CN206816921U - A kind of outer guiding fuel gas injection valve of through type mixed admission - Google Patents
A kind of outer guiding fuel gas injection valve of through type mixed admission Download PDFInfo
- Publication number
- CN206816921U CN206816921U CN201720760810.6U CN201720760810U CN206816921U CN 206816921 U CN206816921 U CN 206816921U CN 201720760810 U CN201720760810 U CN 201720760810U CN 206816921 U CN206816921 U CN 206816921U
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- China
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- valve
- valve element
- fuel gas
- gas injection
- armature
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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
- Y02T10/30—Use of alternative fuels, e.g. biofuels
Abstract
The purpose of this utility model is the outer guiding fuel gas injection valve for providing a kind of through type mixed admission, by way of electromagnet is powered and attracts armature so that valve element assembly is lifted off a seat motion under the outer guide effect of guide pad, realizes the function of gas valve jet；Using straight-through plenum system, ensure the sufficient supply of combustion gas entered in valve body；The outer perpendicularity for being oriented to, ensureing valve element is realized by guide block structure；It is engaged by pressure compensation opening, relief groove and pressure stabilizing cavity, can effectively suppresses the fluctuation of gaseous-pressure inside fuel gas injection valve, realize the steady operation of air-flow, reliably working, realize high response speed；By the axially mixed admission mode of the main direct air inlet of air drain and circumferential tonifying Qi gas inlet hole, big flow is realized, effectively improves the supply efficiency of engine, while air-flow can be avoided to interfere, realize the stabilization of gas circuit；By valve element and the multiple tracks zonary structure of valve base chamber, the face sealing of fuel gas injection valve, high reliability are realized.
Description
Technical field
The utility model relates to a kind of fuel gas injection valve, specifically natural gas engine gas injection valve.
Background technology
In recent years, with the rapid growth that China's oil consumes, oil heavy dependence import.Combustion of natural gas clean and
In China's rich reserves, the fuel of most possible diesel oil substitute is become.In internal combustion engine industry, energy-saving and emission-reduction are as internal combustion
Machine development inexorable trend, using natural gas as main fuel internal combustion engine on the premise of dynamic property is ensured, can significantly drop
Low emission pollution condition, already turn into the study hotspot in industry in recent years using the internal combustion engine that natural gas is fuel.As day
The fuel supply system of right gas engine, the performance of fuel gas injection valve directly determine the characteristic of natural gas engine.At present,
In the practical work process of fuel gas injection valve, according to the difference of internal-combustion engine rotational speed, the response time of fuel gas injection valve typically exists
Several milliseconds between a few tens of milliseconds, i.e., fuel gas injection valve need to possess high response speed to meet its requirement switched rapidly, with
This simultaneously, fuel gas injection valve also needs to possess as far as possible big outlet cross-section area, to ensure that internal combustion engine obtains sufficient gas quantity, this
Outside, spray the characteristics such as stability and the control accuracy of gaseous-pressure when fuel gas injection valve works can cause shadow to engine performance
Ring.Therefore, the big flow fuel gas injection valve that Development response speed is fast, stable gas pressure, control accuracy are high, reliability is high, is current
The trend of natural gas engine gas injection valve development.
The content of the invention
The purpose of this utility model is to provide fast response time, control accuracy height, reliability height, stable gas pressure, efficiently
Sealing, a kind of outer guiding fuel gas injection valve of through type mixed admission of big flow.
What the purpose of this utility model was realized in：
A kind of outer guiding fuel gas injection valve of through type mixed admission of the utility model, it is characterized in that：Including valve body, valve
Seat, electromagnet, valve element assembly, valve seat are fixed on below valve body and valve space are formed between valve body, and electromagnet is located at valve sky
Between in and fix with valve body upper end, wound around coil in electromagnet, valve element assembly is located in valve space and is arranged under electromagnet
Side, described valve element assembly include armature, spring base, bottom plate, valve element, and armature, bottom plate, valve element are arranged while led to from top to bottom
Cross fastening bolt to link together, spring base is located at outside armature and forms annular groove between armature, sets inside electromagnet
Annular groove, the both ends of back-moving spring are arranged in the annular groove of electromagnet and the annular groove of spring base, and armature is set at center
Pressure compensation opening is put, relief groove is set on bottom plate, valve element is hollow structure, and center voltage stabilizing is set on the valve seat below valve element
Chamber, pressure compensation opening, relief groove, the hollow space of valve element and center pressure stabilizing cavity communicate and form inner space, valve element
Upper setting seal band and fin, seal band form ring cavity, set outlet annulus and guide pad, guide pad to be located at valve on valve seat
Around core, outlet annulus is located at below ring cavity, and gas outlet is set below outlet annulus, and valve element upper surface opens up axially main air drain,
Circumferential tonifying Qi hole is provided with fin, and diversion angle of cone is set at tonifying Qi hole.
The utility model can also include：
1st, the outer end of valve seat sets end pressure stabilizing cavity.
2nd, air inlet is formed between the top of electromagnet and valve body, air inlet is formed between the middle and lower part of electromagnet and valve body
Chamber, diversion cavity is formed between valve element assembly and valve body, air inlet, inlet chamber, diversion cavity communicate and form exterior space, outside
Space communicates with inner space；
Combustion gas vertically flows into inlet chamber through air inlet, and exterior space and inside full of valve inner are flowed into along diversion cavity
Space, a portion are flowed into the pressure stabilizing cavity of center by pressure compensation opening, and end pressure stabilizing cavity is connected with diversion cavity；
In the fuel gas injection valve course of work, when coil is not powered on, under the pretightning force effect of back-moving spring, on valve element
The upper surface of seal band and valve seat is fitted close, and the exterior space of valve inner of the combustion gas full of fuel gas injection valve and inside are empty
Between；After coil electricity, armature is acted on by upward electromagnetic force, and valve element assembly is after the pretightning force of back-moving spring is overcome to upper
Motion, valve element are separated with valve base surface, and fuel gas injection valve is opened, and gas circuit is opened, and combustion gas is by axially main air drain and circumferential tonifying Qi hole
Mixed admission mode flow into, by ring cavity, finally vertically flowed out by gas outlet；After coil blackout, electromagnet and armature it
Between back-moving spring pretightning force effect under, armature moves downward, and valve element assembly is overall under the outer guide effect of guide pad
Move downward, until spool face is bonded with valve base surface, come back to initial position, fuel gas injection valve is closed, and gas circuit is closed.
Advantage of the present utility model is：The utility model is powered electromagnet by way of attraction armature so that valve element
Assembly is lifted off a seat motion under the outer guide effect of guide pad, realizes the function of gas valve jet；The utility model uses
Straight-through plenum system, ensure the sufficient supply of combustion gas entered in valve body；Pass through pressure compensation opening, relief groove and voltage stabilizing
Chamber is engaged, and can effectively suppress the fluctuation of gaseous-pressure inside fuel gas injection valve, realizes the steady operation of air-flow, reliable work
Make, realize high response speed；By the axially mixed admission mode of the main direct air inlet of air drain and circumferential tonifying Qi gas inlet hole, realize big
Flow, effectively improves the supply efficiency of engine, while air-flow can be avoided to interfere, and realizes the stabilization of gas circuit；Pass through valve element
With the multiple tracks zonary structure of valve base chamber, the face sealing of fuel gas injection valve, high reliability are realized.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model；
Fig. 2 is valve element composite unit structure schematic diagram of the present utility model；
Fig. 3 is that gas circuit of the present utility model moves towards schematic diagram；
Fig. 4 is valve element three dimensional structure diagram；
Fig. 5 is valve seat construction top view.
Embodiment
Illustrate below in conjunction with the accompanying drawings and the utility model is described in more detail：
With reference to Fig. 1-5, Fig. 1 is that the overall structure of the outer guiding fuel gas injection valve of the utility model through type mixed admission is shown
It is intended to, including 1 valve body, 2 electromagnet, 3 coils, 4 back-moving springs, 5 valve element assemblys and 9 valve seats.Electromagnet 2 is by above it
Screw thread is linked together with valve body 1, it is fixed on the center of the top of valve body 1, and coil 3 is wrapped in inside electromagnet 2
In annular groove, valve element assembly 5, valve seat 9 it have been sequentially arranged from top to bottom below electromagnet 2, have passed through between valve seat 9 and valve body 1
Bolt is fixed together, and mating surface therebetween is sealed by O-ring seal 8 to realize, 4 guide pads on valve seat 9
7 realize the circumferentially fixed of valve element assembly 5, ensure the perpendicularity of valve element assembly 5.
As shown in Fig. 2 a kind of valve element assembly 5 of the outer guiding fuel gas injection valve of through type mixed admission is mainly by armature
10th, spring base 11, fastening bolt 19, pad 17, bottom plate 12 and valve element 13 form, and armature 10 passes through fastening bolt 19 and bottom plate
12nd, valve element 13 is linked together, and one layer of pad 17 is disposed between armature 10 and bottom plate 12, and spring base 11 is arranged on bottom plate 12
Top, its internal side surface are in contact with the side surface of armature 10, and the both ends of back-moving spring 4 are located at electromagnet 2 and bullet respectively
In the annular groove of spring abutment 11, the center of armature 10 is provided with pressure compensation opening 16, and a number of relief groove is provided with bottom plate 12
18, avoid armature 10 from being made airline pressure inside and outside at armature 10 be more easy to reach balance by axial force, improve armature 10 and respond speed
Spend, the pressure compensation opening 16 at the center of armature 10 coordinates the relief groove 18 on bottom plate 12 make it that the inside of valve element assembly 5 is empty
Between connected with exterior space, inside and outside gas circuit reaches balance, and the inside and outside combustion gas no pressure of valve element assembly 5 is poor, avoids from fortune
It is made up of when dynamic by extra axial force, valve element 13 valve element main body, fin 14 and seal band 15.Valve element assembly 5 is overall
It is arranged in the lower section of electromagnet 2.Axially main air drain 28 is opened in the upper surface of valve element 13, and multiple circumferential tonifying Qi holes 24 are opened respectively on fin 14,
And the diversion angle of cone 20 of certain angle is opened at tonifying Qi hole 24.
As shown in figure 3, first, the inlet chamber 22 that combustion gas is vertically flowed into valve body 1 by air inlet 21, flowed along diversion cavity 23
Entering full of inside valve body 1, a portion is flowed at the center of valve seat 9 in pressure stabilizing cavity 25 by the pressure compensation opening 16 of armature 10,
The pressure stabilizing cavity 25 of the center of valve seat 9 is connected with the combustion gas space inside valve element assembly 5, and the voltage stabilizing at the periphery of valve seat 9
Chamber 25 is connected with the diversion cavity 23 in valve body 1.
In the fuel gas injection valve course of work, when coil 3 is not powered on, under the pretightning force effect of back-moving spring 4, valve element group
Zoarium 5 maintains motionless, the lower surface of seal band 15 and the going out for valve seat 9 of the valve element 13 in valve element assembly 5 in initial position
The upper surface of compression ring band 6 is brought into close contact, and now the ring cavity 26 between valve element 13 and valve seat 9 not yet connects, and combustion gas is full of fuel gas injection
Whole space inside the valve body 1 of valve.After coil 3 is powered, electromagnet 2, armature 10 are magnetized, between electromagnet 2 and armature 10
Form magnetic loop, armature 10 moves upwards after act on the pretightning force for overcoming back-moving spring 4 by electromagnetic force, with movable valve plug 13 to
Upper motion separates with the surface of valve seat 9, until the upper surface of spring base 11 is in contact with the lower surface of electromagnet 2, is entirely moved through
Cheng Zhong, armature 10 are axially moved the cooperation between circumferentially positioned 4 guide pads 7 and valve element 13 by valve seat 9 to control
System realizes that now, gas circuit is opened, and magnetic valve is opened, gas being mixed into by axially main air drain 28 and circumferential tonifying Qi hole 24 rapidly
Gas mode flows into, and by multiple tracks ring cavity 26, is finally vertically flowed out by gas outlet 27；Coil 3 powers off, the electromagnetic force that armature 10 is subject to
Disappear, in the presence of the back-moving spring 4 between electromagnet 2 and spring base 11, armature 10 moves downward, and band movable valve plug 13 is downward
Motion, until the surface of valve element 13 is bonded with the surface of valve seat 9, armature 10 returns to initial position, and gas circuit is closed, closed electromagnetic valve.
