CN104989570B - Master and secondary integrated gamma correction fuel injector - Google Patents
Master and secondary integrated gamma correction fuel injector Download PDFInfo
- Publication number
- CN104989570B CN104989570B CN201510392865.1A CN201510392865A CN104989570B CN 104989570 B CN104989570 B CN 104989570B CN 201510392865 A CN201510392865 A CN 201510392865A CN 104989570 B CN104989570 B CN 104989570B
- Authority
- CN
- China
- Prior art keywords
- oil
- fuel injector
- needle
- magnetic valve
- controller
- 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.)
- Active
Links
- 239000000446 fuel Substances 0.000 title claims abstract description 85
- 238000012937 correction Methods 0.000 title claims abstract description 16
- 230000033001 locomotion Effects 0.000 claims description 11
- 230000007246 mechanism Effects 0.000 claims description 8
- 230000000694 effects Effects 0.000 claims description 4
- 239000003921 oil Substances 0.000 abstract description 112
- 238000002347 injection Methods 0.000 abstract description 24
- 239000007924 injection Substances 0.000 abstract description 24
- 239000000295 fuel oil Substances 0.000 abstract description 5
- 239000007921 spray Substances 0.000 description 9
- 239000004065 semiconductor Substances 0.000 description 6
- 239000011162 core material Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000005611 electricity Effects 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 238000002485 combustion reaction Methods 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000004044 response Effects 0.000 description 2
- 230000003321 amplification Effects 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000002153 concerted effect Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000036039 immunity Effects 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 238000012384 transportation and delivery Methods 0.000 description 1
Landscapes
- Fuel-Injection Apparatus (AREA)
Abstract
The invention discloses a kind of master and secondary integrated gamma correction fuel injector, belong to engine art.Including fuel injector main body, fuel injector main body is provided with the upper main oil gallery connected with oil inlet and auxiliary oil duct, and the cross-sectional area of main oil gallery is more than auxiliary oil duct；Structure identical controller for supplying oil, controller for supplying oil connection ECU are respectively equipped with main oil gallery and auxiliary oil duct, controller for supplying oil is provided with the oil supply gallery communicated with oil duct, and controller for supplying oil controls the switch of oil passage outlet.Using two oil ducts can simultaneously oil spout, so that in short time when fuel injector can both meet two-stroke in-cylinder direct fuel-injection engine high speed big load great amount of fuel oil injection requirement, fuel injector working region can be made to realize the requirement of gamma correction, solve the problems, such as that fuel injector not oil spout and distributive value can not be controlled accurately during small fuel injection pulsewidth, improve the fuel economy and power performance of engine.
Description
Technical field
The present invention relates to a kind of engine fuel injector, is especially a kind of master and secondary integrated gamma correction fuel injector, category
In engine art.
Background technology
At present, with increasingly raising of the country to internal combustion engine emission request, carried on the premise of engine power performance is ensured
High fuel economy, improve discharge also as one of core of engine research, this is just proposed to the control accuracy of fuel injector
Higher requirement.
Electromagnetic valve type fuel injector is mainly single pass fuel injector in the prior art.Electronic control injection is thought in general
The discharge characteristic of device is linear, so used as linear actuator, but actually due to needle-valve inertia, magnet coil
The influence of the factor such as electromagnetic force and armature quality, Conventional fuel injectors have one section of inelastic region in the case of small fuel injection pulsewidth,
This section of inelastic region includes：1st, invalid injection phase, i.e. the fuel injection pulsewidth too small stage for causing needle-valve not open, stage combustion
Oil can not spray；2nd, transition stage, i.e. needle-valve can be opened but be not enough to the stage of stable opening, and fuel flow is not in addition
Stability so that the stage spray characteristic is in non-linear.Do not consider that this section of region will cause spray of the electronic control injection in small pulsewidth
It is even more serious the operating mode such as larger error, idling, Smaller load especially in small bore engine to be present in oil mass and design load.This
Outside, engine under the operating mode of big load at a high speed, it is necessary to larger distributive value, due to the work of in-cylinder direct-jet two stroke engine
Cycle period is extremely short, as far as possible avoid discharge loss, realize exhaust outlet completely close under the conditions of big oil mass accurately spray, its spray
Penetrating the time is very restricted, it is therefore necessary to it is required that fuel injector can be in the short time（Millisecond）The interior spray for completing great amount of fuel oil
Penetrate.If selecting the fuel injector of larger flow to meet such condition, fuel injector work when this will cause small fuel injection pulsewidth
Make in inelastic region；If conversely in order that fuel injector workspace avoids inelastic region and selects the fuel injector nothing compared with low discharge
Method meets the demand of the short time of high speed high load working condition big oil mass.
The content of the invention
The technical problems to be solved by the invention are to overcome prior art defect, there is provided a kind of not only to meet in short-term
Between big oil mass eject request, the master and secondary integrated oil spout of gamma correction can also be realized under conditions of small fuel injection pulsewidth
Device, to improve the stability of the control accuracy of fuel injector and distributive value.
In order to solve the above-mentioned technical problem, master and secondary integrated gamma correction fuel injector provided by the invention, including oil spout
Device main body, the fuel injector main body are provided with the upper main oil gallery connected with oil inlet and auxiliary oil duct, the cross section face of the main oil gallery
Product is more than auxiliary oil duct；Structure identical controller for supplying oil, the oil-feeding control are respectively equipped with the main oil gallery and auxiliary oil duct
Device connects ECU, and the controller for supplying oil is provided with the oil supply gallery communicated with oil duct, controller for supplying oil control oil
The switch of road outlet.
In the present invention, institute's controller for supplying oil includes magnetic valve, elastic recoil mechanism, motion needle；The electromagnetism
Valve is fixed in oil duct, and the motion needle is movably arranged on below magnetic valve, can be moved up and down along oil duct, the motion needle
It is connected by elastic recoil mechanism with magnetic valve；The fuel feeding to be connected with oil duct is equipped with inside the magnetic valve and motion needle
Passage.
In the present invention, the motion needle includes armature and needle, and the armature passes through elastic recoil mechanism and magnetic valve
Connection, the needle is string configuration, and the top of needle is connected with armature and connected with magnetic valve, and the middle part of needle is provided with out
Oilhole, the bottom of needle is close to oil passage outlet.
In the present invention, the weight of armature and needle fills more than auxiliary oil duct oil-feeding control in the main oil gallery controller for supplying oil
Put the weight of middle armature and needle.
In the present invention, the elastic recoil mechanism is spring.
In the present invention, the ECU includes control module and 2 drive modules being connected respectively with control module, institute
State magnetic valve of 2 drive modules respectively with main oil gallery and auxiliary oil duct controller for supplying oil to be connected, control the power supply of magnetic valve.
In the present invention, the number of turn of electromagnetic valve coil fills more than auxiliary oil duct oil-feeding control in the main oil gallery controller for supplying oil
Put the number of turn of middle electromagnetic valve coil.
The beneficial effects of the present invention are：(1), using two oil ducts can simultaneously oil spout so that fuel injector both can be light
The requirement of great amount of fuel oil injection, can also make in short time when loose ground meets two-stroke in-cylinder direct fuel-injection engine high speed big load
The requirement of inelastic region is avoided in fuel injector working region, avoids the discharge loss of fuel, oil spout when solving small fuel injection pulsewidth
The problem of device not oil spout and distributive value can not be controlled accurately, while meet fuel injector workspace and avoid inelastic region and high speed greatly
The demand of the short time big oil mass of load condition, improve the fuel economy and power performance of engine；(2), present invention knot
Structure is simple, easy to use, more accurate by the control for making fuel injector between two fuel injection passages.
Brief description of the drawings
Fig. 1 is the master and secondary integrated gamma correction fuel injector structure schematic diagram of the present invention.
Fig. 2 is the control section schematic diagram of ECU.
Fig. 3 is the drive module circuit diagram of ECU.
In figure：1- fuel injector main bodys, 2- oil inlets, 3- fuel screens, 4- Wiring harness connectors, the magnetic valves of 5- first, 6-
One return spring, the armature of 7- first, the needles of 8- first, 9- first jets, 10- ECUs, 11- second solenoid valves, 12- second
Return spring, the armature of 13- second, the needles of 14- second, 15- second nozzles, 16- needle internal galleries, 17- main oil gallerys, 18- are auxiliary
Oil duct.
Embodiment
The present invention is described in further detail below in conjunction with the accompanying drawings.
As shown in figure 1, the master and secondary integrated gamma correction fuel injector of the present invention, including fuel injector main body 1 and ECU
10, fuel injector main body 1 is provided with main oil gallery 17 and auxiliary oil duct 18, and the cross-sectional area of main oil gallery 17 is relatively large, auxiliary oil duct 18
Cross-sectional area it is relatively small, the flow of main oil gallery 17 is more than the flow of auxiliary oil duct 18.Main oil gallery 17 and the top of auxiliary oil duct 18
Communicated with oil inlet 2, oil inlet 2 is provided with fuel screen 3.The bottom of main oil gallery 17 connects auxiliary oil duct 18 with first jet 9,
First jet 9 is provided with multiple spray orifices；The bottom of auxiliary oil duct 18 connects with second nozzle 15, and second nozzle 15 is provided with multiple sprays
Hole.
First magnetic valve 5 is arranged in main oil gallery 17, and positioned at the top of main oil gallery 17, the inside of the first magnetic valve 5 is provided with logical
Road and communicated with oil inlet 2, the magnet coil of the first magnetic valve 5 electrically connects with ECU 1.First armature 7 is movably arranged on
The lower section of first magnetic valve 5, the first armature 7 can be slided up and down along the inwall of main oil gallery 17, and through hole is provided with the first armature 7, the
One needle 8 passes through through hole, is interference fitted between the first armature 7, and the first needle 8 moves with the first armature 7.On first needle 8
Interference step connect the first return spring 6, the first return spring 6 is arranged in the passage of the first magnetic valve 5, the first return bullet
The upper end of spring 6 contacts with positioning boss in the first magnetic valve 5, and the geo-stationary of fuel injector main body 1.The first half of first needle 8
Inside is divided to be provided with oil duct 16, oil duct 16 communicates to form oil supply gallery with the first magnetic valve 5, oil inlet 2, the lower half of the first needle 8
Part is provided with two oil outlets being connected with main oil gallery 17, and oil outlet connects inner chamber and the exocoel of the first needle 8；First needle
8 bottom section is more than the outlet of main oil gallery 17, main oil gallery 17 can be exported and be closed or opened.
Second solenoid valve 11 is arranged in auxiliary oil duct 18, and positioned at the middle part of auxiliary oil duct 18, the inside of second solenoid valve 11 is provided with
Passage, and communicated with oil inlet 2, the magnet coil of second solenoid valve 11 electrically connects with ECU 1.The activity of second armature 13 is set
Putting can slide up and down along the inwall of auxiliary oil duct 18, be provided with the second armature 13 in the lower section of second solenoid valve 11, the second armature 13
Through hole, the second needle 14 are passed through and are interference fitted between through hole, with the secondth armature 13, and the second needle 14 is transported with the second armature 13
It is dynamic.Interference step on second needle 14 connects the second return spring 12, and the second return spring 12 is arranged on second solenoid valve 11
Passage in, the upper end of the second return spring 12 contacts with positioning boss in second solenoid valve 11, and fuel injector main body 1 is relatively quiet
Only.Oil duct 16 is provided with inside the top half of the second needle 14, oil duct 16 is communicated and formed with second solenoid valve 11, oil inlet 2
Oil supply gallery, the latter half of the second needle 14 are provided with two oil outlets being connected with auxiliary oil duct 18, oil outlet connection second
The inner chamber of needle 14 and exocoel；The bottom section of second needle 14 is more than the auxiliary outlet of oil duct 18, and auxiliary oil duct 18 can be exported
Turned off or on.
Because the cross-sectional area of main oil gallery 17 is the cross-sectional area of auxiliary oil duct 18, in order to respective passage phase
Match somebody with somebody, the cross-sectional area of the first needle 8 is more than and the cross-sectional area of the second needle 12, in identical length and the condition of material
Under, the weight of the first needle is more than the quality of the second needle 12, and accordingly, volume and the weight of the first armature 7 are also more than second
The volume and weight of armature 13.
ECU 10 is arranged on the outside of fuel injector main body 1, and ECU 10 passes through Wiring harness connector 4 and engine
ECU is connected.
As shown in Fig. 2 ECU 10 includes two drive modules and control module, two drive module connection control moulds
Block, the core single-chip microcomputer of control module are connected with Engine ECU；First drive module and the magnet coil electricity of the first magnetic valve 5
Connection, the second drive module electrically connect with the magnet coil of second solenoid valve 11.The core single-chip microcomputer of control module, which receives, to be started
The fuel injection pulsewidth signal that machine ECU is sent, after fuel injection pulsewidth then is further analyzed into processing, two drives are controlled respectively
The switching electricity of the magnet coil of dynamic model block.Control of the ECU to fuel injection pulsewidth is carried out with allocation strategy according to following rule：
2 threshold values are pre-set in the control module --- pulsewidth 1 and pulsewidth 2；
When Engine ECU is less than or equal to pulsewidth 1 to the fuel injection pulsewidth value that control module is sent, then control module will be controlled
Make the work of the second drive module, the secondary channels work of fuel injector；
When Engine ECU is more than pulsewidth 1 to the fuel injection pulsewidth value that control module is sent and is less than fuel injection pulsewidth 2, then control
Molding block controls drive module, the main channel work of fuel injector by first；
When Engine ECU is less than or equal to pulsewidth 2 to the fuel injection pulsewidth value that control module is sent, then control module will be same
When control the first drive module and the second drive module, the main and auxiliary passage of fuel injector works simultaneously.
As shown in figure 3, control signal works by triode Q3.1 amplification driving optocoupler in drive circuit, optocoupler leads to
The disconnected voltage difference for determining metal-oxide-semiconductor grid and source class, so as to which the break-make reached to magnet coil in magnetic valve controls.Light in circuit
Coupling can be by the driving pin and fuel injector drive end of microcontroller in control module（That is magnetic valve）Isolation, improve the anti-dry of circuit
Immunity, while also the pin of microcontroller is played a protective role.Because the electric current of microcontroller pin output can not directly drive
Dynamic optocoupler work, a triode is added in optocoupler front end, the unlatching of optocoupler is adjusted by regulation resistance R3.2 size
Electric current.The grid of metal-oxide-semiconductor is connected with the output end of optocoupler, and drain electrode is connected with the low side of fuel injector, source ground.Work as microcontroller
Oil spout driving pin output high level when, triode Q3.1 conductings, optocoupler work, the grid of metal-oxide-semiconductor draws high, the leakage of metal-oxide-semiconductor
Pole is connected with source class, and fuel injector driving coil conducting, fuel injector is opened.Conversely, the controlling switch output low level of microcontroller,
Metal-oxide-semiconductor ends, and fuel injector is closed.Diode D3.1 effect is afterflow, and the moment that fuel injector is closed, magnet coil can induce
Very high induced electromotive force, induced electromotive force are flowed in battery by diode D3.1, avoid excessive induced electromotive force from hitting
Wear metal-oxide-semiconductor.
When the fuel oil for having certain pressure is by entering the inside of fuel injector after oil inlet, fuel screen, pass through needle
Internal passage and the oil outlet of both sides enter eventually into the bottom of oil duct, it is established that with identical oil pressure at oil-feed.Return bullet
Spring is in its pre-compressed state, and its one end contacts with the positioning boss inside magnetic valve, and the other end is directly connected with needle, keep and
Armature movement is consistent.Under original state, no current in magnet coil in magnetic valve, armature and needle by the downward power of spring with
The collective effect that fuel oil upwards pressure in oil duct, the direction made a concerted effort is downward so that needle is taken a seat, and oil passage outlet is closed；When
After magnet coil is powered in magnetic valve, due to the influence of electromagnetic force, direction with joint efforts is set to be changed into upward, armature moves up with needle
Oil passage outlet is opened, the spray orifice commencement of fuel injection on nozzle.
The start-up time that the present invention relies primarily on control magnetic valve controls oil spout starting point and distributive value with the duration,
Therefore the selection of magnetic valve directly affects the response performance and distributive ability of fuel injector.Influence magnetic valve actuation time it is main because
Coil turn, core material, leakage field and supply voltage etc. are known as, when designing the magnetic valve of two passages of electromagnetism, except coil
Beyond the number of turn, other influence factors be accordingly to be regarded as it is identical, so herein only consider coil turn on magnetic valve influence.Coil turn
Several influence essence are the size of inductance, and the coil inductance more than the number of turn is big, and electromagnetic attraction is big, but time constant increase causes
Current-responsive is slow, is unfavorable for the quick acting of magnetic valve.Selected to make electricity in the first magnetic valve 5 during coil turn according to above-mentioned analysis
The number of turn of magnetic coil is more than the number of turn of magnet coil in second solenoid valve 11, is the reason for such way：Weight is larger
First armature 7 and the second needle 8 are by larger electromagnetic attraction, and the first magnetic valve 5 of main oil gallery 17 is in enough conduction time
Under the conditions of can ensure to move up the first needle-valve 8, but in small fuel injection pulsewidth due to electromagnetic conversion process grow, it is difficult to make second
The needle-valve 8 of armature 7 and first acts, and can not carry out fuel feeding；The less needle 14 of second armature 13 and second of weight can be quick
Action, even the second solenoid valve 11 of auxiliary oil duct 18 can ensure that can also there be preferable action response shorter conduction time,
Fuel feeding can be carried out with normal work namely under conditions of small fuel injection pulsewidth, but its oil spout flow is restricted, it is impossible to
Ensure enough fuel deliveries in big pulsewidth.
Described above is only the preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, some improvement can also be made under the premise without departing from the principles of the invention, and these improvement also should be regarded as the present invention's
Protection domain.
Claims (7)
1. a kind of master and secondary integrated gamma correction fuel injector, including fuel injector main body, it is characterised in that：The fuel injector main body
Provided with the upper main oil gallery connected with oil inlet and auxiliary oil duct, the cross-sectional area of the main oil gallery is more than auxiliary oil duct；The main oil
Structure identical controller for supplying oil is respectively equipped with road and auxiliary oil duct, the controller for supplying oil connects ECU, described
Controller for supplying oil is provided with the oil supply gallery communicated with oil duct, and controller for supplying oil controls the switch of oil passage outlet.
2. master and secondary integrated gamma correction fuel injector according to claim 1, it is characterised in that：The oil-feeding control dress
Put including magnetic valve, elastic recoil mechanism, motion needle；The magnetic valve is fixed in oil duct, and the motion needle activity is set
Put below magnetic valve, can be moved up and down along oil duct, the motion needle is connected by elastic recoil mechanism with magnetic valve；It is described
The oil supply gallery to be connected with oil duct is equipped with inside magnetic valve and motion needle.
3. master and secondary integrated gamma correction fuel injector according to claim 2, it is characterised in that：The motion needle bag
Armature and needle are included, the armature is connected by elastic recoil mechanism with magnetic valve, and the needle is string configuration, needle
Top is connected with armature and connected with magnetic valve, and the middle part of needle is provided with oil outlet, and the bottom of needle is close to oil passage outlet.
4. master and secondary integrated gamma correction fuel injector according to claim 3, it is characterised in that：The main oil gallery fuel feeding
The weight of armature and needle is more than the weight of armature and needle in auxiliary oil duct controller for supplying oil in control device.
5. the master and secondary integrated gamma correction fuel injector according to claim 2,3 or 4, it is characterised in that：The elasticity
Return mechanism is spring.
6. the master and secondary integrated gamma correction fuel injector according to any one of Claims 1-4, it is characterised in that：It is described
ECU includes control module and 2 drive modules being connected respectively with control module, 2 drive modules respectively with master
Oil duct connects with the magnetic valve of auxiliary oil duct controller for supplying oil, controls the power supply of magnetic valve.
