CN103104384B - Engine air inlet tube, engine aspirating system and automobile - Google Patents
Engine air inlet tube, engine aspirating system and automobile Download PDFInfo
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- CN103104384B CN103104384B CN201110355660.8A CN201110355660A CN103104384B CN 103104384 B CN103104384 B CN 103104384B CN 201110355660 A CN201110355660 A CN 201110355660A CN 103104384 B CN103104384 B CN 103104384B
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Abstract
Engine air inlet tube, wherein, this engine air inlet tube comprises outer tube (2) and interior pipe (4), between the tube wall of described outer tube (2) and the tube wall of described interior pipe (4), there is interval, the tube wall of described interior pipe (4) is formed with multiple inner perforated tube (5).In addition, the present invention also provides a kind of engine aspirating system and the automobile with described engine air inlet tube.Engine air inlet tube originality of the present invention adopts the double layer construction of the spaced outer tube of tool and interior pipe, effectively sound insulation function can be realized by the interval between outer tube and interior pipe, reduce the noise in engine air inlet tube significantly, improve the NVH performance of such as automobile, effectively improve the riding comfort of automobile.
Description
Technical field
The present invention relates to engine intake duct, particularly, relate to a kind of engine air inlet tube.In addition, the invention still further relates to a kind of engine aspirating system and the automobile that comprise this engine air inlet tube.
Background technique
Motor is widely used in various machinery, especially on automobile.Along with the raising that people in recent years require car comfort, NVH (i.e. noise, vibration, sound vibration roughness) has been classified as primary design and has considered key element by automobile engineer, and wherein reducing noise is crucial designing requirement.On other engineering mechanical device (such as excavator, bulldozer etc.), it is obviously also favourable for reducing noise.
Engine aspirating system noise is one of topmost noise source of automobile.The noise that engine aspirating system noise mainly produces in fingering gas port place and suction tude, this noise source is from the close together in compartment, very large on the formation impact of internal car noise.Wherein, when engine aspirating system air inlet, air flows through engine air inlet tube, because air flow velocity is very fast, can friction be there is between itself and suction tude tube wall, add the turbulent flow etc. of air stream itself, thus the noises such as vibration noise, frictional noise, radiated noise can be produced, these noises account for the larger specific gravity of engine aspirating system noise, have considerable influence to the riding comfort of automobile.Therefore, the noise reduced in suction tude can improve the travelling comfort of automobile significantly.
In addition, along with the develop rapidly of engine technology, engine power improves greatly, the heat produced also gets more and more, cabin temperature increases, air can heated to the engine air inlet tube of engine intake manifold from suction port, this certainly will cause intake temperature to improve, it means that the air density entering motor declines, air inflow is insufficient, thus can cause under certain driving cycle smoke evacuation increases, power drop, to cooling system heat dissipating capacity increase, engine temperature rising, have influence on the performances such as car load discharge, oil consumption, engine power.
Because the above-mentioned defect of prior art, need to design a kind of novel suction tude, to solve or to alleviate the above-mentioned defect of prior art suction tude.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of engine air inlet tube, and this engine air inlet tube can effectively be eliminated when air inlet or reduce noise.
The further technical problem to be solved of the present invention is to provide a kind of engine air inlet tube, and this engine air inlet tube not only can effectively reduce when air inlet or eliminate pneumatic noise, and can ensure that air inlet is abundant to a certain extent.
On this basis, technical problem to be solved by this invention is to provide a kind of engine aspirating system, and this engine aspirating system can reduce induction noise effectively.
In addition, the technical problem that the present invention also will solve is to provide a kind of automobile, and this automobile has significantly reduced internal car noise, thus has good riding comfort.
In order to solve the problems of the technologies described above, the invention provides a kind of engine air inlet tube, wherein, this engine air inlet tube comprises outer tube and interior pipe, between the tube wall of described outer tube and the tube wall of described interior pipe, there is interval, the tube wall of described interior pipe is formed with multiple inner perforated tube.
Preferably, described outer tube and/or interior pipe are formed by plastic materials or metallic material.
Preferably, porosity soundproof material is provided with in the interval between described outer tube and interior pipe.
Specifically selectively, described porosity soundproof material is sound insulation fiber, Sound-proof material, polyester sponge or polyethers sponge.
Further preferably, described porosity soundproof material being formed radially as multilayer along described engine air inlet tube, and every layer adopts different porosity soundproof materials.
More preferably, the outer surface of described outer tube is coated with reflect heat layer.
Specifically selectively, described reflect heat layer is aluminium foil layer, copper foil layer or tinfoil paper layer.
On the basis of the engine air inlet tube of technique scheme, the invention provides a kind of engine aspirating system, wherein, the engine air inlet tube of technique scheme of the present invention is installed between the suction port of this engine aspirating system and intake manifold.
In addition, the present invention also provides a kind of automobile, comprises motor, and wherein, described motor has the above-mentioned engine aspirating system of root.
Pass through technique scheme, engine air inlet tube of the present invention comprises the double layer construction of the spaced outer tube of tool and interior pipe, effectively sound insulation function can be realized by the interval between this outer tube and interior pipe, be formed with multiple inner perforated tube on inner pipe simultaneously, jointly silencing apparatus is formed by the interval between this inner perforated tube and inner and outer pipe, thus more effectively insulate against sound, eliminate the noise, reduce the noise in engine air inlet tube significantly.Under further optimal way, in motor of the present invention, porous soundproof material is provided with in interval between outer tube, thus make the noise reduction of described engine air inlet tube more excellent, in addition, the outer surface of described outer tube arranges reflect heat layer, by this reflect heat layer and in, clearance space between outer tube and porosity soundproof material, engine air inlet tube of the present invention not only can reduce induction noise effectively, and the heat that can reduce or isolate in engine nacelle is passed to the airflow in suction tude, this is for the NVH performance of such as automobile, discharge, oil consumption, engine efficiency raising all has positive role, and significantly improve the riding comfort of automobile.
Other features and advantages of the present invention are described in detail in embodiment part subsequently.
Accompanying drawing explanation
Following accompanying drawing is used to provide a further understanding of the present invention, and forms a part for specification, and itself and following embodiment one are used from explanation the present invention, but protection scope of the present invention is not limited to following the drawings and the specific embodiments.In the accompanying drawings:
Fig. 1 is the sectional structure schematic diagram of the engine air inlet tube of the specific embodiment of the invention.
Description of reference numerals:
1 reflect heat layer; 2 outer tubes;
3 porosity soundproof materials; Pipe in 4;
5 inner perforated tubes.
Embodiment
Be described in detail to the specific embodiment of the present invention below in conjunction with accompanying drawing, should be understood that, embodiment described herein is only for instruction and explanation of the present invention, and protection scope of the present invention is not limited to following embodiment.
Shown in Figure 1, engine air inlet tube of the present invention comprises outer tube 2 and interior pipe 4, has interval between the tube wall of its middle external tube 1 and the tube wall of interior pipe 4, and the tube wall of interior pipe 4 can be formed with multiple inner perforated tube 5.
In technique scheme, described outer tube 2 and interior pipe 4 can independently be processed separately, then mutual sheathing being fixed together by corresponding fastening piece.Certainly, processing mode can have multiple, and it is not limited to aforesaid way.Wherein, outer tube 2 can be plastic materials, metallic material or other material be applicable to, and its two ends are used for the forward and backward pipeline assembly connection with engine aspirating system.Interior pipe 4 also can be plastic materials, metallic material or other material be applicable to, for passing through air draught in interior pipe 4.When outer tube 2 and interior pipe 4 adopt plastic materials, because plastic materials has good sound-insulating and heat-insulating effect, therefore, it is possible to make the anti-acoustic capability of engine air inlet tube of the present invention more excellent.
Between the outer tube 2 of the engine air inlet tube of technique scheme and interior pipe 4, there is interval, namely cavity is formed with between outer tube 2 and interior pipe 4, this cavity internally can play the effect of effective isolation by the interior induction noise produced of pipe 4, and this cavity also serves certain blocking effect to the transmission of temperature in addition.
Further, under aforesaid way, described interior pipe 4 is formed with multiple inner perforated tube 5, this inner perforated tube 5 coordinates with above-mentioned cavity and forms silencing apparatus, thus effectively realizes the function of noise elimination noise reduction.Annotatedly be, coordinating with described cavity with regard to above-mentioned inner perforated tube 5 is formed with regard to silencing apparatus, the diameter of its noise elimination function that can realize and inner perforated tube 5 and to form area relevant, apparently, if the diameter of inner perforated tube 5 is less and the gross area is less, the silencing apparatus that above-mentioned inner perforated tube 5 and cavity are formed is equivalent to a well known Helmholz resonance formula silencing apparatus, and multiple inner perforated tube 5 is the connecting tube in Helmholz resonance formula silencing apparatus.If the diameter of inner perforated tube 5 is comparatively large, its function is equivalent to an expansion muffler.
Preferably, porosity soundproof material 3 is provided with in the interval between described outer tube 2 and interior pipe 4.Under this optimal way, by arranging porosity soundproof material 3 in the interval between outer tube 2 and interior pipe 4, soundproof effect can be strengthened better, and because the soundproof material 3 arranged has porosity, therefore the noise elimination function of the silencing apparatus that above-mentioned inner perforated tube 5 is formed with cavity is not affected, on the contrary, because it can sound-absorbing thus enhance soundproof effect.Specifically selectively, this porosity soundproof material can be sound insulation fiber, Sound-proof material, polyester sponge and polyethers sponge etc.In addition, apparently, this porosity soundproof material also can play certain heat-blocking action.Such as, with regard to above-mentioned sound insulation fiber, the acoustical absorbance properties that it has lightweight, heat-resisting, thermal capacity is little, thermal conductivity is low and good.
Described porosity soundproof material 3 in substance form dissipative muffler, dissipative muffler dominant absorption high frequency and the wider noise of frequency band, its principle be air-flow by porous medium, sound is roundtrip between hole, produce power loss, to reach the object of noise elimination.Dissipative muffler high frequency is eliminated the noise and is depended on properties of materials, as the density etc. of the hole diameter in the structure of material, material and material.In concrete enforcement, according to the frequency range of the noise that will eliminate, can select the porosity soundproof material with proper characteristics, such as sound insulation fiber material, to reach the object of noise elimination, and sound insulation fiber has good heat-shielding performance performance equally.
In addition, according to the difference required of eliminating the noise, described porosity soundproof material can be formed radially as multilayer along described engine air inlet tube, every layer adopts different porosity soundproof materials, thus pass through the characteristic of the porosity soundproof material of different layers, realize the frequency of different noise eliminations and the effect of noise elimination.
Because in engine compartment, temperature is higher, the circulation way of the heat that engine operation produces is mainly by radiation mode and air dielectric circulation way, wherein, for the heat propagated by air dielectric, engine air inlet tube of the present invention can play effective iris action by means of the interval between outer tube 2 and interior pipe 4 and the porosity soundproof material being preferably arranged on this interval.In order to prevent the heat propagated by radiation mode from making the air stream in engine air inlet tube be heated inadequately, preferably, the outer surface of described outer tube 2 is coated with reflect heat layer 1, thus effectively plays the reflecting action to radiations heat energy.
Reflect heat layer 1 can have multiple, such as aluminium foil layer, copper foil layer, tinfoil paper layer etc., and such as, with regard to aluminium foil, aluminium foil has the functions such as heat insulation, waterproof, protection against the tide, and aluminum foil material has remarkable heat preservation and insulation, can reflect away the radiation heat of more than 93%.Outside engine air inlet tube, aluminium foil is housed, temperature in engine compartment can be weakened greatly to the transmission of the air in suction tude, effectively reduce intake temperature.Certainly, reflect heat layer 1 is not limited to above-mentioned aluminium foil layer, copper foil layer, tinfoil paper layer etc., and such as reflect heat layer 1 also can be the coating that some reflect heat coating are formed, and reflect heat layer 1 can also adopt the materials such as reflect heat glass to be formed for another example.In a word, as long as reflect heat layer 1 can play the effect of effective reflect radiant heat.
On the basis of above-mentioned engine air inlet tube technological scheme, the invention provides a kind of engine aspirating system, the engine air inlet tube that the above-mentioned arbitrary technological scheme of the present invention limits is installed between the suction port of this engine aspirating system and intake manifold.In addition, the present invention also provides a kind of automobile, and this automobile adopts above-mentioned engine aspirating system.Apparently, because above-mentioned engine aspirating system and automobile all adopt with good grounds engine air inlet tube of the present invention, therefore it has above-mentioned noise reduction, the heat insulation technique effect that engine air inlet tube of the present invention can realize equally.
As can be seen from upper description, engine air inlet tube of the present invention comprises the double layer construction of the spaced outer tube of tool 2 and interior pipe 4, effectively sound insulation function can be realized by the interval between this outer tube 2 and interior pipe 4, and on interior pipe 4, be formed with multiple inner perforated tube 5, jointly silencing apparatus is formed by the interval between this inner perforated tube 5 and inner and outer pipe, thus more effectively insulate against sound, eliminate the noise, reduce the noise in engine air inlet tube significantly.Under further optimal way, in motor of the present invention, porous soundproof material is provided with in interval between outer tube, thus make the noise reduction of described engine air inlet tube more excellent, in addition, the outer surface of described outer tube arranges reflect heat layer, by this reflect heat layer and in, interval between outer tube and porosity soundproof material, engine air inlet tube of the present invention not only can reduce induction noise effectively, and the heat that can reduce or isolate in engine nacelle is passed to the airflow in suction tude, this is for the NVH performance of such as automobile, discharge, oil consumption, engine efficiency raising all has positive role, and significantly improve the riding comfort of automobile.
Below the preferred embodiment of the present invention is described in detail by reference to the accompanying drawings; but; the present invention is not limited to the detail in above-mentioned mode of execution; within the scope of technical conceive of the present invention; can carry out multiple simple variant to technological scheme of the present invention, these simple variant all belong to protection scope of the present invention.Such as, the aluminium foil as reflect heat layer 1 can be changed into molybdenum foil, this belongs to technical conceive of the present invention equally.
