CN206617215U - A kind of MPV exhaust silencer devices - Google Patents
A kind of MPV exhaust silencer devices Download PDFInfo
- Publication number
- CN206617215U CN206617215U CN201720083529.3U CN201720083529U CN206617215U CN 206617215 U CN206617215 U CN 206617215U CN 201720083529 U CN201720083529 U CN 201720083529U CN 206617215 U CN206617215 U CN 206617215U
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- China
- Prior art keywords
- chamber
- perforation
- housing
- dividing plate
- air inlet
- 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
Links
- 230000003584 silencer Effects 0.000 title claims abstract description 21
- 229920000742 Cotton Polymers 0.000 claims abstract description 13
- 238000005192 partition Methods 0.000 claims abstract description 13
- 230000030279 gene silencing Effects 0.000 claims abstract description 7
- 230000000694 effects Effects 0.000 description 4
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 230000011514 reflex Effects 0.000 description 1
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- Exhaust Silencers (AREA)
Abstract
The utility model is related to a kind of MPV exhaust silencer devices, the first dividing plate in housing is set in turn in including housing and from left to right, second partition and the 3rd dividing plate, the inner chamber of housing is divided into first chamber by it, second chamber, 3rd chamber and the 4th chamber, air inlet pipe and escape pipe are additionally provided with housing, multiple first perforation are provided with the tube wall that air inlet pipe is located in second chamber, multiple second perforation are provided with the tube wall that air inlet pipe is located in the 3rd chamber, intervalve is additionally provided with housing, multiple 3rd perforation are provided with the tube wall that intervalve is located in the 3rd chamber, first dividing plate is provided with multiple four perforation, second partition is provided with multiple five perforation, 3rd dividing plate is provided with multiple six perforation, silencing cotton is respectively equipped with the medial surface of the medial surface of second chamber and the 3rd chamber.MPV exhaust silencer devices of the present utility model can have preferable noise reduction simultaneously by the setting of intervalve and silencing cotton to high, medium and low frequency sound wave.
Description
Technical field
The utility model is related to a kind of exhaust silencer, more particularly to a kind of MPV exhaust silencer devices.
Background technology
Exhaust silencer is a kind of device for reducing produced noise when motor car engine works, muffler
Generally comprise and be additionally provided with the air inlet connected respectively with housing cavity on housing and the multiple dividing plates being arranged in housing cavity, housing
Multiple perforation are provided with pipe and escape pipe, air inlet pipe and escape pipe, so that the certain interference that can occur between sound wave, from
And reduce noise.Existing muffler due to structure design, or rise centering, high frequency sound wave noise reduction compared with
It is good, or the noise reduction of centering low-frequency sound wave is preferably, and can not all have preferable noise reduction to high, medium and low frequency sound wave simultaneously
Effect.
In view of above-mentioned defect, the design people is actively subject to research and innovation, to found a kind of MPV of new structure
Exhaust silencer device.
Utility model content
In order to solve the above technical problems, the purpose of this utility model be to provide one kind can be to high, medium and low frequency sound wave simultaneously
MPV exhaust silencer devices with preferable noise reduction.
MPV exhaust silencer devices of the present utility model, including housing and be set in turn in from left to right in housing
One dividing plate, second partition and the 3rd dividing plate, first dividing plate, second partition, the 3rd dividing plate by the inner chamber of housing be divided into from
Air inlet pipe is additionally provided with first chamber, second chamber, the 3rd chamber and the 4th chamber that left-to-right is arranged in order, the housing
And escape pipe, the arrival end of the air inlet pipe is arranged at the air inlet of housing, and the port of export of air inlet pipe is arranged at the 4th chamber
Interior, the arrival end of the escape pipe is arranged in first chamber, and the port of export of escape pipe is arranged at the exhaust ports of housing, described
Multiple first perforation connected with the second chamber are provided with the tube wall that air inlet pipe is located in second chamber, air inlet pipe is located at
It is provided with tube wall in 3rd chamber in being additionally provided with multiple second perforation with the 3rd chamber, the housing
Between manage, one end of the intervalve is arranged in first chamber, and the other end of intervalve is arranged in the 4th chamber, intervalve position
In being provided with multiple 3rd perforation with the 3rd chamber on the tube wall in the 3rd chamber, first dividing plate is provided with
Connect be communicated with multiple 4th perforation of the first chamber and second chamber, the second partition second chamber with
Multiple the six of the 3rd chamber and the 4th chamber is communicated with multiple 5th perforation of 3rd chamber, the 3rd dividing plate
Silencing cotton is respectively equipped with the medial surface of perforation, the medial surface of the second chamber and the 3rd chamber.
Further, MPV exhaust silencer devices of the present utility model, the intervalve be located at the 3rd chamber the mouth of pipe be in
It is horn-like that caliber is tapered into.
Further, MPV exhaust silencer devices of the present utility model, the escape pipe is located at the arrival end of first chamber
Place is provided with the bend pipe connected with the escape pipe.