7. master and secondary integrated gamma correction fuel injector according to claim 6, it is characterised in that：The main oil gallery fuel feeding
The number of turn of electromagnetic valve coil is more than the number of turn of electromagnetic valve coil in auxiliary oil duct controller for supplying oil in control device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510392865.1A CN104989570B (en) | 2015-07-07 | 2015-07-07 | Master and secondary integrated gamma correction fuel injector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510392865.1A CN104989570B (en) | 2015-07-07 | 2015-07-07 | Master and secondary integrated gamma correction fuel injector |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104989570A CN104989570A (en) | 2015-10-21 |
| CN104989570B true CN104989570B (en) | 2017-12-08 |
Family
ID=54301435
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510392865.1A Active CN104989570B (en) | 2015-07-07 | 2015-07-07 | Master and secondary integrated gamma correction fuel injector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104989570B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106401825B (en) * | 2016-12-09 | 2018-12-07 | 杭州电子科技大学 | Dual-coil electromagnetic valve controls diesel injector |
| CN110307110B (en) * | 2019-06-26 | 2021-07-23 | 河南美力达汽车有限公司 | Main and auxiliary integrated nonlinear correction oil sprayer |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3366495B2 (en) * | 1995-05-31 | 2003-01-14 | 三菱自動車工業株式会社 | Fluid ejection device |
| JP2005320871A (en) * | 2004-05-06 | 2005-11-17 | Niigata Power Systems Co Ltd | Fuel injection system for diesel engine |
| JP2006029203A (en) * | 2004-07-15 | 2006-02-02 | Mitsubishi Heavy Ind Ltd | Diesel engine equipped with pilot fuel device and method for operating the same |
| JP4576345B2 (en) * | 2006-02-17 | 2010-11-04 | 日立オートモティブシステムズ株式会社 | Electromagnetic fuel injection valve |
| JP5708466B2 (en) * | 2011-12-14 | 2015-04-30 | 株式会社デンソー | Dual injector |
| US20140346254A1 (en) * | 2014-08-07 | 2014-11-27 | Caterpillar Inc. | Fuel injector for gaseous injection |
-
2015
- 2015-07-07 CN CN201510392865.1A patent/CN104989570B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN104989570A (en) | 2015-10-21 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103244322B (en) | Dual-fuel electromagnetic and piezoelectric control type injector | |
| CN104989570B (en) | Master and secondary integrated gamma correction fuel injector | |
| CN106762291A (en) | A kind of board-like electric-controlled fuel injector of minute hand valve opening without static leakage | |
| CN102434346A (en) | Low oil-return type electromagnetic control oil sprayer | |
| CN2937707Y (en) | Drive device of high speed magnetic valve | |
| CN115387943B (en) | Multi-injection mode electric control fuel injector suitable for high-power diesel engine | |
| CN105756811B (en) | Combined type piezoelectricity and supercharging electromagnetism fuel gas ejecting device | |
| CN206753784U (en) | A kind of board-like electric-controlled fuel injector of minute hand valve opening with ditch | |
| CN109058013A (en) | A kind of natural gas diesel injector of new control model | |
| CN103244321B (en) | Dual-fuel dual-piezoelectric control type injector | |
| CN207935021U (en) | A kind of micro- injection injector of automatically controlled pressure maintaining type | |
| JP3527862B2 (en) | Fuel injection device and internal combustion engine | |
| CN106014730B (en) | Double oil circuits cool down electromagnetic control oil sprayer | |
| CN206707900U (en) | A kind of low-power diesel-driven generator fuel jet electronic monoblock pump | |
| CN106523228A (en) | Fuel-injection electronic unit pump for low-power diesel generator | |
| CN203925840U (en) | Electromagnetic Control pressure accumulation constant-voltage type oil sprayer | |
| CN206419138U (en) | The board-like electric-controlled fuel injector of minute hand valve opening | |
| CN209293945U (en) | A kind of natural gas diesel injector of new control model | |
| CN206668415U (en) | A kind of pump rail valve ozzle novel diesel spraying system used for diesel engine | |
| CN102966452B (en) | Electromagnetic valve driving device | |
| CN113790115A (en) | Electrically controlled common rail oil injector adopting piezoelectric drive to realize variable oil injection rule | |
| CN113790117A (en) | High-pressure common rail oil injector based on flexible and controllable oil injection rule of electromagnetic proportional valve | |
| CN206376965U (en) | A kind of board-like electric-controlled fuel injector of minute hand valve opening without static leakage | |
| CN103711626B (en) | Petrol engine fuel injector controls booster circuit | |
| CN2500828Y (en) | Electrocontrolled oil injector for electrocontrolled high-pressure common rail diesel oil injecting system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Application publication date: 20151021 Assignee: Nanjing Jincheng Machinery Co.,Ltd. Assignor: Nanjing University of Aeronautics and Astronautics Contract record no.: X2020980000587 Denomination of invention: Main and assistant integrated nonlinear rectification oil atomizer Granted publication date: 20171208 License type: Exclusive License Record date: 20200311 |
|
| EE01 | Entry into force of recordation of patent licensing contract |