CN206903773U - A kind of interior guiding fuel gas injection valve of bypass type mixed admission - Google Patents
A kind of interior guiding fuel gas injection valve of bypass type mixed admission Download PDFInfo
- Publication number
- CN206903773U CN206903773U CN201720769282.0U CN201720769282U CN206903773U CN 206903773 U CN206903773 U CN 206903773U CN 201720769282 U CN201720769282 U CN 201720769282U CN 206903773 U CN206903773 U CN 206903773U
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- valve
- valve element
- electromagnet
- fuel gas
- gas injection
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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
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- Magnetically Actuated Valves (AREA)
Abstract
The purpose of this utility model is the interior 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；It is engaged by interior guide frame with pressure compensation opening, relief groove and pressure stabilizing cavity, ensures the perpendicularity of valve element, 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 interior 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 interior 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, guide finger, armature, bottom plate, valve element arrange from top to bottom simultaneously lead to
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 master reset spring are arranged in the annular groove of electromagnet and the annular groove of spring base, at armature center
Guide finger is installed, guide finger is stretched in electromagnet, auxiliary back-moving spring is set in electromagnet, the both ends of auxiliary back-moving spring connect respectively
Electric shock magnet and guide finger, pressure compensation opening being set in guide finger, relief groove is set on bottom plate, valve element is hollow structure,
Center pressure stabilizing cavity is set on the valve seat below valve element, and pressure compensation opening, relief groove, the hollow space of valve element and center are steady
Pressure chamber is communicated and forms inner space, and seal band is set on valve element, and seal band forms ring cavity, compression ring is set out on valve seat
Band, outlet annulus are located at below ring cavity, and gas outlet is set below outlet annulus, and valve element upper surface opens up axially main air drain, fin
On be provided with 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, extension is set on valve body, extension sets air inlet, and diversion cavity is set in the valve body below air inlet,
Air inlet, diversion cavity communicate and form exterior space, and 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, in the pretightning force of master reset spring and auxiliary back-moving spring
Under effect, the upper surface of seal band and valve seat on valve element is fitted close, valve inner of the combustion gas full of fuel gas injection valve
Exterior space and inner space；After coil electricity, armature is acted on by upward electromagnetic force, and valve element assembly is overcoming master reset
Spring, auxiliary back-moving spring pretightning force after move upwards, valve element separates with valve base surface, fuel gas injection valve open, gas circuit open,
Combustion gas is flowed into by the axially mixed admission mode in main air drain and circumferential tonifying Qi hole, by ring cavity, is finally vertically flowed out by gas outlet；
After coil blackout, under the effect of the pretightning force of master reset spring and auxiliary back-moving spring, armature moves downward, and valve element assembly is overall
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；Led by interior
It is engaged to structure with pressure compensation opening, relief groove and pressure stabilizing cavity, ensures the perpendicularity of valve element, can effectively suppress combustion gas
The fluctuation of gaseous-pressure, realizes the steady operation of air-flow, reliably working, realizes high response speed inside injection valve；Pass through axial direction
The main direct air inlet of air drain and the mixed admission mode of circumferential tonifying Qi gas inlet hole, realize big flow, effectively improve the confession of engine
Gas efficiency, while air-flow can be avoided to interfere, realize the stabilization of gas circuit；It is real by valve element and the multiple tracks zonary structure of valve base chamber
The face sealing of existing 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 interior 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 master reset springs, 4 auxiliary back-moving springs, 5 valve element assemblys, 7 valve bodies and 8 valve seats.Electromagnetism
Iron 1 is fixed on valve body 7 by fixing bolt 9, and coil 2 is wrapped in the annular groove inside electromagnet 1, below electromagnet 1 certainly
It is upper and under be sequentially arranged valve element assembly 5, valve seat 8, together with valve seat 8 is bolted to connection between valve body 7, the two
Between mating surface by O-ring seal 12 come realize sealing.
As shown in Fig. 2 a kind of valve element assembly 5 of the interior guiding fuel gas injection valve of bypass type mixed admission is mainly by being oriented to
Pin 13, jump ring 21, armature 14, spring base 15, fastening bolt 24, pad 22, bottom plate 16 and valve element 17 form, and armature 14 is by tight
Fixing bolt 24 is linked together with bottom plate 16, valve element 17, and one layer of pad 22, spring base 15 are disposed between armature 14 and bottom plate 16
Installed in the top of bottom plate 16, its internal side surface is in contact with the side surface of armature 14, the both ends difference of master reset spring 3
In the annular groove of electromagnet 1 and spring base 15, the center of electromagnet 1 is provided with the straight trough of certain depth, electromagnet 1 and armature 14
Between guide finger 13 be arranged in inside straight trough, the center of guide finger 13 is provided with pressure compensation opening 20, and a fixed number is provided with bottom plate 16
The relief groove 23 of amount, armature 14 is avoided to be made airline pressure inside and outside at armature 14 be more easy to reach balance by axial force, improve
The response speed of armature 14, auxiliary back-moving spring 4 is disposed between the top of guide finger 13 and electromagnet 1, is arranged in the center of armature 14
Position, it is directed to pin 13 using jump ring 21 and is fixed up with armature 14.Pressure compensation opening 20 at the center of guide finger 13 coordinates bottom
Relief groove 23 on plate 16 causes the inner space of valve element assembly 5 to be connected with exterior space, and inside and outside gas circuit reaches balance, valve
The inside and outside combustion gas no pressure of core assembly 5 is poor, and by extra axial force when avoiding from motion, valve element 17 is by valve element master
Body, fin 18 and seal band 19 form.The integral arrangement of valve element assembly 5 is below electromagnet 1.
As shown in figure 3, first, combustion gas is vertically flowed into valve body 7 by air inlet 26, flowed into along diversion cavity 27 and be full of valve body
Inside 7, a portion is flowed at the center of valve seat 8 in pressure stabilizing cavity 29 by the pressure compensation opening 20 of guide finger 13, the center of valve seat 8
The pressure stabilizing cavity 29 of position is connected with the combustion gas space inside valve element assembly 5, and pressure stabilizing cavity 29 and valve body at the periphery of valve seat 8
Diversion cavity 27 in 7 is connected.
In the fuel gas injection valve course of work, when coil 2 is not powered on, in master reset spring 3 and the pretension of auxiliary back-moving spring 4
Under power effect, valve element assembly 5 remains motionless in initial position, under the seal band 19 of the valve element 17 in valve element assembly 5
Surface and the upper surface of the outlet annulus 11 of valve seat 8 are brought into close contact, and now the ring cavity 30 between valve element 17 and valve seat 8 not yet connects,
Whole space inside valve body 7 of the combustion gas full of fuel gas injection valve.After coil 2 is powered, electromagnet 1, armature 14 are magnetized, electromagnetism
Magnetic loop is formed between iron 1 and armature 14, armature 14 is overcome master reset spring 3 and auxiliary back-moving spring 4 by the effect of electromagnetic force
Pretightning force after move upwards, motion separates band movable valve plug 17 with the surface of valve seat 8 upwards, until spring base 15 upper surface with it is electric
The lower surface of magnet 1 is in contact, and in whole motion process, the axial movement of armature 14 is with circumferentially positioned by guide finger 13 and electricity
Cooperation between magnet 1 realizes that now, gas circuit is opened, and magnetic valve is opened to control, and gas is rapidly by axially main air drain 32 and week
Mixed admission mode to tonifying Qi hole 28 flows into, and by multiple tracks ring cavity 30, is finally vertically flowed out by gas outlet 31；Coil 2 powers off,
The electromagnetic force that armature 14 is subject to disappears, master reset spring 3 and guide finger 13 and electromagnet between electromagnet 1 and spring base 15
In the presence of auxiliary back-moving spring 4 between 1, armature 14 moves downward, band movable valve plug 17 move downward, until the surface of valve element 17 with
The surface of valve seat 8 is bonded, and armature 14 returns to initial position, and gas circuit is closed, closed electromagnetic valve.
From the above-mentioned course of work, a kind of interior 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 27 realize air inlet and water conservancy diversion process；The control of valve element 17, gas are realized by the control of actuator
The control on road, realizes air injection function；Ensure the perpendicularity of valve element 17 by interior guide frame；By opening pressure at the center of guide finger 13
Dynamic balance hole 20 is simultaneously provided with a number of relief groove 23 on bottom plate 16, avoids armature 14 from being made armature by axial force
Airline pressure is more easy to reach balance inside and outside at 14, improves the response speed of armature 14；Multiple circumferences are opened on the fin 18 of valve element 17
The structure in tonifying Qi hole 28, the lower surface of valve element 17 and the upper surface of valve seat 8 are provided with multiple tracks ring cavity 30, increase valid circulation area, reduce
The quality of valve element 17 and valve seat 8, improve reliability；The diversion angle of cone of certain angle is set at the circumferential tonifying Qi hole 28 of valve element 17
25, flow losses are reduced, increase discharge coefficient；The utility model is using axially main 32 direct air inlet of air drain and circumferential tonifying Qi hole 28
The mixed admission mode of air inlet, 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 19 is used between valve element 17 and valve seat 8
With the structure of outlet annulus 11, the face sealing of fuel gas injection valve, voltage stabilizing balance are realized, and wider annulus area can reduce punching
Hit, improve reliability；Pressure stabilizing cavity 29 is respectively provided with the center of valve seat 8 and peripheral place, can effectively suppress to fire inside fuel gas injection valve
The fluctuation of atmospheric 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 interior guiding fuel gas injection valve of bypass type mixed admission, it is mainly by electricity
Magnet, coil, master reset spring, auxiliary back-moving spring, valve element assembly, valve body and valve seat composition.Electromagnet passes through fixing bolt
It is fixed on valve body, coil is wrapped in the annular groove inside electromagnet, has been sequentially arranged valve element from top to bottom below electromagnet
Assembly, valve seat, together with valve seat is bolted to connection between valve body, mating surface therebetween passes through O-ring seal
To realize sealing；Valve element assembly is made up of guide finger, armature, spring base, pad, bottom plate, jump ring, fastening bolt and valve element,
It is characterized in that：Armature is linked together by fastening bolt and bottom plate, valve element, and one layer of pad is disposed between armature and bottom plate,
Spring base is arranged on the top of bottom plate, and its internal side surface is in contact with the side surface of armature, the both ends point of master reset spring
Wei Yu not be in the annular groove of electromagnet and spring base, electromagnet center is provided with the straight trough of certain depth, between electromagnet and armature
Guide finger be arranged in inside straight trough, guide pin centre is provided with pressure compensation opening, and a number of pressure balance is provided with bottom plate
Groove, auxiliary back-moving spring is disposed between guide finger top and electromagnet, the center of armature is arranged in, is directed to using jump ring
Pin is fixed up with armature, and valve element is made up of valve element main body, fin and seal band, and valve element assembly integral arrangement is in electromagnet
Lower section, circumferential tonifying Qi hole is opened on the fin of valve element and diversion angle of cone is set at tonifying Qi hole, using close between valve element and valve seat
Seal ring band and outlet zonary structure, face sealing, voltage stabilizing balance, and there is wider annulus area, valve seat center with
Pressure stabilizing cavity is provided with periphery, the pressure stabilizing cavity of valve seat center is connected with the combustion gas space inside valve element assembly, and valve
Pressure stabilizing cavity at seat periphery is connected with the diversion cavity in valve body.
Claims (3)
1. a kind of interior 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, guide finger are included, 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, master reset bullet are set inside electromagnet
The both ends of spring are arranged in the annular groove of electromagnet and the annular groove of spring base, and guide finger is installed at armature center, are oriented to
Pin is stretched in electromagnet, auxiliary back-moving spring is set in electromagnet, the both ends of auxiliary back-moving spring contact electromagnet and guiding respectively
Pin, pressure compensation opening is set in guide finger, relief groove is set on bottom plate, valve element is hollow structure, the valve seat below valve element
Upper setting center pressure stabilizing cavity, pressure compensation opening, relief groove, the hollow space of valve element and center pressure stabilizing cavity are communicated and formed
Inner space, seal band is set on valve element, and seal band forms ring cavity, sets outlet annulus on valve seat, outlet annulus is located at
Below ring cavity, gas outlet is set, valve element upper surface opens up axially main air drain, circumferential tonifying Qi is provided with fin below outlet annulus
Hole, and diversion angle of cone is set at tonifying Qi hole.
2. a kind of interior 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 interior 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, acted in the pretightning force of master reset spring and auxiliary back-moving spring
Under, the upper surface of seal band and valve seat on valve element is fitted close, the outside of valve inner of the combustion gas full of fuel gas injection valve
Space and inner space；After coil electricity, armature is acted on by upward electromagnetic force, and valve element assembly is overcoming master reset bullet
Spring, auxiliary back-moving spring pretightning force after move upwards, valve element separates with valve base surface, fuel gas injection valve open, gas circuit open, combustion
Gas is flowed into by the axially mixed admission mode in main air drain and circumferential tonifying Qi hole, by ring cavity, is finally vertically flowed out by gas outlet；Line
After circle power-off, under the effect of the pretightning force of master reset spring and auxiliary back-moving spring, armature moves downward, valve element assembly it is overall 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 |
|---|---|---|---|
| CN201720769282.0U CN206903773U (en) | 2017-06-28 | 2017-06-28 | A kind of interior guiding fuel gas injection valve of bypass type mixed admission |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720769282.0U CN206903773U (en) | 2017-06-28 | 2017-06-28 | A kind of interior guiding fuel gas injection valve of bypass type mixed admission |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206903773U true CN206903773U (en) | 2018-01-19 |
Family
ID=61291876
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720769282.0U Withdrawn - After Issue CN206903773U (en) | 2017-06-28 | 2017-06-28 | A kind of interior guiding fuel gas injection valve of bypass type mixed admission |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206903773U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107061058A (en) * | 2017-06-28 | 2017-08-18 | 哈尔滨工程大学 | A kind of interior guiding fuel gas injection valve of bypass type mixed admission |
-
2017
- 2017-06-28 CN CN201720769282.0U patent/CN206903773U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107061058A (en) * | 2017-06-28 | 2017-08-18 | 哈尔滨工程大学 | A kind of interior guiding fuel gas injection valve of bypass type mixed admission |
| CN107061058B (en) * | 2017-06-28 | 2023-05-30 | 哈尔滨工程大学 | Bypass type mixed air inlet internal guide gas injection valve |
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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: 20180119 Effective date of abandoning: 20230530 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20180119 Effective date of abandoning: 20230530 |