Further, MPV exhaust silencer devices of the present utility model, the bend pipe is integrally formed with escape pipe.
Further, MPV exhaust silencer devices of the present utility model, the housing includes upper shell and positioned at upper shell
The lower house of lower section, the upper shell and lower house surround to form a closed space.
By such scheme, the utility model at least has advantages below：MPV exhaust silencers dress of the present utility model
Put, by the setting of silencing cotton, there can be preferable effect effect to medium-high frequency, the setting of intervalve can
It is effectively reduced the noise of middle low frequency.
Described above is only the general introduction of technical solutions of the utility model, in order to better understand skill of the present utility model
Art means, and being practiced according to the content of specification, with preferred embodiment of the present utility model and coordinate accompanying drawing detailed below
Describe in detail bright as after.
Brief description of the drawings
Fig. 1 is the sectional view of the utility model MPV exhaust silencer devices；
Fig. 2 is the front view of the first dividing plate；
Fig. 3 is the front view of second partition；
Fig. 4 is the front view of the 3rd dividing plate.
Wherein, 1：Housing；2：First dividing plate；3：Second partition；4：3rd dividing plate；5：First chamber；6：Second chamber；7：
3rd chamber；8：4th chamber；9：Air inlet pipe；10：Escape pipe；11：Air inlet；12：Exhaust outlet；13：First perforation；14：The
Two perforation；15：Intervalve；16：3rd perforation；17：4th perforation；18：5th perforation；19：6th perforation；20：Silencing cotton；
21：Bend pipe；22：Upper shell；23：Lower house.
Embodiment
With reference to the accompanying drawings and examples, embodiment of the present utility model is described in further detail.Below
Embodiment is used to illustrate the utility model, but is not limited to scope of the present utility model.
Referring to Fig. 1 to Fig. 4, a kind of MPV exhaust silencer devices of the preferred embodiment of the utility model one, including housing 1
Be set in turn in the first dividing plate 2, the dividing plate 4 of second partition 3 and the 3rd in housing from left to right, the first dividing plate, second partition,
The inner chamber of housing is divided into the first chamber 5 arrayed from left to right, second chamber 6, the 3rd chamber 7 and by the 3rd dividing plate
Air inlet pipe 9 and escape pipe 10 are additionally provided with four chambers 8, housing, the arrival end of air inlet pipe is arranged at the air inlet 11 of housing,
The port of export of air inlet pipe is arranged in the 4th chamber, and the arrival end of escape pipe is arranged in first chamber, the port of export of escape pipe
It is arranged at the exhaust outlet 12 of housing, connected with second chamber multiple is provided with the tube wall that air inlet pipe is located in second chamber
Multiple second perforation 14 with the 3rd chamber are provided with first perforation 13, the tube wall that air inlet pipe is located in the 3rd chamber,
Intervalve 15 is additionally provided with housing, one end of intervalve is arranged in first chamber, and the other end of intervalve is arranged at the 4th
In chamber, multiple 3rd perforation 16 with the 3rd chamber, first are provided with the tube wall that intervalve is located in the 3rd chamber
Be communicated with being communicated with multiple four perforation 17 of first chamber and second chamber, second partition on dividing plate second chamber with
Multiple 6th perforation of the 3rd chamber and the 4th chamber are communicated with multiple 5th perforation 18 of 3rd chamber, the 3rd dividing plate
19, silencing cotton 20 is respectively equipped with the medial surface of the medial surface of second chamber and the 3rd chamber.Preferably, intervalve is located at the
The mouth of pipe of three chambers in caliber taper into it is horn-like.Set preferably, escape pipe is located at the arrival end of first chamber
There is the bend pipe 21 connected with escape pipe.Preferably, bend pipe is integrally formed with escape pipe.Preferably, housing includes upper shell
22 and the lower house 23 below upper shell, upper shell and lower house surround to form a closed space.
During specific works, sound wave is spread into housing by air inlet pipe, through second chamber in air inlet pipe
During one perforation, medium, high frequency sound wave is entered in the acoustical cotton in second chamber by aperture, and high in the loose structure of acoustical cotton
Frequency vibration, acoustic energy is dissipated in air by being converted into the form of heat energy.When sound wave is by three chambers, sound wave is again
Entered by the second perforation in air inlet pipe in the acoustical cotton in the 3rd chamber, one side medium, high frequency sound wave passes through acoustical cotton
Loose structure and be converted into heat energy, on the other hand the sound wave of identical frequency through the second perforation in air inlet pipe and intervalve the
Three perforation when interfere, the magnitudes of acoustic waves of identical frequency is decayed, thus in significantly reducing, low-frequency noise.Big portion
Sound wave is divided to continue on air inlet pipe propagation, when entering four chambers, because there is larger impedance unbalance in air inlet pipe outlet,
In part, low-frequency sound wave reflects.Similarly, equally occur in impedance unbalance, part in intervalve porch, low-frequency sound wave
Reflect.At the same time, the 4th chamber interior point medium, high frequency sound wave is because reflex is again by the 6th on the 3rd dividing plate
The 5th perforation in perforation and second partition is entered in the 3rd chamber and second chamber, and heat is dissipated into the presence of acoustical cotton
Energy.In order to reduce the crushing of intervalve porch, in entry position there is provided " loudspeaker " structure, for guiding air-flow stream
It is dynamic, reduce vortex and reproduced air-flow noise.Sound wave enters " loudspeaker " structure, first chamber is spread into along intervalve, in
Between pipe exit sound wave because of larger divergence ratio impedance unbalance, in, low-frequency sound wave decayed.Part in first chamber
Again gone into after the reflection of medium, high frequency sound wave in second chamber and the 3rd chamber, heat energy is converted into the presence of acoustical cotton.Most
Whole sound wave is radiated in air by escape pipe.Especially, a bend pipe is provided with escape pipe porch, the purpose is to for
Insertion of the extension escape pipe in first chamber, so as to improve low frequency soundproof effect, eliminate eliminate the noise pass through frequency.
It the above is only preferred embodiment of the present utility model, be not limited to the utility model, it is noted that for
For those skilled in the art, on the premise of the utility model technical principle is not departed from, if can also make
Dry improvement and modification, these improvement and modification also should be regarded as protection domain of the present utility model.
Claims (5)
1. a kind of MPV exhaust silencer devices, including housing and be set in turn in from left to right in housing the first dividing plate, second
Dividing plate and the 3rd dividing plate, the inner chamber of housing is divided into by first dividing plate, second partition, the 3rd dividing plate arranges successively from left to right
Air inlet pipe and escape pipe are additionally provided with first chamber, second chamber, the 3rd chamber and the 4th chamber of row, the housing, institute
The arrival end for stating air inlet pipe is arranged at the air inlet of housing, and the port of export of air inlet pipe is arranged in the 4th chamber, the outlet
The arrival end of pipe is arranged in first chamber, and the port of export of escape pipe is arranged at the exhaust ports of housing, it is characterised in that：It is described
Multiple first perforation connected with the second chamber are provided with the tube wall that air inlet pipe is located in second chamber, air inlet pipe is located at
It is provided with tube wall in 3rd chamber in being additionally provided with multiple second perforation with the 3rd chamber, the housing
Between manage, one end of the intervalve is arranged in first chamber, and the other end of intervalve is arranged in the 4th chamber, intervalve position
In being provided with multiple 3rd perforation with the 3rd chamber on the tube wall in the 3rd chamber, first dividing plate is provided with
Connect be communicated with multiple 4th perforation of the first chamber and second chamber, the second partition second chamber with
Multiple the six of the 3rd chamber and the 4th chamber is communicated with multiple 5th perforation of 3rd chamber, the 3rd dividing plate
Silencing cotton is respectively equipped with the medial surface of perforation, the medial surface of the second chamber and the 3rd chamber.
2. MPV exhaust silencer devices according to claim 1, it is characterised in that：The intervalve is located at the 3rd chamber
The mouth of pipe in caliber taper into it is horn-like.
3. MPV exhaust silencer devices according to claim 1, it is characterised in that：The escape pipe is located at first chamber
Arrival end at be provided with the bend pipe connected with the escape pipe.
4. MPV exhaust silencer devices according to claim 3, it is characterised in that：The bend pipe and escape pipe one into
Type.
5. MPV exhaust silencer devices according to claim 1, it is characterised in that：The housing includes upper shell and position
Lower house below upper shell, the upper shell and lower house surround to form a closed space.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720083529.3U CN206617215U (en) | 2017-01-22 | 2017-01-22 | A kind of MPV exhaust silencer devices |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720083529.3U CN206617215U (en) | 2017-01-22 | 2017-01-22 | A kind of MPV exhaust silencer devices |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206617215U true CN206617215U (en) | 2017-11-07 |
Family
ID=60230142
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720083529.3U Expired - Fee Related CN206617215U (en) | 2017-01-22 | 2017-01-22 | A kind of MPV exhaust silencer devices |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206617215U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108590811A (en) * | 2018-04-12 | 2018-09-28 | 柳州利和排气控制系统有限公司 | Motor vehicle exhaust muffler |
| CN114135364A (en) * | 2021-12-07 | 2022-03-04 | 杭叉集团股份有限公司 | Three-channel parallel double-resonant-cavity exhaust muffler for industrial vehicle |
-
2017
- 2017-01-22 CN CN201720083529.3U patent/CN206617215U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108590811A (en) * | 2018-04-12 | 2018-09-28 | 柳州利和排气控制系统有限公司 | Motor vehicle exhaust muffler |
| CN114135364A (en) * | 2021-12-07 | 2022-03-04 | 杭叉集团股份有限公司 | Three-channel parallel double-resonant-cavity exhaust muffler for industrial vehicle |
| CN114135364B (en) * | 2021-12-07 | 2023-09-15 | 杭叉集团股份有限公司 | Three-channel parallel double-resonant-cavity industrial vehicle exhaust muffler |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| 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: 20171107 Termination date: 20220122 |