CN212079438U - Automobile three-way catalyst - Google Patents
Automobile three-way catalyst Download PDFInfo
- Publication number
- CN212079438U CN212079438U CN202020565716.7U CN202020565716U CN212079438U CN 212079438 U CN212079438 U CN 212079438U CN 202020565716 U CN202020565716 U CN 202020565716U CN 212079438 U CN212079438 U CN 212079438U
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- end cover
- way catalyst
- stage cylinder
- cylinder body
- air inlet
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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
- Y02T10/40—Engine management systems
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- Exhaust Gas After Treatment (AREA)
Abstract
The utility model discloses an automobile three-way catalyst, which belongs to the technical field of automobile catalyst manufacturing, and comprises a barrel body with an air inlet end cover and an air outlet end cover, wherein the air inlet end cover is connected with an air inlet flange through an air inlet pipe, the air outlet end cover is connected with an air outlet flange, the barrel body comprises a front-stage barrel body connected with the air inlet end cover and a rear-stage barrel body connected with the air outlet end cover, and the front-stage barrel body is connected with the rear-stage barrel body through a connecting end cover; a three-way catalyst is arranged in the front-stage cylinder body, and a particle catcher is arranged in the rear-stage cylinder body; the air inlet pipe is provided with a front oxygen sensor assembly, the connecting end cover is respectively provided with a first pressure sensor pipe, a rear oxygen sensor assembly and an exhaust temperature sensor assembly, and the air outlet end cover is provided with a second pressure sensor pipe. The utility model discloses can solve current three way catalyst converter packaging hardware and can not carry out the problem that the particulate matter was collected.
Description
Technical Field
The utility model belongs to the technical field of the car catalyst converter manufacturing technology and specifically relates to an automobile three way catalyst converter for among automobile exhaust system.
Background
The three-way catalytic converter is installed in the exhaust system of automobile to change the harmful gas exhausted from the tail gas of automobile into harmless gas, so that the tail gas of automobile can be purified. A three-way catalytic converter for an automobile shown in figure 1 comprises a cylinder body 03 with an air inlet end cover 04 and an air outlet end cover 05, wherein a low expansion type gasket is arranged between the inner wall of the cylinder body 03 and a three-way catalyst, a heat insulation cover 07 is arranged outside the cylinder body 03, the air inlet end cover 04 is connected with an air inlet flange 01 through an air inlet pipe 02, the air inlet flange 01 is connected with a turbocharger of the automobile, the air outlet end cover 05 is connected with an air outlet flange 06, the air outlet flange 06 is connected with an exhaust pipe of the automobile, a mounting bracket 08 is arranged on the air outlet flange 06, and the mounting bracket 08 is fixed on a gearbox. Because the three-way catalyst packaging device can not collect the particulate matters in the automobile exhaust in the using process, the three-way catalyst packaging device can not meet the emission regulation requirements of the currently-implemented national six-emission standard GB18352.6-2016 light automobile pollutant emission limit value and measurement method.
SUMMERY OF THE UTILITY MODEL
The utility model provides a three way catalyst converter of car, this three way catalyst converter of car can solve the problem that current three way catalyst converter packaging hardware can not carry out the particulate matter and collect.
In order to solve the above problem, the utility model discloses the technical scheme who adopts is: the automobile three-way catalyst comprises a cylinder body with an air inlet end cover and an air outlet end cover, wherein the air inlet end cover is connected with an air inlet flange through an air inlet pipe, the air outlet end cover is connected with an air outlet flange, the cylinder body comprises a front-stage cylinder body connected with the air inlet end cover and a rear-stage cylinder body connected with the air outlet end cover, and the front-stage cylinder body is connected with the rear-stage cylinder body through a connecting end cover; a three-way catalyst is arranged in the front-stage cylinder body, and a particle catcher is arranged in the rear-stage cylinder body; the air inlet pipe is provided with a front oxygen sensor assembly, the connecting end cover is respectively provided with a first pressure sensor pipe, a rear oxygen sensor assembly and an exhaust temperature sensor assembly, and the air outlet end cover is provided with a second pressure sensor pipe.
In the above technical solution, a more specific technical solution may also be: the inner diameter of the front-stage cylinder body is smaller than that of the rear-stage cylinder body, and the connecting end cover is a conical cylinder with a small front part and a large rear part.
Further: a front gasket is arranged between the front-stage cylinder and the three-way catalyst, and a rear gasket is arranged between the rear-stage cylinder and the particle catcher.
Further: and a heat insulation cover is arranged outside the barrel.
Further: and the air outlet flange is provided with a mounting bracket connected with an exhaust pipe of an automobile.
Since the technical scheme is used, compared with the prior art, the utility model following beneficial effect has:
1. the cylinder body of the three-way catalytic converter comprises a front-stage cylinder body connected with the air inlet end cover and a rear-stage cylinder body connected with the air outlet end cover, wherein the front-stage cylinder body is connected with the rear-stage cylinder body through the connecting end cover; the front-stage cylinder is internally provided with a three-way catalyst, the rear-stage cylinder is internally provided with a particle catcher, and the front-stage cylinder is provided with a catalyst carrier for purifying the exhaust of the internal combustion engine and a particle catcher carrier for catching exhaust particles, so that the problem that the existing three-way catalyst packaging device cannot collect the particles is solved, and the emission regulation requirements of GB18352.6-2016 light automobile pollutant emission limit and measurement method are met in performance.
2. The air inlet pipe is provided with the front oxygen sensor assembly, the connecting end cover is respectively provided with the first pressure sensor pipe, the rear oxygen sensor assembly and the exhaust temperature sensor assembly, and the air outlet end cover is provided with the second pressure sensor pipe; the first pressure sensor tube and the second pressure sensor tube are used for detecting the pressure values of the front end and the rear end in the rear-stage cylinder body, so that the quantity of collected carbon particles can be known, the temperature of the air inlet end of the particle trap is detected by the exhaust temperature sensor, the carbon particles can be successfully regenerated after reaching a certain quantity, and the particle trap is ensured not to be blocked and fail; meanwhile, the oxygen content in the tail gas detected by the front oxygen sensor assembly further enables the automobile ODB system to judge the combustion state of the automobile fuel, and the oxygen content in the tail gas detected by the rear oxygen sensor assembly further learns whether the catalytic reaction in the three-way catalyst carrier is normal or not, so that the normal work of the system is ensured.
3. Because the internal diameter of preceding stage barrel is less than the internal diameter of back stage barrel, connects the end cover and is the big cone of preceding little back, plays the water conservancy diversion effect of tail gas, has effectively reduced the air current resistance.
4. The heat insulation cover is arranged outside the cylinder body; the heat radiation of the system to the periphery can be reduced.
Drawings
Fig. 1 is a schematic structural view of a conventional three-way catalyst for an automobile.
Fig. 2 is a schematic structural diagram of an embodiment of the present invention.
Fig. 3 is an external view of an embodiment of the present invention.
Detailed Description
The invention will be described in more detail with reference to the following embodiments:
the automobile three-way catalyst shown in fig. 2 and 3 comprises a cylinder 3, a heat shield 7 is arranged outside the cylinder 3, a gas inlet end cover 4 and a gas outlet end cover 5 are arranged at two ends of the cylinder 3, the gas inlet end cover 5 is connected with a gas inlet flange 1 through a gas inlet pipe 2, and the gas outlet end cover 5 is connected with a gas outlet flange 6; the air inlet flange 1 is connected with a turbocharger of an automobile, the air outlet flange 6 is connected with an exhaust pipe of the automobile, and the air outlet flange 6 is provided with a mounting bracket 8 connected with the exhaust pipe of the automobile; the cylinder 3 comprises a front-stage cylinder 31 and a rear-stage cylinder 33, the front-stage cylinder 31 is connected with the rear-stage cylinder 33 through a connecting end cover 32, the inner diameter of the front-stage cylinder 31 is smaller than that of the rear-stage cylinder 33, and the connecting end cover 32 is a conical cylinder with a small front part and a large rear part; the front-stage cylinder 31 is connected with the air inlet end cover 4, and the rear-stage cylinder 33 is connected with the air outlet end cover 5; a three-way catalyst 9 is arranged in the front-stage cylinder 31, and a front gasket 10 is arranged between the front-stage cylinder 31 and the three-way catalyst 9; a particle catcher 11 is arranged in the rear-stage cylinder body 33, and a rear gasket 12 is arranged between the rear-stage cylinder body 33 and the particle catcher 11; the air inlet pipe 2 is provided with a front oxygen sensor assembly 16, the connecting end cover 32 is respectively provided with a first pressure sensor pipe 13, a rear oxygen sensor assembly 17 and an exhaust temperature sensor assembly 15, and the air outlet end cover is provided with a second pressure sensor pipe 14.
The utility model discloses a be equipped with three way catalyst in the preceding stage barrel, be equipped with particle catcher in the back level barrel, possess the catalyst converter carrier that purifies internal-combustion engine exhaust and carry out the particle catcher carrier of entrapment to the exhaust particulate matter, the problem that current three way catalyst converter packaging hardware can not carry out the particulate matter and collect is solved, the emission regulation requirement of "GB 18352.6-2016 light-duty car pollutant emission limit value and measuring method" has been satisfied in the performance, simultaneously, through the detection of first pressure sensor pipe and second pressure sensor pipe to the pressure value size of front end and rear end in the back level barrel, can learn how much that carbon particulate matter was collected, detect the inlet end temperature of particle catcher through exhaust temperature sensor, can make the carbon particle reach a certain amount and can regenerate smoothly, in order to ensure that particle catcher is not blocked up and become invalid; meanwhile, the oxygen content in the tail gas detected by the front oxygen sensor assembly further enables the automobile ODB system to judge the combustion state of the automobile fuel, and the oxygen content in the tail gas detected by the rear oxygen sensor assembly further learns whether the catalytic reaction in the three-way catalyst carrier is normal or not, so that the normal work of the system is ensured.
Claims (5)
1. The utility model provides an automobile three way catalyst converter, is including the barrel that has inlet end cover and the end cover of giving vent to anger, inlet end cover is connected with the air inlet flange through the intake pipe, the end cover of giving vent to anger is connected with the flange of giving vent to anger, its characterized in that: the cylinder body comprises a front-stage cylinder body connected with the air inlet end cover and a rear-stage cylinder body connected with the air outlet end cover, and the front-stage cylinder body is connected with the rear-stage cylinder body through a connecting end cover; a three-way catalyst is arranged in the front-stage cylinder body, and a particle catcher is arranged in the rear-stage cylinder body; the air inlet pipe is provided with a front oxygen sensor assembly, the connecting end cover is respectively provided with a first pressure sensor pipe, a rear oxygen sensor assembly and an exhaust temperature sensor assembly, and the air outlet end cover is provided with a second pressure sensor pipe.
2. The automotive three-way catalyst according to claim 1, characterized in that: the inner diameter of the front-stage cylinder body is smaller than that of the rear-stage cylinder body, and the connecting end cover is a conical cylinder with a small front part and a large rear part.
3. The automobile three-way catalyst according to claim 1 or 2, characterized in that: a front gasket is arranged between the front-stage cylinder and the three-way catalyst, and a rear gasket is arranged between the rear-stage cylinder and the particle catcher.
4. The automotive three-way catalyst according to claim 3, characterized in that: and a heat insulation cover is arranged outside the barrel.
5. The automotive three-way catalyst according to claim 4, characterized in that: and the air outlet flange is provided with a mounting bracket connected with an exhaust pipe of an automobile.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020565716.7U CN212079438U (en) | 2020-04-16 | 2020-04-16 | Automobile three-way catalyst |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020565716.7U CN212079438U (en) | 2020-04-16 | 2020-04-16 | Automobile three-way catalyst |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212079438U true CN212079438U (en) | 2020-12-04 |
Family
ID=73594611
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020565716.7U Active CN212079438U (en) | 2020-04-16 | 2020-04-16 | Automobile three-way catalyst |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212079438U (en) |
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2020
- 2020-04-16 CN CN202020565716.7U patent/CN212079438U/en active Active
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