CN107448267B - Air inlet filter assembly for air-assisted SCR aftertreatment system - Google Patents
Air inlet filter assembly for air-assisted SCR aftertreatment system Download PDFInfo
- Publication number
- CN107448267B CN107448267B CN201710833538.4A CN201710833538A CN107448267B CN 107448267 B CN107448267 B CN 107448267B CN 201710833538 A CN201710833538 A CN 201710833538A CN 107448267 B CN107448267 B CN 107448267B
- Authority
- CN
- China
- Prior art keywords
- connector
- filter screen
- section
- connecting section
- sealing ring
- 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.)
- Active
Links
- 238000007789 sealing Methods 0.000 claims abstract description 49
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 claims abstract description 23
- 239000004202 carbamide Substances 0.000 claims abstract description 23
- 230000007704 transition Effects 0.000 claims abstract description 13
- 238000009434 installation Methods 0.000 claims description 11
- 238000003780 insertion Methods 0.000 claims 1
- 230000037431 insertion Effects 0.000 claims 1
- 238000001914 filtration Methods 0.000 abstract description 8
- 230000008878 coupling Effects 0.000 description 10
- 238000010168 coupling process Methods 0.000 description 10
- 238000005859 coupling reaction Methods 0.000 description 10
- 239000007789 gas Substances 0.000 description 8
- 239000012535 impurity Substances 0.000 description 3
- 238000002347 injection Methods 0.000 description 3
- 239000007924 injection Substances 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 3
- MWUXSHHQAYIFBG-UHFFFAOYSA-N nitrogen oxide Inorganic materials O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 239000008187 granular material Substances 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 238000007792 addition Methods 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 238000010531 catalytic reduction reaction Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- VUZPPFZMUPKLLV-UHFFFAOYSA-N methane;hydrate Chemical compound C.O VUZPPFZMUPKLLV-UHFFFAOYSA-N 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- QJGQUHMNIGDVPM-UHFFFAOYSA-N nitrogen group Chemical group [N] QJGQUHMNIGDVPM-UHFFFAOYSA-N 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 229910001868 water Inorganic materials 0.000 description 1
Classifications
-
- 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
- F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
- F01N3/08—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
- F01N3/10—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust
- F01N3/18—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by methods of operation; Control
- F01N3/20—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by methods of operation; Control specially adapted for catalytic conversion ; Methods of operation or control of catalytic converters
- F01N3/2066—Selective catalytic reduction [SCR]
- F01N3/2073—Selective catalytic reduction [SCR] with means for generating a reducing substance from the exhaust gases
-
- 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
- F01N2610/00—Adding substances to exhaust gases
- F01N2610/02—Adding substances to exhaust gases the substance being ammonia or urea
-
- 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
- F01N2610/00—Adding substances to exhaust gases
- F01N2610/14—Arrangements for the supply of substances, e.g. conduits
- F01N2610/1426—Filtration means
-
- 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
- F01N2610/00—Adding substances to exhaust gases
- F01N2610/14—Arrangements for the supply of substances, e.g. conduits
- F01N2610/1433—Pumps
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Exhaust Gas After Treatment (AREA)
- Filtering Of Dispersed Particles In Gases (AREA)
Abstract
A filter subassembly that admits air for air-assisted SCR aftertreatment system, including quick connector and connecting piece, the connecting piece includes mount pad, transition connector and the urea pump connector that connect gradually along the gas flow direction, and mount pad, transition connector and urea pump connector all set up to hollow tubular structure, are provided with the filter screen between transition connector and the urea pump connector, are provided with locking part in the transition connector, and quick connector's inserted section stretches into in the mount pad and is connected with the locking part cooperation, and quick connector's linkage segment is linked together with the intake pipe. The invention adopts a split design, can integrate the air inlet and filtering functions, has compact structure, effectively protects the metering jet pump of the precise component and prolongs the service life of the metering jet pump. In addition, the air filter screen and the sealing ring are convenient to replace, convenient to maintain and remove faults when blockage occurs, convenient to maintain and worthy of popularization.
Description
Technical Field
The invention relates to the technical field of SCR, in particular to an air inlet filter assembly for an air auxiliary SCR aftertreatment system.
Background
The most important pollutant of the diesel engine is NOx, and in order to reduce the emission of NOx, the main technical route used in the automobile industry is Selective Catalytic Reduction (SCR), namely, ammonia, urea or other nitrogen-containing compounds are sprayed into the tail gas containing NOx, and nitrogen oxides are reduced into nitrogen, carbon dioxide and water under the action of a catalyst. When the air-assisted SCR aftertreatment system is adopted, an important component urea pump is a precision metering type jet pump, and the precision metering type jet pump has certain requirements on the impurity content and the particle content in the air during application. Therefore, to protect the delicate components in the urea injection pump, the air from the air compressor is filtered to remove particulates and impurities before entering the urea injection pump to reduce the impurity and particulate content of the compressed air.
Disclosure of Invention
The invention aims to solve the problems in the prior art, designs an air inlet filter assembly for an air-assisted SCR aftertreatment system, can effectively filter compressed air entering a urea injection pump, and has the advantages of simple structure, reasonable and compact arrangement and convenience in maintenance.
The technical scheme of the invention is as follows: the invention provides an intake air filter assembly for an air-assisted SCR aftertreatment system, which is characterized in that: including quick connector and connecting piece, the connecting piece includes mount pad, transitional coupling body and the urea pump connector that connect gradually along the gas flow direction, mount pad, transitional coupling body and urea pump connector all set up to hollow tubular structure, be provided with the filter screen between transitional coupling body and the urea pump connector, be provided with locking part in the transitional coupling body, quick connector's inserted section stretches into in the mount pad and is connected with locking part cooperation, quick connector's connecting section is linked together with the intake pipe.
Above-mentioned urea pump connector is including connecting section I and the connecting section II that set up around, the internal diameter of connecting section II is greater than the internal diameter of connecting section I, the transitional coupling body is including grafting section and the connecting section III that set up around, the inner wall threaded connection of grafting section and connecting section II, the mount pad is with the inner wall threaded connection of connecting section III, the filter screen setting is in the space that connecting section I, the inner wall of connecting section II and grafting section formed. Through split design for admit air and filtration function realize integrating, reduced the extra installation space of extra installation filter equipment, and also be convenient for dismouting in order to clear up and change the filter screen. In addition, the filter screen adopts axial fixation, and is easier to install and convenient to operate compared with circumferential fixation.
The outer wall of the plugging section is provided with the sealing ring groove I, and the sealing ring I is assembled in the sealing ring groove I to enhance the sealing performance and avoid the occurrence of air leakage.
The outer wall of the mounting seat is provided with the sealing ring groove II, and the sealing ring II is assembled in the sealing ring groove II so as to enhance the sealing performance and avoid the occurrence of air leakage.
The filter screen comprises a filter screen body and an annular support, wherein an installation groove is formed in the inner wall of the annular support seat, and the filter screen body is connected with the installation groove in a matched mode.
And a sealing ring III is arranged on one side of the filter screen close to the connecting section I, and the outer diameter of the sealing ring III is larger than the inner diameter of the annular support. Through this design, after the installation, filter screen and sealing washer III in close contact, can filter the granule that is greater than 75 um. The sealing ring III keeps a certain compression amount, can promote the sealing performance between filter screen and linkage segment I and linkage segment II, and then guarantees that the air filters and does not have extra leakage through the filter screen is comprehensive.
The inner diameter of the inserting section is smaller than that of the connecting section III, and an annular bulge is arranged on the inner wall of one end of the inserting section, which is close to the filter screen.
The locking component comprises a retaining clip and a spring washer, wherein the retaining clip is arranged at the transition end face of the connecting section III and the inserting section, and the spring washer is arranged at the transition end face of the connecting section III and the annular protrusion.
The middle part of above-mentioned quick connector is provided with the passageway of ventilating along its axis direction, the passageway of ventilating is linked together with the inner chamber of transitional coupling body, the outer wall of quick connector's inserted section is provided with annular draw-in groove, annular draw-in groove is connected with the cooperation of stopping clamp. Through this design, the male segment of quick connector is connected with the backstop clamp cooperation, and its tip stretches into in the spring washer and obtains fixedly, can prevent effectively that quick connector hair from rocking or coming off.
The end face of the plugging section, which is close to one side of the filter screen, is provided with a circular expansion groove, and the circular expansion groove is communicated with the inner cavity of the plugging section. Through the design dilatation groove, can increase the area of contact of gas and filter screen, increase the filtration volume of gas.
The beneficial effects of the invention can be obtained by the scheme: the invention adopts a split design, comprises a quick connector and a connecting piece, wherein the connecting piece comprises a mounting seat, a transitional connecting body and a urea pump connecting body which are sequentially connected along the gas flowing direction, and the design can integrate the air inlet function and the filtering function, has a compact structure, reduces the additional mounting space for additionally mounting the filtering device, can effectively protect the metering jet pump of the precise component and prolongs the service life. In addition, the air filter screen and the sealing ring are convenient to replace, convenient to maintain and remove faults when blockage occurs, convenient to maintain and worthy of popularization.
It is seen that the present invention has outstanding substantial features and significant advances over the prior art, as well as its practical advantages.
Description of the drawings:
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a schematic cross-sectional view of A-A of FIG. 1;
FIG. 3 is a schematic cross-sectional view of a connector with a locking feature of the present invention;
FIG. 4 is a schematic top view of a filter screen according to the present invention;
FIG. 5 is a schematic cross-sectional view of B-B in FIG. 4.
Wherein 1 is a quick connector, 2 is an air inlet pipe, 3 is a connecting piece, 3-1 is a mounting seat, 3-2 is a transitional connector, 3-3 is a urea pump connector, 3-3-1 is a connecting section I, 3-3-2 is a connecting section II, 3-2-1 is a plugging section, 3-2-2 is a connecting section III, 3-2-3 is an annular bulge, 3-2-4 is a capacity expansion groove, 4 is a retaining clip, 5 is a spring washer, 6 is a sealing ring I, 7 is a sealing ring II, 8 is a sealing ring III, 9 is a sealing ring IV, 10 is a filter screen, 10-1 is an annular support, 10-2 is a filter screen body, and 11 is a sealing ring V.
The specific embodiment is as follows:
for a better understanding of the present invention, embodiments of the present invention are explained in detail below with reference to the drawings.
The specific embodiment is as follows: the invention provides an intake air filter assembly for an air-assisted SCR aftertreatment system, which is characterized in that: including quick connector 1 and connecting piece 3, connecting piece 3 includes mount pad 3-1, transitional coupling body 3-2 and urea pump connector 3-3 that connect gradually along the gas flow direction, mount pad 3-1, transitional coupling body 3-2 and urea pump connector 3-3 all set up to hollow tubular structure, be provided with filter screen 10 between transitional coupling body 3-2 and the urea pump connector 3-3, be provided with locking part in the transitional coupling body 3-2, quick connector 2's inserted section stretches into in the mount pad 3-1 and is connected with the locking part cooperation, quick connector 2's linkage segment is linked together with intake pipe 2.
In this embodiment, the urea pump connector 3-3 includes a connecting section I3-3-1 and a connecting section II 3-3-2 that are disposed front and back, the inner diameter of the connecting section II 3-3-2 is larger than the inner diameter of the connecting section I3-3-1, the transitional connector 3-2 includes a plugging section 3-2-1 and a connecting section III 3-2-2 that are disposed front and back, the plugging section 3-2-1 is in threaded connection with the inner wall of the connecting section II 3-3-2, the mounting seat 3-1 is in threaded connection with the inner wall of the connecting section III 3-2-2, and the filter screen 10 is disposed in a space formed by the inner walls of the connecting section I3-3-1, the connecting section II 3-3-2 and the plugging section 3-2-1. The outer wall of the plugging section 3-2-1 is provided with a sealing ring groove I, and a sealing ring I6 is assembled in the sealing ring groove I. The outer wall of the mounting seat 3-1 is provided with a sealing ring groove II, and a sealing ring II 7 is assembled in the sealing ring groove II.
The filter screen 10 comprises a filter screen body 10-2 and an annular support 10-1, wherein an installation groove is formed in the inner wall of the annular support 10-1, and the filter screen body 10-2 is connected with the installation groove in a matched mode. One side of the filter screen 10 close to the connecting section I is provided with a sealing ring III 8, and the outer diameter of the sealing ring III 8 is larger than the inner diameter of the annular support 10-1. Through this design, after the installation, filter screen and sealing washer III 8 in close contact, can filter the granule that is greater than 75 um. The sealing ring III 8 keeps a certain compression amount, so that the sealing performance between the filter screen and the connecting sections I3-3-1 and II 3-3-2 can be improved, and the air can be comprehensively filtered through the filter screen without extra leakage. In addition, the filter screen is axially fixed, so that the filter screen is easier to install and convenient to operate compared with the filter screen which is fixed in the circumferential direction.
The inner diameter of the inserting section 3-2-1 is smaller than that of the connecting section III 3-2-2, and an annular protrusion 3-2-3 is arranged on the inner wall of one end, close to the filter screen 10, of the inserting section 3-2-1. The locking component comprises a retaining clip 4 and a spring washer 5, wherein the retaining clip 4 is arranged at the transition end face of the connecting section III 3-2-2 and the inserting section 3-2-1, and the spring washer 5 is arranged at the transition end face of the connecting section III 3-2-2 and the bulge 3-2-3. The middle part of quick connector 1 is provided with the passageway of ventilating along its axis direction, the passageway of ventilating is linked together with the inner chamber of transition connector 3-2, the outer wall of quick connector 1's inserted section is provided with annular draw-in groove, annular draw-in groove is connected with the cooperation of stopping clamp. Through this design, the male part of quick connector 1 is connected with the cooperation of stopping clamp 4, and its tip stretches into in the spring washer 5 and obtains fixedly, can prevent effectively that quick connector hair from taking place to rock or drop.
In addition, the end face of the plugging section 3-2-1, which is close to one side of the filter screen 10, is provided with a circular expansion groove 3-2-4, and the circular expansion groove 3-2-4 is communicated with the inner cavity of the plugging section 3-2-1. The diameter of the circular expansion groove 3-2-4 is larger than the inner diameter of the annular bulge 3-2-3. By designing the expansion grooves 3-2-4, the contact area between the gas and the filter screen 10 can be increased, and the filtering amount of the gas can be increased.
The outer wall of the quick connector 1 is provided with a sealing ring groove IV, and a sealing ring IV 9 is assembled in the sealing ring groove IV to enhance the tightness of the quick connector and the mounting seat 3-1. The outer wall of the connecting section I3-3-1 is provided with a sealing ring groove V, and a sealing ring V11 is assembled in the sealing ring groove V to enhance the sealing performance of the connection with the urea pump.
The invention adopts a split design, so that the integration of the air inlet and the filtering functions is realized, the additional installation space for additionally installing the filtering device is reduced, the structure is compact, the replacement of the air filter screen and the sealing ring is also convenient, the maintenance and the elimination of faults when the blockage occurs are convenient, and the maintenance is convenient. The invention can effectively protect the metering type jet pump of the precise component, prolongs the service life and is worth popularizing.
The above description is not intended to limit the invention to the particular embodiments disclosed, but to limit the invention to the particular embodiments disclosed, as variations, modifications, additions or substitutions within the spirit and scope of the invention as disclosed in the accompanying claims.
Claims (5)
1. An intake air filter assembly for an air assisted SCR aftertreatment system, characterized by: the quick connector comprises a quick connector and a connecting piece, wherein the connecting piece comprises a mounting seat, a transitional connector and a urea pump connector which are sequentially connected along the gas flowing direction, the mounting seat, the transitional connector and the urea pump connector are all arranged into hollow cylindrical structures, a filter screen is arranged between the transitional connector and the urea pump connector, a locking part is arranged in the transitional connector, an inserting section of the quick connector stretches into the mounting seat and is connected with the locking part in a matched manner, and a connecting section of the quick connector is communicated with an air inlet pipe;
the urea pump connector comprises a connecting section I and a connecting section II which are arranged front and back, and the inner diameter of the connecting section II is larger than that of the connecting section I; the filter screen is arranged in a space formed by the inner walls of the connecting section I and the connecting section II and the plug-in section;
a sealing ring III is arranged on one side of the filter screen close to the connecting section I; the filter screen is tightly contacted with the sealing ring III, and the filter screen is axially fixed;
the transition connector comprises a plug-in section and a connecting section III which are arranged front and back, the plug-in section is in threaded connection with the inner wall of the connecting section II, and the mounting seat is in threaded connection with the inner wall of the connecting section III;
the locking component comprises a retaining clip and a spring washer, the retaining clip is arranged at the transition end face of the connecting section III and the splicing section, and the spring washer is arranged at the transition end face of the connecting section III and the bulge;
the outer wall of the insertion section of the quick connector is provided with an annular clamping groove which is connected with the retaining clip in a matched manner;
the filter screen comprises a filter screen body and an annular support, wherein an installation groove is formed in the inner wall of the annular support seat, and the filter screen body is connected with the installation groove in a matched mode;
the inner diameter of the inserting section is smaller than that of the connecting section III, and an annular bulge is arranged on the inner wall of one end, close to the filter screen, of the inserting section;
the end face of the plugging section, which is close to one side of the filter screen, is provided with a circular expansion groove, and the circular expansion groove is communicated with the inner cavity of the plugging section.
2. The intake air filter assembly for an air-assisted SCR aftertreatment system of claim 1, wherein: the outer wall of the plug-in section is provided with a sealing ring groove I, and the sealing ring groove I is internally provided with a sealing ring I.
3. The intake air filter assembly for an air-assisted SCR aftertreatment system of claim 1 or 2, wherein: the outer wall of the mounting seat is provided with a sealing ring groove II, and the sealing ring groove II is internally provided with a sealing ring II.
4. The intake air filter assembly for an air-assisted SCR aftertreatment system of claim 1, wherein: and a sealing ring III is arranged on one side of the filter screen, which is close to the connecting section I, and the outer diameter of the sealing ring III is larger than the inner diameter of the annular support.
5. The air intake filter assembly for an air-assisted SCR aftertreatment system of claim 1, wherein the middle portion of the quick connector is provided with a vent passage along an axial direction thereof, the vent passage being in communication with the interior cavity of the transition connector.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2017105282243 | 2017-07-01 | ||
| CN201710528224 | 2017-07-01 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107448267A CN107448267A (en) | 2017-12-08 |
| CN107448267B true CN107448267B (en) | 2024-03-26 |
Family
ID=60495704
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710833538.4A Active CN107448267B (en) | 2017-07-01 | 2017-09-15 | Air inlet filter assembly for air-assisted SCR aftertreatment system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107448267B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111514629B (en) * | 2020-04-17 | 2022-01-28 | 福士汽车零部件（济南）有限公司 | Novel urea filter with pressure release capacity |
| CN115434791B (en) * | 2022-11-08 | 2023-01-24 | 山东交通学院 | Marine exhaust treatment device |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102840014A (en) * | 2011-06-20 | 2012-12-26 | 杭州银轮科技有限公司 | Air-assisted injection system for diesel engine urea after-treatment SCR (Selective Catalytic Reduction) system |
| CN202762234U (en) * | 2012-08-14 | 2013-03-06 | 廖力华 | Gas circuit filter device of automobile gas braking system |
| CN202883170U (en) * | 2012-09-28 | 2013-04-17 | 蚌埠市昊业滤清器有限公司 | Valve core structure applied to air filtering and cleaning device |
| CN204511587U (en) * | 2015-03-17 | 2015-07-29 | 中国重汽集团济南动力有限公司 | A kind of air assists SCR system integrated electromagnetic valve |
| CN104819039A (en) * | 2015-04-27 | 2015-08-05 | 东莞正扬电子机械有限公司 | Urea pump and urea system containing same |
| CN205919041U (en) * | 2016-06-28 | 2017-02-01 | 重庆质卓机电设备制造有限公司 | Insert end cap soon |
| CN207363743U (en) * | 2017-07-01 | 2018-05-15 | 福士汽车零部件（济南）有限公司 | A kind of inlet air filtration component for air auxiliary SCR aftertreatment system |
-
2017
- 2017-09-15 CN CN201710833538.4A patent/CN107448267B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102840014A (en) * | 2011-06-20 | 2012-12-26 | 杭州银轮科技有限公司 | Air-assisted injection system for diesel engine urea after-treatment SCR (Selective Catalytic Reduction) system |
| CN202762234U (en) * | 2012-08-14 | 2013-03-06 | 廖力华 | Gas circuit filter device of automobile gas braking system |
| CN202883170U (en) * | 2012-09-28 | 2013-04-17 | 蚌埠市昊业滤清器有限公司 | Valve core structure applied to air filtering and cleaning device |
| CN204511587U (en) * | 2015-03-17 | 2015-07-29 | 中国重汽集团济南动力有限公司 | A kind of air assists SCR system integrated electromagnetic valve |
| CN104819039A (en) * | 2015-04-27 | 2015-08-05 | 东莞正扬电子机械有限公司 | Urea pump and urea system containing same |
| CN205919041U (en) * | 2016-06-28 | 2017-02-01 | 重庆质卓机电设备制造有限公司 | Insert end cap soon |
| CN207363743U (en) * | 2017-07-01 | 2018-05-15 | 福士汽车零部件（济南）有限公司 | A kind of inlet air filtration component for air auxiliary SCR aftertreatment system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107448267A (en) | 2017-12-08 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR100871482B1 (en) | Cleanable device for depollution of engine exhaust gases | |
| CN107448267B (en) | Air inlet filter assembly for air-assisted SCR aftertreatment system | |
| CN104514598B (en) | Emission-control equipment | |
| US6835234B2 (en) | Intake tube assembly with evaporative emission control device | |
| CN103821596A (en) | Purging and sealing-reductant delivery unit for selective catalytic reduction systems | |
| CN209855882U (en) | Diesel Particulate Filter (DPF) quick-dismounting urea mixer of diesel vehicle U-shaped postprocessor | |
| CN207363743U (en) | A kind of inlet air filtration component for air auxiliary SCR aftertreatment system | |
| US20200398199A1 (en) | Filtration assembly for use in aftertreatment systems for internal combustion engines | |
| CN112963275B (en) | Motorcycle and engine air inlet system and air filter thereof | |
| CN111980784B (en) | Vehicle tail gas mixing device and working method thereof | |
| CN211851974U (en) | Automobile tail pipe | |
| CN210858877U (en) | Urea liquid supply module | |
| CN212632030U (en) | High-efficiency filter | |
| CN220395854U (en) | Supercharging air inlet pipe assembly and automobile | |
| CN219317170U (en) | Built-in overflow device for urea pump pipe cavity | |
| CN215293096U (en) | Oil pipe joint | |
| CN219412709U (en) | Differential pressure sensor with integrated structure | |
| CN216642322U (en) | Fuel filter integrating hydrocarbon injection function | |
| CN204609993U (en) | For the external filter screen device of cooling liquid pipeline of SCR system | |
| CN216866820U (en) | Selective catalytic reduction subsystem and vehicle exhaust aftertreatment system | |
| CN212839971U (en) | Bidirectional hydraulic pipe joint | |
| CN214699684U (en) | Quick connector convenient to disassemble and assemble | |
| CN110905633A (en) | Urea liquid supply module | |
| CN211924951U (en) | Venturi desorption integrated valve | |
| CN210564824U (en) | Integrated one-way valve device for fuel steam discharge |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |