CN104847555B - A kind of fuel injector for improving electromagnetic actuator efficiency - Google Patents
A kind of fuel injector for improving electromagnetic actuator efficiency Download PDFInfo
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- CN104847555B CN104847555B CN201510167428.XA CN201510167428A CN104847555B CN 104847555 B CN104847555 B CN 104847555B CN 201510167428 A CN201510167428 A CN 201510167428A CN 104847555 B CN104847555 B CN 104847555B
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Abstract
This application discloses a kind of fuel injector for improving electromagnetic actuator efficiency, including oil injector body, core assembly, armature, adjustment part, valve seat, wherein, oil injector body is cylindrical cavity structure, and location and installation groove is offered on the cavity curved inner wall of the oil injector body；A pair of lugs for coordinating installation with location and installation groove are offered on core assembly；Adjustment part includes the adjustment boss for coordinating installation with location and installation groove.The fuel injector for improving electromagnetic actuator efficiency, for one kind of installing type electromagnetic actuator from lower to upper, adapt to sinkage type structure requirement, space availability ratio can be improved to greatest extent, improve the electromagnetism utilization rate of electromagnetic actuator, so that electromagnetic actuator minimizes, so as to improve the ability to work of fuel injector electromagnetic actuator under high pressures.
Description
Technical field
The application is related to field of internal combustion engine, particularly a kind of fuel injector for improving electromagnetic actuator efficiency.
Background technology
For co-rail diesel engine, in order to provide more preferable atomization, and the demand of the Injection strategy flexibly controlled is realized,
It is required that lifting common-rail injector injection pressure, while improve the response speed of fuel injector and improve multi-injection ability.
A kind of implementation method of tendency is at present：It is real as far as possible so that electromagnetic actuator is close proximity to nozzle head
Existing electromagnetic actuator sinks, and shortens needle-valve length, improves the response speed under high injection pressure.And with electromagnetic actuator
Heavy, oil injector body diameter is less and less, and the installing space of electromagnetic actuator is very small, and the requirement simultaneously to electromagnetic force is higher
（Equally use ball valve, boost in pressure）, and for electromagnetic actuator, generally required from bottom using sunk type and up pacified
Dress, this positioning and assembling to electromagnetic actuator propose requirements at the higher level.
Scheme present in prior art, the magnetic flux area external diameter of electromagnetic actuator iron core are respectively less than the straight of ferromagnetic element
Footpath, it is impossible to space is fully utilized, the electromagnetic force of electromagnetic actuator is less than normal.In order to adapt to super-pressure of future generation（More than 220MPa）Altogether
The requirement of rail system, the solution that presently, there are, started with from control valve arrangement mostly（Such as using flat valve, balanced valve and
Ball valve increases orifice plate cone angle and reduces sphere diameter）, reduce the requirement to magnetic valve, but the processing so to control valve propose it is higher
It is required that high processing costs.
The content of the invention
The application technical problems to be solved are to be directed to above-mentioned the deficiencies in the prior art, and provide a kind of electromagnetism that improves and hold
The fuel injector of row device efficiency, fuel injector described herein can improve space availability ratio to greatest extent, lift electromagnetic actuator
Efficiency so that electromagnetic actuator is adapted to higher pressure（>220MPa）, the requirement to injector control valve can be reduced.
In order to solve the above technical problems, the technical scheme that the application uses is：
A kind of fuel injector for improving electromagnetic actuator efficiency, including oil injector body, core assembly, armature, adjustment part, valve
Seat, wherein, there is a cylindrical cavity, the cavity is magnetic valve mounting hole, and magnetic valve mounting hole is interior certainly inside oil injector body
Core assembly, armature, valve seat are set gradually under above, adjustment part is sheathed on the outside of armature, and is located at core assembly and valve seat
Between, location and installation groove is offered on the inwall of the oil injector body cavity, offers on core assembly and coordinates with location and installation
The lug of installation, adjustment part include the adjustment boss for coordinating installation with location and installation groove.
Upper stopper is provided with above the core assembly, leaf spring is provided between upper stopper and oil injector body.
A kind of fuel injector of described raising electromagnetic actuator efficiency, in addition to magnetic valve spring, spring base and coil, institute
State and spring eye is offered inside core assembly, spring base is provided with spring eye, magnetic valve spring is installed on spring base；It is described
The coil mounting groove for installing coil is further opened with core assembly, on the outside of spring eye.
Valve is run through in a kind of fuel injector of described raising electromagnetic actuator efficiency, in addition to armature lever, one end of armature lever
Seat and armature, insert in spring eye, adjustment ring is set between armature and armature lever.
Damping spring is set between the armature and valve seat.
The location and installation groove is dovetail groove.
The fuel injector for the raising electromagnetic actuator efficiency that the application provides has a significant effect：
1st, the herein described fuel injector for improving electromagnetic actuator efficiency, for the one of installing type electromagnetic actuator from lower to upper
Kind, sinkage type structure requirement is adapted to, space availability ratio can be improved to greatest extent, improve the electromagnetism utilization rate of electromagnetic actuator,
So that electromagnetic actuator minimizes, so as to improve the ability to work of fuel injector electromagnetic actuator under high pressures so that electromagnetism
Actuator is adapted to higher pressure（>220MPa）, reduce the requirement to injector control valve.
2nd, the herein described fuel injector for improving electromagnetic actuator efficiency, manufacture craft is simple, and operability is high, is produced into
This is low, economical and practical.
3rd, the herein described fuel injector for improving electromagnetic actuator efficiency, it is compact-sized, it is easy to use, securely and reliably.
Brief description of the drawings
, below will be to embodiment or existing in order to illustrate more clearly of the embodiment of the present application or technical scheme of the prior art
There is the required accompanying drawing used in technology description to be briefly described, it should be apparent that, drawings in the following description are only this
Some embodiments of application, for those of ordinary skill in the art, on the premise of not paying creative work, can be with
Other accompanying drawings are obtained according to these accompanying drawings.
Fig. 1 shows the structure of herein described fuel injector；
Fig. 2 shows the structure that location and installation groove is opened up on oil injector body；
Fig. 3 shows the plan structure of core assembly；
Fig. 4 shows B-B direction sectional view in Fig. 3；
Fig. 5 shows a kind of example structure of adjustment boss；
Fig. 6 shows in Fig. 5 C-C to a kind of example structure of sectional view, i.e. adjustment part；
Fig. 7 shows the structure that dovetail groove is opened up on oil injector body；
Fig. 8 shows another example structure of adjustment part；
Fig. 9 shows adjustment boss another kind example structure；
Wherein have：2. oil injector body；3. core assembly；4. coil；5. armature；6. adjustment part；7. valve seat；8. armature lever；
9. upper stopper；10. leaf spring；11. spring base；12. adjustment ring；13. damp spring；14. magnetic valve spring；2a. magnetic valve mounting holes；
2b. high-pressure oil ducts；2c. location and installation grooves；The inwall of 2d. magnetic valve mounting holes；3a. lugs；3b. spring eyes；3c. iron core groups
The maximum outside diameter of part；3d. coil mounting grooves；6a. adjusts boss；6b. annulus；α is the angle of dovetail groove on oil injector body；β is
The angle of dovetail groove on adjustment part.
Embodiment
To make the purpose of the application and technical scheme clearer, the skill below in conjunction with the embodiment of the present application to the application
Art scheme is clearly and completely described.Obviously, described embodiment is the part of the embodiment of the application, rather than entirely
The embodiment in portion.Based on described embodiments herein, those of ordinary skill in the art are before without creative work
The every other embodiment obtained is put, belongs to the scope of the application protection.
As shown in figure 1, magnetic valve axially position, the top half of oil injector body 2 is illustrate only in Fig. 1.Magnetic valve top
Downward active force is provided by leaf spring 10, the lower surface of valve seat 7 and the lower surface of oil injector body 2 are in same level, and by under
Portion's oil injector body 2 it is spacing.
As shown in figure 1, a kind of fuel injector for improving electromagnetic actuator efficiency, including oil injector body 2, core assembly 3, armature
5th, adjustment part 6, valve seat 7, wherein, the inside of oil injector body 2 has a cylindrical cavity, and the cavity is magnetic valve mounting hole 2a,
Core assembly 3, armature 5, valve seat 7 are set gradually from top to bottom in magnetic valve mounting hole 2a, and adjustment part 6 is sheathed on armature 5
Outside, and between core assembly 3 and valve seat 7.
As shown in Fig. 2 location and installation groove 2c is offered on the inwall of the oil injector body 2；Height is also opened up on oil injector body 2
The inwall for pressing oil road 2b magnetic valve mounting holes 2a is 2d.
As shown in Figure 3,4, the lug 3a for coordinating installation with the location and installation groove 2c is offered on the core assembly 3,
The spring eye 3b for installing magnetic valve spring 14 and the coil mounting groove for installing coil 4 are further opened with core assembly 3
3d, spring eye 3b inside set spring base 11, and the maximum outside diameter of core assembly 3 is 3c.The maximum outside diameter 3c of core assembly 3 and electricity
Magnet valve mounting hole 2a inwall 2d coordinates, and fit clearance is less than 10 μm.
As shown in Figure 5,6, location and installation groove 2c described herein one embodiment is：The location and installation groove 2c is
Common rectangle mounting groove, the adjustment part 6 are the loop configuration with boss, including annulus 6b and with location and installation groove 2c
The adjustment boss 6a of installation, adjustment boss 6a is coordinated highly to be more than annulus 6b height, and the height being higher by is more than the outside of armature 5
Thickness.Annulus 6b external diameter coordinates with magnetic valve mounting hole 2a inwall 2d, and fit clearance is less than 100 μm.
As shown in fig. 7, location and installation groove 2c described herein another embodiment is：The location and installation groove 2c is
Dovetail groove, α angles are the angle more than 0 degree in figure.
Correspondingly, as shown in Figure 8,9, the adjustment boss 6a of adjustment part 6 will also use the form of dovetail, will adjustment during assembling
Boss 6a is stuck in oil injector body 2.Adjustment part 6 can still use the form shown in Fig. 6, can also use the shape of two pieces of adjustment blocks
Formula.
The top of herein described core assembly 3 sets upper stopper 9, between upper stopper 9 and magnetic valve mounting hole 2a tops
Leaf spring 10 is set.
A kind of fuel injector for improving electromagnetic actuator efficiency described herein, in addition to armature lever 8, the one of armature lever 8
End is stretched into spring eye 3b through valve seat 7, armature 5, and adjustment ring 12 is set between armature 5 and armature lever 8.
Damping spring 13 is set between herein described armature 5 and valve seat 7.
The top of the application core assembly 3 is connected to valve seat 7, adjustment part by the downward power of leaf spring 10, lower end by adjustment part 6
6 are connected by adjusting boss 6a with the lug 3a of core assembly 3, advantage of this is that, magnetic valve mounting hole 2a is reserved to rank
Iron 5, can do armature 5 is bigger, so as to improve space availability ratio, lifts electromagnetic actuator efficiency；The space of armature 5
Adjusted by the height of adjustment part 6, the end face for adjusting boss 6a is polished, ensure the depth of parallelism.
The application by the way of the processing groove on oil injector body 2, by groove realized by the axially position of core assembly 3,
Improve the space availability ratio of electromagnetic actuator.
Those skilled in the art of the present technique are appreciated that unless otherwise defined, all terms used herein（Including technology art
Language and scientific terminology）With the general understanding identical meaning with the those of ordinary skill in the application art.Should also
Understand, those terms defined in such as general dictionary, which should be understood that, to be had and the meaning in the context of prior art
The consistent meaning of justice, and unless defined as here, will not be with idealizing or the implication of overly formal be explained.
The implication of "and/or" described herein refers to that the simultaneous situation of respective individualism or both is wrapped
Including including.
The implication of " inside and outside " described herein referred to relative to equipment itself, the side inside sensing equipment
To be interior, on the contrary is outer.
When the implication of " left and right " described herein refers to reader's face accompanying drawing, the left side of reader is a left side,
The right of reader is the right side.
The implication of " connection " described herein can be between part to be directly connected to can also pass through between part
Other parts are indirectly connected with.
It is complete by above-mentioned description, relevant staff using the above-mentioned desirable embodiment according to the application as enlightenment
Various changes and amendments can be carried out in the range of without departing from this item application technological thought entirely.The technology of this item application
Property scope is not limited to the content on specification, it is necessary to determines its technical scope according to right.
Claims (2)
- A kind of 1. fuel injector for improving electromagnetic actuator efficiency, for one kind of installing type electromagnetic actuator from lower to upper, including spray Oily body（2）, core assembly（3）, armature（5）, adjustment part（6）, valve seat（7）, wherein, oil injector body（2）Inside has one Cylindrical cavity, the cavity are magnetic valve mounting hole（2a）, magnetic valve mounting hole（2a）Iron core group is inside set gradually from top to bottom Part（3）, armature（5）, valve seat（7）, adjustment part（6）It is sheathed on armature（5）Outside, and be located at core assembly（3）With valve seat（7） Between, it is characterised in that the oil injector body（2）Location and installation groove is offered on the inwall of cavity（2c）, core assembly（3）On Offer and location and installation groove（2c）Coordinate the lug of installation（3a）, the adjustment part（6）For the loop configuration with boss, bag Include annulus（6b）And with location and installation groove（2c）Coordinate the adjustment boss of installation（6a）, adjust boss（6a）Highly it is more than annulus （6b）Highly, and the height that is higher by is more than armature（5）The thickness in outside；The core assembly（3）Top is provided with upper stopper （9）, upper stopper（9）With oil injector body（2）Between be provided with leaf spring（10）；The armature（5）With valve seat（7）Between set damping Spring（13）；Also include magnetic valve spring（14）, spring base（11）And coil（4）, the core assembly（3）Inside offers spring eye （3b）, spring eye（3b）Inside it is provided with spring base（11）, magnetic valve spring（14）It is installed on spring base（11）On；The iron core group Part（3）Above, positioned at spring eye（3b）Outside be further opened be used for coil is installed（4）Coil mounting groove（3d）；Also include armature lever（8）, armature lever（8）One end run through valve seat（7）And armature（5）, insert spring eye（3b）In, armature （5）With armature lever（8）Between adjustment ring is set（12）.
- A kind of 2. fuel injector for improving electromagnetic actuator efficiency as claimed in claim 1, it is characterised in that the location and installation Groove（2c）For dovetail groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510167428.XA CN104847555B (en) | 2015-04-09 | 2015-04-09 | A kind of fuel injector for improving electromagnetic actuator efficiency |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510167428.XA CN104847555B (en) | 2015-04-09 | 2015-04-09 | A kind of fuel injector for improving electromagnetic actuator efficiency |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104847555A CN104847555A (en) | 2015-08-19 |
| CN104847555B true CN104847555B (en) | 2018-02-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510167428.XA Active CN104847555B (en) | 2015-04-09 | 2015-04-09 | A kind of fuel injector for improving electromagnetic actuator efficiency |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105257445B (en) * | 2015-10-14 | 2018-08-24 | 中国第一汽车股份有限公司无锡油泵油嘴研究所 | A kind of injector |
| CN106050498B (en) * | 2016-05-27 | 2018-07-24 | 中国第一汽车股份有限公司无锡油泵油嘴研究所 | A kind of solenoid valve sunk type fuel injector |
| JP6827535B2 (en) * | 2017-05-23 | 2021-02-10 | 三菱電機株式会社 | Injector |
| RU2731155C1 (en) * | 2019-07-05 | 2020-08-31 | федеральное государственное бюджетное образовательное учреждение высшего образования "Московский политехнический университет" (Московский Политех) | Electrically-hydraulic control nozzle |
| CN114635819B (en) * | 2022-03-09 | 2022-12-13 | 哈尔滨工程大学 | High-pressure common rail oil injector high-speed electromagnetic valve capable of realizing stable multiple injection |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1773098A (en) * | 2005-07-25 | 2006-05-17 | 无锡油泵油嘴研究所 | Co-rail oil injection system electric control oil injector |
| CN101253326A (en) * | 2005-08-03 | 2008-08-27 | 卡特彼勒公司 | Device for avoidance of spark damage on valve members |
| CN103498743A (en) * | 2013-10-23 | 2014-01-08 | 重庆红江机械有限责任公司 | Control valve of high-pressure common rail electric fuel injector |
| CN203548027U (en) * | 2013-10-23 | 2014-04-16 | 重庆红江机械有限责任公司 | Control valve for common rail system |
-
2015
- 2015-04-09 CN CN201510167428.XA patent/CN104847555B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1773098A (en) * | 2005-07-25 | 2006-05-17 | 无锡油泵油嘴研究所 | Co-rail oil injection system electric control oil injector |
| CN101253326A (en) * | 2005-08-03 | 2008-08-27 | 卡特彼勒公司 | Device for avoidance of spark damage on valve members |
| CN103498743A (en) * | 2013-10-23 | 2014-01-08 | 重庆红江机械有限责任公司 | Control valve of high-pressure common rail electric fuel injector |
| CN203548027U (en) * | 2013-10-23 | 2014-04-16 | 重庆红江机械有限责任公司 | Control valve for common rail system |
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| Publication number | Publication date |
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| CN104847555A (en) | 2015-08-19 |
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