CN106948909A - A kind of porous extruding swirl injection valve - Google Patents
A kind of porous extruding swirl injection valve Download PDFInfo
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- CN106948909A CN106948909A CN201611158049.5A CN201611158049A CN106948909A CN 106948909 A CN106948909 A CN 106948909A CN 201611158049 A CN201611158049 A CN 201611158049A CN 106948909 A CN106948909 A CN 106948909A
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- Prior art keywords
- eddy flow
- porous
- runner
- orifice plate
- porous extruding
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Classifications
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- 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
- F01N3/24—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 constructional aspects of converting apparatus
- F01N3/28—Construction of catalytic reactors
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
- F01N3/08—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
- F01N3/10—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust
- F01N3/18—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by methods of operation; Control
- F01N3/20—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by methods of operation; Control specially adapted for catalytic conversion ; Methods of operation or control of catalytic converters
- F01N3/2066—Selective catalytic reduction [SCR]
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N2610/00—Adding substances to exhaust gases
- F01N2610/02—Adding substances to exhaust gases the substance being ammonia or urea
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N2610/00—Adding substances to exhaust gases
- F01N2610/14—Arrangements for the supply of substances, e.g. conduits
- F01N2610/1453—Sprayers or atomisers; Arrangement thereof in the exhaust apparatus
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Nozzles (AREA)
Abstract
The invention discloses a kind of porous extruding swirl injection valve, the main eddy flow runner that at least one waist type is provided with porous extruding eddy flow jet orifice plate, each eddy flow runner is formed by being connected between spirality lateral wall, arc line shaped madial wall and inlet side wall with tangential mode transition, the eddy flow center of eddy flow runner or offsettingly offers a spray orifice through porous extruding eddy flow jet orifice plate thickness of slab.Fluid from sealed steel ball and the gap of valve seat and valve opening sprue flow into inlet and then enter eddy flow runner, formed at least one disk serpentine runner, each disk serpentine runner it is swirl stabilized, be independent of each other.Fluid is before ejecting, by the crowded stream of inlet, add tubulence energy, radial rotary is formed in eddy flow runner, axial jet velocity is reduce further so that solution scatters after spray orifice ejection in radial and axial space, under shorter penetration distance, the crushing effect of solution droplets is enhanced, reduces spray particle diameter, improves atomization quality.
Description
Technical field
The present invention relates to a kind of porous extruding swirl injection valve, the fluid for being had higher requirements to atomization quality directly sprays
Atomising art is penetrated, the injector and/or metering valve of exhaust apparatus more particularly, in internal combustion engine.
Background technology
Increasingly serious with environmental problem and energy crisis, Abgasgesetz is increasingly strict, increasing energy-saving and emission-reduction
Technology is used on vehicle, and wherein SCR (SCR) is that a kind of be injected to reducing agent such as urea liquid is started
The technology of oxynitride discharge is purified in machine waste gas stream.This liquid reducer of urea liquid be injected in blast pipe, it is necessary to
Evaporate as soon as possible, be pyrolyzed generation ammonia, the transformation efficiency of oxynitrides, or even big drop otherwise can be influenceed to produce blast pipe
Crystallisation problems, block blast pipe, therefore higher requirement proposed to the atomization quality of injection valve.
Urea injector described in patent CN201020521660.1, can mainly be formed by being designed on valve seat
The stepped hole of turbulent flow improves the flow regime of urea liquid, and to improve the atomization quality of urea liquid, and jet orifice plate is without special
Structure design, simply at least one spray orifice is processed in flat jet orifice plate.The urea liquid injection valve of such a structure, spray
Mist quality is general, and mean drop diameter is larger.
Gasoline engine spiral-flow type fuel injector described in patent CN200910096849.2, mainly by adding on valve seat
The spray orifice of work major diameter, while at least one guiding gutter is processed on valve seat, when valve element is moved up, at least one guiding gutter and spray
Hole is connected.The patent makes fuel oil after spray orifice ejection into umbrella expansion from the flow regime of fuel oil is improved, final to improve spraying
Quality.But such a single hole major diameter orifice type gasoline eddy flow fuel injector, because injection diameter is larger, so outlet drop is initial
Particle diameter is big, and atomization quality improves limited.
Fuelinjection nozzle described in patent CN200710162684.5, mainly by setting multiple on spray orifice part
Spray orifice, while reducing injection particle diameter using the turbulent flow of spray-hole upstream generation, but needs to avoid the interference between adjacent spraying.
The present invention utilizes porous extruding swirl injection, by designing the porous eddy flow runner of special construction in jet orifice plate,
Atomization quality can largely be improved in smaller dimensional space.
The content of the invention
Present invention aims at the atomization quality of lifting existing urea solution jet there is provided a kind of fluid injection valve, lead to
The special construction of porous extruding eddy flow jet orifice plate is crossed, drop initial breaking apart effect is significantly increased, reduces penetration distance, improve spraying
Quality.
The present invention is achieved through the following technical solutions：
It is provided with valve seat, valve seat and is offered for placing in a kind of porous extruding swirl injection valve, including valve pocket, valve pocket
The accommodating cavity of sealed steel ball, the face that sealed steel ball separates contact with valve seat is sealing surface, and valve seat lower surface is fluid issuing end face,
A valve opening than the diameter undergauge of sealing surface is offered through sealing surface and fluid issuing end face, also including porous extruding eddy flow
Jet orifice plate a, end face of porous extruding eddy flow jet orifice plate is close to the setting of fluid issuing end face, the porous extruding eddy flow spray
Orifice plate is provided with the eddy flow runner of at least one waist type, and each eddy flow runner is by spirality lateral wall, arc line shaped madial wall and enters
Connect to be formed with tangential mode transition between the wall of mouthful side, the eddy flow center of eddy flow runner or offsettingly offer one and run through
The spray orifice of porous extruding eddy flow jet orifice plate thickness of slab, and the farthest ledge of arc line shaped madial wall exceedes the edge of spray orifice.The present invention
Eliminating conventional eddy flow flow passage structure needs to design convolution connection path, and the liquid entered from valve opening is directly entered eddy flow runner
It is smaller needed for progress eddy flow, therefore generation eddy flow, it is easy to accomplish the miniaturization of injection valve head.
Preferably, porous extruding eddy flow jet orifice plate is shaped as flat bowl-type or disc, porous extruding eddy flow jet orifice plate
Internal face fitted with the fluid issuing end face of valve seat.
Further, the eddy flow runner is to be implemented on the internal face of jet orifice plate by deep gouge, forms eddy flow runner
Deep gouge is by punching press or is otherwise machined into；The projection that jet orifice plate outside wall surface is formed by punching press deep gouge, can be ground further
Remove so that jet orifice plate outside wall surface is smooth, be more beneficial for lifting atomization quality；The eddy flow runner of the waist type is in porous extruding rotation
Stream jet orifice plate is radially extended, and inlet end face region connects to form at least one separate inlet with valve opening.
Further, described eddy flow runner is uniformly arranged on the internal face of porous extruding eddy flow jet orifice plate.
By advantageously forming eddy flow between the spiral form lateral wall end of eddy flow runner of the present invention and inlet side wall
Arc-shaped or other arc shapeds madial wall connection, and the farthest ledge of madial wall exceed spray orifice edge；So that fluid
In eddy flow runner in flow process, the moving radius of fluid constantly reduces, interior when close to rotation round end (360 degree)
The special setting of side wall projection, reduces the conflict of eddy flow end streamline, can effectively tissue fluid movement locus, realize 360
Spend spiral.In addition, simple madial wall connection design, knuckle size is larger, it is easy to which punch process is molded.
Preferably, the spirality lateral wall of the eddy flow runner is to describe logatithmic spiral, gold helical or involute
Mode is extended.
A kind of porous extruding swirl injection valve of the present invention, is used, spray orifice hole available for urea liquid injection in SCR system
The size in footpath is processed according to traffic demand using electric spark or other perforation means.
Further, the axis of described spray orifice and the diameter parallel or angle at an acute angle of porous extruding eddy flow jet orifice plate.
When porous extruding swirl injection valve work, sealed steel ball leaves sealing surface, and fluid is from sealed steel ball and valve seat
Gap and valve opening sprue flow into the inlet of corresponding eddy flow runner, form at least one disk serpentine runner.
Further set, at least one locating notch offered on the excircle of described porous extruding eddy flow jet orifice plate,
Locating and machining for spray orifice.
The beneficial effects of the invention are as follows：
The present invention in porous extruding eddy flow jet orifice plate by opening up waist type eddy flow runner, and fluid is from sealed steel ball and valve seat
Gap and valve opening sprue flow into the inlet of corresponding eddy flow runner, form at least one disk serpentine runner, each
Disk serpentine atomization runner in it is swirl stabilized, be independent of each other.Fluid before ejecting, by the crowded stream of inlet, adds turbulence
Can, radial rotary is formed in eddy flow runner, axial jet velocity is reduce further so that solution is after spray orifice ejection in footpath
Scattered to axial space, under shorter penetration distance, enhance the crushing effect of solution droplets, reduce spray particle diameter,
Improve atomization quality.
Brief description of the drawings
Fig. 1 is the porous assembling relationship figure for extruding eddy flow jet orifice plate in the present invention；
Fig. 2 overlooks graph structure for the porous extruding eddy flow jet orifice plate in the present invention；
Fig. 3 is at least one mutual independent inlet schematic diagram in the present invention；
Fig. 4 is at least one disk serpentine runner schematic diagram in the present invention；
Fig. 5 is the relation schematic diagram of the farthest ledge of madial wall and spray orifice edge in the present invention；
Fig. 6 is that lateral wall contour line draws schematic diagram for gold helical " golden rectangle method "；
Fig. 7 be lateral wall contour line be gold helical when, solution atomization runner in flow vector schematic diagram；
Fig. 8 be lateral wall contour line be logatithmic spiral when, solution atomization runner in flow vector schematic diagram.
Accompanying drawing icon explanation：The porous extruding swirl injection valves of 1-；4- valve pockets；6- valve seats；601- sealing surfaces；602- fluids go out
Mouth end face；The porous extruding eddy flow jet orifice plates of 7-；8- eddy flow runners；801- lateral walls；802- madial walls；803- inlet end faces；9-
Valve opening；10- inlets；11- spray orifices；12- sealed steel balls；13- sprues；14- disk serpentine runners；15- locating notches.
Embodiment
Porous extruding swirl injection valve of the present invention is used in discharging unit of internal combustion engine SCR system, and injection and atomization are also
Former agent, such as urea liquid, for reducing the oxynitrides in I. C. engine exhaust, including porous extruding swirl injection valve 1, valve pocket
4th, valve seat 6, sealing surface 601, fluid issuing end face 602, porous extruding eddy flow jet orifice plate 7, eddy flow runner 8, lateral wall 801, interior
It is side wall 802, inlet end face 803, valve opening 9, inlet 10, spray orifice 11, sealed steel ball 12, sprue 13, disk serpentine runner 14, fixed
The position grade technical characteristic of breach 15.
Porous extruding swirl injection valve of the present invention is arranged on the head of urea liquid injector, including valve pocket, valve pocket
The accommodating cavity offered in valve seat, valve seat for placing sealed steel ball is inside provided with, sealed steel ball separates the face of contact with valve seat
For sealing surface, valve seat lower surface is fluid issuing end face, and offering one through sealing surface and fluid issuing end face compares sealing surface
Diameter undergauge valve opening, also including porous extruding eddy flow jet orifice plate, an end face of porous extruding eddy flow jet orifice plate is close to
Fluid issuing end face is set, and the porous extruding eddy flow jet orifice plate is provided with the eddy flow runner of at least one waist type, each eddy flow
Runner is formed by being connected between spirality lateral wall, arc line shaped madial wall and inlet side wall with tangential mode transition, eddy flow
The eddy flow center of runner offsettingly offers a spray orifice through porous extruding eddy flow jet orifice plate thickness of slab, as shown in Figure 1, 2.
According to a kind of advantageous embodiment, the size in spray orifice aperture is according to traffic demand, using electric spark or laser etc.
Other perforation means are processed.The porous extruding eddy flow jet orifice plate is processed into flat bowl-type or disk, and inner wall surface thereof and valve
The fluid issuing end face laminating of seat；The eddy flow runner is only implemented on the internal face of jet orifice plate by deep gouge, and deep gouge is by punching press
Or other cold working modes are processed, radially-protruding deep gouge and valve opening connect and formation corresponding at least one is separate
Inlet, as shown in Figure 3.The projection that jet orifice plate outside wall surface is formed by punching press deep gouge, can be ground removal to jet orifice plate outside wall surface
Into a plane, spray orifice length is further shorten, is more beneficial for lifting atomization quality.
As shown in figure 4, according to a kind of advantageous embodiment, the spiral form lateral wall end of the eddy flow runner and import
Connected between the wall of side by being conducive to the arc-shaped of shape eddy flow or the madial wall of other arc shapeds, and the farthest ledge of madial wall
More than the edge of spray orifice；So that fluid, in eddy flow runner in flow process, the moving radius of fluid constantly reduces, close to rotation
When turning circumferential end (360 degree), the special setting of madial wall projection reduces the conflict of eddy flow end streamline, effectively organizes
Fluid motion track.
When porous extruding swirl injection valve work, sealed steel ball leaves sealing surface, and fluid is from sealed steel ball and valve seat
Gap and valve opening sprue are flowed into the inlet of eddy flow runner, form at least one disk serpentine runner, each disk serpentine atomization
In runner it is swirl stabilized, be independent of each other.Fluid before ejecting, by the crowded stream of inlet, adds tubulence energy, in eddy flow stream
Radial rotary is formed in road, axial jet velocity is reduce further so that urea liquid is after spray orifice ejection in radial-axial
Space is scattered, under shorter penetration distance, strengthens the crushing effect of drop, reduces spray particle diameter, improves atomization quality.
As shown in figure 5, according to a kind of advantageous embodiment, the contour line for making auxiliary segment uv and madial wall is tangent, make
The contour line of auxiliary segment yz and spray orifice is tangent, and line segment uv is more than from being met with a distance from porous extruding eddy flow jet orifice plate central point O
The luxuriant porous extruding eddy flow jet orifice plate central point O of line segment yz distance.According to a kind of advantageous embodiment, described at least one
Line segment centered on the straight line that the eddy flow center of individual eddy flow runner is connected with helical form lateral wall end-destination, helical form lateral wall begins
The extended line of Duan Yu centers line segment intersects at a point, or spiral form lateral wall starting point Luo centers line segment extended line on.
The straight line that the eddy flow center O ' and spiral form lateral wall profile end-destination S of each eddy flow runner are connected is line segment O ' S, spiral form
Lateral wall profile starting point P and line segment O ' S extended line intersects at a point, or the starting point of spiral form lateral wall falls in center line
On the extended line of section.
According to a kind of advantageous embodiment, the madial wall starting point Q and center line segment of described each eddy flow runner
Extended line intersects at a point, or on the extended line of madial wall starting point Q Luo centers line segment.
Preferably, the spiral form lateral wall of the eddy flow runner is according to logatithmic spiral, gold helical or involute rule
Built.
According to one of which embodiment, the contour line of lateral wall is provided by gold helical, and fluid flows in eddy flow runner
Dynamic vector figure is as shown in Figure 7.
The change of the sweep of the contour line of lateral wall, defers to following polar coordinates formula：
In formula：R is sweep；W be gold helical in the range of [0,2 π], the distance between starting point and terminal；θ is
The angle of rotation；Curve and the distance at eddy flow center when b is θ=2 π；For gold helical scale factor；
Also can be by cartesian coordinate formula：
Z=0
W be gold helical in the range of [0,2 π], the distance between starting point and terminal；T is time step.
The gold helical that the contour line of lateral wall is deferred to can also be done closely during drafting using " golden rectangle method "
Like the technique of painting, i.e., against three sides a square, that remaining portion are made golden rectangle (the ratio between wide length is 0.618 rectangle) is inner
It is again then a golden rectangle to divide, and can make square again successively.First of these " golden rectangles " is pressed afterwards suitable
Sequence is connected, so that polar diameter adjacent in same radius compares P1/P2=0.618, you can obtain a gold helical.
Draw as shown in Figure 6：
1st, the rectangle ABCD that the ratio between wide length is 0.618 is made.
2nd, square ABEF is made against rectangle ABCD three sides, then the ratio between remaining rectangle part CDFE width length is still
0.618。
3rd, square CEHI is made against rectangle CDFE three sides, then the ratio between remaining rectangle part DFHI width length is still
0.618。
4th, the like, square IDJK, golden rectangle JFHK and square IFNM, golden rectangle MNHK are made successively.
5th, using point F as the center of circle, FA draws for radiusJustify point A, point E connections.
6th, using point H as the center of circle, HE draws for radiusJustify point E, point I connections.
7th, using point K as the center of circle, KI draws for radiusJustify point I, point J connections.
8th, using point M as the center of circle, MJ draws for radiusJustify point J, point N connections.
By above step, the gold helical AEIJN in the range of 2 π can be drawn out, the pole location of helical is by line segment
The common intersection point of BD, AI, CF, EJ determines, also the as eddy flow center in atomized flow road.
According to wherein another embodiment, the contour line of lateral wall can be formed by the rule of logatithmic spiral, and fluid is in rotation
Flow flow vector figure in runner as shown in Figure 8.
Flow regime shown in Fig. 7, Fig. 8, it can be seen that fluid enters the eddy flow runner of jet orifice plate from valve opening, all shows as
The flowing surveyed before this to jet orifice plate is extruded, then direct eddy flow, is finally sprayed from respective spray orifice.
The change of the sweep of the contour line of lateral wall, defers to following polar coordinates formula：
The change of sweep, defers to below equation：
R=aek*θ θ∈[0,2π]
In formula：R is sweep；A is base radius；D is base circle diameter (BCD)；W be logatithmic spiral in the range of [0,2 π], rise
The distance between initial point and terminal.
Also can be by cartesian coordinate formula：
Z=0
In formula：K is logatithmic spiral scale factor；D is base circle diameter (BCD), and W is gold helical at [0,2 π]
In the range of, the distance between starting point and terminal.
The contour line of described lateral wall can also be formed by the rule of involute, not made specifically in patent of the present invention
It is bright.
According to a kind of advantageous embodiment, described eddy flow runner is preferably uniform on the internal face of jet orifice plate；It is described
Spray orifice axis and it is porous extruding eddy flow jet orifice plate diameter parallel or at an acute angle.
According to a kind of advantageous embodiment, the spiral form lateral wall of described at least one eddy flow runner and madial wall and
Inlet side wall is connected with the transition of tangential mode.
According to a kind of advantageous embodiment, the inlet end face of described eddy flow runner is from porous eddy flow jet orifice plate center
Apart from L, as shown in figure 3, the basic circle half formed according to the uniform embodiment of eddy flow runner, L for the rotation arrangement of inlet end face
Footpath, the basic circle size is less than the aperture of valve opening sprue, to ensure that feed liquor is unobstructed.
According to a kind of advantageous embodiment, by punching press or other on the excircle of described porous extruding eddy flow jet orifice plate
Mode is machined with least one locating notch, the locating and machining for spray orifice.
Porous extruding eddy flow jet orifice plate designed according to this invention, fluid reaches spray orifice course of injection by crowded from valve opening
The double action of pressure and eddy flow so that tubulence energy and tangential swirl the speed increase of fluid, the axial exit velocity of spray orifice subtract
Small, penetration distance reduces, and can effectively strengthen the breakup of drop, improves atomization quality.
Technological means disclosed in technical scheme is not limited only to the technological means disclosed in above-mentioned technological means,
Also include being combined constituted technical scheme by above technical characteristic.
Using the above-mentioned ideal case according to the present invention as enlightenment, by above-mentioned description, relevant staff is complete
Various changes and amendments can be carried out without departing from the scope of the technological thought of the present invention'.This invention it is technical
Scope is not limited to the content on specification, it is necessary to its technical scope is determined according to right.
Claims (8)
- Offered 1. being provided with a kind of porous extruding swirl injection valve, including valve pocket, valve pocket in valve seat, valve seat for placing close The accommodating cavity of steel ball is sealed, the face that sealed steel ball separates contact with valve seat is sealing surface, and valve seat lower surface is fluid issuing end face, is passed through Wear sealing surface and offer a valve opening than the diameter undergauge of sealing surface with fluid issuing end face, it is characterised in that also including many Hole extrudes eddy flow jet orifice plate, and an end face of porous extruding eddy flow jet orifice plate is close to the setting of fluid issuing end face, described porous Extruding eddy flow jet orifice plate is provided with the eddy flow runner of at least one waist type, and each eddy flow runner is by spirality lateral wall, arc line shaped Connect to be formed with tangential mode transition between madial wall and inlet side wall, the eddy flow center of eddy flow runner or offsettingly open up There is a spray orifice through porous extruding eddy flow jet orifice plate thickness of slab, and the farthest ledge of arc line shaped madial wall exceedes the side of spray orifice Edge.
- 2. porous extruding swirl injection valve according to claim 1, it is characterised in that the shape of porous extruding eddy flow jet orifice plate Shape is flat bowl-type or disc, and the internal face of porous extruding eddy flow jet orifice plate is fitted with the fluid issuing end face of valve seat.
- 3. porous extruding swirl injection valve according to claim 2, it is characterised in that：Eddy flow runner is in porous extruding eddy flow It is uniformly arranged on the internal face of jet orifice plate.
- 4. porous extruding swirl injection valve according to claim 1, it is characterised in that the eddy flow runner of waist type is squeezed porous Pressure eddy flow jet orifice plate is radially extended, and inlet end face region connects to form at least one separate feed liquor with valve opening Mouthful.
- 5. porous extruding swirl injection valve according to claim 4, it is characterised in that when porous extruding swirl injection valve work When making, sealed steel ball flows into valve opening sprue in leaving sealing surface, gap of the fluid from sealed steel ball with valve seat and then enters phase In corresponding eddy flow runner.
- 6. porous extruding swirl injection valve according to claim 1, it is characterised in that the spirality lateral wall of eddy flow runner It is extended in the way of describing logatithmic spiral, gold helical or involute.
- 7. porous extruding swirl injection valve according to claim 1, it is characterised in that the axis of spray orifice revolves with porous extruding Flow the diameter parallel or angle at an acute angle of jet orifice plate.
- 8. porous extruding swirl injection valve according to claim 1, it is characterised in that outside porous extruding eddy flow jet orifice plate At least one locating notch is offered on circumference.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201611158049.5A CN106948909A (en) | 2016-12-15 | 2016-12-15 | A kind of porous extruding swirl injection valve |
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| CN201611158049.5A CN106948909A (en) | 2016-12-15 | 2016-12-15 | A kind of porous extruding swirl injection valve |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109989807A (en) * | 2019-03-20 | 2019-07-09 | 柳州源创电喷技术有限公司 | Urea liquid atomization solenoid valve type metering injector |
| CN110185566A (en) * | 2019-06-20 | 2019-08-30 | 江苏巴腾科技有限公司 | A kind of spiral-flow type jet orifice plate and nozzle |
| CN110359987A (en) * | 2019-08-26 | 2019-10-22 | 昆山瑞泽汽车部件有限公司 | A kind of nozzle of the valve seat with eddy flow slot |
| CN110953044A (en) * | 2018-09-27 | 2020-04-03 | 昆山瑞泽汽车部件有限公司 | Porous urea nozzle and atomization structure thereof |
| CN111535908A (en) * | 2020-05-29 | 2020-08-14 | 凯龙高科技股份有限公司 | Urea solution atomizer and urea solution injection apparatus |
| US10774718B2 (en) | 2018-10-31 | 2020-09-15 | Caterpillar Inc. | Multi-nozzle design to eliminate downstream mixing devices |
| CN113565606A (en) * | 2021-08-31 | 2021-10-29 | 慈溪市汽车配件有限公司 | Three-way catalyst for treating automobile exhaust |
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| CN110953044A (en) * | 2018-09-27 | 2020-04-03 | 昆山瑞泽汽车部件有限公司 | Porous urea nozzle and atomization structure thereof |
| US10774718B2 (en) | 2018-10-31 | 2020-09-15 | Caterpillar Inc. | Multi-nozzle design to eliminate downstream mixing devices |
| CN109989807A (en) * | 2019-03-20 | 2019-07-09 | 柳州源创电喷技术有限公司 | Urea liquid atomization solenoid valve type metering injector |
| CN110185566A (en) * | 2019-06-20 | 2019-08-30 | 江苏巴腾科技有限公司 | A kind of spiral-flow type jet orifice plate and nozzle |
| CN110359987A (en) * | 2019-08-26 | 2019-10-22 | 昆山瑞泽汽车部件有限公司 | A kind of nozzle of the valve seat with eddy flow slot |
| CN111535908A (en) * | 2020-05-29 | 2020-08-14 | 凯龙高科技股份有限公司 | Urea solution atomizer and urea solution injection apparatus |
| CN113565606A (en) * | 2021-08-31 | 2021-10-29 | 慈溪市汽车配件有限公司 | Three-way catalyst for treating automobile exhaust |
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Application publication date: 20170714 |