CN201273204Y - Cylinder shaped silencer - Google Patents
Cylinder shaped silencer Download PDFInfo
- Publication number
- CN201273204Y CN201273204Y CNU2008202017562U CN200820201756U CN201273204Y CN 201273204 Y CN201273204 Y CN 201273204Y CN U2008202017562 U CNU2008202017562 U CN U2008202017562U CN 200820201756 U CN200820201756 U CN 200820201756U CN 201273204 Y CN201273204 Y CN 201273204Y
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- China
- Prior art keywords
- insulation board
- catalytic converter
- hole
- matches
- gas
- 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 - Lifetime
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- Exhaust Gas After Treatment (AREA)
- Exhaust Silencers (AREA)
Abstract
A cylinder type dissipative muffler comprises a forepart catalytic converter, a rear catalytic converter, a catalytic converter front connecting pipe, a catalytic converter support pipe, a catalytic converter connecting pipe, a fourth sound insulation board, a fifth sound insulation board and the like. The cylinder type dissipative muffler not only can reduce the discharge amount of harmful gas, but also can reduce the noise of exhaust.
Description
Technical field
The utility model relates to the automobile-used silencing apparatus of two-wheel, particularly with the silencing apparatus of waste-gas cleaning function.
Background technique
Existing cylinder type silencing apparatus, as shown in Figure 1, its structure comprises first hush pipe, second hush pipe, the 3rd hush pipe, tail pipe, inner cone tube, lining, cylindrical shell, first insulation board, second insulation board and the 3rd insulation board; It is the upper end that the inner cone tube is located at cylindrical shell; The inner cone tube is stretched in the first hush pipe bottom, and top is connected with lining; Second hush pipe passes first insulation board; The 3rd hush pipe passes second insulation board; Tail pipe passes the 3rd insulation board; Above-mentioned member all is located in the cylindrical shell.This acoustic wave filter structure is simple, produce in batches easily, but because this silencing apparatus only is provided with silencer and sound arrester, therefore, harmful gas in the waste gas is difficult to obtain handle, to contain many harmful gases in the tail gas like this, exhaust emissions does not reach existing state III emission standard, and its erasure effect does not reach NBS yet.
The model utility content
The purpose of this utility model provides a kind of cylinder type silencing apparatus, adopts this silencing apparatus can reduce discharge of harmful gas in tail gas, can also reduce exhaust noise.
For achieving the above object, cylinder type silencing apparatus of the present utility model comprises first hush pipe, second hush pipe, inner cone tube, lining, cylindrical shell, first insulation board, second insulation board, the 3rd insulation board, the 4th insulation board, the 5th insulation board and tail pipe, and described first insulation board is located in the cylindrical shell and is provided with the hole; Described second insulation board is located at below first insulation board; The 3rd insulation board is located at below second insulation board and is provided with the hole; The 4th insulation board is located at below the 3rd insulation board and is provided with the hole; The 5th insulation board is located at below the 4th insulation board and is provided with the hole; Described first hush pipe is located on the 3rd insulation board and the 4th insulation board, matches with the hole on the 3rd insulation board in its top, matches with the hole on the 4th insulation board in the bottom; Described second hush pipe is located on the 4th insulation board and with another hole on the 4th insulation board and matches; Described tail pipe is located on the 4th insulation board and the 5th insulation board, matches with the 3rd hole of the 4th insulation board in its top, matches with the hole on the 5th insulation board in the bottom; Described inner cone tube is located at the cylindrical shell upper end; Described lining is located between first insulation board and second insulation board; On first insulation board, be provided with the back segment catalytic converter; Back segment catalytic converter upper end is connected with the catalytic converter connecting tube; Catalytic converter connecting tube upper end is connected with the leading portion catalytic converter; Leading portion catalytic converter upper end is provided with the preceding connecting tube of catalytic converter.
The workflow of this cylinder type silencing apparatus is: after motor institute exhaust gas discharged enters this cylinder type silencing apparatus, at first enter the leading portion catalytic converter by connecting tube before the catalytic converter, herein, waste gas such as CO, NO that the leading portion catalytic converter impels motor to discharge
x, HC etc. and air generation reduction reaction, with the CO in the waste gas, NO
x, HC changes into N
2, H
2O, CO
2Deng.Then, the engine exhaust that reduction reaction takes place is entered the back segment catalytic converter by the catalytic converter connecting tube, under the catalysis of back segment catalytic converter oxidation reaction taking place, with harmful gas in the waste gas such as oxidations such as CO, HC, thereby reduces content of harmful gas.After sufficient reduction and oxidation reaction, engine exhaust is entered in the space between first insulation board and second insulation board by the back segment catalytic converter, gas generation gas expands in this space, then, the hole of part gas on first insulation board enters the upper space of first insulation board, gas expansion losses acoustic energy takes place at this, then, at the gas on the first insulation board top again in first insulation board is got back to the space of first insulation board and second insulation board; When gas enters the first insulation board top, the hole of a part of gas on second insulation board in first insulation board and second insulation board enters in the space of the 3rd insulation board and the formation of second insulation board, at this, generation gas expands, again in first hush pipe enters into the space that is formed by the 4th insulation board and the 5th insulation board, gas here takes place again to expand, and then in second hush pipe enters the space that is formed by the 3rd insulation board and the 4th insulation board, gas here takes place again to expand, after tail pipe tail gas is discharged.
In silencing apparatus, be provided with leading portion catalytic converter and back segment catalytic converter, when tail gas enters the leading portion catalytic converter, part harmful gas in the tail gas here with air generation reduction reaction, when tail gas enters into the back segment catalytic converter, here with air generation oxidation reaction; Because tail gas in leading portion catalytic converter and back segment catalytic converter reduction and oxidation reaction has taken place, and makes that chemical reaction has taken place the most of harmful gas in the tail gas, therefore, the tail gas that is discharged in the atmosphere only contains a spot of harmful gas; When tail gas during through hush pipe and insulation board and since generation repeatedly the gas expansion, lost a large amount of acoustic energy, therefore, the gas noise of discharge is low.
As improvement, described leading portion catalytic converter is provided with support tube, and the inwall of its upper end matches with connecting tube outer wall before the catalytic converter, and outer wall matches with described inner cone tube upper inside wall.Be provided with support tube, make that the preceding connecting tube of catalytic converter is more firm with being connected of leading portion catalytic converter.
As improvement, glass fibre cotton is arranged around the described lining.
As improvement, described second insulation board is provided with densely covered aperture.Waste gas is entered in the space that is formed by second insulation board and the 3rd insulation board smoothly.
As improvement, the working surface of described first insulation board, second insulation board, the 3rd insulation board, the 4th insulation board and the 5th insulation board is spherical.Like this waste gas mobile had buffer function.
Description of drawings
Fig. 1 is a cylinder type silencing apparatus sectional view of the prior art;
Fig. 2 is the sectional view of the utility model cylinder type silencing apparatus.
Embodiment
Cylinder type silencing apparatus as shown in Figure 2 comprises that first hush pipe 12, second hush pipe 15, inner cone tube 4, lining 8, cylindrical shell 6, first insulation board 7, second insulation board 11, the 3rd insulation board 13, the 4th insulation board 14, the 5th insulation board 17 and tail pipe 16, the first insulation boards 7 are located in the cylindrical shell 6 and are provided with the hole; Second insulation board 11 is located at below first insulation board 7; The 3rd insulation board 13 is located at below second insulation board 11 and is provided with the hole; The 4th insulation board 14 is located at below the 3rd insulation board 13 and is provided with the hole; The 5th insulation board 17 is located at below the 4th insulation board 14 and is provided with the hole; First hush pipe 12 is located on the 3rd insulation board 13 and the 4th insulation board 14, matches with the hole on the 3rd insulation board 13 in its top, matches with the hole on the 4th insulation board 14 in the bottom; Second hush pipe 15 is located on the 4th insulation board 14 and with another hole on the 4th insulation board 14 and matches; Tail pipe 16 is located on the 4th insulation board 14 and the 5th insulation board 17, matches with the 3rd hole of the 4th insulation board 14 in its top, matches with the hole on the 5th insulation board 17 in the bottom; Lining 8 is located between first insulation board 7 and second insulation board 11 and is provided with glass fibre cotton 10 around it; Inner cone tube 4 is located at cylindrical shell 6 upper ends; On first insulation board 7, be provided with back segment catalytic converter 9; Back segment catalytic converter 9 upper ends are connected with catalytic converter connecting tube 5; Catalytic converter connecting tube 5 upper ends are connected with leading portion catalytic converter 3; Leading portion catalytic converter 3 upper ends are provided with the preceding connecting tube 1 of catalytic converter; Leading portion catalytic converter 3 is provided with support tube 2, and the inwall of its upper end matches with connecting tube 1 outer wall before the catalytic converter, and outer wall matches with described inner cone tube 4 upper inside wall; The working surface of above-mentioned first insulation board 7, second insulation board 11, the 3rd insulation board 13, the 4th insulation board 14 and the 5th insulation board 17 is spherical.
The workflow of this cylinder type silencing apparatus is illustrated in figure 2 as: after motor institute exhaust gas discharged enters this cylinder type silencing apparatus, at first enter leading portion catalytic converter 3 by connecting tube before the catalytic converter 1, herein, leading portion catalytic converter 3 impels waste gas such as CO, the NO that motor is discharged
x, HC etc. and air generation reduction reaction, with the CO in the waste gas, NO
x, HC changes into N
2, H
2O, CO
2Deng.Then, the engine exhaust that reduction reaction has taken place enters back segment catalytic converter 9 by catalytic converter connecting tube 5, under the catalysis of back segment catalytic converter 9 oxidation reaction taking place, with harmful gas in the waste gas such as oxidations such as CO, HC, thereby reduces content of harmful gas.Through behind the sufficient redox reaction, engine exhaust is entered in the space between first insulation board 7 and second insulation board 11 by the back segment catalytic converter, gas expands in this space, then, the hole of part gas on first insulation board enters the upper space of first insulation board 7, gas expansion losses acoustic energy takes place at this, then, at the gas on first insulation board, 7 tops again in first insulation board 7 is got back to the space of first insulation board 7 and second insulation board 11; When gas enters first insulation board, 7 tops, the hole of a part of gas on second insulation board 11 in first insulation board 7 and second insulation board 11 enters in the space of the 3rd insulation board 13 and 11 formation of second insulation board, at this, expand again, again in first hush pipe 12 enters into the space that is formed by the 4th insulation board 14 and the 5th insulation board 17, here expand again, and then in second hush pipe 15 enters the space that is formed by the 3rd insulation board 13 and the 4th insulation board 14, here take place again once to expand, after tail pipe 16 tail gas is discharged.
Compared with prior art, owing to tail gas is sent out in leading portion catalytic converter and back segment catalytic converter Survive former and oxidation reaction, so that the most of pernicious gas in the tail gas is transformed into other innocuous gas, Therefore, the tail gas that is discharged in the atmosphere only contains a small amount of pernicious gas; When tail gas through hush pipe and During sound panel, lost a large amount of acoustic energy owing to gas expansion has repeatedly taken place, therefore, discharged The gas noise low.
Claims (5)
1. cylinder type silencing apparatus, comprise first hush pipe, second hush pipe, inner cone tube, lining, cylindrical shell, first insulation board, second insulation board, the 3rd insulation board, the 4th insulation board, the 5th insulation board and tail pipe, described first insulation board is located in the cylindrical shell and is provided with the hole; Described second insulation board is located at below first insulation board; The 3rd insulation board is located at below second insulation board and is provided with the hole; The 4th insulation board is located at below the 3rd insulation board and is provided with the hole; The 5th insulation board is located at below the 4th insulation board and is provided with the hole; Described first hush pipe is located on the 3rd insulation board and the 4th insulation board, matches with the hole on the 3rd insulation board in its top, matches with the hole on the 4th insulation board in the bottom; Described second hush pipe is located on the 4th insulation board and with another hole on the 4th insulation board and matches; Described tail pipe is located on the 4th insulation board and the 5th insulation board, matches with the 3rd hole of the 4th insulation board in its top, matches with the hole on the 5th insulation board in the bottom; Described inner cone tube is located at the cylindrical shell upper end; Described lining is located between first insulation board and second insulation board; It is characterized in that: on first insulation board, be provided with the back segment catalytic converter; Back segment catalytic converter upper end is connected with the catalytic converter connecting tube; Catalytic converter connecting tube upper end is connected with the leading portion catalytic converter; Leading portion catalytic converter upper end is provided with the preceding connecting tube of catalytic converter.
