CN204511599U - Mixing tube and exhaust gas treatment device thereof - Google Patents
Mixing tube and exhaust gas treatment device thereof Download PDFInfo
- Publication number
- CN204511599U CN204511599U CN201520150098.9U CN201520150098U CN204511599U CN 204511599 U CN204511599 U CN 204511599U CN 201520150098 U CN201520150098 U CN 201520150098U CN 204511599 U CN204511599 U CN 204511599U
- Authority
- CN
- China
- Prior art keywords
- mixing tube
- tube
- semi
- mixer
- treatment device
- 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.)
- Withdrawn - After Issue
Links
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
-
- 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
- F01N3/24—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 constructional aspects of converting apparatus
-
- 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
- F01N3/24—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 constructional aspects of converting apparatus
- F01N3/28—Construction of catalytic reactors
-
- 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
Abstract
A kind of mixing tube, in engine exhaust treatment apparatus, described mixing tube is hollow structure, and one end of described mixing tube is formed with airflow inlet, and the other end of described mixing tube is blocked; In the shape of a spiral, the outer wall of described mixing tube is provided with the flow outlet extended vertically and is vented eddy flow to be formed the end face of described mixing tube.Setting like this, adds the stroke of air-flow in the confined space, to increase the distance of urea droplets evaporation, improves relative evaporation, improves the uniformity of mixing, reduce the risk of urea crystals.The utility model also relates to a kind of exhaust gas treatment device with this mixing tube.
Description
Technical field
The utility model relates to a kind of mixing tube and exhaust gas treatment device thereof, belongs to engine exhaust post-processing technology field.
Background technique
Research shows that the uniformity coefficient of ammonia distribution in exhaust after treatment system (such as selective catalytic reduction system operating, SCR system) pipeline has important impact to the overall performance of system and endurance quality.If ammonia skewness can cause regional area ammonia too much thus easily cause NH_3 leakage, and causes oxynitrides (NOx) transformation efficiency too low at other ammonia thin areas.The uneven distribution of long-time ammonia can cause catalyst ageing uneven, thus affects the overall performance of catalyzer.In addition, the uneven distribution of urea droplets can cause local tube wall or mixed construction temperature too low, form crystallization, outlet pipe can be blocked time serious, cause engine power performance to decline.
Therefore, the exhaust gas treatment device a kind of novel mixing tube being provided and there is this mixing tube is necessary, to solve the problems of the technologies described above.
Model utility content
The purpose of this utility model is to provide a kind of structure simple and the mixing tube mixed and have the exhaust gas treatment device of this mixing tube.
For achieving the above object, the utility model adopts following technological scheme: a kind of mixing tube, and in engine exhaust treatment apparatus, described mixing tube is hollow structure, and one end of described mixing tube is formed with airflow inlet, and the other end of described mixing tube is blocked; In the shape of a spiral, the outer wall of described mixing tube is provided with the flow outlet extended vertically and is vented eddy flow to be formed the end face of described mixing tube.
As the technological scheme that the utility model improves further, spiral described end face is that the multiple circular sliding slopes increased successively by radius of curvature form.
As the technological scheme that the utility model improves further, described mixing tube comprises the first semi-circular tube and the second semi-circular tube that cooperatively interact, described first semi-circular tube is different from the radius of described second semi-circular tube, the side of described first semi-circular tube and described second semi-circular tube links together, and the opposite side of described first semi-circular tube and described second semi-circular tube staggers to form described flow outlet diametrically mutually.
As the technological scheme that the utility model improves further, described flow outlet only has one.
As the technological scheme that the utility model improves further, described mixing tube is at least around a circle.
The utility model additionally provides a kind of exhaust gas treatment device, it comprises housing to be installed on the some dividing plates in described housing, described some dividing plates comprise the first dividing plate and second partition, described housing comprises the first cavity being positioned at described first dividing plate upstream, the second cavity between described first dividing plate and described second partition, and be positioned at the 3rd cavity in described second partition downstream, wherein said exhaust gas treatment device also comprises the mixer being positioned at described first cavity, be positioned at the mixing tube of described second cavity and be positioned at the selective catalytic reduction module in described 3rd cavity downstream, it is characterized in that: described mixer is connected with described mixing tube, described mixing tube is above-mentioned mixing tube.
As the technological scheme that the utility model improves further, described mixer is the cylindrical shape of hollow, it is circumferentially provided with some openings of some outside flange and these flange corresponding, and described flange is in tilted layout can form eddy flow when being vented and entering described mixer from described opening.
As the technological scheme that the utility model improves further, described mixer is provided with and is positioned at inner mixing chamber, described mixing chamber and described open communication; Described exhaust gas treatment device also comprises the nozzle of installation on the housing and in order to spray urea liquid vertically in described mixing chamber.
As the technological scheme that the utility model improves further, described first dividing plate does not arrange perforation in the periphery of described mixer; Described second partition is arranged with some perforation at the outer of described mixing tube, and these perforation are communicated with described 3rd cavity; The other end of described mixing tube seals up by described second partition, and the exhaust entering described mixing tube can only be left from described flow outlet.
As the technological scheme that the utility model improves further, described housing is provided with exhaust entrance in its end, and described mixer and described exhaust entrance axially stagger mutually described, and described mixer axially aligns described mutually with described mixing tube.
Compared to prior art, mixing tube of the present utility model is vented eddy flow, because this increasing the stroke of air-flow in the confined space to be formed in the shape of a spiral, to increase the distance of urea droplets evaporation, improve relative evaporation, improve the uniformity of mixing, reduce the risk of urea crystals.
Accompanying drawing explanation
Fig. 1 is the schematic perspective view of the utility model exhaust gas treatment device.
Fig. 2 is the part isometric exploded view of Fig. 1, is wherein separated by the first reactor.
Fig. 3 is the part isometric exploded view that Fig. 2 removes after rear end housing.
Fig. 4 is the stereogram of the utility model mixed construction.
Fig. 5 is the three-dimensional exploded view of Fig. 4.
Fig. 6 is the stereogram of mixer in Fig. 5.
Fig. 7 is the plan view of Fig. 6, and has gone out the sense of rotation of air-flow with arrows.
Fig. 8 is the stereogram of mixing tube in Fig. 5.
Fig. 9 is the side view of Fig. 8 along a certain angle.
The angle of Figure 10 and Fig. 9 is identical, and has gone out the sense of rotation of air-flow with arrows.
Figure 11 is the side view of mixing tube of the present utility model in another mode of execution.
The angle of Figure 12 and Figure 11 is identical, and has gone out the sense of rotation of air-flow with arrows.
Embodiment
Shown in please refer to the drawing 1 to Fig. 5, the utility model discloses a kind of exhaust gas treatment device 100, in order to process the exhaust of motor.Described exhaust gas treatment device 100 comprises the first reactor 1, mixed construction 2, second reactor 3 and the 3rd reactor 4.In the illustrated mode of execution of the utility model, described first reactor 1, described second reactor 3 are arranged in order on the flow direction be vented with described 3rd reactor 4.Further, functionally, described first reactor 1 is oxidation catalyzer (DOC), described second reactor 3 is selective oxidation catalytic module (SCR), described 3rd reactor 4 is NH_3 leakage photocatalyst module (ASC).Person of ordinary skill in the field is appreciated that above-mentioned first, second, third reactor 1,3,4 can be designed to catalyst converter or the combination of other types according to actual needs, does not repeat them here.
Shown in please refer to the drawing 3 to Fig. 5, described mixed construction 2 comprises housing 21, the some dividing plates 22 be installed in described housing 21, the mixer 23 being positioned at described housing 21 and mixing tube 24.In the illustrated mode of execution of the utility model, described housing 21 is in cylindrical shape, and it comprises the exhaust entrance 210 be communicated with described first reactor 1.Described housing 21 also comprises the end plate 211 being positioned at side.Described some dividing plates 22 comprise the first dividing plate 221 and second partition 222.Shown in please refer to the drawing 3, described housing 21 comprises at the first cavity 251 of described first dividing plate 221 upstream, the second cavity 252 between described first dividing plate 221 and described second partition 222 and the 3rd cavity 253 being positioned at described second partition 222 downstream.Described mixer 23 in described first cavity 251 and erection be fixed between described end plate 211 and described first dividing plate 221.Described mixing tube 24 in described second cavity 252 and erection be fixed between described first dividing plate 221 and described second partition 222.Described second reactor 3 is positioned at the downstream of described 3rd cavity 253.For the ease of inspecting the inside of described mixed construction 2, described housing 21 also comprises the first sight glass 261 corresponding to described first cavity 251 and the second sight glass 262 corresponding to described second cavity 252.
