CN206000643U - A kind of through type binary channels fuel gas injection valve - Google Patents
A kind of through type binary channels fuel gas injection valve Download PDFInfo
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- CN206000643U CN206000643U CN201620810080.1U CN201620810080U CN206000643U CN 206000643 U CN206000643 U CN 206000643U CN 201620810080 U CN201620810080 U CN 201620810080U CN 206000643 U CN206000643 U CN 206000643U
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- iron core
- seat
- valve seat
- dynamic iron
- valve
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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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Abstract
A kind of through type binary channels fuel gas injection valve, including solenoid and dynamic iron core, the upper/lower terminal of the solenoid is coordinated with fixed core, sealed nozzle respectively, and nipple top is slidably matched with the lateral wall of dynamic iron core, is provided with return spring between dynamic iron core and fixed core；The lower end of nozzle is coaxially arranged with valve seat, auxiliary-seat is coaxially arranged with the middle part of the valve seat, the top of valve seat and auxiliary-seat all with dynamic iron core bottom compression fit, annular air-flow path is formed between auxiliary-seat upper end and the madial wall of valve seat, the bottom of auxiliary-seat offers ventilation counterbore, through hole, through hole connection annular air-flow path and ventilation counterbore is offered on the side wall of ventilation counterbore；The middle part of the dynamic iron core offers air through hole, and the diameter of air through hole is less than auxiliary-seat top diameter, and the sidepiece of dynamic iron core is provided with sidepiece pore, the inlet chamber in the middle part of sidepiece pore connection air through hole and nozzle.Not only opening force is little for the design, firing current is low, and fast response time, long service life.
Description
Technical field
The utility model is related to a kind of fuel injection magnetic valve, more particularly to a kind of through type binary channels fuel gas injection valve,
It is particularly applicable to reduce electromagnetism valve opening force, reduce driving current.
Background technology
Fuel gas injection valve is a strength member in natural gas engine, plays fuel adjusting effect, electric-control system
In good time under control, appropriate supply engine fuel.Fuel gas injection valve species in the market is more, enters outgoing direction by combustion gas
It is divided into through type and side direction type, two kinds suitable in market share amount；Needle valve, plunger type, ball-valve type etc. are divided into according to structure,
Plunger type mostly is on market, and reliability is better than other.
Chinese patent application publication No. is CN101907044A, and Shen Qing Publication day is the patent of invention on December 8th, 2010
A kind of high-speed fuel gas injection electromagnetic valve for vehicles is disclosed, a part is packed into the fixed core of magnetic conduction end cap, the outer end one of fixed core
The fixing shell with binding post in end, the other end is valve seat；One end of fixed core is connected with gas feed, and other end connection is dynamic
Iron core, inner hollow, inwall both sides have copper pipe；The coil rack of fixed core is fixed on, is wound with thereon and is wrapped up by coil case
Solenoid；Between the endoporus and the recess of dynamic iron core of fixed core, the other end of dynamic iron core is fixed with sealing to spring
Piece, the outer end of dynamic iron core is valve seat, and the end of valve seat is provided with nozzle.Although the invention can optimize magnetic circuit, reduce driving electricity
Stream, but which still suffers from following defect：
The gas circulation area of the invention is determined by the range of dynamic iron core, as the range of dynamic iron core is less,
Cause the gas circulation area of magnetic valve little；When closed electromagnetic valve, as the compression area of dynamic iron core is larger, magnetic valve is caused
Opening force larger, so as to increase the driving current of opens solenoid valve, extend the response time of magnetic valve, shorten electromagnetism
The service life of valve.
Content of the invention
The purpose of this utility model is the problem for overcoming driving current present in prior art big, provides a kind of driving electricity
The little through type binary channels fuel gas injection valve of stream.
For realizing object above, technical solution of the present utility model is：
A kind of through type binary channels fuel gas injection valve, including the solenoid, fixed core, dynamic iron core and the spray that are coaxially disposed
Mouth, the upper/lower terminal of the solenoid are coordinated with fixed core, sealed nozzle respectively, and the nipple top is outer with dynamic iron core
Snug engagement, is provided with return spring between the dynamic iron core and fixed core；
The middle part of the nozzle offers inlet chamber, and the lower end of the nozzle is coaxially arranged with valve seat a, the valve seat a's
Lateral wall is coordinated with the madial wall sealing of nozzle, is coaxially arranged with auxiliary-seat b, the valve seat a and auxiliary-seat in the middle part of the valve seat a
Bottom compression fit of the top of b all with dynamic iron core, is formed with annular between the auxiliary-seat b upper end and the madial wall of valve seat a
Gas channel, the bottom of the auxiliary-seat b offer ventilation counterbore, offer at least two and lead on the side wall of the ventilation counterbore
Hole, the through hole connection annular air-flow path and ventilation counterbore；
The middle part of the dynamic iron core coaxially offers air through hole, and the diameter of the air through hole is less than auxiliary-seat b top
Diameter, the sidepiece of the dynamic iron core are provided with least two sidepiece pores, the sidepiece pore connection air through hole and inlet chamber.
The valve seat a is cylindrical-shaped structure, and the top of the valve seat a offers air inlet duct, and the bottom of the air inlet duct is opened
It is provided with mounting groove, the bottom of the mounting groove offers out vent hole, the bottom interference fit of the mounting groove and auxiliary-seat b,
Between the air inlet groove sidewall and auxiliary-seat b be annular air-flow path, the ventilation counterbore of the auxiliary-seat b bottom with go out vent hole
Communicate.
The range of the dynamic iron core is a diameter of d of top external circumference of L, the auxiliary-seat b, the mounting groove interior
A diameter of D, D ＞ d ＞ 4L, D-d >=4L.
The top of the valve seat a is provided with the first sealing land, and the top of the auxiliary-seat b is provided with the second sealing ring
Platform, the high setting such as top surface of the top surface of the first sealing land and the second sealing land；
The dynamic iron core bottom is fixedly connected with rubber sheet gasket, and the dynamic iron core is sealed with first respectively by rubber sheet gasket
Land, the second sealing land compression fit.
The fixed core includes interface portion, valve body cover plate and iron core portion, and the bottom of the upper interface portion passes through body cap
Plate is fixedly connected with the top in iron core portion, the top snap-fit of the valve body cover plate valve casing sheathed with solenoid outside,
The iron core portion is coordinated with the upper end insertion of solenoid, is arranged with sealing ring, iron in the iron core portion at nearly valve body cover plate
Core is coordinated with solenoid sealing by upper sealing ring；
The top of the upper interface portion offers air inlet, and iron core portion bottom offers insertion iron core portion, body cap
Plate and the transfer port of upper interface portion, the top of the transfer port are communicated with air inlet, the bottom of the transfer port and air through hole
Top communicate.
The bottom in the iron core portion is fixedly connected with rubber buffer, and the iron core portion is by rubber buffer and dynamic iron core
Top compression fit.
O-ring groove is offered on the outer wall of the upper interface portion, is provided with big O-ring in the O-ring groove.
The nozzle includes lower interface portion, valve body base plate and the nozzle head being coaxially disposed, and the bottom of the nozzle head passes through
Valve body base plate is fixedly connected with the top in lower interface portion, the bottom snap-fit of the valve body base plate and valve casing, the nozzle head
Lower end insertion with solenoid coordinates, and is arranged with lower seal, under nozzle head passes through on the nozzle head at nearly valve body base plate
Sealing ring is coordinated with solenoid sealing；
The nozzle overhead offers positioning port, and the bottom of the positioning port is communicated with the top of inlet chamber, described fixed
Position mouth is slidably matched with the upper end of dynamic iron core, and the lower end of the dynamic iron core is arranged inside inlet chamber；The bottom in the lower interface portion
Portion offers valve seat installing port, and the top of valve seat installing port is communicated with the bottom of inlet chamber, is set in the valve seat installing port
It is equipped with the side wall sealing of valve seat a, the valve seat a by valve seat insert with valve seat installing port to coordinate, the positioning port, air inlet
Chamber, valve seat installing port are all coaxially disposed with lower interface portion.
It is arranged with two snap rings on the outer wall in the lower interface portion in parallel, sets between the snap ring of lower interface portion bottom two
It is equipped with little O-ring.
Compared with prior art, the beneficial effects of the utility model are：
1st, in a kind of through type binary channels fuel gas injection valve of the utility model the top of valve seat a and auxiliary-seat b all with dynamic iron
The bottom compression fit of core, the structure of auxiliary-seat b reduce the compression area of dynamic iron core, so as to reduce the unlatching of magnetic valve
Power, reduces the firing current of magnetic valve, shortens the response time of magnetic valve, simultaneously because the subtracting of solenoid firing current
Little, the resistance heating amount of battery coil can be effectively reduced, while improving magnetic valve reliability, extends making for magnetic valve
Use the life-span.Therefore, the design firing current is little, the response time is short, long service life.
2nd, due to the stroke very little of movable iron core of electromagnetic valve in a kind of through type binary channels fuel gas injection valve of the utility model, therefore
When magnetic valve is opened, it is the annular region between dynamic iron core and valve seat a at the minimum flow area of magnetic valve, the design moves iron
The air through hole that the middle part of core opens up increased gas channels for magnetic valve, increase effectively the circulation area of magnetic valve,
The gas circulation of magnetic valve is increased, while the structure of air through hole alleviates the quality of dynamic iron core, reduces dynamic iron core pair
Valve seat a and the pressure of auxiliary-seat b, further reduce the opening force of magnetic valve, reduce firing current.Therefore, the design
The circulation area of magnetic valve is big, firing current is little.
3rd, in a kind of through type binary channels fuel gas injection valve of the utility model, the first sealing land and second seals land
Design, effectively increases the sealing property of magnetic valve, effectively improves the sealing reliability of magnetic valve, make the work of magnetic valve more
Plus it is reliable and stable.Therefore, the design good seal performance, reliability are high.
4th, in a kind of through type binary channels fuel gas injection valve of the utility model, the structure height of fixed core is integrated, plays electromagnetism
Iron core also acts the effect of connecting interface, securing cover plate and valve interior sealing while acting on, reduce the number of components of magnetic valve
Amount, reduces manufacturing cost, shortens installation time.Therefore, the design number of parts is few, low cost of manufacture, be easy to dress
Join.
5th, in a kind of through type binary channels fuel gas injection valve of the utility model, nozzle is solid between solenoid, valve casing respectively
Fixed cooperation, nozzle arrangements fix stably, the movement locus so as to ensure dynamic iron core are fixed, and improve the reliable operation of magnetic valve
Property.Therefore, the design stable performance, reliability are high.
Description of the drawings
Fig. 1 is the structural representation of the utility model magnetic valve opening.
Fig. 2 is the structural representation of the utility model closed electromagnetic valve state.
Fig. 3 is the structural representation of valve seat a in Fig. 1.
Fig. 4 is the structural representation of nozzle in Fig. 1.
In figure：Solenoid 1, valve casing 11, fixed core 2, air inlet 21, transfer port 22, upper interface portion 23, valve body cover plate
24th, iron core portion 25, O-ring groove 26, big O-ring 27, upper sealing ring 28, rubber buffer 29, dynamic iron core 3, air through hole 31, side
Portion's pore 32, rubber sheet gasket 33, valve seat a4, annular air-flow path 41, air inlet duct 42, mounting groove 43, to go out vent hole 44, first close
Seal ring platform 45, valve seat insert 46, return spring 5, auxiliary-seat b6, ventilation counterbore 61, through hole 62, second seal land 63, spray
Mouth 7, inlet chamber 71, lower interface portion 72, valve body base plate 73, nozzle head 74, snap ring 75, little O-ring 76, lower seal 77, positioning
Mouth 78, valve seat installing port 79.
Specific embodiment
The utility model is described in further detail below in conjunction with description of the drawings and specific embodiment.
Referring to Fig. 1 to Fig. 4, a kind of through type binary channels fuel gas injection valve, including be coaxially disposed solenoid 1, determine iron
Core 2, dynamic iron core 3 and nozzle 7, the upper/lower terminal of the solenoid 1 are coordinated with fixed core 2, the sealing of nozzle 7 respectively, the spray
7 top of mouth is slidably matched with the lateral wall of dynamic iron core 3, is provided with return spring 5 between the dynamic iron core 3 and fixed core 2；
The middle part of the nozzle 7 offers inlet chamber 71, and the lower end of the nozzle 7 is coaxially arranged with valve seat a4, the valve
The lateral wall of seat a4 is coordinated with the madial wall sealing of nozzle 7, is coaxially arranged with auxiliary-seat b6, the valve seat in the middle part of the valve seat a4
The madial wall of bottom compression fit of the top of a4 and auxiliary-seat b6 all with dynamic iron core 3, the auxiliary-seat b6 upper end and valve seat a4
Between be formed with annular air-flow path 41, the bottom of the auxiliary-seat b6 offers ventilation counterbore 61, the ventilation counterbore 61
At least two through holes 62 are offered on the wall of side, and the through hole 62 connects annular air-flow path 41 with ventilation counterbore 61；
The middle part of the dynamic iron core 3 coaxially offers air through hole 31, and the diameter of the air through hole 31 is less than auxiliary-seat
B6 top diameter, the sidepiece of the dynamic iron core 3 are provided with least two sidepiece pores 32, and the sidepiece pore 32 connects air inlet and leads to
Hole 31 and inlet chamber 71.
The valve seat a4 is cylindrical-shaped structure, and the top of the valve seat a4 offers air inlet duct 42, the air inlet duct 42
Bottom offers mounting groove 43, and the bottom of the mounting groove 43 offers out vent hole 44, the mounting groove 43 and auxiliary-seat b6
Bottom interference fit, between 42 side wall of the air inlet duct and auxiliary-seat b6 be annular air-flow path 41, the auxiliary-seat b6 bottom
The ventilation counterbore 61 in portion is communicated with vent hole 44 is gone out.
The range of the dynamic iron core 3 is a diameter of d of top external circumference of L, the auxiliary-seat b6, the mounting groove 43
Interior diameter be D, D ＞ d ＞ 4L, D-d >=4L.
The top of the valve seat a4 is provided with the first sealing land 45, and the top of the auxiliary-seat b6 is provided with the second sealing
Land 63, the high setting such as top surface of the top surface of the first sealing land 45 and the second sealing land 63；
3 bottom of the dynamic iron core is fixedly connected with rubber sheet gasket 33, and the dynamic iron core 3 is by rubber sheet gasket 33 respectively with the
One sealing land 45, second seals 63 compression fit of land.
The fixed core 2 includes interface portion 23, valve body cover plate 24 and iron core portion 25, and the bottom of the upper interface portion 23 leads to
The top for valve body cover plate 24 being crossed with iron core portion 25 is fixedly connected, the valve casing sheathed with 1 outside of solenoid of the valve body cover plate 24
11 top snap-fit, the iron core portion 25 are coordinated with the upper end insertion of solenoid 1, nearly body cap in the iron core portion 25
Sealing ring 28 is arranged with plate 24, and iron core portion 25 is coordinated with the sealing of solenoid 1 by upper sealing ring 28；
The top of the upper interface portion 23 offers air inlet 21, and 25 bottom of iron core portion offers insertion iron core portion
25th, the transfer port 22 of valve body cover plate 24 and upper interface portion 23, the top of the transfer port 22 are communicated with air inlet 21, the gas transmission
The bottom in hole 22 is communicated with the top of air through hole 31.
The bottom in the iron core portion 25 is fixedly connected with rubber buffer 29, and the iron core portion 25 passes through rubber buffer 29
Top compression fit with dynamic iron core 3.
O-ring groove 26 is offered on the outer wall of the upper interface portion 23, is provided with big O-ring 27 in the O-ring groove 26.
The nozzle 7 includes lower interface portion 72, valve body base plate 73 and the nozzle head 74 being coaxially disposed, the nozzle head 74
Bottom is fixedly connected with the top in lower interface portion 72 by valve body base plate 73, the bottom clamping of the valve body base plate 73 and valve casing 11
Coordinate, the nozzle head 74 is coordinated with the lower end insertion of solenoid 1, is arranged with the nozzle head 74 at nearly valve body base plate 73
Lower seal 77, nozzle head 74 are coordinated with the sealing of solenoid 1 by lower seal 77；
74 top of the nozzle head offers positioning port 78, the top phase of the bottom of the positioning port 78 and inlet chamber 71
Logical, the positioning port 78 is slidably matched with the upper end of dynamic iron core 3, and the lower end of the dynamic iron core 3 is arranged inside inlet chamber 71；Institute
The bottom for stating lower interface portion 72 offers valve seat installing port 79, the top of the valve seat installing port 79 and the bottom phase of inlet chamber 71
Logical, valve seat a4, the valve seat a4 is provided with the valve seat installing port 79 by valve seat insert 46 and valve seat installing port 79
Side wall sealing coordinates, and the positioning port 78, inlet chamber 71, valve seat installing port 79 are all coaxially disposed with lower interface portion 72.
It is arranged with two snap rings 75, the lower interface portion 72 bottom two snap ring on the outer wall in the lower interface portion 72 in parallel
Little O-ring 76 is provided between 75.
Principle of the present utility model is described as follows：Fixed core 3 and valve seat a4, auxiliary-seat b6 pressure when solenoid 1 is not powered on
Tight fit, magnetic valve are closed；There is attraction when solenoid 1 is energized between fixed core 2 and dynamic iron core 3, move
Iron core 3 overcomes 5 elastic force of return spring and gas pressure to move to fixed core 2, shape between fixed core 3 and valve seat a4, auxiliary-seat b6
Become two annular gas channels, air-flow promotes dynamic iron core 3 to accelerate to move upwards, until dynamic iron core 3 is pushed in magneticaction with fixed core 2
Tightly, 3 stop motion of dynamic iron core, magnetic valve are opened；When 1 power-off of solenoid, the attraction between dynamic iron core 3 and fixed core 2
Disappear, dynamic iron core 3 is moved to valve seat a4 direction under the effect of 5 elastic force of return spring, when fixed core 3 compresses valve seat a4 and auxiliary-seat
Closed electromagnetic valve during b6.
The course of work of the design magnetic valve is as follows：
The circulation area of the design magnetic valve is：πL（D+d）；
The opening force of the design magnetic valve is：P（D2-d2）π/4, wherein P are medium pressure；
When the sectional area of annular air-flow path 41 is more than or equal to circulation area, it is existing that annular air-flow path 41 will not produce throttling
As.Therefore,（D2-d2）π/4≥πL（D+d）Draw D-d >=4L.
Shock of the less dynamic iron core 3 of range L of dynamic iron core 3 to valve seat a4, auxiliary-seat b6 and fixed core 2 in design
Power is less, and electromagnetic valve work is more stable, while the response speed of the less magnetic valve of L is faster, can effectively lift magnetic valve performance；
The magnetic valve of the design increased a gas circuit, on the premise of enough gas circulatioies are kept, shorten dynamic iron core 3 most
Big stroke L, improves the response speed of magnetic valve.
Embodiment 1：
Referring to Fig. 1 to Fig. 4, a kind of through type binary channels fuel gas injection valve, including be coaxially disposed solenoid 1, determine iron
Core 2, dynamic iron core 3 and nozzle 7, the upper/lower terminal of the solenoid 1 are coordinated with fixed core 2, the sealing of nozzle 7 respectively, the spray
7 top of mouth is slidably matched with the lateral wall of dynamic iron core 3, is provided with return spring 5 between the dynamic iron core 3 and fixed core 2；Described
The middle part of nozzle 7 offers inlet chamber 71, and the lower end of the nozzle 7 is coaxially arranged with valve seat a4, the lateral wall of the valve seat a4
Madial wall sealing with nozzle 7 coordinates, and is coaxially arranged with auxiliary-seat b6, the valve seat a4 and auxiliary-seat b6 in the middle part of the valve seat a4
Bottom compression fit of the top all with dynamic iron core 3, be formed with ring between the auxiliary-seat b6 upper end and the madial wall of valve seat a4
Shape gas channel 41, the bottom of the auxiliary-seat b6 offer ventilation counterbore 61, offer on the side wall of the ventilation counterbore 61
At least two through holes 62, the through hole 62 connect annular air-flow path 41 with ventilation counterbore 61；The middle part of the dynamic iron core 3 is coaxial
Air through hole 31 is offered, the diameter of the air through hole 31 is less than auxiliary-seat b6 top diameter, and the sidepiece of the dynamic iron core 3 sets
At least two sidepiece pores 32 are equipped with, the sidepiece pore 32 connects air through hole 31 and inlet chamber 71；The valve seat a4 is circle
Column structure, the top of the valve seat a4 offer air inlet duct 42, and the bottom of the air inlet duct 42 offers mounting groove 43, described
The bottom of mounting groove 43 offers out vent hole 44, the bottom interference fit of the mounting groove 43 and auxiliary-seat b6, the air inlet
Between 42 side wall of groove and auxiliary-seat b6 be annular air-flow path 41, the ventilation counterbore 61 of the auxiliary-seat b6 bottom with go out vent hole
44 communicate；The top of the valve seat a4 is provided with the first sealing land 45, and the top of the auxiliary-seat b6 is provided with the second sealing
Land 63, the high setting such as top surface of the top surface of the first sealing land 45 and the second sealing land 63；The dynamic iron core 3 is most
Big stroke is a diameter of d of top external circumference of L, the auxiliary-seat b6, and the interior diameter of the mounting groove 43 is D, D ＞ d ＞ 4L,
D-d >=4L；3 bottom of the dynamic iron core is fixedly connected with rubber sheet gasket 33, the dynamic iron core 3 by rubber sheet gasket 33 respectively with
First sealing land 45, second seals 63 compression fit of land；The fixed core 2 includes interface portion 23,24 and of valve body cover plate
Iron core portion 25, the bottom of the upper interface portion 23 are fixedly connected with the top in iron core portion 25 by valve body cover plate 24, described on connect
Offer O-ring groove 26 on the outer wall of oral area 23, in the O-ring groove 26, be provided with big O-ring 27, the valve body cover plate 24 with
The top snap-fit of the outside sheathed valve casing 11 of solenoid 1, the iron core portion 25 is inserted with the upper end of solenoid 1 joins
Close, in the iron core portion 25, at nearly valve body cover plate 24, sealing ring 28 is arranged with, iron core portion 25 is by upper sealing ring 28 and electromagnetism
The sealing of coil 1 coordinates, and the bottom in the iron core portion 25 is fixedly connected with rubber buffer 29, and the iron core portion 25 is slow by rubber
Rush the top compression fit of pad 29 and dynamic iron core 3；The top of the upper interface portion 23 offers air inlet 21, the iron core portion 25
Bottom offers the transfer port 22 of insertion iron core portion 25, valve body cover plate 24 and upper interface portion 23, the top of the transfer port 22 with
Air inlet 21 is communicated, and the bottom of the transfer port 22 is communicated with the top of air through hole 31；The nozzle 7 includes to be coaxially disposed
Lower interface portion 72, valve body base plate 73 and nozzle head 74, the bottom of the nozzle head 74 is by valve body base plate 73 and lower interface portion 72
Top be fixedly connected, be arranged with two snap rings 75,72 bottom of lower interface portion on the outer wall in the lower interface portion 72 in parallel
Little O-ring 76, the bottom snap-fit of the valve body base plate 73 and valve casing 11, the nozzle head is provided between two snap rings 75
74 are coordinated with the insertion of the lower end of solenoid 1, are arranged with lower seal 77, nozzle on the nozzle head 74 at nearly valve body base plate 73
74 are coordinated with the sealing of solenoid 1 by lower seal 77；74 top of the nozzle head offers positioning port 78, the positioning
The bottom of mouth 78 is communicated with the top of inlet chamber 71, and the positioning port 78 is slidably matched with the upper end of dynamic iron core 3, the dynamic iron core
3 lower end is arranged inside inlet chamber 71；The bottom in the lower interface portion 72 offers valve seat installing port 79, and the valve seat is installed
The top of mouth 79 is communicated with the bottom of inlet chamber 71, is provided with valve seat a4, the valve seat a4 and passes through in the valve seat installing port 79
Valve seat insert 46 is coordinated with the side wall sealing of valve seat installing port 79, and the positioning port 78, inlet chamber 71, valve seat installing port 79 are equal
It is coaxially disposed with lower interface portion 72.
Claims (9)
1. a kind of through type binary channels fuel gas injection valve, including the solenoid being coaxially disposed（1）, fixed core（2）, dynamic iron core
（3）And nozzle（7）, the solenoid（1）Upper/lower terminal respectively with fixed core（2）, nozzle（7）Sealing coordinates, the spray
Mouth（7）Top and dynamic iron core（3）Lateral wall be slidably matched, the dynamic iron core（3）With fixed core（2）Between be provided with return bullet
Spring（5）, it is characterised in that：
The nozzle（7）Middle part offer inlet chamber（71）, the nozzle（7）Lower end be coaxially arranged with valve seat a（4）, institute
State valve seat a（4）Lateral wall and nozzle（7）Madial wall sealing coordinate, the valve seat a（4）Middle part is coaxially arranged with auxiliary-seat b
（6）, the valve seat a（4）With auxiliary-seat b（6）Top all and dynamic iron core（3）Bottom compression fit, the auxiliary-seat b（6）
Upper end and valve seat a（4）Madial wall between be formed with annular air-flow path（41）, the auxiliary-seat b（6）Bottom offer logical
Gas counterbore（61）, the ventilation counterbore（61）Side wall on offer at least two through holes（62）, the through hole（62）Connected ring
Shape gas channel（41）With ventilation counterbore（61）；
The dynamic iron core（3）Middle part coaxially offer air through hole（31）, the air through hole（31）Diameter less than secondary valve
Seat b（6）Top diameter, the dynamic iron core（3）Sidepiece be provided with least two sidepiece pores（32）, the sidepiece pore（32）
Connection air through hole（31）With inlet chamber（71）.
2. a kind of through type binary channels fuel gas injection valve according to claim 1, it is characterised in that：
The valve seat a（4）For cylindrical-shaped structure, the valve seat a（4）Top offer air inlet duct（42）, the air inlet duct
（42）Bottom offer mounting groove（43）, the mounting groove（43）Bottom offer out vent hole（44）, the mounting groove
（43）With auxiliary-seat b（6）Bottom interference fit, the air inlet duct（42）Side wall and auxiliary-seat b（6）Between logical for annular airflow
Road（41）, the auxiliary-seat b（6）The ventilation counterbore of bottom（61）With go out vent hole（44）Communicate.
3. a kind of through type binary channels fuel gas injection valve according to claim 2, it is characterised in that：
The dynamic iron core（3）Range be L, the auxiliary-seat b（6）The a diameter of d of top external circumference, the mounting groove
（43）Interior diameter be D, D ＞ d ＞ 4L, D-d >=4L.
4. a kind of through type binary channels fuel gas injection valve according to claim 1,2 or 3, it is characterised in that：
The valve seat a（4）Top be provided with the first sealing land（45）, the auxiliary-seat b（6）To be provided with second close at top
Seal ring platform（63）, the first sealing land（45）Top surface and second sealing land（63）The high setting such as top surface；
The dynamic iron core（3）Bottom is fixedly connected with rubber sheet gasket（33）, the dynamic iron core（3）By rubber sheet gasket（33）Respectively
With the first sealing land（45）, second sealing land（63）Compression fit.
5. a kind of through type binary channels fuel gas injection valve according to claim 4, it is characterised in that：
The fixed core（2）Including upper interface portion（23）, valve body cover plate（24）With iron core portion（25）, the upper interface portion（23）'s
Bottom passes through valve body cover plate（24）With iron core portion（25）Top be fixedly connected, the valve body cover plate（24）With solenoid（1）
Outside sheathed valve casing（11）Top snap-fit, the iron core portion（25）With solenoid（1）Upper end insertion coordinate, institute
State iron core portion（25）Upper nearly valve body cover plate（24）Place is arranged with sealing ring（28）, iron core portion（25）By upper sealing ring（28）With
Solenoid（1）Sealing coordinates；
The upper interface portion（23）Top offer air inlet（21）, the iron core portion（25）Bottom offers insertion iron core portion
（25）, valve body cover plate（24）With upper interface portion（23）Transfer port（22）, the transfer port（22）Top and air inlet（21）
Communicate, the transfer port（22）Bottom and air through hole（31）Top communicate.
6. a kind of through type binary channels fuel gas injection valve according to claim 5, it is characterised in that：
The iron core portion（25）Bottom be fixedly connected with rubber buffer（29）, the iron core portion（25）By rubber buffer
（29）With dynamic iron core（3）Top compression fit.
7. a kind of through type binary channels fuel gas injection valve according to claim 5, it is characterised in that：
The upper interface portion（23）Outer wall on offer O-ring groove（26）, the O-ring groove（26）Big O-ring is inside provided with
（27）.
8. a kind of through type binary channels fuel gas injection valve according to claim 5, it is characterised in that：
The nozzle（7）Including the lower interface portion being coaxially disposed（72）, valve body base plate（73）And nozzle head（74）, the nozzle head
（74）Bottom pass through valve body base plate（73）With lower interface portion（72）Top be fixedly connected, the valve body base plate（73）With valve casing
（11）Bottom snap-fit, the nozzle head（74）With solenoid（1）Lower end insertion coordinate, the nozzle head（74）On
Nearly valve body base plate（73）Place is arranged with lower seal（77）, nozzle head（74）By lower seal（77）With solenoid（1）Close
Envelope coordinates；
The nozzle head（74）Top offers positioning port（78）, the positioning port（78）Bottom and inlet chamber（71）Top
Communicate, the positioning port（78）With dynamic iron core（3）Upper end be slidably matched, the dynamic iron core（3）Lower end be arranged at inlet chamber
（71）Internal；The lower interface portion（72）Bottom offer valve seat installing port（79）, the valve seat installing port（79）Top
With inlet chamber（71）Bottom communicate, the valve seat installing port（79）Valve seat a is inside provided with（4）, the valve seat a（4）By valve
Seat sealing ring（46）With valve seat installing port（79）The sealing of side wall coordinate, the positioning port（78）, inlet chamber（71）, valve seat install
Mouthful（79）All with lower interface portion（72）It is coaxially disposed.
9. a kind of through type binary channels fuel gas injection valve according to claim 8, it is characterised in that：
The lower interface portion（72）Outer wall on be arranged with two snap rings in parallel（75）, the lower interface portion（72）The card of bottom two
Ring（75）Between be provided with little O-ring（76）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620810080.1U CN206000643U (en) | 2016-07-29 | 2016-07-29 | A kind of through type binary channels fuel gas injection valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620810080.1U CN206000643U (en) | 2016-07-29 | 2016-07-29 | A kind of through type binary channels fuel gas injection valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206000643U true CN206000643U (en) | 2017-03-08 |
Family
ID=58201919
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620810080.1U Withdrawn - After Issue CN206000643U (en) | 2016-07-29 | 2016-07-29 | A kind of through type binary channels fuel gas injection valve |
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| Country | Link |
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| CN (1) | CN206000643U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106089500A (en) * | 2016-07-29 | 2016-11-09 | 东风商用车有限公司 | A kind of through type dual pathways fuel gas injection valve |
| CN109812355A (en) * | 2017-11-20 | 2019-05-28 | 东方技术股份有限公司 | Compressed natural gas injector |
| WO2021035690A1 (en) * | 2019-08-30 | 2021-03-04 | 深圳市大疆创新科技有限公司 | Onboard spray head structure of unmanned aerial vehicle for agricultural plant protection, spray system and unmanned aerial vehicle |
| CN114233528A (en) * | 2021-12-01 | 2022-03-25 | 漫索(苏州)控制***有限公司 | Gas nozzle |
-
2016
- 2016-07-29 CN CN201620810080.1U patent/CN206000643U/en not_active Withdrawn - After Issue
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106089500A (en) * | 2016-07-29 | 2016-11-09 | 东风商用车有限公司 | A kind of through type dual pathways fuel gas injection valve |
| CN109812355A (en) * | 2017-11-20 | 2019-05-28 | 东方技术股份有限公司 | Compressed natural gas injector |
| WO2021035690A1 (en) * | 2019-08-30 | 2021-03-04 | 深圳市大疆创新科技有限公司 | Onboard spray head structure of unmanned aerial vehicle for agricultural plant protection, spray system and unmanned aerial vehicle |
| CN114233528A (en) * | 2021-12-01 | 2022-03-25 | 漫索(苏州)控制***有限公司 | Gas nozzle |
| CN114233528B (en) * | 2021-12-01 | 2024-01-05 | 漫索(苏州)控制***有限公司 | Gas nozzle |
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