CN2883687Y - Front exhaust pipe assembly with 3-element catalytic unit - Google Patents
Front exhaust pipe assembly with 3-element catalytic unit Download PDFInfo
- Publication number
- CN2883687Y CN2883687Y CN 200520115909 CN200520115909U CN2883687Y CN 2883687 Y CN2883687 Y CN 2883687Y CN 200520115909 CN200520115909 CN 200520115909 CN 200520115909 U CN200520115909 U CN 200520115909U CN 2883687 Y CN2883687 Y CN 2883687Y
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- China
- Prior art keywords
- assembly
- sound attenuation
- purifier
- exhaust pipe
- flange
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- Expired - Lifetime
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Abstract
The utility model relates to an improved structure of a front exhaust tube assembly with a three-way catalyst, comprising a purifier component, a front muffling component and a rear muffling component connected to the purifier; the utility model is characterized in that the purifier component is connected to the front muffling component through a flange, the front muffling component is connected to the rear muffling component through the flange, and a heat-dissipating plate is arranged on the casing of the purifier component. The utility model has the advantages that: firstly, the utility model is reasonable designed with simple structure and easily applied; secondly, the attached dissipating plate on the outside of the purifier casing improves the economy in package and transportation and reduces the repairing cost; thirdly, the dissipating plate not only improves the heat counterbalance of the engine chamber but also increases the heat dissipating ability of the purifier to prolong the service life.
Description
Technical field
The utility model relates to a kind of exhaust gas purification and silencer of automobile, especially relates to a kind of structure improvement that has the front exhaust pipe assembly of ternary catalyzing unit.
Background technique
Ternary catalyzing unit is mounted in most important external purification device in the automobile exhaust system, and harmful gases such as CO, HC that it can be discharged vehicle exhaust and NOx change harmless carbon dioxide, water and nitrogen into by oxidation and reduction.Because this catalyst converter can mainly contain harmful substances with the work post in the waste gas simultaneously and be converted into innoxious substance, so claim ternary.
The working principle of ternary catalyzing unit is: when the vehicle exhaust of high temperature passes through purification plant, purifying agent in the ternary catalyzing unit will strengthen the activity of CO, HC and three kinds of gases of NOx, impel it to carry out certain OR chemical reaction, wherein CO at high temperature is oxidized into colourless, nontoxic carbon dioxide; The HC compound at high temperature is oxidized to water (H20) and carbon dioxide; NOx is reduced into nitrogen and oxygen.Three kinds of harmful gases become innocuous gas, and vehicle exhaust is purified.
At present, the heat dispersion of widely used front exhaust pipe assembly is not satisfactory, thereby has influenced the thermal equilibrium performance of engine bin, and then has influenced the working life of purifier.In addition, because the intrinsic defect that exists is gone up in design, its structure is very unreasonable, and processing and manufacturing difficulty is big, and the cost of packing and transportation is also higher, and Economy is relatively poor.
Summary of the invention
The utility model mainly is that to have solved the existing in prior technology heat dispersion relatively poor, and the thermal equilibrium performance of engine bin is not satisfactory, the technical problem that the working life of whole device is short etc.; Provide a kind of reasonable in design, simple in structure, perfect heat-dissipating, the thermal equilibrium performance height of engine bin, and the front exhaust pipe assembly that has ternary catalyzing unit of long service life.
It is that to solve the existing in prior technology processing and manufacturing difficulty big that the utility model also has a purpose, packing and cost of transportation height, and Economy is relatively poor, the technical problem that is unfavorable for applying etc.; A kind of processing and fabricating that is easy to is provided, with low cost, the front exhaust pipe assembly of being convenient to pack and transport that has ternary catalyzing unit.
Above-mentioned technical problem of the present utility model is mainly solved by following technical proposals: the front exhaust pipe assembly that has ternary catalyzing unit, comprise purifier assembly and the preceding sound attenuation assembly that is attached thereto and back sound attenuation assembly, it is characterized in that linking to each other with preceding sound attenuation assembly by flange at described purifier assembly, described preceding sound attenuation assembly links to each other with the back sound attenuation assembly by flange; And the shell of described purifier assembly is provided with a Heat sink.
The utility model creatively is provided with a Heat sink on the shell of purifier assembly, thereby has improved its heat dispersion effectively, in addition, by flange each assembly is coupled together, and not only is convenient to processing, reduces production costs, and is convenient to packing and transportation.
As preferably, the shape of described Heat sink and the shell shape of purifier adapt.Heat sink is close to the outer surface of purifier, helps the transmission of heat, is convenient to heat radiation.
As preferably, an end of described purifier assembly is connected with pipe joint, is provided with the ball impression flange in the end of pipe joint.
As preferably, the other end of described purifier assembly is connected with rear tube, and this rear tube links to each other by the suction tude that disappears before adpting flange and the preceding sound attenuation assembly, is provided with sealing gasket between the described adpting flange.
As preferably, described before sound attenuation assembly before the outlet pipe end that disappears be provided with round flange, the suction tude that disappears behind back sound attenuation assembly end is provided with the ball impression flange; Both cooperatively interact by above-mentioned round flange and ball impression flange.
As preferably, disappear after the two ends of described back sound attenuation assembly are fixed with respectively front hook and after the aft hook that disappears.
For the ease of fixing, as preferably, described before the both sides of sound attenuation assembly be respectively equipped with left side hook and right hook.
For the ease of fixation of sensor, the collection work status information, as preferably, described pipe joint is provided with the lambda sensor nut.
In addition, as preferably, the end of described back sound attenuation assembly is provided with tail pipe.
Therefore, the utlity model has following advantage: 1, reasonable in design, simple in structure, easy to implement; 2, Heat sink of design outside purifier shell, this structure had both improved the Economy of packing and transportation, had also reduced maintenance expenses; 3, Heat sink had both improved the thermal equilibrium performance of engine bin, had increased the heat dissipation potential of purifier simultaneously, the working life of having improved purifier.
Description of drawings
Accompanying drawing 1 is a kind of structural representation of the present utility model;
Accompanying drawing 2 is the structural representations at another visual angle of the present utility model.
Embodiment
Below by embodiment, and in conjunction with the accompanying drawings, the technical solution of the utility model is described in further detail.
Embodiment:
As shown in Figure 1, 2, have the front exhaust pipe assembly of ternary catalyzing unit, the preceding sound attenuation assembly 8 and the back sound attenuation assembly 14 that comprise purifier assembly 3 and be attached thereto.Purifier assembly 3 links to each other with preceding sound attenuation assembly 8 by flange, and described preceding sound attenuation assembly 8 links to each other with back sound attenuation assembly 14 by flange; And the shell 20 of described purifier assembly 3 is provided with a Heat sink 21.The shape of Heat sink 21 and the shell shape of purifier adapt.
Specifically, an end of purifier assembly 3 is connected with pipe joint 2, is provided with ball impression flange 1 in the end of pipe joint 2.The other end of purifier assembly 3 is connected with rear tube 4, and this rear tube 4 links to each other by the suction tude 7 that disappears before adpting flange 5 and the preceding sound attenuation assembly 8, is provided with sealing gasket 6 between the described adpting flange 5.Before sound attenuation assembly 8 before outlet pipe 9 ends that disappear be provided with round flange 10, the suction tude that disappears behind the back sound attenuation assembly 14 12 ends are provided with the ball impression flange; Both cooperatively interact by above-mentioned round flange and ball impression flange.Disappear after the two ends of back sound attenuation assembly 14 are fixed with respectively front hook 13 and after the aft hook 15 that disappears.The both sides of preceding sound attenuation assembly 8 are respectively equipped with left side hook 17 and the right side links up with 18.On pipe joint 2, be provided with lambda sensor nut 19.End at back sound attenuation assembly 14 is provided with tail pipe 16.
During work, tail gas passes through purifier assembly 3, preceding sound attenuation assembly 8 and back sound attenuation assembly 14 successively, heat and purification is fallen in its heat and a large amount of harmful matters of containing, thereby make it meet emission request.The Heat sink that is attached to purifier assembly 3 outer surfaces has improved heat dispersion effectively.
