffler perform and its forming method - Google Patents
Muffler perform and its forming method Download PDFInfo
- Publication number
- CN101558193B CN101558193B CN2007800463675A CN200780046367A CN101558193B CN 101558193 B CN101558193 B CN 101558193B CN 2007800463675 A CN2007800463675 A CN 2007800463675A CN 200780046367 A CN200780046367 A CN 200780046367A CN 101558193 B CN101558193 B CN 101558193B
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- Prior art keywords
- fiber
- preform
- adhesive
- mould
- resin
- Prior art date
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- Expired - Fee Related
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Classifications
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- 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
- D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
- D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
- D04H1/58—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by applying, incorporating or activating chemical or thermoplastic bonding agents, e.g. adhesives
- D04H1/64—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by applying, incorporating or activating chemical or thermoplastic bonding agents, e.g. adhesives the bonding agent being applied in wet state, e.g. chemical agents in dispersions or solutions
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B11/00—Making preforms
- B29B11/14—Making preforms characterised by structure or composition
- B29B11/16—Making preforms characterised by structure or composition comprising fillers or reinforcement
-
- 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
- D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
- D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
- D04H1/58—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by applying, incorporating or activating chemical or thermoplastic bonding agents, e.g. adhesives
- D04H1/587—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by applying, incorporating or activating chemical or thermoplastic bonding agents, e.g. adhesives characterised by the bonding agents used
-
- 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
- D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
- D04H1/70—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres characterised by the method of forming fleeces or layers, e.g. reorientation of fibres
- D04H1/74—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres characterised by the method of forming fleeces or layers, e.g. reorientation of fibres the fibres being orientated, e.g. in parallel (anisotropic fleeces)
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- 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
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2995/00—Properties of moulding materials, reinforcements, fillers, preformed parts or moulds
- B29K2995/0001—Properties of moulding materials, reinforcements, fillers, preformed parts or moulds having particular acoustical properties
- B29K2995/0002—Properties of moulding materials, reinforcements, fillers, preformed parts or moulds having particular acoustical properties insulating
Abstract
In a method of forming a silencer preform from fibers of a fiberizable material, the fibers are fed into a mold, and a low temperature cure binder is applied to the fibers. The binder is cured at a low temperature to bond together the fibers, thereby forming a preform having generally the shape of the mold. The preform is removed from the mold. The preform is structured for insertion into a silencer. A silencer preform includes fibers of a fiberizable material and a low temperature cure binder bonding together the fibers.
Description
Technical field
The present invention relates generally to fibre preforms, particularly is used for the for example preform of silencer or other automobile exhaust parts of muffler.
Background technology
Usually, in the automobile exhaust parts, comprise acoustic energy damping or the decay of sound-absorbing material to be comprised with them when engine arrives atmosphere through gas extraction system at engine exhaust.Often use glass fiber preforms as sound-absorbing material.
The preform that is used for the automobile exhaust parts often passes through the Texturized (varicosityization of continuous glass fibre bundle; Texturizing) (this bundle is separated into monofilament); With this fiber supply in the mould and when with it when Texturized or its fiber is applied adhesive and makes after in mould.Adhesive solidifies so that fiber is bonded together at elevated temperatures, forms the preform of the more or less rigidity with mold shape thus.Put into baking oven through hot-air being blown into the preform that maybe will have uncured adhesive in the fiber, generally the temperature with adhesive and preform rises to solidification temperature.Heating process needs sizable investment and suitable lot of energy, and this can increase makes preform required circulation timei.
German patent application No.06.1092.4.wz discloses the fibre preforms that is used for the automobile exhaust parts, and it comprises the glass fibre that is bonded together with aerodux.During solidification process, adhesive being applied carbon dioxide is cured to use minimum heating.
The open No.06-143272 of Japan Patent discloses the fibre preforms production method.Short glass fiber, mylar and curing agent are sprayed on the mould together.Then at room temperature with resin solidification.
United States Patent(USP) No. 3,927,139 disclose the method for making the resin-bonding fiber reinforced articles through spraying (spray-up) technology.These goods are through spraying to catalyst-liquid resin mixture on the short glass fiber and form.At room temperature this resin is solidified fast.
