CN206016926U - A kind of troubleshooting tools for Diesel engine carbamide ejector pump - Google Patents
A kind of troubleshooting tools for Diesel engine carbamide ejector pump Download PDFInfo
- Publication number
- CN206016926U CN206016926U CN201620959784.5U CN201620959784U CN206016926U CN 206016926 U CN206016926 U CN 206016926U CN 201620959784 U CN201620959784 U CN 201620959784U CN 206016926 U CN206016926 U CN 206016926U
- Authority
- CN
- China
- Prior art keywords
- carbamide
- ejector pump
- diesel engine
- pump
- pressure transducer
- 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.)
- Expired - Fee Related
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Classifications
-
- 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
Landscapes
- Exhaust Gas After Treatment (AREA)
Abstract
This utility model is related to a kind of troubleshooting tools for Diesel engine carbamide ejector pump and includes carbamide injection pump controller and DC voltage display；The carbamide injection pump controller is connected with the carbamide ejector pump for being connected with pressure transducer by wire harness, controls the rotating speed of carbamide ejector pump；The DC voltage display is connected with pressure transducer by wire harness, shows the output voltage of pressure transducer, for the regulation that carbamide sprays pump controller dutycycle.This utility model provides a kind of urea injection system after-sales service instrument, has solution urea injection system maintenance operability and breakdown judge accuracy after sale.Meanwhile, instrument is simple, low cost, and suitable after-sales service is promoted the use of.
Description
Technical field
This utility model belongs to the technical field of Diagnosis of Diesel Motor, more particularly to a kind of for Diesel engine
The troubleshooting tools of urea injection system.
Background technology
In state IV, the Abgasgesetz of state V, the limit value of exhaust contaminant compared with national Ⅲ emission regulation, diesel exhaust gas
The limit value of pollutant (mainly granule and oxynitride) reduces a lot.It is difficult to realize that reduction is above-mentioned simultaneously in electromotor machine
Two kinds of exhaust contaminants, make engine emission reach state IV, the requirement of V Abgasgesetz of state.Therefore SCR system becomes and meets state
IVth, one of solution of Abgasgesetz of state V, its can effectively reduce the content of oxynitride in exhaust contaminant, make to send out
The exhaust contaminant of motivation meets state IV, the emission regulation demands of state V.
In general, ripe direct-injection urea solution spraying system is all that offshore company produces, the spraying system wherein having
Pressure is built using diaphragm pump, had then builds pressure using gear pump, and pressure controling mode is PWM, be according to pressure transducer closed loop control
System；Its carbamide metering valve is integrated with nozzle, and on gas exhaust piping, nozzle is controlled by the controller its opening time, realizes
Emitted dose is precisely controlled.
At present, IV Abgasgesetz of state is progressively implemented in domestic beginning, in large size city and developed regions, is provided with carbamide injection
State's IV diesel oil commercial car batch of system is thrown in and is used, as urea injection system has control accuracy height, structural principle multiple
Miscellaneous, electrified and intellectuality in the technical characterstic of one, after-sales service personnel exist again lack experience and without effective failure examine
Survey means, in the face of urea injection system failure, such as only with part investigation failure is changed, efficiency is low and accuracy is poor.Thus, now
It is badly in need of a kind of troubleshooting tools of the high urea injection system of simple, with low cost and accuracy of research and development, for after-sales service people
Member uses.
Content of the invention
The purpose of this utility model is that for above-mentioned the deficiencies in the prior art, there is provided a kind of for Diesel engine urine
The troubleshooting tools of plain ejector pump.
The purpose of this utility model is achieved through the following technical solutions, as follows in conjunction with illustrating：
A kind of troubleshooting tools for Diesel engine carbamide ejector pump, including carbamide injection pump controller 1 and directly
Stream voltage display 2；
The carbamide injection pump controller 1 is connected with the carbamide ejector pump 5 for being connected with pressure transducer by wire harness 4, is controlled
The rotating speed of carbamide ejector pump 5；
The DC voltage display 2 is connected with pressure transducer by wire harness 4, shows the output electricity of pressure transducer
Pressure, for the regulation that carbamide sprays 1 dutycycle of pump controller.
The carbamide pump controller 1 produces 5V TTL waveforms.
The duty cycle adjustment scope 0%～100%.
Normally opened hand push button 3 is additionally provided with, which is connected by wire harness 4 with urea nozzle 6, controls the switching of urea nozzle 6
Electricity.
Compared with prior art, the beneficial effects of the utility model are：Provide a kind of urea injection system after-sales service
Instrument, has solution urea injection system maintenance operability and breakdown judge accuracy after sale.Meanwhile, instrument is simple, low cost,
Suitable after-sales service is promoted the use of.
Description of the drawings
Fig. 1 is the troubleshooting tools schematic diagram for Diesel engine urea injection system of the present utility model.
In figure, 1. 2. 3. normally opened hand push button of DC voltage display, 4. wire harness of carbamide pump controller, 5. urea pump
6. urea nozzle.
Specific embodiment
Below in conjunction with the accompanying drawings this utility model is made to describe in detail：
A kind of troubleshooting tools for Diesel engine carbamide ejector pump, spray pump controller 1, direct current including carbamide
Voltage display 2 and normally opened manual control button 3；
The carbamide injection pump controller 1 is connected with the carbamide ejector pump 5 for being connected with pressure transducer by wire harness 4, is controlled
The rotating speed of carbamide ejector pump 5；
The DC voltage display 2 is connected with the pressure transducer of carbamide ejector pump 5 by wire harness 4, shows that pressure is passed
The output voltage of sensor, for the closed loop that carbamide sprays 1 duty cycle adjustment of pump controller, wherein carbamide pump controller 1 produces 5V
TTL waveforms, duty cycle adjustment scope 0%～100%；
The normally opened hand push button 3 is connected by wire harness 4 with urea nozzle 6, is controlled the switching electricity of urea nozzle 6, is pressed
Urea nozzle 6 is opened, starts to spray carbamide, unclamps urea nozzle 6 and closes, stops spraying carbamide.
As shown in figure 1, the troubleshooting tools for Diesel engine carbamide ejector pump are connected with carbamide ejector pump 5,
According to the pressure transducer display target value of carbamide ejector pump 5, the dutycycle of carbamide pump controller 1 is adjusted so that DC voltage
The display numerical value of display 2 reaches desired value, and the dutycycle according to now carbamide pump controller 1 judges the work shape of urea pump 5
State；Then press and unclamp normally opened hand push button 3,6 working condition of perusal urea nozzle.
Claims (4)
1. a kind of troubleshooting tools for Diesel engine carbamide ejector pump, it is characterised in that：Including carbamide ejector pump control
Device (1) processed and DC voltage display (2)；
Carbamide injection pump controller (1) is connected with the carbamide ejector pump (5) for being connected with pressure transducer by wire harness (4), is controlled
The rotating speed of Urina Hominis (processed) element ejector pump (5)；
Described DC voltage display (2) are connected with pressure transducer by wire harness (4), show the output electricity of pressure transducer
Pressure, for the regulation that carbamide sprays pump controller (1) dutycycle.
2. a kind of troubleshooting tools for Diesel engine carbamide ejector pump according to claim 1, its feature exist
In：Described carbamide pump controller (1) produces 5V TTL waveforms.
3. a kind of troubleshooting tools for Diesel engine carbamide ejector pump according to claim 1, its feature exist
In：The duty cycle adjustment scope 0%～100%.
4. a kind of troubleshooting tools for Diesel engine carbamide ejector pump according to claim 1, its feature exist
In：Also include normally opened hand push button (3), which is connected by wire harness (4) with urea nozzle (6), control urea nozzle (6) logical,
Power-off.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620959784.5U CN206016926U (en) | 2016-08-26 | 2016-08-26 | A kind of troubleshooting tools for Diesel engine carbamide ejector pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620959784.5U CN206016926U (en) | 2016-08-26 | 2016-08-26 | A kind of troubleshooting tools for Diesel engine carbamide ejector pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206016926U true CN206016926U (en) | 2017-03-15 |
Family
ID=58252224
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620959784.5U Expired - Fee Related CN206016926U (en) | 2016-08-26 | 2016-08-26 | A kind of troubleshooting tools for Diesel engine carbamide ejector pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206016926U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021142969A1 (en) * | 2020-01-19 | 2021-07-22 | 无锡威孚力达催化净化器有限责任公司 | Method, apparatus and system for monitoring urea nozzle |
-
2016
- 2016-08-26 CN CN201620959784.5U patent/CN206016926U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021142969A1 (en) * | 2020-01-19 | 2021-07-22 | 无锡威孚力达催化净化器有限责任公司 | Method, apparatus and system for monitoring urea nozzle |
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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 |
Granted publication date: 20170315 Termination date: 20200826 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |