CN203009016U - Three-way catalyst for turbocharging petrol engine - Google Patents
Three-way catalyst for turbocharging petrol engine Download PDFInfo
- Publication number
- CN203009016U CN203009016U CN 201220562732 CN201220562732U CN203009016U CN 203009016 U CN203009016 U CN 203009016U CN 201220562732 CN201220562732 CN 201220562732 CN 201220562732 U CN201220562732 U CN 201220562732U CN 203009016 U CN203009016 U CN 203009016U
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- reinforcing bracket
- air inlet
- housing
- suction tude
- catalyzing unit
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Abstract
The utility model relates to a three-way catalyst for protecting a turbocharging petrol engine, and the three-way catalyst includes an air inlet flange, an air inlet pipe, an air inlet end cover, an shell body, an air outlet end cover and an air outlet flange which are in a welding connection in sequence. Catalysts are encapsulated inside the catalyst shell body. The air inlet pipe is formed by a stainless steel tube in a bending mode, and the entity is in an 'S' shape. One end of the air inlet pipe is connected with the air inlet flange, and the other end is connected with the air inlet end cover. The inlet direction and the outlet direction are perpendicular to each other and are not in the same plane. The three-way catalyst is compact in structure, light in weight, and good in manufacturability, can not only improve the light-off conditions of the catalysts, but also reduce the arrangement space of catalyst.
Description
Technical field
The utility model relates to exhaust gas cleaner, is specifically related to the ternary catalyzing unit of motor.
Background technique
Along with the emission regulation demands of Chinese increasingly stringent with motor is fallen the requirement of oil consumption, the advantage of naturally aspirated engine is fewer and feweri, and the supercharged engine with power character, Economy advantage will become a kind of trend of alternate-engine development gradually.Compare with naturally aspirated engine, supercharged engine has increased pressurization system and corresponding auxiliary device, and these are had higher requirement with regard to the compactedness of giving engine arrangement.And, owing to having increased turbosupercharger, causing moving after ternary catalyzing unit, this ignition to catalyzer has also proposed Secretary.
The at present ternary catalyzing unit of gasoline supercharging engine design mainly has the following disadvantages: the first, in order to ensure the intensity of catalyst converter, catalyst converter air inlet pipeline and end cone often use cast-iron structure, not only weight is heavier, and cost is higher, cast-iron structure is unfavorable for the ignition of catalyzer and improves cold start emission because wall thickness, thermal capacity are high.The second, part ternary catalyzing unit air inlet pipeline and end cone adopt corrosion resistant plate punching press, welded structure form, but limited by stamping process and arrangement space, often can't realize the air flue grown, and assembly process process are difficult for guaranteeing.
The model utility content
For the deficiency that above-mentioned ternary catalyzing unit exists, the utility model provides a kind of compact structure, lightweight, good manufacturability, can improve the ignition condition of catalyzer, can dwindle again the supercharging gasoline engine ternary catalystic device structure of the arrangement space of catalyst converter.
The technical solution of the utility model is as follows:
A kind of ternary catalyzing unit of turbo supercharging gasoline engine, it comprises suction port flange, suction tude, suction port end cap, housing, air outlet end cap and the air outlet flange that is welded to connect successively, is packaged with catalyzer in the catalyst converter housing.Described suction tude adopts the Stainless Steel Tube bending to form, and integral body is the curved shape of serpentine, and the one end is connected with the suction port flange, and the other end is connected with the suction port end cap, and the inlet/outlet direction of described suction tude is not mutually vertically and in one plane.Be provided with three reinforcing brackets on described housing, be respectively the first reinforcing bracket, the second reinforcing bracket and the 3rd reinforcing bracket; The first reinforcing bracket is welded on housing one side, is connected with engine cylinder-body or engine components by bolt; The second reinforcing bracket is welded on the housing opposite side, is bolted with the 3rd reinforcing bracket one end, and the 3rd reinforcing bracket the other end is bolted on engine cylinder-body or engine components.
Compared to the prior art the utility model has the following advantages:
1, the ternary catalyzing unit suction tude is formed by the Stainless Steel Tube bending, is convenient to arrange conserve space.Lighter and be conducive to the ignition of catalyzer with the air inlet pipeline phase weight/power ratio of casting; Than corrosion resistant plate punching press, the catalyst converter intake duct moulding that is welded is more convenient and more easily realize arranging, has reduced welding, quality and better reliability.
2, suction tude is formed by the direct bending of Stainless Steel Tube, and cost is lower and easily satisfy the requirement of catalyst converter temperature tolerance.
3, the Stainless Steel Tube bending is serpentine, the inlet/outlet direction is not mutually vertically and in one plane, and have a bending section that surpasses 90 ° at least, make the suction tude flexible arrangement, be conducive to improve the assembly process process of ternary catalyzing unit on turbosupercharged engine.
Description of drawings
Accompanying drawing is the utility model external shape and structural representation, wherein:
Fig. 1 is plan view of the present utility model;
Fig. 2 is left view of the present utility model;
Fig. 3 is the suction tude connection diagram;
In figure: 1, pressurized machine, 2, the suction port flange, 3, bracket for heat insulation cover, 4, suction tude, 5, suction port end cap, 6, the catalyst converter housing, 7, liner, 8, three-way catalyst, 91, the first reinforcing bracket, the 92, second reinforcing bracket, the 93, the 3rd reinforcing bracket, 10, air outlet end cap, 11, the air outlet flange.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is further described:
Referring to Fig. 1 and Fig. 2, the ternary catalystic device structure of this turbo supercharging gasoline engine comprises suction port flange 2, suction tude 4, suction port end cap 5, housing 6, air outlet end cap 10 and the air outlet flange 11 that is welded to connect successively.Bracket for heat insulation cover 3 is welded on suction tude.Suction tude 4 one ends are connected with suction port flange 2, and the other end is connected with suction port end cap 5.Housing 6 one ends are connected with suction port end cap 5, the other end is connected with air outlet end cap 10, be packaged with three-way catalyst 8 in the catalyst converter housing, fixing by liner 7 between three-way catalyst 8 and catalyst converter housing 6, catalyst converter housing both sides are welded with respectively the first reinforcing bracket 91 and the second reinforcing bracket 92, the three reinforcing brackets 93 and the second reinforcing bracket 92 and are bolted.Catalyst converter air outlet end cap 10 welds together with air outlet flange 11.
As shown in Figure 3, suction tude 4 integral body are the curved shape structure that is similar to serpentine, and this pipeline inlet/outlet direction mutually vertically and not in one plane, this structure has not only realized the layout of ternary catalyzing unit dexterously, and saved to greatest extent arrangement space.When ternary catalyzing unit was connected with pressurized machine, this structure had reserved assembly space to setting tool, had improved the assembly process process of suction port flange 2 with pressurized machine 1.Suction tude 4 one ends are connected with suction port flange 2, and the other end is connected with suction port end cap 5, have a bending section that surpasses 90 ° on suction tude at least, and have welded at least a bracket for heat insulation cover 3 on suction tude.Suction tude 4 forms for the Stainless Steel Tube bending, and weight is lighter, and Stainless Steel Tube ratio of heat capacities pipeline casting is low, is conducive to the ignition of three-way catalyst.The Stainless Steel Tube warp architecture is by corrosion resistant plate impact briquetting, welded structure, arranges more flexibly, and easily realizes the air flue of growing and reduced welding, quality and better reliability.
As depicted in figs. 1 and 2, be welded with the first reinforcing bracket 91 on the ternary catalyzing unit housing and second reinforcing bracket 92, the first reinforcing bracket the other ends have mounting hole, can be connected with engine cylinder-body or miscellaneous part by bolt, ternary catalyzing unit is played a supportive role.The second reinforcing bracket 92 is connected with the 3rd reinforcing bracket 93 by bolt, the 3rd reinforcing bracket the other end can be connected with engine cylinder-body or miscellaneous part by mounting hole, three reinforcing brackets are used in conjunction with, and ternary catalyzing unit has been played good supporting effect and had assembly process process preferably.
Claims (4)
1. the ternary catalyzing unit of a turbo supercharging gasoline engine, it comprises suction port flange, suction tude, suction port end cap, housing, air outlet end cap and the air outlet flange that is welded to connect successively, is packaged with catalyzer in the catalyst converter housing; It is characterized in that: described suction tude adopts the Stainless Steel Tube bending to form, integral body is the curved shape of serpentine, the one end is connected with the suction port flange, and the other end is connected with the suction port end cap, and the inlet/outlet direction of described suction tude is not mutually vertically and in one plane.
2. the ternary catalyzing unit of turbo supercharging gasoline engine according to claim 1, is characterized in that: have a bending section that surpasses 90 ° on described suction tude at least.
3. the ternary catalyzing unit of turbo supercharging gasoline engine according to claim 1 and 2, is characterized in that: weld at least a bracket for heat insulation cover on described suction tude.
4. the ternary catalyzing unit of turbo supercharging gasoline engine according to claim 1 and 2, is characterized in that: be provided with three reinforcing brackets on described housing, be respectively the first reinforcing bracket, the second reinforcing bracket and the 3rd reinforcing bracket; The first reinforcing bracket is welded on housing one side, is connected with engine cylinder-body or engine components by bolt; The second reinforcing bracket is welded on the housing opposite side, is bolted with the 3rd reinforcing bracket one end, and the 3rd reinforcing bracket the other end is bolted on engine cylinder-body or engine components.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220562732 CN203009016U (en) | 2012-10-30 | 2012-10-30 | Three-way catalyst for turbocharging petrol engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220562732 CN203009016U (en) | 2012-10-30 | 2012-10-30 | Three-way catalyst for turbocharging petrol engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203009016U true CN203009016U (en) | 2013-06-19 |
Family
ID=48600622
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220562732 Expired - Lifetime CN203009016U (en) | 2012-10-30 | 2012-10-30 | Three-way catalyst for turbocharging petrol engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203009016U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109098829A (en) * | 2018-10-10 | 2018-12-28 | 芜湖鹤锐汽车零部件有限公司 | A kind of effective three-element catalytic air inlet pipe of automobile exhaust and its manufacturing method |
-
2012
- 2012-10-30 CN CN 201220562732 patent/CN203009016U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109098829A (en) * | 2018-10-10 | 2018-12-28 | 芜湖鹤锐汽车零部件有限公司 | A kind of effective three-element catalytic air inlet pipe of automobile exhaust and its manufacturing method |
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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 | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130619 |