CN207348996U - A kind of common-rail injector solenoid valve - Google Patents
A kind of common-rail injector solenoid valve Download PDFInfo
- Publication number
- CN207348996U CN207348996U CN201721228520.3U CN201721228520U CN207348996U CN 207348996 U CN207348996 U CN 207348996U CN 201721228520 U CN201721228520 U CN 201721228520U CN 207348996 U CN207348996 U CN 207348996U
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- CN
- China
- Prior art keywords
- gasket
- needle
- solenoid valve
- common
- iron core
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model discloses a kind of common-rail injector solenoid valve,Including common rail pipe,Coil,Slide,Oil inlet pipe,Needle,Atomizer,Oil return pipe,Iron core,Pressing plate,Piston rod,Oil inlet cavity,Second gasket and electromagnetism valve chest,It is using common rail pipe that the generation of fuel-injection pressure and course of injection is completely separate from each other,Reduce damage of the fuel-injection pressure to solenoid valve,Reduce the loss of solenoid valve,Stablize needle movement using pressing plate and slide,Position is moved it to fix,It ensure that the spray angle of fuel oil,Make to contact between piston rod and solenoid valve inner walls using the first gasket close,Fuel oil is avoided to infilter iron core,Influence the use of solenoid valve,Make needle sealing close accurate using the second gasket,The present apparatus can be precisely controlled the sealing of needle,Stablize needle moving direction,And sealing is close,Effectively fuel oil can be avoided to stretch into iron core,Improve the service life of solenoid valve,Reduce cost.
Description
Technical field
A kind of solenoid valve is the utility model is related to, is specifically a kind of common-rail injector solenoid valve.
Background technology
Solenoid valve (Electromagnetic valve) is electromagnetically controlled industrial equipment, is for controlling fluid
Automatic foundamental element, belongs to actuator, however it is not limited to hydraulic pressure, pneumatic.In industrial control system adjust medium direction,
Flow, speed and other parameters.Solenoid valve can coordinate different circuits to realize expected control, and the precision that controls and
Flexibility can ensure.Solenoid valve has many kinds, and different solenoid valves plays a role in the diverse location of control system, most often
It is check valve, safety valve, directional control valve, speed-regulating valve etc..
Fuel injector is a kind of very high accurate device of machining accuracy, it is desirable to which its dynamic flow range is big, anti-clogging and anti-
Pollution capacity is strong and atomization is good.The operation principle of fuel injector is to receive the fuel injection pulse signal that ECU is sent, accurate control
Fuel injection amount processed.The fuel injector magnetic system needle moving direction used on the market is unstable, and easily produces permeability phenomenon, shadow
The service life of solenoid valve is rung, increases cost.
Utility model content
The purpose of this utility model is to provide a kind of common-rail injector solenoid valve, to solve to propose in above-mentioned background technology
The problem of.
To achieve the above object, the utility model provides following technical solution：
A kind of common-rail injector solenoid valve, including common rail pipe, coil, slide, oil inlet pipe, needle, atomizer, oil return pipe,
Iron core, pressing plate, piston rod, the first gasket, oil inlet cavity, the second gasket and electromagnetism valve chest, electromagnetism valve chest is in
Annular groove is offered on the inner wall of portion position, slide is installed inside the annular groove, pressing plate both ends are consolidated with sliding block respectively
It is scheduled on slide, pressing plate is cylindrical, and one Middle face of pressing plate is connected with iron core, and iron core is cylindrical, and winding is fixed on iron core surface
There is coil, connected in the middle part of pressing plate another side with piston rod one end, piston rod is cylindrical, and one layer first of piston rod surrounding parcel is close
Solenoid valve inner walls are close in packing, the outer surface of the first gasket, and the piston rod other end is connected with needle one end, needle one end
The cylindrical other end is in cone-shaped, and one layer of second gasket is set at needle the other end face, and the diameter of the second gasket is big
Diameter at needle the other end face, the second gasket face the atomizer position set in the middle part of solenoid valve shell one end end face
Put, the transverse central axis of the iron core, the transverse central axis of pressing plate, the transversal centerline axis of piston rod, the transverse central axis of needle
Overlap with the transverse central axis of atomizer, oil inlet cavity, electromagnetism valve chest are formed between needle and solenoid valve inner walls
Common rail pipe is provided with beside the top surface of one end, common rail pipe is connected with oil inlet pipe one end, and the oil inlet pipe other end is connected with oil inlet cavity, into
Oil pipe offers circular through hole close to common rail pipe one end, and the circular through hole is connected with oil return pipe one end, and the oil return pipe other end is worn
Electromagnetism valve chest is crossed to stretch into inside electromagnetism valve chest.
As further program of the utility model：First gasket is by lactoprene and silicon rubber system
Into.
As further program of the utility model：In the solenoid valve inner walls and at the first gasket contact position
Smear one layer of nanometer heat radiation coating.
As the utility model further scheme：Second gasket is by natural rubber and nitrile rubber system
Into.
Compared with prior art, the beneficial effects of the utility model are：Iron core movement band dynamic pressure plate, piston rod move after energization
It is dynamic, so as to drive needle movement to carry out fuel oil injection, iron core return is powered off after the completion of injection so as to drive needle that jet blower is close
Envelope, it is using common rail pipe that the generation of fuel-injection pressure and course of injection is completely separate from each other, fuel-injection pressure is reduced to electricity
The damage of magnet valve, reduces the loss of solenoid valve, adds the service life of solenoid valve, reduces cost, economize on resources, utilizes pressure
Plate and slide stablize needle movement, move it position and fix, ensure that the spray angle of fuel oil, avoid its spluttering, utilize
First gasket makes to contact closely between piston rod and solenoid valve inner walls, avoids fuel oil from infiltering iron core, influences solenoid valve
Use, make needle sealing close accurate using the second gasket, the present apparatus can be precisely controlled the sealing of needle, move needle
Direction is stablized, and is sealed closely, effectively fuel oil can be avoided to stretch into iron core, be improved the service life of solenoid valve, reduce cost.
Brief description of the drawings
Fig. 1 is a kind of structure diagram of common-rail injector solenoid valve.
Fig. 2 is the structure diagram that the first gasket and the second gasket are set in a kind of common-rail injector solenoid valve.
In figure：Common rail pipe 1, coil 2, slide 3, oil inlet pipe 4, needle 5, atomizer 6, oil return pipe 7, iron core 8, pressing plate 9, work
Stopper rod 10, the first gasket 11, oil inlet cavity 12, the second gasket 13 and electromagnetism valve chest 14.
Embodiment
The following is a combination of the drawings in the embodiments of the present utility model, and the technical scheme in the embodiment of the utility model is carried out
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are without making creative work
All other embodiments obtained, shall fall within the protection scope of the present invention.
Please refer to Fig.1~2, in the utility model embodiment, a kind of common-rail injector solenoid valve, including common rail pipe 1, coil
2nd, slide 3, oil inlet pipe 4, needle 5, atomizer 6, oil return pipe 7, iron core 8, pressing plate 9, piston rod 10, the first gasket 11, oil inlet
Cavity 12, the second gasket 13 and electromagnetism valve chest 14, electromagnetism valve chest 14 offer annular on the inner wall of medium position
Groove, the annular groove the inside are provided with slide 3, and 9 both ends of pressing plate are fixed on slide 3 with sliding block respectively, and pressing plate 9 is in cylinder
Shape, 9 one Middle face of pressing plate are connected with iron core 8, and iron core 8 is cylindrical, and 8 surface of iron core is fixed and is wound with coil 2, and pressing plate 9 is another
Middle face is connected with 10 one end of piston rod, and piston rod 10 is cylindrical, and 10 surrounding of piston rod wraps up one layer of first gasket 11, institute
State the first gasket 11 to be made of lactoprene and silicon rubber, electromagnetism valve casing is close in the outer surface of the first gasket 11
14 inner wall of body, and one layer of nanometer heat radiation coating is smeared on 14 inner wall of electromagnetism valve chest and at 11 contact position of the first gasket, it is living
10 other end of stopper rod is connected with 5 one end of needle, and the cylindrical other end in 5 one end of needle is in cone-shaped, at 5 the other end face of needle
One layer of second gasket 13 is set, and second gasket 13 is made of natural rubber and nitrile rubber, the second gasket 13
Diameter be more than diameter at 5 the other end face of needle, the second gasket 13 is faced in the middle part of 14 one end end face of electromagnetism valve chest
6 position of atomizer of setting, the transverse central axis of the iron core 8, the transverse central axis of pressing plate 9, the transversal centerline of piston rod 10
The transverse central axis of axis, the transverse central axis of needle 5 and atomizer 6 overlaps, between 14 inner wall of needle 5 and electromagnetism valve chest
Oil inlet cavity 12 is formed, common rail pipe 1 is provided with beside 14 one end top surface of electromagnetism valve chest, common rail pipe 1 and 4 one end of oil inlet pipe connect
Logical, 4 other end of oil inlet pipe is connected with oil inlet cavity 12, and oil inlet pipe 4 offers circular through hole, the circle close to 1 one end of common rail pipe
Shape through hole is connected with 7 one end of oil return pipe, and 7 other end of oil return pipe stretches into the inside of electromagnetism valve chest 14 through electromagnetism valve chest 14.
The operation principle of the utility model is：Iron core movement band dynamic pressure plate, piston rod move after energization, so as to drive needle
It is mobile to carry out fuel oil injection, iron core return is powered off after the completion of injection so as to drive needle to seal jet blower, will using common rail pipe
The generation of fuel-injection pressure and course of injection are completely separate from each other, reduce damage of the fuel-injection pressure to solenoid valve, reduce
The loss of solenoid valve, adds the service life of solenoid valve, reduces cost, economize on resources, make needle using pressing plate and slide
It is mobile to stablize, move it position and fix, ensure that the spray angle of fuel oil, avoid its spluttering, make work using the first gasket
Contacted closely between stopper rod and solenoid valve inner walls, avoid fuel oil from infiltering iron core, influence the use of solenoid valve, it is close using second
Packing makes needle sealing close accurate, and the present apparatus can be precisely controlled the sealing of needle, stablize needle moving direction, and seal
Closely, effectively fuel oil can be avoided to stretch into iron core, improves the service life of solenoid valve, reduce cost.
Although the utility model is described in detail with reference to the foregoing embodiments, come for those skilled in the art
Say, it can still modify the technical solution described in foregoing embodiments, or to which part technical characteristic into
Row equivalent substitution, where within the spirit and principles of the present invention, any modification, equivalent replacement, improvement and so on should all
It is included within the scope of protection of this utility model.
Claims (5)
1. a kind of common-rail injector solenoid valve, including common rail pipe (1), coil (2), slide (3), oil inlet pipe (4), needle (5), spray
Oil nozzle (6), oil return pipe (7), iron core (8), pressing plate (9), piston rod (10), the first gasket (11), oil inlet cavity (12), second
Gasket (13) and electromagnetism valve chest (14), it is characterised in that electromagnetism valve chest (14) opens up on the inner wall of medium position
There is annular groove, slide (3) is installed inside the annular groove, pressing plate (9) both ends are fixed on slide (3) with sliding block respectively
On, pressing plate (9) is cylindrical, and (9) one Middle face of pressing plate is connected with iron core (8), and iron core (8) is cylindrical, and iron core (8) surface is solid
Surely coil (2) is wound with, is connected in the middle part of pressing plate (9) another side with piston rod (10) one end, piston rod (10) is cylindrical, piston
Bar (10) surrounding wraps up one layer of first gasket (11), and the outer surface of the first gasket (11) is close in electromagnetism valve chest (14)
Wall, piston rod (10) other end are connected with needle (5) one end, and the cylindrical other end in needle (5) one end is in cone-shaped, needle
(5) one layer of second gasket (13) is set at the other end face, and the diameter of the second gasket (13) is more than needle (5) other end end
Diameter at face, the second gasket (13) face atomizer (6) position set in the middle part of electromagnetism valve chest (14) one end end face,
Oil inlet cavity (12) is formed between needle (5) and electromagnetism valve chest (14) inner wall, is set beside the top surface of electromagnetism valve chest (14) one end
Common rail pipe (1) is equipped with, common rail pipe (1) is connected with oil inlet pipe (4) one end, and oil inlet pipe (4) other end is connected with oil inlet cavity (12),
Oil inlet pipe (4) offers circular through hole close to common rail pipe (1) one end, and the circular through hole is connected with oil return pipe (7) one end, oil return
Pipe (7) other end is stretched into inside electromagnetism valve chest (14) through electromagnetism valve chest (14).
2. a kind of common-rail injector solenoid valve according to claim 1, it is characterised in that first gasket (11) is
It is made of lactoprene and silicon rubber.
3. a kind of common-rail injector solenoid valve according to claim 1, it is characterised in that in the electromagnetism valve chest (14)
One layer of nanometer heat radiation coating is smeared on wall and at the first gasket (11) contact position.
4. a kind of common-rail injector solenoid valve according to claim 1, it is characterised in that second gasket (13) is
It is made of natural rubber and nitrile rubber.
5. a kind of common-rail injector solenoid valve according to claim 1, it is characterised in that in the transverse direction of the iron core (8)
Mandrel, the transverse central axis of pressing plate (9), the transversal centerline axis of piston rod (10), the transverse central axis and atomizer of needle (5)
(6) transverse central axis overlaps.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721228520.3U CN207348996U (en) | 2017-09-23 | 2017-09-23 | A kind of common-rail injector solenoid valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721228520.3U CN207348996U (en) | 2017-09-23 | 2017-09-23 | A kind of common-rail injector solenoid valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207348996U true CN207348996U (en) | 2018-05-11 |
Family
ID=62410599
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721228520.3U Expired - Fee Related CN207348996U (en) | 2017-09-23 | 2017-09-23 | A kind of common-rail injector solenoid valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207348996U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115279500A (en) * | 2019-12-23 | 2022-11-01 | 数通公司 | Fuel injector suitable for single fuel injection and dual fuel injection |
-
2017
- 2017-09-23 CN CN201721228520.3U patent/CN207348996U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115279500A (en) * | 2019-12-23 | 2022-11-01 | 数通公司 | Fuel injector suitable for single fuel injection and dual fuel injection |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180511 Termination date: 20210923 |