CN106555678A - Diesel engine Unit injector fueller - Google Patents
Diesel engine Unit injector fueller Download PDFInfo
- Publication number
- CN106555678A CN106555678A CN201611102205.6A CN201611102205A CN106555678A CN 106555678 A CN106555678 A CN 106555678A CN 201611102205 A CN201611102205 A CN 201611102205A CN 106555678 A CN106555678 A CN 106555678A
- Authority
- CN
- China
- Prior art keywords
- injector
- rocker arm
- fuel
- unit injector
- control
- 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.)
- Granted
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D1/00—Controlling fuel-injection pumps, e.g. of high pressure injection type
- F02D1/02—Controlling fuel-injection pumps, e.g. of high pressure injection type not restricted to adjustment of injection timing, e.g. varying amount of fuel delivered
- F02D1/08—Transmission of control impulse to pump control, e.g. with power drive or power assistance
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D1/00—Controlling fuel-injection pumps, e.g. of high pressure injection type
- F02D1/02—Controlling fuel-injection pumps, e.g. of high pressure injection type not restricted to adjustment of injection timing, e.g. varying amount of fuel delivered
- F02D1/08—Transmission of control impulse to pump control, e.g. with power drive or power assistance
- F02D1/10—Transmission of control impulse to pump control, e.g. with power drive or power assistance mechanical
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D1/00—Controlling fuel-injection pumps, e.g. of high pressure injection type
- F02D1/02—Controlling fuel-injection pumps, e.g. of high pressure injection type not restricted to adjustment of injection timing, e.g. varying amount of fuel delivered
- F02D1/08—Transmission of control impulse to pump control, e.g. with power drive or power assistance
- F02D2001/082—Transmission of control impulse to pump control, e.g. with power drive or power assistance electric
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Fuel-Injection Apparatus (AREA)
- High-Pressure Fuel Injection Pump Control (AREA)
Abstract
The invention discloses a kind of Diesel engine Unit injector fueller, including camshaft chest, injection cam axle, injector rocker arm and Unit injector, camshaft chest lateral surface is provided with fuel oil control electromagnetic valve, injection timing mechanism, fuel-flow control bar and injector rocker arm eccentric shaft are provided with camshaft chest, fuel oil control solenoid-driven fuel-flow control bar vertically moves and promotes the tooth bar on Unit injector to move and realize distributive value control, injection timing mechanism is connected with injector rocker arm eccentric shaft by the linkage with drive rod, the movement of drive rod is converted into into the rotation of injector rocker arm eccentric shaft, displacement transducer is detected drive rod shift position and the precise control to Unit injector injection timing is realized with proportional solenoid linkage.The present invention drives injector rocker arm eccentric shaft by injection timing mechanism, adjusts injection advance angle, and controls solenoid valve control Unit injector throttle position with fuel oil, realizes all operating mode distributive values of electromotor and injection timing precise control.
Description
Technical field
The present invention relates to technical field of engines, especially a kind of Diesel engine Unit injector fuel feeding for fuel injection
Device.
Background technology
Existing Unit injector Diesel engine typically adopts mechanical pump nozzle or electrically-controlled pump nozzle.Mechanical pump nozzle by
Distributive value governor motion and injection equipment composition, injection pressure can reach 1600bar even more highs, but mechanical Unit injector is generally only
Simple realization fuel-flow control, it is impossible to directly reach Europe III and above discharge standard.The fuel injector of electronically controlled unit pump has independent oil
Pump, and the moment and persistent period of integrated solenoid valve control needle-valve unlatching, can be adjusted flexibly, can realize a work as desired
Make multi-injection in cyclic process, but complex structure, manufacture and maintenance cost it is high.
The content of the invention
The technical problem to be solved in the present invention is：Overcome the deficiency in prior art, there is provided one kind can realize electromotor institute
There is the Diesel engine Unit injector fueller of operating mode distributive value and injection timing precise control.
The technical solution adopted for the present invention to solve the technical problems is：A kind of Diesel engine Unit injector fueller,
The pump spray of fuel oil is sprayed including camshaft chest, the injection cam axle in camshaft chest, installed in camshaft chest lateral surface
Mouth, is provided with the injector rocker arm for realizing Unit injector oil spout, described camshaft chest lateral surface peace between injection cam axle and Unit injector
Equipped with fuel oil control electromagnetic valve, injection timing mechanism, parallel with injection cam axle fuel-flow control bar in camshaft chest, is provided with
With injector rocker arm eccentric shaft, fuel oil control solenoid-driven fuel-flow control bar vertically move and promote the tooth bar on Unit injector to move
The control to Unit injector distributive value is realized, injection timing mechanism has timing driver, displacement transducer and proportional solenoid,
Injection timing mechanism is connected with injector rocker arm eccentric shaft by the linkage with drive rod, and timing driver promotes drive rod
Move and realize injector rocker arm eccentric shaft turns, displacement transducer detection drive rod shift position feeds back to the ECU of electromotor simultaneously
The precise control to Unit injector injection timing is realized with proportional solenoid linkage.
Specifically, described fuel oil control electromagnetic valve has position sensor and electronic actuators, and fuel-flow control bar has
Fuel-flow control shift fork and propulsion shift fork, electronic actuators promote the movement of fuel-flow control shift fork and realize the movement of fuel-flow control bar,
Tooth bar movement is driven with the propulsion shift fork that fuel-flow control bar is moved, detection electronic actuators on described position sensor, are connected with
Displacement and feed back to the tappet of ECU.
And drive rod that described linkage includes being connected with timing driver, drive arm component and two ends respectively with
Drive rod and the connecting rod of driving arm component connection, drive arm component to be connected with injector rocker arm eccentric shaft.
Further, the hydraulic valve that described timing driver has connection drive rod and is opened and closed by proportional solenoid valve control
Bar, the return spring being sleeved on drive rod, provided by engine oil pump engine oil pressure overcome return spring elastic force only
Valve is returned, check-valves side is provided with the position Magnet that drive rod shift position is detected for displacement transducer.
Preferably, it is the oil spout of realizing Unit injector, described injector rocker arm is arranged on injector rocker arm eccentric shaft, and oil spout is shaken
The axle center of installing of arm has eccentric distance e with the installation axle center of camshaft chest, and injector rocker arm one end is contacted with injection cam axle, oil spout
The rocking arm other end is pressed on the spring base of Unit injector upper end.
The invention has the beneficial effects as follows：The present invention controls solenoid-driven throttle lever by fuel oil and vertically moves, and enters
And drive the tooth bar movement on Unit injector, realize control to Unit injector distributive value, injection timing mechanism by linkage with
Injector rocker arm eccentric shaft connects, and the axial movement of drive rod is converted into circumferentially rotating for injector rocker arm eccentric shaft, and utilization than
Example solenoid valve control, realizes that injection timing device promotes drive rod optional position in the range of regulation to fix, final control spray
The effective eccentricity of oily rocking arm, reaches the Regulation in all life process to injection advance angle.
Description of the drawings
The present invention is further described with reference to the accompanying drawings and examples.
Fig. 1 is the structural representation of the present invention.
Fig. 2 is the structural representation in Fig. 1 after E direction view rotated ninety degrees.
Fig. 3 is F direction views in Fig. 2.
Fig. 4 is B-B cross section structure diagrams in Fig. 3.
1. injector rocker arm eccentric shaft, 2. injection cam axle, 3. injector rocker arm, 4. Unit injector, 5. displacement transducer 6. in figure
10. fuel-flow control bar of timing driver 7. proportional solenoid, 8. position sensor, 9. electronic actuators 11. advances shift fork
12. tooth bar, 13. drive rod, 14. connecting rod 15. drives 16. fuel-flow control shift fork of arm component, 17. camshaft chest, 18. hydraulic pressure
21. position Magnet of valve rod 19. check-valves, 20. return spring, 22. tappet
Specific embodiment
Presently in connection with accompanying drawing and preferred embodiment, the present invention is further illustrated.These accompanying drawings are simplified signal
Figure, only illustrates the basic structure of the present invention in a schematic way, therefore which only shows the composition relevant with the present invention.
A kind of Diesel engine Unit injector fueller as shown in Figure 1 to 4, including camshaft chest 17, installed in convex
Injection cam axle 2 in wheel shaft room 17, the Unit injector 4 that fuel oil is sprayed installed in 17 medial surface of camshaft chest, injection cam axle 2 with
The injector rocker arm 3 for realizing 4 oil spout of Unit injector is provided between Unit injector 4,3 one end of injector rocker arm is contacted with 2 surface of injection cam axle,
3 other end of injector rocker arm is connected to 4 upper end of Unit injector and is pressed on the spring base of 4 upper end of Unit injector, by injection cam
Axle 2 rotarily drives injector rocker arm 3 and swings, pressure or trip spring seat and realize the oil spout of Unit injector 4.
Described 17 lateral surface of camshaft chest is separately installed with fuel oil control electromagnetic valve, injection timing mechanism, camshaft chest
The fuel-flow control bar 10 and injector rocker arm eccentric shaft 1 each parallel to injection cam axle 2 is provided with 17, wherein on fuel-flow control bar 10
With fuel-flow control shift fork 16 and propulsion shift fork 11, fuel-flow control shift fork 16 is connected with fuel oil control electromagnetic valve, drives whole oil
Amount control-rod 10 is moved axially, and propulsion 11 quantity of shift fork can be determined according to engine cylinder number, the synchronous spray for driving each cylinder pump nozzle 4
Oil mass, is provided with the gathering sill that can limit that fuel-flow control bar 10 is circumferentially rotated on fuel-flow control bar；Injector rocker arm eccentric shaft 1 is installed
When, using circlip, by draw-in groove being processed on the inside of the outermost side support arm that camshaft chest 17 is installed, realize that injector rocker arm is inclined
The axially position of heart axle 1, described injector rocker arm 3 are arranged on injector rocker arm eccentric shaft 1, the installation axle center of injector rocker arm 3 with
The installation axle center of camshaft chest 17 has eccentric distance e.
Described fuel oil control electromagnetic valve includes 9 two parts of position sensor 8 and electronic actuators, fuel oil control electromagnetic valve
It is arranged on the outside of camshaft chest 17 by four bolts, electronic actuators 9 promote fuel-flow control shift fork 16 to move by back-up ring, enter
And vertically moving for fuel-flow control bar 10 is realized, the tooth on Unit injector 4 is driven with the propulsion shift fork 11 that fuel-flow control bar 10 is moved
The control to 4 distributive value of Unit injector is realized in the movement of bar 12, and detection electronic actuators 9 are connected with described position sensor 8
Displacement simultaneously feeds back to the tappet 22 of ECU.
Described injection timing mechanism includes timing driver 6, displacement transducer 5 and proportional solenoid 7, injection timing
Mechanism is connected with injector rocker arm eccentric shaft 1 by linkage, and specifically, described linkage includes and timing driver 6
The connecting rod that the drive rod 13 of connection, driving arm component 15 and two ends are connected with drive rod 13 and driving arm component 15 respectively
14, drive arm component 15 to be connected with injector rocker arm eccentric shaft 1.
Described timing driver 6 have connection drive rod 13 and by proportional solenoid 7 control be opened and closed hydraulic valve stem 18,
The return spring 20 being sleeved on drive rod 13 and the check-valves 19 for overcoming 20 elastic force of return spring, 19 side of check-valves is provided with
The position Magnet 21 of 13 shift position of drive rod is detected for displacement transducer 5.During control, the pressure of engine oil pump supply
Machine oil is introduced into check-valves 19 after machine filter, and the control hydraulic valve stem 18 of proportional solenoid 7 is opened, and pressure machine oil passes through check-valves
19 resilience forces for overcoming return spring 20, promote hydraulic valve stem 18 to realize that drive rod 13 moves linearly, and the straight line of drive rod 13
It is moved through linkage effect and changes into the circumferential movement for driving arm component 15 so that injector rocker arm eccentric shaft 1 and actuating arm
Component synchronization is rotated, and displacement transducer 5 is determined 13 shift position of drive rod and fed back by the position of test position Magnet 21
To the ECU of electromotor, and the precise control to 4 injection timing of Unit injector is realized with the linkage of proportional solenoid 7.
The opening and closing of aforementioned proportion electromagnetic valve 7, fuel oil control the action of electromagnetic valve, have the electronic control unit of electromotor
(i.e. ECU) adjusts control.ECU is detected according to the speed probe installed in 17 region of interest of flywheel shell of engine and camshaft chest
To engine speed and crank angle, throttle sensor signal and other sensor signals carry out optimal fuel Injection Control,
By controlling proportion electro-magnet 7 to the adhesive of hydraulic valve stem 18 and putting from realizing the closing of hydraulic valve and open, and by fuel oil
The control of control electromagnetic valve solenoid effective current, realizes the optimal oil injection time of Unit injector 4 and supply time.
In actually used, fueller is controlled by electronic control unit (ECU), by sensor acquisition vehicle and electromotor
The operation of operating condition and driver is intended to, the signal that ECU is input into according to sensor, can under all working conditions to oil spout just
When and distributive value carry out precise control, bare machine can reach EuropeⅢ emission standard, and after increasing after-treatment system, discharge can even reach
To IV discharge standard of Europe, environmental-protecting performance is greatly improved.Unit injector 4 directly adopts actuated by cams, and only the fuel feeding in oil spout, drives
Dynamic torque is low, and power consumption is little, and, than electronically controlled unit pump low cost, sexual valence is higher for the fueller；Its Power coverage scope is wide,
It is adapted to from light-duty use and marine diesel engine and generating set to heavy goods vehicles use, locomotive.
The present invention controls solenoid-driven throttle lever 10 by fuel oil and vertically moves, and then drives on Unit injector 4
Tooth bar 12 is moved, and realizes the control to 4 distributive value of Unit injector, and injection timing mechanism is by linkage and injector rocker arm eccentric shaft
The axial movement of drive rod 13 is converted into circumferentially rotating for injector rocker arm eccentric shaft 1, and proportion of utilization electromagnetic valve 7 is controlled by 1 connection
System, realizes that injection timing device promotes the optional position in the range of regulation of drive rod 13 to fix, final control injector rocker arm 3
Effective eccentricity, reaches the Regulation in all life process to injection advance angle.