Shown in please refer to the drawing 3 to Fig. 5, in the illustrated mode of execution of the utility model, described mixer 23 is two with described mixing tube 24.The exhaust entrance 210 of described housing 21 departs from the axis of described housing 21, and in the mode of execution shown in Fig. 3, described exhaust entrance 210 is partial to top.Setting like this, just can flow out enough spaces in order to install nozzle 26 in the bottom of end plate 211.In a kind of mode of execution of the present utility model, described nozzle 26 is two (only schematically showing one in Fig. 3), and the quantity of described nozzle 26 is identical with the quantity of described mixer 23.
Shown in please refer to the drawing 6 and Fig. 7, in the illustrated mode of execution of the utility model, the cylindrical shape of described mixer 23 in hollow, it is circumferentially provided with some openings 232 of some outside flange 231 and these flange 231 corresponding.Described flange 231 is in tilted layout to form eddy flow (shown in the arrow ginseng Fig. 7) when being vented and entering described mixer 23 from described opening 232.Described mixer 23 is provided with and is positioned at inner mixing chamber 233, and described mixing chamber 233 is communicated with described opening 232.Operationally, nozzle 26 on end plate 211 is arranged on vertically to the urea liquid of jet atomization in described mixing chamber 233.The exhaust of eddy flow can mix more fully with urea spray droplet after entering mixing chamber 233, improves mixing uniformity, accelerates the evaporation of urea droplets, forms the distribution of uniform ammonia, thus improves the transformation efficiency of NOx, reduce the risk of urea crystals.
Shown in please refer to the drawing 3, described mixer 23 departs from the axis of described housing 21 equally.In the illustrated mode of execution of the utility model, the bottom of described first cavity 251 is partial to by described mixer 23, to form larger blending space on the top of described first cavity 251, increases mixing distance.That is, described mixer 23 staggers in the axial direction mutually with described exhaust entrance 210.
In a kind of mode of execution of the present utility model, the two ends of described mixer 23 are welded on described end plate 211 respectively with on described first dividing plate 221.Described first dividing plate 221 is provided with perforation 2211 in the position of the described mixer 23 of correspondence, and described first dividing plate 221 does not arrange perforation in the periphery of described mixer 23.Setting like this, the perforation 2211 through described first dividing plate 221 after the exhaust entered in described mixing chamber 233 mixes with urea spray droplet enters in described mixing tube 24.
Described mixing tube 24 axially mutually aligns with described mixer 23 described and be interconnected.Shown in please refer to the drawing 8 to Figure 10, in a kind of mode of execution of the present utility model, described mixing tube 24 is in hollow structure, and the end face of described mixing tube 24 in the shape of a spiral, one end of described mixing tube 24 is formed with airflow inlet 240, and the other end of described mixing tube 24 is blocked.The outer wall of described mixing tube 24 is provided with the flow outlet 241 extended vertically and is vented eddy flow (shown in the broad arrow in ginseng Figure 10) to be formed.In the illustrated mode of execution of the utility model, spiral described end face is that the multiple circular sliding slopes increased successively by radius of curvature form.Described mixing tube 24 is around some circles.Described flow outlet 241 only has one, so that form eddy flow.
Shown in please refer to the drawing 11 and Figure 12, in another kind of mode of execution of the present utility model, described mixing tube 24 comprises the first semi-circular tube 242 and the second semi-circular tube 243 cooperatively interacted.The radius R 1 of described first semi-circular tube 242 is different from the radius R 2 of described second semi-circular tube 243.Described first semi-circular tube 242 links together with the side of described second semi-circular tube 243, and described first semi-circular tube 242 staggers to form described flow outlet 241 with the opposite side of described second semi-circular tube 243 diametrically mutually.By arranging the first semi-circular tube 242 and the second semi-circular tube 243 of cooperatively interacting, the utility model mixing tube 24 relatively simple for structure, is easy to manufacture and assembling.
In a kind of mode of execution of the present utility model, the two ends of described mixing tube 24 are welded on described first dividing plate 221 respectively with on described second partition 222.Described second partition 222 is arranged with some perforation 2221 at the outer of described mixing tube 24, and these perforation 2221 are communicated with described 3rd cavity 253; The other end (being right-hand member in figure 3) of described mixing tube 24 seals up by described second partition 222, and the exhaust entering described mixing tube 24 can only be left from described flow outlet 241.
Shown in please refer to the drawing 10 and Figure 12, during work, be vented and enter described mixing tube 24 from described airflow inlet 240, then form eddy-currents from described flow outlet 241 and leave described mixing tube 24.Setting like this, adds the stroke of air-flow in the confined space, to increase the distance of urea droplets evaporation, improves relative evaporation, improves the uniformity of mixing, reduce the risk of urea crystals.
In addition, the technological scheme of above embodiment only for illustration of the utility model and described by unrestricted the utility model, understanding of this description should based on person of ordinary skill in the field, although this specification has been described in detail the utility model with reference to the above embodiments, but, those of ordinary skill in the art is to be understood that, person of ordinary skill in the field still can modify to the utility model or equivalent replacement, and all do not depart from technological scheme and the improvement thereof of spirit and scope of the present utility model, all should be encompassed in right of the present utility model.
Claims (10)
1. a mixing tube, in engine exhaust treatment apparatus, is characterized in that: described mixing tube is hollow structure, and one end of described mixing tube is formed with airflow inlet, and the other end of described mixing tube is blocked; In the shape of a spiral, the outer wall of described mixing tube is provided with the flow outlet extended vertically and is vented eddy flow to be formed the end face of described mixing tube.
2. mixing tube as claimed in claim 1, is characterized in that: spiral described end face is that the multiple circular sliding slopes increased successively by radius of curvature form.
3. mixing tube as claimed in claim 1, it is characterized in that: described mixing tube comprises the first semi-circular tube and the second semi-circular tube that cooperatively interact, described first semi-circular tube is different from the radius of described second semi-circular tube, the side of described first semi-circular tube and described second semi-circular tube links together, and the opposite side of described first semi-circular tube and described second semi-circular tube staggers to form described flow outlet diametrically mutually.
4. mixing tube as claimed in claim 1, is characterized in that: described flow outlet only has one.
5. mixing tube as claimed in claim 1, is characterized in that: described mixing tube is at least around a circle.
6. an exhaust gas treatment device, it comprises housing to be installed on the some dividing plates in described housing, described some dividing plates comprise the first dividing plate and second partition, described housing comprises the first cavity being positioned at described first dividing plate upstream, the second cavity between described first dividing plate and described second partition, and be positioned at the 3rd cavity in described second partition downstream, wherein said exhaust gas treatment device also comprises the mixer being positioned at described first cavity, be positioned at the mixing tube of described second cavity and be positioned at the selective catalytic reduction module in described 3rd cavity downstream, it is characterized in that: described mixer is connected with described mixing tube, described mixing tube is the mixing tube described in any one in claim 1 to 5.
7. exhaust gas treatment device as claimed in claim 6, it is characterized in that: described mixer is the cylindrical shape of hollow, it is circumferentially provided with some openings of some outside flange and these flange corresponding, and described flange is in tilted layout can form eddy flow when being vented and entering described mixer from described opening.
8. exhaust gas treatment device as claimed in claim 7, is characterized in that: described mixer is provided with and is positioned at inner mixing chamber, described mixing chamber and described open communication; Described exhaust gas treatment device also comprises the nozzle of installation on the housing and in order to spray urea liquid vertically in described mixing chamber.
9. exhaust gas treatment device as claimed in claim 6, is characterized in that: described first dividing plate does not arrange perforation in the periphery of described mixer; Described second partition is arranged with some perforation at the outer of described mixing tube, and these perforation are communicated with described 3rd cavity; The other end of described mixing tube seals up by described second partition, and the exhaust entering described mixing tube can only be left from described flow outlet.
10. exhaust gas treatment device as claimed in claim 6, it is characterized in that: described housing is provided with exhaust entrance in its end, described mixer and described exhaust entrance axially stagger mutually described, and described mixer axially aligns described mutually with described mixing tube.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520150098.9U CN204511599U (en) | 2015-03-17 | 2015-03-17 | Mixing tube and exhaust gas treatment device thereof |
| PCT/CN2016/076038 WO2016146015A1 (en) | 2015-03-17 | 2016-03-10 | Mixing tube and exhaust gas treatment device thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520150098.9U CN204511599U (en) | 2015-03-17 | 2015-03-17 | Mixing tube and exhaust gas treatment device thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204511599U true CN204511599U (en) | 2015-07-29 |
Family
ID=53709588
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520150098.9U Withdrawn - After Issue CN204511599U (en) | 2015-03-17 | 2015-03-17 | Mixing tube and exhaust gas treatment device thereof |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN204511599U (en) |
| WO (1) | WO2016146015A1 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104712401A (en) * | 2015-03-17 | 2015-06-17 | 天纳克（苏州）排放系统有限公司 | Mixing tube and exhaust-gas disposal device with same |
| WO2016146015A1 (en) * | 2015-03-17 | 2016-09-22 | 天纳克（苏州）排放系统有限公司 | Mixing tube and exhaust gas treatment device thereof |
| CN108457727A (en) * | 2018-04-19 | 2018-08-28 | 凯德斯环保科技（苏州）有限公司 | SCR urea mixers |
| WO2019128163A1 (en) * | 2017-12-29 | 2019-07-04 | 天纳克（苏州）排放系统有限公司 | Tail gas after-treatment mixing apparatus and package thereof |
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| CN109826697B (en) * | 2019-03-26 | 2024-01-19 | 平原滤清器有限公司 | Swirl device for diesel engine emission aftertreatment |
| CN110332034B (en) * | 2019-08-23 | 2024-03-26 | 无锡威孚力达催化净化器有限责任公司 | Vertical SCR post-treatment urea mixing device |
| CN113175373A (en) * | 2021-06-01 | 2021-07-27 | 广西玉柴机器股份有限公司 | Efficient SCR mixer |
| CN113606019A (en) * | 2021-08-19 | 2021-11-05 | 郑州精益达环保科技有限公司 | Detachable urea mixed structure for national six diesel engine |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| IT1210665B (en) * | 1981-12-07 | 1989-09-20 | Menini Alberto | PROCEDURE AND EQUIPMENT FOR THE ELIMINATION OF LEAD COMPOUNDS IN THE EXHAUST GASES OF INTERNAL COMBUSTION ENGINES. |
| JP2011106360A (en) * | 2009-11-18 | 2011-06-02 | Mitsubishi Fuso Truck & Bus Corp | Urea reduction type scr device for internal combustion engine |
| CN201714465U (en) * | 2010-07-14 | 2011-01-19 | 陈庆东 | Reduction catalyst |
| CN202100301U (en) * | 2011-06-10 | 2012-01-04 | 十堰沃尔汽车零部件有限公司 | Postprocessor of automobile tail gas |
| CN106762051B (en) * | 2015-03-17 | 2019-05-03 | 天纳克（苏州）排放系统有限公司 | Mixing tube and its exhaust gas treatment device |
| CN204511599U (en) * | 2015-03-17 | 2015-07-29 | 天纳克（苏州）排放系统有限公司 | Mixing tube and exhaust gas treatment device thereof |
-
2015
- 2015-03-17 CN CN201520150098.9U patent/CN204511599U/en not_active Withdrawn - After Issue
-
2016
- 2016-03-10 WO PCT/CN2016/076038 patent/WO2016146015A1/en active Application Filing
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104712401A (en) * | 2015-03-17 | 2015-06-17 | 天纳克（苏州）排放系统有限公司 | Mixing tube and exhaust-gas disposal device with same |
| WO2016146015A1 (en) * | 2015-03-17 | 2016-09-22 | 天纳克（苏州）排放系统有限公司 | Mixing tube and exhaust gas treatment device thereof |
| WO2019128163A1 (en) * | 2017-12-29 | 2019-07-04 | 天纳克（苏州）排放系统有限公司 | Tail gas after-treatment mixing apparatus and package thereof |
| CN108457727A (en) * | 2018-04-19 | 2018-08-28 | 凯德斯环保科技（苏州）有限公司 | SCR urea mixers |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2016146015A1 (en) | 2016-09-22 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20150729 Effective date of abandoning: 20170510 |
|
| AV01 | Patent right actively abandoned |