2. cylinder type silencing apparatus as claimed in claim 1 is characterized in that: the leading portion catalytic converter is provided with support tube, and the inwall of its upper end matches with connecting tube outer wall before the catalytic converter, and outer wall matches with described inner cone tube upper inside wall.
3. cylinder type silencing apparatus as claimed in claim 1 is characterized in that: be provided with glass fibre cotton around the described lining.
4. cylinder type silencing apparatus as claimed in claim 1 is characterized in that: described second insulation board is provided with densely covered aperture.
5. cylinder type silencing apparatus as claimed in claim 1 is characterized in that: the working surface of described first insulation board, second insulation board, the 3rd insulation board, the 4th insulation board and the 5th insulation board is for spherical.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202017562U CN201273204Y (en) | 2008-10-13 | 2008-10-13 | Cylinder shaped silencer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202017562U CN201273204Y (en) | 2008-10-13 | 2008-10-13 | Cylinder shaped silencer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201273204Y true CN201273204Y (en) | 2009-07-15 |
Family
ID=40883552
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008202017562U Expired - Lifetime CN201273204Y (en) | 2008-10-13 | 2008-10-13 | Cylinder shaped silencer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201273204Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104153864A (en) * | 2014-07-31 | 2014-11-19 | 柳州利和排气控制***有限公司 | Auxiliary muffler for automobile engine |
| CN105569772A (en) * | 2016-02-18 | 2016-05-11 | 力帆实业(集团)股份有限公司 | Silencer of exhaust system of motorcycle |
| CN106523099A (en) * | 2016-12-01 | 2017-03-22 | 江门气派摩托车有限公司 | Muffler of motorcycle |
| CN109185434A (en) * | 2018-11-19 | 2019-01-11 | 襄阳市中康汽车配件有限公司 | A kind of gear box casing and gearbox |
-
2008
- 2008-10-13 CN CNU2008202017562U patent/CN201273204Y/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104153864A (en) * | 2014-07-31 | 2014-11-19 | 柳州利和排气控制***有限公司 | Auxiliary muffler for automobile engine |
| CN104153864B (en) * | 2014-07-31 | 2016-08-17 | 柳州利和排气控制***有限公司 | Automobile engine pair acoustic filter |
| CN105569772A (en) * | 2016-02-18 | 2016-05-11 | 力帆实业(集团)股份有限公司 | Silencer of exhaust system of motorcycle |
| CN106523099A (en) * | 2016-12-01 | 2017-03-22 | 江门气派摩托车有限公司 | Muffler of motorcycle |
| CN109185434A (en) * | 2018-11-19 | 2019-01-11 | 襄阳市中康汽车配件有限公司 | A kind of gear box casing and gearbox |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Dayang Motorcycle Co., Ltd., Guangzhou City Assignor: Yuan Qinshan Contract fulfillment period: 2009.8.15 to 2014.8.15 Contract record no.: 2009440001813 Denomination of utility model: Cylinder shaped silencer Granted publication date: 20090715 License type: Exclusive license Record date: 20091117 |
|
| LIC | Patent licence contract for exploitation submitted for record |
Free format text: EXCLUSIVE LICENSE; TIME LIMIT OF IMPLEMENTING CONTACT: 2009.8.15 TO 2014.8.15; CHANGE OF CONTRACT Name of requester: GUANGZHOU CITY DAYANG MOTORCYCLE CO., LTD. Effective date: 20091117 |
|
| ASS | Succession or assignment of patent right |
Owner name: GUANGZHOU DAYUN MOTORCYCLE CO., LTD. Free format text: FORMER OWNER: YUAN QINSHAN Effective date: 20150814 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20150814 Address after: 510800 Guangdong Province, Guangzhou Huadu Shiling pingbu Avenue Qixing Road Patentee after: GUANGZHOU DAYUN MOTORCYCLE CO., LTD. Address before: 510800 Guangdong Province, Guangzhou Huadu District Yongfa Road No. 12 Patentee before: Yuan Qinshan |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20090715 |