CN107165746A - A kind of outer guiding fuel gas injection valve of bypass type with floating valve seat - Google Patents
A kind of outer guiding fuel gas injection valve of bypass type with floating valve seat Download PDFInfo
- Publication number
- CN107165746A CN107165746A CN201710504600.5A CN201710504600A CN107165746A CN 107165746 A CN107165746 A CN 107165746A CN 201710504600 A CN201710504600 A CN 201710504600A CN 107165746 A CN107165746 A CN 107165746A
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- Prior art keywords
- valve
- valve seat
- valve element
- floating
- gas
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M21/00—Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form
- F02M21/02—Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form for gaseous fuels
- F02M21/0218—Details on the gaseous fuel supply system, e.g. tanks, valves, pipes, pumps, rails, injectors or mixers
- F02M21/0248—Injectors
- F02M21/0257—Details of the valve closing elements, e.g. valve seats, stems or arrangement of flow passages
- F02M21/026—Lift valves, i.e. stem operated valves
- F02M21/0269—Outwardly opening valves, e.g. poppet valves
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M21/00—Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form
- F02M21/02—Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form for gaseous fuels
- F02M21/0218—Details on the gaseous fuel supply system, e.g. tanks, valves, pipes, pumps, rails, injectors or mixers
- F02M21/0248—Injectors
- F02M21/0251—Details of actuators therefor
- F02M21/0254—Electric actuators, e.g. solenoid or piezoelectric
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M21/00—Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form
- F02M21/02—Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form for gaseous fuels
- F02M21/0218—Details on the gaseous fuel supply system, e.g. tanks, valves, pipes, pumps, rails, injectors or mixers
- F02M21/0248—Injectors
- F02M21/0257—Details of the valve closing elements, e.g. valve seats, stems or arrangement of flow passages
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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
It is an object of the invention to provide a kind of outer guiding fuel gas injection valve of bypass type with floating valve seat, by floating valve seat structure, realization is avoided due to the uneven caused reverse leakage function of fuel gas injection valve external and internal pressure, it is ensured that the reliability of fuel gas injection valve work；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 function of gas valve jet is realized in the control of gas circuit；It is engaged by outer guide frame with pressure compensation opening, relief groove, it is ensured that the perpendicularity of valve element, realizes the steady operation of air-flow, reliably working realizes high response speed；By the axially main direct air inlet of air drain and the mixed admission mode of circumferential tonifying Qi gas inlet hole, big flow is realized, the supply efficiency of engine is effectively improved, while air-flow can be avoided to interfere, the stabilization of gas circuit is realized；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 present invention relates to a kind of fuel gas injection valve, specifically natural gas engine gas injection valve.
Background technology
In recent years, the rapid growth consumed with China's oil, 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.Natural gas engine is especially made as ship power
There is good application prospect for the thrust power of riverboat.It is used as the fuel supply system of natural gas engine, fuel gas injection
The performance of valve directly determines the economy and discharge performance of natural gas engine.At present, natural gas engine is in full working scope state
Lower work has the insufficient situation of gas quantity often, causes the rotary speed unstabilization phenomenon during operation of engine full working scope, in big work(
Can be more serious on rate engine, this drastically influence the normal performance using with engine of engine.In engine operating condition
In the case of severe, easily there is the situation of reverse leakage in injection valve.Accordingly, it would be desirable to design a kind of with anti-reverse leakage function
Injection valve.Simultaneously, it is necessary to which Development response speed is fast, control accuracy is high, good reliability big flow fuel gas injection valve, flow it
Logical ability can meet natural gas engine normal work demand at high load conditions.
The content of the invention
It is an object of the invention to provide fast response time, control accuracy height, reliability height, stable gas pressure, it is efficient sealed,
The outer guiding fuel gas injection valve of big flow, a kind of bypass type with anti-reverse leakage function with floating valve seat.
The object of the present invention is achieved like this：
A kind of outer guiding fuel gas injection valve of the bypass type with floating valve seat of the present invention, it is characterized in that：Including valve body, electromagnetism
Iron, valve element assembly, floating valve seat, electromagnet be arranged on valve body on, floating valve seat be arranged on valve body in, electromagnet, valve body with
And wound around coil is formed in valve space, electromagnet between floating valve seat and annular groove is set；The valve element assembly include armature,
Spring base, bottom plate, valve element, armature, bottom plate, valve element are arranged from top to bottom to be linked together by fastening bolt simultaneously, spring base
Outside armature and annular groove is formed between armature, the two ends of back-moving spring are arranged in the annular groove and bullet of electromagnet
In the annular groove of spring abutment, armature center sets and sets relief groove on pressure compensation opening, bottom plate, and valve element is hollow structure,
Pressure compensation opening, relief groove, the hollow space of valve element are communicated, and valve seat back-moving spring, valve are set in the hollow space of valve element
Seal band and fin are set on core, and seal band formation ring cavity, valve element upper surface opens up and is provided with week on axially main air drain, fin
To tonifying Qi hole, and the setting diversion angle of cone at tonifying Qi hole；The floating valve seat includes guide base, valve seat, and guide base is fixed
In valve body, valve seat is located at below valve element, and guide base inner ring is provided with T-shaped structure, and valve seat outer ring is coordinated by setting with it
T-shaped structure be arranged on guide base in, the two ends of valve seat back-moving spring are separately fixed on valve seat and valve element, on valve seat set
Outlet annulus and guide pad, guide pad are located at around valve element, and outlet annulus is located at below ring cavity, and outlet is set below outlet annulus
Mouthful.
The present invention can also include：
The 1st, double anti-gas-leak structure is set between valve seat and guide base, and the first heavy anti-gas-leak structure is in valve seat and led
Installed above to pedestal junction in deformable seal circle, deformable seal circle and install packing washer, the second leakproof again additional along top
Depressed structure is to set two layers of O-ring seal in the T-shaped structure junction of valve seat and guide base, between valve seat and guide base
T-shaped structure junction set elastic washer.
The 2nd, extension is set on valve body, and extension sets and sets diversion cavity in the valve body below air inlet, air inlet,
Air inlet, diversion cavity are communicated；Gas is vertically flowed into valve body by air inlet, is flowed into along diversion cavity and is full of valve inner, coil
After energization, motion is separated armature band movable valve plug with valve base surface upwards, and gas circuit is opened, and magnetic valve is opened, and gas is by axially main gas
The mixed admission mode in groove and circumferential tonifying Qi hole is flowed into, and by ring cavity, is finally vertically flowed out by gas outlet；After coil blackout,
In the presence of back-moving spring between electromagnet and spring base, armature is moved downward, and band movable valve plug is moved downward, until spool table
Face is fitted with valve base surface, returns to initial position, and gas circuit is closed, closed electromagnetic valve.
Advantage of the invention is that：The present invention uses the structure with floating valve seat, and it can effectively prevent fuel gas injection valve
There is the situation of reverse leakage and the function with damping, it is ensured that the reliability and safety of fuel gas injection valve work；Pass through
By-pass structure and water conservancy diversion cavity configuration realize air inlet and water conservancy diversion process；The control of valve element is realized by the control of actuator, gas circuit
Control, realizes the function of gas valve jet；It is engaged by outer guide frame with pressure compensation opening, relief groove, it is ensured that valve
The perpendicularity of core, can effectively suppress the fluctuation of gaseous-pressure inside fuel gas injection valve, realize the steady operation of air-flow, reliable work
Make, realize high response speed；By the axially main direct air inlet of air drain and the mixed admission mode of circumferential tonifying Qi gas inlet hole, realize big
Flow, effectively improves the supply efficiency of engine, while air-flow can be avoided to interfere, 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 invention；
Fig. 2 is valve element composite unit structure schematic diagram of the invention；
Fig. 3 moves towards schematic diagram for the gas circuit of the present invention；
Fig. 4 is floating valve seat schematic enlarged-scale view；
Fig. 5 is valve core structure top view；
Fig. 6 is valve core structure tomograph；
Fig. 7 is floating valve seat force diagram.
Embodiment
Illustrate below in conjunction with the accompanying drawings and the present invention is described in more detail：
Illustrate with reference to Fig. 1-7, Fig. 1 for the overall structure of outer guiding fuel gas injection valve of the bypass type of the present invention with floating valve seat
Figure, is mainly made up of electromagnet 1, coil 2, back-moving spring 3, valve element assembly 5, valve body 6 and floating valve seat 7.Electromagnet 1 passes through
Fixing bolt 8 is fixed on valve body 6, and coil 2 is wrapped in the annular groove inside electromagnet 1, below electromagnet 1 from top to bottom according to
It is secondary to be disposed with valve element assembly 5, floating valve seat 7.
As shown in Fig. 2 a kind of valve element assembly 5 of outer guiding fuel gas injection valve of bypass type with floating valve seat is main by holding in the mouth
Iron 10, spring base 11, fastening bolt 19, pad 17, bottom plate 12 and valve element 13 are constituted, 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 is in contact with the side surface of armature 10, and the two ends of back-moving spring 3 are located at electromagnet 1 and bullet respectively
In the annular groove of spring abutment 11, the center of armature 11 is provided with pressure compensation opening 16, bottom plate 12 and is provided with a number of relief groove
18, it is to avoid armature 10 is made airline pressure inside and outside at armature 10 be more easy to reach balance, improve armature 10 and respond speed by axial force
Degree.The pressure compensation opening 16 of the center of armature 11 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, it is to avoid 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 1.
As shown in figure 3, first, combustion gas is vertically flowed into valve body 6 by air inlet 22, flowed into along air inlet 25 and be full of valve body
Inside 6.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 combination
Body 5 remains motionless in initial position, the lower surface of the seal band 15 of the valve element 13 in valve element assembly 5 and the outlet of valve seat 31
The upper surface of annulus 26 is brought into close contact, and now outlet annulus 26 is not yet connected with the inner space of valve body 6, 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 10 are magnetized, between electromagnet 1 and armature 10
Form magnetic loop, armature 10 moves upwards after act on the pretightning force for overcoming back-moving spring 3 by electromagnetic force, with movable valve plug 13 to
Upper motion is separated with the surface of valve seat 31, until the upper surface of spring base 11 is in contact with the lower surface of electromagnet 1, is entirely moved through
Cheng Zhong, the cooperation between the axial movement of armature 8 and circumferentially positioned 4 guide pads 21 and valve element 13 by valve seat 31 is controlled
System is realized.Now, gas circuit is opened, and magnetic valve is opened, gas being mixed into by axially main air drain 36 and circumferential tonifying Qi hole 25 rapidly
Gas mode is flowed into, and by multiple tracks ring cavity 24, is finally vertically flowed out by gas outlet 27；Coil 2 is powered off, the electromagnetic force that armature 10 is subject to
Disappear, in the presence of the back-moving spring 7 between electromagnet 1 and spring base 11, armature 10 is moved downward, band movable valve plug 13 is downward
Motion, until the surface of valve element 13 is fitted with the surface of valve seat 31, armature 10 returns to initial position, and gas circuit is closed, closed electromagnetic valve.
As shown in fig. 6, in order to prevent combustion gas reverse leakage, improving the reliability and security of fuel gas injection valve, the present invention
Employ the structure of floating valve seat 7.Floating valve seat 7 can be locked by magnetic valve when magnetic valve external pressure height is with air pressure inside,
It effectively prevent the reverse leakage of combustion gas.Floating valve seat 7 is made up of 7 parts：Guide base 29, valve seat 31, valve seat reset bullet
Spring 35, O-ring seal 30, packing washer 28, deformable seal circle 33, elastic washer 34.Guide base 29 is one with valve body 1
Formula structure, valve seat 31 is arranged on guide base 29.The inner ring of guide base 29 carries T-shaped structure, the T-shaped knot with the outer ring of valve seat 31
Structure is engaged.The two ends of valve seat back-moving spring 35 are separately fixed on valve seat 31 and valve element 13, and keep certain pretightning force.
In order to prevent gas leakage between valve seat 31 and guide base 29, install double additional between valve seat 31 and guide base 29
Anti-gas-leak structure, the first weight anti-gas-leak structure is the installation deformable seal circle above valve seat 31 and the junction of guide base 29
33, packing washer 28 is installed additional above outer in deformable seal circle 33, is fixed on by screw 32 on valve seat 31, packing washer
28 ensure uniform force, strengthen sealing.The material of deformable seal circle 33 uses deformable flexible plastic, it is ensured that it does not influence
The motion of valve seat 31.Second resealing is to have installed two layers of O-ring seal 30 additional in the T-shaped junction of valve seat 31 and guide base 29,
Further enhance sealing.T-shaped junction between valve seat 31 and guide base 29 has installed one layer of elastic washer 34 additional, reduces
Vibratory impulse power during contact, serves the effect of damping.Effectively increase the reliability of magnetic valve.
Valve seat 31 is by combustion gas inside the elastic force F4 of valve seat back-moving spring 35, magnetic valve the external gas pressure F1 and F2, magnetic valve
Pressure F3 and the thrust of valve element 13 effect.Valve element 13 is acted on by back-moving spring elastic force.Air pressure is more than electromagnetism below magnetic valve
Valve air pressure inside, magnetic valve the external gas pressure F1, F2 are respectively acting at the lower section of valve seat 31 and outlet annulus 26, under valve seat 31
Square contact area is much larger than outlet annulus 26, therefore, and F1 is much larger than F2, and being expanded in the external gas pressure causes valve element 13 upward
Before motion, the external gas pressure F1, F2 overcome the initial tension of spring of back-moving spring 7, and valve seat 31 is upward together with valve element 13
Motion.Valve seat 31 is moved upwardly until that spring base 14 is in contact with electromagnet.Even if now electromagnet is powered, valve element 13 can not yet
Motion upwards, magnetic valve can not be opened.Magnetic valve is locked.
When magnetic valve inner and outer air pressure recovers normal, valve seat 31 is moved back down in the presence of valve seat back-moving spring 35
It is in situ.If now electromagnet is powered, valve element 13 is still remained stationary as, and magnetic valve is normally-open.Electromagnetism when wanting to close magnetic valve
Iron is powered off, and valve element 13 is moved downward in the presence of back-moving spring 7, closed electromagnetic valve.If now electromagnet is not powered on, valve seat
31 move back down to original position together with valve element 13 in the presence of back-moving spring 7, and magnetic valve is remained turned-off.Want to open electromagnetism
During valve, electromagnet is powered, and valve element 13 is moved upwards under armature drive, and magnetic valve is normally-open.
From the above-mentioned course of work, outer guiding fuel gas injection valve of the bypass type of the present invention with floating valve seat uses band to float
The structure of valve seat 7, it effectively can prevent fuel gas injection valve from reverse leakage occur in the case of injection valve inner and outer air pressure exception
Situation and with damping function, it is ensured that fuel gas injection valve work reliability and safety；By by-pass structure and entering
The structure of gas port 25 realizes air inlet and water conservancy diversion process；The control of valve element 13 is realized by the control of actuator, the control of gas circuit is realized
Air injection function；Ensure the perpendicularity of valve element 13 by outer guide frame；By opened at the center of armature 10 pressure compensation opening 16 and
A number of relief groove 18 is provided with bottom plate 12, it is to avoid armature 10 is made gas circuit pressure inside and outside at armature 10 by axial force
Power is more easy to reach balance, improves the response speed of armature 10；The structure in multiple circumferential tonifying Qi holes 25, valve element are opened on the rib of valve element 13
13 lower surfaces and the upper surface of valve seat 31 are provided with multiple tracks ring cavity 24, increase valid circulation area, reduce the matter of valve element 13 and valve seat 31
Amount, improves reliability；The diversion angle of cone 20 of certain angle is set at the circumferential tonifying Qi hole 25 of valve element 13, flow losses is reduced, increases
Big flow coefficient；The present invention is increased using the mixed admission mode of the axially direct air inlet of main air drain 36 and the circumferential air inlet of tonifying Qi hole 25
Air-flow coefficient of discharge is added, big flow is realized, the supply efficiency of fuel gas injection valve is effectively improved, while air-flow can be avoided to do
Relate to, realize balancing, stably for gas circuit；Multiple-sealed annulus 15 and the structure of outlet annulus 26 are used between valve element 13 and valve seat 31, it is real
The face sealing of existing fuel gas injection valve, voltage stabilizing balance, and wider annulus area can reduce impact, improve reliability.
