CN204175369U - A kind of impedance complex exhaust silencer - Google Patents
A kind of impedance complex exhaust silencer Download PDFInfo
- Publication number
- CN204175369U CN204175369U CN201420585098.7U CN201420585098U CN204175369U CN 204175369 U CN204175369 U CN 204175369U CN 201420585098 U CN201420585098 U CN 201420585098U CN 204175369 U CN204175369 U CN 204175369U
- Authority
- CN
- China
- Prior art keywords
- diffusing tube
- anger
- air inlet
- intervalve
- giving vent
- 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
Landscapes
- Exhaust Silencers (AREA)
Abstract
The utility model discloses a kind of impedance complex exhaust silencer, it is characterized in that, front cover and rear end cover are engaged in the two ends of housing respectively, its inside is divided into three parts by the dividing plate I and the dividing plate II that are located at enclosure interior, air inlet diffusing tube is located at the upside of enclosure interior, diffusing tube of giving vent to anger is located on the downside of enclosure interior, the intermediate portion that intervalve is located at air inlet diffusing tube and gives vent to anger between diffusing tube, the top, one end of described intervalve and the bottom of air inlet diffusing tube connect, the other end bottom of intervalve connects with the top of diffusing tube of giving vent to anger, sound-absorbing material is filled in air inlet diffusing tube and the space of giving vent to anger between diffusing tube and inner walls.By above setting, the utility model makes full use of the reduction of perforated pipe resistance and the vibration friction noise elimination effect of perforated pipe, and effectively can remove the noise of high, medium and low all frequency bands, and back pressure is lower, soundproof effect is better.
Description
Technical field
The utility model relates to engine exhaust muffler, is a kind of impedance complex exhaust silencer specifically.
Background technique
Silencing apparatus is a kind of device stoping sound transmission and allow air-flow to pass through, and is the important measures eliminating air power noise.At present, existing exhaust silencer
The resistance exhaust silencer structure of main employing pipeline section expansion and cross-sectional constriction, although in can effectively removing, low-frequency noise, effect be there is no to the high-frequency noise of removing, and airspeed is large, muffler back pressure is high, causes soundproof effect also poor.
Summary of the invention
The purpose of this utility model is to provide and a kind ofly can removes all frequency band noises, back pressure is low and soundproof effect is good impedance complex exhaust silencer.
For reaching above object, front cover of the present utility model and rear end cover are engaged in the two ends of housing respectively, its inside is divided into three parts by the dividing plate I and the dividing plate II that are located at enclosure interior, air inlet diffusing tube is located at the upside of enclosure interior, described air inlet diffusing tube one end air inlet, the other end closes, diffusing tube of giving vent to anger is located on the downside of enclosure interior, give vent to anger in described diffusing tube one end of giving vent to anger, the other end closes, the intermediate portion that intervalve is located at air inlet diffusing tube and gives vent to anger between diffusing tube, the top, one end of described intervalve and the bottom of air inlet diffusing tube connect, the other end bottom of intervalve connects with the top of diffusing tube of giving vent to anger, sound-absorbing material is filled in air inlet diffusing tube and the space of giving vent to anger between diffusing tube and inner walls.
By above setting, the utility model makes full use of the reduction of perforated pipe resistance and the vibration friction noise elimination effect of perforated pipe, and effectively can remove the noise of high, medium and low all frequency bands, and back pressure is lower, soundproof effect is better.
Accompanying drawing explanation
Now by reference to the accompanying drawings the utility model is described further.
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the A-A sectional view of Fig. 1.
In figure: 1, front cover, 2, rear end cover, 3, housing, 4, dividing plate I, 5, dividing plate II, 6, air inlet diffusing tube, 7, intervalve, 8, diffusing tube of giving vent to anger, 9, sound-absorbing material.
Embodiment
As Fig. 1, shown in 2, front cover 1 of the present utility model and rear end cover 2 are engaged in the two ends of housing 3 respectively, its inside is divided into three parts by the dividing plate I 4 and the dividing plate II 5 that are located at housing 3 inside, air inlet diffusing tube 6 is located at the upside of housing 3 inside, described air inlet diffusing tube 6 one end air inlet, the other end closes, diffusing tube 8 of giving vent to anger is located at housing 3 inner lower, give vent to anger in described diffusing tube 8 one end of giving vent to anger, the other end closes, the intermediate portion that intervalve 7 is located at air inlet diffusing tube 6 and gives vent to anger between diffusing tube 8, the top, one end of described intervalve 7 and the bottom of air inlet diffusing tube 6 connect, the other end bottom of intervalve 7 connects with the top of diffusing tube 8 of giving vent to anger, sound-absorbing material 9 is filled in air inlet diffusing tube 6 and in the space of giving vent to anger between diffusing tube 8 and housing 3 inwall.
By above setting, noise of the present utility model is entered through air inlet diffusing tube 3 from engine exhaust pipe, eliminate partial noise, simultaneously due to the vibration friction of the vent in suction tude 3 and the sound absorption of sound-absorbing material 9, eliminate part high-frequency noise, noise to enter from air inlet diffusing tube 3 through intervalve 7 gives vent to anger the process of diffusing tube 8, due to the dilating effect of the expanded bore on intervalve, eliminates partial noise.The vibration friction of noise by the vent of the vent on diffusing tube 8 of giving vent to anger and the sound absorption of sound-absorbing material 9, eliminate partial noise, reach the object of noise elimination.
Claims (1)
1. an impedance complex exhaust silencer, it is characterized in that: front cover and rear end cover are engaged in the two ends of housing respectively, its inside is divided into three parts by the dividing plate I and the dividing plate II that are located at enclosure interior, air inlet diffusing tube is located at the upside of enclosure interior, described air inlet diffusing tube one end air inlet, the other end closes, diffusing tube of giving vent to anger is located on the downside of enclosure interior, give vent to anger in described diffusing tube one end of giving vent to anger, the other end closes, the intermediate portion that intervalve is located at air inlet diffusing tube and gives vent to anger between diffusing tube, the top, one end of described intervalve and the bottom of air inlet diffusing tube connect, the other end bottom of intervalve connects with the top of diffusing tube of giving vent to anger, sound-absorbing material is filled in air inlet diffusing tube and the space of giving vent to anger between diffusing tube and inner walls.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420585098.7U CN204175369U (en) | 2014-10-11 | 2014-10-11 | A kind of impedance complex exhaust silencer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420585098.7U CN204175369U (en) | 2014-10-11 | 2014-10-11 | A kind of impedance complex exhaust silencer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204175369U true CN204175369U (en) | 2015-02-25 |
Family
ID=52564186
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420585098.7U Expired - Fee Related CN204175369U (en) | 2014-10-11 | 2014-10-11 | A kind of impedance complex exhaust silencer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204175369U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112696551A (en) * | 2019-10-23 | 2021-04-23 | 株式会社普利司通 | Silencer with improved structure |
-
2014
- 2014-10-11 CN CN201420585098.7U patent/CN204175369U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112696551A (en) * | 2019-10-23 | 2021-04-23 | 株式会社普利司通 | Silencer with improved structure |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204163804U (en) | Automobile exhaust pipe baffler | |
| CN104265409A (en) | High-frequency-removal exhaust silencer | |
| CN204175369U (en) | A kind of impedance complex exhaust silencer | |
| CN104265413A (en) | Impedance complex silencer for tractor | |
| CN201461033U (en) | Special air exhaust silencer for eliminating high-frequency whistle of engine | |
| CN201461037U (en) | Impedance composite exhaust muffler for miniature automobile | |
| CN204175367U (en) | A kind of special exhaust silencer except high-frequency noise | |
| CN204175383U (en) | A kind of light-duty excavator silencing apparatus | |
| CN203978559U (en) | A kind of Simple muffler | |
| CN203189078U (en) | Muffler for engineering machine | |
| CN104265415A (en) | Impedance composite tractor muffler | |
| CN104265417A (en) | Impedance composite exhaust silencer | |
| CN204175364U (en) | A kind of circular automobile exhaust gas Sound Attenuator | |
| CN104265411A (en) | Novel exhaust silencer special for removing high-frequency noise | |
| CN204175373U (en) | A kind of exhaust silencer except high frequency | |
| CN204175380U (en) | Used with tractor impedance composite muffler | |
| CN204175372U (en) | The novel special exhaust silencer except high-frequency noise | |
| CN204175379U (en) | The low back pressure impedance complex exhaust silencer of engineering truck | |
| CN204175386U (en) | A kind of engineering machinery exhaust silencer | |
| CN204175376U (en) | A kind of low back pressure impedance complex exhaust silencer | |
| CN204716338U (en) | Medium and low frequency mobile muffler | |
| CN204175378U (en) | A kind of silencing apparatus of the excavator low-frequency noise that disappears | |
| CN204175385U (en) | A kind of power generating equipment removes high frequency silencing apparatus with special | |
| CN204175398U (en) | A kind of power generating equipment Special-purpose silencer | |
| CN204175377U (en) | Used with tractor impedance composite muffler |
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 |