CN204152617U - A kind of close coupling gas exhaust manifold and catalytic converter assembly - Google Patents
A kind of close coupling gas exhaust manifold and catalytic converter assembly Download PDFInfo
- Publication number
- CN204152617U CN204152617U CN201420510350.8U CN201420510350U CN204152617U CN 204152617 U CN204152617 U CN 204152617U CN 201420510350 U CN201420510350 U CN 201420510350U CN 204152617 U CN204152617 U CN 204152617U
- Authority
- CN
- China
- Prior art keywords
- clam shell
- outlet
- catalyst converter
- flange
- fixed
- 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
Links
- 230000003197 catalytic effect Effects 0.000 title claims abstract description 11
- 230000008878 coupling Effects 0.000 title claims abstract description 9
- 238000010168 coupling process Methods 0.000 title claims abstract description 9
- 238000005859 coupling reaction Methods 0.000 title claims abstract description 9
- 239000003054 catalyst Substances 0.000 claims abstract description 22
- 206010022000 influenza Diseases 0.000 claims abstract description 5
- 239000007789 gas Substances 0.000 abstract description 8
- 229910001220 stainless steel Inorganic materials 0.000 abstract description 2
- 239000010935 stainless steel Substances 0.000 abstract description 2
- 239000002912 waste gas Substances 0.000 abstract description 2
- 230000000694 effects Effects 0.000 abstract 1
- 241000283080 Proboscidea <mammal> Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Landscapes
- Exhaust Gas After Treatment (AREA)
Abstract
The utility model provides a kind of close coupling gas exhaust manifold and catalytic converter assembly, and problem to be solved is: catalyst converter distance cylinder head is comparatively far away, cannot meet emission standard during vehicle cold start-up; The technical solution of the utility model is: the entrance of suction port flange and four bend pipe air flues welds together, the outlet of bend pipe air flue is arranged in ' field ' font and is fixed on the ingress of clam shell design, the outlet port of clam shell design is fixed with catalyst converter, catalyst converter and rear end cover are tightly connected, and rear end cover lower end is fixed with outlet(discharge) flange and outer pipe successively; Good effect of the present utility model is: adopt stainless steel elbow air flue, clam shell design and catalyst converter to be welded into close coupling structure and shorten distance between catalytic converter and cylinder head to replace original Flange joint; Enable catalyzer Fast light-off, during reducing cold starting, discharge the problem of more waste gas because temperature is too low.
Description
Technical field
The utility model relates to technical field of automobile engine, is a kind of close coupling gas exhaust manifold and catalytic converter assembly that can make catalyzer Fast light-off specifically.
Background technique
Along with people environmental protection more and more paid attention to and country to the requirement increasingly stringent of automobile emissions standards, existing most of vehicle cannot reduce discharge amount of exhaust gas, mainly because existing gas exhaust manifold and catalyst converter pass through Flange joint, catalyst converter distance cylinder head is comparatively far away, cannot meet emission standard during vehicle cold start-up; Four air flues draw in together by tubular construction, form sphere of movements for the elephants structure.The air outlet flue of this structure is vertical with catalyst converter carrier front-end face, and because air-flow velocity is very fast, each cylinder exhaust stream cannot be distributed on carrier uniformly, causes bed temperature gradient comparatively large, very easily cracking and plugging fault occurs, have impact on the working life of catalyst converter.
This just requires that three-way catalytic converter is as much as possible near cylinder head, makes catalyzer can Fast light-off, the problem that cannot meet emission standard because temperature is too low during solving cold starting; Meanwhile, for improving the working life of ternary catalyzing unit, avoiding catalyst converter, because local superheating produces temperature gradient, the faults such as fracture and blocking occur, requiring that exhaust stream is evenly distributed to catalyst converter carrier front-end face.
Summary of the invention
The purpose of this utility model is to provide a kind of close coupling gas exhaust manifold and the catalytic converter assembly that can make catalyzer Fast light-off.
The technical solution of the utility model is: the entrance of suction port flange and four bend pipe air flues welds together, the outlet of bend pipe air flue is arranged in ' field ' font and is fixed on the ingress of clam shell design, the outlet port of clam shell design is fixed with catalyst converter, catalyst converter and rear end cover are tightly connected, and rear end cover lower end is fixed with outlet(discharge) flange and outer pipe successively; Described clam shell design is made up of upper and lower two ' Y ' shape clam shells, and the ingress of upper and lower clam shell is provided with two semi-cylindrical canyons coordinating the outlet of bend tracheae, and the outlet port of upper and lower clam shell is provided with the semi-cylindrical canyon coordinating catalyst converter.
' Y ' word threeway point of intersection of described upper clam shell arranges aerobic sensing seat.
The beneficial effects of the utility model are: adopt stainless steel elbow air flue, clam shell design and catalyst converter to be welded into close coupling structure and shorten distance between catalytic converter and cylinder head to replace original Flange joint; Enable catalyzer Fast light-off, during reducing cold starting, discharge the problem of more waste gas because temperature is too low, and utilize clam shell waist to draw structure in, make exhaust stream form eddy current thus be evenly distributed on carrier front-end face, extend the working life of product.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Model utility is described in further detail by example below in conjunction with accompanying drawing; but following example is only the utility model example wherein; do not represent the rights protection scope that the utility model limits, rights protection scope of the present utility model is as the criterion with claim.
Embodiment
embodiment 1
See Fig. 1, suction port flange 1 and bend pipe air flue 2 formation air outlet flue welded together; Upper clam shell 4, lower clam shell 5 are merged, and bend pipe air flue 2 is gathered according to the welding of certain angle, form gas exhaust manifold body; Then gas exhaust manifold and catalytic converter assembly is welded into lambda sensor seat 3, catalyst converter 6, rear end cover 7, outlet(discharge) flange 8 and outer pipe 9 successively.
The entrance of suction port flange and four bend pipe air flues welds together, the outlet of bend pipe air flue is arranged in ' field ' font and is fixed on the ingress of clam shell design, the outlet port of clam shell design is fixed with catalyst converter, catalyst converter and rear end cover are tightly connected, and rear end cover lower end is fixed with outlet(discharge) flange and outer pipe successively; Described clam shell design is made up of upper and lower two ' Y ' shape clam shells, and the ingress of upper and lower clam shell is provided with two semi-cylindrical canyons coordinating the outlet of bend tracheae, and the outlet port of upper and lower clam shell is provided with the semi-cylindrical canyon coordinating catalyst converter.
' Y ' word threeway point of intersection of described upper clam shell arranges aerobic sensing seat, and this point of intersection caliber of clam shell design is less than outlet and the suction port caliber of clam shell design.
Claims (2)
1. a close coupling gas exhaust manifold and catalytic converter assembly, it comprises suction port flange, bend pipe air flue, catalyst converter, rear end cover, outlet(discharge) flange and outer pipe, it is characterized in that: the entrance of suction port flange and four bend pipe air flues welds together, the outlet of bend pipe air flue is arranged in ' field ' font and is fixed on the ingress of clam shell design, the outlet port of clam shell design is fixed with catalyst converter, catalyst converter and rear end cover are tightly connected, and rear end cover lower end is fixed with outlet(discharge) flange and outer pipe successively; Described clam shell design is made up of upper and lower two ' Y ' shape clam shells, and the ingress of upper and lower clam shell is provided with two semi-cylindrical canyons coordinating the outlet of bend tracheae, and the outlet port of upper and lower clam shell is provided with the semi-cylindrical canyon coordinating catalyst converter.
2. a kind of close coupling gas exhaust manifold and catalytic converter assembly according to claim 1, is characterized in that: ' Y ' word threeway point of intersection of described upper clam shell arranges aerobic sensing seat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420510350.8U CN204152617U (en) | 2014-09-05 | 2014-09-05 | A kind of close coupling gas exhaust manifold and catalytic converter assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420510350.8U CN204152617U (en) | 2014-09-05 | 2014-09-05 | A kind of close coupling gas exhaust manifold and catalytic converter assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204152617U true CN204152617U (en) | 2015-02-11 |
Family
ID=52510741
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420510350.8U Expired - Fee Related CN204152617U (en) | 2014-09-05 | 2014-09-05 | A kind of close coupling gas exhaust manifold and catalytic converter assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204152617U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104690108A (en) * | 2015-03-30 | 2015-06-10 | 西峡县内燃机进排气管有限责任公司 | Manufacturing method for tubular stainless steel manifold |
| CN105537790A (en) * | 2015-12-28 | 2016-05-04 | 天津卡达克汽车高新技术公司 | Process for welding exhaust manifolds and flange |
| CN105756762A (en) * | 2016-03-30 | 2016-07-13 | 柳州利和排气控制系统有限公司 | Tightly coupled exhaust manifold welding assembly |
-
2014
- 2014-09-05 CN CN201420510350.8U patent/CN204152617U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104690108A (en) * | 2015-03-30 | 2015-06-10 | 西峡县内燃机进排气管有限责任公司 | Manufacturing method for tubular stainless steel manifold |
| CN105537790A (en) * | 2015-12-28 | 2016-05-04 | 天津卡达克汽车高新技术公司 | Process for welding exhaust manifolds and flange |
| CN105756762A (en) * | 2016-03-30 | 2016-07-13 | 柳州利和排气控制系统有限公司 | Tightly coupled exhaust manifold welding assembly |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150211 |