CN215486223U - Compact type super-strong noise reduction silencer - Google Patents
Compact type super-strong noise reduction silencer Download PDFInfo
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- CN215486223U CN215486223U CN202121541251.2U CN202121541251U CN215486223U CN 215486223 U CN215486223 U CN 215486223U CN 202121541251 U CN202121541251 U CN 202121541251U CN 215486223 U CN215486223 U CN 215486223U
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Abstract
The utility model relates to a compact type super-strong noise reduction silencer, which comprises a shell, a front end cover, a rear end cover, an air inlet pipe, an air outlet pipe, a first partition plate and a second partition plate, wherein the front end cover is fixedly connected with the shell; the first partition plate and the second partition plate are sequentially arranged in the shell at intervals and divide the inner cavity of the shell into a first chamber, a second chamber and a third chamber; the intake pipe passes in proper order in front end housing and first baffle to the second cavity, the circumference equipartition that the intake pipe is located the pipeline section in the second cavity has the hole of eliminating noise, the outlet duct passes in rear end housing and the second baffle extends to the second cavity, the pipeline section equipartition that the outlet duct is located second cavity and third cavity is provided with the hole of eliminating noise, intake pipe and outlet duct are located the pipeline section in the second cavity and become the U-shaped, and the one end that the rear end housing was kept away from to the front end housing and the one end that the rear end housing was kept away from to the outlet duct are sealed to the intake pipe, and intake pipe and outlet duct are located the partial cross arrangement in the second cavity. The utility model has the advantages of improving the noise elimination effect, simplifying the structure and reducing the airflow resistance.
Description
Technical Field
The utility model relates to the technical field of silencers, in particular to a compact type super-strong noise reduction silencer.
Background
The exhaust silencer is a device for reducing noise generated by the engine during working, generally comprises a shell and a plurality of clapboards arranged in the inner cavity of the shell, the shell is also provided with an air inlet pipe and an air outlet pipe which are respectively communicated with the inner cavity of the shell, and the air inlet pipe and the air outlet pipe are provided with a plurality of through holes so as to ensure certain interference between sound waves and reduce the noise.
However, the existing muffler structure comprises a plurality of pipe fittings, which is inconvenient to overhaul, occupies a large space, has large airflow resistance, causes large power loss of an engine, and reduces the power performance of an automobile.
Disclosure of Invention
To the not enough of above-mentioned prior art, the technical problem that this patent application will solve provides one kind and improves noise cancelling effect, simplifies the structure, reduces the superstrong silencer of making an uproar that falls of compact of air current resistance.
In order to solve the technical problems, the utility model adopts the following technical scheme:
a compact type super-strong noise reduction silencer comprises a shell, a front end cover, a rear end cover, an air inlet pipe, an air outlet pipe, a first partition plate and a second partition plate; the shell is internally provided with a cavity, the shell is welded with the front end cover and the rear end cover, and the first partition plate and the second partition plate are sequentially arranged in the shell at intervals and divide the inner cavity of the shell into a first chamber, a second chamber and a third chamber;
the intake pipe passes front end housing and first baffle to the second cavity in proper order in, the pipeline section that the intake pipe is located the second cavity becomes the U-shaped, the circumference equipartition that the intake pipe is located the pipeline section in the second cavity has the hole of eliminating noise, the outlet duct passes in rear end housing and second baffle and extends to in the second cavity, the pipeline section equipartition that the outlet duct is located second cavity and third cavity is provided with the hole of eliminating noise, the pipeline section that the outlet duct is located the second cavity becomes the U-shaped, the one end that the rear end housing was kept away from to the front end housing and the one end that the rear end housing was kept away from to the outlet duct are sealed to the intake pipe, intake pipe and the partial cross arrangement that the outlet duct is located the second cavity.
Like this, the waste gas that the engine produced, discharge into the intake pipe through the exhaust pipe, the gas that gets into the intake pipe passes through the intake pipe transmission, be the bloop on the pipe section that is the U-shaped that is in the second cavity through the intake pipe and discharge gas to the second cavity, gas in the second cavity gets into the outlet duct through the bloop that the outlet duct is located the pipe section that is the U-shaped in the second cavity, discharge through the outlet duct, perhaps expand the amortization in getting into the third cavity through the outlet duct, then discharge through the outlet duct. The part that intake pipe and outlet duct are located the second cavity sets up alternately to all be provided with the amortization hole, the gas is convenient for flow, better reduction backpressure, make overall structure compacter, also improved exhaust effect simultaneously. Gas collides with the first partition plate, the second partition plate, the inner side wall of the shell, the air inlet pipe and the air outlet pipe in the second cavity and the third cavity, moves back and forth, weakens energy, offsets partial sound wave friction, and plays a role in noise reduction.
The first partition plate is fixedly provided with a cylindrical middle pipe, the open end of the middle pipe is positioned in the second chamber, and the closed end of the middle pipe is positioned in the first chamber. The first cavity is a sealed cavity, the first cavity is used as a resonant cavity, gas entering the second cavity can reach the first cavity through the middle pipe, the gas is matched with the gas in the sealed first cavity, the gas in the middle pipe vibrates back and forth, so that the middle pipe and the first cavity form a resonance structure, low-frequency noise is attenuated, and then the gas is discharged out of the silencer through the gas outlet pipe.
Wherein, the second baffle is evenly provided with through holes. The gas entering the third chamber can enter through the second partition plate, so that the gas pressure is prevented from being too high.
The air guide pipe is fixed on the second partition plate, two ends of the air guide pipe are located in the second cavity and the third cavity, and two ends of the guide pipe are communicated. The gas that the intake pipe got into, partly through the hole of eliminating the noise on the intake pipe get into in the second chamber, the gas that the energy is bigger in the second chamber gets into the air duct behind the intake pipe, with the rear end cap striking to bounce-back produces reverse same frequency sound wave, offsets each other between the sound wave, thereby cuts down the strongest sound wave, better falls the noise. Part of the sound waves with weak energy directly pass through the silencing holes and are discharged by the air outlet pipe.
And a pipe sleeve is arranged on the pipe section of the air outlet pipe positioned in the third chamber, and silencing cotton is filled in the pipe sleeve. The silencing performance of the silencer is improved, so that the silencer can be suitable for medium-high frequency noise.
The first partition plate and the second partition plate are both steel plates. The strength is improved.
In conclusion, the silencer has the advantages of improving the silencing effect, simplifying the structure and reducing the airflow resistance.
Drawings
Fig. 1 is a schematic structural diagram of a compact super-strong noise reduction muffler according to the present invention.
Fig. 2 is an isometric view of fig. 1 with the housing removed.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings. In the description of the present invention, it is to be understood that the orientation or positional relationship indicated by the orientation words such as "upper, lower" and "top, bottom" etc. are usually based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplicity of description, and in the case of not making a reverse description, these orientation words do not indicate and imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore, should not be interpreted as limiting the scope of the present invention; the terms "inner and outer" refer to the inner and outer relative to the profile of the respective component itself.
As shown in fig. 1-2, a compact ultra-strong noise reduction muffler comprises a shell 1, a front end cover 2, a rear end cover 3, an air inlet pipe 4, an air outlet pipe 5, a first partition plate 6 and a second partition plate 7; the shell is internally provided with a cavity, the shell is welded with the front end cover and the rear end cover, and the first partition plate and the second partition plate are sequentially arranged in the shell at intervals and divide the inner cavity of the shell into a first cavity 8, a second cavity 9 and a third cavity 10;
the intake pipe passes front end housing and first baffle to the second cavity in proper order in, the pipe section that the intake pipe is located the second cavity becomes the U-shaped, the circumference equipartition that the intake pipe is located the pipe section in the second cavity has noise elimination hole 11, the outlet duct passes in rear end housing and second baffle and extends to in the second cavity, the pipe section equipartition that the outlet duct is located second cavity and third cavity is provided with noise elimination hole, the pipe section that the outlet duct is located the second cavity becomes the U-shaped, the one end that the rear end housing was kept away from to the front end housing and the one end that the rear end housing was kept away from to the outlet duct are sealed in the intake pipe, intake pipe and outlet duct are located the partial cross arrangement in the second cavity.
Like this, the waste gas that the engine produced, discharge into the intake pipe through the exhaust pipe, the gas that gets into the intake pipe passes through the intake pipe transmission, be the bloop on the pipe section that is the U-shaped that is in the second cavity through the intake pipe and discharge gas to the second cavity, gas in the second cavity gets into the outlet duct through the bloop that the outlet duct is located the pipe section that is the U-shaped in the second cavity, discharge through the outlet duct, perhaps expand the amortization in getting into the third cavity through the outlet duct, then discharge through the outlet duct. The part that intake pipe and outlet duct are located the second cavity sets up alternately to all be provided with the amortization hole, the gas is convenient for flow, better reduction backpressure, make overall structure compacter, also improved exhaust effect simultaneously. Gas collides with the first partition plate, the second partition plate, the inner side wall of the shell, the air inlet pipe and the air outlet pipe in the second cavity and the third cavity, moves back and forth, weakens energy, offsets partial sound wave friction, and plays a role in noise reduction.
Wherein, the first baffle is fixedly provided with a cylindrical middle pipe 12, the open end of the middle pipe is positioned in the second chamber, and the closed end of the middle pipe is positioned in the first chamber. The first cavity is a sealed cavity, the first cavity is used as a resonant cavity, gas entering the second cavity can reach the first cavity through the middle pipe, the gas is matched with the gas in the sealed first cavity, the gas in the middle pipe vibrates back and forth, so that the middle pipe and the first cavity form a resonance structure, low-frequency noise is attenuated, and then the gas is discharged out of the silencer through the gas outlet pipe.
Wherein, the second baffle is evenly provided with through holes 13. The gas entering the third chamber can enter through the second partition plate, so that the gas pressure is prevented from being too high.
Wherein, be fixed with air duct 14 on the second baffle, the both ends of air duct are located second cavity and third cavity indoor, the both ends of air duct link up the setting. The gas that the intake pipe got into, partly through the hole of eliminating the noise on the intake pipe get into in the second chamber, the gas that the energy is bigger in the second chamber gets into the air duct behind the intake pipe, with the rear end cap striking to bounce-back produces reverse same frequency sound wave, offsets each other between the sound wave, thereby cuts down the strongest sound wave, better falls the noise. Part of the sound waves with weak energy directly pass through the silencing holes and are discharged by the air outlet pipe.
And a pipe sleeve (not shown) is arranged on the pipe section of the air outlet pipe positioned in the third chamber, and silencing cotton is filled in the pipe sleeve. The silencing performance of the silencer is improved, so that the silencer can be suitable for medium-high frequency noise.
The first partition plate and the second partition plate are both steel plates. The strength is improved.
The principle is as follows:
the waste gas that the engine produced, discharge into the intake pipe through the exhaust pipe, the gaseous transmission of intake pipe is passed through to the gas that gets into the intake pipe, be located the bloop on the pipe section that is the U-shaped in the second cavity through the intake pipe and discharge gas to the second cavity, gaseous bloop that is the U-shaped in the pipe section that the outlet duct is located in the second cavity through the outlet duct gets into the outlet duct, discharge through the outlet duct, perhaps expand the amortization in getting into the third cavity through the outlet duct, then discharge through the outlet duct again. The part that intake pipe and outlet duct are located the second cavity sets up alternately to all be provided with the amortization hole, the gas is convenient for flow, better reduction backpressure, make overall structure compacter, also improved exhaust effect simultaneously. Gas collides with the first partition plate, the second partition plate, the inner side wall of the shell, the air inlet pipe and the air outlet pipe in the second cavity and the third cavity, moves back and forth, weakens energy, offsets partial sound wave friction, and plays a role in noise reduction.
Finally, it should be noted that: various modifications and alterations of this invention may be made by those skilled in the art without departing from the spirit and scope of this invention. Thus, it is intended that the present invention cover the modifications and variations of this invention provided they come within the scope of the appended claims and their equivalents.
Claims (6)
1. A compact type super-strong noise reduction silencer is characterized by comprising a shell, a front end cover, a rear end cover, an air inlet pipe, an air outlet pipe, a first partition plate and a second partition plate; the shell is internally provided with a cavity, the shell is welded with the front end cover and the rear end cover, and the first partition plate and the second partition plate are sequentially arranged in the shell at intervals and divide the inner cavity of the shell into a first chamber, a second chamber and a third chamber;
the intake pipe passes front end housing and first baffle to the second cavity in proper order in, the pipeline section that the intake pipe is located the second cavity becomes the U-shaped, the circumference equipartition that the intake pipe is located the pipeline section in the second cavity has the hole of eliminating noise, the outlet duct passes in rear end housing and second baffle and extends to in the second cavity, the pipeline section equipartition that the outlet duct is located second cavity and third cavity is provided with the hole of eliminating noise, the pipeline section that the outlet duct is located the second cavity becomes the U-shaped, the one end that the rear end housing was kept away from to the front end housing and the one end that the rear end housing was kept away from to the outlet duct are sealed to the intake pipe, intake pipe and the partial cross arrangement that the outlet duct is located the second cavity.
2. The muffler of claim 1, wherein the first partition plate is fixedly installed with a cylindrical middle tube, an open end of the middle tube is located in the second chamber, and a closed end of the middle tube is located in the first chamber.
3. The compact ultra-strong noise reduction muffler according to claim 2, wherein the second partition plate is uniformly provided with through holes.
4. The compact ultra-strong noise reduction muffler according to claim 1, wherein the second partition plate is fixed with an air duct, two ends of the air duct are located in the second chamber and the third chamber, and two ends of the air duct are arranged in a penetrating manner.
5. The compact ultra-strong noise reduction muffler according to claim 1, wherein the pipe section of the air outlet pipe located in the third chamber is provided with a pipe sleeve, and the pipe sleeve is filled with noise reduction cotton.
6. The compact ultra-strong noise reduction muffler according to claim 1, wherein the first partition plate and the second partition plate are both steel plates.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121541251.2U CN215486223U (en) | 2021-07-07 | 2021-07-07 | Compact type super-strong noise reduction silencer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121541251.2U CN215486223U (en) | 2021-07-07 | 2021-07-07 | Compact type super-strong noise reduction silencer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215486223U true CN215486223U (en) | 2022-01-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121541251.2U Active CN215486223U (en) | 2021-07-07 | 2021-07-07 | Compact type super-strong noise reduction silencer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215486223U (en) |
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2021
- 2021-07-07 CN CN202121541251.2U patent/CN215486223U/en active Active
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