CN202441449U - Sedan air exhaust silencer in accordance with National V Emission Standard - Google Patents
Sedan air exhaust silencer in accordance with National V Emission Standard Download PDFInfo
- Publication number
- CN202441449U CN202441449U CN 201220093963 CN201220093963U CN202441449U CN 202441449 U CN202441449 U CN 202441449U CN 201220093963 CN201220093963 CN 201220093963 CN 201220093963 U CN201220093963 U CN 201220093963U CN 202441449 U CN202441449 U CN 202441449U
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- CN
- China
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- assembly
- suction tude
- exhaust silencer
- catalyzer
- air inlet
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Abstract
The utility model discloses a sedan air exhaust silencer in accordance with the National V Emission Standard. The sedan air exhaust silencer comprises a front pipe assembly, a middle silencer assembly, a rear pipe assembly and a rear silencer assembly which are connected in sequence. The front pipe assembly comprises an air inlet pipe assembly, a front air inlet pipe I, a catalyst assembly, a front air inlet pipe II and a middle silencing front flange, wherein the air inlet pipe assembly is directly connected with the front air inlet pipe I; the front air inlet pipe I is connected with the catalyst assembly and an air inlet II in sequence; the middle silencing front flange is mounted at an end part at one end of the air inlet pipe II, which is far from the catalyst assembly; and the end part at one end of the air inlet pipe II, which is far from the catalyst assembly, is connected with the middle silencer assembly through the middle silencing front flange. The catalyst assembly is additionally arranged on the front pipe assembly of the air exhaust silencer, so as to further purify and meet high requirements in the National V Emission Standard. Therefore, the air exhaust silencer additionally provided with the catalyst assembly has the advantages of compact and reasonable structure, and convenience in use.
Description
Technical field
The utility model relates to the car releasing system, is specifically related to a kind of car exhaust silencer that can satisfy state's five emission standards.
Background technique
State's five standards are equivalent to Europe five standards of European Union, and from execution in 2009, its restriction to vehicular emission things such as nitrogen oxide, hydrocarbons was more harsh in European Union.Put forward the IV to state from state's I, every raising one substandard, bicycle pollute and reduce 30% to 50%.
Use the petrol and diesel oil of new standard will reduce discharging multinomial pollutant, the discharging of cutting down PM2.5 is from state four to state five, and indexs such as environmental protection further add sternly, and wherein Sulpher content drops to 10ppm from 50ppm, and oil quality is further raising also.The suggestion original text also is revised as the motor petrol trade mark No. 89, No. 92, No. 95 by No. 90, No. 93, No. 97.
Result of study shows that automobile-used petrol and diesel oil quality upgrading is very big to the contribution that reduces discharging, and five-stage substitutes the stage motor petrol and diesel oil will realize at least that 10% and 7% nitrogen oxide reduces discharging.Hydrocarbon, carbon monoxide, nitrogen oxide, granular material dischargedly all can be effectively controlled.After implementing new standard, the Sulpher content in the fuel oil be merely before this 1/5th, and because oil quality improves, burning will be more abundant also.Therefore can directly reduce the discharging of PM2.5 in the tail gas.
Present domestic car main flow emission standard is state's four standards; Car design just satisfies state's four standards and gets final product so; Most car only has the first class purification device, and second cleaner is not set on exhaust silencer, so can't satisfy the needs of higher state five standards.
The model utility content
The utility model has overcome the deficiency of existing technology; A kind of car exhaust silencer that satisfies state's five emission standards is provided; This silencing apparatus increases a catalyzer assembly on preceding pipe assembly; This catalyzer assembly can play the problem of further purification motor vehicle emission tail gas, has solved the technical problem that exists in the existing technology.
For solving above-mentioned technical problem, the utility model adopts following technological scheme:
A kind of car exhaust silencer that satisfies state's five emission standards; Comprise the preceding pipe assembly that connects successively, middle muffler assembly, back pipe assembly and rear muffler assembly; Before described pipe assembly comprise suction tude assembly, preceding suction tude one, catalyzer assembly, preceding suction tude two and in the forward flange that disappears; Wherein the suction tude assembly directly is connected with preceding suction tude one; Before suction tude be connected successively with catalyzer assembly, suction tude two again and again, the forward flange that disappears during suction tude two is equipped with away from an end end of catalyzer assembly, and through in the forward flange that disappears be connected with middle muffler assembly.
Technological scheme further is:
Described catalyzer assembly comprises front cover, liner, catalyzer, shell and rear end cover; Wherein said catalyzer and liner are wrapped within the shell; Front cover and rear end cover then lay respectively at the two ends of shell; Wherein said front cover is connected with preceding suction tude one, and rear end cover then is communicated with preceding suction tude two.
Described suction tude assembly and preceding suction tude one joint are socketed with bellows.
Described liner is between catalyzer and shell.
Described front cover is the same with the rear end cover shape, is tubaeform.
Pipe assembly is provided with hook near the tube wall of middle muffler assembly before described, and simultaneously, back pipe assembly also is provided with hook near the tube wall of middle muffler assembly.
Pipe assembly, middle muffler assembly, back pipe assembly and rear muffler assembly connect as one through welding manner before described.
Compared with prior art, the beneficial effect of the utility model is:
1, on the preceding pipe assembly of exhaust silencer, increases a catalyzer assembly, play the effect of further purification, can satisfy the high request of state's five emission standards.
2, increased the exhaust silencer compact structure of catalyzer assembly, rationally, the convenient use.
Description of drawings
Fig. 1 is the car outlet pipe assembly figure that is applicable to state's four standards;
Fig. 2 is the utility model overall structure schematic representation;
Fig. 3 is the preceding pipe assembly schematic representation of the utility model;
Fig. 4 is the catalyzer assembly schematic representation of the utility model.
Embodiment
Below in conjunction with accompanying drawing the utility model is done further to set forth.
As shown in Figure 2, a kind of car exhaust silencer that satisfies state's five emission standards comprises the preceding pipe assembly 1, middle muffler assembly 2, back pipe assembly 3 and the rear muffler assembly 4 that connect successively.Before pipe assembly 1, middle muffler assembly 2, back pipe assembly 3 and rear muffler assembly 4 connect as one through welding manner.
Like Fig. 2, shown in 3; Before described pipe assembly 1 comprise suction tude assembly 11, preceding suction tude 1, catalyzer assembly 13, preceding suction tude 2 14 and in the forward flange 15 that disappears; Wherein suction tude assembly 11 directly is connected with preceding suction tude 1; Before suction tude 1 be connected successively with catalyzer assembly 13, suction tude 2 14 again, the forward flange 15 that disappears during suction tude 2 14 is equipped with away from an end end of catalyzer assembly 13, and through in the forward flange 15 that disappears be connected with middle muffler assembly 2.Suction tude assembly 11 is socketed with bellows 16 with preceding suction tude one 12 joints.
As shown in Figure 4; Catalyzer assembly 13 comprises front cover 13-1, liner 13-3, catalyzer 13-4, shell 13-2 and rear end cover 13-5; Wherein said catalyzer 13-4 and liner 13-3 are wrapped within the shell 13-2; Front cover 13-1 and rear end cover 13-5 then lay respectively at the two ends of shell 13-2, and wherein said front cover 13-1 is connected with preceding suction tude 1, and rear end cover 13-5 then is communicated with preceding suction tude 2 14.Described liner 13-3 is between catalyzer 13-4 and shell 13-2.Described front cover 13-1 is the same with rear end cover 13-5 shape, is tubaeform.
Certainly, we can also be provided with hook near the tube wall of middle muffler assembly 2 with preceding pipe assembly 1, and simultaneously, back pipe assembly 3 also is provided with hook near the tube wall of middle muffler assembly 2.
Claims (7)
1. car exhaust silencer that satisfies state's five emission standards; Comprise the preceding pipe assembly (1), middle muffler assembly (2), back pipe assembly (3) and the rear muffler assembly (4) that connect successively; It is characterized in that: before described pipe assembly (1) comprise suction tude assembly (11), preceding suction tude one (12), catalyzer assembly (13), preceding suction tude two (14) and in the forward flange (15) that disappears; Wherein suction tude assembly (11) directly is connected with preceding suction tude one (12); Preceding suction tude one (12) is connected with catalyzer assembly (13), suction tude two (14) more successively; The forward flange (15) that disappears during suction tude two (14) is equipped with away from an end end of catalyzer assembly (13), and through in the forward flange (15) that disappears be connected with middle muffler assembly (2).
2. the car exhaust silencer that satisfies state's five emission standards according to claim 1; It is characterized in that: described catalyzer assembly (13) comprises front cover (13-1), liner (13-3), catalyzer (13-4), shell (13-2) and rear end cover (13-5); Wherein said catalyzer (13-4) and liner (13-3) are wrapped within the shell (13-2); Front cover (13-1) and rear end cover (13-5) then lay respectively at the two ends of shell (13-2); Wherein said front cover (13-1) is connected with preceding suction tude one (12), and rear end cover (13-5) then is communicated with preceding suction tude two (14).
3. the car exhaust silencer that satisfies state's five emission standards according to claim 1 is characterized in that: described suction tude assembly (11) and preceding suction tude one (12) joint are socketed with bellows (16).
4. the car exhaust silencer that satisfies state's five emission standards according to claim 2 is characterized in that: described liner (13-3) is positioned between catalyzer (13-4) and the shell (13-2).
5. the car exhaust silencer that satisfies state's five emission standards according to claim 2 is characterized in that: described front cover (13-1) is the same with rear end cover (13-5) shape, is tubaeform.
6. the car exhaust silencer that satisfies state's five emission standards according to claim 2; It is characterized in that: pipe assembly (1) is provided with hook near the tube wall of middle muffler assembly (2) before described; Simultaneously, back pipe assembly (3) also is provided with hook near the tube wall of middle muffler assembly (2).
7. the car exhaust silencer that satisfies state's five emission standards according to claim 1 is characterized in that: pipe assembly (1), middle muffler assembly (2), back pipe assembly (3) and rear muffler assembly (4) connect as one through welding manner before described.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220093963 CN202441449U (en) | 2012-03-14 | 2012-03-14 | Sedan air exhaust silencer in accordance with National V Emission Standard |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220093963 CN202441449U (en) | 2012-03-14 | 2012-03-14 | Sedan air exhaust silencer in accordance with National V Emission Standard |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202441449U true CN202441449U (en) | 2012-09-19 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220093963 Expired - Fee Related CN202441449U (en) | 2012-03-14 | 2012-03-14 | Sedan air exhaust silencer in accordance with National V Emission Standard |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202441449U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106907274A (en) * | 2017-04-20 | 2017-06-30 | 安徽江淮汽车集团股份有限公司 | A kind of engine emission-reducing system |
-
2012
- 2012-03-14 CN CN 201220093963 patent/CN202441449U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106907274A (en) * | 2017-04-20 | 2017-06-30 | 安徽江淮汽车集团股份有限公司 | A kind of engine emission-reducing system |
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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: 20120919 Termination date: 20140314 |