CN202402111U - Three-way catalyst assembly of engine - Google Patents
Three-way catalyst assembly of engine Download PDFInfo
- Publication number
- CN202402111U CN202402111U CN2011205698223U CN201120569822U CN202402111U CN 202402111 U CN202402111 U CN 202402111U CN 2011205698223 U CN2011205698223 U CN 2011205698223U CN 201120569822 U CN201120569822 U CN 201120569822U CN 202402111 U CN202402111 U CN 202402111U
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- CN
- China
- Prior art keywords
- engine
- inlet flange
- connecting tube
- connecting pipe
- way catalyst
- 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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Abstract
The utility model discloses a three-way catalyst assembly of an engine, which comprises an inlet flange plate (2), a front connecting pipe (3), a front end cone (8), a packaging shell body (4), a rear end cone (5) and a rear connecting pipe (6), wherein the front connecting pipe (3) being a small S bending pipe is connected between the inlet flange plate (2) and the front end cone (8) and shifts outwards. The front connecting pipe of the three-way catalyst assembly structure is changed into the small S bending pipe, so that the airflow trend is changed, and a catalyst is conveniently arranged. Meanwhile, the airflow is enable to correctly blowing to the surface of the catalyst, so that the purpose of reducing discharge of pollutants is achieved.
Description
Technical field
The utility model relates to engine exhaust system, is specifically related to a kind of ternary catalytic device for engine assembly.
Background technique
Engine exhaust system is made up of several parts such as gas exhaust manifold, turbosupercharger, ternary catalyzing unit and thermal shields usually.Present most of non-supercharged engine; The needs that consideration discharges pollutants and controls; Gas exhaust manifold and ternary catalyzing unit adopt the close coupling structure; Be welded to form by lower half shell, packing casing, rear end awl, back connecting tube and outlet(discharge) flange dish etc. on inlet flange dish, the gas exhaust manifold, be suitable for the engine compartment less and arrange in the space.And for non-close coupling structure ternary catalyzing unit; Be usually placed near the middle passage on chassis; Be welded by inlet flange dish, import straight tube, front end awl, packing casing, rear end awl, outlet straight tube, outlet(discharge) flange dish etc., it is suitable for the chassis than large space, can't be arranged in the narrow and small engine compartment in space; Thereby cause catalyzer to leave engine exhaust port apart from remote, unfavorable to the discharging of car load.
Summary of the invention
What the utility model will solve is the problem that non-close coupling structure ternary catalyzing unit can't be arranged at small space, proposes a kind of ternary catalytic device for engine that improves structure.
For solving the problems of the technologies described above, the utility model is taked following technological scheme:
A kind of ternary catalytic converter assembly, it comprises inlet flange plate, preceding connecting tube, front end awl, packing casing, rear end awl and back connecting tube.Connecting tube is a little S bend pipe before said, be connected between inlet flange dish and the front end awl, and outwards skew.
The utility model is through making bend pipe to catalyst converter front end straight tube; Outwards skew simultaneously; Form the little S structure of a complicacy, through little S bend pipe catalyst arrangement in the position nearer apart from engine exhaust port, and carry out the guiding of gas exhaust manifold air flue and catalyzer air-flow with it; Make engine exhaust as far as possible large size contact with catalyzer, reach and reduce the purpose discharge pollutants.
Further, packing casing is provided with the catalyst converter reinforcing bracket, and fixing ternary catalytic converter assembly prevents the purpose that ruptures to improve mode, to reach.
It is thus clear that the utility model can change the air-flow trend through little S bend pipe, make things convenient for the layout of catalyzer, guarantee that simultaneously air-flow correctly blows to catalyst surface, reach and reduce the purpose that discharges pollutants.
Description of drawings
Fig. 1 is the plan view of the utility model ternary catalytic converter assembly;
Fig. 2 is the side view of the utility model ternary catalytic converter assembly;
Fig. 3 is the plan view of the utility model ternary catalytic converter assembly.
Among the figure, 1, stud 2, inlet flange dish 3, preceding connecting tube 4, packing casing 5, rear end awl 6, back connecting tube 7, post oxygen sensor seat 8, front end awl 9, catalyst converter reinforcing bracket 10, outlet(discharge) flange dish 11, thermal shield support.
Embodiment
Below in conjunction with accompanying drawing and instance the utility model is described further:
Referring to Fig. 1, Fig. 2 and Fig. 3; The structure of this ternary catalytic converter assembly is following: stud 1 is through being screwed on the inlet flange dish 2, and preceding connecting tube 3 is little S bend pipe, and its front end is connected on the inlet flange dish 2; The rear end is welded on the front end awl 8; End points through S shape changes, and changes the position of back end catalyst, with guarantee engine exhaust smooth and easy and positive blow to catalyst surface.Catalyzer is fixed on packing casing 4 the insides through liner; Back connecting tube 6 one ends are welded on the rear end awl 5; One end is welded on the outlet(discharge) flange dish 10; And be welded on the packing casing 4 through rear end awl 5, on the connecting tube 6 of back, a post oxygen sensor seat 7 is being set, be used for assembling the composition that lambda sensor detects exhaust and change.Catalyst converter reinforcing bracket 9 one ends are connected on the packing casing 4 of catalyst converter, and an end is connected on the engine cylinder-body, to improve the mode of ternary catalyzing unit, prevent the fracture that causes because of engine luggine.In order to prevent that peripheral component from being scalded, on the packing casing 4 of catalyst converter, be welded with four identical thermal shield supports 11, be used for fixing as thermal shield.
Claims (2)
1. ternary catalytic device for engine assembly, it comprises inlet flange plate (2), preceding connecting tube (3), front end awl (8), packing casing (4), rear end awl (5) and back connecting tube (6); It is characterized in that: connecting tube (3) is a little S bend pipe before said, be connected between inlet flange dish (2) and the front end awl (8), and outwards skew.
2. ternary catalytic device for engine assembly according to claim 1 is characterized in that: packing casing (4) is provided with catalyst converter reinforcing bracket (9), fixedly ternary catalytic converter assembly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205698223U CN202402111U (en) | 2011-12-31 | 2011-12-31 | Three-way catalyst assembly of engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205698223U CN202402111U (en) | 2011-12-31 | 2011-12-31 | Three-way catalyst assembly of engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202402111U true CN202402111U (en) | 2012-08-29 |
Family
ID=46699762
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011205698223U Expired - Fee Related CN202402111U (en) | 2011-12-31 | 2011-12-31 | Three-way catalyst assembly of engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202402111U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108397266A (en) * | 2018-04-26 | 2018-08-14 | 清华大学苏州汽车研究院（相城） | A kind of monolith honeycomb catalysts intake elbow hot gas bulging process equipment and processing technology |
| CN116378806A (en) * | 2023-03-21 | 2023-07-04 | 泰州鑫宇精工股份有限公司 | Accurate casing of automobile front catalysis air inlet cone |
-
2011
- 2011-12-31 CN CN2011205698223U patent/CN202402111U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108397266A (en) * | 2018-04-26 | 2018-08-14 | 清华大学苏州汽车研究院（相城） | A kind of monolith honeycomb catalysts intake elbow hot gas bulging process equipment and processing technology |
| CN116378806A (en) * | 2023-03-21 | 2023-07-04 | 泰州鑫宇精工股份有限公司 | Accurate casing of automobile front catalysis air inlet cone |
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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: 20120829 Termination date: 20171231 |