From the above-mentioned course of work, a kind of outer guiding fuel gas injection valve of through type mixed admission of the utility model passes through
Electromagnet 2, which is powered, attracts the mode of armature 10 so that valve element assembly 5 is lifted off a seat 9 fortune under the outer guide effect of guide pad 7
It is dynamic, realize the function of gas valve jet；The combustion gas that the utility model is entered in valve body 1 using straight-through plenum system, guarantee
Abundance supply；The outer perpendicularity for being oriented to, ensureing valve element 13 is realized by the structure of guide pad 7；By opening pressure at the center of armature 10
Balance pipe 16 is simultaneously provided with a number of relief groove 18 on bottom plate 12, avoids armature 10 from being made armature 10 by axial force
Airline pressure is more easy to reach balance inside and outside place, improves the response speed of armature 10；Multiple circumferential benefits are opened on the fin 14 of valve element 13
The structure of stomata 24, the lower surface of valve element 13 and the upper surface of valve seat 9 are provided with multiple tracks ring cavity 26, increase valid circulation area, reduce valve
The quality of core 13 and valve seat 9, improve reliability；The diversion angle of cone 20 of certain angle is set at the circumferential tonifying Qi hole 24 of valve element 13,
Flow losses are reduced, increase discharge coefficient；The utility model is entered using axially main 28 direct air inlet of air drain and circumferential tonifying Qi hole 24
The mixed admission mode of gas, increase charge flow rate coefficient, realize big flow, be effectively improved the supply effect of fuel gas injection valve
Rate, while air-flow can be avoided to interfere, realize balancing, stably for gas circuit；Multiple-sealed annulus 15 is used between valve element 13 and valve seat 9
With the structure of outlet annulus 6, the face sealing of fuel gas injection valve, voltage stabilizing balance are realized, and wider annulus area can reduce impact,
Improve reliability；Pressure stabilizing cavity 25 is respectively provided with the center of valve seat 9 and peripheral place, can effectively suppress gas pressure inside fuel gas injection valve
The fluctuation of power, the steady operation of air-flow is realized, reliably working, realizes high response speed.
The technical solution of the utility model：A kind of outer guiding fuel gas injection valve of through type mixed admission, it is mainly by valve
Body, electromagnet, coil, back-moving spring, valve element assembly and valve seat composition.Electromagnet is connected by the screw thread above it with valve body
Together, it is made to be fixed on the center above valve body, coil is wrapped in the annular groove inside electromagnet, below electromagnet
Valve element assembly, valve seat have been sequentially arranged from top to bottom, together with valve seat is bolted to connection between valve body, the two it
Between mating surface by O-ring seal come realize sealing；Valve element assembly by armature, spring base, pad, bottom plate, fastening bolt and
Valve element forms, it is characterized in that：Armature is linked together by fastening bolt and bottom plate, valve element, is disposed between armature and bottom plate
One layer of pad, spring base are arranged on the top of bottom plate, and its internal side surface is in contact with the side surface of armature, back-moving spring
Respectively in the annular groove of electromagnet and spring base, armature center is provided with pressure compensation opening, and a fixed number is provided with bottom plate at both ends
The relief groove of amount, valve element are made up of valve element main body, fin, seal band, and valve element assembly integral arrangement is under electromagnet
Side, circumferential tonifying Qi hole is opened on the fin of valve element and diversion angle of cone is set at tonifying Qi hole, using sealing between valve element and valve seat
Annulus and outlet zonary structure, face sealing, voltage stabilizing balance, and there is wider annulus area, valve element is circumferentially fixed in valve seat
On 4 guide pads on, ensure its perpendicularity, valve element moves up and down spacing by the progress of the distance between spring base and electromagnet.
Pressure stabilizing cavity, pressure stabilizing cavity and the combustion gas inside valve element assembly of valve seat center are provided with valve seat center and periphery
Space is connected, and the pressure stabilizing cavity at valve seat periphery is connected with the diversion cavity in valve body.
Claims (3)
1. a kind of outer guiding fuel gas injection valve of through type mixed admission, it is characterized in that：Including valve body, valve seat, electromagnet, valve element
Assembly, valve seat are fixed on below valve body and valve space are formed between valve body, electromagnet be located in valve space and with valve body
End is fixed, wound around coil in electromagnet, and valve element assembly is located in valve space and is arranged on below electromagnet, described valve element group
Zoarium includes armature, spring base, bottom plate, valve element, and armature, bottom plate, valve element are arranged while connected by fastening bolt from top to bottom
Together, spring base is located at outside armature and annular groove is formed between armature, and annular groove, back-moving spring are set inside electromagnet
Both ends be arranged in the annular groove of electromagnet and the annular groove of spring base, at armature center set pressure compensation opening, bottom
Relief groove is set on plate, valve element is hollow structure, sets center pressure stabilizing cavity on the valve seat below valve element, pressure compensation opening,
Relief groove, the hollow space of valve element and center pressure stabilizing cavity are communicated and form inner space, and seal band is set on valve element
And fin, seal band form ring cavity, set outlet annulus and guide pad, guide pad to be located at around valve element on valve seat, go out compression ring
Band sets gas outlet below ring cavity below outlet annulus, valve element upper surface opens up axially main air drain, circumference is provided with fin
Tonifying Qi hole, and diversion angle of cone is set at tonifying Qi hole.
2. a kind of outer guiding fuel gas injection valve of through type mixed admission according to claim 1, it is characterized in that：Valve seat
Outer end sets end pressure stabilizing cavity.
3. a kind of outer guiding fuel gas injection valve of through type mixed admission according to claim 1 or 2, it is characterized in that：Electricity
Air inlet is formed between the top of magnet and valve body, inlet chamber, valve element assembly are formed between the middle and lower part of electromagnet and valve body
Diversion cavity is formed between valve body, air inlet, inlet chamber, diversion cavity communicate and form exterior space, and exterior space is empty with inside
Between communicate；
Combustion gas vertically flows into inlet chamber through air inlet, and exterior space and inside sky full of valve inner are flowed into along diversion cavity
Between, a portion is flowed into the pressure stabilizing cavity of center by pressure compensation opening, and end pressure stabilizing cavity is connected with diversion cavity；
In the fuel gas injection valve course of work, when coil is not powered on, under the pretightning force effect of back-moving spring, the sealing on valve element
The upper surface of annulus and valve seat is fitted close, the exterior space of valve inner of the combustion gas full of fuel gas injection valve and inner space；
After coil electricity, armature is acted on by upward electromagnetic force, and valve element assembly is after the pretightning force of back-moving spring is overcome to upper fortune
Dynamic, valve element is separated with valve base surface, and fuel gas injection valve is opened, and gas circuit is opened, and combustion gas is by axial main air drain and circumferential tonifying Qi hole
Mixed admission mode flows into, and by ring cavity, is finally vertically flowed out by gas outlet；After coil blackout, between electromagnet and armature
Back-moving spring pretightning force effect under, armature moves downward, valve element assembly under the outer guide effect of guide pad integrally to
Lower motion, until spool face is bonded with valve base surface, initial position is come back to, fuel gas injection valve is closed, and gas circuit is closed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720760810.6U CN206816921U (en) | 2017-06-28 | 2017-06-28 | A kind of outer guiding fuel gas injection valve of through type mixed admission |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720760810.6U CN206816921U (en) | 2017-06-28 | 2017-06-28 | A kind of outer guiding fuel gas injection valve of through type mixed admission |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206816921U true CN206816921U (en) | 2017-12-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720760810.6U Withdrawn - After Issue CN206816921U (en) | 2017-06-28 | 2017-06-28 | A kind of outer guiding fuel gas injection valve of through type mixed admission |
Country Status (1)
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|---|---|
| CN (1) | CN206816921U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107091360A (en) * | 2017-06-28 | 2017-08-25 | 哈尔滨工程大学 | A kind of outer guiding fuel gas injection valve of through type mixed admission |
-
2017
- 2017-06-28 CN CN201720760810.6U patent/CN206816921U/en not_active Withdrawn - After Issue
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107091360A (en) * | 2017-06-28 | 2017-08-25 | 哈尔滨工程大学 | A kind of outer guiding fuel gas injection valve of through type mixed admission |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20171229 Effective date of abandoning: 20230530 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20171229 Effective date of abandoning: 20230530 |