CN204646374U - Common rail assembly and urea injection system thereof - Google Patents
Common rail assembly and urea injection system thereof Download PDFInfo
- Publication number
- CN204646374U CN204646374U CN201520136665.5U CN201520136665U CN204646374U CN 204646374 U CN204646374 U CN 204646374U CN 201520136665 U CN201520136665 U CN 201520136665U CN 204646374 U CN204646374 U CN 204646374U
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- China
- Prior art keywords
- urea
- common rail
- face
- rail assembly
- inlet passage
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/12—Improving ICE efficiencies
-
- 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
A kind of common rail assembly, in urea injection system, it comprises interconnective at least the first common rail and the second common rail, and wherein said first common rail comprises the first housing, be arranged on pressure-detecting device on described first housing and pressure regulator.At least one first refluxing opening that described first housing comprises the first urea inlet passage, the first urea outlet passage, at least one first delivery port be connected with described first urea inlet passage and is connected with described first urea outlet passage.Described pressure-detecting device is connected with described first urea inlet passage.Described first urea inlet passage can be communicated with described first urea outlet passage or block by described pressure regulator.The utility model further discloses a kind of urea injection system.The utility model is by being together in series to major general first common rail and the second common rail, and can require to select the common rail of suitable number to combine according to different application, expansion capability is stronger.
Description
Technical field
The utility model relates to a kind of common rail assembly and urea injection system thereof, belongs to motor exhaust post-processing technology field.
Background technique
The application of common rail system in the fuel injection system of motor is long-standing.This fuel-injected common rail is because need to bear very high pressure, and its structure is very restricted.Because cylindrical structure can bear higher pressure compared to other structures, therefore existing fuel-injected common rail almost all adopts cylindrical structure.
Get over strict along with various countries' exhaust emission standard, higher requirement is proposed to the urea injection system as vent gas treatment.The pressure how controlled in urea injection system becomes the ubiquitous technical problem of industry.
In addition, particularly for the vent gas treatment of high power engine, the pipeline of its urea injection system is often long, and the pressure loss is larger, therefore need to provide a kind of can the common rail of stable system pressure, the application of this common rail and there is the urea injection system of this common rail.
In addition, when common rail is applied in big-block engine after-treatment system, in order to meet different designing requirements, often need to design the common rail matched with it, this solution substantially increases cost.
Therefore, be necessary that a kind of New Common Rail assembly based on some common rails being carried out combining of design is to solve the problem.
Model utility content
The common rail assembly that the purpose of this utility model is to provide a kind of expansion capability stronger and urea injection system thereof.
For achieving the above object, the utility model adopts following technological scheme: a kind of common rail assembly, for in urea injection system, described common rail assembly comprises interconnective at least the first common rail and the second common rail, and wherein said first common rail comprises the first housing, be arranged on pressure-detecting device on described first housing and pressure regulator; Described first housing comprises with the first urea inlet passage entered for urea liquid, with the first urea outlet passage flowed out for urea liquid, at least one first delivery port be connected with described first urea inlet passage and at least one first refluxing opening of being connected with described first urea outlet passage; Described pressure-detecting device is connected with described first urea inlet passage; Described pressure regulator is connected between described first urea inlet passage and described first urea outlet passage, and described first urea inlet passage can be communicated with described first urea outlet passage or block by described pressure regulator; Described second common rail comprises the second housing, and described second housing comprises the second urea inlet passage be communicated with described first urea inlet passage, the second urea outlet passage, at least one second delivery port be connected with described second urea inlet passage and at least one second refluxing opening be connected with described second urea outlet passage of being communicated with described first urea outlet passage.
As the technological scheme that the utility model improves further, described first housing is roughly in cuboid, it comprises the first end face, the second end face, the 3rd end face and the 4th end face, wherein said first end face and described second end face are oppositely arranged, and described 3rd end face and described 4th end face are oppositely arranged; Described first urea inlet passage and described first urea outlet passage run through described first end face and/or the second end face, and described first delivery port runs through described 3rd end face, and described first refluxing opening runs through described 4th end face.
As the technological scheme that the utility model improves further, described first delivery port is several, described first common rail be provided be connected with each the first delivery port first carry joint; Described first refluxing opening is several, and described first common rail is provided with the first backflow fittings be connected with each the first refluxing opening; The quantity and described first of wherein said first backflow fittings carries the quantity of joint identical.
As the technological scheme that the utility model improves further, described first conveying joint is distributed between described first end face and described second end face, described first backflow fittings is also distributed between described first end face and described second end face, described first conveying joint is contrary with described first backflow fittings direction, and each first delivery port aligns with the first corresponding refluxing opening and arranges.
As the technological scheme that the utility model improves further, at least one first conveying joint is provided with urea quality sensor.
As the technological scheme that the utility model improves further, described first urea inlet passage and described first urea outlet passage are parallel to each other, described first conveying joint is perpendicular to described first urea inlet passage, and described backflow fittings is perpendicular to described first urea outlet passage.
As the technological scheme that the utility model improves further, described common rail assembly comprises the first connecting tube connecting described first urea inlet passage and described second urea inlet passage, and connects the second connecting tube of described first urea outlet passage and described second urea outlet passage.
As the technological scheme that the utility model improves further, described first housing also comprises the front all vertical with described first, second, third, fourth end face and the back side with described vis-a-vis, and four corners in wherein said front all have the mounting hole running through the described back side.
As the technological scheme that the utility model improves further, described first housing also comprises the front all vertical with described first, second, third, fourth end face and the back side with described vis-a-vis, and the wherein said back side is provided with the mounting groove installing described pressure regulator.
As the technological scheme that the utility model improves further, described pressure regulator is pressure controlled valve, and when described pressure transducer detects that pressure is greater than setting value, described pressure controlled valve is opened.
The utility model also relates to a kind of urea injection system, in order to process the tail gas of motor, described urea injection system comprises urea tank, the fluid delivery system in order to outwards to be extracted out by the urea liquid in described urea tank, the common rail assembly be connected with described fluid delivery system, the nozzle be connected with described common rail assembly and the controller in order to control described urea injection system, described fluid delivery system comprises the pump in order to extracted urea solution, described common rail assembly is above-mentioned common rail assembly, and wherein said nozzle is communicated with described first delivery port.
Compared to prior art, first common rail of the present utility model is provided with the first urea inlet passage entered for urea liquid and with the first urea outlet passage flowed out for urea liquid, described first urea inlet passage can be communicated with or block with described first urea outlet passage, with regulating system pressure by described pressure regulator; In addition, by being together in series to major general first common rail and the second common rail, can require to select the common rail of suitable number to combine according to different application, expansion capability is stronger.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of the utility model for the urea injection system of engines tail gas disposal.
Fig. 2 is the stereogram of common rail assembly in Fig. 1.
Fig. 3 is the plan view of Fig. 2.
Fig. 4 is the worm's eye view of Fig. 2.
Fig. 5 is the sectional view of the utility model common rail assembly in a certain position.
Fig. 6 is the partial exploded view of Fig. 2.
Fig. 7 is the three-dimensional exploded view of the first common rail in Fig. 2.
Fig. 8 is the sectional view of the first common rail in Fig. 2.
Embodiment
Shown in please refer to the drawing 1, the utility model discloses a kind of urea injection system 100 that can be applied to the exhaust aftertreatment of big-block engine, described urea injection system 100 comprise urea tank 1, the filter assemblies 3 be connected with described urea tank 1, in order to carry the fluid delivery system 4 of described urea liquid, the common rail assembly 5 be connected with described fluid delivery system 4, the some nozzles 6 be connected with described common rail assembly 5 and the controller 2 in order to control described urea injection system 100.
In the illustrated mode of execution of the utility model, described motor 200 is that power is generally more than the high power engine of 500 kilowatts.Described fluid delivery system 4 is provided with the pump 41(such as gear pump etc. in order to pumping urea liquid).In the illustrated mode of execution of the utility model, described controller 2 is arranged on described fluid delivery system 4, integrated to realize.Described nozzle 6 is in order to the urea liquid to jet atomization in engine exhaust pipe 201.Urea liquid through atomization is broken down into ammonia in described engine exhaust pipe 201, and described ammonia can react with the nitrogen oxide in tail gas, thus reduces the discharge of nitrogen oxide.In view of the principle of this tail gas disposal technique is known person of ordinary skill in the field, the utility model does not repeat them here.
Shown in please refer to the drawing 2 to Fig. 8, in the illustrated mode of execution of the utility model, described common rail assembly 5 comprises the first common rail 51, second common rail 52, the 3rd common rail 53, the 4th common rail 54 and the 5th common rail 55 that are cascaded.Described second, third, the 4th, the 5th common rail 52,53,54, the structure of 55 is identical, the structure of described first common rail 51 and described second common rail 52 very similar, so that shared device/mould, saves manufacture cost.Below only for the first common rail 51, be described in detail.
Described first common rail 51 is in order to regulate the pressure in urea injection system 100.Particularly, described first common rail 51 comprises the first housing 511, is arranged on pressure-detecting device 512 on described first housing 511 and pressure regulator 513.Described first housing 511 is roughly in cuboid, and it comprises the first end face 5111, second end face 5112, the 3rd end face 5113, the 4th end face 5114, front 5115 and the back side 5116(relative with described front 5115 and joins shown in Fig. 4).Wherein, described first end face 5111 is oppositely arranged with described second end face 5112; Described 3rd end face 5113 and the 4th end face 5114 are oppositely arranged; Described front 5115 is all vertical with described first end face 5111, second end face 5112, the 3rd end face 5113 and the 4th end face 5114.The mounting hole 5117(that four corners in described front 5115 all have described first common rail 51 installation is fixed to pre-position joins shown in Fig. 8).The described back side 5116 is provided with the mounting groove 5118 installing described pressure regulator 513.
Described first housing 511 also comprises with the first urea inlet passage 5141 entered for urea liquid, with the first urea outlet passage 5151 flowed out for urea liquid, some first delivery ports 5142 be connected with described first urea inlet passage 5141 and some first refluxing openings 5152 of being connected with described first urea outlet passage 5151.Described first urea inlet passage 5141 runs through described first end face 5111 and/or the second end face 5112 with described first urea outlet passage 5151.In the illustrated mode of execution of the utility model, described first urea inlet passage 5141 all runs through described first end face 5111 with described first urea outlet passage 5151.Described first urea inlet passage 5141 is parallel to each other with described first urea outlet passage 5151, thus is convenient to processing.In the illustrated mode of execution of the utility model, what described 3rd end face 5113 was provided with that three the first delivery ports 5142 and three are connected with described first delivery port 5142 first carries joint 5143.Each first conveying joint 5143 is all perpendicular to described first urea inlet passage 5141.Being distributed between described first end face 5111 and the second end face 5112 of three described first conveying joint 5143 intervals.In the illustrated mode of execution of the utility model, on that the first conveying joint 5143 of described 3rd end face 5113, urea quality sensor 516 is installed.Certainly, in other embodiments, described urea quality sensor 516 also can be installed on any one first conveying joint 5143; Or also by three first conveying joints 5143, urea quality sensor 516 can be all installed.
In the illustrated mode of execution of the utility model, described first refluxing opening 5152 is also three, and described 4th end face 5114 arranges three the first refluxing openings 5152 and three the first backflow fittings 5153 be connected with described first refluxing opening 5152.Each first backflow fittings 5153 is all perpendicular to described first urea outlet passage 5151.Three described first backflow fittings 5153 being also distributed between described first end face 5111 and the second end face 5112 of interval.Described first delivery port 5142 runs through described 3rd end face 5113, and described first refluxing opening 5152 runs through described 4th end face 5114.The quantity and described first of described first backflow fittings 5153 carries the quantity of joint 5143 identical, but installation direction is contrary.Each first delivery port 5142 aligns with the first corresponding refluxing opening 5152 and arranges.
In the illustrated mode of execution of the utility model, described pressure-detecting device 512 is pressure transducer, and it to be installed on described second end face 5112 and to be communicated with described first urea inlet passage 5141.In the illustrated mode of execution of the utility model, described pressure regulator 512 is pressure controlled valve, and it is installed in described mounting groove 5118.Setting like this, functionally, described pressure controlled valve is connected between described first urea inlet passage 5141 and described first urea outlet passage 5151, and described first urea inlet passage 5141 can be communicated with described first urea outlet passage 5151 or block by described pressure controlled valve.Such as, when the pressure that described pressure transducer detects in described first urea inlet passage 5141 is greater than setting value, described pressure controlled valve is opened by described controller 2, thus realizes decompression function.
First common rail 51 of the present utility model is very different from existing fuel-injected common rail.First, through a large amount of data analyses, the utility model is applied in the pressure that bears required for the common rail in urea injection system 100 much smaller than fuel-injected common rail.Based on this analysis, rectangular first housing 511 that the utility model discloses possesses good processability.What is more important, this is that the scheme be integrated in described first common rail 51 provides feasibility by the first urea outlet passage 5151.Certainly, in the illustrated mode of execution of the utility model, the diameter of described first urea inlet passage 5141 is greater than the diameter of described first urea outlet passage 5151.The reason of this design is, by scientific analysis, finds that described first urea inlet passage 5141 needs the pressure born also to be different from described first urea outlet passage 5151.
Described second common rail 52 is very similar with the structure of described first common rail 51, is briefly described below.
Described second common rail 52 comprises the second housing 521, and described second housing 521 comprises the second urea inlet passage 5241 be communicated with described first urea inlet passage 5141, the second urea outlet passage 5251, some second delivery ports 5242 be connected with described second urea inlet passage 5241 and some second refluxing openings 5252 be connected with described second urea outlet passage 5251 that are communicated with described first urea outlet passage 5151.
In addition, described common rail assembly 5 also comprises the first connecting tube 517 connecting described first urea inlet passage 5141 and described second urea inlet passage 5241, and connects the second connecting tube 518 of described first urea outlet passage 5241 and described second urea outlet passage 5251.Described first connecting tube 517 is all hollow tubulars with described second connecting tube 518, to realize the flowing of urea liquid in the first common rail 51 and the second common rail.
Be appreciated that the utility model comprises some first connecting tubes 517 and some second connecting tubes 518, described first common rail 51, second common rail 52, the 3rd common rail 53, the 4th common rail 54 and the 5th common rail 55 to be all together in series.Setting like this, can require to select the common rail of suitable number to combine according to different application, expansion capability is stronger.
In addition, the pressure controlled valve be arranged in described first common rail 51 has three effects: the first, assist the pressure set up in urea pipe; The second, the voltage stabilizing after pressure foundation controls; Three, before described urea injection system 100 stops, by rotating backward of described pump 41, by the pipeline of urea injection system described in the air suction in described urea tank 1 with the urea liquid in emptying described pipeline.
Particularly, when system just starts build-up pressure, in pipeline, a large amount of air may be there is, and the compressibility of air easily causes building pressing unsuccessfully.Pressure controlled valve designed by the utility model solves problems cleverly.When system has just started to build pressure, described controller 2 controls to open described pressure controlled valve (such as making described pressure controlled valve be in the aperture of a certain fixing aperture or change), be communicated with described first urea inlet passage 5141 with described first urea outlet passage 5151 to provide the air that a passage comes in discharge conduit, be convenient to the fast run-up pressure of pipeline.
When system is built after pressure completes, in order near the pressure that the urea pressure ensureing in described first common rail 51 maintains setting and substantially constant, the aperture of pressure controlled valve described in described controller 2 meeting quick adjustment, thus the object regulating pressure is reached by the capacity of reflux controlling urea liquid.
Before described urea injection system 100 stops, described pressure controlled valve is opened by described controller 2, and described pump 41 rotates backward, by the pipeline of urea injection system described in the air suction in described urea tank 1 with the urea liquid in emptying described pipeline.It should be noted that: before described urea injection system 100 stops, referring to that described controller 2 has received the signal that system is about to shutdown, now described nozzle 6 has stopped spraying, but described pump 41 is still rotation (such as reversing).Urea liquid in emptying described pipeline, its object is to prevent because of icing of urea solution, expansion and damage system.
