CN202001086U - Urea system with urea case internally provided with urea pump and externally provided with filter - Google Patents
Urea system with urea case internally provided with urea pump and externally provided with filter Download PDFInfo
- Publication number
- CN202001086U CN202001086U CN2010206613124U CN201020661312U CN202001086U CN 202001086 U CN202001086 U CN 202001086U CN 2010206613124 U CN2010206613124 U CN 2010206613124U CN 201020661312 U CN201020661312 U CN 201020661312U CN 202001086 U CN202001086 U CN 202001086U
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- urea
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- control signal
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- box
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/40—Engine management systems
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- Treating Waste Gases (AREA)
Abstract
The utility model relates to a urea system with a urea case internally provided with a urea pump and externally provided with a filter, consisting of a urea liquid filling mouth, the urea case, a water heating pipeline, a urea liquid temperature and level signal, an atmosphere temperature signal, an SCR inlet temperature signal, an NOx signal, a urea nozzle pressure signal, an ECU (electrical control unit) control signal A, an ECU control signal B, an ECU control signal C, a urea injector, a urea injector cooling pipeline, a urea case heating control valve, the urea filter, the urea pump, an atmosphere-introduced pipeline and a urea infusion tube, wherein the urea case is provided with the urea liquid filling mouth, a temperature and level sensor and the heating pipeline. The urea system is characterized in that the urea filter is arranged in a urea pipeline between the urea case and the urea injector, the urea pump is arranged in the urea case, the ECU control signal A controls an electromagnetic valve, the ECU control signal B controls the urea pump, and the ECU control signal C controls a urea liquid injector. With the urea system, the cost of the system can be reduced, the situation that the field of the urea system is monopolized by international suppliers is broken through, and the superiority of independent development can be given full play.
Description
Technical field
The utility model relates to the built-in urea pump of a kind of urea box-external filter cleaner formula urea system, the external urea filter cleaner of the built-in urea pump of particularly a kind of urea box formula SCR urea-spray system.
Background technique
Ripe at present urea liquid is supplied with and ejecting system all is that offshore company produces, the employing diaphragm pump structure that has, the employing gear pump structure that has, urea pump and urea filter cleaner are positioned over outside the urea box, adopt electric heating during low temperature, prevent the urea liquid sharp freezing, system complex, the electric energy of battery consumption.System complex, price are very high, all are system supplys, disagree with that breaking system is the components supplying merchant.
Summary of the invention
The purpose of this utility model is to provide the built-in urea pump of a kind of urea box-external filter cleaner formula urea system, the built-in urea pump of urea box is in the urea liquid, external urea filter cleaner, cancelled the electric heating of traditional SCR urea-spray system urea pump, saved electric energy, simplified system architecture, since the urea filter cleaner is external be convenient to maintenance simultaneously integrated pressure transducer, reduced cost, break the situation that international suppliers monopolizes this field, give full play to the advantage of independent development, be convenient to the layout of car load.The domestic present genus blank of this system, traditional urea pump and urea filter cleaner are positioned over outside the urea box, adopt electric heating during low temperature, prevent the urea liquid sharp freezing, system complex.
The technical solution of the utility model is achieved in that the built-in urea pump of a kind of urea box-external filter cleaner formula urea system, is made up of urea liquid filler, urea box, water heating pipe line, urea liquid temp and liquid level signal, atmospheric temperature signal, SCR inlet temperature signal, NOx signal, urea nozzle pressure signal, ECU control signal A, ECU control signal B, ECU control signal C, urea-spray device, urea-spray device cooling line, urea box heat control valve, urea filter cleaner, urea pump, atmospheric pipe, urea indusion tube; Arrange urea liquid filler above the urea box, temperature and liquid level sensor, heating pipe line, it is characterized in that: the urea filter cleaner is arranged in the urea pipe between urea box and the urea-spray device, be provided with urea pump in the urea box, ECU control signal A control electromagnetic valve, ECU control signal B control urea pump, ECU control signal C control urea fluid injector.
Whether described ECU control signal A controls the urea box heat control valve according to the information of the atmospheric temperature signal of importing and urea liquid temp and liquid level signal and heats.
Described ECU control signal B judges whether needs filling urea liquid of urea box according to the urea liquid temp of input and liquid level signal.Described ECU control signal C controls the working state of urea-spray device according to the urea nozzle pressure signal on the SCR inlet temperature signal of importing, urea the temperature inside the box, ambient temperature, urea box liquid level, the urea filter cleaner.
Good effect of the present utility model is: urea liquid at first arrives urea nozzle through the urea filter cleaner then through entering urea pipe behind the urea pump during its system works, the urea pump back pressure is little like this, provide system a pressure stable, improved the durability of urea pump, external urea filter cleaner is convenient to maintenance simultaneously; It reduces system cost, breaks the situation that international suppliers monopolizes this field, gives full play to the advantage of independent development.
Description of drawings
Fig. 1 is a system schematic of the present utility model.
Embodiment
Below in conjunction with accompanying drawing the utility model is further described: the built-in urea pump of a kind of urea box shown in Fig. 1-external filter cleaner formula urea system, by urea liquid filler 1, urea box 2, water heating pipe line 3, urea liquid temp and liquid level signal 4, atmospheric temperature signal 5, SCR inlet temperature signal 6, NOx signal 7, urea nozzle pressure signal 10, ECU control signal A8, ECU control signal B9, ECU control signal C11, urea-spray device 12, urea-spray device cooling line 13, urea box heat control valve 14, urea filter cleaner 18, urea pump 16, atmospheric pipe 15, urea indusion tube 17 is formed; Arrange urea liquid filler 1 above the urea box, temperature and liquid level sensor 4, heating pipe line 3, it is characterized in that: urea filter cleaner 18 is arranged in the urea pipe 17 between urea box 2 and the urea-spray device 12, be provided with urea pump 16 in the urea box 2, ECU control signal A8 control electromagnetic valve 14, ECU control signal B9 control urea pump 16, ECU control signal C11 control urea fluid injector 12.Urea liquid at first arrives urea-spray device mouth 12 through urea filter cleaner 18 then through entering urea pipe 17 behind the urea pump 16 during system works, urea pump 16 back pressures are little like this, provide system a pressure stable, improved the durability of urea pump, external urea filter cleaner is convenient to maintenance simultaneously.
Whether described ECU control signal A8 controls urea box heat control valve 14 according to the information of the atmospheric temperature signal of importing 5 and urea liquid temp and liquid level signal 4 and heats.
Described ECU control signal B9 judges whether needs filling urea liquid of urea box 2 according to the urea liquid temp of input and liquid level signal 4.
Described ECU control signal C11 controls the working state of urea-spray device 12 according to the urea nozzle pressure signal 10 on temperature, ambient temperature, urea box liquid level, the urea filter cleaner 18 in the SCR inlet temperature signal of importing 6, the urea box 2.
Described ECU judges according to the information input of NOx signal 7 whether vehicle satisfies the requirement of OBD, judges whether system works is normal, and carries out work according to the requirement of matching and calibration.
Urea liquid in the urea box 2 is to control urea pump 16 by ECU according to the urea nozzle pressure signal 10 of input to carry out work and open urea-spray device 12 simultaneously, urea liquid arrives urea-spray device 12 places by urea liquid pipeline 17 under the effect of urea pump 16 like this, and the requirement of demarcating according to engine emission sprays in the outlet pipe effect of realization reduction NOx by urea fluid injector 12.
When the environment minimum temperature is lower than-11 ° of C car load powered-downs, the back ECU control signal B9 that stops controls urea pump 16, ECU control signal C11 according to demarcating the plain fluid injector 12 of numerical control antidiuresis according to nominal data, inhale urea liquid in empty urea pipe 17 systems by urea pump 16 counter-rotating, empty and finish.
Claims (3)
1. the built-in urea pump of urea box-external filter cleaner formula urea system is made up of urea liquid filler, urea box, water heating pipe line, urea liquid temp and liquid level signal, atmospheric temperature signal, SCR inlet temperature signal, NOx signal, urea nozzle pressure signal, ECU control signal A, ECU control signal B, ECU control signal C, urea-spray device, urea-spray device cooling line, urea box heat control valve, urea filter cleaner, urea pump, atmospheric pipe, urea indusion tube; Arrange urea liquid filler above the urea box, temperature and liquid level sensor, heating pipe line, it is characterized in that: the urea filter cleaner is arranged in the urea pipe between urea box and the urea-spray device, be provided with urea pump in the urea box, ECU control signal A control electromagnetic valve, ECU control signal B control urea pump, ECU control signal C control urea fluid injector.
2. according to the built-in urea pump of the described a kind of urea box of claim 1-external filter cleaner formula urea system, it is characterized in that described ECU control signal A controls the urea box heat control valve according to the information of the atmospheric temperature signal of importing and urea liquid temp and liquid level signal and whether heats.
3. according to the built-in urea pump of the described a kind of urea box of claim 1-external filter cleaner formula urea system, it is characterized in that described ECU control signal C controls the working state of urea-spray device according to the urea nozzle pressure signal on the SCR inlet temperature signal of importing, urea the temperature inside the box, ambient temperature, urea box liquid level, the urea filter cleaner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206613124U CN202001086U (en) | 2010-12-15 | 2010-12-15 | Urea system with urea case internally provided with urea pump and externally provided with filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206613124U CN202001086U (en) | 2010-12-15 | 2010-12-15 | Urea system with urea case internally provided with urea pump and externally provided with filter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202001086U true CN202001086U (en) | 2011-10-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206613124U Expired - Fee Related CN202001086U (en) | 2010-12-15 | 2010-12-15 | Urea system with urea case internally provided with urea pump and externally provided with filter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202001086U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102022162A (en) * | 2010-12-15 | 2011-04-20 | 中国第一汽车集团公司 | Urea system with urea pump inside and filter outside urea box |
| CN108590820A (en) * | 2018-06-20 | 2018-09-28 | 中国第汽车股份有限公司 | A kind of urea injection system and its control method of crystallization-preventive |
| CN109381992A (en) * | 2018-11-12 | 2019-02-26 | 南京蔚岚环境技术研究院有限公司 | Urea pump control system, exhaust gas purification system and working method |
| CN114483262A (en) * | 2021-12-29 | 2022-05-13 | 潍柴动力股份有限公司 | Urea pump, and control method and control system for urea pump |
-
2010
- 2010-12-15 CN CN2010206613124U patent/CN202001086U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102022162A (en) * | 2010-12-15 | 2011-04-20 | 中国第一汽车集团公司 | Urea system with urea pump inside and filter outside urea box |
| CN108590820A (en) * | 2018-06-20 | 2018-09-28 | 中国第汽车股份有限公司 | A kind of urea injection system and its control method of crystallization-preventive |
| CN108590820B (en) * | 2018-06-20 | 2024-05-07 | 中国第一汽车股份有限公司 | Anti-crystallization urea injection system and control method thereof |
| CN109381992A (en) * | 2018-11-12 | 2019-02-26 | 南京蔚岚环境技术研究院有限公司 | Urea pump control system, exhaust gas purification system and working method |
| CN114483262A (en) * | 2021-12-29 | 2022-05-13 | 潍柴动力股份有限公司 | Urea pump, and control method and control system for urea pump |
| CN114483262B (en) * | 2021-12-29 | 2023-05-23 | 潍柴动力股份有限公司 | Urea pump, control method and control system of urea pump |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20111005 Termination date: 20191215 |