Technical scheme：A kind of outer guiding fuel gas injection valve of bypass type with floating valve seat, it is mainly by electromagnetism
Iron, coil, back-moving spring, valve element assembly, valve body and floating valve seat composition.Electromagnet is fixed on valve body by fixing bolt
On, coil is wrapped in the annular groove inside electromagnet, has been sequentially arranged valve element assembly, floating from top to bottom below electromagnet
Valve seat；Valve element assembly is made up of armature, spring base, pad, bottom plate, jump ring, fastening bolt and valve element, and armature is by fastening spiral shell
Bolt is linked together with bottom plate, valve element, and one layer of pad is disposed between armature and bottom plate, and 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 two ends of back-moving spring are located at the annular of electromagnet and spring base respectively
In groove, armature center, which is provided with pressure compensation opening, bottom plate, is provided with a number of relief groove.Valve element is by valve element main body, rib
Piece, seal band composition, 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 circumferential tonifying Qi hole, seal band and outlet annulus, face sealing, voltage stabilizing are used between valve element and floating valve seat
Balance, and with wider annulus area.On circumferentially fixed 4 guide pads on valve seat of valve element, it is ensured that its perpendicularity, valve
Core moves up and down spacing by the progress of the distance between spring base and iron core.Floating valve seat is resetted by guide base, valve seat and valve seat
Spring, O-ring seal, packing washer, deformable seal circle, elastic washer composition.It is characterized in that：Guide base and valve body are one
Body, valve seat is arranged on guide base.Guide base inner ring carries T-shaped structure, is engaged with the T-shaped structure of valve seat outer ring.
Valve seat back-moving spring two ends are separately fixed on valve seat and valve element, and keep certain pretightning force.Valve seat and guide base it
Between installed double anti-gas-leak structure additional, the first heavy anti-gas-leak structure is to install deformable above valve seat and guide base junction
Packing washer is installed additional above outer, be screwed on valve seat in sealing ring, deformable seal circle.Deformable seal circle
Material uses deformable flexible plastic, it is ensured that it does not influence the motion of valve seat.Second resealing is the T in valve seat and guide base
Shape junction has installed two layers of O-ring seal additional.
Claims (3)
1. a kind of outer guiding fuel gas injection valve of bypass type with floating valve seat, it is characterized in that：Including valve body, electromagnet, valve element group
Fit, floating valve seat, electromagnet is arranged on valve body, and floating valve seat is arranged in valve body, electromagnet, valve body and floating valve seat
Between form in valve space, electromagnet wound around coil and annular groove be set；The valve element assembly includes armature, spring base, bottom
Plate, valve element, armature, bottom plate, valve element arrange that spring base is located at outside armature while being linked together by fastening bolt from top to bottom
Portion simultaneously forms annular groove between armature, and the two ends of back-moving spring are arranged in the annular groove of electromagnet and the annular of spring base
In groove, armature center sets pressure compensation opening, sets relief groove on bottom plate, and valve element is hollow structure, pressure compensation opening,
Relief groove, the hollow space of valve element are communicated, and set in the hollow space of valve element and sealing is set on valve seat back-moving spring, valve element
Annulus and fin, seal band formation ring cavity, valve element upper surface open up and are provided with circumferential tonifying Qi hole on axially main air drain, fin, and
Diversion angle of cone is set at tonifying Qi hole；The floating valve seat includes guide base, valve seat, and guide base is fixed in valve body, valve
Seat is located at below valve element, and guide base inner ring is provided with T-shaped structure, and valve seat outer ring is by setting the T-shaped structure coordinated with it to pacify
In guide base, the two ends of valve seat back-moving spring are separately fixed on valve seat and valve element, on valve seat set outlet annulus and
Guide pad, guide pad is located at around valve element, and outlet annulus is located at below ring cavity, and gas outlet is set below outlet annulus.
2. a kind of outer guiding fuel gas injection valve of the bypass type according to claim 1 with floating valve seat, it is characterized in that：In valve
Double anti-gas-leak structure is set between seat and guide base, the first heavy anti-gas-leak structure is on valve seat and guide base junction
Side is installed in deformable seal circle, deformable seal circle installs packing washer additional along top, and the second heavy anti-gas-leak structure is in valve seat
Two layers of O-ring seal, the T-shaped structure junction between valve seat and guide base are set with the T-shaped structure junction of guide base
Elastic washer is set.
3. a kind of outer guiding fuel gas injection valve of the bypass type according to claim 1 or 2 with floating valve seat, it is characterized in that：
Extension is set on valve body, and extension sets and diversion cavity is set in the valve body below air inlet, air inlet, air inlet, is led
Stream chamber is communicated；Gas is vertically flowed into valve body by air inlet, is flowed into and is full of after valve inner, coil electricity along diversion cavity, rank
Motion is separated sheet iron strip movable valve plug with valve base surface upwards, and gas circuit unlatching, magnetic valve is opened, and gas is by axially main air drain and circumferential benefit
The mixed admission mode of stomata is flowed into, and by ring cavity, is finally vertically flowed out by gas outlet；After coil blackout, in electromagnet and bullet
In the presence of back-moving spring between spring abutment, armature is moved downward, and band movable valve plug is moved downward, until spool face and valve seat table
Face is fitted, and returns to initial position, and gas circuit is closed, closed electromagnetic valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710504600.5A CN107165746B (en) | 2017-06-28 | 2017-06-28 | Bypass type externally-guided gas injection valve with floating valve seat |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710504600.5A CN107165746B (en) | 2017-06-28 | 2017-06-28 | Bypass type externally-guided gas injection valve with floating valve seat |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107165746A true CN107165746A (en) | 2017-09-15 |
| CN107165746B CN107165746B (en) | 2023-06-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710504600.5A Active CN107165746B (en) | 2017-06-28 | 2017-06-28 | Bypass type externally-guided gas injection valve with floating valve seat |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107420227A (en) * | 2017-06-28 | 2017-12-01 | 哈尔滨工程大学 | A kind of interior guiding fuel gas injection valve of bypass type with floating valve seat |
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| CN106575562A (en) * | 2014-11-13 | 2017-04-19 | 哈尔滨工程大学 | Composite magnetic circuit double-permanent magnet electromagnet and composite magnetic circuit double-permanent magnet high-speed solenoid valve |
| CN105649819A (en) * | 2014-11-28 | 2016-06-08 | 罗伯特·博世有限公司 | Direct-injecting gas injector with inproved opening and closing performance |
| CN204738888U (en) * | 2015-07-10 | 2015-11-04 | 重庆红江机械有限责任公司 | Gas injection valve for engine |
| CN105626316A (en) * | 2016-02-29 | 2016-06-01 | 哈尔滨工程大学 | Combined type pressurizing double-electromagnetic-valve gas injection device |
| CN206816398U (en) * | 2017-06-28 | 2017-12-29 | 哈尔滨工程大学 | A kind of outer guiding fuel gas injection valve of bypass type with floating valve seat |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107420227A (en) * | 2017-06-28 | 2017-12-01 | 哈尔滨工程大学 | A kind of interior guiding fuel gas injection valve of bypass type with floating valve seat |
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