CN206681820U - For purifying the spraying system of exhaust carbon fume particle - Google Patents
For purifying the spraying system of exhaust carbon fume particle Download PDFInfo
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- CN206681820U CN206681820U CN201720280804.0U CN201720280804U CN206681820U CN 206681820 U CN206681820 U CN 206681820U CN 201720280804 U CN201720280804 U CN 201720280804U CN 206681820 U CN206681820 U CN 206681820U
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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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Abstract
The utility model belongs to automobile technical field, specifically a kind of spraying system for being used to purify exhaust carbon fume particle.The spraying system includes controller and injector；Controller is connected with ECU；Injector is connected with blast pipe；Controller includes switch electromagnetic valve, metering valve, first, second pressure sensor, controller upper shell and controller housing；Switch electromagnetic valve, metering valve, first pressure sensor are arranged on controller housing；Controller upper shell is fastened on controller housing；Second pressure sensor is arranged on controller upper shell；Described controller is connected with injector by fuel pipe.The utility model is a kind of stabilization that injection fuel pressure can be realized by controller；The accurate control of injection fuel oil can be realized by metering valve；The coking risk of nozzle, and the spraying system for being used to purify exhaust carbon fume particle simple in construction, that manufacturing cost is low can be avoided by the nozzle arrangements design of spraying system.
Description
Technical field
The utility model belongs to automobile technical field, for state of enforcement VI and the diesel engine of later Abgasgesetz, tool
Saying for body is a kind of spraying system for being used to purify exhaust carbon fume particle.
Background technology
Increasingly strict with motor vehicle diesel and national Abgasgesetz, the emission problem for solving diesel engine seems extremely urgent
Cut.The whole world widely used diesel particulate trap (DPF) technology tackles diesel emission particulate emission problem at present.It can be with
Caught before Particulate Emission material enters air, so as to effectively reduce diesel particulate emission.But with traveling
The increase of journey, increasing particle deposition cause exhaust back pressure to increase in trap, the economy and dynamic property of engine
Deteriorate, it is therefore necessary to the combustible particle oxidizing fire of trapping is fallen in time, realizes DPF initiative regeneration.DPF active again
During life, diesel fuel is fed in waste pipe using the spraying system of purification exhaust carbon fume particle, passed through
The temperature of gas extraction system is caused to increase after oxidation catalyst (DOC) catalysis oxidation.High-temperature fuel, which enters in DPF, carrys out oxidizing fire
The soot particle deposited in DPF.
Patent document DE102011075591A1 introduces a kind of device that fuel oil is sprayed to processing unit for tail.Should
Device includes the structures such as fuel gallery, cooling-water duct and compressed gas passage, and secondary injection is carried out using compressed gas, can
Effectively reduce nozzle coking risk.But do not described in this patent and how to realize the system injection precision of fuel oil and complicated,
Manufacturing cost is high.
Patent document CN101454546B introduce it is a kind of be used for regenerate, temperature loading and/or heat management device and its from
The injection valve and method of category.Two kinds of valve heads and the structure of valve seat and the structure of two kinds of injection units are contained in patent, is introduced
It is a kind of be used to regenerating the component of exhaust gases of internal combustion engines after-treatment system, the correlation method of temperature loading and/or heat management.
But do not described in patent and how to realize good atomizing effect and the generation of slagging prevention phenomenon.And this system architecture is complicated,
Processing cost is higher.
The content of the invention
The utility model provides a kind of stabilization that injection fuel pressure can be realized by controller；Can by metering valve
To realize the accurate control of injection fuel oil；The coking risk of nozzle can be avoided by the nozzle arrangements design of spraying system, and
The spraying system for being used to purify exhaust carbon fume particle simple in construction, manufacturing cost is low, solves the above-mentioned of existing injection apparatus
Deficiency.
Technical solutions of the utility model are described with reference to the drawings as follows：
A kind of spraying system for being used to purify exhaust carbon particle, the spraying system include controller 1 and injector 7；It is described
Controller 1 be connected with ECU14；Described injector 7 is connected with blast pipe 17；Wherein described controller 1 includes switch electricity
Magnet valve 2, metering valve 3, first pressure sensor 4, second pressure sensor 11, controller upper shell 5 and controller housing 6；Institute
Switch electromagnetic valve 2, metering valve 3, the first pressure sensor 4 stated are arranged on controller housing 6；Described controller upper shell
5 are fastened on controller housing 6 by screw and are connected with switch electromagnetic valve 2 and metering valve 3；Described second pressure sensor
11 are arranged on controller upper shell 5；Described injector 7 includes nozzle 8 and high-temperature heat insulation pad 9；Described nozzle 8 is fixed on
On blast pipe 17；Described high-temperature heat insulation pad 9 is arranged between nozzle 8 and blast pipe 17；Described controller 1 and injector 7
Connected by fuel pipe 10.
Described switch electromagnetic valve 2 includes the first magnet coil 201, the first needle-valve assembly 202, liquid outlet 203, the first valve
Seat 204, the spring 206 of inlet 205 and first；The lower end of described switch electromagnetic valve 2 is connected with controller housing 6, upper end with
Controller upper shell 5 is connected；Described liquid outlet 203 is opened in the lower end of the first valve seat 204, described inlet 205 is opened in
The upper end of one valve seat 204；The lower end of the first described needle-valve assembly 202 contacts with the first valve seat 204, the first needle-valve assembly 202
Upper end contacted with the bottom of the first spring 206；The first described needle-valve assembly 202 is under the compression of the first spring 206 with
One valve seat 204 seals；The first described magnet coil 201 is enclosed on outside the first needle-valve assembly 202.
Described metering valve 3 includes the second magnet coil 301, the second needle-valve assembly 302, the second valve seat 303, dip hatch
304 and second spring 305；The lower end of described metering valve 3 is connected with controller housing 6, upper end and the phase of controller upper shell 5
Even；Described dip hatch 304 is opened on the second valve seat 303；The upper end of the second described needle-valve assembly 302 and the second valve seat 303
Contact, the lower end of the second needle-valve assembly 302 contacts with second spring 305；The second described needle-valve assembly 302 is in second spring
Sealed under 305 compression stress with the second valve seat 303；The second described magnet coil 301 is enclosed on outside the second needle-valve assembly 302.
Quick connector 501 and liquid outlet joint 502 are provided with described controller upper shell 5；Described controller shell
Body 6 is internally provided with pressure chamber 601.
Described nozzle 8 includes housing 801, ball valve 802, the 3rd spring 803, adjust pad 804, swirler the 805, the 3rd
Valve seat 806 and adapter 807；Described ball valve 802, the 3rd spring 803, adjust pad 804, swirler 805, the 3rd valve seat
806 are arranged in housing 801, and described housing 801 is welded as a whole with adapter 807；Described ball valve 802 and housing 801
Conical surface of inboard wall combine to form sealing cone；The upper end of the 3rd described spring 803 contacts with ball valve 802, the 3rd spring 803
Lower end contacts with adjust pad 804；Described adjust pad 804 is arranged between the 3rd spring 803 and swirler 805；It is described
The lower end of swirler 805 contacted with the 3rd valve seat 806；Spray-hole is provided with the 3rd described valve seat 806.
Described swirler 805 includes oil-feed tank 805.1, vortex groove 805.3；Described oil-feed tank 805.1 is opened in vortex
The axial sides of device 805 and with the 3rd valve seat 806 formed fuel gallery；Described vortex groove 805.3 is opened in the bottom of swirler 805
On end surface.
The beneficial effects of the utility model are：The utility model is simple in construction and manufacturing cost is low, real when fuel oil sprays
Now very high accuracy of spray and stability, failure can be diagnosed and handled in time, eddy current spraying nozzle can improve nozzle
Atomization quality and it is not easy to form coking.
Brief description of the drawings
Fig. 1 is the utility model overall structure diagram；
Fig. 2 is the sectional view of controller in the utility model；
Fig. 3 is the sectional view of injector in the utility model；
Fig. 4 is the perspective view of swirler in the utility model；
Fig. 5 is the schematic diagram of the utility model control method.
In figure：1st, controller；2nd, switch electromagnetic valve；201st, the first magnet coil；202nd, the first needle-valve assembly；203rd, liquid is gone out
Mouthful；204th, the first needle-valve assembly；205th, inlet；206th, the first spring；3rd, metering valve；301st, the second magnet coil；302nd,
Two needle-valve assemblies；303rd, the second valve seat；304th, dip hatch；305th, second spring；4th, first pressure sensor；5th, controller upper casing
Body；501st, quick connector；502nd, liquid outlet joint；6th, controller housing；601st, pressure chamber；7th, injector；8th, nozzle；801st, shell
Body；802nd, ball valve；803rd, the 3rd spring；804th, adjust pad；805th, swirler；805.1st, oil-feed tank；805.2nd, vortex groove；
806th, the 3rd valve seat；807th, adapter；9th, high-temperature heat insulation pad；10th, fuel pipe；11st, second pressure sensor；12nd, the first temperature
Spend sensor；13rd, second temperature sensor；14、ECU；15th, forefront pressure sensor；16th, rear end pressure sensor；17th, it is vented
Pipe；18th, fuel film；19、DOC；20、DPF.
Embodiment
Refering to Fig. 1-Fig. 4, a kind of spraying system for being used to purify exhaust carbon particle, the spraying system includes the He of controller 1
Injector 7；Described controller 1 is connected with ECU14；Described injector 7 is connected with blast pipe 17；Wherein described controller
1 includes switch electromagnetic valve 2, metering valve 3, first pressure sensor 4, second pressure sensor 11, controller upper shell 5 and control
Device housing 6；Described switch electromagnetic valve 2, metering valve 3, first pressure sensor 4 are arranged on controller housing 6；Described control
Device upper shell 5 processed is fastened on controller housing 6 by screw and is connected with switch electromagnetic valve 2 and metering valve 3；Described second
Pressure sensor 11 is arranged on controller upper shell 5；Described injector 7 includes nozzle 8 and high-temperature heat insulation pad 9；Described
Nozzle 8 is fixed on blast pipe 17；Described high-temperature heat insulation pad 9 is arranged between nozzle 8 and blast pipe 17；Described controller
1 is connected with injector 7 by fuel pipe 10.
Described controller 1, it act as the fuel oil for establishing steady pressure, and is pressed according to exhaust aftertreatment demand by stable
Power fuel oil is conveyed to injector 7；Described switch electromagnetic valve 2 controls the break-make of pressurization fuel oil caused by outside oil transfer pump；It is described
First pressure sensor 4 monitor the fuel pressure of pressure chamber 601 and be fed back to ECU 14；Described second pressure sensing
Device 11 monitor fuel pipe 10 in pressure and by its pressure feedback to ECU 14；Described metering valve 3 controls steady pressure fuel oil
Emitted dose；The described controller upper shell 5 and integrated switch magnetic valve 2 of controller housing 6, metering valve 3 and first pressure pass
Sensor 4 simultaneously forms fuel gallery.
Refering to Fig. 1, first pressure sensor 4, second pressure sensor 11 form closed-loop control to fuel pressure together.When
When the feedback pressure numerical value of second pressure sensor 11 produces larger difference with the fed back values of first pressure sensor 4, ECU 14
Amendment is made to the injection pulse width of metering valve 3 according to both fed back values.In addition, cause fuel leakage when metering valve 3 breaks down
When causing 10 pressure rise of fuel pipe, second pressure sensor 11 detects pressure anomaly and feeds back to ECU 14, ECU 14
Corresponding treatment measures, such as closing switch magnetic valve 2, indicator light alarm are made according to actual conditions；
Described injector 7, its fuel oil for acting as conveying metering valve 3 are ejected into blast pipe with fine spray pattern
Lu Zhong.Wherein nozzle 8, which is fixed on blast pipe, sprays fuel oil formation fine spray；High-temperature heat insulation pad 9 act as completely cutting off blast pipe
Endogenous pyrogen is to prevent fuel oil coking.
Refering to Fig. 2, described switch electromagnetic valve 2 includes the first magnet coil 201, the first needle-valve assembly 202, liquid outlet
203rd, the first valve seat 204, the spring 206 of inlet 205 and first；The lower end of described switch electromagnetic valve 2 and the phase of controller housing 6
Even, upper end is connected with controller upper shell 5；Described liquid outlet 203 is opened in the lower end of the first valve seat 204, described inlet
205 are opened in the upper end of the first valve seat 204；The lower end of the first described needle-valve assembly 202 contacts with the first valve seat 204, the first pin
The upper end of valve assembly 202 contacts with the bottom of the first spring 206；Pressure of the first described needle-valve assembly 202 in the first spring 206
Contracting is lower to be sealed with the first valve seat 204；The first described magnet coil 201 is enclosed on outside the first needle-valve assembly 202.
When the first magnet coil 201 is powered, electromagnetic force caused by the first magnet coil 201 causes the first needle-valve assembly
202 overcome the first spring 206 spring force upwards motion and most at last the first needle-valve assembly 202 from the position of the first valve seat 204 move
Move to open position.The external pressurized fuel oil now entered from quick connector 501 enters switch electromagnetic valve by inlet 205
Inside 2, and entered by liquid outlet 203 in pressure chamber 601；When the first magnet coil 201 powers off, switch electromagnetic valve 2 is closed,
External pressurized fuel oil cannot be introduced into pressure chamber 601.
Refering to Fig. 2, described metering valve 3 include the second magnet coil 301, the second needle-valve assembly 302, the second valve seat 303,
Dip hatch 304 and second spring 305；The lower end of described metering valve 3 is connected with controller housing 6, upper end and controller upper casing
Body 5 is connected；Described dip hatch 304 is opened on the second valve seat 303；The upper end of the second described needle-valve assembly 302 and the second valve
Seat 303 contacts, and the lower end of the second needle-valve assembly 302 contacts with second spring 305；The second described needle-valve assembly 302 is second
Sealed under the compression stress of spring 305 with the second valve seat 303；The second described magnet coil 301 is enclosed on outside the second needle-valve assembly 302
Portion.
When the second magnet coil 301 is powered, electromagnetic force caused by the second magnet coil 301 causes the second needle-valve assembly
302 overcome second spring 305 spring force upwards motion and most at last the second needle-valve assembly 302 from the position of the second valve seat 303 move
Move to open position.Now steady pressure fuel oil is ejected into liquid outlet joint 502 by dip hatch 304 in pressure chamber 601, wherein
Produce electromagnetic force driving metering valve 3 when second magnet coil 301 is powered to open, voltage stabilizing fuel oil enters nozzle 8 in pressure chamber 601；
The emitted dose of voltage stabilizing fuel oil obtains injection pulse width by the second magnet coil 301 and determined.
Refering to Fig. 2, switch electromagnetic valve 2 and metering valve 3 select identical structure type.Difference between the two is liquid
The fuel flow of mouth 203 is greater than the flow of dip hatch 304.When metering valve works, switch electromagnetic valve can be rapid from outside
Fuel oil is supplemented in order to avoid pressure oscillation larger in build-up of pressure chamber 601.
Refering to Fig. 2, quick connector 501 and liquid outlet joint 502 are provided with described controller upper shell 5；Described
Controller housing 6 is internally provided with pressure chamber 601.Controller upper shell 5 and controller lower house 6 are act as switch electromagnetic valve
2nd, metering valve 3, first pressure sensor 4, second pressure sensor 11 are integrated into controller 1 and provide fuel flow communication passage.Institute
It act as monitoring in pressure chamber 601 pressurization fuel pressure and by its pressure feedback to ECU14 with the first pressure sensor 4 stated,
ECU14 being opened or being closed by the feedback pressure Numerical Control switch electromagnetic valve 2 of fuel pressure transmitter 4, finally realizes pressure
Pressure closed-loop stabilization controls in chamber 601.
