CN203783689U - Air leakage noise silencer for supercharged engine of automobile - Google Patents
Air leakage noise silencer for supercharged engine of automobile Download PDFInfo
- Publication number
- CN203783689U CN203783689U CN201420050569.4U CN201420050569U CN203783689U CN 203783689 U CN203783689 U CN 203783689U CN 201420050569 U CN201420050569 U CN 201420050569U CN 203783689 U CN203783689 U CN 203783689U
- Authority
- CN
- China
- Prior art keywords
- noise silencer
- resonant cavity
- joint pipe
- sealed joint
- air leakage
- 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
- 230000003584 silencer Effects 0.000 title claims abstract description 16
- 230000030279 gene silencing Effects 0.000 claims abstract description 26
- 238000005452 bending Methods 0.000 claims description 3
- 238000005192 partition Methods 0.000 abstract 4
- 238000010586 diagram Methods 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000011946 reduction process Methods 0.000 description 1
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- Exhaust Silencers (AREA)
Abstract
The utility model relates to the field of automobile parts, in particular to an air leakage noise silencer for a supercharged engine of an automobile. The air leakage noise silencer comprises silencing partition boards and a sealed connecting pipe. The air leakage noise silencer is characterized in that an air inlet is arranged in one end of the sealed connecting pipe, an air outlet is arranged in the other end of the sealed connecting pipe, the two opposite silencing partition boards are nested in the sealed connecting pipe, a plurality of holes are arranged in each silencing partition board, resonant cavity walls are arranged at the periphery of each hole, the resonant cavity walls are arranged on the outer surfaces of the silencing partition boards, and the resonant cavity walls and the sealed connecting pipe define a plurality of resonant cavities. In comparison with the prior art, the air leakage noise silencer has the characteristics of novel, simple and practical structure, convenience and easiness in use, low cost and high efficiency, and capability of effectively eliminating the air leakage noise of a turbocharger through integrating a plurality of independent resonant cavities.
Description
Technical field
The utility model relates to auto parts and components field, definite a kind of automobile turbo engine noise silencer that loses heart that says.
Background technique
Turbogenerator is when closure turns down or closes, because turbine also will work on, pressurized air is finally discharged into atmosphere from air filter suction port, thereby produced disappointing sound, and the sound that loses heart belongs to high pressure draught, make the frequency noise scope of generation very wide, generally at 1000Hz～3200Hz, be difficult to use single resonant cavity to carry out noise reduction process to medium-high frequency and the very wide noise of frequency band.
Summary of the invention
The utility model, for overcoming the deficiencies in the prior art, designs a kind of energy of sound wave when crest and trough of can effectively decaying, thereby reduces the disappointing noise silencer of automobile turbo engine of noise.
For achieving the above object, design the disappointing noise silencer of a kind of automobile turbo engine, comprise silencing board, sealed joint pipe, it is characterized in that: described sealed joint pipe one end is provided with suction port, the other end of sealed joint pipe is provided with air outlet, sealed joint pipe is nested with two relative silencing boards, described silencing board is provided with several holes, the surrounding in described hole is provided with resonant cavity wall, described resonant cavity wall is located on the outer surface of silencing board, and resonant cavity wall and sealed joint pipe surround several resonance chamber.
Described some holes are provided with 24, and the diameter in hole is 3 millimeters, and described resonance chamber is provided with 24.
The equal bending of described silencing board and sealed joint pipe is 87.2 °.
The diameter of described air outlet is 57 millimeters, and the diameter of described suction port is 70 millimeters.
The internal surface precision-fit of the top of described resonant cavity wall and sealed joint pipe.
The utility model compared with the existing technology, has novel structure, simple, practical, convenient to use feature; With low cost, efficiency is high; By integrated a plurality of independently resonance chamber, can effectively eliminate the disappointing noise of turbosupercharger.
Accompanying drawing explanation
Fig. 1 is schematic diagram of the present utility model.
Fig. 2 is that A-A of the present utility model is to view.
Fig. 3 is plan view of the present utility model.
Fig. 4 is the front view of silencing board of the present utility model.
Fig. 5 is the rear view of silencing board of the present utility model.
Fig. 6 is silencing board constitutional diagram of the present utility model.
Referring to Fig. 1～Fig. 6, wherein, the 1st, silencing board, the 2nd, sealed joint pipe, the 3rd, resonance chamber, the 4th, hole, the 5th, resonant cavity wall, the 6th, suction port, the 7th, air outlet.
Embodiment
Embodiment one
With reference to the accompanying drawings the utility model is described further below.
As Fig. 1～Fig. 6, shown in, a kind of automobile turbo engine noise silencer that loses heart, comprises silencing board 1, sealed joint pipe 2, resonance chamber 3, hole 4, resonant cavity wall 5, suction port 6, air outlet 7.Described sealed joint pipe 2 one end are provided with suction port 6, the other end of sealed joint pipe 2 is provided with air outlet 7, sealed joint pipe 2 has been nested with two silencing boards 1, described silencing board 1 is provided with several holes 4, the surrounding in described hole 4 is provided with resonant cavity wall 5, described resonant cavity wall 5 is located on the outer surface of silencing board 1, and resonant cavity wall 5 surrounds several resonance chamber 3 with sealed joint pipe 2.
According to take CF center frequency as target, every 50Hz, arrange that a resonance chamber 3 is corresponding with it, described resonant cavity wall 5 is divided into straight line resonant cavity wall and circular arc resonant cavity wall, straight line resonant cavity wall is divided into quarter by the outer surface of silencing board 1, circular arc resonant cavity wall is divided into six wide equal portions by the outer surface at silencing board 1 on basis of cutting apart at straight line resonant cavity wall, and the resonance chamber 3 so forming can reduce the very wide target noise of frequency band.
Described silencing board 1 and sealed joint pipe 2 can be that bend pipe can be also straight tube, can install according to the needs of diverse location, and the disappointing noise silencer of described automobile turbo engine need be arranged near automobile booster.
Described some holes 4 are provided with 24, and the diameter in hole 4 is 3 millimeters, and described resonance chamber 3 is provided with 24.Described silencing board 1 and the equal bending of sealed joint pipe 2 are 87.2 °.The diameter of described air outlet 7 is 57 millimeters, and the diameter of described suction port 6 is 70 millimeters.The diameter of suction port 6 and air outlet 7 can change with the diameter of automobile pipeline.The internal surface precision-fit of the top of described resonant cavity wall 5 and sealed joint pipe 2.
The parameter of described resonance chamber 3 with need the target of noise reduction corresponding,
wherein c is the velocity of propagation of sound in atmosphere, and S is the cross-section area of sealed joint pipe 2, and d is the diameter in hole 4, and t is the wall thickness in hole 4, and V is the volume of resonance chamber 3.
Claims (5)
1. the automobile turbo engine noise silencer that loses heart, comprise silencing board, sealed joint pipe, it is characterized in that: described sealed joint pipe (2) one end is provided with suction port (6), the other end of sealed joint pipe (2) is provided with air outlet (7), sealed joint pipe (2) is nested with two relative silencing boards (1), described silencing board (1) is provided with several holes (4), the surrounding in described hole (4) is provided with resonant cavity wall (5), described resonant cavity wall (5) is located on the outer surface of silencing board (1), resonant cavity wall (5) surrounds several resonance chamber (3) with sealed joint pipe (2).
2. the disappointing noise silencer of a kind of automobile turbo engine as claimed in claim 1, is characterized in that: described some holes (4) are provided with 24, and the diameter of hole (4) is 3 millimeters, and described resonance chamber (3) is provided with 24.
3. the disappointing noise silencer of a kind of automobile turbo engine as claimed in claim 1, is characterized in that: described silencing board (1) and sealed joint pipe (2) all bending are 87.2 °.
4. the disappointing noise silencer of a kind of automobile turbo engine as claimed in claim 1, is characterized in that: the diameter of described air outlet (7) is 57 millimeters, and the diameter of described suction port (6) is 70 millimeters.
5. the disappointing noise silencer of a kind of automobile turbo engine as claimed in claim 1, is characterized in that: the internal surface precision-fit of the top of described resonant cavity wall (5) and sealed joint pipe (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420050569.4U CN203783689U (en) | 2014-01-26 | 2014-01-26 | Air leakage noise silencer for supercharged engine of automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420050569.4U CN203783689U (en) | 2014-01-26 | 2014-01-26 | Air leakage noise silencer for supercharged engine of automobile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203783689U true CN203783689U (en) | 2014-08-20 |
Family
ID=51319886
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420050569.4U Expired - Fee Related CN203783689U (en) | 2014-01-26 | 2014-01-26 | Air leakage noise silencer for supercharged engine of automobile |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203783689U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104389677A (en) * | 2014-11-25 | 2015-03-04 | 浙江吉利汽车研究院有限公司 | Noise reduction structure of supercharger |
| CN105443285A (en) * | 2015-12-15 | 2016-03-30 | 恒勃控股股份有限公司 | Air leakage noise muffler for vehicle |
-
2014
- 2014-01-26 CN CN201420050569.4U patent/CN203783689U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104389677A (en) * | 2014-11-25 | 2015-03-04 | 浙江吉利汽车研究院有限公司 | Noise reduction structure of supercharger |
| CN105443285A (en) * | 2015-12-15 | 2016-03-30 | 恒勃控股股份有限公司 | Air leakage noise muffler for vehicle |
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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: 20140820 |