CN108204317A - Admission line - Google Patents
Admission line Download PDFInfo
- Publication number
- CN108204317A CN108204317A CN201611178252.9A CN201611178252A CN108204317A CN 108204317 A CN108204317 A CN 108204317A CN 201611178252 A CN201611178252 A CN 201611178252A CN 108204317 A CN108204317 A CN 108204317A
- Authority
- CN
- China
- Prior art keywords
- resonator
- air inlet
- hole
- inlet face
- admission line
- 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.)
- Pending
Links
- 230000000994 depressogenic effect Effects 0.000 claims description 14
- 239000012530 fluid Substances 0.000 claims description 11
- 238000004891 communication Methods 0.000 claims description 10
- 238000001746 injection moulding Methods 0.000 claims description 8
- 238000000465 moulding Methods 0.000 claims description 5
- 239000000203 mixture Substances 0.000 claims description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000008030 elimination Effects 0.000 description 3
- 238000003379 elimination reaction Methods 0.000 description 3
- 238000005562 fading Methods 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 230000006698 induction Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000000644 propagated effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
- F02M35/12—Intake silencers ; Sound modulation, transmission or amplification
- F02M35/1255—Intake silencers ; Sound modulation, transmission or amplification using resonance
- F02M35/1266—Intake silencers ; Sound modulation, transmission or amplification using resonance comprising multiple chambers or compartments
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
- F02M35/10—Air intakes; Induction systems
- F02M35/104—Intake manifolds
Abstract
A kind of admission line, including：Air inlet pipe, tube wall define the air flow passage inside the air inlet pipe；And resonator, it is arranged on the lateral surface of tube wall, including resonator side wall resonant cavity cover, resonator side wall is connected to the lateral surface of tube wall, resonator side wall, the lateral surface of resonator cover and tube wall surrounds at least one resonator, resonator side wall defines at least one air inlet face for being respectively corresponding to a few resonator on the lateral surface of tube wall, each air inlet face at least one air inlet face offers the through-hole across tube wall, wherein, at least one air inlet face is non-circular, the shape of its corresponding through-hole is non-circular, and, the hydraulic diameter of through-hole is more than the diameter of a circle that air inlet face can be drawn.Above-mentioned admission line, by setting non-circular through-hole, and the hydraulic diameter of through-hole is more than the diameter of a circle that air inlet face can be drawn, and under the premise of identical volume of resonant cavity, can eliminate more low-frequency noise.
Description
Technical field
The present invention relates to the admission line for engine, more particularly to for reducing engine aspirating system noise
Admission line.
Background technology
The gas handling system of engine is commonly used in directing the air into the cylinder of engine, including for purifying the sky of air
Air cleaner and admission line.Currently, in order to reduce the induction noise that external environment is transmitted to from engine interior, usually exist
The resonator or resonance that are used to weaken induction noise that the side of admission line or external setting are in fluid communication with the admission line
Device.
Fig. 1 schematically illustrates traditional resonator 12, is mounted in air flow passage 11 usually as collateral branch,
It is connect by connecting tube 13 with air flow passage 11.Resonator 12 is mainly made of housing, and housing is by the resonator of big volume
121 sealings.Resonator 121 is in fluid communication by connecting tube 13 and air flow passage 11.The also referred to as conspicuous nurse of the resonator 121
Hereby resonator, operation principle are as follows suddenly：Closed resonator has certain acoustic compliance, works as frequency of sound wave similar to air spring
When identical with the intrinsic frequency of resonator, resonance just occurs, resonant frequency and its near, the speed of air vibration reaches most
Greatly, the acoustic energy at this moment consumed is most, and noise attentuation is maximum；When the sound wave propagated in flow channel reaches the company of connection resonator
When taking over interface, since sectional area mutates, acoustic impedance change dramatically, most of sound of resonant frequency and its neighbouring sound wave
Can be reflected back, a part of acoustic energy since the frictional damping of resonator is converted into thermal energy and scatters and disappears, be left fraction acoustic energy after
It is continuous to propagate forward, so as to achieve the purpose that reduce specific frequency noise.
Volume of resonant cavity increases, and it is known in the art that resonant frequency, which reduces this, that is to say, that and volume of resonant cavity is larger,
Can be with the relatively low noise of frequency of fadings, conversely, volume of resonant cavity is smaller, it can be with the larger noise of frequency of fadings.
The noise elimination structure of existing admission line, which is typically employed on the side wall of admission line, sets circular through hole realization humorous
The fluid communication to shake between chamber and the air flow passage of admission line, also, in order to eliminate low frequency noise, it is common practice to
Increase the volume of resonator.However, modern automobile usually requires that the volume of gas handling system reduces, the resonator of big volume occupies
Big quantity space, it is difficult to meet the requirement currently reduced to gas handling system volume.
Invention content
Based on this, it is necessary to it is not compact for existing resonator arrangement and the problem of cannot preferably eliminate low-frequency noise,
A kind of admission line with improved resonator is provided.
To achieve the above object, the present invention provides a kind of admission lines.The admission line includes：
Air inlet pipe, including tube wall, the tube wall defines the air flow passage inside the air inlet pipe；And
Resonator is arranged on the lateral surface of the tube wall, including resonator side wall resonant cavity cover, the resonance
Chamber side wall is connected to the lateral surface of the tube wall, the lateral surface of the resonator side wall, the resonator cover and the tube wall
Surround at least one resonator, the resonator side wall defined on the lateral surface of the tube wall correspond to respectively it is described at least one
At least one air inlet face of resonator, each air inlet face at least one air inlet face are offered across the tube wall
Through-hole, the through-hole realize the fluid communication between at least one resonator and the air flow passage,
It is characterized in that, at least one air inlet face is non-circular, the shape of corresponding through-hole is non-circular, and
And
The hydraulic diameter of the through-hole is more than the diameter of a circle that the air inlet face can be drawn.
Preferably, the shape of the through-hole is polygon.
Preferably, the shape of the through-hole is identical with the shape of the air inlet face.
Preferably, the distance between the edge of the air inlet face and the edge of the through-hole are equal.
Preferably, the tube wall and the resonator side wall integrated injection molding, the resonator cover are individually molded into
Type, and be mounted on the resonator side wall after moulding.
Preferably, the resonator cover is provided with corresponding at least one resonator and as a resonator part
At least one depressed area, the depressed area have the depression volume of setting.
Preferably, the resonator includes the different multiple resonators of volume, and the multiple resonator passes through the resonance
Chamber side wall is separated, and connects each by the through-hole and the air flow passage fluid that are opened up in corresponding air inlet face
It is logical.The resonator cover is provided with the multiple depressed areas for corresponding to the multiple resonator respectively, and the multiple depressed area is respectively
The depression volume having differs.
Preferably, the shape of the air inlet face of the multiple resonator is different.
Preferably, when the admission line, which is bent, to be set, the phase of two adjacent resonators in the multiple resonator
Adjacent resonator side wall is parallel to each other, and the shape of air inlet face composition of the multiple resonator is cut with the axial direction of the air inlet pipe
Face shape is consistent.
Above-mentioned admission line realizes that air flowing is logical by setting non-circular through-hole between air inlet pipe resonant cavity
Fluid communication between road resonant cavity, and the hydraulic diameter of through-hole is more than the diameter of a circle that air inlet face can be drawn, in phase
Under the premise of same volume of resonant cavity, compared to the design of non-circular through-hole that circular through hole, the present invention use, through-hole is increased
Hydraulic diameter, so as to eliminate more low-frequency noise.In other words, to eliminate same low-frequency noise, compared to using circle
The existing Resonator design of shape through-hole, the volume smaller of the resonator according to the present invention using non-circular through-hole occupy smaller
Space.Also, admission line according to the present invention, the edge of air inlet face is equal with the distance between the edge of through-hole, this makes
When obtaining injection molding, the marginal portion of through-hole is shunk uniformly, consequently facilitating the shape area of control through-hole.In addition, pass through setting
The resonator cover of independent injection molding, and the resonator cover has the depressed area of the depression volume of setting, passes through independence
Molding cover, so as to precisely adjust the volume of the recess, so as to accurately control the frequency of the resonator.
Description of the drawings
Fig. 1 is the schematic diagram according to the admission line with resonator of the prior art；
Fig. 2 is the structure diagram according to the admission line of one embodiment of the present of invention；
Fig. 3 is that admission line shown in Fig. 2 removes the cavity resonator structure schematic diagram after resonator cover；
Fig. 4 is the diagrammatic cross-section of admission line shown in Fig. 2.
Specific embodiment
In order to make the foregoing objectives, features and advantages of the present invention clearer and more comprehensible, below in conjunction with the accompanying drawings to the present invention
Specific embodiment be described in detail.Many details are elaborated in the following description in order to fully understand this hair
It is bright.But the invention can be embodied in many other ways as described herein, those skilled in the art can be not
Similar improvement is done in the case of violating intension of the present invention, therefore the present invention is not limited to the specific embodiments disclosed below.
According to one embodiment of present invention, a kind of admission line is provided.As shown in Figures 2 and 4, which includes
21 resonator 22 of air inlet pipe.The air inlet pipe 21 includes tube wall, which defines the air stream inside the air inlet pipe
Dynamic channel 211.Resonator 22 is arranged on the lateral surface of air inlet pipe 21, including resonator side wall resonant cavity cover, the resonance
Chamber side wall is connected to the lateral surface of tube wall.The lateral surface of resonator side wall, resonator cover and tube wall surrounds at least one resonance
Chamber 221, for example, being in the present embodiment four resonators 221, as shown in Figure 3.Resonator side wall is in the lateral surface upper bound of tube wall
Fixed four air inlet faces for corresponding to four resonators 221 respectively.Each air inlet face offers the through-hole 23 across tube wall, the through-hole
Realize the fluid communication between the resonator corresponding to it and air flow passage.
In the present embodiment, as shown in Figure 3-4, admission line includes four resonators, this four resonators pass through resonance
Chamber side wall is separated, and is in fluid communication each by the through-hole and air flow passage that are opened up in corresponding air inlet face.This
Four resonators have different volumes, therefore their intrinsic frequency is different, can be in their intrinsic frequency and its attached
Four kinds of low-frequency noises near frequency generate resonance, so as to weaken these low-frequency noises.It will be appreciated by those skilled in the art that
Although the present embodiment employs the setting for including four resonators, the setting of resonator is without being limited thereto, according to reality
It needs, may only include a resonator or including two, three or more than four resonators.
In the present embodiment, the shape of through-hole is identical with the shape of air inlet face.As shown in figure 3, four resonators 221 into
The shape in gas face is class quadrangle, and the shape of corresponding through-hole 23 is also class quadrangle, and the hydraulic diameter of through-hole 23 is big
In the diameter of a circle that air inlet face can be drawn.It will be appreciated by persons skilled in the art that although air inlet face and through-hole are in this reality
It is class quadrangle to apply in example, but air inlet face and the shape of through-hole are without being limited thereto, and air inlet face and through-hole can be any suitable
Non-circular, particularly polygon.In addition, the shape of the air inlet face of multiple resonators can be different, correspondingly, through-hole
Shape can also be different.
By non-circular through-hole is set between air inlet pipe resonant cavity with realize air flow passage resonant cavity it
Between fluid communication, and the hydraulic diameter of through-hole is more than the diameter of a circle that can draw of air inlet face, in identical resonator appearance
Under the premise of product, compared to the design of non-circular through-hole that circular through hole, the present invention use, the hydraulic diameter of through-hole is increased,
So as to eliminate more low-frequency noise.In other words, to eliminate same low-frequency noise, compared to using the existing of circular through hole
Resonator design, the volume smaller of the resonator according to the present invention using non-circular through-hole, occupies smaller space.
In the present embodiment, the shape of the air inlet face of the corresponding resonator of the shape of through-hole is identical.As described in Figure, it is humorous
Shake chamber 23 air inlet face shape for class quadrangle, the shape of through-hole 23 is the class quadrangle identical with the shape of the air inlet face,
The area of through-hole is less than the area of air inlet face.Preferably, the edge of air inlet face is equal with the distance between the edge of through-hole, that is,
Through-hole is located at the center of air inlet face or coaxial with air inlet face.In this way, in injection molding, the edge part of through-hole
Divide and shrink uniformly, consequently facilitating the shape area of control through-hole.
In the fabrication process, tube wall and resonator side wall integrated injection molding, and the independent injection molding of resonator cover, and
And it is mounted on resonator side wall after moulding.
Preferably, it is provided with corresponding at least one resonator and as at least the one of a resonator part in resonator cover
A depressed area, the depressed area have the depression volume of setting.By independent molding cover, the appearance of recess can be precisely adjusted
Product, and the depression volume by setting depressed area can set the volume of corresponding resonator, so as to fulfill to specific low
The noise elimination of frequency noise.In the present embodiment, due to there are four resonators, resonator cover is provided with corresponds to this respectively
Four depressed areas of four resonators, the depression volume that this four depressed areas respectively have differ.By being directed to different resonance
The volume that is recessed accordingly of chamber design can conveniently and accurately control the volume of each resonator, so as to fulfill to different low
The accurate control of the noise elimination of frequency noise.
With continued reference to Fig. 3 and 4, when admission line, which is bent, to be set, two adjacent resonators in four resonators 221
Adjacent resonators side wall is parallel to each other, and the axial direction of the shape and air inlet pipe 21 of the air inlet face composition of this four resonators 221
Cross sectional shape is consistent.Therefore, when resonator 22 is mounted in air inlet pipe 21, the air inlet face of resonator 221 can be completely along
The lateral surface of air inlet pipe 21, so as to maximumlly simultaneously, be not take up additional space in the opening area for causing through-hole.Thus may be used
See, by the way that the adjacent resonators side wall of two resonators adjacent in multiple resonators is set as parallel to each other, and multiple
The air inlet face composition of resonator is shaped to be consistent with the axial cross section shape of air inlet pipe, can form greater compactness of resonance
Chamber arrangement.
Embodiment described above only expresses the several embodiments of the present invention, and description is more specific and detailed, but simultaneously
Cannot the limitation to the scope of the claims of the present invention therefore be interpreted as.It should be pointed out that for those of ordinary skill in the art
For, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to the guarantor of the present invention
Protect range.Therefore, the protection domain of patent of the present invention should be determined by the appended claims.
Claims (10)
1. a kind of admission line, including：
Air inlet pipe, including tube wall, the tube wall defines the air flow passage inside the air inlet pipe；And
Resonator is arranged on the lateral surface of the tube wall, including resonator side wall resonant cavity cover, the resonator side
Wall is connected to the lateral surface of the tube wall, and the lateral surface of the resonator side wall, the resonator cover and the tube wall surrounds
At least one resonator, the resonator side wall defines on the lateral surface of the tube wall corresponds at least one resonance respectively
At least one air inlet face of chamber, each air inlet face at least one air inlet face are offered across the logical of the tube wall
Hole, the through-hole realize the fluid communication between at least one resonator and the air flow passage,
It is characterized in that, at least one air inlet face is non-circular, the shape of corresponding through-hole is non-circular, also,
The hydraulic diameter of the through-hole is more than the diameter of a circle that the air inlet face can be drawn.
2. admission line according to claim 1, which is characterized in that the shape of the through-hole is polygon.
3. admission line according to claim 1, which is characterized in that the shape of the shape of the through-hole and the air inlet face
It is identical.
4. admission line according to claim 3, which is characterized in that the edge at the edge of the air inlet face and the through-hole
The distance between it is equal.
5. admission line as claimed in any of claims 1 to 4, which is characterized in that the tube wall and the resonance
Chamber side wall integrated injection molding, the independent injection molding of resonator cover, and it is mounted on the resonance after moulding
On chamber side wall.
6. admission line according to claim 5, which is characterized in that the resonator cover is provided with described in correspondence at least
One resonator and as at least one depressed area of a resonator part, the depressed area has the depression volume of setting.
7. admission line according to claim 6, which is characterized in that the resonator includes the different multiple resonance of volume
Chamber, the multiple resonator are separated by the resonator side wall, and each by opening up in corresponding air inlet face
Through-hole and the air flow passage are in fluid communication.
8. admission line according to claim 6, which is characterized in that the resonator cover be provided with respectively correspond to described in
Multiple depressed areas of multiple resonators, the depression volume that the multiple depressed area respectively has differ.
9. admission line according to claim 8, which is characterized in that the shape of the air inlet face of the multiple resonator is not
Together.
10. admission line according to claim 8, which is characterized in that described more when the admission line, which is bent, to be set
The adjacent resonators side wall of two adjacent resonators is parallel to each other in a resonator, and the air inlet face of the multiple resonator
The shape of composition is consistent with the axial cross section shape of the air inlet pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611178252.9A CN108204317A (en) | 2016-12-19 | 2016-12-19 | Admission line |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611178252.9A CN108204317A (en) | 2016-12-19 | 2016-12-19 | Admission line |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108204317A true CN108204317A (en) | 2018-06-26 |
Family
ID=62601506
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611178252.9A Pending CN108204317A (en) | 2016-12-19 | 2016-12-19 | Admission line |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108204317A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111520229A (en) * | 2019-02-05 | 2020-08-11 | 阿克韦尔公司 | Acoustic wave resonator |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1997040271A1 (en) * | 1996-04-22 | 1997-10-30 | Woco Franz-Josef Wolf & Co. | Intake silencer for motor vehicle |
| JP2002295321A (en) * | 2001-03-30 | 2002-10-09 | Nissan Diesel Motor Co Ltd | Noise control equipment for engine |
| EP1403506A2 (en) * | 2002-09-21 | 2004-03-31 | Mann+Hummel Gmbh | Silencer for the reduction of air noise and method for the production thereof |
| EP2295782A1 (en) * | 2009-09-11 | 2011-03-16 | Hutchinson | Silencing device for an intake line of a thermal engine and intake line incorporating a silencing device |
| JP2012193691A (en) * | 2011-03-17 | 2012-10-11 | Sekiso:Kk | Intake duct |
| WO2015085810A1 (en) * | 2013-12-13 | 2015-06-18 | 北汽福田汽车股份有限公司 | Testing device for determining resonant cavity structure of inlet pipe of air filter |
| CN205117556U (en) * | 2015-10-15 | 2016-03-30 | 北汽福田汽车股份有限公司 | Booster intake pipe subassembly and vehicle |
| CN206309501U (en) * | 2016-12-19 | 2017-07-07 | 上海欧菲滤清器有限公司 | Admission line |
-
2016
- 2016-12-19 CN CN201611178252.9A patent/CN108204317A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1997040271A1 (en) * | 1996-04-22 | 1997-10-30 | Woco Franz-Josef Wolf & Co. | Intake silencer for motor vehicle |
| JP2002295321A (en) * | 2001-03-30 | 2002-10-09 | Nissan Diesel Motor Co Ltd | Noise control equipment for engine |
| EP1403506A2 (en) * | 2002-09-21 | 2004-03-31 | Mann+Hummel Gmbh | Silencer for the reduction of air noise and method for the production thereof |
| EP2295782A1 (en) * | 2009-09-11 | 2011-03-16 | Hutchinson | Silencing device for an intake line of a thermal engine and intake line incorporating a silencing device |
| US20110061970A1 (en) * | 2009-09-11 | 2011-03-17 | Hutchinson | Accoustic attenuation device for an intake line of a combustion engine and intake line incorporating same |
| JP2012193691A (en) * | 2011-03-17 | 2012-10-11 | Sekiso:Kk | Intake duct |
| WO2015085810A1 (en) * | 2013-12-13 | 2015-06-18 | 北汽福田汽车股份有限公司 | Testing device for determining resonant cavity structure of inlet pipe of air filter |
| CN205117556U (en) * | 2015-10-15 | 2016-03-30 | 北汽福田汽车股份有限公司 | Booster intake pipe subassembly and vehicle |
| CN206309501U (en) * | 2016-12-19 | 2017-07-07 | 上海欧菲滤清器有限公司 | Admission line |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111520229A (en) * | 2019-02-05 | 2020-08-11 | 阿克韦尔公司 | Acoustic wave resonator |
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