It should be noted that in addition, each the concrete technical characteristics described in above-mentioned embodiment, in reconcilable situation, can be combined by any suitable mode.In order to avoid unnecessary repetition, the present invention illustrates no longer separately to various possible compound mode.
In addition, also can carry out combination in any between various different mode of execution of the present invention, as long as it is without prejudice to thought of the present invention, it should be considered as content disclosed in this invention equally.
Claims (6)
1. engine air inlet tube, wherein, this engine air inlet tube comprises outer tube (2) and interior pipe (4), between the tube wall of described outer tube (2) and the tube wall of described interior pipe (4), there is interval, the tube wall of described interior pipe (4) is formed with multiple inner perforated tube (5), with by this inner perforated tube (5) with described in, described interval between outer tube forms silencing apparatus jointly, porosity soundproof material (3) is provided with in interval between described outer tube (2) and interior pipe (4), and, described porosity soundproof material (3) is formed radially as multilayer along described engine air inlet tube, and every layer adopts different porosity soundproof materials, the outer surface of described outer tube (2) is coated with reflect heat layer (1).
2. engine air inlet tube according to claim 1, wherein, described outer tube (2) and/or interior pipe (4) are formed by plastic materials or metallic material.
3. engine air inlet tube according to claim 1, wherein, described porosity soundproof material (3) is sound insulation fiber, Sound-proof material, polyester sponge or polyethers sponge.
4. engine air inlet tube according to claim 1, wherein, described reflect heat layer (1) is aluminium foil layer, copper foil layer or tinfoil paper layer.
5. engine aspirating system, wherein, is provided with engine air inlet tube according to any one of claim 1 to 4 between the suction port of this engine aspirating system and intake manifold.
6. automobile, comprises motor, and wherein, described motor has engine aspirating system according to claim 5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110355660.8A CN103104384B (en) | 2011-11-10 | 2011-11-10 | Engine air inlet tube, engine aspirating system and automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110355660.8A CN103104384B (en) | 2011-11-10 | 2011-11-10 | Engine air inlet tube, engine aspirating system and automobile |
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| Publication Number | Publication Date |
|---|---|
| CN103104384A CN103104384A (en) | 2013-05-15 |
| CN103104384B true CN103104384B (en) | 2015-11-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201110355660.8A Active CN103104384B (en) | 2011-11-10 | 2011-11-10 | Engine air inlet tube, engine aspirating system and automobile |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106555721A (en) * | 2016-11-17 | 2017-04-05 | 江苏星辰星汽车附件有限公司 | A kind of automobile NVH noise reduction air inlet pipe |
| CN106321304A (en) * | 2016-11-25 | 2017-01-11 | 安徽江淮汽车集团股份有限公司 | Spiral air-intake pipeline |
| CN111503410A (en) * | 2020-04-01 | 2020-08-07 | 西安交通大学 | Helmholtz type silencer |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1556895A (en) * | 2001-09-21 | 2004-12-22 | �����ɷ� | Engine intake manifold made of noise barrier composite material |
| CN1606657A (en) * | 2001-12-20 | 2005-04-13 | 美国柴油机燃气公司 | Fuel saving combustion engine insulation method and system |
| WO2005072474A2 (en) * | 2004-01-27 | 2005-08-11 | Emler Don R | Vehicle exhaust systems |
| JP2006002767A (en) * | 2004-06-14 | 2006-01-05 | Veritas Ag | Muffler |
| CN101113702A (en) * | 2006-07-28 | 2008-01-30 | 株式会社电装 | Air inlet |
| CN101153572A (en) * | 2006-09-29 | 2008-04-02 | 株式会社电装 | Air input device |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050150718A1 (en) * | 2004-01-09 | 2005-07-14 | Knight Jessie A. | Resonator with retention ribs |
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- 2011-11-10 CN CN201110355660.8A patent/CN103104384B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1556895A (en) * | 2001-09-21 | 2004-12-22 | �����ɷ� | Engine intake manifold made of noise barrier composite material |
| CN1606657A (en) * | 2001-12-20 | 2005-04-13 | 美国柴油机燃气公司 | Fuel saving combustion engine insulation method and system |
| WO2005072474A2 (en) * | 2004-01-27 | 2005-08-11 | Emler Don R | Vehicle exhaust systems |
| JP2006002767A (en) * | 2004-06-14 | 2006-01-05 | Veritas Ag | Muffler |
| CN101113702A (en) * | 2006-07-28 | 2008-01-30 | 株式会社电装 | Air inlet |
| CN101153572A (en) * | 2006-09-29 | 2008-04-02 | 株式会社电装 | Air input device |
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| CN103104384A (en) | 2013-05-15 |
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