CN204703985U - Silencing apparatus - Google Patents
Silencing apparatus Download PDFInfo
- Publication number
- CN204703985U CN204703985U CN201520401005.5U CN201520401005U CN204703985U CN 204703985 U CN204703985 U CN 204703985U CN 201520401005 U CN201520401005 U CN 201520401005U CN 204703985 U CN204703985 U CN 204703985U
- Authority
- CN
- China
- Prior art keywords
- housing
- outlet pipe
- suction tude
- hush tube
- dividing plate
- 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 provides a kind of silencing apparatus, comprises housing, suction tude, outlet pipe and hush tube; Described housing is tubular, and inwall is designed to the perforated pipe of through hole, is provided with sound-absorbing material between inwall and outer wall, and end bracket enclosed is passed through at housing two ends; One end of described suction tude, outlet pipe is vertically plugged in enclosure interior; Described hush tube is horizontally placed on housing central section by dividing plate, and described hush tube and dividing plate are between suction tude, outlet pipe, and dividing plate external diameter is identical with housing inner diameter, dividing plate are provided with the through hole for fixing hush tube.Compared with prior art, the utility model adopts the design of impedance complex formula, and housing, end cap and dividing plate form three-cavity structure, and noise reduction is obvious, can not produce large exhaust resistance simultaneously, little to the power loss of motor; Manufacture cost is lower simultaneously, and long service life, can be widely used in silencing case supporting.
Description
Technical field
The utility model relates to a kind of silencing case engine exhaust system silencing apparatus.
Background technique
Silencing apparatus is mounted in after the outlet pipe that is connected with motor, for reducing the device of engine exhaust noise.The anti-formula silencing apparatus of many employings on current silencing case, anti-formula silencing apparatus passes through sudden change place of acoustic characteristic in pipeline by part acoustic reflection echogenicity direction, to reach the silencing apparatus of noise elimination object.This kind of silencing apparatus one side noise reduction is not too obvious, can produce larger exhaust resistance on the other hand, thus cause the power loss of motor larger.
Summary of the invention
Goal of the invention of the present utility model is the above-mentioned deficiency overcoming prior art, and provides a kind of higher acoustical absorptivity, silencing apparatus than the more high output of existing silencing apparatus.
The technical solution of the utility model comprises housing, suction tude, outlet pipe and hush tube; Described housing is tubular, and inwall is designed to the perforated pipe of through hole, is provided with sound-absorbing material between inwall and outer wall, and end bracket enclosed is passed through at housing two ends; One end of described suction tude, outlet pipe is vertically plugged in enclosure interior; Described hush tube is horizontally placed on housing central section by dividing plate, and described hush tube and dividing plate are between suction tude, outlet pipe, and dividing plate external diameter is identical with housing inner diameter, dividing plate are provided with the through hole for fixing hush tube.
The length that suction tude described in the utility model and outlet pipe go deep into housing equals inner walls diameter, and suction tude and outlet pipe go deep into being provided with blanking cover bottom shell one end, and suction tude and outlet pipe go deep into housing parts and be provided with the different through hole of diameter.
Suction tude described in the utility model correspondence parallel with outlet pipe be arranged on housing two ends.
Hush tube described in the utility model is more than one or one, and every root hush tube is parallel to each other.
Hush tube tubular body described in the utility model is provided with blanking cover.
Hush tube tube wall described in the utility model is provided with the different through hole of diameter.
Sound-absorbing material described in the utility model is that the ultra-fine fibre glass that acoustic absorptivity is higher is cotton.
Suction tude described in the utility model, outlet pipe and hush tube are cylindrical metal tube.
Compared with prior art, the utility model adopts the design of impedance complex formula, and housing, end cap and dividing plate form three-cavity structure, and noise reduction is obvious, can not produce large exhaust resistance simultaneously, little to the power loss of motor; Manufacture cost is lower simultaneously, and long service life, can be widely used in silencing case supporting.
Accompanying drawing explanation
The embodiment provided below in conjunction with accompanying drawing further illustrates the utility model.
Fig. 1 is structural representation of the present utility model.
Embodiment
In Fig. 1, housing 2, two end caps 1 and two dividing plates 7 form three-cavity structure; Suction tude 3, two hush tubes 6, two blanking covers 8 and outlet pipe 9 form exhaust passage; Sound-absorbing material 4 and perforated pipe 5 form sound absorber.Suction tude 3 is connected with the outlet pipe after motor, is connected with housing 2 and blanking cover 8 simultaneously; Two hush tubes 6 are connected with two blanking covers, 8, two dividing plates 7 respectively; Outlet pipe 9 is connected with housing 2 and blanking cover 8.Blanking cover 8 material 08AL, shape is as bowl-type, and effect connects suction tude 3 or outlet pipe 9 and housing 2, blocks air-flow, by interrupt and reflective sound wave is eliminated the noise.Fixing hush tube supported by dividing plate 7, silencing apparatus is divided into three chambers, eliminated the noise by interruption and reflective sound wave.Suction tude 3 and outlet pipe 9, blanking cover 8 by what be welded to connect, form an entirety with housing 2 like this.Effectively can reduce because engine luggine is excessive, cause the generation of silencing apparatus cracking phenomena.
Claims (8)
1. a silencing apparatus, is characterized in that: comprise housing (2), suction tude (3), outlet pipe (9) and hush tube (6); Described housing (2) is tubular, and inwall is designed to the perforated pipe (5) of through hole, is provided with sound-absorbing material (4) between inwall and outer wall, and housing (2) two ends are by end cap (1) sealing; One end of described suction tude (3), outlet pipe (9) is vertically plugged in enclosure interior; Described hush tube (6) is horizontally placed on housing central section by dividing plate (7), described hush tube (6) and dividing plate (7) are positioned between suction tude (3), outlet pipe (9), dividing plate (7) external diameter is identical with housing inner diameter, dividing plate (7) is provided with the through hole for fixing hush tube (6).
2. a kind of silencing apparatus according to claim 1, it is characterized in that, the length that described suction tude (3) and outlet pipe (9) go deep into housing (2) equals inner walls diameter, suction tude (3) and outlet pipe (9) go deep into being provided with blanking cover (8) bottom housing (2) one end, and suction tude (3) and outlet pipe (9) go deep into housing (2) part and be provided with the different through hole of diameter.
3. a kind of silencing apparatus according to claim 1, is characterized in that, described suction tude (3) is arranged on housing two ends with outlet pipe (9) parallel correspondence.
4. a kind of silencing apparatus according to claim 1, is characterized in that, described hush tube (6) is more than one or one, and every root hush tube (6) is parallel to each other.
5. a kind of silencing apparatus according to claim 1, is characterized in that, described hush tube (6) tubular body is provided with blanking cover (8).
6. a kind of silencing apparatus according to claim 1, is characterized in that, described hush tube (6) tube wall is provided with the different through hole of diameter.
7. a kind of silencing apparatus according to claim 1, is characterized in that, described sound-absorbing material (4) for the higher ultra-fine fibre glass of acoustic absorptivity cotton.
8. a kind of silencing apparatus according to claim 1, is characterized in that, described suction tude (3), outlet pipe (9) and hush tube (6) are cylindrical metal tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520401005.5U CN204703985U (en) | 2015-06-12 | 2015-06-12 | Silencing apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520401005.5U CN204703985U (en) | 2015-06-12 | 2015-06-12 | Silencing apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204703985U true CN204703985U (en) | 2015-10-14 |
Family
ID=54283608
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520401005.5U Expired - Fee Related CN204703985U (en) | 2015-06-12 | 2015-06-12 | Silencing apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204703985U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110454257A (en) * | 2018-08-17 | 2019-11-15 | 广州威能机电有限公司 | Porous resonance squelch type silencer and generating set |
-
2015
- 2015-06-12 CN CN201520401005.5U patent/CN204703985U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110454257A (en) * | 2018-08-17 | 2019-11-15 | 广州威能机电有限公司 | Porous resonance squelch type silencer and generating set |
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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 |
Granted publication date: 20151014 Termination date: 20200612 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |