CN108361095A - A kind of automatic control type urea liquid spraying system - Google Patents
A kind of automatic control type urea liquid spraying system Download PDFInfo
- Publication number
- CN108361095A CN108361095A CN201810249979.4A CN201810249979A CN108361095A CN 108361095 A CN108361095 A CN 108361095A CN 201810249979 A CN201810249979 A CN 201810249979A CN 108361095 A CN108361095 A CN 108361095A
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- Prior art keywords
- injector
- solenoid valve
- air
- urea
- valve
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- 239000004202 carbamide Substances 0.000 title claims abstract description 88
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 title claims abstract description 87
- 239000007788 liquid Substances 0.000 title claims abstract description 79
- 238000005507 spraying Methods 0.000 title claims abstract description 26
- 230000005540 biological transmission Effects 0.000 claims abstract description 13
- 238000002347 injection Methods 0.000 claims description 10
- 239000007924 injection Substances 0.000 claims description 10
- 239000007921 spray Substances 0.000 claims description 10
- 230000003111 delayed effect Effects 0.000 claims description 6
- 238000000034 method Methods 0.000 claims description 6
- 238000007373 indentation Methods 0.000 claims description 3
- 239000003595 mist Substances 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 4
- 238000009434 installation Methods 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 1
- 206010022000 influenza Diseases 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 210000002700 urine Anatomy 0.000 description 1
- 239000002699 waste material Substances 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]
-
- 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]
- F01N3/208—Control of selective catalytic reduction [SCR], e.g. dosing of reducing agent
-
- 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
- F01N2610/1453—Sprayers or atomisers; Arrangement thereof in the exhaust 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
- F01N2610/00—Adding substances to exhaust gases
- F01N2610/14—Arrangements for the supply of substances, e.g. conduits
- F01N2610/1453—Sprayers or atomisers; Arrangement thereof in the exhaust apparatus
- F01N2610/146—Control thereof, e.g. control of injectors or injection valves
-
- 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)
- Nozzles (AREA)
Abstract
The present invention relates to a kind of automatic control type urea liquid spraying systems.It is characterized by comprising air source, urea tank and using the injector of negative pressure drainage, injector is made of middle part runner and external shell, air flue is formed between middle part runner and external shell, runner exit is flushed with air passage outlet；The urea tank connects the runner of injector by liquid delivery tube, and air source connects the air flue of injector by air shooter, and negative pressure is formed in the jet port of injector.The present invention does not need specific SCR urea pumps to control emitted dose, only adjusts emitted dose with the duty ratio for adjusting proportion magnetic valve in injector, i.e., has the function of pump and nozzle simultaneously；Devising 2 kinds of different structures simultaneously realizes the mode of operation of two different liquid transmission pipeline emptying urea liquids, ensure when being stopped, there is no liquid residual in liquid transmission pipeline, the environment of pipeline when not worked by improving, it avoids that pipeline is caused to bear, extends pipeline service life.
Description
Technical field
The present invention relates to a kind of automatic control type urea liquid spraying systems.
Background technology
Although gas helps formula, urea metering pump plays a crucial role in SCR aftertreatment system, existing gas
Helping formula urea metering pump, there is also following drawbacks：Complicated, manufacturing cost is excessively high, and sealing structure requires high, the pump housing
It is detached with nozzle so that waste installation space, is unfavorable for integrating, it has not been convenient to which installation and repair, atomizing effect be not notable.Therefore,
Optimize structure, reduces manufacturing cost, is easy to installation and maintenance, promoting atomizing effect into the project for being badly in need of solution.
Invention content
For problems of the prior art, the purpose of the present invention is to provide a kind of injections of automatic control type urea liquid to be
The technical solution of system.
A kind of automatic control type urea liquid spraying system, it is characterised in that including air source, urea tank and utilize negative pressure
The injector of drainage, injector are made of middle part runner and external shell, and air flue is formed between middle part runner and external shell, in
The runner exit of portion's runner is flushed with the air passage outlet of air flue；The urea tank connects the middle part of injector by liquid delivery tube
Runner, air source connect the air flue of injector by air shooter, and negative pressure is formed in the jet port of injector.
A kind of automatic control type urea liquid spraying system, it is characterised in that one is drawn on the liquid delivery tube
Pipe, branch pipe are communicated by a normally closed solenoid valve with air；It is arranged on air shooter between the air source and injector
Gas constant pressure solenoid valve；One proportion magnetic valve is set on the liquid delivery tube between the injector and urea tank.
A kind of automatic control type urea liquid spraying system, it is characterised in that the normally closed solenoid valve is closed type two
Two-way electromagnetic valve, the normal-closed end of closed type two-position two-way solenoid valve connect the branch pipe, closed type two-position two-way solenoid valve it is normal
Beginning communicates with air.
A kind of automatic control type urea liquid spraying system, it is characterised in that between the urea tank and injector
One normally open solenoid valve is set on liquid delivery tube；One air constant pressure is set on the air shooter between the air source and injector
Solenoid valve；One proportion magnetic valve is set on the liquid delivery tube between the injector and normally open solenoid valve.
A kind of automatic control type urea liquid spraying system, it is characterised in that the normally open solenoid valve is open type two
Three-way magnetic valve, the normally open end connection urea tank and liquid delivery tube of open type two-position three way magnetic valve, open type two-position three way
The normal-closed end of solenoid valve is communicated with air.
A kind of automatic control type urea liquid spraying system, it is characterised in that the air constant pressure solenoid valve is closed type
Bi-bit bi-pass structure.
A kind of automatic control type urea liquid spraying system, it is characterised in that the proportion magnetic valve is normally closed structure.
The control method of the automatic control type urea liquid spraying system, it is characterised in that including：
Spray regime：Air constant pressure solenoid valves are opened, and it is constant to make to enter compressed air flow velocity in injector, in injector
Jet port formed negative pressure, while normally closed solenoid valve power-off close, proportion magnetic valve be powered, make shape between urea tank and injector
At pressure difference, the urea liquid in urea tank is pressed into injector, and simultaneously mist is mixed with compressed air in the jet port of injector
Change injection, urea liquid emitted dose is controlled by adjusting the duty ratio of proportion magnetic valve；
Emptying state：After the completion of injection, air constant pressure solenoid valve remains powered on, proportion magnetic valve standard-sized sheet, and normally closed solenoid valve is powered
It opens, the outlet of urea tank is communicated by normally closed solenoid valve with air, keeps the inlet and outlet pressure of urea tank the same, to connection
Urea liquid emptying in the liquid transmission pipeline of normally closed solenoid valve and proportion magnetic valve, emptying time are set as 30 seconds -60
Second；Air constant pressure solenoid valve is first closed at the end of emptying, is delayed 1 second -2 seconds, then successively closes proportion magnetic valve, normally closed electromagnetism
Valve.
The control method of the automatic control type urea liquid spraying system, it is characterised in that including：
Spray regime：Air constant pressure solenoid valves are opened, and it is constant to make to enter compressed air flow velocity in injector, in injector
Jet port form negative pressure, while normally open solenoid valve power-off maintains a normally open, and proportion magnetic valve is powered, make urea tank and injector it
Between form pressure difference, in the urea liquid indentation injector in urea tank, and mixed with compressed air in the jet port of injector
And atomized spray, urea liquid emitted dose are controlled by adjusting the duty ratio of proportion magnetic valve；
Emptying state：After the completion of injection, air constant pressure solenoid valve remains powered on, proportion magnetic valve standard-sized sheet, and normally open solenoid valve is powered,
The port closing of urea tank in this way, connect the liquid transmission pipeline of normally closed solenoid valve and proportion magnetic valve by normally open solenoid valve with
Air communicates, to which the urea liquid in the liquid transmission pipeline of connection normally open solenoid valve and proportion magnetic valve is emptied, emptying
Time is set as 30 seconds -60 seconds, and air constant pressure solenoid valve is first closed at the end of emptying, is delayed 1 second -2 seconds, then successively closes ratio
Example solenoid valve, normally open solenoid valve.
The present invention provides a kind of simple and reasonable injectors and spraying system, need not be specific in the prior art
SCR urea pumps control emitted dose, only adjust emitted dose with the duty ratio of proportion magnetic valve in adjusting injector, i.e., have simultaneously
There is the function of pump and nozzle；Devising 2 kinds of different structures simultaneously realizes two different liquid transmission pipeline emptying urea
The mode of operation of solution, ensures when being stopped, and does not have liquid residual in liquid transmission pipeline, is managed when not worked by improving
The environment on road avoids causing to bear to pipeline, extends pipeline service life.
Description of the drawings
Fig. 1 is the first attachment structure schematic diagram；
Fig. 2 is the first evacuation structures schematic diagram；
Fig. 3 is second of attachment structure schematic diagram；
Fig. 4 is second of evacuation structures schematic diagram；
In figure：1- urea tanks, 2- normally closed solenoid valves, 3- proportion magnetic valves, 4- injectors, 5- air constant pressure solenoid valves, 6- air sources,
7- runners, 8- air flues, 9- normally open solenoid valves.
Specific implementation mode
The invention is further explained in the following combination with the attached drawings of the specification：
A kind of automatic control type urea liquid spraying system, air source 6, urea tank 1 and using negative pressure drainage injector 4, injector by
Middle part runner 7 and external shell are constituted, and form air flue 8 between middle part runner and external shell, the runner exit of middle part runner with
The air passage outlet of air flue flushes, and urea tank 1 connects the middle part runner of injector by liquid delivery tube, and air source is conveyed by gas
Pipe connects the air flue of injector, and negative pressure is formed in the jet port of injector.
Embodiment 1
A branch pipe is drawn on liquid delivery tube, branch pipe is communicated by a normally closed solenoid valve 2 with air；Between air source 6 and injector 4
Air shooter on an air constant pressure solenoid valve 5 is set；One ratio of setting on liquid delivery tube between injector and urea tank
Example solenoid valve 3.Normally closed solenoid valve is closed type two-position two-way solenoid valve, and the normal-closed end of closed type two-position two-way solenoid valve connects institute
Branch pipe is stated, the normally open end of closed type two-position two-way solenoid valve is communicated with air.Above-mentioned air constant pressure solenoid valve is closed type two
Two-way structure, proportion magnetic valve are normally closed structure.
The control method of the corresponding automatic control type urea liquid spraying system of the embodiment is as follows,
Spray regime：Air constant pressure solenoid valves are opened, and it is constant to make to enter compressed air flow velocity in injector, in injector
Jet port formed negative pressure, while normally closed solenoid valve power-off close, proportion magnetic valve be powered, make shape between urea tank and injector
At pressure difference, the urea liquid in urea tank is pressed into injector, and simultaneously mist is mixed with compressed air in the jet port of injector
Change injection, urea liquid emitted dose is controlled by adjusting the duty ratio of proportion magnetic valve；
Emptying state：After the completion of injection, air constant pressure solenoid valve remains powered on, proportion magnetic valve standard-sized sheet, and normally closed solenoid valve is powered
It opens, the outlet of urea tank is communicated by normally closed solenoid valve with air, keeps the inlet and outlet pressure of urea tank the same, to connection
Urea liquid emptying in the liquid transmission pipeline of normally closed solenoid valve and proportion magnetic valve, emptying time are set as 30 seconds -60
Second；Air constant pressure solenoid valve is first closed at the end of emptying, is delayed 1 second -2 seconds, then successively closes proportion magnetic valve, normally closed electromagnetism
Valve.
Embodiment 2
One normally open solenoid valve 9 is set on the liquid delivery tube between urea tank and injector；Gas between air source 6 and injector 4
One air constant pressure solenoid valve 5 is set in body delivery pipe；One ratio of setting on liquid delivery tube between injector and normally open solenoid valve
Example solenoid valve 3.Normally open solenoid valve is open type two-position three way magnetic valve, the normally open end connection urine of open type two-position three way magnetic valve
The normal-closed end of plain tank and liquid delivery tube, open type two-position three way magnetic valve is communicated with air.Above-mentioned air constant pressure solenoid valve is
Closed type bi-bit bi-pass structure, proportion magnetic valve are normally closed structure.
The control method of the corresponding automatic control type urea liquid spraying system of the embodiment is as follows,
Spray regime：Air constant pressure solenoid valves are opened, and it is constant to make to enter compressed air flow velocity in injector, in injector
Jet port form negative pressure, while normally open solenoid valve power-off maintains a normally open, and proportion magnetic valve is powered, make urea tank and injector it
Between form pressure difference, in the urea liquid indentation injector in urea tank, and mixed with compressed air in the jet port of injector
And atomized spray, urea liquid emitted dose are controlled by adjusting the duty ratio of proportion magnetic valve；
Emptying state：After the completion of injection, air constant pressure solenoid valve remains powered on, proportion magnetic valve standard-sized sheet, and normally open solenoid valve is powered,
The port closing of urea tank in this way, connect the liquid transmission pipeline of normally closed solenoid valve and proportion magnetic valve by normally open solenoid valve with
Air communicates, to which the urea liquid in the liquid transmission pipeline of connection normally open solenoid valve and proportion magnetic valve is emptied, emptying
Time is set as 30 seconds -60 seconds, and air constant pressure solenoid valve is first closed at the end of emptying, is delayed 1 second -2 seconds, then successively closes ratio
Example solenoid valve, normally open solenoid valve.
Claims (9)
1. a kind of automatic control type urea liquid spraying system, it is characterised in that including air source, urea tank and utilize the spray of negative pressure drainage
Emitter, injector are made of middle part runner and external shell, and air flue is formed between middle part runner and external shell, middle part runner
Runner exit is flushed with the air passage outlet of air flue；The urea tank connects the middle part runner of injector, gas by liquid delivery tube
Source connects the air flue of injector by air shooter, and negative pressure is formed in the jet port of injector.
2. a kind of automatic control type urea liquid spraying system according to claim 1, it is characterised in that conveyed in the liquid
A branch pipe is drawn on pipe, branch pipe is communicated by a normally closed solenoid valve with air；Gas conveying between the air source and injector
One air constant pressure solenoid valve is set on pipe；One ratio electromagnetism is set on the liquid delivery tube between the injector and urea tank
Valve.
3. a kind of automatic control type urea liquid spraying system according to claim 2, it is characterised in that the normally closed solenoid valve
Normal-closed end for closed type two-position two-way solenoid valve, closed type two-position two-way solenoid valve connects the branch pipe, closed type two two
The normally open end of three-way electromagnetic valve is communicated with air.
4. a kind of automatic control type urea liquid spraying system according to claim 1, it is characterised in that the urea tank with
One normally open solenoid valve is set on the liquid delivery tube between injector；It is set on air shooter between the air source and injector
Set an air constant pressure solenoid valve；One proportion magnetic valve is set on the liquid delivery tube between the injector and normally open solenoid valve.
5. a kind of automatic control type urea liquid spraying system according to claim 4, it is characterised in that the normally open solenoid valve
Normally open end for open type two-position three way magnetic valve, open type two-position three way magnetic valve is connected to urea tank and liquid delivery tube, often
The normal-closed end of open form two-position three way magnetic valve is communicated with air.
6. a kind of automatic control type urea liquid spraying system according to claim 2 or 4, it is characterised in that the air constant pressure
Solenoid valve is closed type bi-bit bi-pass structure.
7. a kind of automatic control type urea liquid spraying system according to claim 2 or 4, it is characterised in that the ratio electromagnetism
Valve is normally closed structure.
8. a kind of control method of automatic control type urea liquid spraying system as claimed in claim 3, it is characterised in that including：
Spray regime：Air constant pressure solenoid valves are opened, and it is constant to make to enter compressed air flow velocity in injector, in injector
Jet port formed negative pressure, while normally closed solenoid valve power-off close, proportion magnetic valve be powered, make shape between urea tank and injector
At pressure difference, the urea liquid in urea tank is pressed into injector, and simultaneously mist is mixed with compressed air in the jet port of injector
Change injection, urea liquid emitted dose is controlled by adjusting the duty ratio of proportion magnetic valve；
Emptying state：After the completion of injection, air constant pressure solenoid valve remains powered on, proportion magnetic valve standard-sized sheet, and normally closed solenoid valve is powered
It opens, the outlet of urea tank is communicated by normally closed solenoid valve with air, keeps the inlet and outlet pressure of urea tank the same, to connection
Urea liquid emptying in the liquid transmission pipeline of normally closed solenoid valve and proportion magnetic valve, emptying time are set as 30 seconds -60
Second；Air constant pressure solenoid valve is first closed at the end of emptying, is delayed 1 second -2 seconds, then successively closes proportion magnetic valve, normally closed electromagnetism
Valve.
9. a kind of control method of automatic control type urea liquid spraying system as claimed in claim 5, it is characterised in that including：
Spray regime：Air constant pressure solenoid valves are opened, and it is constant to make to enter compressed air flow velocity in injector, in injector
Jet port form negative pressure, while normally open solenoid valve power-off maintains a normally open, and proportion magnetic valve is powered, make urea tank and injector it
Between form pressure difference, in the urea liquid indentation injector in urea tank, and mixed with compressed air in the jet port of injector
And atomized spray, urea liquid emitted dose are controlled by adjusting the duty ratio of proportion magnetic valve；
Emptying state：After the completion of injection, air constant pressure solenoid valve remains powered on, proportion magnetic valve standard-sized sheet, and normally open solenoid valve is powered,
The port closing of urea tank in this way, connect the liquid transmission pipeline of normally closed solenoid valve and proportion magnetic valve by normally open solenoid valve with
Air communicates, to which the urea liquid in the liquid transmission pipeline of connection normally open solenoid valve and proportion magnetic valve is emptied, emptying
Time is set as 30 seconds -60 seconds, and air constant pressure solenoid valve is first closed at the end of emptying, is delayed 1 second -2 seconds, then successively closes ratio
Example solenoid valve, normally open solenoid valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810249979.4A CN108361095A (en) | 2018-03-26 | 2018-03-26 | A kind of automatic control type urea liquid spraying system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810249979.4A CN108361095A (en) | 2018-03-26 | 2018-03-26 | A kind of automatic control type urea liquid spraying system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108361095A true CN108361095A (en) | 2018-08-03 |
Family
ID=63000799
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810249979.4A Pending CN108361095A (en) | 2018-03-26 | 2018-03-26 | A kind of automatic control type urea liquid spraying system |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102009025226A1 (en) * | 2009-06-09 | 2010-12-16 | Elringklinger Ag | System for injecting urea solution on exhaust line of internal combustion engine, has reservoir for urea, and has nozzle that is injected in exhaust line |
| US20120260629A1 (en) * | 2011-04-15 | 2012-10-18 | Ford Global Technologies, Llc | System and Method for Liquid Reductant Injection |
| CN103174497A (en) * | 2012-08-15 | 2013-06-26 | 苏州派格丽减排系统有限公司 | Reductant spraying control device in selective catalytic reduction (SCR) system |
| CN104612793A (en) * | 2015-01-20 | 2015-05-13 | 西南交通大学 | Air pressure type urea metering spraying system easy to control |
| CN208089384U (en) * | 2018-03-26 | 2018-11-13 | 浙江爱力浦科技股份有限公司 | A kind of automatic control type urea liquid spraying system |
-
2018
- 2018-03-26 CN CN201810249979.4A patent/CN108361095A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102009025226A1 (en) * | 2009-06-09 | 2010-12-16 | Elringklinger Ag | System for injecting urea solution on exhaust line of internal combustion engine, has reservoir for urea, and has nozzle that is injected in exhaust line |
| US20120260629A1 (en) * | 2011-04-15 | 2012-10-18 | Ford Global Technologies, Llc | System and Method for Liquid Reductant Injection |
| CN103174497A (en) * | 2012-08-15 | 2013-06-26 | 苏州派格丽减排系统有限公司 | Reductant spraying control device in selective catalytic reduction (SCR) system |
| CN104612793A (en) * | 2015-01-20 | 2015-05-13 | 西南交通大学 | Air pressure type urea metering spraying system easy to control |
| CN208089384U (en) * | 2018-03-26 | 2018-11-13 | 浙江爱力浦科技股份有限公司 | A kind of automatic control type urea liquid spraying system |
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Application publication date: 20180803 |