CN102966410A - Muffler for an exhaust system of vehicle - Google Patents
Muffler for an exhaust system of vehicle Download PDFInfo
- Publication number
- CN102966410A CN102966410A CN2011103791133A CN201110379113A CN102966410A CN 102966410 A CN102966410 A CN 102966410A CN 2011103791133 A CN2011103791133 A CN 2011103791133A CN 201110379113 A CN201110379113 A CN 201110379113A CN 102966410 A CN102966410 A CN 102966410A
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- Prior art keywords
- silencing apparatus
- insulating layer
- intermediate insulating
- housing
- exhaust
- 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.)
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Classifications
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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
- F01N13/00—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00
- F01N13/02—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00 having two or more separate silencers in series
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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
- F01N13/00—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00
- F01N13/14—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00 having thermal insulation
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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
- F01N1/08—Silencing apparatus characterised by method of silencing by reducing exhaust energy by throttling or whirling
- F01N1/10—Silencing apparatus characterised by method of silencing by reducing exhaust energy by throttling or whirling in combination with sound-absorbing materials
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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
- F01N13/00—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00
- F01N13/14—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00 having thermal insulation
- F01N13/148—Multiple layers of insulating material
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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
- F01N13/00—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00
- F01N13/16—Selection of particular materials
Abstract
Disclosed is a muffler for an exhaust system of a vehicle, which improves fuel efficiency through weight reduction and reduces deterioration of peripheral components. To this end, the present provides a muffler for an exhaust system of a vehicle. More specifically, the muffler includes a triple-material hollow casing, in which an outer layer formed of a plastic material and disposed on the outermost surface of the muffler, an intermediate insulating layer disposed on the inside of the outer layer and containing an aerogel material, and an inner layer formed of a stainless steel material and disposed on the inside of the intermediate insulating layer are stacked.
Description
Technical field
The present invention relates to a kind of silencing apparatus for vehicle exhaust system.More particularly, the present invention relates to a kind of like this silencing apparatus of vehicle exhaust system, it can improve fuel efficiency by weight reduction, and reduces the deteriorated of peripheral assembly.
Background technique
Silencing apparatus as the part of the vent systems of the internal-combustion engine of motor vehicle or any motor, is installed along exhaust line usually.Silencing apparatus reduces exhaust sound by absorption techniques.Especially, engine exhaust is by way of a series of passage or chambers of typically arranging along coarse sand shape glass wool and/or be tuned to the resonator chamber that makes the wave reflection that interferes with each other or cancel each other and discharge.
The most traditional silencing apparatus is made by metallic material, thereby stands high-temperature exhaust air, reduces simultaneously the noise that produces during the engine combustion.More specifically, silencing apparatus is made by stainless steel material usually, thereby prevents or reduce Yin Gaowen and the caused erosion of wet environment.These traditional silencing apparatuss structurally have the inner space that is divided into a plurality of chambers by a plurality of spacers (baffle plate), thereby improve the decay of exhaust sound, so that exhaust sound can be when passing the chamber of silencing apparatus, utilize the interference of sound wave, the reduction of pressure surge and the reduction of exhaust gas temperature etc. and weaken gradually.
Yet traditional silencing apparatus is made by stainless steel.Stainless steel has high thermal conductivity, thereby the high temperature of waste gas is passed to assembly (such as bottom car body, fuel tank etc.) around the silencing apparatus via convection current, radiation or conduction, thereby makes peripheral components deteriorated.In addition, although use stainless steel material, promote material to cause outside the erosion yet also usually corrode because of high-temp waste gas and such as the outsides such as salt solution that winter, employed deicer salts produced.In addition, condensed water can cause the perforation erosion, and it can cause the loss of silencing apparatus attenuation function, thereby abrogates the bad silencing apparatus of effect.
Therefore, in order to solve the problems referred to above of conventional muffler, people have proposed a kind of plastics silencing apparatus (referring to Fig. 3) that uses plastic casing 1.Yet the plastics silencing apparatus absorbs sound by the glass fibre as insulation and sound-absorbing material use.The silencing apparatus of these types is effective for reducing high-frequency noise, and invalid for low-frequency noise.Especially, with the vibration frequency (Hz) of motor and tuning being limited of noise of motor rpm (rpm).And, must use a large amount of expensive glass fibres as insulation and sound-absorbing material.In addition, glass fibre can cause, environmental pollution deteriorated such as assemble ability, be difficult to the variety of issues such as mass production.In addition, the plastics silencing apparatus has such structure, and namely wherein waste gas directly contacts with plastic casing, and therefore plastic casing may melt in the vehicle operating process.
Only in order to improve the understanding to background of the present invention, and therefore can comprise the information that does not consist of national prior art known to persons of ordinary skill in the art in the disclosed above-mentioned information of background technique part.
Summary of the invention
The invention provides the tunable silencing apparatus of a kind of noise for vehicle exhaust system, it can prevent the deteriorated of the peripheral assembly that causes because of high-temp waste gas, prevents that corroding the function that causes because of the outside reduces, and improves fuel efficiency by weight reduction.
On the one hand, the invention provides a kind of silencing apparatus for vehicle exhaust system, this silencing apparatus comprises three heavy material hollow casings, wherein stacking have by plastic materials form and be arranged in skin on the silencing apparatus outermost surfaces, be arranged in outer inboard and comprise the intermediate insulating layer of aerogel material, and form and be disposed in the internal layer of the inboard of intermediate insulating layer by stainless steel material.
In certain embodiments, intermediate insulating layer can be made by the non woven fibre that is impregnated with aerogel.In addition, intermediate insulating layer can have according to the temperature of waste gas the thickness of 1-20mm.
In certain embodiments, skin can comprise the mixture of plastic materials and reinforcement material.More specifically, this mixture can comprise the plastic materials of 30-95wt% and the reinforcement material of 5-70wt%.In addition, reinforcement material can have and is at least 30 slenderness ratio.
In preferred embodiment, housing can comprise the first and second baffle plates, is used for the inner space is divided into the first to the 3rd chamber; Exhaust input tube from the front portion of housing, and by the support of the first and second baffle plates, passes the first and second chambers, and extends to the 3rd chamber; And exhaust output tube, it is supported by second baffle, passes the second and the 3rd chamber, and leads to the rear portion of housing.
Hereinafter other aspects of the present invention and preferred embodiment will be discussed.
Description of drawings
Describe its above-mentioned and other features in detail referring now to graphic some exemplary embodiment of the present invention in the accompanying drawing, hereinafter only for diagram provides accompanying drawing, and thereby do not limit the present invention, and wherein:
Fig. 1 illustrates the figure that is arranged on the typical silencing apparatus in the vehicle exhaust pipeline;
Fig. 2 illustrates the cross-sectional view that is used for according to the preferred embodiment of the invention the silencing apparatus of vehicle exhaust system;
Fig. 3 is the cross-sectional view that the conventional muffler that is used for vehicle exhaust system with plastic casing is shown;
The reference character that relates in the accompanying drawing comprises the parts that following back will further be discussed:
10: housing
11: skin
12: intermediate insulating layer
13: internal layer
15: exhaust input tube
17: exhaust output tube
21: the first chambers
22: the second chambers
23: the three chambers
31: the first baffle plates
32: second baffle
34: perforation
Should be understood that accompanying drawing needn't be drawn in proportion, but present the reduced representation of the various preferred features of explanation basic principle of the present invention.Specific design feature of the present invention disclosed herein comprises for example specific dimensions, direction, position and shape, and these features will partly be determined by application-specific and the Environmental Conditions of expection.
In the accompanying drawings, in several whole figure, reference character refers to identical or equivalent elements of the present invention all the time.
Embodiment
Below in detail with reference to various mode of executions of the present invention, embodiments of the invention are in the accompanying drawings by diagram and be described below., yet be understandable that this description and being not intended to limits the invention on those example embodiment although the present invention is described in connection with example embodiment.On the contrary, the invention is intended to not only cover example embodiment, and cover various optional forms, modification, the equivalent form of value and other embodiment, it can be comprised in the spirit and scope of the present invention that limited by claims.
Be understandable that, term used herein " vehicle " or " vehicle " or other similar term comprise motor vehicle generally speaking, such as comprising sport vehicle (SUV), bus, lorry, the passenger vehicle of various commerial vehicles, the ship that comprises various steamers and naval vessel, aircraft etc., and comprise motor vehicle driven by mixed power, electric vehicle, mixed power electric car, hydrogen car and other alternative fuel vehicle (fuel of for example, from the resource except oil, obtaining).As quoting in this article, motor vehicle driven by mixed power is the vehicle with two or more power resources, for example petrol power vehicle and electric-powered vehicle the two.
The invention provides a kind of silencing apparatus for vehicle exhaust system, this silencing apparatus is arranged in the exhaust line, it is characterized in that three heavy material suppressor cases and noise tuning structure, this silencing apparatus can improve fuel efficiency by weight reduction, and reduces the deteriorated of peripheral assembly.
With reference to figure 2, the silencing apparatus that is used for according to an exemplary embodiment of the present invention vehicle exhaust system comprises the hollow casing 10 of three heavy material, and its ectomesoderm 11, intermediate insulating layer 12 and internal layer 13 are stacked and form triple material housings.More specifically, outer 11 are formed by plastic materials, and are disposed on the outermost surfaces of silencing apparatus.Intermediate insulating layer 12 is arranged in outer 11 inboard, and consists of (or comprising aerogel) by aerogel.Internal layer 13 is formed and is disposed in the inboard of intermediate insulating layer 12 by stainless steel material.In addition, at internal layer 13 expansion identical with conventional muffler/resonance type noise tuning structure is set.
In more detail, outer 11 utilize heat-resisting thermosetting property or thermoplastic material to form roughly box-like, with the erosion that prevents from promoting that because corroding material and high-temp waste gas cause, and by reduce the weight of silencing apparatus with plastic materials.Outer 11 can be made by polypropylene, polyethylene, polyamide, polyphenylene sulfide, polybutylene-terephthalate etc., but are not limited to form by common molding and forming or moulded section.Can not use and can be used for outer 11 material because of thickness and the deteriorated any material conduct of insulation temperature of intermediate insulating layer 12.
Preferably, outer 11 can comprise reinforcement material, to obtain the reducing noise performance and to improve assembly hardness.Particularly, outer 11 can comprise the mixture of plastic materials and reinforcement material, and preferably, can comprise the plastic materials of 30-95wt% and the reinforcement material of 5-70wt%.
The example of reinforcement material can include, but are not limited to have the glass fibre that is at least 30 slenderness ratio (ratio of length to diameter), mineral fibre, biomass fiber, carbon fiber, nanoclay etc.In other words, the length of reinforcement material is 30 times of reinforcement material diameter at least, and reinforcement material can be by forming such as the various techniques such as common molding and forming, moulded section.
The content of reinforcement material can be according to the temperature of waste gas and is changed in above-mentioned scope.If the content of reinforcement material is less than 5wt%, the then heat resistance of material, intensity and lower hardness, thereby outer 11 be easy to fusing or decompose.Otherwise if this ratio surpasses 70wt%, then molding and forming ability or moulded section ability can reduce in manufacture process, and fragility increases, thereby outer 11 can be easy to fragmentation because housing is subject to external impact.
Equally, as shown in Figure 2, intermediate insulating layer 12 is formed box form roughly, being stacked on outer 11 the inwall, and can have according to the temperature of waste gas the thickness of 1-20mm.Intermediate insulating layer 12 can be formed by the non woven fibre of the aerogel that is impregnated with nano-scale, thereby improves sound absorption and insulating property.
Usually, aerogel is to have bigger serface, highly porous and low-density material, and prepare by colloidal sol and the wet gel body that obtains of the mutual conversion reaction of gel of drying under super critical condition, in this super critical condition, there is not liquid-vapor interface, in order to keep the porous structure of wet gel body constant.The superfine fibre that will be approximately human hair's 1/10,000 thickness is intertwined in aerogel, thereby remains with the air of about 90-99.8% in superfine fibre.The result is that this aerogel has than the high about 40 times insulation effect of glass fibre, and has the thermal conductivity than low 2 times of polymeric foam.
In this embodiment of the present invention, be about in this way the aerosil of non woven fibre dipping nano-scale, then under the supercritical carbon dioxide condition, the non woven fibre that has obtained is carried out drying and prepare intermediate insulating layer 12.Therefore, intermediate insulating layer 12 comprises the non woven fibre that is impregnated with (or comprising) aerogel.
Therefore, by plastic materials, be impregnated with the non woven fibre of aerogel, and triple material housings 10 that stainless steel material forms comprise the first and second baffle plates 31 and 32, are used for the inner space is divided into the first to the 3rd chamber 21 to 23; Exhaust input tube 15 from the front portion of housing 10, is supported by the first and second baffle plates 31 and 32, passes the first and second chambers 21 and 22, and extends to the 3rd chamber 23; And exhaust output tube 17, supported by second baffle 32, pass the second and the 3rd chamber 22 and 23, and lead to the rear portion of housing 10.
In addition, on second baffle 32 or at the first and second baffle plates 31 and 32, be formed with at least one perforation 34, thereby promote to be introduced in flow (the flowing from exhaust input tube to exhaust output tube) of the waste gas in the housing 10, and improve the reducing noise effect.
Particularly, the first and second baffle plates 31 and 32 are spaced apart from each other in the inner space of housing 10, and the inner space of housing 10 is divided into the first to the 3rd chamber 21 to 23 from front to back.Exhaust input tube 15 is used for being injected into by the waste gas that waste line is discharged from motor the inner space of housing 10.Exhaust input tube 15 enters into the inner space of housing 10 from the front portion of housing 10, and its front end reaches the place ahead of housing 10.
Similarly, silencing apparatus according to the present invention has such structure, wherein the inner space is divided into several chambers 21,22 and 23 by a plurality of baffle plates 31 and 32, thereby weakening exhaust sound, thereby can when passing the chamber of silencing apparatus, weaken gradually exhaust sound by the interference of sound wave, the reduction of pressure surge, the reduction of delivery temperature etc.Above-mentioned noise tuning structure can be by arranging the first and second baffle plates 31 and 32 and effectively reduce the radiated noise that causes because of exhaust in the appropriate location of housing 10.
In addition, can by change size and/or the position of pipe 15 and 17, perhaps effectively reduce the radiated noise that is caused by exhaust by at least one condition in the position, quantity and/or the size that change perforation 34, thereby make the tuning the best of noise.In addition, except managing 15 and 17, the pipe that other also can be set passes chamber 21 to 23 so that waste gas is discontinuous, but is collected in arbitrary chamber in the chamber 21 to 23, thereby sound wave is eliminated, thereby reduces noise.Thereby, be arranged for effectively carrying out the chamber 21 to 23 of reducing noise and managing 15 and 17 quantity, rpm and Hz and do not limit for every type of motor, and waste gas needn't be along a direction continuous-flow.
In the preferred embodiment of the present invention, when in housing 10, adopting above-mentioned noise tuning structure, the intermediate insulating layer 12 that is formed by the non woven fibre that is impregnated with aerogel be arranged in the skin 11 that formed by plastic materials and the internal layer 13 that formed by stainless steel material between, be passed to the outside in order to prevent the high temperature on internal layer 13 surfaces that cause because of high-temp waste gas, thereby prevent from being arranged in the deteriorated of plastic outer layer 11 on the silencing apparatus outermost surfaces and peripheral assembly.Therefore, two-layer (corresponding to the internal layer of the present invention) of the existing silencing apparatus that can be formed by stainless steel material is reduced to individual layer, i.e. single centre/internal layer 13.Yet as required, housing also can be by two-layer formation at least.
In addition, in the present invention, the noise tuning structure that is arranged in the housing is not limited to above-mentioned noise tuning structure, and can diversely be become known noise tuning structure.
Utilize said structure, can significantly reduce the volume (or size) according to silencing apparatus of the present invention, and silencing apparatus according to the present invention can reduce low frequency radiation noise and high frequency radiation noise by existing expansion/resonance type noise tuning structure.Especially, it is tuning that it can all carry out noise to each frequency band and every kind of motor rpm (rpm), thereby it can reduce rumble hydrodynamic noise in noise (booming noise) and 600Hz or the higher high frequency band of low frequency.
Usually, compare with existing silencing apparatus, the noise that rumbles can be because of a little deterioration that reduces of muffler volume.Yet, in the present invention, by the housing 10 that uses three heavy material, can reduce the radiated noise of silencing apparatus, thereby total reducing noise performance is equal to or higher than the reducing noise performance of existing silencing apparatus.In addition, by using the intermediate insulating layer that is formed by the non woven fibre that is impregnated with aerogel as insulating material, silencing apparatus according to the present invention has the insulating property than three times of the insulating material such as the polyurethane foam that is widely used of same thickness or glass fibre.Thereby, the thickness of insulating material (being intermediate insulating layer) can be reduced to the about 1/3rd of original thickness, have simultaneously identical insulating property.Therefore, improve assembling capacity, and improve peripheral assembly degrees of freedom in design.
In addition, because the surface temperature of silencing apparatus can be up to 400 ℃ because of waste gas in vent systems, so the use of organic insulation is restricted, thereby is widely used such as inorganic insulating materials such as glass fibres most.Yet, in the present invention, can use be impregnated with have 600 ℃ or the stable on heating aerogel of higher temperature organic non woven fibre as insulating material, thereby can prevent insulating material (being intermediate insulating layer) fusing or deteriorated.In addition, utilize the resistance to heat of improving, can be subject to outside the erosion because its rust protection prevents housing 10.
As evidence further, silencing apparatus according to the present invention is carried out following evaluation test.
1. the evaluation of noiseproof feature
Use thermoplastic material PA6+GF35% (blending material of polyamide 6 and glass fibre) preparation to have prototype silencing apparatus (A) according to triple material housings of the present invention, and conventional muffler (B) the as a comparison product of preparation with Stainless Steel Shell.
With equal volume the prototype silencing apparatus (A) of preparation like this and the noiseproof feature of conventional muffler (B) are tested, thereby eliminated because the different caused noiseproof features of volume are different, and it is installed in the vehicle.The result is, in the scope of 3000-4000rpm, measure the radiated noise of prototype silencing apparatus (A) than the low 2-3dBA of radiated noise of conventional muffler (B), and in the high speed that the is higher than 3000rpm noise range of rumbling, record than the low 7-10dBC of conventional muffler (B), can find out that therefrom compare with conventional muffler, silencing apparatus according to the present invention has the noiseproof feature of improvement.
2. the evaluation of exhaust pressure
Measure according to the exhaust pressure resistance of the prototype silencing apparatus of triple material housings of the present invention having 17L, and itself and the conventional muffler with 21L Stainless Steel Shell are compared.The result is, can find out that the exhaust pressure resistance of conventional muffler is 35.8kPa, and according to the exhaust pressure resistance drop of prototype silencing apparatus of the present invention to 32.3kPa.If exhaust pressure reduces, then the output of motor increases, thereby improves fuel efficiency.
3. the evaluation of drainage performance
Evaluation is tested to drainage performance, to estimate the anti-erosion characteristic of silencing apparatus opposing condensed water of the present invention.After in the water with prearranging quatity is injected into according to the housing of prototype silencing apparatus of the present invention, five minutes residual water of measurement behind engine start.Quantity of residual is 0cc, can find out that therefrom the possibility of condensed water is very low.
4. the test of pipe joint serviceability
To the housing of prototype silencing apparatus according to the present invention and the joint between the exhaust input tube, and the joint between housing and the exhaust output tube applies after the vibration 300 seconds of 0.5-30Hz, the degree of deformation that measures is in 6%, it is 1/3rd of failure criterion, can find out that therefrom its serviceability is fabulous.
As mentioned above, the silencing apparatus for vehicle exhaust system according to the present invention comprises the housing of being made by heat resistant plastic material and the aerogel material with insulation characterisitic, thereby can reduce the weight and volume of silencing apparatus.Therefore, can improve fuel efficiency, assembling capacity and peripheral assembly degrees of freedom in design.In addition, silencing apparatus of the present invention prevents that peripheral assembly is deteriorated because of high-temp waste gas, prevent because the corrosional function in outside reduces, and can be tuning and effectively reduce low frequency radiation noise and high frequency radiation noise by effective noise.
The above is described in detail with reference to illustrative embodiments of the present invention.Yet, it will be understood by those skilled in the art that in the situation that does not depart from principle of the present invention and spirit can also make amendment to these mode of executions, scope of the present invention is limited in the appended claim and the equivalent form of value thereof.
Claims (14)
1. silencing apparatus that is used for vehicle exhaust system, described silencing apparatus comprises:
By the three heavy material hollow casings that three level stack layer at least consists of, wherein said at least three level stack layer comprises:
Skin is formed and is disposed in by plastic materials on the outermost surfaces of described silencing apparatus,
Intermediate insulating layer is arranged in described outer field inboard and comprises aerogel material, and
Internal layer is formed and is disposed in the inboard of described intermediate insulating layer by stainless steel material.
2. silencing apparatus according to claim 1, wherein said intermediate insulating layer comprises the non woven fibre that is impregnated with aerogel.
3. silencing apparatus according to claim 1, wherein said intermediate insulating layer has the thickness of 1-20mm according to the temperature of waste gas.
4. silencing apparatus according to claim 1, wherein said skin comprises the mixture of plastic materials and reinforcement material.
5. silencing apparatus according to claim 1, wherein said skin comprises the plastic materials of 30-95wt% and the reinforcement material of 5-70wt%.
6. silencing apparatus according to claim 5, wherein said reinforcement material have and are at least 30 slenderness ratio.
7. silencing apparatus according to claim 1, wherein said housing comprises:
The first and second baffle plates are divided into the first to the 3rd chamber with the inner space,
Exhaust input tube from the front portion of described housing, is supported by described the first and second baffle plates, and pass described the first and second chambers, and extend to described the 3rd chamber, and
Exhaust output tube is supported by described second baffle, passes the described second and the 3rd chamber, and leads to the rear portion of described housing.
8. vent systems that is used for vehicle comprises:
Exhaust line is configured to transport and remove the waste gas from motor; And
Silencing apparatus is arranged in the described exhaust line, and wherein said silencing apparatus comprises the housing that is made of three level stack layer at least, and described at least three level stack layer comprises:
First layer is formed and is disposed in by plastic materials on the outermost surfaces of described suppressor case,
Intermediate insulating layer is arranged in described outer field inboard and contains at least aerogel material, and
Internal layer is formed and is disposed in the inboard of described intermediate insulating layer by stainless steel material.
9. vent systems according to claim 8, wherein said intermediate insulating layer comprises the non woven fibre that is impregnated with aerogel.
10. vent systems according to claim 8, wherein said intermediate insulating layer has the thickness of 1-20mm according to the temperature of waste gas.
11. vent systems according to claim 8, wherein said skin comprises the mixture of plastic materials and reinforcement material.
12. vent systems according to claim 8, wherein said skin comprise the plastic materials of 30-95wt% and the reinforcement material of 5-70wt%.
13. having, vent systems according to claim 12, wherein said reinforcement material be at least 30 slenderness ratio.
14. vent systems according to claim 8, wherein said housing comprises:
The first and second baffle plates are divided into the first to the 3rd chamber with the inner space,
Exhaust input tube from the front portion of described housing, is supported by described the first and second baffle plates, and pass described the first and second chambers, and extend to described the 3rd chamber, and
Exhaust output tube is supported by described second baffle, passes the described second and the 3rd chamber, and leads to the rear portion of described housing.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR10-2011-0088536 | 2011-09-01 | ||
| KR1020110088536A KR101326511B1 (en) | 2011-09-01 | 2011-09-01 | Muffler for vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102966410A true CN102966410A (en) | 2013-03-13 |
Family
ID=47710592
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011103791133A Pending CN102966410A (en) | 2011-09-01 | 2011-11-24 | Muffler for an exhaust system of vehicle |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US20130056299A1 (en) |
| KR (1) | KR101326511B1 (en) |
| CN (1) | CN102966410A (en) |
| DE (1) | DE102011086989A1 (en) |
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| CN106427817A (en) * | 2016-11-25 | 2017-02-22 | 北汽福田汽车股份有限公司 | Sound-insulating cushion of automobile front wall |
| CN110067628A (en) * | 2019-05-29 | 2019-07-30 | 泰豪电源技术有限公司 | A kind of interior-type double thermal insulation exhaust silencer |
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| JP6153371B2 (en) * | 2013-04-15 | 2017-06-28 | ニチアス株式会社 | Muffler cutter |
| CN103352738A (en) * | 2013-07-25 | 2013-10-16 | 成都陵川特种工业有限责任公司 | Silencer |
| US9874125B2 (en) | 2013-10-10 | 2018-01-23 | Miratech Group, Llc | Quadruple-tuned silencer apparatus and method for attenuating sound from an engine exhaust |
| CN104153851A (en) * | 2014-07-29 | 2014-11-19 | 芜湖天金机械有限公司 | Small automotive silencer and compound corrosion prevention for surfaces thereof |
| KR101826545B1 (en) | 2015-07-31 | 2018-02-07 | 현대자동차 주식회사 | Exhaust system for vehicle |
| CN108266255B (en) * | 2018-03-22 | 2020-05-05 | 南京世界村汽车动力有限公司 | Automobile silencer |
| CN109372619A (en) * | 2018-09-06 | 2019-02-22 | 浙江仕善汽车科技股份有限公司 | A kind of car tail-gas filter that filter effect is good |
| WO2023284945A1 (en) * | 2021-07-13 | 2023-01-19 | Volvo Truck Corporation | A thermal insulating member for a vehicle component |
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| US5052513A (en) * | 1986-11-26 | 1991-10-01 | Showa Denko Kabushiki Kaisha | Noise reductive resin muffler for exhaust system in combustion engine |
| US20070238008A1 (en) * | 2004-08-24 | 2007-10-11 | Hogan Edward J | Aerogel-based vehicle thermal management systems and methods |
| CN101466928A (en) * | 2006-04-12 | 2009-06-24 | Ocv智识资本有限责任公司 | Long fiber thermoplastic composite muffler system with integrated crash management |
| CN102146826A (en) * | 2011-02-23 | 2011-08-10 | 重庆长安汽车股份有限公司 | Main silencer for air exhaust system of automotive engine |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR960002067U (en) * | 1994-06-23 | 1996-01-19 | Automotive Silencer | |
| KR19980032615U (en) * | 1996-12-04 | 1998-09-05 | 강경호 | Muffler noise suppression device |
| KR200457686Y1 (en) * | 2009-06-08 | 2011-12-29 | (주)태형 | Vehicle muffler |
-
2011
- 2011-09-01 KR KR1020110088536A patent/KR101326511B1/en active IP Right Grant
- 2011-11-10 US US13/293,365 patent/US20130056299A1/en not_active Abandoned
- 2011-11-23 DE DE102011086989A patent/DE102011086989A1/en not_active Withdrawn
- 2011-11-24 CN CN2011103791133A patent/CN102966410A/en active Pending
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|---|---|---|---|---|
| US4192401A (en) * | 1976-07-26 | 1980-03-11 | Tenneco Inc. | Complete louver flow muffler |
| US5052513A (en) * | 1986-11-26 | 1991-10-01 | Showa Denko Kabushiki Kaisha | Noise reductive resin muffler for exhaust system in combustion engine |
| US20070238008A1 (en) * | 2004-08-24 | 2007-10-11 | Hogan Edward J | Aerogel-based vehicle thermal management systems and methods |
| CN101466928A (en) * | 2006-04-12 | 2009-06-24 | Ocv智识资本有限责任公司 | Long fiber thermoplastic composite muffler system with integrated crash management |
| CN102146826A (en) * | 2011-02-23 | 2011-08-10 | 重庆长安汽车股份有限公司 | Main silencer for air exhaust system of automotive engine |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106427817A (en) * | 2016-11-25 | 2017-02-22 | 北汽福田汽车股份有限公司 | Sound-insulating cushion of automobile front wall |
| CN110067628A (en) * | 2019-05-29 | 2019-07-30 | 泰豪电源技术有限公司 | A kind of interior-type double thermal insulation exhaust silencer |
Also Published As
| Publication number | Publication date |
|---|---|
| DE102011086989A1 (en) | 2013-03-07 |
| US20130056299A1 (en) | 2013-03-07 |
| KR101326511B1 (en) | 2013-11-08 |
| KR20130025171A (en) | 2013-03-11 |
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Application publication date: 20130313 |