Wherein described second pressure sensor 11 communicates with fuel pipe 10, monitor fuel pipe 10 in pressure and by its
Pressure feedback is to ECU 14；After metering valve 3 is opened, the output pressure of second pressure sensor 11 raises rapidly and is equal to pressure chamber
Pressure in 601；After metering valve 3 is closed, the output pressure of second pressure sensor 11 declines rapidly and waited opens pressure with injector 7
Power；ECU 14 constantly monitors the pressure value of second pressure sensor 11, when the pressure value of second pressure sensor 11 is beyond injection
Device 7 opens pressure limit in pressure and pressure chamber 601, then system breaks down, and ECU 14 quotes DTC, reminds user to carry out
Maintenance.
Refering to Fig. 3, described nozzle 8 includes housing 801, ball valve 802, the 3rd spring 803, adjust pad 804, swirler
805th, the 3rd valve seat 806 and adapter 807；Described ball valve 802, the 3rd spring 803, adjust pad 804, swirler 805,
Three valve seats 806 are arranged in housing 801, and described housing 801 is welded as a whole with adapter 807；Described ball valve 802 and shell
The conical surface of inboard wall of body 801 combines to form sealing cone；The upper end of the 3rd described spring 803 contacts with ball valve 802, the 3rd spring
803 lower end contacts with adjust pad 804；Described adjust pad 804 is arranged between the 3rd spring 803 and swirler 805；
The lower end of described swirler 805 contacts with the 3rd valve seat 806；Spray-hole is provided with the 3rd described valve seat 806.
Injector 7 is used to fuel oil forming vortex shape fine spray.When the fuel oil that metering valve 3 sprays passes through fuel pipe 10
Into after nozzle 8, fuel pressure overcomes the spring force of the 3rd spring 803 to cause ball valve 802 to depart from the conical surface of inboard wall of housing 801, combustion
Oil enters inside nozzle 8, and the fluid of rotation is formed by swirler 805；Fluid is by the spray-hole on the 3rd valve seat 806 with essence
Fine atomization state is sprayed into blast pipe.
Housing 801 is used to encapsulate remaining part and be welded as a whole with adapter 807；Ball valve 803 and the inwall of housing 801
The conical surface combines to form sealing cone；Adjust pad 804 is used for fixed spring 803；Swirler 805 is used to fuel oil forming vortex shape
Fine spray.After the fuel oil that metering valve 3 sprays enters nozzle 8 by fuel pipe 10, fuel pressure overcomes the bullet of spring 803
Spring force causes ball valve 802 to depart from the conical surface of inboard wall of housing 801, and fuel oil enters inside nozzle 8, and rotation is formed by swirler 805
Fluid；Fluid sprays into blast pipe 17 by the spray-hole on valve seat 806 with fine spray pattern
Refering to Fig. 4, described swirler 805 includes oil-feed tank 805.1, vortex groove 805.3；Described oil-feed tank 805.1
It is opened in the axial sides of swirler 805 and forms fuel gallery with the 3rd valve seat 806；Described vortex groove 805.3 is opened in vortex
On the bottom end face of device 805.
Oil-feed tank 805.1 cooperatively forms fuel gallery with valve seat, and the fuel oil into nozzle 8 can only be entered by oil-feed tank 805.1
Enter into vortex groove 805.2.After fuel oil enters vortex groove 805.2 from oil-feed tank 805.1, due to the eddy flow of vortex groove 805.2
Structure produces rotation after causing fuel oil outflow vortex groove 805.2.Sprayed eventually through the spray-hole on the 3rd valve seat 80, in formation
Empty taper fine spray.
The fuel oil that said nozzle 8 is used to convey metering valve 3 is ejected into gas exhaust piping with fine spray pattern.
High-temperature heat insulation pad 9 is between nozzle 8 and blast pipe 17, for completely cutting off the high temperature transmission in blast pipe so that spray
The temperature of mouth 8 is much smaller than the temperature of blast pipe 17, prevents that fuel oil is retained inside nozzle 8 occurs high temperature fission generation coking.
First temperature sensor 12 is that oxidative diesel converter inlet is used to measure DOC19 entrances installed in DOC19
Delivery temperature, second temperature sensor 13 are exported for measuring DOC19 outlet exhaust temperatures installed in DOC19.The bases of ECU 14
The feedback information control controller 1 of various sensors, passes through the delivery temperature for adjusting the distributive value of nozzle 8 to control before DPF 20
To remove carbon soot particles.ECU 14 can be diesel particulate trap forefront pressure sensor 15 and rear side pressure according to DPF 20
The differential pressure information that force snesor 16 feeds back calculates DPF 20 carbon soot particles useful load.ECU 14 loads gauge according to carbon soot particles
Calculate base fuel emitted dose model.
During DPF 20 regeneration, the spray fuel into blast pipe of nozzle 8.Most of fuel with exhaust mix and
DOC19 is catalysis oxidation in oxidative diesel converter.The catalysis oxidation of fuel, which improves, is input to DPF20 i.e. diesel engine particles
The delivery temperature of trap is with the carbon soot particles in DPF 20.Nozzle 8 be ejected into some fuel oils in blast pipe not with exhaust
Mix and be deposited on formation fuel film 18 on the inwall 17 of blast pipe.Arrived when fuel film 18 evaporates release fuel oil in blast pipe
When in exhaust, excess fuel will cause the delivery temperature for being input to DPF20 to raise and damaged beyond its tolerable temperature extremely
DPF20, therefore ECU 14 forms injection correction model according to the accumulation rate of fuel film 18 and the evaporation rate of fuel oil, by this mould
Type amendment diesel injection demand.
Refering to Fig. 5, a kind of control method for being used to purify the spraying system of exhaust carbon particle, the control method includes following
Step：
Step 1: the diesel oil that engine provides more than 5bar enters inlet 205, ECU14 roots by quick connector 501
Pressure control switch magnetic valve 2 is turned on and off in the pressure chamber 601 fed back according to first pressure sensor 4, realizes pressure chamber
Pressure stability is in 5bar ± 0.1bar in 601；
Step 2: row's temperature demand that ECU14 works according to diesel particulate trap 20, control metering valve 3 is with 1Hz frequency
Rate opens corresponding duration, realizes diesel oil metered injection；
Step 3: ECU 14 constantly monitors the pressure value of second pressure sensor 11, and after metering valve 3 is opened, the second pressure
The output pressure of force snesor 11 rises very rapidly up to 5bar, if without rising, metering valve 3 occurs stuck being not turned on failure, ECU 14
Report corresponding failure；After metering valve 3 is closed, the output pressure of second pressure sensor 11 declines rapidly from 5bar, if without decline,
There is stuck not ejection failure in injector 7, and ECU 14 reports corresponding failure.
Claims (6)
1. a kind of spraying system for being used to purify exhaust carbon particle, it is characterised in that the spraying system includes controller (1) and spray
Emitter (7)；Described controller (1) is connected with ECU (14)；Described injector (7) is connected with blast pipe (17)；It is wherein described
Controller (1) include switch electromagnetic valve (2), metering valve (3), first pressure sensor (4), second pressure sensor (11),
Controller upper shell (5) and controller housing (6)；Described switch electromagnetic valve (2), metering valve (3), first pressure sensor
(4) it is arranged on controller housing (6)；Described controller upper shell (5) is fastened on controller housing (6) simultaneously by screw
It is connected with switch electromagnetic valve (2) and metering valve (3)；Described second pressure sensor (11) is arranged on controller upper shell (5)
On；Described injector (7) includes nozzle (8) and high-temperature heat insulation pad (9)；Described nozzle (8) is fixed on blast pipe (17)；
Described high-temperature heat insulation pad (9) is arranged between nozzle (8) and blast pipe (17)；Described controller (1) is logical with injector (7)
Cross fuel pipe (10) connection.
2. a kind of spraying system for being used to purify exhaust carbon particle according to claim 1, it is characterised in that described opens
Powered-down magnet valve (2) include the first magnet coil (201), the first needle-valve assembly (202), liquid outlet (203), the first valve seat (204),
Inlet (205) and the first spring (206)；The lower end of described switch electromagnetic valve (2) is connected with controller housing (6), upper end
It is connected with controller upper shell (5)；Described liquid outlet (203) is opened in the lower end of the first valve seat (204), described inlet
(205) it is opened in the upper end of the first valve seat (204)；The lower end of the first described needle-valve assembly (202) connects with the first valve seat (204)
Touch, the upper end of the first needle-valve assembly (202) contacts with the bottom of the first spring (206)；The first described needle-valve assembly (202) exists
Sealed under the compression of first spring (206) with the first valve seat (204)；Described the first magnet coil (201) is enclosed on the first needle-valve
Assembly (202) is outside.
A kind of 3. spraying system for being used to purify exhaust carbon particle according to claim 1, it is characterised in that described meter
Measuring valve (3) includes the second magnet coil (301), the second needle-valve assembly (302), the second valve seat (303), dip hatch (304) and the
Two springs (305)；The lower end of described metering valve (3) is connected with controller housing (6), upper end and controller upper shell (5) phase
Even；Described dip hatch (304) is opened on the second valve seat (303)；The upper end of the second described needle-valve assembly (302) and the second valve
Seat (303) contact, the lower end of the second needle-valve assembly (302) contacts with second spring (305)；The second described needle-valve assembly
(302) sealed under the compression stress of second spring (305) with the second valve seat (303)；Described the second magnet coil (301) is enclosed on
Second needle-valve assembly (302) is outside.
A kind of 4. spraying system for being used to purify exhaust carbon particle according to claim 1, it is characterised in that described control
Quick connector (501) and liquid outlet joint (502) are provided with device upper shell (5) processed；Set inside described controller housing (6)
It is equipped with pressure chamber (601).
A kind of 5. spraying system for being used to purify exhaust carbon particle according to claim 1, it is characterised in that described spray
Mouth (8) includes housing (801), ball valve (802), the 3rd spring (803), adjust pad (804), swirler (805), the 3rd valve seat
And adapter (807) (806)；Described ball valve (802), the 3rd spring (803), adjust pad (804), swirler (805),
Three valve seats (806) are arranged in housing (801), and described housing (801) is welded as a whole with adapter (807)；Described ball
The conical surface of inboard wall of valve (802) and housing (801) combines to form sealing cone；The upper end of the 3rd described spring (803) and ball valve
(802) contact, the lower end of the 3rd spring (803) contacts with adjust pad (804)；Described adjust pad (804) is arranged at
Between three springs (803) and swirler (805)；The lower end of described swirler (805) contacts with the 3rd valve seat (806)；It is described
The 3rd valve seat (806) on be provided with spray-hole.
A kind of 6. spraying system for being used to purify exhaust carbon particle according to claim 5, it is characterised in that described whirlpool
Flowing device (805) includes oil-feed tank (805.1), vortex groove (805.3)；Described oil-feed tank (805.1) is opened in swirler (805) axle
Fuel gallery is formed to side and with the 3rd valve seat (806)；Described vortex groove (805.3) is opened in the bottom of swirler (805)
On end surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720280804.0U CN206681820U (en) | 2017-03-22 | 2017-03-22 | For purifying the spraying system of exhaust carbon fume particle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720280804.0U CN206681820U (en) | 2017-03-22 | 2017-03-22 | For purifying the spraying system of exhaust carbon fume particle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206681820U true CN206681820U (en) | 2017-11-28 |
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ID=60390757
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720280804.0U Active CN206681820U (en) | 2017-03-22 | 2017-03-22 | For purifying the spraying system of exhaust carbon fume particle |
Country Status (1)
| Country | Link |
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| CN (1) | CN206681820U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107060954A (en) * | 2017-03-22 | 2017-08-18 | 中国第汽车股份有限公司 | Spraying system and control method for purifying exhaust carbon fume particle |
-
2017
- 2017-03-22 CN CN201720280804.0U patent/CN206681820U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107060954A (en) * | 2017-03-22 | 2017-08-18 | 中国第汽车股份有限公司 | Spraying system and control method for purifying exhaust carbon fume particle |
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