In the illustrated mode of execution of the utility model, the described nozzle 6 corresponding to each common rail is set to three.Each nozzle 6 is provided with the delivery line 61 be communicated with corresponding delivery port and the return line 62 be communicated with corresponding refluxing opening.Setting like this, on the one hand, spraying urea liquid can be incident upon in described outlet pipe 201 and carry out chemical reaction by described nozzle 6; On the other hand, the urea liquid of backflow can be utilized again to cool described nozzle 6.First the urea liquid of backflow is all pooled in corresponding common rail by return line 62, and then is back in described urea tank 1 by reflux line 300 is unified.In prior art, usually adopt the scheme be directly incorporated into by described return line 62 in described urea tank 1, this scheme can make each nozzle 6 need an independently return line 62, and cost is higher.In addition, in conjunction with application of the present utility model, particularly in the exhaust treatment system of high power engine, the length of pipe between described urea tank 1 and described nozzle 6 is often comparatively large, and existing this backflow design can not meet the demands.
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, such as " front and back are run through " refers to and did not run through before installing other parts, again such as to " front ", " afterwards ", " left side ", " right side ", " on ", the description of D score isotropy, 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 (11)
1. a common rail assembly, for in urea injection system, it is characterized in that: common rail assembly comprises interconnective at least the first common rail and the second common rail, wherein said first common rail comprises the first housing, be arranged on pressure-detecting device on described first housing and pressure regulator; Described first housing comprises with the first urea inlet passage entered for urea liquid, with the first urea outlet passage flowed out for urea liquid, at least one first delivery port be connected with described first urea inlet passage and at least one first refluxing opening of being connected with described first urea outlet passage; Described pressure-detecting device is connected with described first urea inlet passage; Described pressure regulator is connected between described first urea inlet passage and described first urea outlet passage, and described first urea inlet passage can be communicated with described first urea outlet passage or block by described pressure regulator; Described second common rail comprises the second housing, and described second housing comprises the second urea inlet passage be communicated with described first urea inlet passage, the second urea outlet passage, at least one second delivery port be connected with described second urea inlet passage and at least one second refluxing opening be connected with described second urea outlet passage of being communicated with described first urea outlet passage.
2. common rail assembly as claimed in claim 1, it is characterized in that: described first housing is roughly in cuboid, it comprises the first end face, the second end face, the 3rd end face and the 4th end face, wherein said first end face and described second end face are oppositely arranged, and described 3rd end face and described 4th end face are oppositely arranged; Described first urea inlet passage and described first urea outlet passage run through described first end face and/or the second end face, and described first delivery port runs through described 3rd end face, and described first refluxing opening runs through described 4th end face.
3. common rail assembly as claimed in claim 2, is characterized in that: described first delivery port is several, described first common rail be provided be connected with each the first delivery port first carry joint; Described first refluxing opening is several, and described first common rail is provided with the first backflow fittings be connected with each the first refluxing opening; The quantity and described first of wherein said first backflow fittings carries the quantity of joint identical.
4. common rail assembly as claimed in claim 3, it is characterized in that: described first conveying joint is distributed between described first end face and described second end face, described first backflow fittings is also distributed between described first end face and described second end face, described first conveying joint is contrary with described first backflow fittings direction, and each first delivery port aligns with the first corresponding refluxing opening and arranges.
5. common rail assembly as claimed in claim 3, is characterized in that: at least one first conveying joint is provided with urea quality sensor.
6. common rail assembly as claimed in claim 2, it is characterized in that: described first urea inlet passage and described first urea outlet passage are parallel to each other, described first conveying joint is perpendicular to described first urea inlet passage, and described backflow fittings is perpendicular to described first urea outlet passage.
7. common rail assembly as claimed in claim 1, it is characterized in that: described common rail assembly comprises the first connecting tube connecting described first urea inlet passage and described second urea inlet passage, and connects the second connecting tube of described first urea outlet passage and described second urea outlet passage.
8. common rail assembly as claimed in claim 2, it is characterized in that: described first housing also comprises the front all vertical with described first, second, third, fourth end face and the back side with described vis-a-vis, four corners in wherein said front all have the mounting hole running through the described back side.
9. common rail assembly as claimed in claim 2, it is characterized in that: described first housing also comprises the front all vertical with described first, second, third, fourth end face and the back side with described vis-a-vis, and the wherein said back side is provided with the mounting groove installing described pressure regulator.
10. common rail assembly as claimed in claim 9, it is characterized in that: described pressure regulator is pressure controlled valve, when described pressure transducer detects that pressure is greater than setting value, described pressure controlled valve is opened.
11. 1 kinds of urea injection system, in order to process the tail gas of motor, described urea injection system comprises urea tank, in order to the fluid delivery system that the urea liquid in described urea tank is outwards extracted out, the common rail assembly be connected with described fluid delivery system, the nozzle be connected with described common rail assembly and the controller in order to control described urea injection system, described fluid delivery system comprises the pump in order to extracted urea solution, described common rail assembly is the common rail assembly described in any one in claim 1 to 10, wherein said nozzle is communicated with described first delivery port.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520136665.5U CN204646374U (en) | 2015-03-11 | 2015-03-11 | Common rail assembly and urea injection system thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520136665.5U CN204646374U (en) | 2015-03-11 | 2015-03-11 | Common rail assembly and urea injection system thereof |
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| Publication Number | Publication Date |
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| CN204646374U true CN204646374U (en) | 2015-09-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201520136665.5U Withdrawn - After Issue CN204646374U (en) | 2015-03-11 | 2015-03-11 | Common rail assembly and urea injection system thereof |
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| CN (1) | CN204646374U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104763497A (en) * | 2015-03-11 | 2015-07-08 | 天纳克（苏州）排放系统有限公司 | Common-rail component, urea injection system and application of common-rail component |
| WO2016078539A1 (en) * | 2014-11-21 | 2016-05-26 | 天纳克（苏州）排放系统有限公司 | Exhaust postprocessing component |
| WO2016078540A1 (en) * | 2014-11-21 | 2016-05-26 | 天纳克（苏州）排放系统有限公司 | Common rail, application of the common rail, carbamide spraying system, and control method therefor |
| US10202883B2 (en) | 2014-11-21 | 2019-02-12 | Tenneco (Suzhou) Emission System Co., Ltd. | Common rail assembly, urea injection system and application thereof |
-
2015
- 2015-03-11 CN CN201520136665.5U patent/CN204646374U/en not_active Withdrawn - After Issue
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016078539A1 (en) * | 2014-11-21 | 2016-05-26 | 天纳克（苏州）排放系统有限公司 | Exhaust postprocessing component |
| WO2016078540A1 (en) * | 2014-11-21 | 2016-05-26 | 天纳克（苏州）排放系统有限公司 | Common rail, application of the common rail, carbamide spraying system, and control method therefor |
| US10202883B2 (en) | 2014-11-21 | 2019-02-12 | Tenneco (Suzhou) Emission System Co., Ltd. | Common rail assembly, urea injection system and application thereof |
| US10253675B2 (en) | 2014-11-21 | 2019-04-09 | Tenneco (Suzhou) Emission System Co., Ltd. | Exhaust postprocessing component |
| US10634034B2 (en) | 2014-11-21 | 2020-04-28 | Tenneco (Suzhou) Emission System Co., Ltd. | Common rail, application of the common rail, carbamide spraying system, and control method therefor |
| CN104763497A (en) * | 2015-03-11 | 2015-07-08 | 天纳克（苏州）排放系统有限公司 | Common-rail component, urea injection system and application of common-rail component |
| CN104763497B (en) * | 2015-03-11 | 2017-03-22 | 天纳克（苏州）排放系统有限公司 | Common-rail component, urea injection system and application of common-rail component |
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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: 20150916 Effective date of abandoning: 20170322 |
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| C25 | Abandonment of patent right or utility model to avoid double patenting |