Specific embodiment described herein only is that the utility model spirit is illustrated.The utility model person of ordinary skill in the field can make various modifications or replenishes or adopt similar mode to substitute described specific embodiment, but can't depart from spirit of the present utility model or surmount the defined scope of appended claims.
Although this paper has used terms such as ball impression flange 1, pipe joint 2, purifier assembly 3, rear tube 4, adpting flange 5 morely, do not get rid of the possibility of using other term.Using these terms only is in order to describe and explain essence of the present utility model more easily; They are construed to any additional restriction all is contrary with the utility model spirit.
Claims (10)
1. front exhaust pipe assembly that has ternary catalyzing unit, preceding sound attenuation assembly (8) that comprises purifier assembly (3) and be attached thereto and back sound attenuation assembly (14), it is characterized in that linking to each other with preceding sound attenuation assembly (8) by flange at described purifier assembly (3), described preceding sound attenuation assembly (8) links to each other with back sound attenuation assembly (14) by flange; And the shell (20) of described purifier assembly (3) is provided with a Heat sink (21).
2. the front exhaust pipe assembly that has ternary catalyzing unit according to claim 1 is characterized in that the shape of described Heat sink (21) and the shell shape of purifier adapt.
3. the front exhaust pipe assembly that has ternary catalyzing unit according to claim 2 is characterized in that an end of described purifier assembly (3) is connected with pipe joint (2), is provided with ball impression flange (1) in the end of pipe joint (2).
4. the front exhaust pipe assembly that has ternary catalyzing unit according to claim 3, the other end that it is characterized in that described purifier assembly (3) is connected with rear tube (4), this rear tube (4) links to each other by the suction tude (7) that disappears before adpting flange (5) and the preceding sound attenuation assembly (8), is provided with sealing gasket (6) between the described adpting flange (5).
5. the front exhaust pipe assembly that has ternary catalyzing unit according to claim 4, it is characterized in that described before sound attenuation assembly (8) before outlet pipe (9) end that disappears be provided with round flange (10), the suction tude that disappears behind the back sound attenuation assembly (14) (12) end is provided with the ball impression flange; Both cooperatively interact by above-mentioned round flange and ball impression flange.
6. according to claim 1 or 3 or the 4 or 5 described front exhaust pipe assemblies that have ternary catalyzing unit, disappear after the two ends that it is characterized in that described back sound attenuation assembly (14) are fixed with respectively front hook (13) and after the aft hook (15) that disappears.
7. according to claim 1 or 3 or the 4 or 5 described front exhaust pipe assemblies that have ternary catalyzing unit, it is characterized in that the both sides of described preceding sound attenuation assembly (8) are respectively equipped with left side hook (17) and right hook (18).
8. the front exhaust pipe assembly that has ternary catalyzing unit according to claim 6 is characterized in that the both sides of described preceding sound attenuation assembly (8) are respectively equipped with left side hook (17) and right hook (18).
9. according to claim 1 or 3 or the 4 or 5 described front exhaust pipe assemblies that have ternary catalyzing unit, it is characterized in that described pipe joint (2) is provided with lambda sensor nut (19).
10. the front exhaust pipe assembly that has ternary catalyzing unit according to claim 6 is characterized in that the end of described back sound attenuation assembly (14) is provided with tail pipe (16).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520115909 CN2883687Y (en) | 2005-11-01 | 2005-11-01 | Front exhaust pipe assembly with 3-element catalytic unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520115909 CN2883687Y (en) | 2005-11-01 | 2005-11-01 | Front exhaust pipe assembly with 3-element catalytic unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2883687Y true CN2883687Y (en) | 2007-03-28 |
Family
ID=37956749
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520115909 Expired - Lifetime CN2883687Y (en) | 2005-11-01 | 2005-11-01 | Front exhaust pipe assembly with 3-element catalytic unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2883687Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104343517A (en) * | 2014-06-18 | 2015-02-11 | 南京海特汽车部件有限公司 | Automobile muffler assembly |
-
2005
- 2005-11-01 CN CN 200520115909 patent/CN2883687Y/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104343517A (en) * | 2014-06-18 | 2015-02-11 | 南京海特汽车部件有限公司 | Automobile muffler assembly |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20070328 |
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| EXPY | Termination of patent right or utility model |