CN110397761A - Urea pump assembly solenoid directional control valve - Google Patents
Urea pump assembly solenoid directional control valve Download PDFInfo
- Publication number
- CN110397761A CN110397761A CN201910704492.5A CN201910704492A CN110397761A CN 110397761 A CN110397761 A CN 110397761A CN 201910704492 A CN201910704492 A CN 201910704492A CN 110397761 A CN110397761 A CN 110397761A
- Authority
- CN
- China
- Prior art keywords
- valve body
- plectrum
- seal chamber
- urea
- interface
- 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.)
- Granted
Links
- 239000004202 carbamide Substances 0.000 title claims abstract description 74
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 title claims abstract description 70
- 238000010992 reflux Methods 0.000 claims abstract description 15
- 239000007788 liquid Substances 0.000 claims abstract description 13
- 230000000712 assembly Effects 0.000 claims abstract description 8
- 238000000429 assembly Methods 0.000 claims abstract description 8
- 238000005086 pumping Methods 0.000 claims description 28
- 238000007789 sealing Methods 0.000 claims description 28
- 239000012530 fluid Substances 0.000 claims description 26
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 14
- 230000000903 blocking effect Effects 0.000 claims description 11
- 150000003672 ureas Chemical class 0.000 abstract description 4
- 238000010586 diagram Methods 0.000 description 4
- 238000002347 injection Methods 0.000 description 3
- 239000007924 injection Substances 0.000 description 3
- 239000002360 explosive Substances 0.000 description 2
- 239000008358 core component Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- DOTMOQHOJINYBL-UHFFFAOYSA-N molecular nitrogen;molecular oxygen Chemical compound N#N.O=O DOTMOQHOJINYBL-UHFFFAOYSA-N 0.000 description 1
- 230000010355 oscillation Effects 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
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K11/00—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves
- F16K11/02—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit
- F16K11/04—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only lift valves
- F16K11/044—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only lift valves with movable valve members positioned between valve seats
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K11/00—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves
- F16K11/02—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit
- F16K11/04—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only lift valves
- F16K11/052—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only lift valves with pivoted closure members, e.g. butterfly valves
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
- F16K31/06—Actuating devices; Operating means; Releasing devices electric; magnetic using a magnet, e.g. diaphragm valves, cutting off by means of a liquid
- F16K31/0603—Multiple-way valves
- F16K31/0624—Lift valves
- F16K31/0627—Lift valves with movable valve member positioned between seats
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
- F16K31/06—Actuating devices; Operating means; Releasing devices electric; magnetic using a magnet, e.g. diaphragm valves, cutting off by means of a liquid
- F16K31/0675—Electromagnet aspects, e.g. electric supply therefor
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
- F16K31/06—Actuating devices; Operating means; Releasing devices electric; magnetic using a magnet, e.g. diaphragm valves, cutting off by means of a liquid
- F16K31/10—Actuating devices; Operating means; Releasing devices electric; magnetic using a magnet, e.g. diaphragm valves, cutting off by means of a liquid with additional mechanism between armature and closure member
- F16K31/105—Actuating devices; Operating means; Releasing devices electric; magnetic using a magnet, e.g. diaphragm valves, cutting off by means of a liquid with additional mechanism between armature and closure member for rotating valves
-
- 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
- F01N2610/1473—Overflow or return means for the substances, e.g. conduits or valves for the return path
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Magnetically Actuated Valves (AREA)
Abstract
The present invention relates to a kind of reversal valves being more applicable on urea pump assembly.The reversal valve of this urea pump assembly includes valve body, it is characterised in that: left seal chamber and right seal chamber are equipped in valve body；Valve body be equipped with for communicated with urea pump input end into pump interface, for communicated with urea pump outlet end go out pump interface, feed liquor interface for being communicated with urea box, for urea ejection assemblies communicate go out liquid interface；Left seal chamber is communicated with feed liquor interface, and the right seal chamber of institute is communicated with liquid interface out；The reversal valve of this urea pump assembly, being swung in spool by actuator driven plectrum just can control flow direction, to realize that urea switches between liquid out and reflux.This structure of reversing valve is reasonable, performance is stablized, for ease of maintenaince.
Description
Technical field
The present invention relates to a kind of urea pump assemblies, and in particular to a kind of reversal valve applied on urea pump assembly.
Background technique
With the raising of national emission request, more and more diesel vehicles need to install SCR system additional, using in urea and nitrogen
Oxygen compound, to reduce pollution of the diesel vehicle to environment.And the core component of SCR system is urea pump assembly, and general urea
Pump assembly includes that assembly has shell, pressure sensor, throttle valve, reversal valve and pump core.Urea pump assembly will be in urea box
Urea pump to urea injection unit, urea is sprayed by urea injection unit, and in the oxynitrides in vehicle exhaust
With.However, urea liquid will appear icing phenomenon when temperature is lower than -11, urea supply system is caused to can not work normally, because
This is after urea injection unit has sprayed urea, it is also necessary to the urea of internal system is expelled back into urea box, and this flow of urea
To switch operating just completed by reversal valve.However, reversal valve has different structure and model in different application scenarios, and
Also there is a different structures applied on urea pump assembly, existing market needs a kind of to be more applicable for changing on urea pump assembly
To valve.
Summary of the invention
In view of the shortcomings of the prior art, present invention innovation, which provides, a kind of is more applicable for changing on urea pump assembly
To valve.
The reversal valve of this urea pump assembly includes valve body, it is characterised in that: be equipped in the valve body left seal chamber with
Right seal chamber；The valve body is equipped with for being communicated with urea pump input end into pump interface, being used for and urea pump outlet end phase
It is logical go out pump interface, the feed liquor interface for being communicated with urea box, for urea ejection assemblies communicate go out liquid interface；Institute
It states left seal chamber to communicate with feed liquor interface, the right seal chamber is communicated with liquid interface out；The top of the left seal chamber is equipped with a left side
Into pumping holes, the left side is communicated into pumping holes with into pump interface, the lower part of the right seal chamber be equipped with it is right into pumping holes, it is described right into pumping holes
It is communicated with into pump interface；The lower part of the left seal chamber is equipped with left fluid hole, and the left fluid hole is communicated with pump interface out, described
The top of right seal chamber is equipped with right fluid hole, and the right fluid hole is communicated with pump interface out；It is equipped with and is used in the left seal chamber
It blocks left into pumping holes or the left spool of left fluid hole, is equipped in the right seal chamber right into pumping holes or right fluid hole for blocking
Right spool, the left spool and right spool are connected on plectrum, and the plectrum is connect with the actuator that driving plectrum moves up and down.
The valve body is assembled by upper valve body and lower valve body；The lower surface of the upper valve body is equipped with upper left groove and the right side
Upper groove, the left side are located in the groove of upper left into pumping holes, and the right fluid hole is located in upper right groove；The upper table of the lower valve body
Face is equipped with lower-left groove and bottom right groove, and the left fluid hole is located in the groove of lower-left, and described right into pumping holes to be located at bottom right recessed
In slot；Left seal chamber, the upper right groove and the right side are formed by the way that left sealing ring is arranged between the upper left groove and lower-left groove
Right seal chamber is formed by the way that right sealing ring is arranged between lower groove.
The lower valve body is equipped with the first return-flow catheter communicated and leads with the first return and the second reflux communicated
Pipe and the second return, the upper valve body is equipped with the first reflux adapter tube communicated with into pump interface and pump interface communicates out
The second reflux adapter tube, the first reflux adapter tube sealing is located in the first return, and the second reflux adapter tube is located at the
In two returns.
The left sealing ring and right sealing ring are each provided on plectrum, and the left sealing ring surrounds left spool, the right sealing
Corral lives right spool.
The actuator includes electromagnetic valve body, solenoid valve iron core and armature, and the electromagnetic valve body has telescopic chute, described
Armature can be located at up or down in the telescopic chute of electromagnetic valve body, and the armature upper end is connected with the plectrum for blocking plectrum
Seat, is equipped with reset spring between the plectrum seat and electromagnetic valve body, the plectrum seat is equipped with for limiting plectrum up and down
Upper block piece and lower supporting point have the fixture block for blocking plectrum between the upper block piece and lower supporting point.
The upper block piece front end has up inclined front retaining surface, and the upper block piece rear end has up inclined rear gear
Face.
The fixture block is located on upper block piece, and the upper block piece is equipped with connecting hole, and the plectrum seat is equipped with connecting column, institute
It states block piece to be set on connecting column by connecting hole, plectrum seat upper end is equipped with confined planes, the confined planes and upper block piece
Between be equipped with support spring.
The lower end of the plectrum seat has multiple buckles, and the armature surface is equipped with buckle slot, the buckle of the plectrum seat
It snaps onto buckle slot.
Upper sliding bearing is equipped in the telescopic chute of the electromagnetic valve body, the armature is located in sliding bearing.
In flexible trench bottom, the solenoid valve iron core is equipped with properties of journal bearing lubricated, the rank for the solenoid valve iron core setting
The lower end of iron is needle-like portion, and the needle-like portion matching of the armature is arranged in properties of journal bearing lubricated.
According to a kind of reversal valve of urea pump assembly provided by the invention, swung in spool by actuator driven plectrum
It just can control flow direction, to realize that urea switches between liquid out and reflux.This structure of reversing valve is reasonable, performance is steady
It is fixed, for ease of maintenaince.
Detailed description of the invention
Fig. 1 is the perspective view of valve body；
Fig. 2 is the explosive view 1 of valve body；
Fig. 3 is the explosive view 2 of valve body；
Working principle diagram when Fig. 4 is normal hydrojet of the invention；
Working principle diagram when Fig. 5 is reflux of the invention；
Fig. 6 is the structural schematic diagram of actuator；
Fig. 7 is the Local map of actuator；
Fig. 8 is the structural schematic diagram of plectrum.
Specific embodiment
As shown in Figures 1 and 2, the reversal valve of this urea pump assembly includes valve body 1, and left sealing is equipped in valve body 1
Chamber B1 and right seal chamber B2；Being equipped on valve body 1 should be into pump interface into pump interface 10(for what is communicated with urea pump C input end
10 with urea pump C input end be connected to), for communicated with the outlet end urea pump C go out pump interface 11(should go out pump interface 11 and urea
The connection of the pump outlet end C), the feed liquor interface 12(feed liquor interface 12 for communicating with urea box A is connected to urea box A), be used for
Liquid interface 13 should be gone out with the liquid interface 13(out of urea ejection assemblies D communicated to be connected to urea ejection assemblies D)；Wherein, Zuo Mi
Envelope chamber B1 is communicated with feed liquor interface 12, and right seal chamber B2 is communicated with liquid interface 13 out；A left side is equipped on the top of left seal chamber B1
Into pumping holes 14, which is communicated into pumping holes 14 with into pump interface 10, be equipped in the lower part of right seal chamber B2 it is right into pumping holes 17, the right side into
Pumping holes 17 is communicated with into pump interface 10；And the lower part of left seal chamber B1 is equipped with left fluid hole 16, which connects with pump is gone out
Mouth 11 communicates, and is equipped with right fluid hole 15 on the top of right seal chamber B2, which communicates with pump interface 11 out；In addition,
It is equipped in left seal chamber B1 for blocking a left side into pumping holes 14 or the left spool E1 of left fluid hole 16, and is set in right seal chamber B2
Have and be both connected on plectrum 2 for blocking the right side into pumping holes 17 or the right spool E2 of right fluid hole 15, left spool E1 and right spool E2,
The plectrum 2 is connect with the actuator 3 that driving plectrum 2 moves up and down.
Under its working principle such as figure: as shown in figure 4, actuator 3 drives plectrum 2 to move down when being in normal hydrojet state,
At this moment left spool E1 blocks the left fluid hole 16 of the lower part left seal chamber B1, and right spool E2 block the lower part right seal chamber B2 it is right into
Pumping holes 17, urea enter left seal chamber B1, then enter urea pump C into pumping holes 14 by the left side on the top left seal chamber B1
Interior, then urea pump C is pumped into right seal chamber B2 by urea by the right fluid hole 15 on the top right seal chamber B2, finally by
Right seal chamber B2 is flowed into urea ejection assemblies D；And when urea sprayed need to flow back when, as shown in figure 5, actuator 3 drive dial
Piece 2 moves up, and at this moment left spool E1 blocks the left into pumping holes 14 of the top left seal chamber B1, and right spool E2 is blocked on right seal chamber B2
The right fluid hole 15 in portion, the urea in urea ejection assemblies D just flow back into right seal chamber B2, then by under right seal chamber B2
The right side in portion is flowed into urea pump C into pumping holes 17, and then urea is passed through the left fluid hole 16 of the lower part left seal chamber B1 by urea pump C,
It is pumped into left seal chamber B1, is finally flowed into urea box A.By above-mentioned reversal valve, urea pump C do not change pump to feelings
Also the commutation of fluid is able to achieve under condition.
As shown in Figure 2 and Figure 3, for the ease of producing above-mentioned reversal valve, valve body 1 of the invention is by upper valve body B3 under
Valve B 4 assembles；The lower surface of upper valve body B3 is equipped with upper left groove B31 and upper right groove B32, and a left side is located at into pumping holes 14
In the groove B31 of upper left, right fluid hole 15 is located in upper right groove B32；The upper surface of lower valve body B4 be equipped with lower-left groove B41 with
Bottom right groove B42, left fluid hole 16 are located in the groove B41 of lower-left, and the right side is located in the groove B42 of bottom right into pumping holes 17；Upper left groove
Left seal chamber B1, upper right groove B32 and bottom right groove B42 are formed by the way that left sealing ring 21 is arranged between B31 and lower-left groove B41
Between by the way that right sealing ring 22 is arranged form right seal chamber B2.
And be to be connected to upper valve body B3 with lower valve body B4, the present invention is equipped with the first return-flow catheter communicated on lower valve body B4
B44 is equipped with the first return B43 and the second return-flow catheter B46 communicated and the second return B45, upper valve body B3
With into pump interface 10 communicate first reflux adapter tube B33 and out pump interface 11 communicate second reflux adapter tube B34, first flow back
Adapter tube B33 sealing is located in the first return B43, and the second reflux adapter tube B34 is located in the second return B45.
Such as Fig. 8, left sealing ring 21 of the invention and right sealing ring 22 are each provided on plectrum 2, and left sealing ring 21 surrounds left valve
Core E1, right sealing ring 22 surround right spool E2.Since left sealing ring 21 is each provided on plectrum 2 with right sealing ring 22, when on plectrum 2
When lower swing, left sealing ring 21 moves up and down therewith with right sealing ring 22, and sealing ring 21 left in this way and right sealing ring 22 can be under
The through-hole in portion or the through-hole of lower part are bonded more, reach better seal effect.
As shown in fig. 6, this actuator 3 includes electromagnetic valve body 31, solenoid valve iron core 38 and armature 32, electromagnetic valve body 31
With telescopic chute, armature 32 can be located at up or down in the telescopic chute of electromagnetic valve body 31, and solenoid valve iron core 38 is located at telescopic chute
Bottom.Coil inside electromagnetic valve body 31, which is powered, generates magnetic field, and solenoid valve iron core 38 generates magnetic force, and solenoid valve iron core 38 just drives
Armature 32 just moves in telescopic chute.
In order to be driven the plectrum 2 that plectrum 2(is shown in Fig. 8), the present invention is connected in 32 upper end of armature for blocking plectrum 2
Plectrum seat 35 is equipped with reset spring 34 between plectrum seat 35 and electromagnetic valve body 31.When the solenoid valve is energized, armature 32 is in telescopic chute
It inside moves down, such armature 32 is moved down with plectrum seat 35, and plectrum seat 35 is moved down with 2 one end of plectrum；When solenoid valve power-off,
Armature 32 up moves under the action of reset spring 34, and plectrum seat 35 is moved up with 2 one end of plectrum.Due to dialling for reversal valve
Piece 2 is to swing up and down on valve body 1 around a fulcrum, is also around a fulcrum, originally to make plectrum seat 35 be driven plectrum 2 and swing
Invention is equipped with upper block piece 37 and lower supporting point 350 for limiting plectrum 2 up and down on plectrum seat 35, and upper block piece 37 with
There is the fixture block 372 for blocking plectrum 2 between lower supporting point 350, as shown in figure 8, there is a groove 20 on plectrum 2, card
Block 372 is just stuck in groove 20, prevents plectrum 2 from moving left and right, and plectrum 20 is between block piece 37 and lower supporting point 350,
When plectrum seat 35 moves up and down, lower supporting point 350 is used as supporting point, and upper block piece 37 acts on plectrum 2, swings plectrum 2.
By this structure, one assembles can be convenient, as long as allowing fixture block 372 to be stuck in and dialling the groove 20 of plectrum 2 against fixture block 372
In the groove 20 of piece 2；Two can allow plectrum 2 to swing around lower supporting point 350, cater to the swing trend of plectrum 2 itself, protect
Card plectrum seat 35 connect more stable with plectrum 2.
Since the swing of plectrum 2 needs angle, in order to move the swing pivot of plectrum 2 up and down, while guaranteeing plectrum 2
One swing angle, as shown in fig. 7,37 front end of upper block piece has up inclined front retaining surface 370, upper 37 rear end of block piece has past
Upper inclined rear retaining surfac 371, due to front retaining surface 370 and the inclination upwards of rear retaining surfac 371, the swing angle maximum of plectrum 2 can be with
It is closed with front retaining surface 370 or the complete face of rear retaining surfac 371 and face paste.
For the ease of making and assembling, fixture block 372 of the invention is located on upper block piece 37 and (is integrally formed), and upper block piece
37 are equipped with connecting hole, and plectrum seat 35 is equipped with connecting column, and upper block piece 37 is just set on connecting column by connecting hole, and is being dialled
35 upper end of bar is equipped with confined planes 351, and support spring 36 is equipped between confined planes 351 and upper block piece 37.That is, upper gear
Part 37 is single injection-molded, and plectrum seat 35 is also that (the two is difficult once to be molded into single injection-molded due to structure problem
Type), upper block piece 37 is just set on connecting column by connecting hole, and upper block piece 37 is fixed on plectrum seat by support spring 36
On 35, assemble also very convenient；In addition, support spring 36 can also provide the surplus that block piece 37 moves up and down, block piece in guarantee
37 can give the enough swing angles of plectrum 2, and (the original position of plectrum seat 35 cannot be guaranteed that plectrum 2 is driven to generate enough angles of oscillation
Degree, and support spring 36 can give the surplus of about 35 stroke of plectrum seat).It, only need to be by upper block piece if upper block piece 37 damages
37 disassemble, and replacement is also very convenient, while can reduce maintenance cost.
In order to allow plectrum seat 35 to be detachably connected on armature 32, the lower end of plectrum seat 35 has multiple buckles, armature
32 surfaces are equipped with buckle slot, and plectrum seat 35 is just snapped onto buckle slot by it.Pass through this structure, plectrum seat 35
Very easy assembly and disassembly, convenient replacement in the future.
Finally it is worth mentioning that the verticality moved up and down for holding armature 32 is (concentric with telescopic chute in other words
Degree), the present invention is equipped with upper sliding bearing 33 in the telescopic chute of electromagnetic valve body 31, and armature 32 is just located in sliding bearing 33.
In addition, solenoid valve iron core 38 is located at the bottom of telescopic chute, and solenoid valve iron core 38 is equipped with down in order to further increase verticality
Sliding bearing 39, the lower end of armature 32 are needle-like portion 320, and the matching of needle-like portion 320 of armature is arranged in properties of journal bearing lubricated 39.
Claims (10)
1. urea pump assembly solenoid directional control valve includes valve body (1), it is characterised in that: be equipped with left seal chamber in the valve body (1)
(B1) with right seal chamber (B2)；The valve body (1) be equipped with for communicate with urea pump (C) input end into pump interface (10),
Go out pump interface (11), the feed liquor interface (12) for communicating with urea box (A), use for what is communicated with the outlet end urea pump (C)
In with urea ejection assemblies (D) communicate go out liquid interface (13)；The left seal chamber (B1) communicates with feed liquor interface (12), institute
Right seal chamber (B2) is stated to communicate with liquid interface out (13)；The top of the left seal chamber (B1) be equipped with a left side into pumping holes (14), it is described
A left side is communicated into pumping holes (14) with into pump interface (10), and the lower part of the right seal chamber (B2) is equipped with right into pumping holes (17), the right side
It is communicated into pumping holes (17) with into pump interface (10)；The lower part of the left seal chamber (B1) is equipped with left fluid hole (16), and the left side goes out
Fluid apertures (16) is communicated with pump interface out (11), and the top of the right seal chamber (B2) is equipped with right fluid hole (15), the right liquid out
Hole (15) is communicated with pump interface out (11)；It is equipped in the left seal chamber (B1) left into pumping holes (14) or left fluid hole for blocking
(16) left spool (E1), the right seal chamber (B2) is interior to be equipped with for blocking the right side into pumping holes (17) or the right side of right fluid hole (15)
Spool (E2), the left spool (E1) and right spool (E2) are connected on plectrum (2), on the plectrum (2) and driving plectrum (2)
The actuator (3) of lower movement connects.
2. urea pump assembly solenoid directional control valve according to claim 1, it is characterised in that: the valve body (1) is by upper valve body
(B3) assemble with lower valve body (B4)；The lower surface of the upper valve body (B3) is equipped with upper left groove (B31) and upper right groove
(B32), the left side is located in upper left groove (B31) into pumping holes (14), and the right fluid hole (15) is located at upper right groove (B32)
It is interior；The upper surface of the lower valve body (B4) is equipped with lower-left groove (B41) and bottom right groove (B42), the left fluid hole (16)
In lower-left groove (B41), the right side is located in bottom right groove (B42) into pumping holes (17)；The upper left groove (B31) and a left side
Left seal chamber (B1) is formed by the way that left sealing ring (21) is arranged between lower groove (B41), the upper right groove (B32) and bottom right are recessed
Right seal chamber (B2) is formed by the way that right sealing (22) circle is arranged between slot (B42).
3. urea pump assembly solenoid directional control valve according to claim 2, it is characterised in that: the lower valve body (B4) is equipped with
The first return-flow catheter (B44) communicated and the first return (B43) and the second return-flow catheter (B46) communicated with second time
Stream interface (B45), the upper valve body (B3) are equipped with the first reflux adapter tube (B33) communicated with into pump interface (10) and go out to pump
The second reflux adapter tube (B34) that interface (11) communicates, the first reflux adapter tube (B33) sealing are located at the first return
(B43) in, the second reflux adapter tube (B34) is located in the second return (B45).
4. urea pump assembly solenoid directional control valve according to claim 2 or 3, it is characterised in that: the left sealing ring (21)
It is each provided on plectrum (2) with right sealing ring (22), the left sealing ring (21) surrounds left spool (E1), the right sealing ring (22)
Surround right spool (E2).
5. urea pump assembly solenoid directional control valve according to claim 1, it is characterised in that: the actuator (3) includes
Electromagnetic valve body (31), solenoid valve iron core (38) and armature (32), the electromagnetic valve body (32) have telescopic chute, the armature (32)
It can be located at up or down in the telescopic chute of electromagnetic valve body (31), armature (32) upper end is connected with for blocking plectrum (2)
Plectrum seat (35), between the plectrum seat (35) and electromagnetic valve body (31) be equipped with reset spring (34), the plectrum seat (35)
It is equipped with the upper block piece (37) for limiting plectrum up and down and lower supporting point (350), the upper block piece (37) and lower supporting point
(350) there is the fixture block (372) for blocking plectrum between.
6. urea pump assembly solenoid directional control valve according to claim 5, it is characterised in that: upper block piece (37) the front end tool
There is up inclined front retaining surface (370), upper block piece (37) rear end has up inclined rear retaining surfac (371).
7. urea pump assembly solenoid directional control valve according to claim 6, it is characterised in that: the fixture block (372) is located at upper
On block piece (37), the upper block piece (37) is equipped with connecting hole, and the plectrum seat (35) is equipped with connecting column, the upper block piece
(37) it is set on connecting column by connecting hole, plectrum seat (35) upper end is equipped with confined planes (351), the confined planes
(351) support spring (36) are equipped between upper block piece (37).
8. urea pump assembly solenoid directional control valve according to claim 5, it is characterised in that: the lower end of the plectrum seat (35)
With multiple buckles, armature (32) surface is equipped with buckle slot, and the buckle of the plectrum seat (35) snaps onto buckle slot.
9. urea pump assembly solenoid directional control valve according to claim 5, it is characterised in that: electromagnetic valve body (31) are stretched
Upper sliding bearing (33) are equipped in contracting slot, the armature (32) is located in sliding bearing (33).
10. urea pump assembly solenoid directional control valve according to claim 5, it is characterised in that: the solenoid valve iron core (38)
It is located at flexible trench bottom, the solenoid valve iron core (38) is equipped with properties of journal bearing lubricated (39), and the lower end of the armature (32) is needle
Shape portion (320), needle-like portion (320) the matching setting of the armature (32) is in properties of journal bearing lubricated (39).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910704492.5A CN110397761B (en) | 2019-07-31 | 2019-07-31 | Electromagnetic reversing valve of urea pump assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910704492.5A CN110397761B (en) | 2019-07-31 | 2019-07-31 | Electromagnetic reversing valve of urea pump assembly |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110397761A true CN110397761A (en) | 2019-11-01 |
| CN110397761B CN110397761B (en) | 2024-03-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910704492.5A Active CN110397761B (en) | 2019-07-31 | 2019-07-31 | Electromagnetic reversing valve of urea pump assembly |
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| Country | Link |
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| CN (1) | CN110397761B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110985170A (en) * | 2019-12-18 | 2020-04-10 | 华中科技大学 | Non-air-assisted urea pump adopting novel reversing valve and application thereof |
| CN113639083A (en) * | 2021-08-06 | 2021-11-12 | 武冈市永锐电子科技有限公司 | Vehicle built-in system |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2197500Y (en) * | 1994-07-13 | 1995-05-17 | 中外合资绍兴春晖冷冻器材有限公司 | Four way electromagnetic chargeover valve |
| EP2487345A2 (en) * | 2011-02-09 | 2012-08-15 | Prettl, Rolf | Urea injection system and valve assembly for same |
| EP2600045A1 (en) * | 2011-12-01 | 2013-06-05 | SVM Schultz Verwaltungs-GmbH & Co. KG | Electromagnetically actuated valve |
| CN206495709U (en) * | 2017-02-10 | 2017-09-15 | 宁波市鄞州枢融电子有限公司 | A kind of urea structure of reversing valve |
| CN207539375U (en) * | 2017-07-31 | 2018-06-26 | 佛山市顺德区澄宇液压机电有限公司 | Waterproof hydraulic electromagnetic change valve |
| CN210372128U (en) * | 2019-07-31 | 2020-04-21 | 浙江锦佳汽车零部件有限公司 | Electromagnetic directional valve of urea pump assembly |
-
2019
- 2019-07-31 CN CN201910704492.5A patent/CN110397761B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2197500Y (en) * | 1994-07-13 | 1995-05-17 | 中外合资绍兴春晖冷冻器材有限公司 | Four way electromagnetic chargeover valve |
| EP2487345A2 (en) * | 2011-02-09 | 2012-08-15 | Prettl, Rolf | Urea injection system and valve assembly for same |
| EP2600045A1 (en) * | 2011-12-01 | 2013-06-05 | SVM Schultz Verwaltungs-GmbH & Co. KG | Electromagnetically actuated valve |
| CN206495709U (en) * | 2017-02-10 | 2017-09-15 | 宁波市鄞州枢融电子有限公司 | A kind of urea structure of reversing valve |
| CN207539375U (en) * | 2017-07-31 | 2018-06-26 | 佛山市顺德区澄宇液压机电有限公司 | Waterproof hydraulic electromagnetic change valve |
| CN210372128U (en) * | 2019-07-31 | 2020-04-21 | 浙江锦佳汽车零部件有限公司 | Electromagnetic directional valve of urea pump assembly |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110985170A (en) * | 2019-12-18 | 2020-04-10 | 华中科技大学 | Non-air-assisted urea pump adopting novel reversing valve and application thereof |
| CN110985170B (en) * | 2019-12-18 | 2021-01-19 | 华中科技大学 | Non-gas-assisted urea pump and application thereof |
| CN113639083A (en) * | 2021-08-06 | 2021-11-12 | 武冈市永锐电子科技有限公司 | Vehicle built-in system |
| CN113639083B (en) * | 2021-08-06 | 2023-04-14 | 武冈市永锐电子科技有限公司 | Vehicle built-in system |
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| Publication number | Publication date |
|---|---|
| CN110397761B (en) | 2024-03-01 |
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Country or region after: China Address after: No. 885, Jiangxin Road, Shangwang Street, Rui'an City, Wenzhou City, Zhejiang Province 325200 Applicant after: ZHEJIANG JINJIA AUTOMOBILE PARTS Co.,Ltd. Address before: 325200 Ruian Economic Development Zone, Ruian City, Wenzhou City, Zhejiang Province Applicant before: ZHEJIANG JINJIA AUTOMOBILE PARTS Co.,Ltd. Country or region before: China |
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