CN204716339U - The silencing apparatus of compact type exhaust - Google Patents
The silencing apparatus of compact type exhaust Download PDFInfo
- Publication number
- CN204716339U CN204716339U CN201520211223.2U CN201520211223U CN204716339U CN 204716339 U CN204716339 U CN 204716339U CN 201520211223 U CN201520211223 U CN 201520211223U CN 204716339 U CN204716339 U CN 204716339U
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- CN
- China
- Prior art keywords
- cavity
- communicated
- tube
- supplying tube
- baffler
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- Expired - Fee Related
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- Exhaust Silencers (AREA)
Abstract
A kind of silencing apparatus of compact type exhaust, comprise front baffler and after silencer, one end of front supplying tube is communicated to outside through front supplying tube, the other end is communicated to front expansion chamber, and the internal duct of front supplying tube is communicated in front resonant cavity by input hole group before on its tube wall, one end of rear supplying tube is communicated to outside through front resistive chamber, the other end is communicated to front expansion chamber, and the internal duct of front output tube is communicated to front resistive chamber by delivery outlet group before on its tube wall, the inside of after silencer is separated into the first cavity in turn by two pieces of rear bulkheads, second cavity and the 3rd cavity, supplying tube after after silencer is built-in with, intubate and rear output tube, one end of described rear supplying tube is communicated to the 3rd cavity through after the first cavity and the second cavity in turn, the other end is communicated to outside, and the internal duct of intubate is communicated to the second cavity by the insertion hole group on its tube wall, aim to provide a kind of can ensure overall erasure effect and sound-damping qualities large compact type exhaust silencing apparatus.
Description
Technical field
The utility model relates to the silencing apparatus of a kind of compact type exhaust.
Background technique
Motor produces power by the detonation of oil plant, therefore, can produce larger noise in running; Particularly for motor car engine, because it is easy to use, can be used for any occasion needing power, adaptability is stronger.Therefore, be equipped with to motor car engine and take that denoising effect is good, the little baffler that takes up room is necessary.
Existing baffler can be divided into resistive muffler, resistant noise-reducing device and impedance composite baffler; Wherein, resistive muffler mainly utilizes sound-absorbing porous material to reduce noise, and centering high frequency noise has good soundproof effect; Meanwhile, resistant noise-reducing device combines primarily of the pipe of abrupt interface and room, in being applicable to eliminate, low frequency noise; Impedance composite baffler is then that resistive muffler and resistant noise-reducing device are combined formation according to certain mode, there is the effect of good removal noise, inevitable, impedance composite baffler needs to occupy larger installing space, causes the use in space to waste.
Model utility content
For the deficiency that prior art exists, the purpose of this utility model is to provide a kind of compact structure, saves control, and has the silencing apparatus of the compact type exhaust of good performance muffler.
For achieving the above object, the utility model provides following technological scheme:
A kind of silencing apparatus of compact type exhaust, comprise front baffler and after silencer, the inside of described front baffler is separated into front resonant cavity in turn by dividing plate before two pieces, front expansion chamber and front resistive cavity, supplying tube and front output tube before described front baffler is built-in with, one end of described front supplying tube is communicated to outside through front supplying tube, the other end is communicated to front expansion chamber, and the internal duct of described front supplying tube is communicated in front resonant cavity by input hole group before on its tube wall, one end of described rear supplying tube is communicated to outside through front resistive chamber, the other end is communicated to front expansion chamber, and the internal duct of described front output tube is communicated to front resistive chamber by delivery outlet group before on its tube wall, attractive material is filled with in described front resistive chamber,
The inside of described after silencer is separated into the first cavity in turn by two pieces of rear bulkheads, second cavity and the 3rd cavity, baffler is built-in with rear supplying tube in the rear, intubate and rear output tube, one end of described rear supplying tube is communicated to the 3rd cavity through after the first cavity and the second cavity in turn, the other end is communicated to outside, one end of described intubate is communicated to the first cavity, the other end passes the second cavity connects to the 3rd cavity, and the internal duct of described intubate is communicated to the second cavity by the insertion hole group on its tube wall, described rear output tube one end is communicated to the first cavity, the other end passes the second cavity connects to the 3rd cavity, and the internal duct of described rear supplying tube is communicated to the second cavity by the rear input hole group on its tube wall, attractive material is filled with in described second cavity.
Preferably, the internal duct of described front supplying tube and rear supplying tube is positioned at same straight line.
Preferably, described attractive material adopts acoustical cotton.
Compared with prior art, the baffler that the utility model provides is combined by front baffler and after silencer, medium-high frequency noise is effectively eliminated by front baffler, medium and low frequency noise eliminated by after silencer, under simple in structure, compact prerequisite, ensure that overall good muffling effect, effect that sound-damping qualities is large.
Accompanying drawing explanation
Fig. 1 is the cut-away view of baffler before the silencing apparatus embodiment of the utility model compact type exhaust;
Fig. 2 is the cut-away view of the silencing apparatus embodiment after silencer of the utility model compact type exhaust.
Accompanying drawing marks: 1, front baffler; 11, front resonant cavity; 12, front expansion chamber; 13, front resistive chamber; 14, the first dividing plate; 15, second partition; 16, front supplying tube; 161, front input hole group; 17, front output tube; 171, front delivery outlet group; 2, after silencer; 21, the first cavity; 22, the second cavity; 23, the 3rd cavity; 24, the 3rd dividing plate; 25, the 4th dividing plate; 26, rear supplying tube; 27, intubate; 271, insertion hole group 271; 28, rear output tube; 281, rear delivery outlet group.
Embodiment
Referring to figs. 1 through Fig. 2, the silencing apparatus embodiment that the utility model compact type is vented is described further.
A silencing apparatus for compact type exhaust, comprises front baffler 1 and after silencer 2;
Wherein, the inside of front baffler 1 by the first dividing plate 14 and second partition 15 from left to right be separated into front resonant cavity 11, front expansion chamber 12 and front resistive chamber 13 in turn, supplying tube 16 and front output tube 17 before the inside of front baffler 1 is provided with simultaneously; The present embodiment preferably offers nose air intake on front resonant cavity 11, one end of front supplying tube 16 is communicated to outside by nose air intake, before the other end stretches to after sealingly extending through the first dividing plate 14 in expansion chamber 12, and offer on the tube wall of front supplying tube 16 be communicated with before input hole group 161 before resonant cavity 11; Air outlet before the present embodiment preferably offers on front resistive chamber 13, one end of front output tube 17 is communicated to outside by front air outlet, the other end stretches to front expansion chamber 12 through after second partition 15, and delivery outlet group 171 before offering on the tube wall of front output tube 17, and be filled with acoustical cotton to front resistive chamber 13.So, by above-mentioned structure, a structure is relatively simple, front baffler 1 that noise reduction scope is wide; Particularly, the front input hole group 161 of the present embodiment and front resonant cavity 11 constitute resonance noise-reducing structure, and front delivery outlet group 171, front resistive chamber 13 and the acoustical cotton being positioned at front resistive chamber 13 constitute resistive noise-reducing structure; First the noise entered by nose air intake carries out resonance noise reduction through resonance noise-reducing structure, removes medium and low frequency noise, then by front expansion chamber 12 to remove low frequency noise further, finally by front resistive noise-reducing structure, removes high frequency noise.The present embodiment mentality of designing is clear, and by the progressively removal noise of low frequency tremendously high frequency, structure is simple, Be very effective.
In addition, for the ease of installing, the mouth of pipe of front supplying tube 16 and front output tube 17 being alignd in front expansion chamber 12, is convenient to installation and the maintenance of front baffler 1 parts.
The inside of after silencer 2 by the 3rd dividing plate 24 and the 4th dividing plate 25 from left to right be separated into the first cavity 21, second cavity 22 and the 3rd cavity 23; Exist, after silencer 2 is equipped with rear supplying tube 26, intubate 27 and rear output tube 28 simultaneously; Suction port after first cavity 21 offers, air outlet after 3rd cavity 23 offers, one end of rear supplying tube 26 is communicated to outside by rear suction port, and the other end stretches in the 3rd cavity 23 after sealingly extending through the 3rd dividing plate 24 and the 4th dividing plate 25 successively; One end of intubate 27 stretches in the first cavity 21 through the 3rd dividing plate 24, the other end stretches in the 3rd cavity 23 through the 4th dividing plate 25, exist simultaneously, one end of intubate 27 is communicated to the first cavity 21, the other end is communicated to the 3rd cavity 23 through the second cavity 22, and the internal duct of intubate 27 is communicated to the second cavity 22 by the insertion hole group 271 on its tube wall, in the second cavity 22, be filled with acoustical cotton; Rear output tube 28 one end is communicated to outside by rear air outlet, and the other end stretches in the first cavity 21 after passing the 4th dividing plate 25 and the 3rd dividing plate 24 successively, delivery outlet group 281 after the tube wall of rear output tube 28 offers.So, by above-mentioned project organization, it is inner that waste gas enters to after silencer 2 by rear suction port, and the noise in waste gas is entering in the process of intubate 27 by rear supplying tube 26, the functional equivalent of the 3rd cavity 23 in expansion chamber, to eliminate medium and low frequency noise; Insertion hole group 271, second cavity 22 and the acoustical cotton being arranged in the second cavity 22 constitute resistive noise-reducing structure, are entered to the waste gas of intubate 27 by the 3rd cavity 23, can, through aforesaid resistive noise-reducing structure, realize removing high frequency noise; After waste gas is entered to by intubate 27 output tube 28 process in, the first cavity 21 is also equal to expansion chamber, eliminates the medium and low frequency noise in waste gas further; Rear delivery outlet group 281, second cavity 22 and the acoustical cotton being arranged in the second cavity 22 can also form resistive noise-reducing structure, after waste gas enters, delivery outlet group 281 exports external cavity to, and aforesaid resistive noise-reducing structure eliminates the medium-high frequency noise in waste gas further.
Above-mentioned front baffler 1 structural design is simple, noise reduction scope is wide, is suitable for using; After silencer 2 simple and compact structure, by three cavitys, achieves twice resistant noise-reducing and resistive noise reduction, and overall sound-damping qualities is comparatively large, has huge use value.
The above is only preferred implementation of the present utility model, protection domain of the present utility model be not only confined to above-described embodiment, and all technological schemes belonged under the utility model thinking all belong to protection domain of the present utility model.It should be pointed out that for those skilled in the art, do not departing from the some improvements and modifications under the utility model principle prerequisite, these improvements and modifications also should be considered as protection domain of the present utility model.
Claims (3)
1. the silencing apparatus of a compact type exhaust, comprise front baffler and after silencer, it is characterized in that, the inside of described front baffler is separated into front resonant cavity in turn by dividing plate before two pieces, front expansion chamber and front resistive cavity, supplying tube and front output tube before described front baffler is built-in with, one end of described front supplying tube is communicated to outside through front supplying tube, the other end is communicated to front expansion chamber, and the internal duct of described front supplying tube is communicated in front resonant cavity by input hole group before on its tube wall, one end of described rear supplying tube is communicated to outside through front resistive chamber, the other end is communicated to front expansion chamber, and the internal duct of described front output tube is communicated to front resistive chamber by delivery outlet group before on its tube wall, sound absorbing material is filled with in described front resistive chamber, the inside of described after silencer is separated into the first cavity in turn by two pieces of rear bulkheads, second cavity and the 3rd cavity, baffler is built-in with rear supplying tube in the rear, intubate and rear output tube, one end of described rear supplying tube is communicated to the 3rd cavity through after the first cavity and the second cavity in turn, the other end is communicated to outside, one end of described intubate is communicated to the first cavity, the other end passes the second cavity connects to the 3rd cavity, and the internal duct of described intubate is communicated to the second cavity by the insertion hole group on its tube wall, described rear output tube one end is communicated to the first cavity, the other end passes the second cavity connects to the 3rd cavity, and the internal duct of described rear supplying tube is communicated to the second cavity by the rear input hole group on its tube wall, sound absorbing material is filled with in described second cavity.
2. the silencing apparatus of compact type exhaust according to claim 1, it is characterized in that, the internal duct of described front supplying tube and rear supplying tube is positioned at same straight line.
3. the silencing apparatus of compact type exhaust according to claim 1, is characterized in that, described sound absorbing material adopts acoustical cotton.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520211223.2U CN204716339U (en) | 2015-04-09 | 2015-04-09 | The silencing apparatus of compact type exhaust |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520211223.2U CN204716339U (en) | 2015-04-09 | 2015-04-09 | The silencing apparatus of compact type exhaust |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204716339U true CN204716339U (en) | 2015-10-21 |
Family
ID=54315342
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520211223.2U Expired - Fee Related CN204716339U (en) | 2015-04-09 | 2015-04-09 | The silencing apparatus of compact type exhaust |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204716339U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111512038A (en) * | 2017-12-20 | 2020-08-07 | 梦达驰德国有限公司 | Wide-band muffler for motor vehicle engine |
| CN112963383A (en) * | 2021-02-01 | 2021-06-15 | 杭州贝丰科技有限公司 | Noise reduction device, high-speed turbofan and breathing machine |
-
2015
- 2015-04-09 CN CN201520211223.2U patent/CN204716339U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111512038A (en) * | 2017-12-20 | 2020-08-07 | 梦达驰德国有限公司 | Wide-band muffler for motor vehicle engine |
| CN111512038B (en) * | 2017-12-20 | 2022-06-14 | 梦达驰德国有限公司 | Wide-band muffler for motor vehicle engine |
| CN112963383A (en) * | 2021-02-01 | 2021-06-15 | 杭州贝丰科技有限公司 | Noise reduction device, high-speed turbofan and breathing machine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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: 20151021 Termination date: 20170409 |