CN104314642A - Resonant exhausting silencer - Google Patents
Resonant exhausting silencer Download PDFInfo
- Publication number
- CN104314642A CN104314642A CN201410532574.3A CN201410532574A CN104314642A CN 104314642 A CN104314642 A CN 104314642A CN 201410532574 A CN201410532574 A CN 201410532574A CN 104314642 A CN104314642 A CN 104314642A
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- cavity
- diffusing tube
- vent
- air inlet
- anger
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- Exhaust Silencers (AREA)
Abstract
The invention discloses a resonant exhausting silencer, comprising a shell body, end covers, baffle plates, an air inlet diffusion tube, an air outlet diffusion tube and intermediate tubes, wherein two ends of the shell body are respectively provided with the sealed end cover; three baffle plates are respectively arranged in the shell body; the shell body is internally divided into a first cavity, a second cavity, a third cavity and a fourth cavity through the three baffle plates; the air inlet diffusion tube respectively penetrates through the end cover and the baffle plate at two sides of the first cavity, so that the second cavity is communicated with the outside world; ventilation holes are formed in the side wall of the air inlet diffusion tube; the air outlet diffusion tube respectively penetrates through the end cover and the baffle plate at two sides of the fourth cavity, so that the third cavity is communicated with the outside world; ventilation holes are formed in the side wall of the air outlet diffusion tube, so that the third cavity is communicated with the fourth cavity through the ventilation holes of the air outlet diffusion tube; two intermediate tubes, which penetrate through the three baffle plates, are arranged in the shell body. According to the resonant exhausting silencer, expanded silencing and resonant silencing are realized, and a better silencing effect is achieved.
Description
Technical field
The present invention relates to a kind of silencing apparatus, is a kind of resonance exhaust silencer specifically.
Background technique
At present, existing exhaust silencer 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, but the contradiction that this silencing apparatus exists at present is when using on heavy-duty car, because size is restricted, silencing apparatus diameter can not be too large, for obtaining larger divergence ratio, higher sound deadening capacity, outlet pipe and interpolation pipe diameter can not be too large, thus cause airspeed high, muffler back pressure is high, and cause silencing apparatus soundproof effect also poor because airspeed is high.
Summary of the invention
Object of the present invention provides a kind of resonance exhaust silencer utilizing multi-cavity.
For achieving the above object, technological scheme of the present invention is: a kind of resonance exhaust silencer, comprise housing, end cap, dividing plate, air inlet diffusing tube, to give vent to anger diffusing tube, intervalve, described housing two ends are respectively arranged with the end cap of sealing, three pieces of dividing plates are respectively arranged with in described enclosure interior, enclosure interior is separated into the first cavity by three pieces of dividing plates respectively, second cavity, 3rd cavity and the 4th cavity, described air inlet diffusing tube runs through end cap and the dividing plate of the first cavity both sides respectively, second cavity is in communication with the outside, the sidewall of described air inlet diffusing tube is provided with vent, first cavity is communicated with by the vent on air inlet diffusing tube with the second cavity, described diffusing tube of giving vent to anger runs through end cap and the dividing plate of the 4th cavity both sides respectively, 3rd cavity is in communication with the outside, the sidewall of described diffusing tube of giving vent to anger is provided with vent, 3rd cavity is communicated with by the vent of giving vent to anger on diffusing tube with the 4th cavity, enclosure interior is provided with the intervalve that two run through three pieces of dividing plates, first cavity is communicated with the 4th cavity by described intervalve.
As preferably, the dividing plate between described second cavity and the 3rd cavity is greater than the distance of diffusing tube of giving vent to anger to the distance of air inlet diffusing tube, described in the vent of giving vent to anger on diffusing tube more than the vent on air inlet diffusing tube.
Owing to adopting technique scheme, air inlet diffusing tube is communicated with the first cavity by the vent on its sidewall, the first cavity is made to form resonance, reduce noise, noise is communicated with the first cavity and the 4th cavity by intervalve again, noise is discharged through diffusing tube of giving vent to anger in a 4th cavity part, and another part and dividing plate form resonance and be eliminated; Dividing plate between second cavity and the 3rd cavity is greater than the distance of diffusing tube of giving vent to anger to the distance of air inlet diffusing tube, is conducive to so fully alleviating air-flow, reduces noise; The vent of giving vent to anger on diffusing tube, more than the vent on air inlet diffusing tube, can make the air-flow through each cavity fully discharge, ensure that the stability of each cavity air pressure; Realize expansion to eliminate the noise and resonant silencing, obtain better soundproof effect.
Accompanying drawing explanation
Now the present invention will be further described by reference to the accompanying drawings.
Fig. 1 is structural representation of the present invention.
Fig. 2 is A-A face of the present invention sectional structure schematic diagram.
In figure: 1, housing, 2, end cap, 3, dividing plate, 4, air inlet diffusing tube, 5, diffusing tube of giving vent to anger, 6, intervalve, the 7, first cavity, the 8, second cavity, the 9, the 3rd cavity, the 10, the 4th cavity, 11, vent.
Embodiment
As Fig. 1, shown in 2, one resonance exhaust silencer of the present invention, comprise housing 1, end cap 2, dividing plate 3, air inlet diffusing tube 4, to give vent to anger diffusing tube 5, intervalve 6, housing 1 two ends are respectively arranged with the end cap 2 of sealing, three pieces of dividing plates 3 are respectively arranged with in housing 1 inside, housing 1 inside is separated into the first cavity 7 by three pieces of dividing plates 3 respectively, second cavity 8, 3rd cavity 9 and the 4th cavity 10, air inlet diffusing tube 3 runs through end cap 2 and the dividing plate 3 of the first cavity 7 both sides respectively, second cavity 8 is in communication with the outside, the sidewall of air inlet diffusing tube 4 is provided with vent 11, first cavity 7 is communicated with by the vent 11 on air inlet diffusing tube 4 with the second cavity 8, diffusing tube 5 of giving vent to anger runs through end cap 2 and the dividing plate 3 of the 4th cavity 10 both sides respectively, 3rd cavity 9 is in communication with the outside, the sidewall of diffusing tube 5 of giving vent to anger is provided with vent 11, 3rd cavity 9 is communicated with by the vent 11 of giving vent to anger on diffusing tube 5 with the 4th cavity 10, housing 1 inside is provided with the intervalve 6 that two run through three pieces of dividing plates 3, first cavity 7 is communicated with the 4th cavity 10 by intervalve 6, dividing plate 3 between second cavity 8 and the 3rd cavity 7 is greater than the distance of diffusing tube 5 of giving vent to anger to the distance of air inlet diffusing tube 4, the vent 11 of giving vent to anger on diffusing tube 5 is more than the vent 11 on air inlet diffusing tube 4.
Working principle of the present invention: the gas noise that engine exhaust pipe is discharged enters the second cavity 8 through air inlet diffusing tube 4, realize one-level expansion, eliminate partial noise, simultaneously due to the vibration friction of the vent 11 on air inlet diffusing tube 2 and the resonance of the first cavity 7, eliminate partial noise, noise enters the 4th cavity 10 from the first cavity 7 through intervalve 6, when through the 4th cavity 10, by the vibration friction of the vent 11 on diffusing tube 5 of giving vent to anger and the expansion of the 3rd cavity, stress release treatment also discharges housing 1, realizes expansion and eliminates the noise and resonant silencing.
Claims (2)
1. a resonance exhaust silencer, comprise housing, end cap, dividing plate, air inlet diffusing tube, to give vent to anger diffusing tube, intervalve, it is characterized in that: described housing two ends are respectively arranged with the end cap of sealing, three pieces of dividing plates are respectively arranged with in described enclosure interior, enclosure interior is separated into the first cavity by three pieces of dividing plates respectively, second cavity, 3rd cavity and the 4th cavity, described air inlet diffusing tube runs through end cap and the dividing plate of the first cavity both sides respectively, second cavity is in communication with the outside, the sidewall of described air inlet diffusing tube is provided with vent, first cavity is communicated with by the vent on air inlet diffusing tube with the second cavity, described diffusing tube of giving vent to anger runs through end cap and the dividing plate of the 4th cavity both sides respectively, 3rd cavity is in communication with the outside, the sidewall of described diffusing tube of giving vent to anger is provided with vent, 3rd cavity is communicated with by the vent of giving vent to anger on diffusing tube with the 4th cavity, enclosure interior is provided with the intervalve that two run through three pieces of dividing plates, first cavity is communicated with the 4th cavity by described intervalve.
2. resonance exhaust silencer according to claim 1, it is characterized in that: the dividing plate between described second cavity and the 3rd cavity is greater than the distance of diffusing tube of giving vent to anger to the distance of air inlet diffusing tube, described in the vent of giving vent to anger on diffusing tube more than the vent on air inlet diffusing tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410532574.3A CN104314642A (en) | 2014-10-11 | 2014-10-11 | Resonant exhausting silencer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410532574.3A CN104314642A (en) | 2014-10-11 | 2014-10-11 | Resonant exhausting silencer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104314642A true CN104314642A (en) | 2015-01-28 |
Family
ID=52369935
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410532574.3A Pending CN104314642A (en) | 2014-10-11 | 2014-10-11 | Resonant exhausting silencer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104314642A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104776601A (en) * | 2015-04-03 | 2015-07-15 | 芜湖美的厨卫电器制造有限公司 | Smoke exhaust system for gas water heater and gas water heater with smoke exhaust system |
-
2014
- 2014-10-11 CN CN201410532574.3A patent/CN104314642A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104776601A (en) * | 2015-04-03 | 2015-07-15 | 芜湖美的厨卫电器制造有限公司 | Smoke exhaust system for gas water heater and gas water heater with smoke exhaust system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150128 |
|
| WD01 | Invention patent application deemed withdrawn after publication |