CN107091362A - A kind of double electromagnetism fuel gas injection valves of adjustable actual internal area coaxial-type - Google Patents
A kind of double electromagnetism fuel gas injection valves of adjustable actual internal area coaxial-type Download PDFInfo
- Publication number
- CN107091362A CN107091362A CN201710512056.9A CN201710512056A CN107091362A CN 107091362 A CN107091362 A CN 107091362A CN 201710512056 A CN201710512056 A CN 201710512056A CN 107091362 A CN107091362 A CN 107091362A
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- valve
- armature
- iron core
- valve element
- realized
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
- F16K31/06—Actuating devices; Operating means; Releasing devices electric; magnetic using a magnet, e.g. diaphragm valves, cutting off by means of a liquid
- F16K31/0644—One-way valve
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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
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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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- 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
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
- F16K31/06—Actuating devices; Operating means; Releasing devices electric; magnetic using a magnet, e.g. diaphragm valves, cutting off by means of a liquid
- F16K31/0675—Electromagnet aspects, e.g. electric supply therefor
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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 double electromagnetism fuel gas injection valves of adjustable actual internal area coaxial-type, by the structure controlled in double spool double electromagnet, adjustable spray air flow is realized.Air inlet and water conservancy diversion process are realized by bypass structure and water conservancy diversion cavity configuration；The control of valve element is realized by the control of actuator, air injection function is realized in the control of gas circuit；It is engaged by outer guide frame with internal diversion chamber, 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 the fuel gas injection of a kind of fuel gas injection valve, specifically natural gas engine gas system
Valve.
Background technology
Problem of environmental pollution is increasingly serious, and discharge index requires increasingly strict, demand of the in the market to high-power gas machine
Constantly increase.With the use of large-scale gas engine, manufacture, the maintenance and repair of key components and parts turn into restriction gas
The key factor of development of engine, fuel gas injection valve is exactly such a key components and parts.Fuel gas injection valve is gaseous fuel electricity
One of kernel component of multi-point injection gas machine machine containing double fuel is controlled, each cylinder can be achieved and supplies and enter qi leel by stages at regular time and quantity
Layer, its service behaviour has highly important influence to the dynamic property of gas machine or dual fuel engine, emission performance.Injection valve is needed
Will under the bad working environments such as HTHP cumulative activation thousands of hours, and dismantle etc. maintenance work error can be caused progressively to accumulate,
Finally injection valve is caused to be difficult to debug.
Accordingly, it would be desirable to Development response speed is fast, control accuracy is high, good reliability, the adjustable big flow combustion gas of spray air flow
Injection valve, enables its negotiability to 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, fuel gas injection it is stable, highly reliable, with anti-reverse leakage work(
A kind of double electromagnetism fuel gas injection valves of adjustable actual internal area coaxial-type of energy.
The object of the present invention is achieved like this：
A kind of double electromagnetism fuel gas injection valves of adjustable actual internal area coaxial-type of the present invention, it is characterized in that：Including valve body, main electricity
Magnet, secondary electromagnet, valve element assembly, valve rod, T-shaped armature, small valve core, valve seat, valve seat are fixed on below valve body, main electromagnetism
Iron includes iron core and master reset spring, wound around coil and sets annular groove in iron core, secondary electromagnet include secondary iron core and time
Secondary coil is wound in level back-moving spring, secondary iron core and annular groove is set, the upper end of secondary iron core and valve body is mutually fixed, iron core
Positioned at the lower section of secondary iron core, T-shaped armature is set, T-shaped armature upper surface sets annular groove, T-shaped between iron core and secondary iron core
Secondary back-moving spring is set between the annular groove of the annular groove of armature and secondary iron core, described 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 master reset spring are arranged in the annular groove and bullet of iron core
In the annular groove of spring abutment, set on bottom plate and seal band and rib are set on relief groove, valve element, seal band formation ring cavity,
Outlet annulus and guide pad are set on valve seat, and guide pad is located at around valve element, and outlet annulus is located at below ring cavity, is set below ring cavity
Gas outlet is put, valve element upper surface opens up and circumferential tonifying Qi hole is provided with axially main air drain, rib, and the setting deflection cone at tonifying Qi hole
Angle, upper end and the T-shaped armature of valve rod are mutually fixed, the lower end of valve rod sequentially pass through iron core, armature, bottom plate and valve element and with small valve
Core is mutually fixed, and small valve core is located on valve seat, and the valve seat below small valve core sets venthole.
The present invention can also include：
1st, small valve core and valve rod use nonmetallic materials.
2nd, when needing low discharge, secondary coil is powered, and T-shaped armature is overcome secondary back-moving spring by the effect of electromagnetic force
Pretightning force after band ovable valve stem move upwards, valve rod drive small valve core move upwards, venthole jet；When needing big flow,
Coil electricity, armature is moved upwards after the pretightning force for overcoming master reset spring is acted on by electromagnetic force, and armature drives whole valve
Core assembly is moved upwards, gas outlet jet；When needing to close jet, coil and secondary coil power-off, armature and T-shaped armature
Moved downward respectively in the presence of master reset spring and secondary back-moving spring, until armature and T-shaped armature come back to initially
Position, jet terminates.
Advantage of the invention is that：The present invention realizes adjustable jet by the structure controlled in double spool double electromagnet
Flow.By opening internal diversion chamber at armature center and a number of relief groove being provided with bottom plate, it is to avoid armature by
To axial force, make airline pressure inside and outside at armature be more easy to reach balance, improve armature response speed；The present invention is by valve element
Circumferential tonifying Qi hole is opened on four ribs, increases circulation area, valve element quality is reduced, reliability is improved.At the circumferential tonifying Qi hole of valve element
The outlet annulus of certain angle is set, flow losses are reduced, increases discharge coefficient.The present invention is using the axially main direct air inlet of air drain
With the mixed admission mode of circumferential tonifying Qi gas inlet hole, increase charge flow rate coefficient, increase air inflow, while air-flow can be avoided to do
Relate to, gas circuit is reached balance.It is effectively improved the supply efficiency of engine.
Brief description of the drawings
Fig. 1 is structural representation of the invention；
Fig. 2 is valve element composite unit structure enlarged drawing of the invention；
Fig. 3 moves towards schematic diagram for the gas circuit of the present invention；
Fig. 4 is valve core structure tomograph.
Embodiment
Illustrate below in conjunction with the accompanying drawings and the present invention is described in more detail：
Show with reference to the overall structure that Fig. 1-4, Fig. 1 is the double electromagnetism fuel gas injection valves of adjustable actual internal area coaxial-type of the invention
It is intended to, including valve body 1, main electromagnet, secondary electromagnet, valve rod 7, small valve core 12, T-shaped armature 6, valve element assembly 11, valve seat
14 4 is most of.Secondary iron core 2 is linked together by upper square thread with valve body 1.Main electromagnet is main by 9 groups of iron core 8, coil
Into.The both sides of iron core 8 are provided with the annular groove of arrangement master reset spring 10, and valve element assembly 11 is arranged in the lower section of iron core 8.Secondary electromagnetism
Iron is mainly made up of secondary iron core 2, secondary coil 3.It is characterized in that：The secondary both sides of iron core 2 are provided with the secondary back-moving spring 4 of arrangement
Annular groove, T-shaped armature 6 is arranged in the secondary lower section of iron core 2.Valve rod 7 is by the way that in fastening screw 5 and T-shaped armature 6, small valve core 12 leads to
Cross being threadedly secured on valve rod 7 below valve rod 7, it is ensured that the perpendicularity of valve rod 7.Small valve core 12 is located in valve element assembly 11
Centre, small valve core 12 and valve rod 7 use nonmetallic materials.The motion of small valve core 12 is positioned by valve rod 7 and main electromagnet,
Carried out by the distance between T-shaped armature 6 and secondary electromagnet spacing.
Valve element assembly 11 shown in Fig. 2 it is main by armature 15, spring base 16, fastening bolt 20, pad 17, bottom plate 19,
Valve element 21 is constituted.It is characterized in that：Armature 15, pad 17, bottom plate 19 and valve element 21 are linked together by fastening bolt 20, spring
Seat 16 is arranged on bottom plate 19.It is provided with armature 15 on internal diversion chamber 29, bottom plate 19 and is provided with a number of relief groove
18, it is to avoid armature 15 is made airline pressure inside and outside at armature 15 be more easy to reach balance, improve armature 15 and respond speed by axial force
Degree；Master reset spring 10 is located between iron core 8 and spring base 16.
