CN201461033U - Special air exhaust silencer for eliminating high-frequency whistle of engine - Google Patents
Special air exhaust silencer for eliminating high-frequency whistle of engine Download PDFInfo
- Publication number
- CN201461033U CN201461033U CN2009200311791U CN200920031179U CN201461033U CN 201461033 U CN201461033 U CN 201461033U CN 2009200311791 U CN2009200311791 U CN 2009200311791U CN 200920031179 U CN200920031179 U CN 200920031179U CN 201461033 U CN201461033 U CN 201461033U
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- CN
- China
- Prior art keywords
- dividing plate
- partition board
- pipe
- vents
- noise
- 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 special air exhaust silencer for eliminating high-frequency whistle of an engine. Two end caps are engaged at both ends of a case, an air inlet pipe with a plurality of vent holes is arranged between the end cap 1 and a partition board 2 at the air inlet end, a plurality of small vent holes are formed on the partition board 2, an inner insertion pipe with a plurality of vent holes is arranged between the partition board 2 and a partition board 4, an inner insertion pipe 5 and an inner insertion pipe 9 with a plurality vent holes are arranged between the partition board 4 and a partition board 6, and an air outlet pipe with a plurality of vent holes are arranged between the partition board 6 and a partition board 7. Through the arrangement, the utility model can perfectly eliminate the whistle of an engine pressure booster, and obtains good effect in the practical vehicle loading application.
Description
Technical field
The utility model belongs to engine exhaust muffler, particularly relate to a kind of utilize that the multilayer perforation structure forms be used to eliminate the whistle high frequency band silencing apparatus that engine supercharger blows out.
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 variation of abrupt change of cross-section place owing to acoustic reactance, some sound wave reflects back to sound source, and the not outlet by silencing apparatus, thereby reach the purpose of noise elimination.This resistance exhaust silencer centering, low-frequency noise noise elimination effect are better.And for high frequency noise, since adopt to high frequency noise the eliminate the noise effective perforation pipeline section and the negligible amounts of perforated plate, and the inner not layout resistive sound-absorbing material good to the high frequency noise acoustically effective, it is undesirable to the noise elimination effect of high frequency noise.
Summary of the invention
The purpose of this utility model be to provide a kind of in whole frequency range the high band effective anti-type exhaust silencer of eliminating the noise especially.
The technical solution of the utility model is: be occluding with two end caps at the housing two ends, three dividing plates are located on the shell cavity inwall, at inlet end, end cap 1 and the dividing plate 2 middle suction tude that are provided with a plurality of vents, suction tude one end opening, the other end is sealed by dividing plate 2, dividing plate 2 is provided with a plurality of little vents, be provided with interpolation pipe between dividing plate 2 and the dividing plate 4 with a plurality of vents, the sealing of interpolation pipe one end, the other end opening is provided with the end sealing of the interpolation pipe 5 that has a plurality of vents and interpolation pipe 9, two interpolation pipes between dividing plate 4 and the dividing plate 6, the other end opening, be provided with steam outlet pipe between dividing plate 6 and the end cap 7, the end sealing of steam outlet pipe, the other end opening with a plurality of vents.
By above setting, the utility model has kept resistance exhaust silencer centering, the effective advantage of low frequency noise noise elimination, and air communication cross repeatedly turn to and repeatedly vent to the noise elimination of high frequency, the engine supercharger whistle is well eliminated, in actual entrucking is used, obtained good effect.
Description of drawings
Now the utility model is described in further detail in conjunction with the accompanying drawings.
Fig. 1 is the utility model structural representation.
Fig. 2 is the A-A sectional view.
Fig. 3 is the B-B sectional view.
Fig. 4 is the C-C sectional view.
Among the figure 1, end cap 2, dividing plate 3, housing 4, dividing plate 5, interpolation pipe 6, dividing plate 7, end cap 8, steam outlet pipe 9, interpolation pipe 10 interpolation pipes 11, suction tude
Embodiment
As Fig. 1,2,3, shown in 4, the utility model is occluding with two end caps 1 and 7 at housing 3 two ends, three dividing plates 2,4 and 6 are located on the shell cavity inwall, at inlet end, end cap 1 and the dividing plate 2 middle suction tude 11 that are provided with a plurality of vents, suction tude 11 1 end openings, the other end is sealed by dividing plate 2, dividing plate 2 is provided with a plurality of little vents, be provided with interpolation pipe 10 between dividing plate 2 and the dividing plate 4, the sealing of interpolation pipe 10 1 ends, the other end opening with a plurality of vents, be provided with the interpolation pipe 5 and the interpolation pipe 9 that have a plurality of vents between dividing plate 4 and the dividing plate 6, the one end sealing of two interpolation pipes, the other end opening is provided with the steam outlet pipe 8 with a plurality of vents between dividing plate 6 and the end cap 7, the one end sealing of steam outlet pipe 8, the other end opening.
The noise that enters silencing apparatus from engine exhaust pipe is through suction tude 11, iris action through dividing plate 2, by the vent on the suction tude, enter first cavity, the expansion of realization one-level, eliminate the basic, normal, high audio-frequency noise of part, the part high-frequency noise is eliminated in the transformation of noise direction simultaneously and in the vibration friction of little vent.Noise is when entering second chamber from first chamber by the vent on the dividing plate 2, the expansion of the realization second level, the elimination part is low, in, high-frequency noise, simultaneously because the vibration friction of the vent of noise on dividing plate 2, eliminate the part high-frequency noise, noise is when the little vent on interpolation pipe 10 enters the 3rd chamber from second chamber, realize three grades of expansions, the elimination part is low, in, high-frequency noise, simultaneously because the transformation of noise direction and the vibration friction of the little vent annex on interpolation pipe 10, eliminate the part high-frequency noise, noise from the 3rd chamber when interpolation pipe 5 and 9 enters the 4th chamber, the expansion of realization level Four, it is low to eliminate part, in, high-frequency noise, simultaneously since the noise direction turn to and interpolation pipe 5 and 9 near the little vent vibration friction, eliminate the part high-frequency noise, noise is when the little vent on steam outlet pipe is discharged silencing apparatus from the 4th chamber and since noise turn to and little vent near friction, eliminate the part high-frequency noise again.
The utility model has kept resistance exhaust silencer centering, the effective advantage of low frequency silencing noise, and air-flow by repeatedly turn to and repeatedly passage to the noise elimination of high frequency, the engine supercharger whistle is well eliminated, in actual entrucking is used, obtained good effect.
Claims (1)
1. motor removes the special-purpose exhaust silencer of high frequency whistle, it is characterized in that: be occluding with two end caps at the housing two ends, three dividing plates are located on the shell cavity inwall, at inlet end, end cap (1) and the middle suction tude that is provided with a plurality of vents of dividing plate (2), suction tude one end opening, the other end is sealed by dividing plate (2), dividing plate (2) is provided with a plurality of little vents, be provided with interpolation pipe between dividing plate (2) and the dividing plate (4), the sealing of interpolation pipe one end, the other end opening with a plurality of vents, be provided with the interpolation pipe (5) and the interpolation pipe (9) that have a plurality of vents between dividing plate (4) and the dividing plate (6), the one end sealing of two interpolation pipes, the other end opening is provided with the steam outlet pipe with a plurality of vents between dividing plate (6) and the end cap (7), the one end sealing of steam outlet pipe, the other end opening.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200311791U CN201461033U (en) | 2009-08-14 | 2009-08-14 | Special air exhaust silencer for eliminating high-frequency whistle of engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200311791U CN201461033U (en) | 2009-08-14 | 2009-08-14 | Special air exhaust silencer for eliminating high-frequency whistle of engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201461033U true CN201461033U (en) | 2010-05-12 |
Family
ID=42388387
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009200311791U Expired - Fee Related CN201461033U (en) | 2009-08-14 | 2009-08-14 | Special air exhaust silencer for eliminating high-frequency whistle of engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201461033U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103603707A (en) * | 2013-11-20 | 2014-02-26 | 无锡新世动力机械有限公司 | Small-hole-injection micropunch-type denoising device |
| CN104594978A (en) * | 2015-01-29 | 2015-05-06 | 合肥汇凌汽车零部件有限公司 | Silencer matched with turbocharged engine |
| CN105569773A (en) * | 2015-11-05 | 2016-05-11 | 潘泉方 | Exhaust silencer of diesel engine or internal combustion engine |
-
2009
- 2009-08-14 CN CN2009200311791U patent/CN201461033U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103603707A (en) * | 2013-11-20 | 2014-02-26 | 无锡新世动力机械有限公司 | Small-hole-injection micropunch-type denoising device |
| CN103603707B (en) * | 2013-11-20 | 2015-10-28 | 无锡新世动力机械有限公司 | Micropore jet micropunch formula silencer |
| CN104594978A (en) * | 2015-01-29 | 2015-05-06 | 合肥汇凌汽车零部件有限公司 | Silencer matched with turbocharged engine |
| CN105569773A (en) * | 2015-11-05 | 2016-05-11 | 潘泉方 | Exhaust silencer of diesel engine or internal combustion engine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100512 Termination date: 20100814 |