CN106640283A - Fuel oil supply and injection device for DPF system regeneration - Google Patents
Fuel oil supply and injection device for DPF system regeneration Download PDFInfo
- Publication number
- CN106640283A CN106640283A CN201710090499.3A CN201710090499A CN106640283A CN 106640283 A CN106640283 A CN 106640283A CN 201710090499 A CN201710090499 A CN 201710090499A CN 106640283 A CN106640283 A CN 106640283A
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- CN
- China
- Prior art keywords
- passage
- valve
- fuel oil
- dpf
- oil supply
- 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.)
- Pending
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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
- F01N3/02—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust
- F01N3/021—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters
- F01N3/023—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters using means for regenerating the filters, e.g. by burning trapped particles
- F01N3/025—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters using means for regenerating the filters, e.g. by burning trapped particles using fuel burner or by adding fuel to exhaust
- F01N3/0253—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters using means for regenerating the filters, e.g. by burning trapped particles using fuel burner or by adding fuel to exhaust adding fuel to exhaust gases
-
- 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
- F01N9/00—Electrical control of exhaust gas treating apparatus
- F01N9/002—Electrical control of exhaust gas treating apparatus of filter regeneration, e.g. detection of clogging
-
- 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
- F01N2610/03—Adding substances to exhaust gases the substance being hydrocarbons, e.g. engine fuel
-
- 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
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Processes For Solid Components From Exhaust (AREA)
Abstract
The invention provides a fuel oil supply and injection device for DPF system regeneration. The fuel oil supply and injection device for DPF system regeneration comprises a shell, wherein a liquid inlet connector, a liquid outlet connector and a gas inlet connector are arranged on the shell; a channel I, a pump, a channel II, a valve body assembly, a channel III, a metering valve, a channel IV, a mixing module and a channel V are sequentially arranged between the liquid inlet connector and the liquid outlet connector in the shell; a pressure sensor is further arranged on the channel III; a nozzle is connected outside the liquid outlet connector; the gas inlet connector is sequentially connected with an air electromagnetic valve and a check valve I; and the metering valve, the pressure sensor, the pump and the air electromagnetic valve are electrically connected with a control unit. The fuel oil supply and injection device for DPF system regeneration, which is provided by the invention, belongs to the technical field of DPF carrier regeneration, and is capable of accurately measuring a fuel oil supply amount and greatly increasing initiative DPF regeneration efficiency; and meanwhile, the fuel oil supply and injection device for DPF system regeneration is capable of avoiding the solidification phenomenon of an internal fluid due to a low-temperature environment, lowering the maintenance cost, guaranteeing no fuel oil residual, and prolonging the service life of the product.
Description
Technical field
The invention belongs to DPF carrier regeneration technical fields, more particularly, to a kind of DPF system regeneration fuel delivery
Injection apparatus.
Background technology
The exhaust pollutant of Diesel engine mainly includes oxynitride and particulate matter.With diesel engine emissions method
The upgrading of rule, further process is needed to the particulate matter in motor exhaust.DPF(Diesel Particulate
Filter) diesel particulate filter, refers in diesel engine truck exhaust system, by filtering to reduce aerofluxuss in particulate matter (PM)
Device.DPF is arranged in Diesel Engine Exhaust Pipe, and when aerofluxuss pass through, PM is by filter element adsorption filtration.
With the increase of working time, filter element inside PM increases, and causes exhaust back pressure to raise, and will affect the power of diesel engine
The economy of property.The process for removing microgranule in particle trapper is the regeneration of particle trapper, and DPF initiative regenerations are referred to by outer
Plus gas flow temperature is brought up to the initiation temperature of microgranule by energy, and then the particle burning of trapping is set to reach the mesh for regenerating filtering bodies
's.At present feedway still suffer from that measuring accuracy is unstable, nozzle is easily blocked, low temperature environment cannot be adapted to the problems such as.
The content of the invention
In view of this, the invention is directed to a kind of DPF system regeneration fuel delivery injection apparatus, to solve to pass
The problems such as measuring accuracy that system DPF initiative regenerations feedway is present is unstable, nozzle is easily blocked and cannot adapt to low temperature environment.
To reach above-mentioned purpose, what the technical scheme of the invention was realized in：
Fuel delivery injection apparatus, including housing are used in DPF system regeneration, and the housing is provided with liquid inlet joint, go out liquid connects
Head and inlet suction port, the enclosure interior the liquid inlet joint and it is described go out liquid joint between be sequentially arranged passage I, pump,
Passage II, valve component, passage III, metering valve, passage IV, mixing module and passage V, on the passage III pressure is additionally provided with
Sensor, it is described go out liquid connector exterior connection nozzle, the inlet suction port is sequentially connected with air solenoid valve, check valve I, the list
To being provided with air duct, the metering valve, pressure transducer, pump and air solenoid valve and control between valve I and the mixing module
Unit electrical connection processed.
Further, the valve component includes throttling body and check valve II, and the check valve II is arranged on the passage
Between II and the passage III, the throttling body inlet is arranged on the passage II, and the throttling body liquid outlet is by logical
Road VI is connected with the liquid joint that returns for arranging on the housing.
Liquid inlet joint is connected with fuel tank outlet line, return liquid joint be connected with tank drainback pipeline, inlet suction port with it is vehicle-mounted
Compressed air reservoir connects, and nozzle is arranged on exhaustor, and in exhaustor fuel oil is sprayed.
Further, it is to tackle the solidification phenomenon that low temperature environment causes the too low appearance of feedway internal flow temperature, institute
State enclosure interior and be additionally provided with heating and heat conducting body component, electric heating sheets are fixed with the heating and heat conducting body component, the heating is led
Hot body component is provided with hot zone, can be to valve component, mixing module, passage I, passage II, passage III, passage IV, passage V, logical
Road VI is heated, and the electric heating sheets are electrically connected with control unit.
Relative to prior art, the DPF system regeneration fuel delivery injection apparatus described in the invention have following
Advantage：
(1) the DPF system regeneration fuel delivery injection apparatus described in the invention can accurately calculate fuel delivery
Amount, is fully broken up with air and is mixed, and increases substantially DPF initiative regeneration efficiency.
(2) heating module inside the DPF system regeneration fuel delivery injection apparatus described in the invention can be kept away
Exempt from the internal flow solidification phenomenon caused due to low temperature environment, for injection apparatus continuous heating is provided, make injection apparatus in low temperature
In the case of being capable of steady running.
(3) will throttle body in the valve component of the DPF system regeneration fuel delivery injection apparatus described in the invention
It is provided separately with check valve, ensure that metering valve front end operating pressure is stable, reduces maintenance cost.
(4) the fuel delivery injection apparatus of the DPF system regeneration described in the invention increase purging in control flow
Step, after metering valve quits work, is persistently purged to liquid line thereafter, it is ensured that without fuel oil residual, realize product
Reliability improves service life simultaneously.
Description of the drawings
The accompanying drawing for constituting the part of the invention is used for providing further understanding the invention, present invention wound
The schematic description and description made does not constitute the improper restriction to the invention for explaining the invention.
In accompanying drawing：
Fig. 1 is the DPF system regeneration fuel delivery injection apparatus principle schematic described in the invention embodiment；
Fig. 2 is that the DPF system regeneration fuel delivery injection apparatus overall structure described in the invention embodiment is illustrated
Figure.
Description of reference numerals：
1- liquid inlet joints；2- returns liquid joint；3- inlet suction ports；4- goes out liquid joint；5- heating and heat conducting body components；6- passages I；
7- passages II；8- pumps；9- valve components；10- throttling bodies；11- check valves II；12- passages VI；13- passages III；14- pressure is passed
Sensor；15- metering valves；16- passages IV；17- mixing modules；18- passages V；19- air ducts；20- air solenoid valves；21-
Check valve I；22- nozzles.
Specific embodiment
It should be noted that in the case where not conflicting, the feature in embodiment and embodiment in the invention can
To be mutually combined.
In the description of the invention, it is to be understood that term " " center ", " longitudinal direction ", " horizontal ", " on ", D score,
The orientation or position relationship of the instruction such as "front", "rear", "left", "right", " vertical ", " level ", " top ", " bottom ", " interior ", " outward " is
Based on orientation shown in the drawings or position relationship, it is for only for ease of description the invention and simplifies description, rather than indicates
Or the device or element of hint indication with specific orientation, with specific azimuth configuration and operation, therefore must not be understood that
It is the restriction to the invention.Additionally, term " first ", " second " etc. are only used for describing purpose, and it is not intended that indicating
Or hint relative importance or the implicit quantity for indicating indicated technical characteristic.Thus, " first ", " second " etc. are defined
Feature can express or implicitly include one or more this feature.In the description of the invention, unless separately
It is described, " multiple " are meant that two or more.
In the description of the invention, it should be noted that unless otherwise clearly defined and limited, term " peace
Dress ", " connected ", " connection " should be interpreted broadly, for example, it may be fixedly connected, or be detachably connected, or integratedly
Connection；Can be mechanically connected, or electrically connect；Can be joined directly together, it is also possible to be indirectly connected to by intermediary,
It can be the connection of two element internals.For the ordinary skill in the art, can be by concrete condition understanding
State concrete meaning of the term in the invention.
Below with reference to the accompanying drawings and in conjunction with the embodiments describing the invention in detail.
Fuel delivery injection apparatus, including housing are used in DPF system regeneration, and the housing is provided with liquid inlet joint 1, go out liquid connects
4 and inlet suction port 3, the enclosure interior the liquid inlet joint 1 and it is described go out liquid joint 4 between be sequentially arranged passage I
6th, pump 8, passage II 7, valve component 9, passage III 13, metering valve 15, passage IV 16, mixing module 17 and passage V 18, described
Be additionally provided with pressure transducer 14 on passage III 13, it is described go out the external connection nozzle 22 of liquid joint 4, the inlet suction port 3 sequentially connects
Air solenoid valve 20, check valve I 21 are connect, air duct 19 is provided between the check valve I 21 and the mixing module 17, it is described
Metering valve 15, pressure transducer 14, pump 8 and air solenoid valve 20 are electrically connected with control unit.
The valve component 9 includes throttling body 10 and check valve II 11, and the check valve II 11 is arranged on the passage II 7
And the passage III 13 between, the throttling inlet of body 10 is arranged on the passage II 7, and throttling body 10 liquid outlet leads to
Cross passage VI 12 and be connected with the liquid joint 2 that returns for arranging on the housing.
The use of the throttling body 10 in valve component, it is to avoid the pressure in fluid passage caused by pump 8 frequent start-stop
Fluctuation, the operating pressure for making metering valve 15 front end is stablized, even if under the transient condition that big ups and downs occur is measured in target, still
Stablizing for pressure is can guarantee that, the control metering of more accurate fuel flow is realized, it is ensured that stablizing for dpf regeneration process is controllable, keeps away
Exempt from the heats unusual fluctuations that fuel supply volume is inaccurately caused occur, and then regenerate failure even DPF processor ablations etc.
The appearance of situation of serious failure.
The rotating speed of the different motors of pump 8 is adjusted by control unit, it is possible to achieve different channel pressures, relative to fixation
The feedway of pressure, metering valve 15 can adapt to bigger measures range, increase the range of feedway.For different are led to
Road pressure, by the calculating inside control unit, adjusts the dutycycle aperture of metering valve 15, you can realize accurately metering spray
Penetrate, adapt to the electromotor of different displacements for the requirement of feedway.
Liquid inlet joint 1 is connected with fuel tank outlet line, returns liquid joint 2 and is connected with tank drainback pipeline, inlet suction port and car
Compressed air reservoir connection is carried, nozzle is arranged on exhaustor, and in exhaustor fuel oil is sprayed.
To tackle the solidification phenomenon that low temperature environment causes the too low appearance of feedway internal flow temperature, the enclosure interior
Heating and heat conducting body component 5 is additionally provided with, electric heating sheets, the heating and heat conducting body component 5 are fixed with the heating and heat conducting body component 5
Hot zone is provided with, can be to valve component 9, mixing module 17, passage I 6, passage II 7, passage III 13, passage IV 16, passage V
18th, passage VI 12 is heated, and the electric heating sheets 23 are electrically connected with control unit.
Stop the operating mode of fuel delivery in regeneration ending, existing apparatus occur the residual of fuel, in fluid passage residual voltage
In the presence of, exhaustor or the exit of nozzle 22 can be instilled, result in blockage, coking, the not even failure mode such as regular regeneration.
In the control flow of this device, add in purge step, the i.e. 30s after metering valve 15 quits work, control unit control
Air solenoid valve processed 20 is persistently opened, and the liquid line after metering valve 15 is thoroughly purged, it is ensured that remained without fuel oil,
In the case of additionally not increasing cost, the reliability of product and the lifting of service life are realized.
Workflow：
According to the control logic of control unit, the operating of this device is divided into：Pre- note emptying, build pressure, metering and purging, standby
In the stage.When needing the condition for carrying out dpf regeneration to meet, the pump 8 that motor drives at full speed runs, and fuel from fuel tank is pumped into into this
Device, while the pressure of pressure transducer 14 is detected, it is complete when pressure is more than 0.2MPa, it is believed that empty air in device
Into the pre- note stage；Closed loop control is carried out according to the numerical value of pressure transducer 14, the liquid line pressure before metering valve 15 is kept
Certain numerical value, such as 0.5MPa, building the pressure stage completes；According to the operating mode of electromotor operation, control unit drives dutycycle meter
Amount valve 15 and opening air solenoid valve 20, the fuel oil of accurate measurement passes through after mixing module 17 and compressed air are sufficiently mixed
Nozzle 22 injects exhaustor；When the condition that need not be regenerated meets, control unit stops the driving of the motor of pump 8, fluid passage
Interior pressure slowly drops to atmospheric pressure by throttling body 10, while air solenoid valve 20 still keeps it turned on, when carrying out one section
Between purging, this time is set as 30-180s according to the different distance and relative position of dosing pump and nozzle 22, and purging is completed
Afterwards, into standby phase, one action circulation is completed.
The preferred embodiment of the invention is the foregoing is only, it is all at this not to limit the invention
Within the spirit and principle of innovation and creation, any modification, equivalent substitution and improvements made etc. should be included in the invention
Protection domain within.
Claims (3)
1.DPF system regenerations fuel delivery injection apparatus, including housing, it is characterised in that：The housing is provided with feed liquor and connects
Head (1), go out liquid joint (4) and inlet suction port (3), the enclosure interior the liquid inlet joint (1) and it is described go out liquid joint
(4) passage I (6), pump (8), passage II (7), valve component (9), passage III (13), metering valve (15), logical is sequentially arranged between
Road IV (16), mixing module (17) and passage V (18), are additionally provided with pressure transducer (14) on the passage III (13), it is described go out
Liquid joint (4) external connection nozzle (22), the inlet suction port (3) is sequentially connected with air solenoid valve (20), check valve I (21),
Air duct (19), the metering valve (15), pressure sensing are provided between the check valve I (21) and the mixing module (17)
Device (14), pump (8) and air solenoid valve (20) are electrically connected with control unit.
2. fuel delivery injection apparatus are used in DPF system regeneration according to claim 1, it is characterised in that：The valve body group
Part (9) includes throttling body (10) and check valve II (11), and the check valve II (11) is arranged on the passage II (7) and described leads to
Between road III (13), throttling body (10) inlet is arranged on the passage II (7), and throttling body (10) liquid outlet leads to
Cross passage VI (12) and be connected with the liquid joint (2) that returns for arranging on the housing.
3. fuel delivery injection apparatus are used in DPF system regeneration according to claim 1, it is characterised in that：In the housing
Portion is additionally provided with heating and heat conducting body component (5), and on the heating and heat conducting body component (5) electric heating sheets, the heating and heat conducting are fixed with
Body component (5) is provided with hot zone, can be to valve component (9), mixing module (17), passage I (6), passage II (7), passage III
(13), passage IV (16), passage V (18), passage VI (12) are heated, and the electric heating sheets (23) are electrically connected with control unit
Connect.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710090499.3A CN106640283A (en) | 2017-02-20 | 2017-02-20 | Fuel oil supply and injection device for DPF system regeneration |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710090499.3A CN106640283A (en) | 2017-02-20 | 2017-02-20 | Fuel oil supply and injection device for DPF system regeneration |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106640283A true CN106640283A (en) | 2017-05-10 |
Family
ID=58845179
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710090499.3A Pending CN106640283A (en) | 2017-02-20 | 2017-02-20 | Fuel oil supply and injection device for DPF system regeneration |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106640283A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110513178A (en) * | 2019-08-13 | 2019-11-29 | 东风商用车有限公司 | A kind of fuel injection control systems and method for DPF initiative regeneration |
| CN113606014A (en) * | 2021-08-31 | 2021-11-05 | 东风商用车有限公司 | DPF regeneration fuel injection system, control method and vehicle |
| CN114165313A (en) * | 2021-12-08 | 2022-03-11 | 平原滤清器有限公司 | Hydrocarbon injection system and control method thereof |
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| US20030145580A1 (en) * | 1999-12-22 | 2003-08-07 | Wolfgang Ripper | Device and method for generating a mixture of reducing agent and air |
| CN101090765A (en) * | 2004-12-30 | 2007-12-19 | 格伦德福斯管理联合股份公司 | Dosing pump assembly |
| CN101457682A (en) * | 2008-11-13 | 2009-06-17 | 阿尔博耐尔有限公司 | Parts carrier for measurement system |
| CN102251832A (en) * | 2011-06-10 | 2011-11-23 | 苏州派格力减排***有限公司 | Liquid heating type metering jet pump in SCR (selective catalytic reduction) system |
| CN102748100A (en) * | 2011-04-19 | 2012-10-24 | 苏州派格力减排***有限公司 | Urea measuring jet pump in SCR (Selective Catalytic Reduction) system |
| CN206468410U (en) * | 2017-02-20 | 2017-09-05 | 天津星洁汽车排放控制***有限公司 | A kind of fuel delivery injection apparatus for DPF initiative regenerations |
-
2017
- 2017-02-20 CN CN201710090499.3A patent/CN106640283A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030145580A1 (en) * | 1999-12-22 | 2003-08-07 | Wolfgang Ripper | Device and method for generating a mixture of reducing agent and air |
| CN101090765A (en) * | 2004-12-30 | 2007-12-19 | 格伦德福斯管理联合股份公司 | Dosing pump assembly |
| CN101457682A (en) * | 2008-11-13 | 2009-06-17 | 阿尔博耐尔有限公司 | Parts carrier for measurement system |
| CN102748100A (en) * | 2011-04-19 | 2012-10-24 | 苏州派格力减排***有限公司 | Urea measuring jet pump in SCR (Selective Catalytic Reduction) system |
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| CN206468410U (en) * | 2017-02-20 | 2017-09-05 | 天津星洁汽车排放控制***有限公司 | A kind of fuel delivery injection apparatus for DPF initiative regenerations |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110513178A (en) * | 2019-08-13 | 2019-11-29 | 东风商用车有限公司 | A kind of fuel injection control systems and method for DPF initiative regeneration |
| CN110513178B (en) * | 2019-08-13 | 2021-10-08 | 东风商用车有限公司 | Fuel injection control system and method for DPF active regeneration |
| CN113606014A (en) * | 2021-08-31 | 2021-11-05 | 东风商用车有限公司 | DPF regeneration fuel injection system, control method and vehicle |
| CN113606014B (en) * | 2021-08-31 | 2022-06-10 | 东风商用车有限公司 | DPF regeneration fuel injection system, control method and vehicle |
| CN114165313A (en) * | 2021-12-08 | 2022-03-11 | 平原滤清器有限公司 | Hydrocarbon injection system and control method thereof |
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| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20170510 |
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