When needing compared with low discharge, secondary coil 3 is powered, and secondary iron core 2, T-shaped armature 6 are magnetized, secondary iron core 2 and T
Magnetic loop is formed between shape armature 6, T-shaped armature 6 is acted on by electromagnetic force and driven after the pretightning force for overcoming secondary back-moving spring 4
Valve rod 7 is moved upwards.Valve rod 7 drives small valve core to move upwards, and magnetic valve small valve core 12 is opened, and realizes compared with low discharge jet.When
When needing larger flow, coil 9 is powered, and iron core 8, armature 15 are magnetized, and magnetic loop, armature are formed between iron core 8 and armature 15
15 the pretightning force for overcoming master reset spring 10 is acted on by electromagnetic force after move upwards, armature 15 drives whole valve element assembly
11 motions upwards, magnetic valve is fully opened, and realizes larger flow jet.In whole motion process, the axial movement of armature 15 with
Cooperation between circumferentially positioned 4 guide pads 13 and valve element 21 by valve seat 35 controls to realize, until spring base 16
Upper surface is in contact with the lower surface of iron core 8.When needing closed electromagnetic valve, coil 9 and secondary coil 3 are powered off, armature 15 and T
The electromagnetic force that shape armature 6 is subject to disappears, and armature 15 and T-shaped armature 6 are respectively in master reset spring 10 and the work of secondary back-moving spring 4
Moved downward under, until armature 15 and T-shaped armature 6 come back to initial position, closed electromagnetic valve.In four ribs of valve element 21
2 circumferential tonifying Qi holes 24 are opened on 23 respectively, response speed is improved, increases circulation area, while can also reduce quality, improve reliable
Property.The outlet annulus 30 of certain angle is set at circumferential tonifying Qi hole 24, flow losses are reduced, increases discharge coefficient.Using axle
To the mixed admission mode of the direct air inlet of main air drain 39 and the circumferential air inlet of tonifying Qi hole 24, increase charge flow rate coefficient, increase air inlet
Amount, while air-flow can be avoided to interfere, makes gas circuit reach balance.Outlet annulus 30 is used between valve element 21 and valve seat 35, face is sealed,
Voltage stabilizing is balanced, and wider annulus area can reduce impact, improves reliability.
As shown in figure 3, during low discharge jet, gas is vertically flowed into valve body 1 by air inlet 26, is flowed into along diversion cavity 27
Inside valve body 1, after secondary coil 3 is powered, small valve core 12 rises, and gas flows along internal diversion chamber 29 and relief groove 18
Enter the central space of valve element assembly 11, then flowed out by the venthole in center.During big flow jet, after coil 9 is powered, armature 15
Moved upwards after the pretightning force for overcoming master reset spring 10 is acted on by electromagnetic force, band movable valve plug 21 is moved and valve seat 35 upwards
Surface is separated, now, and gas circuit is opened, and magnetic valve is opened, and gas is by axially main air drain 39 and the mixed admission in circumferential tonifying Qi hole 24
Mode is flowed into, and by the ring cavity 28 of the crisscross distribution of multiple tracks, is finally vertically flowed out by gas outlet 31；Coil 9 is powered off, armature 15 by
Electromagnetic force disappear, in the presence of the back-moving spring between iron core 8 and spring base 16, armature 15 is moved downward, band movable valve plug
21 move downward, until the surface of valve element 21 is fitted with the surface of valve seat 35, return to initial position, gas circuit is closed, closed electromagnetic valve.
From the above-mentioned course of work, the double electromagnetism fuel gas injection valves of the adjustable actual internal area coaxial-type invented pass through
The structure controlled in double spool double electromagnet, realizes adjustable spray air flow.The present invention is led by opening inside at the center of armature 15
Stream chamber 29 is simultaneously provided with a number of relief groove 18 on bottom plate 19, it is to avoid armature 15 is made at armature 15 by axial force
Inside and outside airline pressure is more easy to reach balance, improves the response speed of armature 15；Circumferential tonifying Qi hole is opened on four ribs 23 of valve element 21
24 structure, increases circulation area, reduces the mass of valve element 21, improves reliability.One is set at the circumferential tonifying Qi hole 24 of valve element 21
Determine the outlet annulus 30 of angle, reduce flow losses, increase discharge coefficient.The present invention using axially the direct air inlet of main air drain 39 and
The mixed admission mode of the circumferential air inlet of tonifying Qi hole 24, increases charge flow rate coefficient, increases air inflow, while air-flow can be avoided to do
Relate to, gas circuit is reached balance.It is effectively improved the supply efficiency of engine.
Technical scheme：A kind of double electromagnetism fuel gas injection valves of adjustable actual internal area coaxial-type, it is by valve body, master
Electromagnet, secondary electromagnet, valve element assembly, valve rod, small valve core, the most of composition of valve seat four.Main electromagnet and secondary electromagnetism
Iron is linked together by square thread thereon and valve body.Main electromagnet is mainly made up of iron core, coil.Iron core both sides are provided with cloth
The annular groove of master reset spring is put, valve element assembly is arranged in below iron core.Valve element assembly it is main by armature, it is spring base, tight
Fixing bolt, pad, bottom plate, valve element composition.Armature, pad, bottom plate and valve element are linked together by fastening bolt, spring base peace
It is provided with bottom plate, on bottom plate on a number of relief groove, armature and carries internal diversion chamber.Back-moving spring is located at iron
Between core and spring base.Open multiple circumferential tonifying Qi holes respectively on four ribs of valve element.Secondary electromagnet it is main by secondary iron core,
Secondary coil is constituted.Secondary iron core both sides are provided with the annular groove of the secondary back-moving spring of arrangement, and T-shaped armature is arranged under secondary iron core
Side.Valve rod is by the way that on fixed screw and T-shaped armature, small valve core passes through being threadedly secured on valve rod below valve rod, it is ensured that valve rod
Perpendicularity.Small valve core is located at valve element assembly center, and small valve core and valve rod use nonmetallic materials.The motion of small valve core is led to
Cross valve rod to be positioned with main electromagnet, carried out by the distance between T-shaped armature and secondary electromagnet spacing.Valve element and valve seat
Between say compression ring band using three, face sealing, voltage stabilizing balance, and with wider annulus area.Valve element is circumferentially fixed in valve seat
On 4 guide pads on, it is ensured that its perpendicularity, valve element moves up and down spacing by the progress of the distance between spring base and iron core.
Claims (3)
1. a kind of double electromagnetism fuel gas injection valves of adjustable actual internal area coaxial-type, it is characterized in that：Including valve body, main electromagnet, secondary
Level electromagnet, valve element assembly, valve rod, T-shaped armature, small valve core, valve seat, valve seat are fixed on below valve body, and main electromagnet includes
Wound around coil and annular groove is set in iron core and master reset spring, iron core, secondary electromagnet includes secondary iron core and secondary resetted
Secondary coil is wound in spring, secondary iron core and annular groove is set, the upper end of secondary iron core and valve body is mutually fixed, and iron core is located at secondary
The lower section of level iron core, sets T-shaped armature between iron core and secondary iron core, T-shaped armature upper surface sets annular groove, T-shaped armature
Secondary back-moving spring is set between the annular groove of annular groove and secondary iron core, described valve element assembly include armature, spring base,
Bottom plate, valve element, armature, bottom plate, valve element arrange that spring base is located at armature while being linked together by fastening bolt from top to bottom
Outside simultaneously forms annular groove between armature, and the two ends of master reset spring are arranged in the annular groove of iron core and the ring of spring base
In shape groove, set on bottom plate and seal band and rib are set on relief groove, valve element, seal band is formed to be set on ring cavity, valve seat
Outlet annulus and guide pad are put, guide pad is located at around valve element, and outlet annulus is located at below ring cavity, and outlet is set below ring cavity
Mouthful, valve element upper surface opens up and circumferential tonifying Qi hole is provided with axially main air drain, rib, and setting diversion angle of cone, valve rod at tonifying Qi hole
Upper end mutually fixed with T-shaped armature, the lower end of valve rod sequentially passes through iron core, armature, bottom plate and valve element and mutually solid with small valve core
Fixed, small valve core is located on valve seat, and the valve seat below small valve core sets venthole.
2. a kind of double electromagnetism fuel gas injection valves of adjustable actual internal area coaxial-type according to claim 1, it is characterized in that：It is small
Valve element and valve rod use nonmetallic materials.
3. a kind of double electromagnetism fuel gas injection valves of adjustable actual internal area coaxial-type according to claim 1 or 2, its feature
It is：When needing low discharge, secondary coil is powered, and T-shaped armature is acted on the pretension for overcoming secondary back-moving spring by electromagnetic force
Band ovable valve stem is moved upwards after power, and valve rod drives small valve core to move upwards, venthole jet；When needing big flow, coil leads to
Electricity, armature is moved upwards after the pretightning force for overcoming master reset spring is acted on by electromagnetic force, and armature drives whole valve element combination
Body is moved upwards, gas outlet jet；When needing to close jet, coil and secondary coil power-off, armature and T-shaped armature exist respectively
Move downward, until armature and T-shaped armature come back to initial position, spray in the presence of master reset spring and secondary back-moving spring
Depressed beam.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710512056.9A CN107091362B (en) | 2017-06-28 | 2017-06-28 | Coaxial double-electromagnetic fuel gas injection valve with adjustable cross-sectional flow area |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710512056.9A CN107091362B (en) | 2017-06-28 | 2017-06-28 | Coaxial double-electromagnetic fuel gas injection valve with adjustable cross-sectional flow area |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107091362A true CN107091362A (en) | 2017-08-25 |
| CN107091362B CN107091362B (en) | 2023-06-09 |
Family
ID=59640783
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710512056.9A Active CN107091362B (en) | 2017-06-28 | 2017-06-28 | Coaxial double-electromagnetic fuel gas injection valve with adjustable cross-sectional flow area |
Country Status (1)
| Country | Link |
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| CN (1) | CN107091362B (en) |
Cited By (5)
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| CN108869849A (en) * | 2018-09-12 | 2018-11-23 | 苏州丹顿机电有限公司 | A kind of electromagnetism check valve in adjustable cutoff direction |
| CN109330493A (en) * | 2018-10-30 | 2019-02-15 | 小狗电器互联网科技（北京）股份有限公司 | Water supply device, method of supplying water and the sweeping robot of sweeping robot |
| CN109538380A (en) * | 2019-01-17 | 2019-03-29 | 哈尔滨工程大学 | A kind of double electromagnetism bypass type fuel gas injection valves of the double-iron core of measurable flow amount |
| CN109779792A (en) * | 2019-01-17 | 2019-05-21 | 哈尔滨工程大学 | A kind of double electromagnetism through type fuel gas injection valves of the double-iron core of measurable flow amount |
| CN114233529A (en) * | 2021-12-27 | 2022-03-25 | 营口理工学院 | Gas electric spray valve capable of controlling gas flow |
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| CN108869849A (en) * | 2018-09-12 | 2018-11-23 | 苏州丹顿机电有限公司 | A kind of electromagnetism check valve in adjustable cutoff direction |
| CN109330493A (en) * | 2018-10-30 | 2019-02-15 | 小狗电器互联网科技（北京）股份有限公司 | Water supply device, method of supplying water and the sweeping robot of sweeping robot |
| CN109330493B (en) * | 2018-10-30 | 2023-11-28 | 北京小狗吸尘器集团股份有限公司 | Water supply device and water supply method of sweeping robot and sweeping robot |
| CN109538380A (en) * | 2019-01-17 | 2019-03-29 | 哈尔滨工程大学 | A kind of double electromagnetism bypass type fuel gas injection valves of the double-iron core of measurable flow amount |
| CN109779792A (en) * | 2019-01-17 | 2019-05-21 | 哈尔滨工程大学 | A kind of double electromagnetism through type fuel gas injection valves of the double-iron core of measurable flow amount |
| CN114233529A (en) * | 2021-12-27 | 2022-03-25 | 营口理工学院 | Gas electric spray valve capable of controlling gas flow |
| CN114233529B (en) * | 2021-12-27 | 2023-10-10 | 营口理工学院 | Gas electronic injection valve capable of controlling gas flow |
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| CN107091362B (en) | 2023-06-09 |
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