CN204175373U - A kind of exhaust silencer except high frequency - Google Patents
A kind of exhaust silencer except high frequency Download PDFInfo
- Publication number
- CN204175373U CN204175373U CN201420585269.6U CN201420585269U CN204175373U CN 204175373 U CN204175373 U CN 204175373U CN 201420585269 U CN201420585269 U CN 201420585269U CN 204175373 U CN204175373 U CN 204175373U
- Authority
- CN
- China
- Prior art keywords
- end cap
- anger
- air inlet
- partition
- dividing plate
- 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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- Exhaust Silencers (AREA)
Abstract
The utility model discloses a kind of exhaust silencer except high frequency, it is characterized in that, air inlet end cap is occluding with respectively and end cap of giving vent to anger at the two ends of housing, first dividing plate and second partition are by enclosure interior interval, in the intermediate portion of air inlet end cap and the first dividing plate, air inlet diffusing tube is installed, in the intermediate portion of give vent to anger end cap and second partition, diffusing tube of giving vent to anger is installed, the surrounding between the first dividing plate and second partition is provided with many intervalves.By above setting, the utility model maintains the effective advantage of resistance exhaust silencer centering, low frequency silencing noise, and air-flow by repeatedly to turn to and repeatedly vent to the noise elimination of high frequency, engine noise is well eliminated, in actual entrucking uses, obtains good effect.
Description
Technical field
The utility model relates to a kind of engine exhaust muffler, particularly relates to a kind of exhaust silencer except high frequency utilizing multilayer perforation structure and glass fibre to eliminate engine noise.
Background technique
At present, existing engine exhaust muffler mainly adopts the resistance exhaust silencer structure of pipeline section expansion and cross-sectional constriction, utilize sound wave in the change of abrupt change of cross-section place due to acoustic reactance, some sound wave goes back to sound source reflects, and not by the outlet of silencing apparatus, thus reach the object of noise elimination.This resistance exhaust silencer centering, low-frequency silencing noise effect are better.And for high frequency noise, due to the perforation pipeline section good to high frequency noise soundproof effect of employing and the negligible amounts of perforated plate, and the inner resistive sound-absorbing material that layout is not good to high frequency noise acoustically effective, it is undesirable to the soundproof effect of high frequency noise.
Summary of the invention
The purpose of this utility model is to provide a kind of exhaust silencer except high frequency that especially high band soundproof effect is good in whole frequency range.
To achieve these goals, the utility model is occluding with air inlet end cap and end cap of giving vent to anger respectively at the two ends of housing, first dividing plate and second partition are by enclosure interior interval, in the intermediate portion of air inlet end cap and the first dividing plate, air inlet diffusing tube is installed, one end of air inlet diffusing tube is closed by described first dividing plate, in the intermediate portion of give vent to anger end cap and second partition, diffusing tube of giving vent to anger is installed, the one end of diffusing tube of giving vent to anger is closed by described second partition, the surrounding between the first dividing plate and second partition is provided with many intervalves.
By above setting, the utility model maintains the effective advantage of resistance exhaust silencer centering, low frequency silencing noise, and air-flow by repeatedly to turn to and repeatedly vent to the noise elimination of high frequency, engine noise is well eliminated, in actual entrucking uses, obtains good effect.
Accompanying drawing explanation
Now by reference to the accompanying drawings the utility model is described further.
Fig. 1 is the utility model structural representation.
Fig. 2 is the A-A sectional view of Fig. 1.
In figure: 1, housing, 2, air inlet end cap, 3, end cap of giving vent to anger, the 4, first dividing plate, 5, second partition, 6, air inlet diffusing tube, 7, diffusing tube of giving vent to anger, 8, intervalve.
Embodiment
As shown in Figure 1, 2, the utility model is occluding with air inlet end cap 2 and end cap 3 of giving vent to anger respectively at the two ends of housing 1, first dividing plate 4 and second partition 5 are by housing 1 internal layout, in the intermediate portion of air inlet end cap 2 and the first dividing plate 4, air inlet diffusing tube 6 is installed, one end of air inlet diffusing tube 6 is closed by described first dividing plate 4, giving vent to anger, the intermediate portion of end cap 3 with second partition 5 is provided with diffusing tube 7 of giving vent to anger, the one end of diffusing tube 7 of giving vent to anger is closed by described second partition 5, and the surrounding between the first dividing plate 4 and second partition 5 is provided with many intervalves 8.
By above setting, from engine exhaust pipe discharge noise, enter through air inlet diffusing tube 6, noise at air inlet diffusing tube 6, by the little vent on air inlet diffusing tube 6 vibration friction stress release treatment, realize one-level expansion; Noise enters in many intervalves 8 again, and noise, when through intervalve 8, due to by the breeder tube vibration rubbing action on intervalve 8, turn eliminates part high-frequency noise, realizes secondary expansion; Noise enters diffusing tube 7 of giving vent to anger, and due to the vibration rubbing action of breeder tube of giving vent to anger on diffusing tube 7, turn eliminate part high frequency, realize three grades of expansions, last noise is discharged through diffusing tube 7 of giving vent to anger.
Claims (1)
1. the exhaust silencer except high frequency, it is characterized in that: be occluding with air inlet end cap respectively at the two ends of housing and end cap of giving vent to anger, first dividing plate and second partition are by enclosure interior interval, in the intermediate portion of air inlet end cap and the first dividing plate, air inlet diffusing tube is installed, one end of air inlet diffusing tube is closed by described first dividing plate, in the intermediate portion of give vent to anger end cap and second partition, diffusing tube of giving vent to anger is installed, the one end of diffusing tube of giving vent to anger is closed by described second partition, the surrounding between the first dividing plate and second partition is provided with many intervalves.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420585269.6U CN204175373U (en) | 2014-10-11 | 2014-10-11 | A kind of exhaust silencer except high frequency |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420585269.6U CN204175373U (en) | 2014-10-11 | 2014-10-11 | A kind of exhaust silencer except high frequency |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204175373U true CN204175373U (en) | 2015-02-25 |
Family
ID=52564190
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420585269.6U Expired - Fee Related CN204175373U (en) | 2014-10-11 | 2014-10-11 | A kind of exhaust silencer except high frequency |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204175373U (en) |
-
2014
- 2014-10-11 CN CN201420585269.6U patent/CN204175373U/en not_active Expired - Fee Related
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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 |
Granted publication date: 20150225 Termination date: 20171011 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |