CN206206039U - A kind of control chamber middle high-pressure electric control fuel injector - Google Patents
A kind of control chamber middle high-pressure electric control fuel injector Download PDFInfo
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- CN206206039U CN206206039U CN201621274529.3U CN201621274529U CN206206039U CN 206206039 U CN206206039 U CN 206206039U CN 201621274529 U CN201621274529 U CN 201621274529U CN 206206039 U CN206206039 U CN 206206039U
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Abstract
The utility model discloses a kind of control chamber middle high-pressure electric control fuel injector, including control valve, control valve seat, oil injector body, needle-valve, needle-valve body, the control valve coordinates with control valve seat top surface, control valve seat is placed in oil injector body inner chamber, oil injector body is tightly connected with needle-valve body, needle-valve is located at control valve seat lower section, and control chamber is formed between the control valve seat bottom and needle-valve top surface, and the control chamber is located at the middle section position of oil injector body；The needle-valve uses the control plunger and spindle fit form of two-piece unit formula, or uses integral structure.The utility model can meet the requirement of fuel injection system product up-gradation, adapt to the demand that 2000bar 3000bar spray pressure, and with movement parts quality is small, fast response time, small injection pressure oscillation, gapless leakage, the features such as control valve seat sheet cavitation risk is low, production technology is good.
Description
Technical field
The utility model is related to internal combustion engine fuel injection system field, more particularly to a kind of control chamber middle
High-pressure electric control fuel injector.
Background technology
As the requirement of energy consumption and Abgasgesetz is more and more strict, internal combustion engine is to the oil spout in fuel injection system
Device proposes requirements at the higher level.It is mainly reflected in following aspect：
High-pressure injection:Design object pressure reaches more than 2000bar, and subsequent upgrade pressure is up to 3000bar.
Accurate injection：The requirement of " timing ", " quantitative " accuracy of spray is higher, and scattered error is small for injection, between multi-injection stabilization time
Every short, jetting stability is good.
Low energy losses：Avoid static leakage from losing in the design of fuel injector, reduce dynamic leakage loss, thus reduce pump
System energy consumption is reducing the energy loss of fuel injection system.
High reliability：Product be subjected to low pressure pulse fatigue failure risk higher, good airproof performance, cavitation erosion risk it is low,
Wear and tear small etc..
Other require that such as processing costs are low, have requirements at the higher level in terms of homogeneity of product, product inheritance.
Chinese patent CN200820132188.5 and CN103590949A propose a kind of fuel injector, and its primary structure is as schemed
Shown in 1, using putting form in control chamber.This kind of fuel injector extensive use on 1600bar-2000bar fuel injector products.
For 2000bar-3000bar fuel injectors, with carrying for the index requests such as injection pressure, accuracy of spray and energy loss
Height, the said goods face optimization and upgrading, are mainly in particular in：
1st, control plunger 52 is big compared with long, quality with the movement parts of spindle 58, and rigidity is low, and transient state is opened, closing velocity is subject to about
Beam.
2nd, the volume of oil pocket 53 is small in oil injector body 5, and the pressure oscillation that fuel injection processes draw is bigger than normal.
3rd, spindle 58 belongs to the face that is slidably matched with the top of needle-valve body 14, and its gap leakage flow rate can show with injection pressure rise
Writing increases, and thus causes the energy loss of fuel system big.
4th, injection pressure higher is protruded the demand of product structure reliability and sealing property.
As can be seen here, above-mentioned Chinese patent CN200820132188.5 and CN103590949A products obviously still suffer from upgrading
Optimization space.A kind of high-pressure electric control fuel injector of the requirement for meeting fuel injection system product up-gradation how is founded, makes it
The demand that 2000bar-3000bar sprays pressure is adapted to, and with movement parts quality is small, fast response time, injection pressure
The features such as fluctuation is small, gapless is revealed, control valve seat top surface cavitation erosion risk is low, production technology is good, is badly in need of as current industry
Improved target.
Utility model content
The technical problems to be solved in the utility model is to provide a kind of requirement for meeting fuel injection system product up-gradation
High-pressure electric control fuel injector, the demand that 2000bar-3000bar sprays pressure can be adapted to, and with movement parts quality
The spy such as small, fast response time, pressure oscillation is small for injection, gapless leakage, control valve seat sheet cavitation risk is low, production technology is good
Point.
In order to solve the above technical problems, the utility model is adopted the following technical scheme that：
A kind of control chamber middle high-pressure electric control fuel injector, including control valve, control valve seat, oil injector body, needle-valve, needle-valve
Body, the control valve coordinates with control valve seat top surface, and control valve seat is placed in oil injector body inner chamber, and oil injector body is sealed with needle-valve body
Connection, needle-valve is located at control valve seat lower section, and control chamber, the control chamber are formed between the control valve seat bottom and needle-valve top surface
Positioned at the middle section position of oil injector body；The needle-valve uses the control plunger and spindle fit form of two-piece unit formula, or uses
Integral structure.
Further, the distance between the control valve seat top surface and control chamber account for the 20%- of oil injector body cavity length
60%.
Further, the separate form that the control valve seat is contacted using upper-lower seal, including control upper valve seat, control valve
Lower seat；Up-thin-low-thick shoulder hole is provided with inside the control upper valve seat；The control lower valve seat is in inverted concave structure, inverted concave
Inner chamber and needle-valve top surface between form control chamber, control lower valve seat top is provided with throttle orifice, on the throttle orifice and control valve
Shoulder hole hypomere connection in seat, control lower valve seat top-side is provided with throttling pore；Shoulder hole in the control upper valve seat
Hypomere accounts for the 60%-90% of whole control valve seat length.
Further, the gap between the side wall and control valve seat lateral surface of the oil injector body inner chamber forms fuel gallery,
Sealing surface is formed between control valve seat top and oil injector body；Below the sealing surface, the needle-valve bottom conical surface and needle-valve body head match somebody with somebody
Close in the sealing intersection above section for being formed, the pressure stabilizing cavity being connected is respectively formed in addition to control chamber.
Further, on the needle-valve, with needle-valve body epimere inwall contact site using the guide section for protruding, the guiding
Section offers longitudinal fluting, and the longitudinal fluting forms fuel gallery with needle-valve body epimere inwall.
Further, the needle-valve middle part is provided with boss or clip spring structure, and the boss or clip spring structure upper surface are installed
Needle valve spring pressure regulation pad, the needle valve spring pressure regulation pad top is provided with needle valve spring, the needle valve spring top surface and control
Valve seat bottom surface contact processed.
Further, when the oil-feed section of oil injector body is connected with high pressure connection structure, the oil injector body and high-voltage connecting
Head uses unitary form.
Further, the oil injector body is screwed to be formed and is tightly connected with needle-valve body by peripherally located tight cap of oil nozzle.
Further, the control valve uses the Ceramic Balls briquetting of Electromagnetic Control.
Further, high pressure oil inlet and oil return opening, the high pressure oil inlet and oil return are provided with the oil injector body
Mouth is respectively positioned on oil injector body middle part, control valve seat lower position, and the high pressure oil inlet is directly connected with oil injector body inner chamber, with
The drainback passage of the oil return opening connection extends upward through oil injector body.
By using above-mentioned technical proposal, the utility model at least has advantages below：
1st, put form in control chamber by adopting：
(1) improve the response speed that fuel injector is opened, closed.Even if being located at the top of oil injector body in control valve seat top surface
In the case of, control chamber is placed in the central region of oil injector body, and control chamber shortens with the spray distance between borehole of needle-valve body, movement parts
Length is shortened, weight reduction, and rigidity is improved.
(2) risk of control valve seat top surface close region cavitation erosion is reduced.Control upper valve seat and control valve (pressure containing Ceramic Balls
Block) the common failure mode of contact surface region cavitation erosion failure category fuel injector, can also increase with the risk for spraying pressure raising failure.
Increased by controlling the distance between upper valve seat top surface and control lower valve seat throttle orifice, fuel oil bubble is generated at throttle orifice in control
Bubble recovers and ruptures with static pressure in the long-channel of upper valve seat shoulder hole hypomere, the risk reduction of control valve seat top surface cavitation erosion.
2nd, by designing (control plunger and spindle Integral design) using integral type needle valve:
(1) control plunger can be substituted with the function of spindle by needle-valve, assembly difficulty reduction between number of components reduction, part.
(2) control plunger can be substituted with the function of spindle by needle-valve, and the radial positioning of control lower valve seat can be directly by pin
Guide frame realization between valve and needle-valve body, simple structure, good manufacturability.
3rd, big volume pressure stabilizing cavity design (being predominantly located at needle-valve body top)：
(1) oil injector body processing technology is good.Oil injector body inner chamber and control upper valve seat lateral surface, control lower valve seat outside
Gap self-assembling formation fuel flow communication passage between face.
(2) volume in the designing voltage regulator chamber is larger and main close to the top of needle-valve body, is conducive to reducing because fuel oil sprays
Pressure oscillation caused by process, oil spout high precision, good stability.
(3) by the design, control upper valve seat sealing surface below, control lower valve seat, needle-valve and needle-valve body sealing intersection with
Upper part, homogeneous intercommunicated, voltage stabilizing cavity pressure is balanced, in the absence of the problem of clearance leakage.
(4) mating surface between needle-valve and needle-valve body only needs guide function, is not required to sealing, and clamping stagnation, abrasion risk are small, coordinate essence
Degree requires to reduce.
4th, oil injector body and high pressure connection Integral design, the wind for thoroughly avoiding high pressure connection from locally being leaked by seal failure
Danger.
Brief description of the drawings
Above-mentioned is only the general introduction of technical solutions of the utility model, in order to better understand technology hand of the present utility model
Section, below in conjunction with accompanying drawing, the utility model is described in further detail with specific embodiment.
Fig. 1 is the section of structure of high-pressure electric control fuel injector in the prior art；
Fig. 2 is the control chamber middle high-pressure electric control injector assembly profile in the utility model embodiment 1；
Fig. 3 is control upper valve seat profile；
Fig. 4 is control lower valve seat profile；
Fig. 5 is needle valve structure profile；
Fig. 6 is needle-valve and needle valve structure profile；
Fig. 7 is tight cap of oil nozzle profile；
Fig. 8 is oil injector body profile；
Fig. 9 is the control chamber middle high-pressure electric control injector assembly profile in embodiment 2；
Figure 10 is the oil injector body profile in Fig. 9.
Parts numbers are as follows in figure：1 electromagnetic valve component, 2 magnetic valve spring adjust pads, 3 magnetic valve springs, 4 magnetic valves
Nut, 5 oil injector bodies, 6 filter cores, 7 nuts, 8 Ceramic Balls briquettings, 9 control upper valve seats, 10 control lower valve seats, 11 needle valve springs, 12
Needle valve spring pressure regulation pad, 13 tight cap of oil nozzle, 14 needle-valve bodies, 15 needle-valves, 16 oil spilling joint screws, 17 fairleads, 18 gasket rings, 19
Armature, 20 pressure stabilizing cavities, 21 control chambers；50 control valve seats, 51 sealing rings, 52 control plungers, 53 oil pockets, 54 pressure springs, 55 pins
Valve fairlead, 56 lift adjust pads, 57 high-pressure oil duct holes, 58 spindles, 59 high pressure connections；71 oil return openings, 72 high pressure oil inlets.
Specific embodiment
Embodiment 1
High-pressure electric control fuel injector as shown in Figure 2, it is main to include control valve, control valve seat, oil injector body 5, needle-valve 15, pin
Valve body 14；Wherein control valve is formed by the Ceramic Balls briquetting 8 of Electromagnetic Control, and control valve seat is preferably using dividing that upper-lower seal is contacted
Body form, including control upper valve seat 9, control lower valve seat 10；Ceramic Balls briquetting 8 coordinates with control upper valve seat 9 top surface, on control valve
Seat 9, control lower valve seat 10 are placed in the inner chamber of oil injector body 5, and oil injector body 5 is tightly connected with needle-valve body 14, and needle-valve 15 is located at control
The lower section of lower valve seat 10, forms control chamber 21 between the control bottom of lower valve seat 10 and the top surface of needle-valve 15, control chamber 21 is located at fuel injector
The middle section position of body 5, preferably controls the distance between the top surface of upper valve seat 9 and control chamber 21 to account for the cavity length of oil injector body 5
20%-60%.
It is above-mentioned in the present embodiment relative to the high-pressure electric control fuel injector of control chamber overhead in the prior art shown in Fig. 1
Electric-controlled fuel injector, will control the distance between the top surface of upper valve seat 9 and control chamber 21 to increase, and control chamber 21 is placed in oil injector body 5
Central region, and then control chamber 21 shortens with the spray distance between borehole of needle-valve body 14, movement parts length is shortened, weight reduction,
Rigidity is improved, and further increases the response speed that fuel injector is opened, closed.
As shown in figure 3, being control upper valve seat profile, T-shaped structure, by control upper valve seat top surface (control upper valve seat top
9b on the outside of face center 9a, control upper valve seat top surface), control upper valve seat omoplate face 9c, control upper valve seat lateral surface 9g, 9h (ladder
Side), control upper valve seat bottom surface 9d cooperatively form jointly.Up-thin-low-thick shoulder hole is provided with inside control upper valve seat, respectively
Shoulder hole epimere 9e, shoulder hole hypomere 9f.Coordinate shown in Fig. 2, above-mentioned control upper valve seat 9 is placed in the inner chamber of oil injector body 5, control
9b is contacted with the lower surface of nut 7 on the outside of upper valve seat top surface, and control upper valve seat omoplate face 9c is contacted with oil injector body omoplate face, is led to
Cross the sealing that nut 7 is screwed between the positioning and contact surface of realizing control upper valve seat 9 in oil injector body 5.
As shown in figure 4, be control lower valve seat profile, in inverted concave structure, by control lower valve seat top surface 10a, control valve
Lower seat lateral surface 10h, control lower valve seat bottom surface 10b, control lower valve seat inner cylinder face 10c, 10g is common for control lower valve seat inner top surface
Cooperatively form；Shoulder hole epimere 10d, wherein shoulder hole hypomere 10e, shoulder hole epimere are provided with control lower valve seat crown center
10d is throttle orifice, and control lower valve seat top-side is provided with throttling pore 10f.
Coordinate shown in Fig. 2, control upper valve seat 9 is contacted with the control upper-lower seal of lower valve seat 10, controls the shoulder hole of lower valve seat
Epimere 10d (throttle orifice) is connected with the shoulder hole hypomere 9f in control upper valve seat.According to different fuel injector length, shoulder hole hypomere
The adjustable length (preferably, controlling the shoulder hole hypomere 9f in upper valve seat to account for the 60%-90% of whole control valve seat length) of 9f, makes
It uses extension to design, because the distance between the control top surface of upper valve seat 9 and the control throttle orifice of lower valve seat 10 increases, at throttle orifice
Generation fuel oil bubble bubble in the long-channel of control upper valve seat shoulder hole hypomere 9f recovers and ruptures with static pressure, controls upper valve seat
The risk of top surface cavitation erosion is substantially reduced.
As shown in figure 5, needle-valve is preferably integral type slender rod piece structure, the control plunger and spindle of conventional fuel injector are had concurrently
Dual-use function.It includes needle-valve top surface 15a, needle-valve top outside 15b, needle-valve bottom conical surface 15e, is provided with the middle part of needle-valve
Boss 15c or clip spring structure, in needle-valve middle and lower part, region 15d opens up longitudinal fluting using the guide section of protrusion on guide section.Match somebody with somebody
Close shown in Fig. 2, Fig. 4, constituted between needle-valve top surface 15a and control lower valve seat inner cylinder face 10c, control lower valve seat inner top surface 10g
Control chamber 21.Needle-valve top outside 15b and control lower valve seat inner cylinder face 10c forms sealing and is slidably matched face.Needle-valve middle part
Boss 15c or clip spring structure, its upper surface installs needle valve spring pressure regulation pad 12, and the top of needle valve spring pressure regulation pad 12 is installed
Needle valve spring 11.The top surface of needle valve spring 11 is contacted with control lower valve seat bottom surface 10b.
As shown in fig. 6, needle-valve body includes needle-valve body top surface 14a, needle-valve body shoulder hole epimere inwall 14b, needle-valve body ladder
Hole hypomere inwall 14c, needle-valve body head 14e, needle-valve body omoplate face 14d.Coordinate shown in Fig. 5, needle-valve middle and lower part region 15d's leads
To section, it is slidably matched with needle-valve body shoulder hole epimere inwall 14b, plays needle-valve guide effect；Needle-valve middle and lower part region 15d's leads
To the longitudinal fluting in section, it forms fuel gallery with needle-valve body shoulder hole epimere inwall 14b.Needle-valve bottom conical surface 15e and pin
Valve head 14e cooperatively forms sealing intersection.
It is illustrated in figure 7 tight cap of oil nozzle profile, including top internal thread 13a, interior step face 13b；As shown in figure 8,
It is oil injector body profile, wherein oil injector body bottom outside is provided with oil injector body external screw thread 5f；Cooperation Fig. 2 is shown, Fig. 6 institutes
Show, oil injector body bottom surface 5e contacts to form matching trim with needle-valve body top surface 14a, realization contact is tightened by tight cap of oil nozzle 13
The sealing in face, tight cap of oil nozzle 13 is contacted by its interior step face 13b with needle-valve body omoplate face 14d, top internal thread 13a with spray
Oily body screw thread 5f coordinates.
As shown in figure 8, the oil-feed section of oil injector body is connected with high pressure connection, oil injector body uses a bodily form with high pressure connection
Formula, wherein oil-feed partial interior shoulder hole 5c, 5d and oil injector body inner space, and set transition arc in Xiang Guanqu.Coordinate figure
2nd, shown in Fig. 3, the gap between the internal chamber wall 5b of oil injector body 5 and control upper valve seat lateral surface 9h forms fuel gallery, on control valve
Sealing surface is formed between seating shoulder shoulder blade face 9c and oil injector body omoplate face 5a, by the screwing hermetic of nut 7；Below the sealing surface, needle-valve
In the sealing intersection above section that the bottom conical surface is formed with needle-valve body head fits, it is respectively formed what is be connected in addition to control chamber 21
Pressure stabilizing cavity 20.The volume in designing voltage regulator chamber 20 is larger and major part is close to the top of needle-valve body 14, is sprayed for stablizing light fluid
Penetrate the pressure oscillation effect for causing obvious.
Other parts as shown in Figure 2, such as electromagnetic valve component 1, magnetic valve spring adjust pad 2, magnetic valve spring 3, electricity
The parts such as magnet valve nut 4, filter core 6, oil spilling joint screw 16, fairlead 17, gasket ring 18, armature 19 are same as the prior art,
This is no longer repeated one by one.
Above-mentioned fuel injector assembling process is summarized as follows:
In fuel injector assembling, screwed with the screw thread of tight cap of oil nozzle 13, between needle-valve bottom conical surface 15e and needle-valve body head 14e
Contact surface compress, contact surface between needle-valve body top surface 14a and oil injector body bottom surface 5e is compressed, needle valve spring 11 compresses control valve
Contact sealing surface between lower seat top surface 10a and control upper valve seat bottom surface 9d.
The course of work of above-mentioned fuel injector is summarized as follows：
Powered up to electromagnetic valve component 1, electromagnetic force drive armature 19 unlatching, Ceramic Balls briquetting 8 lower surface lifting with
Drain path is formed between control upper valve seat top surface, pressure reduction in control chamber 21, needle-valve 15 is lifted, fuel injector commencement of fuel injection；
When control electric current reduces, electromagnetic force suffered by armature 19 reduces, and magnetic valve spring 3 promotes armature 19 to compress Ceramic Balls briquetting 8, draining
Passage is closed, and pressure increases in control chamber 21, the reduction of the lift of needle-valve 15, fuel injector end of injection.
Embodiment 2
As shown in figure 9, be the profile of another form of control chamber middle high-pressure electric control fuel injector, with embodiment 1
Main difference be oil injector body structure it is different.Coordinate shown in Figure 10, high pressure oil inlet 72 is provided with oil injector body
With oil return opening 71, high pressure oil inlet 72 and oil return opening 71 are respectively positioned on the middle part of oil injector body 5, the control lower position of lower valve seat 10, high
It is pressed into hydraulic fluid port 72 directly to be connected with the inner chamber of oil injector body 5, the drainback passage connected with oil return opening 71 extends upward through oil injector body 5.
The above, is only preferred embodiment of the present utility model, not makees any formal to the utility model
Limitation, those skilled in the art make a little simple modification, equivalent variations or modification using the technology contents of the disclosure above,
Fall in protection domain of the present utility model.
Claims (10)
1. a kind of control chamber middle high-pressure electric control fuel injector, including control valve, control valve seat, oil injector body, needle-valve, needle-valve
Body, the control valve coordinates with control valve seat top surface, and control valve seat is placed in oil injector body inner chamber, and oil injector body is sealed with needle-valve body
Connection, needle-valve is located at control valve seat lower section, it is characterised in that：
Control chamber is formed between the control valve seat bottom and needle-valve top surface, the control chamber is located at the middle section of oil injector body
Put；
The needle-valve uses the control plunger and spindle fit form of two-piece unit formula, or uses integral structure.
2. control chamber middle high-pressure electric control fuel injector according to claim 1, it is characterised in that the control valve seat top
The distance between face and control chamber account for the 20%-60% of oil injector body cavity length.
3. control chamber middle high-pressure electric control fuel injector according to claim 1, it is characterised in that the control valve seat is adopted
With separate form in sealing contact up and down, including control upper valve seat, control lower valve seat；
Up-thin-low-thick shoulder hole is provided with inside the control upper valve seat；The control lower valve seat is in inverted concave structure, inverted concave
Inner chamber and needle-valve top surface between form control chamber, control lower valve seat top is provided with throttle orifice, on the throttle orifice and control valve
Shoulder hole hypomere connection in seat, control lower valve seat top-side is provided with throttling pore；
Shoulder hole hypomere in the control upper valve seat accounts for the 60%-90% of whole control valve seat length.
4. the control chamber middle high-pressure electric control fuel injector according to claim any one of 1-3, it is characterised in that the spray
Gap between the side wall and control valve seat lateral surface of oily device cavity forms fuel gallery, between control valve seat top and oil injector body
Form sealing surface；Below the sealing surface, the sealing intersection above section that is formed of the needle-valve bottom conical surface and needle-valve body head fits
In, the pressure stabilizing cavity being connected is respectively formed in addition to control chamber.
5. control chamber middle high-pressure electric control fuel injector according to claim 4, it is characterised in that on the needle-valve, with
Needle-valve body epimere inwall contact site offers longitudinal fluting, the longitudinal fluting using the guide section for protruding, the guide section
Fuel gallery is formed with needle-valve body epimere inwall.
6. the control chamber middle high-pressure electric control fuel injector according to claim any one of 1-3, it is characterised in that the pin
Valve middle part is provided with boss or clip spring structure, and needle valve spring pressure regulation pad, the pin are installed in the boss or clip spring structure upper surface
Valve spring pressure regulation pad top is provided with needle valve spring, and the needle valve spring top surface is contacted with control valve seat bottom surface.
7. the control chamber middle high-pressure electric control fuel injector according to claim any one of 1-3, it is characterised in that the spray
The oil-feed section of oily body is connected with high pressure connection, and the oil injector body uses unitary form with high pressure connection.
8. the control chamber middle high-pressure electric control fuel injector according to claim any one of 1-3, it is characterised in that the spray
Oily body is screwed to be formed and is tightly connected with needle-valve body by peripherally located tight cap of oil nozzle.
9. the control chamber middle high-pressure electric control fuel injector according to claim any one of 1-3, it is characterised in that the control
Valve processed uses the Ceramic Balls briquetting of Electromagnetic Control.
10. the control chamber middle high-pressure electric control fuel injector according to claim any one of 1-3, it is characterised in that described
Be provided with high pressure oil inlet and oil return opening on oil injector body, the high pressure oil inlet and oil return opening be respectively positioned on oil injector body middle part,
Control valve seat lower position, the high pressure oil inlet is directly connected with oil injector body inner chamber, the oil return connected with the oil return opening
Passage extends upward through oil injector body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621274529.3U CN206206039U (en) | 2016-11-24 | 2016-11-24 | A kind of control chamber middle high-pressure electric control fuel injector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621274529.3U CN206206039U (en) | 2016-11-24 | 2016-11-24 | A kind of control chamber middle high-pressure electric control fuel injector |
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| CN206206039U true CN206206039U (en) | 2017-05-31 |
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ID=58747195
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| CN201621274529.3U Active CN206206039U (en) | 2016-11-24 | 2016-11-24 | A kind of control chamber middle high-pressure electric control fuel injector |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106351775A (en) * | 2016-11-24 | 2017-01-25 | 北京亚新科天纬油泵油嘴股份有限公司 | Control cavity middle-set-type high-pressure electronic control oil injector |
| CN109404192A (en) * | 2019-01-08 | 2019-03-01 | 北油电控燃油喷射系统(天津)有限公司 | A kind of electronic fuel injection and the fuel injector including it |
-
2016
- 2016-11-24 CN CN201621274529.3U patent/CN206206039U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106351775A (en) * | 2016-11-24 | 2017-01-25 | 北京亚新科天纬油泵油嘴股份有限公司 | Control cavity middle-set-type high-pressure electronic control oil injector |
| CN106351775B (en) * | 2016-11-24 | 2019-11-12 | 北油电控燃油喷射系统(天津)有限公司 | A kind of control chamber middle high-pressure electric control fuel injector |
| CN109404192A (en) * | 2019-01-08 | 2019-03-01 | 北油电控燃油喷射系统(天津)有限公司 | A kind of electronic fuel injection and the fuel injector including it |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20180725 Address after: 300000 2 Yulong Road, automobile industrial park, Wuqing District, Tianjin Patentee after: North oil electronic control fuel injection system (Tianjin) Co., Ltd. Address before: No. 3, Cheng Zhuang Road, Fengtai District, Beijing Patentee before: Beijing Yaxin Ketianwei Oil Pume Nozzle Tip Co., Ltd. |