CN209875261U - Novel three-way catalyst - Google Patents
Novel three-way catalyst Download PDFInfo
- Publication number
- CN209875261U CN209875261U CN201920302273.XU CN201920302273U CN209875261U CN 209875261 U CN209875261 U CN 209875261U CN 201920302273 U CN201920302273 U CN 201920302273U CN 209875261 U CN209875261 U CN 209875261U
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- China
- Prior art keywords
- air inlet
- end cone
- way catalyst
- fan blades
- waste gas
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/12—Improving ICE efficiencies
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- Exhaust Gas After Treatment (AREA)
Abstract
The utility model discloses a novel three way catalyst converter belongs to three way catalyst converter equipment technical field for the car, the utility model discloses an increase the even direction flabellum of arranging of round in traditional three way catalyst converter inlet end awl entry inner wall department, flabellum and entry central line out of plumb. When the waste gas enters the three-way catalytic converter and passes through the guide fan blades, the waste gas is forced to be guided by the fan blades to form uniform vortex, and then the waste gas enters the carrier. The mode of increasing the fan blades on the air inlet end cone forms uniform air flow, and the conversion efficiency of the three-way catalyst is improved. The waste gas uniformly enters the carrier after passing through the guide fan blades, and the waste gas is fully contacted with the catalyst in the carrier, so that the conversion efficiency of the three-way catalyst is improved, the content of pollutants discharged into the atmosphere is effectively reduced, and the requirements of the national six automobile exhaust emission regulations are met.
Description
Technical Field
The utility model belongs to the technical field of three way catalyst converter equipment for the car, concretely relates to novel three way catalyst converter.
Background
With the development of society, the environmental awareness of the public is stronger, and the emission of automobile exhaust is one of the main causes of environmental pollution. In order to control automobile exhaust, our country has come out of six-stage light automobile pollutant emission limit values and measurement methods, namely, the six countries are one of the strictest emission regulations in the world.
In an automobile exhaust system, a three-way catalyst is a main part for exhaust after-treatment, and is the most important part for meeting the requirements of national emission regulations. Because of the stricter regulations, the three-way catalytic converter is required to be close to the engine as much as possible, so that the catalyst can be ignited as early as possible, the peripheral space of the position close to the engine is narrow, the air inlet end cone of the three-way catalytic converter for the car at present cannot be designed into a conical shape, the distance between the axial lines of an inlet and an outlet and the included angle are larger and larger, the molded surface of the air inlet end cone is more and more irregular, and thus the airflow is not uniform when waste gas enters the front end surface of a carrier from the air inlet end cone, and the conversion efficiency of the three-way catalytic converter is obviously reduced due to the nonuniform airflow, so.
SUMMERY OF THE UTILITY MODEL
In order to avoid the irregular airflow nonuniformity that leads to of three way catalyst converter inlet end awl profile among the prior art, the utility model discloses an increase the even direction flabellum of arranging of round in traditional three way catalyst converter inlet end awl entry inner wall department, make waste gas get into the carrier after through the direction flabellum uniformly, make waste gas fully with the interior catalyst contact of carrier to three way catalyst's conversion efficiency has been improved, six automobile exhaust emission regulations requirements of state are reached simultaneously.
The utility model discloses a following technical scheme realizes:
a novel three-way catalytic converter comprises an air inlet flange 1, an air inlet pipe 2, a front oxygen sensor seat 3, an air inlet end cone 4, a catalytic converter shell 5, an air outlet end cone 6, a rear oxygen sensor seat 7 and an air outlet flange 8; the three-way catalytic converter is characterized in that the air inlet flange 1, the air inlet pipe 2, the air inlet end cone 4, the catalytic converter shell 5, the air outlet end cone 6 and the air outlet flange 8 are sequentially connected together in a welding manner to form the three-way catalytic converter, the front oxygen sensor seat 3 is positioned on the air inlet pipe 2, and the rear oxygen sensor seat 7 is positioned on the air outlet end cone 6;
the air inlet end cone 4 consists of an inlet 41, an end cone 42, an outlet 43 and guide fan blades 44; the inlet 41 and the outlet 43 are not on the same axis, and the end cone 42 is in an eccentric bell mouth shape; a circle of guide fan blades 44 which are uniformly distributed are arranged inside the inlet 41 of the air inlet end cone 4, the root of each guide fan blade 44 is connected with the inner wall of the inlet 41 into a whole, a certain angle theta (shown in figure 2) is formed between the guide fan blades and the axis of the inlet 41, and waste gas is blown by the fan blades and is forcibly turned by the circle of fan blades, so that uniform vortex is formed.
Further, the catalyst housing 5 encloses a carrier 9 therein and is fixed by a gasket 10.
Further, the carrier 9 is honeycomb ceramic, and the inner grid is coated with a catalyst for converting pollutants.
Further, the angle θ is between 20 ° and 45 °.
Compared with the prior art, the utility model has the advantages as follows:
the utility model discloses a three way catalyst converter adopts the integrated flabellum that has the air current direction function of inlet end awl entry, forces the direction to be even air current with waste gas, then even waste gas gets into behind the carrier, can fully and the on-carrier three way catalyst contact, effectively purifies the pollutant in the waste gas, has improved three way catalyst's conversion efficiency, has effectively reduced the content of discharging the pollutant in the atmosphere.
Drawings
FIG. 1 is a schematic structural view of a novel three-way catalyst of the present invention;
FIG. 2 is a cross-sectional view taken along line A-A of FIG. 1;
FIG. 3 is a schematic structural diagram of an inlet end cone of a novel three-way catalyst of the present invention;
in the figure: 1. the catalytic converter comprises an air inlet flange, 2 air inlet pipes, 3 front oxygen sensor bases, 4 air inlet end cones, 41 inlets, 42 end cones, 43 outlets, 44 guide fan blades, 5 catalytic converter shells, 6 air outlet end cones, 7 rear oxygen sensor bases, 8 air outlet flanges, 9 carriers and 10 gaskets.
Detailed Description
The present invention will be further explained with reference to the drawings and examples.
Example 1
As shown in fig. 1, a novel three-way catalyst comprises an air inlet flange 1, an air inlet pipe 2, a front oxygen sensor seat 3, an air inlet end cone 4, a catalyst shell 5, an air outlet end cone 6, a rear oxygen sensor seat 7 and an air outlet flange 8; the three-way catalytic converter is characterized in that the air inlet flange 1, the air inlet pipe 2, the air inlet end cone 4, the catalytic converter shell 5, the air outlet end cone 6 and the air outlet flange 8 are sequentially connected together in a welding manner to form the three-way catalytic converter, the front oxygen sensor seat 3 is positioned on the air inlet pipe 2, and the rear oxygen sensor seat 7 is positioned on the air outlet end cone 6;
the air inlet end cone 4 consists of an inlet 41, an end cone 42, an outlet 43 and guide fan blades 44; the inlet 41 and the outlet 43 are not on the same axis, and the end cone 42 is in an eccentric bell mouth shape; a circle of guide blades 44 which are uniformly distributed are arranged inside the inlet 41 of the air inlet end cone 4, the root of each guide blade 44 is connected with the inner wall of the inlet 41 into a whole, an angle theta (shown in figure 2) is formed between the guide blade and the axis of the inlet 41, the angle theta is required to be between 20 degrees and 45 degrees, and the exhaust gas is blown by the blades and is forcibly steered by the circle of blades, so that uniform vortex is formed.
As shown in fig. 2, the catalyst housing 5 encloses a carrier 9 and is fixed by a gasket 10; the carrier 9 is honeycomb ceramic, and the internal grid is coated with a catalyst for converting pollutants.
As shown in fig. 3, the air inlet end cone 4 is composed of an inlet 41, an end cone 42, an outlet 43 and a guide vane 44; the inlet 41 and the outlet 43 are not on one axis, and the end cone 42 is an eccentric bell mouth; a circle of guide fan blades 44 which are uniformly distributed are arranged inside the inlet 41 of the air inlet end cone 4, the root of each guide fan blade 44 is connected with the inner wall of the inlet 41 into a whole, and an angle is formed between each guide fan blade and the axis of the inlet 41.
The utility model discloses a novel three way catalyst converter's working process as follows:
the utility model discloses a back on the engine is installed to three way catalyst converter, engine exhaust waste gas gets into from air inlet flange (1), through intake pipe (2) back, get into inlet end awl (4), through direction flabellum (44) that the round was evenly arranged, the air current direction is forced the direction by the direction flabellum, form more even vortex, then the vortex passes through end awl 42, export 43, get into carrier (9), the pollutant in the waste gas passes through the catalytic action of catalyst and is purified, the waste gas through the purification is given vent to anger from the end awl 6 of giving vent to anger.
Claims (4)
1. A novel three-way catalytic converter is characterized by comprising an air inlet flange (1), an air inlet pipe (2), a front oxygen sensor seat (3), an air inlet end cone (4), a catalytic converter shell (5), an air outlet end cone (6), a rear oxygen sensor seat (7) and an air outlet flange (8); the three-way catalytic converter is characterized in that the air inlet flange (1), the air inlet pipe (2), the air inlet end cone (4), the catalytic converter shell (5), the air outlet end cone (6) and the air outlet flange (8) are sequentially connected together in a welding mode to form the three-way catalytic converter, the front oxygen sensor seat (3) is located on the air inlet pipe (2), and the rear oxygen sensor seat (7) is located on the air outlet end cone (6);
the air inlet end cone (4) consists of an inlet (41), an end cone (42), an outlet (43) and guide fan blades (44); the inlet (41) and the outlet (43) are not on the same axis, and the end cone (42) is in an eccentric bell mouth shape; a circle of guide fan blades (44) which are uniformly distributed are arranged inside an inlet (41) of the air inlet end cone (4), the root of each guide fan blade (44) is connected with the inner wall of the inlet (41) into a whole, a certain angle theta is formed between each guide fan blade and the axis of the inlet (41), and waste gas is blown by the fan blades and is forced to turn by the circle of fan blades, so that uniform vortex is formed.
2. A new three-way catalyst according to claim 1, characterized in that the catalyst housing (5) encloses a carrier (9) and is fixed by means of a gasket (10).
3. A new three-way catalyst according to claim 2, characterized in that the carrier (9) is a honeycomb ceramic, the internal grid being coated with a catalyst for the conversion of pollutants.
4. The novel three-way catalyst as claimed in claim 1, wherein the angle θ is between 20 ° and 45 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920302273.XU CN209875261U (en) | 2019-03-11 | 2019-03-11 | Novel three-way catalyst |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920302273.XU CN209875261U (en) | 2019-03-11 | 2019-03-11 | Novel three-way catalyst |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209875261U true CN209875261U (en) | 2019-12-31 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920302273.XU Active CN209875261U (en) | 2019-03-11 | 2019-03-11 | Novel three-way catalyst |
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| Country | Link |
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| CN (1) | CN209875261U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112412583A (en) * | 2020-11-30 | 2021-02-26 | 重庆长安汽车股份有限公司 | Three way catalyst converter, engine exhaust assembly and car |
| 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 |
-
2019
- 2019-03-11 CN CN201920302273.XU patent/CN209875261U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112412583A (en) * | 2020-11-30 | 2021-02-26 | 重庆长安汽车股份有限公司 | Three way catalyst converter, engine exhaust assembly and car |
| 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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