United States Patent(USP) No. 6,426,121 disclose the binary cross-linkable polymeric binder that is suitable for by nonwoven web material preparation product.This adhesive can at room temperature solidify.
United States Patent(USP) No. 5,766,541 disclose through glass fiber bundle and adhesive are supplied in the mould of perforation, and blow the air of heating so that adhesive solidifies the method for making the fibre preforms that is used for automotive muffler through mould.
Summary of the invention
But the present invention relates to form the method for silencer preform by the fiber of fibration material.This fiber is supplied in the mould.This fiber is applied low-temperature setting adhesive.This adhesive is solidified so that fiber is bonded together, form the preform that roughly has mold shape thus.Preform is removed from mould.This preform is formed the structure of inserting in the muffler.
The invention still further relates to silencer preform.But this preform comprises the fiber of fibration material and the low-temperature setting adhesive that this fiber is bonded together.This preform is formed the structure of inserting in the muffler.
By accompanying drawing of the present invention and detailed description and preferred embodiment, other various aspects of the present invention will become clear.
Description of drawings
Fig. 1 is the perspective view of preform that can be constructed in accordance.
Fig. 2 is the perspective view that can be used to make the perforated die of this preform.
Fig. 3 is the perspective view of the interior preform of the housing of insertion automotive muffler.
The specific embodiment
Compare with the preform that becomes known for muffler, preform of the present invention is with the adhesive manufacturing that can solidify at low temperatures within a short period of time.This can reduce significantly makes the needed fund of preform and cost of energy and circulation timei.
This preform can be used to make the muffler of any kind.As everyone knows, muffler is parts or the device that plays the effect of acoustic energy (sound) damping or decay.They often comprise shell or outer cover and the preform that is installed in this housing/cover body.A muffler part of making big system or device commonly used.Some systems or the device that can comprise muffler are automobile exhaust system, diesel oil and gas engine, compressor, gases at high pressure delivery system, air blast, vavuum pump, ventilation/exhaust apparatus and gas turbine.
Used " low-temperature setting adhesive " among this paper means in room temperature or near the adhesive that can solidify (sclerosis forms stable material) under the room temperature basically fully.For example, solidification temperature can be smaller or equal to about 50 ℃, typically in about 17 ℃～about 35 ℃ scope.
This adhesive can solidify in the time of relative short-term, for example smaller or equal to about 30 minutes time.For example, hardening time can be smaller or equal to about 20 minutes, smaller or equal to about 15 minutes, perhaps in about 1～about 10 minutes scope.
This adhesive can solidify at low temperatures under the non-adhesive material adhesive not being used, and this non-adhesive material does not become the part of final adhesive.For example, such as hereinafter discussion, the adhesive that comprises the mixture of resin and curing accelerator is one embodiment of the invention.But, adhesive is not used the gas curing accelerator for example under the carbon dioxide this adhesive can solidify at low temperatures.
Under air that this adhesive is not applied hot for example heating or electromagnetic radiation, can carry out this curing.But under some situations, the electromagnetic radiation that can apply heat or certain type is further to accelerate the curing process.
Can use any suitable low-temperature setting adhesive or the mixture of different adhesives in the present invention.Adhesive can comprise a kind of material or multiple material.For example, adhesive can comprise low temperature curing resin.In one embodiment, adhesive comprises the resin that makes up with for example activator, catalyst or the curing of material that promotes resin solidification/curing agent.When with mixed with resin, curing accelerator can be liquid, emulsion or granular solids, and it becomes the part of the adhesive of final curing on the fiber of preform.Use liquid curing promoter in one embodiment.Can apply resin and curing accelerator respectively avoiding making resin solidification before forming preform in that fiber is bonded together to fiber, but they can apply together also.
In adhesive, can use the mixture of any appropriate resin or different resins.The non-limiting instance of some appropriate resin comprise can with the alkaline resin modified phenol resin of ester curing agent combination, can with the epoxides of ammonia curing agent combination, can with melamine, polyurethane, furans and the urea aldehyde of acid as curing agent combination.
Some object lessons of alkalescence resin modified phenol resin are by Hexion SpecialtyChemicals; Columbus,
resin series that Ohio (being Borden Chemical in the past) makes.For example, ALPHASET 9010,9020,9030 and 9040 resins can be suitable for this adhesive.This serial different resins has difference in nature slightly at their viscosity, solids content and other.The alkalescence that
resin mainly obtains them from the NaOH that adds or potassium hydroxide.At United States Patent(USP) No. 4; 424; 467 with second edition numbers 32,812 in
resin is disclosed.Hexion also be suitable for use in the manufacture of adhesives?
(alkaline modified phenolic resin), and?
(phenolic urethane) resin series.
The ratio of resin and curing accelerator depends on concrete composition and process conditions in the adhesive.For example, the various combination of resin and curing accelerator can produce the different solidification rates that are suitable for different method of application and forming technique.In some embodiments, when resin is alkalescent phenol resin and activator when being ester, this resin and this ester can use with the ratio in the scope of about 2: 1～about 10: 1 or about 3: 1～about 5: 1.
The amount of the adhesive that fiber is applied also depends on concrete composition and process conditions.To be used for enough that fiber with final preform is bonded together and to provide the amount of enough mechanical integrity to apply adhesive to preform.Preform its use subsequently during keep its shape, for example in the silencer assembly operation, be inserted in the suppressor case during.On all fibers, can apply this adhesive or main surface application relatively equably to preform.In some embodiments, apply adhesive with the amount in about 1%～about 30%, about 1%～about 20%, about 2%～about 10% or about scope of 2%～about 5% of final preform weight.
In the application that they is exposed to relatively-high temperature, often make and/or use silencer preform.For workman and user's security, adhesive can be nontoxic basically so that when the temperature that preform is heated to 250 ℃, for example in the silencer on being installed to vehicle, adhesive is emitted the toxic gas that allows exposure limit smaller or equal to OSHA.
But but the fiber that any suitable fibration material or different fibration mixtures of material can be used to make preform.For example, for example the composition and the method for the mixture of glass fibre or basalt fibre, polymer fiber, carbon fiber, pitch fibers and these fibers are known in the prior art to be used to make mineral fibres.Fiber can bear preform is inserted heat, machinery and the electrochemical conditions that exists in the sound attenuating equipment wherein.
This fiber can have any suitable form, for example continuous fibers, be cut into several centimetres or length fiber, or have less than the staple fiber of 4 centimetre lengths usually and/or have those that the fiber of several centimetre lengths for example prepares in mineral wool or AF glass wool technology.Can form device at fiber and for example prepare this fiber by the decay fiber forming material in spinning machine, mouthful mould (bushing) or the orifice plate, although also can make them through any other suitable method.During the fiber production process, can be with comprising the for example size composition coated fiber silk of lubricant, coupling agent and film forming polymer of functional reagent.Through utilizing shredding machine or similar devices well known in the prior art the fiber that fibre bundle is cut into discontinuous length is made the short fiber of cutting or cutting off.Fiber through the manufacturing of carded technology also can apply with certain type of sizing agent, and is utilized in the low-temperature setting adhesive that uses in the preform subsequently and applies.The fiber that uses in the preform can carry out Texturized through any suitable method, to increase their sound attenuating/damping capacity, although also can use the fiber of non-texturized.
Can apply adhesive to fiber with any suitable method.Can before or after supplying to fiber in the mould, apply adhesive.For example, can during fiber crimp distortion or cut-out technology, apply.Can for example spray in any suitable manner, brushing, dip-coating or the coating of curtain formula apply adhesive.For example, a kind of mode be when fiber crimp is out of shape or after soon, with droplet form respectively but simultaneously spraying liquid resin and liquid curing-agent on fiber.
Having the adhesive of relative viscosity higher or the part of this adhesive possibly encounter difficulties during fiber is applied adhesive.For example, the resin with relative viscosity higher possibly be difficult to spraying, and this will cause sprayer to replace the dispersion mist that can on all fibres, apply equably relatively and produce the adhesive thread.Therefore, in some embodiments of the present invention, use pressurization to apply the equipment paint finishing of for example pressurizeing and apply part adhesive at least for fiber.
Perhaps, except using pressurized equipment, can add viscosity modifier to help that it is applied over fiber to part adhesive at least.For example, can with viscosity reducers for example potassium hydroxide or other known materials add to sticking relatively resin to reduce its viscosity.
Adhesive often tends to and material adhesion when it solidifies.If this adhesive and die surface adhere to, will make preform be difficult to from mould, remove and/or promote the accumulation on the mould.Therefore, in some embodiments of the present invention, mould is applied releasing agent to prevent or to reduce these problems.Can use any suitable releasing agent, for example organosilicon or the material that contains
.
Can use any suitable mould and relevant device in the present invention.In some embodiments, with mould perforation, especially when using before compressed air that fiber is carried out when Texturized fiber being supplied with in the mould and/or fiber is applied adhesive.United States Patent(USP) No. 5,766,541 have put down in writing perforated die and the relevant apparatus that is used to make fibre preforms, it are drawn to be reference in this article.Another perforated die hereinafter is described and is shown among Fig. 2.But puncherless in some embodiments of the present invention mould also is fit to.
When preform is removed, this preform is formed the structure that comprises as the part of muffler from mould.In some embodiments; This preform is carried out size, the feasible inner chamber of filling muffler shell or cover body basically of shaped design; The housing of silencer for example is for example blast pipe, baffle plate or perforated pipe slot milling of any connected components equipment of linking to each other with silencer simultaneously.Perhaps, can use a plurality of preforms to fill the inner chamber of muffler.Can carry out the size and dimension design to be fit to any part of muffler to these preforms.
Referring now to accompanying drawing, Fig. 1 representes the preform 10 that ability is constructed in accordance.This preform comprises the fiber 10a that is bonded together through adhesive 10b.Size and dimension to this preform designs to fill the inner chamber of suppressor case basically.Preform has three holes 12,14 and 16, and these holes extend through preform so that the pipe that links to each other with silencer passes through this preform.
Fig. 2 illustrates mould 18, and it can be used for making this preform 10.This mould comprises rectangular solid bottom end 20.Three cylindrical tubes 22,24 and 26 link to each other with the bottom of mould, and are vertically extended by this bottom.In the embodiment that illustrates, manage to hollow and have the cylindrical surface and the solid top ends of perforation.The pipe of mould is corresponding to the hole of preform.
Mould also comprises shell 28.In the embodiment that illustrates, shell comprises the first and second half housing 28a and 28b of perforation.Half housing can be around hinge 30 rotations at housing one end, with the folding shell body.Shell body is included in the anchor clamps 32,33 and 34 half housings with secure closure of the housing other end.The inside of closed shell body defines the cavity with the general size and dimension of suppressor case inner chamber.
This mould also comprises rectangular solid top 36.The top 36 of mould has three holes 38,40 and 42 so that the hole is passed on the top of pipe 22,24 and 26 when the top is installed on the mould.This top comprises the flanging rod 44 and 46 of latch housing end in its end, to help the location of top on mould.Can this top 36 be designed to be installed in mould housing 28 inside so that the sound-absorbing material in the mould can be compressed to the assigned altitute by the decision of thin slice (not shown) in mould housing inside.
This mould can be processed by various materials, because it needn't be heated near the room temperature for adhesive to be solidified more than.By (for example to the material that has a tolerance with the bonding adhesive of mould;
) process mould, can be more efficiently with preform from mould removal.In addition, part of mould (for example pipe) or entire die can be processed by elastomeric material, and it makes the size and dimension of mould to become and is easy to preform is removed.
Owens Corning sells
machine, is used for as the one of which silencer or preform mould or capsule bag are filled Texturized glass fiber material.Such machine uses and contains several thousand filamentary glass fiber bundles as input material.This fibre bundle is through introducing nozzle wherein with compressed air.This compressed air is as separately consequently they will weaken acoustic energy more efficiently with monofilament.In addition, compressed air helps to shift out Texturized fibre bundle and get into the container of any type that will fill from nozzle.In the present invention; Can adhesive be offered nozzle so that after material is Texturized, can two kinds of flow of liquid be introduced in the nozzles, perhaps after Texturized material leaves nozzle, immediately Texturized material applied adhesive and when this fibre bundle gets into mould or before Texturized fibre bundle is applied.The available adhesive of this Texturized fibre bundle guarantee evenly to fill mould and do not have the mode of negative effect will be coated with to(for) the Texturized quality of restrainting imports in mould.After introducing Texturized material in the mould, can reduce one or more sizes of mould, can be easy to be installed in the suitable dimension in the muffler so that preform has.
Fig. 3 illustrates the preform 10 in the housing 48 that inserts automotive muffler 50.Can find out that preform is filled the inner chamber of suppressor case basically, but not be to be necessary like this.
It will be appreciated by those skilled in the art that the present invention is not limited to concrete grammar illustrated in the literary composition and composition, and can carry out variation defined in the appended claims not breaking away under the scope of the invention.
Claims (19)
1. but formed the method for silencer preform by the fiber of fibration material, it may further comprise the steps:
This fiber is supplied in the mould;
Before or after supplying to this fiber in the mould, this fiber is applied resin; Respectively and side by side said fiber is applied curing accelerator; Wherein said resin and said curing accelerator constitute low-temperature setting adhesive together, and wherein apply this curing accelerator this adhesive is solidified under smaller or equal to 35 ℃ temperature;
This fiber is bonded together and forms the preform that roughly has mold shape; With
This preform is removed from mould, and this preform has the structure of inserting in the muffler, and wherein this is solidificated in smaller or equal to accomplishing in 20 minutes time.
2. the process of claim 1 wherein and under the situation that this adhesive is not applied heat, carry out this curing.
3. the method for claim 1 applies this adhesive with the amount in 1%～20% scope of final preform weight.
4. the process of claim 1 wherein that this adhesive is nontoxic basically, so that when the temperature of heating this preform to 250 ℃, this adhesive is emitted the toxic gas smaller or equal to OSHA permission exposure limit.
5. the process of claim 1 wherein that this curing accelerator is a liquid.
6. the process of claim 1 wherein that this resin comprises alkaline resin modified phenol resin.
7. the process of claim 1 wherein that using pressurization to apply equipment applies this adhesive of part at least to this fiber.
8. the method for claim 1 is included in this fiber is applied the additional step that resin is added into viscosity modifier this resin before.
9. the process of claim 1 wherein that this mould bores a hole.
10. the process of claim 1 wherein this mould part or all process by elastomeric material.
11. the method for claim 1 is included in and in mould, supplies with fiber applies releasing agent before to this mould additional step.
12. the process of claim 1 wherein that but this fibration material comprises glass.
13. the process of claim 1 wherein that this fiber is Texturized.
14. the process of claim 1 wherein that this muffler is the parts of automobile exhaust system.
But 15. forming the method for automobile exhaust preform by the fiber of fibration material, it may further comprise the steps:
This fiber is supplied in the mould;
Before or after supplying to this fiber in the mould, this fiber is applied resin; Respectively and side by side said fiber is applied curing accelerator; Said curing accelerator is emulsion or granular solids during with said mixed with resin; Wherein this resin and curing accelerator constitute low-temperature setting adhesive together, and wherein apply said curing accelerator and make this adhesive solidify the time smaller or equal to 20 minutes under smaller or equal to 50 ℃ temperature, and this adhesive is not applied heat; So that this fiber is bonded together, form the preform that roughly has mold shape thus; With
This preform is removed from mould, and this preform has the structure of inserting in the automobile exhaust parts.
16. silencer preform comprises:
But the fiber of fibration material, said fiber is for cutting off or the short fiber of cutting; With
This fiber is bonded together to form the low-temperature setting adhesive of this preform;
This preform has the structure of inserting in the muffler.
17. the method for claim 15, wherein these automobile exhaust parts are silencers.
18. the process of claim 1 wherein that said curing accelerator has the form of emulsion of being selected from and granular solids.
19. the silencer preform of claim 16; Also comprise curing accelerator; This curing accelerator has the form that is selected from liquid, emulsion and granular solids, and wherein said curing accelerator becomes the part of said low-temperature setting adhesive on the said fiber of said preform.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US11/638,945 | 2006-12-14 | ||
| US11/638,945 US20080142295A1 (en) | 2006-12-14 | 2006-12-14 | Binder for preforms in silencers |
| PCT/US2007/025595 WO2008076352A1 (en) | 2006-12-14 | 2007-12-14 | Binder for preforms in silencers |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101558193A CN101558193A (en) | 2009-10-14 |
| CN101558193B true CN101558193B (en) | 2012-01-11 |
Family
ID=39256570
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2007800463675A Expired - Fee Related CN101558193B (en) | 2006-12-14 | 2007-12-14 | Muffler perform and its forming method |
Country Status (8)
| Country | Link |
|---|---|
| US (1) | US20080142295A1 (en) |
| EP (1) | EP2102399A1 (en) |
| JP (1) | JP2010513774A (en) |
| KR (1) | KR20090088394A (en) |
| CN (1) | CN101558193B (en) |
| BR (1) | BRPI0720229A2 (en) |
| MX (1) | MX2009006271A (en) |
| WO (1) | WO2008076352A1 (en) |
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| US7942237B2 (en) * | 2006-04-12 | 2011-05-17 | Ocv Intellectual Capital, Llc | Long fiber thermoplastic composite muffler system with integrated reflective chamber |
| US7934580B2 (en) | 2006-04-12 | 2011-05-03 | Ocv Intellectual Capital, Llc | Long fiber thermoplastic composite muffler system |
| US7730996B2 (en) * | 2006-04-12 | 2010-06-08 | Ocv Intellectual Capital, Llc | Long fiber thermoplastic composite muffler system with integrated crash management |
| US8336673B2 (en) * | 2010-07-07 | 2012-12-25 | Bay Industries Inc. | Muffler, muffler insert, and methods and apparatus for making |
| ES2543636T3 (en) * | 2011-03-10 | 2015-08-20 | Ocv Intellectual Capital, Llc | Apparatus and method for producing a fibrous product |
| WO2014062943A1 (en) * | 2012-10-17 | 2014-04-24 | Ocv Intellectual Capital, Llc | Low-emission binder for muffler preform |
| KR20160014320A (en) | 2014-07-29 | 2016-02-11 | 주식회사 한국몰드 | Manufacturing method of preform having hood shape for automobile |
| DE102014226266A1 (en) * | 2014-12-17 | 2016-06-23 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Insulating and filtering material and its use as an inert sound-absorbing material |
| US9938872B2 (en) | 2015-06-09 | 2018-04-10 | Bay Fabrication, Inc. | Muffler insert, and systems, methods and apparatus for making |
| KR20170024464A (en) | 2015-08-25 | 2017-03-07 | ㈜한국몰드김제 | Forming Apparatus with Fixing Portion |
| DE202016008289U1 (en) * | 2016-05-12 | 2017-06-30 | Dbw Holding Gmbh | Molded part of fiberglass and / or mineral fiber material and manufacturing unit for this |
| KR101928841B1 (en) | 2017-07-17 | 2018-12-13 | 장태호 | Sound absorbing material winding device of car muffler and winding method using the same |
| JP6781479B2 (en) * | 2018-12-05 | 2020-11-04 | 株式会社クレファクト | Manufacturing method of glass fiber sound deadening material |
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| EP0692616B1 (en) * | 1994-07-15 | 1998-09-16 | Owens-Corning Sweden Aktiebolag | Preformed sound-absorbing material for engine exhaust muffler |
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2007
- 2007-12-14 EP EP07867753A patent/EP2102399A1/en not_active Withdrawn
- 2007-12-14 WO PCT/US2007/025595 patent/WO2008076352A1/en active Application Filing
- 2007-12-14 JP JP2009541391A patent/JP2010513774A/en active Pending
- 2007-12-14 BR BRPI0720229-6A2A patent/BRPI0720229A2/en not_active IP Right Cessation
- 2007-12-14 CN CN2007800463675A patent/CN101558193B/en not_active Expired - Fee Related
- 2007-12-14 KR KR1020097011761A patent/KR20090088394A/en not_active Application Discontinuation
- 2007-12-14 MX MX2009006271A patent/MX2009006271A/en active IP Right Grant
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Also Published As
| Publication number | Publication date |
|---|---|
| MX2009006271A (en) | 2009-06-22 |
| EP2102399A1 (en) | 2009-09-23 |
| JP2010513774A (en) | 2010-04-30 |
| BRPI0720229A2 (en) | 2013-12-24 |
| KR20090088394A (en) | 2009-08-19 |
| US20080142295A1 (en) | 2008-06-19 |
| CN101558193A (en) | 2009-10-14 |
| WO2008076352A1 (en) | 2008-06-26 |
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