CN103244319B - Intake silencer - Google Patents
Intake silencer Download PDFInfo
- Publication number
- CN103244319B CN103244319B CN201310206088.8A CN201310206088A CN103244319B CN 103244319 B CN103244319 B CN 103244319B CN 201310206088 A CN201310206088 A CN 201310206088A CN 103244319 B CN103244319 B CN 103244319B
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- CN
- China
- Prior art keywords
- high frequency
- film body
- intake silencer
- noise elimination
- frequency noise
- 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.)
- Expired - Fee Related
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Abstract
The invention discloses an intake silencer. The intake silencer comprises a Helmholtz resonance noise elimination mechanism which is provided with an air intake channel, a communicating pipe and a resonance chamber; a high frequency noise elimination unit which is fixedly arranged on the inner wall of the resonance chamber comprises a closed chamber filled with liquid; a part or all of a wall body of the closed chamber is a film body which is capable of guiding vibration and contacts with the liquid; and the Helmholtz resonance noise elimination mechanism is provided with the high frequency noise elimination unit. According to the intake silencer, attenuation and absorption are performed on high frequency noise through vibration of the film body and vibration of the liquid in the closed chamber to achieve the absorption for high frequency and low frequency noise; the high frequency noise elimination unit is located inside the resonance chamber, so that the structure of the high frequency noise elimination unit is compact at the same time; and the high frequency noise elimination unit causes no vortex to an air intake system of an engine, brings no change to the roughness of the inner wall of a pipeline of the air intake system and increases no intake pressure to the engine at the same time. The intake silencer is suitable for air intake systems of various vehicles to effectively absorb the high frequency and low frequency noise.
Description
Technical field
The present invention relates to a kind of silencing apparatus, particularly relate to a kind of intake silencer with Hull Mu Zi resonance noise elimination mechanism.
Background technique
Extensively adopt in the intake silencer of vehicle and have Hull Mu Zi resonance noise elimination mechanism, this mechanism comprises the air inlet runner that supplied gas flows through, the connecting tube be communicated with air inlet runner and the resonant cavity be connected with connecting tube, gas is when air inlet runner moves, gas in connecting tube is to-and-fro motion as piston under the pressure of sound wave, when its frequency is identical with resonant cavity frequency, resonance can be produced, reach noise elimination object, low frequency noise can be eliminated by Hull Mu Zi resonance noise elimination mechanism, but it is helpless to high frequency noise, need to arrange corresponding high frequency noise elimination mechanism toward contact in gas handling system, and too much noise elimination mechanism is set gas handling system will be made to be difficult to layout, affect the suction pressure of motor simultaneously.
Summary of the invention
The technical problem to be solved in the present invention, is to provide a kind of intake silencer, and it can effectively absorb high and low frequency noise simultaneously, and compact in design, can not affect the suction pressure of motor simultaneously.
For solving the problems of the technologies described above, the technical solution used in the present invention is:
A kind of intake silencer, comprise have air inlet runner, connecting tube resonant cavity Hull Mu Zi resonance noise elimination mechanism, the inwall of resonant cavity is fixedly installed high frequency muffling unit, this high frequency muffling unit comprises the enclosed cavity that filling has liquid, the part or all of wall body of enclosed cavity be with liquid comes into contact lead the thin-film body shaken.
As limitation of the invention, be provided with a built-in chamber in enclosed cavity, this built-in chamber is provided with multiple aperture be communicated with enclosed cavity.
As to of the present invention another kind limit, described high frequency muffling unit comprise Steel Support and with this Steel Support sulfuration in one rubber film body, described enclosed cavity is enclosed by Steel Support and rubber film body and forms.
Limit as to of the present invention the third, described high frequency muffling unit comprises rigid stent and is glued to the plastic film body on this rigid stent, and described enclosed cavity is enclosed by rigid stent and plastic film body and forms.
As to the 4th kind of restriction of the present invention, described high frequency muffling unit is bonded as one by the inwall of two sided plaster and resonant cavity.
The present invention also has a kind of restriction, and described high frequency muffling unit is frustoconic shape structure.
Owing to have employed above-mentioned technological scheme, compared with prior art, acquired technological progress is in the present invention:
Intake silencer provided by the present invention, Hull Mu Zi resonance noise elimination mechanism arranges high frequency muffling unit, carry out decay by the vibration of the liquid in the vibration of thin-film body and enclosed cavity to high frequency noise to absorb, reach simultaneously to the object of high and low frequency noise absorption; In addition, because high frequency muffling unit is positioned at the inside of resonant cavity, thus its compact structure; Meanwhile, it can not produce eddy current to the gas handling system of motor, also can not change the degree of roughness of the pipeline inner wall of gas handling system, can not increase the suction pressure of motor;
Arranging the foraminate built-in chamber of tool can make liquid in enclosed cavity back and forth through small holes, improves the attenuating of liquid vibration;
High frequency muffling unit adopts rubber film body and Steel Support, because rubber film body has good shock attenuation result, thus fully can absorb high frequency noise; High frequency muffling unit adopts plastic film body and rigid stent can weight reduction, reduces costs;
High frequency muffling unit is connected with the inside of resonant cavity by two sided plaster, and it connects reliable, easy to use;
High frequency muffling unit adopts frustoconic shape profile, and it is easy to manufacture processing, is convenient to produce in enormous quantities.
The present invention is applicable to, in the gas handling system of various vehicle, effectively absorb high and low frequency noise.
The present invention is described in further detail below in conjunction with Figure of description and specific embodiment.
Accompanying drawing explanation
Fig. 1 is the overall structure schematic diagram of the embodiment of the present invention;
Fig. 2 is the structural representation of the high frequency muffling unit 9 in Fig. 1.
In figure: 1, air inlet runner; 2, connecting tube; 3, resonant cavity; 4, enclosed cavity; 5, Steel Support; 6, built-in chamber; 7, aperture; 8, rubber film body; 9, high frequency muffling unit; 10, two sided plaster; 11, plug.
Embodiment
Embodiment
The present invention is a kind of intake silencer, and as shown in Figures 1 and 2, it comprises existing Hull Mu Zi resonance noise elimination mechanism, this Hull Mu Zi resonance noise elimination mechanism comprise air inlet runner 1, connecting tube 2 resonant cavity 3.
In the intake silencer of the present embodiment, the inwall of resonant cavity 3 is fixedly installed high frequency muffling unit 9, on the basis that it can absorb low frequency noise in original Hull Mu Zi resonance noise elimination mechanism, has reached the effect that high frequency noise is absorbed.This high frequency muffling unit 9 comprises filling liquid enclosed cavity 4, the part or all of wall body of enclosed cavity 4 be with liquid comes into contact lead the thin-film body shaken.Thin-film body can produce vibration when being subject to high frequency noise, and the vibration that it produces, by liquid absorption, becomes the internal motion of liquid.
High frequency muffling unit 9 is set to frustoconic shape, and it comprises a Steel Support 5, also comprises the rubber film body 8 of sulfuration on Steel Support 5, and enclosed cavity 4 is enclosed by Steel Support 5 and rubber film body 8 and forms.The section thickness of rubber film body 8 is identical, and its outer surface all can absorb vibration everywhere.Steel Support 5 is also provided with the built-in chamber 6 that is accommodated in the inwall of enclosed cavity 4, the surface in this built-in chamber 6 is provided with by multiple aperture 7 be communicated with enclosed cavity 4.Rubber material has good absorbing, it by the liquid of vibration passing to its inside, after the liquid in enclosed cavity 4 is vibrated, back and forth can flow between enclosed cavity 4 and built-in chamber 6, when it is through small holes 7, the inhibition of aperture 7 makes the energy of liquid vibration be decayed rapidly.Liquid can adopt oil or water, and Steel Support 5 arranges a plug 11, after pulling up plug 11, and can to built-in chamber 6 and filling liquid in enclosed cavity 4.
The one side of high frequency muffling unit 9 is attached with two sided plaster 10, the inwall of itself and resonant cavity 3 can be bonded as one by this two sided plaster 10, do not need like this to carry out larger change to original resonant cavity 3, only an opening that can open need be set, make high frequency muffling unit 9 can enter into the inside of resonant cavity 3 by opening thus.
Except the present embodiment medium-high frequency muffling unit 9 adopts Steel Support 5 with except rubber film body 8, it can also adopt rigid stent and the plastic film body be glued on rigid stent to make, enclosed cavity 4 is enclosed by rigid stent and plastic film body and forms, owing to not needing vulcanisation operation, therefore rigid stent can adopt the lightweight materials such as plastic board, can weight reduction, reduce the cost.
Claims (5)
1. an intake silencer, comprise have air inlet runner, connecting tube resonant cavity Hull Mu Zi resonance noise elimination mechanism, it is characterized in that: on the inwall of resonant cavity, be fixedly installed high frequency muffling unit, this high frequency muffling unit comprises the enclosed cavity that filling has liquid, the part or all of wall body of enclosed cavity be with liquid comes into contact lead the thin-film body shaken; In enclosed cavity, be provided with a built-in chamber, this built-in chamber is provided with multiple aperture be communicated with enclosed cavity.
2., according to the intake silencer described in claim 1, it is characterized in that: described high frequency muffling unit comprise Steel Support and with this Steel Support sulfuration in one rubber film body; Described enclosed cavity is enclosed by Steel Support and rubber film body and forms.
3. according to the intake silencer described in claim 1, it is characterized in that: described high frequency muffling unit comprises rigid stent and is glued to the plastic film body on this rigid stent, described enclosed cavity is enclosed by rigid stent and plastic film body and forms.
4. according to the intake silencer described in claim 1, it is characterized in that: described high frequency muffling unit is bonded as one by the inwall of two sided plaster and resonant cavity.
5. the intake silencer according to any one of claim 1 to 4, is characterized in that: described high frequency muffling unit is frustoconic shape structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310206088.8A CN103244319B (en) | 2013-05-29 | 2013-05-29 | Intake silencer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310206088.8A CN103244319B (en) | 2013-05-29 | 2013-05-29 | Intake silencer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103244319A CN103244319A (en) | 2013-08-14 |
| CN103244319B true CN103244319B (en) | 2015-03-11 |
Family
ID=48924103
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310206088.8A Expired - Fee Related CN103244319B (en) | 2013-05-29 | 2013-05-29 | Intake silencer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103244319B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105822467B (en) * | 2016-03-30 | 2017-03-22 | 武汉理工大学 | Film vibration absorber installed on air inlet system of automobile |
| CN107461231A (en) * | 2017-09-29 | 2017-12-12 | 武汉理工大学 | A kind of model muffler |
| CN113958435A (en) * | 2021-11-16 | 2022-01-21 | 安徽江淮汽车集团股份有限公司 | Vehicle air intake system |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1144266A (en) * | 1997-07-29 | 1999-02-16 | Toyota Motor Corp | Resonator |
| US20050133300A1 (en) * | 2002-05-29 | 2005-06-23 | Marcus Hofmann | Device for establishing noise in a motor vehicle |
| DE102005020302A1 (en) * | 2005-04-03 | 2006-10-05 | Volkswagen Ag | Muffler for use in internal combustion engine, has flexible material or polyethylene foil for locking individual resonator chambers of housing opposite interior of air supply line which radially extends from housing |
| EP1808594A1 (en) * | 2006-01-13 | 2007-07-18 | Denso Corporation | Intake muffler |
| CN102729540B (en) * | 2012-07-04 | 2015-06-10 | 株洲时代电气绝缘有限责任公司 | Vehicle silencing sheet and preparation method thereof |
| CN102913355A (en) * | 2012-11-02 | 2013-02-06 | 重庆大学 | Single-cavity multi-resonant-frequency lateral-support resonant muffler |
-
2013
- 2013-05-29 CN CN201310206088.8A patent/CN103244319B/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN103244319A (en) | 2013-08-14 |
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Legal Events
| Date | Code | Title | Description |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150311 |