CN208518803U - A kind of New-type fuel injector - Google Patents
A kind of New-type fuel injector Download PDFInfo
- Publication number
- CN208518803U CN208518803U CN201820958350.2U CN201820958350U CN208518803U CN 208518803 U CN208518803 U CN 208518803U CN 201820958350 U CN201820958350 U CN 201820958350U CN 208518803 U CN208518803 U CN 208518803U
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- China
- Prior art keywords
- spray
- nozzle
- counterbore
- iron core
- dynamic iron
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Abstract
The utility model relates to a kind of New-type fuel injectors, the fuel injector includes shell, oil inlet pipe, electromagnetic assembly and ejection assemblies, ejection assemblies include spring, fixed core, dynamic iron core, magnetism-isolating loop, valve rod and oil spout seat, magnetism-isolating loop tight is set to outside fixed core and dynamic iron core junction, magnetism-isolating loop with a thickness of≤0.3mm；It is provided with a counterbore at the nozzle of oil spout seat, is fitted closely on counterbore and is provided with spray piece, counterbore and spray piece form closed chamber, and spray on piece is provided with spray orifice, and spray orifice is set for the eccentric relative to nozzle.The utility model has atomizing effect good, abundant feature of burning.
Description
Technical field
The utility model relates to auto parts field more particularly to a kind of New-type fuel injectors.
Background technique
Automobile generallys use electric-controlled fuel injector (being commonly called as electric injector) fuel feeding at present.Engine electric-controlled unit ECU
(electronic control unit) is according to engine intake airflow, intake pipe absolute pressure, revolving speed, intake air temperature, solar term
The parameters such as door position, control the on-off of electric injector, fuel oil are sprayed into cylinder.
The fuel injector being mounted in twin-inlet, it usually needs certain spray angle, existing mode be by spray orifice into
Line tilt setting, such mode increase the difficulty of processing of spray orifice.
Utility model content
In view of the above problems, the utility model devises a kind of New-type fuel injector, solve the problems, such as that spray orifice difficulty of processing is big.
The technical solution of the utility model is: the fuel injector includes shell, oil inlet pipe, electromagnetic assembly and ejection assemblies, spray
Penetrating component includes spring, fixed core, dynamic iron core, magnetism-isolating loop, valve rod and oil spout seat, magnetism-isolating loop tight be set to fixed core and
Outside dynamic iron core junction, magnetism-isolating loop with a thickness of≤0.3mm；A counterbore is provided at the nozzle of oil spout seat, counterbore tightens closely connected
Conjunction is provided with spray piece, and counterbore and spray piece form closed chamber, and spray on piece is provided with spray orifice, and spray orifice is set relative to nozzle for bias
It sets.
Preferably, dynamic iron core is wholely set with valve rod, spring is set to dynamic iron core upper end and providing keeps dynamic iron core downward
The elastic force of movement tendency.
Preferably, valve rod bottom is fixedly connected with ball valve, ball valve is close to nozzle and is arranged and controls the opening and closing of nozzle.
Preferably, the quantity at least two of spray orifice.
Preferably, the linear distance between the opposite spray centrosymmetric spray orifice of piece of every two is 2.7-3.5mm.
Preferably, the diameter of counterbore is slightly larger than the diameter of nozzle.
The beneficial effects of the utility model are: compared with prior art, the utility model first sets the thickness of magnetism-isolating loop
It counts into≤0.3mm, increases magnetic resistance, when unlatching, electromagnetic force can be enhanced, increase the control force being opened and closed to ball valve；Secondly piece will be sprayed
On spray orifice be set as eccentric structure, oil liquid enters in counterbore after ejecting from nozzle, turbulent flow is carried out, then again from bias
It is sprayed in the spray orifice of setting, to still allow fuel injector to have certain oil spout angle in the case where spray orifice is vertical with spray piece
Degree, spray orifice difficulty of processing vertical with spray piece is low, and can also obtain oil spout angle.
Detailed description of the invention
Fig. 1 is the cross-sectional view of the utility model.
Fig. 2 is the partial enlarged view in Fig. 1 at A.
Fig. 3 is the schematic diagram of the utility model oil liquid injection direction.
Fig. 4 is schematic diagram when the utility model sprays.
1 oil inlet pipe in figure, 2 electromagnetic assemblies, 3 shells, 4 springs, 5 fixed cores, 6 magnetism-isolating loops, 7 dynamic iron cores, 8 valve rods, 9 oil spouts
Seat, 10 ball valves, 11 nozzles, 12 counterbores, 13 spray pieces, 14 spray orifices.
Specific embodiment
The utility model is described in further detail with reference to the accompanying drawings and examples.
As shown in Figs 1-4, the fuel injector of the utility model includes shell 3, oil inlet pipe 1, electromagnetic assembly 2 and ejection assemblies,
Ejection assemblies include spring 4, fixed core 5, dynamic iron core 7, magnetism-isolating loop 6, valve rod 8 and oil spout seat 9, the setting of 6 tight of magnetism-isolating loop
In outside 7 junction of fixed core 5 and dynamic iron core, magnetism-isolating loop 6 with a thickness of≤0.3mm；One heavy 12 is provided at the nozzle of oil spout seat 9
Hole, counterbore 12 and spray piece 13 form closed chamber, and the diameter of counterbore 12 is slightly larger than the diameter of nozzle 11.
It is fitted closely on counterbore 12 and is provided with spray piece 13, sprayed and be provided with spray orifice 14 on piece 13, the opposite spray piece center of every two
Linear distance between symmetrical spray orifice is 2.7-3.5mm.Spray orifice 14 is set for the eccentric relative to nozzle, will spray the spray on piece 13
Hole is set as eccentric structure, and oil liquid enters in counterbore after ejecting from nozzle, turbulent flow is carried out, then again from eccentric setting
It is sprayed in spray orifice, compared to the spray orifice being arranged concentrically with nozzle, so that the jeting effect of tilt angle is obtained, spray angle range
It is tilted between 0-30 degree for opposite vertical direction.
8 bottom of valve rod is fixedly connected with ball valve 10, and ball valve 10 is close to the opening and closing that nozzle 11 is arranged and controls nozzle 11.Dynamic iron
Core 7 is wholely set with valve rod 8, and spring 4 is set to dynamic iron core upper end and provides the elastic force for making dynamic iron core move downward trend, is powered
When, fixed core up attracts dynamic iron core, so that dynamic iron core drives valve rod and ball valve to move upwards, nozzle is opened, and is sprayed.
When power-off, ball valve is acted on downwards by the elastic force of spring, so that nozzle is closed.
The spray orifice of multiple bias is arranged in the quantity at least two of spray orifice, increases the amount of injection.
Above are merely preferred embodiments of the utility model, for those skilled in the art, exist
Under the premise of not departing from the utility model principle, several improvement can also be made, these improvement also should be regarded as the utility model
Protection scope.
Claims (5)
1. a kind of New-type fuel injector, including shell, oil inlet pipe, electromagnetic assembly and ejection assemblies, it is characterised in that the injection group
Part includes spring, fixed core, dynamic iron core, magnetism-isolating loop, valve rod and oil spout seat, the magnetism-isolating loop tight be set to fixed core and
Outside dynamic iron core junction, the magnetism-isolating loop with a thickness of≤0.3mm；A counterbore, counterbore are provided at the nozzle of the oil spout seat
On fit closely and be provided with spray piece, counterbore and spray piece form closed chamber, and the spray on piece is provided with spray orifice, the spray orifice phase
Nozzle is set for the eccentric.
2. New-type fuel injector according to claim 1, it is characterised in that the dynamic iron core is wholely set with valve rod, and spring is set
It is placed in dynamic iron core upper end and the elastic force for making dynamic iron core move downward trend is provided.
3. New-type fuel injector according to claim 1, it is characterised in that the valve rod bottom is fixedly connected with ball valve, ball valve
It is close to nozzle to be arranged and control the opening and closing of nozzle.
4. New-type fuel injector according to claim 1, it is characterised in that the quantity at least two of the spray orifice.
5. New-type fuel injector according to claim 1, it is characterised in that the diameter of the counterbore is slightly larger than the diameter of nozzle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820958350.2U CN208518803U (en) | 2018-06-21 | 2018-06-21 | A kind of New-type fuel injector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820958350.2U CN208518803U (en) | 2018-06-21 | 2018-06-21 | A kind of New-type fuel injector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208518803U true CN208518803U (en) | 2019-02-19 |
Family
ID=65326192
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820958350.2U Active CN208518803U (en) | 2018-06-21 | 2018-06-21 | A kind of New-type fuel injector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208518803U (en) |
-
2018
- 2018-06-21 CN CN201820958350.2U patent/CN208518803U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |