CN113578051A - Automobile exhaust pipeline with exhaust gas treatment function - Google Patents
Automobile exhaust pipeline with exhaust gas treatment function Download PDFInfo
- Publication number
- CN113578051A CN113578051A CN202110953897.XA CN202110953897A CN113578051A CN 113578051 A CN113578051 A CN 113578051A CN 202110953897 A CN202110953897 A CN 202110953897A CN 113578051 A CN113578051 A CN 113578051A
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- Prior art keywords
- exhaust
- exhaust pipeline
- pressure
- pressure sensing
- pipeline
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Links
- 239000007788 liquid Substances 0.000 claims abstract description 30
- 239000007789 gas Substances 0.000 claims abstract description 28
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 28
- 238000005507 spraying Methods 0.000 claims abstract description 17
- 239000006185 dispersion Substances 0.000 claims abstract description 11
- SOQBVABWOPYFQZ-UHFFFAOYSA-N oxygen(2-);titanium(4+) Chemical compound [O-2].[O-2].[Ti+4] SOQBVABWOPYFQZ-UHFFFAOYSA-N 0.000 claims abstract description 6
- 239000002912 waste gas Substances 0.000 claims abstract description 5
- 238000000746 purification Methods 0.000 claims description 11
- NRTLIYOWLVMQBO-UHFFFAOYSA-N 5-chloro-1,3-dimethyl-N-(1,1,3-trimethyl-1,3-dihydro-2-benzofuran-4-yl)pyrazole-4-carboxamide Chemical compound C=12C(C)OC(C)(C)C2=CC=CC=1NC(=O)C=1C(C)=NN(C)C=1Cl NRTLIYOWLVMQBO-UHFFFAOYSA-N 0.000 claims description 7
- 239000007921 spray Substances 0.000 claims description 5
- 238000010030 laminating Methods 0.000 claims description 3
- 238000009423 ventilation Methods 0.000 claims description 3
- 230000001699 photocatalysis Effects 0.000 abstract description 8
- 238000007146 photocatalysis Methods 0.000 abstract description 7
- 239000010426 asphalt Substances 0.000 abstract description 2
- 239000004568 cement Substances 0.000 abstract description 2
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 14
- 239000004408 titanium dioxide Substances 0.000 description 7
- RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- MWUXSHHQAYIFBG-UHFFFAOYSA-N Nitric oxide Chemical compound O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 3
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 238000004891 communication Methods 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 239000000809 air pollutant Substances 0.000 description 1
- 231100001243 air pollutant Toxicity 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 229910003460 diamond Inorganic materials 0.000 description 1
- 239000010432 diamond Substances 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000002105 nanoparticle Substances 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/92—Chemical or biological purification of waste gases of engine exhaust gases
- B01D53/94—Chemical or biological purification of waste gases of engine exhaust gases by catalytic processes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/007—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by irradiation
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N13/00—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00
- F01N13/08—Other arrangements or adaptations of exhaust conduits
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2255/00—Catalysts
- B01D2255/20—Metals or compounds thereof
- B01D2255/207—Transition metals
- B01D2255/20707—Titanium
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2255/00—Catalysts
- B01D2255/80—Type of catalytic reaction
- B01D2255/802—Photocatalytic
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Combustion & Propulsion (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Biomedical Technology (AREA)
- Environmental & Geological Engineering (AREA)
- Toxicology (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Treating Waste Gases (AREA)
- Catalysts (AREA)
- Exhaust Gas Treatment By Means Of Catalyst (AREA)
- Exhaust Gas After Treatment (AREA)
Abstract
The invention discloses an automobile exhaust pipeline with exhaust gas treatment, which relates to the technical field of automobile exhaust pipelines, and comprises an exhaust pipeline and is characterized in that: the pressure sensing spraying components are at least one in number and are all arranged on the pipe wall of the exhaust pipeline, each pressure sensing spraying component is provided with a normally open water inlet end and a pressure sensing water outlet end, and the pressure sensing water outlet ends are positioned on the inner side of the exhaust pipeline; the container, the container intussuseption is filled with waste gas purifying liquid, the container is installed in the position that is close to exhaust duct in the car. The invention utilizes the principle that the pressure in the exhaust pipeline is less than the external atmospheric pressure and converts the pressure into the kinetic energy for opening the pressure-sensitive spraying component, thereby synchronously spraying the nano titanium dioxide dispersion liquid when the tail gas is discharged, the dispersion liquid moves along with the liquid and is finally coated on the cement pavement, the asphalt pavement and other open-air fields, and the photocatalysis is realized under the irradiation of sunlight.
Description
Technical Field
The invention relates to the technical field of automobile exhaust pipelines, in particular to an automobile exhaust pipeline with an exhaust gas treatment function.
Background
The titanium dioxide photocatalytic nano particles have the capability of capturing and decomposing organic and inorganic air pollutants, can be used for treating automobile exhaust to reduce the emission of vehicles and purify harmful gases such as nitrogen oxide, sulfur dioxide and the like.
However, the titanium dioxide photocatalysis must be carried out under ultraviolet rays, and a certain time is required for purification, and although titanium dioxide photocatalysis can be carried out by adding an ultraviolet lamp into an exhaust gas treatment device in the prior art, the flow rate of gas is high, and the purification effect cannot be achieved.
At present, the research of photocatalysis exhaust treatment by coating titanium dioxide on the road surface appears in the market, and if the titanium dioxide can be combined with an automobile exhaust emission pipeline, the titanium dioxide has important environmental protection significance.
Disclosure of Invention
The present invention is directed to solving the above problems and providing an exhaust line for an automobile having an exhaust gas treatment.
In order to achieve the purpose, the invention adopts the following technical scheme:
an automobile exhaust pipeline with exhaust treatment, including the exhaust pipeline, still includes:
the pressure sensing spraying components are at least one in number and are all arranged on the pipe wall of the exhaust pipeline, each pressure sensing spraying component is provided with a normally open water inlet end and a pressure sensing water outlet end, and the pressure sensing water outlet ends are positioned on the inner side of the exhaust pipeline;
the device comprises a container, a pressure sensing spraying assembly and a control device, wherein the container is filled with waste gas purification liquid, is arranged in a position close to an exhaust pipeline in a vehicle and is communicated with a normally-open water inlet end of the pressure sensing spraying assembly through a connecting pipe;
the pressure sensing water outlet end is normally closed and has a lowest triggering pressure threshold value, and when the pressure in the exhaust pipeline is lower than the lowest triggering pressure threshold value, the pressure sensing water outlet end is opened.
Optionally, the waste gas purification liquid adopts nano titanium dioxide dispersion liquid.
Optionally, the pressure sensitive spray assembly comprises:
the shell is arranged on the exhaust pipeline and communicated with the connecting pipe, and a water through hole communicated with the outside is formed in the shell;
the limiting block is positioned in the shell, and the area of the limiting block is larger than that of the limber hole;
the polished rod is arranged in the water through hole in a clearance mode and is fixed with the limiting block;
the spring is arranged among the polish rod, the shell and the limiting block;
the number of the vent holes is at least one, and the vent holes are formed in the inner wall of the exhaust pipeline and one side of the shell;
the baffle plate is fixedly connected with the polish rod, and all the vent holes are shielded when the baffle plate is attached to the inner surface of the exhaust pipeline.
Optionally, one end of the baffle close to the polish rod is provided with a radian, and one end of the baffle far away from the exhaust pipeline is a plane.
Optionally, at least one microneedle is disposed on the plane of the baffle.
The invention has the following advantages:
the invention utilizes the principle that the pressure in the exhaust pipeline is less than the external atmospheric pressure and converts the pressure into the kinetic energy for opening the pressure-sensitive spraying component, thereby synchronously spraying the nano titanium dioxide dispersion liquid when the tail gas is discharged, the dispersion liquid moves along with the liquid and is finally coated on the cement pavement, the asphalt pavement and other open-air fields, and the photocatalysis is realized under the irradiation of sunlight.
The invention has the outstanding characteristics that the photocatalysis is carried out after the tail gas is discharged, so that enough time is provided for purifying the surrounding waste gas, and dispersion liquid can be sprayed less or more along with the change of the air pressure in the exhaust pipeline, so that the pollution of the tail gas to the environment can be synchronously compensated, no additional energy source is needed for driving, and the low carbon and energy saving effects are realized.
Drawings
FIG. 1 is a general schematic diagram of an embodiment of the present invention;
FIG. 2 is an enlarged view of portion A of FIG. 1 according to the present invention;
FIG. 3 is a general schematic view of a second embodiment of the present invention;
FIG. 4 is an enlarged view of portion B of FIG. 2 according to the present invention;
fig. 5 is a schematic view of the exhaust state in the second embodiment of the present invention.
In the figure: 1 exhaust duct, 2 container, 3 inlet tube, 4 exhaust gas purification liquid, 5 connecting pipes, 6 casing, 7 ventilation holes, 8 baffle, 9 limber holes, 10 polished rod, 11 spring, 12 stopper.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
Example one
Referring to fig. 1 and 2, the container 2 may be rectangular, cylindrical or irregular, and is mainly used for containing the exhaust gas purifying liquid 4, in this embodiment, the exhaust gas purifying liquid 4 is a nano titanium dioxide dispersion liquid, and the titanium dioxide can purify exhaust gas such as sulfur dioxide in the surrounding air through ultraviolet photocatalysis.
The container 2 is installed in the vehicle at a position close to the exhaust duct 1, but the container 2 should not be disposed on the exhaust duct 1, and the exhaust duct 1 is easily bent due to its large weight.
The container 2 is in communication with the normally open water end of the pressure sensitive spray assembly by means of a connecting tube 5, see fig. 2, i.e. in communication with a housing 6 in the pressure sensitive spray assembly.
The pressure sensing spraying assembly is at least one in number and is arranged on the pipe wall of the exhaust pipeline 1, the pressure sensing spraying assembly is provided with a normally open water inlet end and a pressure sensing water outlet end, and the pressure sensing water outlet end is positioned on the inner side of the exhaust pipeline 1.
The pressure-sensitive spraying assembly comprises the following components:
the welding has casing 6 on exhaust duct 1, and casing 6 and connecting pipe 5 intercommunication, and the through-hole should be seted up at the top of casing 6, and the through-hole intercommunication at connecting pipe 5 and casing 6 top, the through-hole are the end of intaking of pressure sensitive spray assembly promptly, do not shelter from therefore as the normal open inlet tube because of the through-hole.
The shell 6 is provided with a water through hole 9 communicated with the outside, and the water through hole 9 can be shielded by the baffle 8.
The shell 6 is provided with a limiting block 12, the area of the limiting block 12 is larger than that of the limber hole 9, and the cross section of the limiting block 12 is circular, so that the limiting block can be prevented from penetrating through the limber hole 9.
A polish rod 10 is arranged in the gap of the limber hole 9, the polish rod 10 is fixed with a limiting block 12, the polish rod 10 is of a rod-shaped structure with a smooth surface, and the surface friction coefficient is small.
The spring 11 is arranged among the polished rod 10, the shell 6 and the limiting block 12, and the spring 11 plays a role in driving the limiting block 12 to reset.
Spring 11 can also play and carry out secondary treatment to exhaust gas purification liquid 4, because automobile exhaust pipe 1 is the past exhaust of torrent form, therefore can cause the fluctuation of pressure, make spring 11 continuous concertina movement in the fluctuation, can cooperate torrent form exhaust to stretch out and draw back through setting up spring 11, carry out simple processing to exhaust gas purification liquid 4 in the flexible of spring 11, the effect that the stirring was mixed has been played, make exhaust gas purification liquid 4 more even, and dispersibility can be better.
The number of the vent holes 7 is at least one, and the vent holes 7 are arranged on the inner wall of the exhaust duct 1 and one side of the shell 6, and the specific position can be referred to in fig. 2.
Baffle 8 and polished rod 10 fixed connection, because stopper 12, polished rod 10 and baffle 8 three are fixed, therefore stopper 12's displaceable distance is the biggest displacement distance of baffle 8.
With all ventilation holes 7 sheltered from when baffle 8 and exhaust duct 1's the internal surface laminating, in this embodiment, the one end that baffle 8 is close to polished rod 10 possesses the radian, the internal surface of laminating exhaust duct 1 that this radian can be better, the one end that exhaust duct 1 was kept away from to baffle 8 is the plane, and the reduction that this plane can maximize is to the gaseous interference in exhaust duct 1.
The pressure sensing water outlet end is normally closed and has the lowest triggering pressure threshold value, the lowest triggering pressure threshold value is the minimum working load of the spring 11, the limiting block 12 drives the baffle plate 8 to be attached to the inner surface of the exhaust pipeline 1 through the polished rod 10 under the action of the spring 11, and at the moment, the baffle plate 8 is in a static state due to the fact that the air pressure of the upper side and the air pressure of the lower side of the baffle plate 8 are equal.
When the pressure in the exhaust pipeline 1 is lower than the lowest triggering pressure threshold value, the pressure sensing water outlet end is opened, otherwise, the pressure sensing water outlet end is closed all the time, so that the waste caused by spraying the dispersion liquid in places where the automobile is in a static state or in a room and the like, wherein the running speed is slow and ultraviolet rays cannot be irradiated can be avoided.
Example two
Referring to fig. 3, 4 and 5, in the present embodiment, on the basis of the first embodiment, at least one microneedle 112 is disposed on the plane of the baffle plate 8. When the number of the microneedles 12 is large, the microneedles 12 are arranged in one of a circular array, a rectangular array, and a diamond array. The setting of micropin 12 can be dispersed the liquid that moves to here, and when liquid contacted micropin 12, can move to the pointed end and separate along the surface of micropin under the effect of surface tension, originally great, continuous drop is dispersed into less drop in this in-process to can be better mix with gas.
Referring to fig. 5, when the exhaust pipe 1 exhausts, when gas passes through the exhaust pipe 1, according to the principle of aerodynamics, the flow rate is faster, the pressure is lower, and thus the pressures on both sides of the baffle plate 8 are unbalanced, the external atmospheric pressure can pass through the vent holes 7 to push the baffle plate 8 to separate from the inner surface of the exhaust pipe 1 from the attached state, and during separation, under the action of hydraulic pressure, the exhaust gas purification liquid 4 (nano titanium dioxide dispersion liquid) enters the housing 6 through the connecting pipe 5 and is discharged through the water passing control 9, due to the tension of the liquid surface, most of the liquid can actually move along the polished rod 10 and the outer surface of the baffle plate 8 until separation, and the separated liquid is discharged along with the tail gas, which is equivalent to coating on roads, the ground and the like, and performs purification treatment on the surrounding gas under the irradiation of ultraviolet rays in sunlight.
Meanwhile, the spring 11 can realize smaller or larger compression along with the change of the air pressure in the exhaust pipeline 1, and when the automobile runs at high speed, the spring 11 is compressed to the lowest, so that the dispersion liquid can be discharged in a larger area for synchronously compensating the pollution of the tail gas to the environment.
The above description is only a preferred embodiment of the present invention, and not intended to be exhaustive or to limit the scope of the present invention, and any person skilled in the art can substitute or change the technical solution and the inventive concept of the present invention within the technical scope of the present invention.
Claims (5)
1. An automobile exhaust pipeline with exhaust treatment, including exhaust duct (1), characterized by still includes:
the pressure sensing spraying components are at least one in number and are all arranged on the pipe wall of the exhaust pipeline (1), each pressure sensing spraying component is provided with a normally open water inlet end and a pressure sensing water outlet end, and the pressure sensing water outlet ends are located on the inner side of the exhaust pipeline (1);
the device comprises a container (2), wherein waste gas purification liquid (4) is filled in the container (2), the container (2) is installed in a position close to an exhaust pipeline (1) in the vehicle, and the container (2) is communicated with a normally-open water inlet end of a pressure sensing spraying assembly through a connecting pipe (5);
the pressure sensing water outlet end is normally closed and has a lowest triggering pressure threshold value, and when the pressure in the exhaust pipeline (1) is lower than the lowest triggering pressure threshold value, the pressure sensing water outlet end is opened.
2. The exhaust pipeline with exhaust gas treatment function of claim 1, wherein the exhaust gas purifying liquid (4) is nano titanium dioxide dispersion liquid.
3. The exhaust pipe with exhaust treatment of claim 1, wherein the pressure sensitive spray assembly comprises:
the exhaust pipe comprises a shell (6) arranged on an exhaust pipeline (1), wherein the shell (6) is communicated with a connecting pipe (5), and a water through hole (9) communicated with the outside is formed in the shell (6);
a limiting block (12) positioned in the shell (6), wherein the area of the limiting block (12) is larger than that of the limber hole (9);
the polish rod (10) is arranged in the limber hole (9) in a clearance mode, and the polish rod (10) is fixed with the limiting block (12);
the spring (11), the said spring (11) is set up among polished rod (10), body (6) and limited block (12);
the number of the vent holes (7) is at least one, and the vent holes (7) are formed in the inner wall of the exhaust pipeline (1) and one side of the shell (6);
the baffle (8), baffle (8) and polished rod (10) fixed connection, when baffle (8) and the interior surface laminating of exhaust duct (1) sheltered from all ventilation holes (7).
4. The exhaust pipeline with exhaust gas treatment function for the automobile as claimed in claim 3, wherein the end of the baffle (8) close to the polish rod (10) has a curvature, and the end of the baffle (8) far away from the exhaust pipeline (1) is a plane.
5. The exhaust pipe with exhaust gas treatment of the automobile according to claim 4, wherein the baffle (8) is provided with at least one microneedle (112) on the plane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110953897.XA CN113578051B (en) | 2021-08-19 | 2021-08-19 | Automobile exhaust pipeline with exhaust treatment function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110953897.XA CN113578051B (en) | 2021-08-19 | 2021-08-19 | Automobile exhaust pipeline with exhaust treatment function |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113578051A true CN113578051A (en) | 2021-11-02 |
| CN113578051B CN113578051B (en) | 2024-04-19 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110953897.XA Active CN113578051B (en) | 2021-08-19 | 2021-08-19 | Automobile exhaust pipeline with exhaust treatment function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113578051B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05132095A (en) * | 1991-11-06 | 1993-05-28 | Shibuya Kogyo Co Ltd | Replenishing valve apparatus |
| CN2619058Y (en) * | 2003-05-28 | 2004-06-02 | 李寿芳 | Purifier for automobile exhaust gas |
| DE10334042A1 (en) * | 2003-07-25 | 2005-02-10 | Mann + Hummel Gmbh | Vacuum generation system using internal combustion engine exhaust pulsations is used to remove water from fuel filter and has non- return valve leading into exhaust pipe |
| CN108138635A (en) * | 2015-10-30 | 2018-06-08 | 大陆汽车有限公司 | For the device of the post processing of exhaust |
-
2021
- 2021-08-19 CN CN202110953897.XA patent/CN113578051B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05132095A (en) * | 1991-11-06 | 1993-05-28 | Shibuya Kogyo Co Ltd | Replenishing valve apparatus |
| CN2619058Y (en) * | 2003-05-28 | 2004-06-02 | 李寿芳 | Purifier for automobile exhaust gas |
| DE10334042A1 (en) * | 2003-07-25 | 2005-02-10 | Mann + Hummel Gmbh | Vacuum generation system using internal combustion engine exhaust pulsations is used to remove water from fuel filter and has non- return valve leading into exhaust pipe |
| CN108138635A (en) * | 2015-10-30 | 2018-06-08 | 大陆汽车有限公司 | For the device of the post processing of exhaust |
Also Published As
| Publication number | Publication date |
|---|---|
| CN113578051B (en) | 2024-04-19 |
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