CN206903772U - A kind of outer guiding fuel gas injection valve of bypass type mixed admission - Google Patents
A kind of outer guiding fuel gas injection valve of bypass type mixed admission Download PDFInfo
- Publication number
- CN206903772U CN206903772U CN201720760775.8U CN201720760775U CN206903772U CN 206903772 U CN206903772 U CN 206903772U CN 201720760775 U CN201720760775 U CN 201720760775U CN 206903772 U CN206903772 U CN 206903772U
- Authority
- CN
- China
- Prior art keywords
- valve
- valve element
- fuel gas
- gas injection
- armature
- 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.)
- Withdrawn - After Issue
Links
Classifications
-
- 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 bypass type mixed admission, and air inlet and water conservancy diversion process are realized by by-pass structure and water conservancy diversion cavity configuration；The control of valve element is realized by the control of actuator, the control of gas circuit, realizes the function of gas valve jet；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 bypass 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 bypass type mixed admission of the utility model, it is characterized in that：Including valve body, valve
Seat, electromagnet, valve element assembly, electromagnet are arranged on valve body, and valve body is arranged on valve seat, electromagnet, valve body and valve seat
Between form valve space, wound around coil in electromagnet, valve element assembly be located in valve space and is arranged on electromagnet lower section, described
Valve element assembly include armature, spring base, bottom plate, valve element, armature, bottom plate, valve element are arranged while pass through fastening from top to bottom
It is bolted together, spring base is located at outside armature and annular groove is formed between armature, and annular groove is set inside electromagnet,
The both ends of back-moving spring are arranged in the annular groove of electromagnet and the annular groove of spring base, set pressure to put down at armature center
Weigh hole, relief groove is set on bottom plate, valve element is hollow structure, and center pressure stabilizing cavity, pressure are set on the valve seat below valve element
Balance pipe, relief groove, the hollow space of valve element and center pressure stabilizing cavity communicate and form inner space, are set on valve element close
Seal ring band 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,
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, opened on fin
There is circumferential tonifying Qi hole, 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.
The 2nd, air inlet is set on valve body, diversion cavity is set in the valve body below air inlet, air inlet, diversion cavity communicate and structure
Into exterior space, exterior space communicates with inner space；
Combustion gas vertically flows into diversion cavity 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 realizes air inlet and water conservancy diversion by by-pass structure and water conservancy diversion cavity configuration
Process；The control of valve element is realized by the control of actuator, the control of gas circuit, realizes the function of gas valve jet；Pass through guiding
Block structure realizes the outer perpendicularity for being oriented to, ensureing valve element；It is engaged by pressure compensation opening, relief groove and pressure stabilizing cavity, energy
Enough fluctuations for effectively suppressing gaseous-pressure inside fuel gas injection valve, the steady operation of air-flow is realized, reliably working, realizes 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, is effectively carried
The supply efficiency of high engine, while air-flow can be avoided to interfere, realize the stabilization of gas circuit；Pass through the multiple tracks of valve element and valve base chamber
Zonary structure, realize the face sealing of fuel gas injection valve, high reliability.
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 bypass type mixed admission is shown
It is intended to, including 1 electromagnet, 2 coils, 3 back-moving springs, 4 valve element assemblys, 6 valve bodies and 7 valve seats.Electromagnet 1 passes through fixing bolt
8 are fixed on valve body 6, and coil 2 is wrapped in the annular groove inside electromagnet 1, has been sequentially arranged from top to bottom below electromagnet 1
Valve element assembly 4, valve seat 7, together with valve seat 7 is bolted to connection between valve body 6, mating surface therebetween passes through
O-ring seal 12 seals to realize, 4 guide pads 11 on valve seat 7 realize the circumferentially fixed of valve element assembly 4, ensures valve element group
The perpendicularity of zoarium 4.
As shown in Fig. 2 a kind of valve element assembly 4 of the outer guiding fuel gas injection valve of bypass type mixed admission is mainly by armature
13rd, spring base 14, fastening bolt 22, pad 20, bottom plate 15 and valve element 16 form, and armature 13 passes through fastening bolt 22 and bottom plate
15th, valve element 16 is linked together, and one layer of pad 20 is disposed between armature 13 and bottom plate 15, and spring base 14 is arranged on bottom plate 15
Top, its internal side surface are in contact with the side surface of armature 13, and the both ends of back-moving spring 3 are located at electromagnet 1 and bullet respectively
In the annular groove of spring abutment 14, the center of armature 13 is provided with pressure compensation opening 19, and a number of relief groove is provided with bottom plate 15
21, avoid armature 13 from being made airline pressure inside and outside at armature 13 be more easy to reach balance by axial force, improve armature 13 and respond speed
Spend, the pressure compensation opening 19 at the center of armature 13 coordinates the relief groove 21 on bottom plate 15 make it that the inside of valve element assembly 4 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 4 is poor, avoids from fortune
It is made up of when dynamic by extra axial force, valve element 16 valve element main body, fin 17 and seal band 18.Open axle in the upper surface of valve element 16
To main air drain 30, multiple circumferential tonifying Qi holes 26 are opened on fin 17 respectively, and the diversion angle of cone of certain angle is opened at tonifying Qi hole 26
23.The integral arrangement of valve element assembly 4 is below electromagnet 1.
As shown in figure 3, first, combustion gas is vertically flowed into valve body 6 by air inlet 24, flowed into along diversion cavity 25 and be full of valve body
Inside 6, a portion is flowed at the center of valve seat 7 in pressure stabilizing cavity 27 by the pressure compensation opening 19 of armature 13, the centre bit of valve seat 7
The pressure stabilizing cavity 27 put is connected with the combustion gas space inside valve element assembly 4.
In the fuel gas injection valve course of work, when coil 2 is not powered on, under the pretightning force effect of back-moving spring 3, valve element group
Zoarium 4 maintains motionless, the lower surface of seal band 18 and the going out for valve seat 7 of the valve element 16 in valve element assembly 4 in initial position
The upper surface of compression ring band 10 is brought into close contact, and now the ring cavity 28 between valve element 16 and valve seat 7 not yet connects, and combustion gas is full of fuel gas injection
Whole space inside the valve body 6 of valve.After coil 2 is powered, electromagnet 1, armature 13 are magnetized, between electromagnet 1 and armature 13
Form magnetic loop, armature 13 moves upwards after act on the pretightning force for overcoming back-moving spring 3 by electromagnetic force, with movable valve plug 16 to
Upper motion separates with the surface of valve seat 7, until the upper surface of spring base 14 is in contact with the lower surface of electromagnet 1, is entirely moved through
Cheng Zhong, armature 13 are axially moved the cooperation between circumferentially positioned 4 guide pads 11 and valve element 16 by valve seat 7 to control
System realizes that now, gas circuit is opened, and magnetic valve is opened, gas being mixed into by axially main air drain 30 and circumferential tonifying Qi hole 26 rapidly
Gas mode flows into, and by multiple tracks ring cavity 28, is finally vertically flowed out by gas outlet 29；Coil 2 powers off, the electromagnetic force that armature 13 is subject to
Disappear, in the presence of the back-moving spring 3 between electromagnet 1 and spring base 14, armature 13 moves downward, and band movable valve plug 16 is downward
Motion, until the surface of valve element 16 is bonded with the surface of valve seat 7, armature 13 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 bypass type mixed admission of the utility model passes through
By-pass structure and the structure of diversion cavity 25 realize air inlet and water conservancy diversion process；The control of valve element 16, gas are realized by the control of actuator
The control on road, realizes air injection function；The outer perpendicularity for being oriented to, ensureing valve element 16 is realized by the structure of guide pad 11；By holding in the mouth
The center of iron 13 opens pressure compensation opening 19 and a number of relief groove 21 is provided with bottom plate 15, avoids armature 13 by axle
Xiang Li, make airline pressure inside and outside at armature 13 be more easy to reach balance, improve the response speed of armature 13；On the fin 17 of valve element 16
The structure in multiple circumferential tonifying Qi holes 26 is opened, the lower surface of valve element 16 and the upper surface of valve seat 7 are provided with multiple tracks ring cavity 28, increase effectively circulation
Area, the quality of valve element 16 and valve seat 7 is reduced, improve reliability；Certain angle is set at the circumferential tonifying Qi hole 26 of valve element 16
Diversion angle of cone 23, flow losses are reduced, increase discharge coefficient；The utility model is using axially main 30 direct air inlet of air drain and circumference
The mixed admission mode of the air inlet of tonifying Qi hole 26, increase charge flow rate coefficient, realize big flow, be effectively improved fuel gas injection valve
Supply efficiency, while air-flow can be avoided to interfere, realize balancing, stably for gas circuit；It is close using multiple tracks between valve element 16 and valve seat 7
Seal ring band 18 and the structure of outlet annulus 10, the face sealing of fuel gas injection valve, voltage stabilizing balance are realized, and wider annulus area can
Impact is reduced, improves reliability；Pressure stabilizing cavity 27 is set at the center of valve seat 7, can effectively suppress combustion gas inside fuel gas injection valve
The fluctuation of pressure can make ventilation uniform, realize the steady operation of air-flow, reliably working, realize high response speed.
The technical solution of the utility model：A kind of outer guiding fuel gas injection valve of bypass type mixed admission, it is mainly by electricity
Magnet, coil, back-moving spring, valve element assembly, valve body and valve seat composition.Electromagnet is fixed on valve body by fixing bolt,
Coil is wrapped in the annular groove inside electromagnet, has been sequentially arranged valve element assembly, valve seat, valve from top to bottom below electromagnet
Together with seat is bolted to connection between valve body, mating surface therebetween realizes sealing by O-ring seal；Valve
Core assembly is made up of armature, spring base, pad, bottom plate, fastening bolt and valve element, it is characterized in that：Armature passes through fastening bolt
Being linked together with bottom plate, valve element, one layer of pad is disposed between armature and bottom plate, spring base is arranged on the top of bottom plate, its
Internal side surface is in contact with the side surface of armature, and the both ends of back-moving spring are respectively positioned at electromagnet and the annular groove of spring base
Interior, armature center is provided with pressure compensation opening, a number of relief groove is provided with bottom plate, valve element is by valve element main body, fin
With seal band form, valve element assembly integral arrangement below electromagnet, opened on the fin of valve element circumferential tonifying Qi hole and
Diversion angle of cone is set at tonifying Qi hole, seal band and outlet zonary structure, face sealing are used between valve element and valve seat, voltage stabilizing is put down
Weighing apparatus, and there is wider annulus area, on circumferentially fixed 4 guide pads on valve seat of valve element, ensure its perpendicularity, valve element
Move up and down spacing by the progress of the distance between spring base and electromagnet.Pressure stabilizing cavity, valve seat center are provided with valve seat center
The pressure stabilizing cavity of position is connected with the combustion gas space inside valve element assembly.
Claims (3)
1. a kind of outer guiding fuel gas injection valve of bypass type mixed admission, it is characterized in that：Including valve body, valve seat, electromagnet, valve element
Assembly, electromagnet are arranged on valve body, and valve body is arranged on valve seat, and valve space is formed between electromagnet, valve body and valve seat,
Wound around coil in electromagnet, valve element assembly are located in valve space and are arranged on below electromagnet, described valve element assembly bag
Armature, spring base, bottom plate, valve element are included, armature, bottom plate, valve element are arranged while linked together by fastening bolt from top to bottom,
Spring base is located at outside armature and annular groove is formed between armature, and annular groove, the both ends of back-moving spring are set inside electromagnet
It is arranged in the annular groove of electromagnet and the annular groove of spring base, pressure compensation opening is set at armature center, set on bottom plate
Put relief groove, valve element is hollow structure, sets center pressure stabilizing cavity on the valve seat below valve element, pressure compensation opening, pressure are put down
Weighing apparatus groove, the hollow space of valve element and center pressure stabilizing cavity are communicated and form inner space, and seal band and fin are set on valve element,
Seal band forms ring cavity, sets outlet annulus and guide pad, guide pad to be located at around valve element on valve seat, outlet annulus is located at ring
Below chamber, gas outlet is set below outlet annulus, 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.
2. a kind of outer guiding fuel gas injection valve of bypass 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 bypass type mixed admission according to claim 1 or 2, it is characterized in that：Valve
Extension is set on body, and extension sets air inlet, and diversion cavity, air inlet, water conservancy diversion are set in the valve body below air inlet
Chamber communicates and forms exterior space, and exterior space communicates with inner space；
Combustion gas vertically flows into diversion cavity 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 |
|---|---|---|---|
| CN201720760775.8U CN206903772U (en) | 2017-06-28 | 2017-06-28 | A kind of outer guiding fuel gas injection valve of bypass type mixed admission |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720760775.8U CN206903772U (en) | 2017-06-28 | 2017-06-28 | A kind of outer guiding fuel gas injection valve of bypass type mixed admission |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206903772U true CN206903772U (en) | 2018-01-19 |
Family
ID=61291744
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720760775.8U Withdrawn - After Issue CN206903772U (en) | 2017-06-28 | 2017-06-28 | A kind of outer guiding fuel gas injection valve of bypass type mixed admission |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206903772U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107061059A (en) * | 2017-06-28 | 2017-08-18 | 哈尔滨工程大学 | A kind of outer guiding fuel gas injection valve of bypass type mixed admission |
-
2017
- 2017-06-28 CN CN201720760775.8U patent/CN206903772U/en not_active Withdrawn - After Issue
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107061059A (en) * | 2017-06-28 | 2017-08-18 | 哈尔滨工程大学 | A kind of outer guiding fuel gas injection valve of bypass type mixed admission |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN206816410U (en) | A kind of outer guiding fuel gas injection valve of through type axial admission | |
| CN206903772U (en) | A kind of outer guiding fuel gas injection valve of bypass type mixed admission | |
| CN107420228A (en) | A kind of outer guiding fuel gas injection valve of bypass type axial admission | |
| CN206816387U (en) | A kind of double electromagnetism fuel gas injection valves of combined type | |
| CN206903773U (en) | A kind of interior guiding fuel gas injection valve of bypass type mixed admission | |
| CN206816921U (en) | A kind of outer guiding fuel gas injection valve of through type mixed admission | |
| CN206918368U (en) | A kind of interior guiding fuel gas injection valve of through type mixed admission | |
| CN107143436A (en) | A kind of double electromagnetism fuel gas injection valves of combined type | |
| CN206816386U (en) | A kind of double electromagnetism fuel gas injection valves of adjustable actual internal area coaxial-type | |
| CN107091354A (en) | Fuel gas injection valve is oriented in a kind of piezoelectric type of through type axial admission | |
| CN206816409U (en) | A kind of outer guiding fuel gas injection valve of bypass type axial admission | |
| CN206816408U (en) | A kind of interior guiding fuel gas injection valve of bypass type axial admission | |
| CN107091359A (en) | A kind of interior guiding fuel gas injection valve of through type mixed admission | |
| CN107061059A (en) | A kind of outer guiding fuel gas injection valve of bypass type mixed admission | |
| CN206846047U (en) | A kind of block form fuel gas injection valve with floating valve seat | |
| CN206816396U (en) | Fuel gas injection valve is oriented to outside a kind of piezoelectric type of bypass type mixed admission | |
| CN107420227A (en) | A kind of interior guiding fuel gas injection valve of bypass type with floating valve seat | |
| CN107061058A (en) | A kind of interior guiding fuel gas injection valve of bypass type mixed admission | |
| CN206816398U (en) | A kind of outer guiding fuel gas injection valve of bypass type with floating valve seat | |
| CN107091360A (en) | A kind of outer guiding fuel gas injection valve of through type mixed admission | |
| CN206816401U (en) | Fuel gas injection valve is oriented to outside a kind of piezoelectric type of through type mixed admission | |
| CN206816399U (en) | Fuel gas injection valve is oriented in a kind of piezoelectric type of bypass type mixed admission | |
| CN211598890U (en) | Proportional flow valve for high-pressure common rail pump of medium-heavy diesel engine | |
| CN206816397U (en) | Fuel gas injection valve is oriented in a kind of piezoelectric type of through type mixed admission | |
| CN206816395U (en) | A kind of interior guiding fuel gas injection valve of bypass type with floating valve seat |
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: 20180119 Effective date of abandoning: 20230609 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20180119 Effective date of abandoning: 20230609 |