Above-described embodiment technology design only to illustrate the invention and feature, its object is to allow person skilled in the art
Scholar will appreciate that present disclosure and be carried out, can not be limited the scope of the invention with this, all according to the present invention
Equivalence changes or modification that spirit is made, should all cover within the scope of the present invention.
Claims (5)
1. a kind of Diesel engine Unit injector fueller, including camshaft chest (17), the spray in camshaft chest (17)
Oily camshaft (2), the Unit injector (4) that fuel oil is sprayed installed in camshaft chest (17) lateral surface, injection cam axle (2) and Unit injector
(4) injector rocker arm (3) for realizing Unit injector (4) oil spout is provided between, is it is characterized in that：Described camshaft chest (17) lateral surface peace
Equipped with fuel oil control electromagnetic valve, injection timing mechanism, in camshaft chest (17), parallel with injection cam axle (2) oil mass is provided with
Control-rod (10) and injector rocker arm eccentric shaft (1), fuel oil control solenoid-driven fuel-flow control bar (10) are vertically moved and are promoted
There is timing to drive for the mobile control realized to Unit injector (4) distributive value of tooth bar (12) on Unit injector (4), injection timing mechanism
Device (6), displacement transducer (5) and proportional solenoid (7), injection timing mechanism is by the linkage with drive rod (13)
It is connected with injector rocker arm eccentric shaft (1), timing driver (6) promotes drive rod (13) mobile and realizes injector rocker arm eccentric shaft
(1) rotate, displacement transducer (5) detection drive rod (13) shift position feed back to electromotor ECU and with proportional solenoid (7)
The precise control to Unit injector (4) injection timing is realized in linkage.
2. Diesel engine Unit injector fueller according to claim 1, is characterized in that：Described fuel oil control electromagnetism
Valve has position sensor (8) and electronic actuators (9), and fuel-flow control bar (10) is dialled with fuel-flow control shift fork (16) and propulsion
Fork (11), electronic actuators (9) promote fuel-flow control shift fork (16) mobile and realize the movement of fuel-flow control bar (10), with oil mass
The mobile propulsion shift fork (11) of control-rod (10) drives tooth bar (12) mobile, is connected with detection on described position sensor (8)
The displacement of electronic actuators (9) simultaneously feeds back to the tappet (22) of ECU.
3. Diesel engine Unit injector fueller according to claim 1, is characterized in that：Described linkage includes
The drive rod (13) that is connected with timing driver (6), drive arm component (15) and two ends respectively with drive rod (13) and drive
The connecting rod (14) that arm component (15) connects, drives arm component (15) to be connected with injector rocker arm eccentric shaft (1).
4. Diesel engine Unit injector fueller according to claim 3, is characterized in that：Described timing driver
(6) with connection drive rod (13) and by proportional solenoid (7) control opening and closing hydraulic valve stem (18), be sleeved on drive rod (13)
On return spring (20), engine oil pressure be provided by engine oil pump overcome the check-valves of return spring (20) elastic force
(19), check-valves (19) side is provided with the position Magnet (21) that drive rod (13) shift position is detected for displacement transducer (5).
5. Diesel engine Unit injector fueller according to claim 1, is characterized in that：Described injector rocker arm (3)
On injector rocker arm eccentric shaft (1), the installation axle center of injector rocker arm (3) has inclined with the installation axle center of camshaft chest (17)
The heart is contacted with injection cam axle (2) away from e, injector rocker arm (3) one end, and injector rocker arm (3) other end is pressed on Unit injector (4)
On the spring base of end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611102205.6A CN106555678B (en) | 2016-12-02 | 2016-12-02 | Oil supply device for pump nozzle of diesel engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611102205.6A CN106555678B (en) | 2016-12-02 | 2016-12-02 | Oil supply device for pump nozzle of diesel engine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106555678A true CN106555678A (en) | 2017-04-05 |
| CN106555678B CN106555678B (en) | 2022-10-14 |
Family
ID=58445670
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611102205.6A Active CN106555678B (en) | 2016-12-02 | 2016-12-02 | Oil supply device for pump nozzle of diesel engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106555678B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109555604A (en) * | 2018-11-30 | 2019-04-02 | 潍坊力创电子科技有限公司 | The automatically controlled adjustment device of engine oil advance angle |
| CN109630282A (en) * | 2018-11-30 | 2019-04-16 | 潍坊力创电子科技有限公司 | The automatically controlled adjustment device of engine oil advance angle |
| CN109882331A (en) * | 2019-02-28 | 2019-06-14 | 一汽解放汽车有限公司 | A kind of long needle valve spray nozzle coupler high pressure flow measuring device |
| CN114992023A (en) * | 2022-06-09 | 2022-09-02 | 北京航空航天大学 | Aero-engine fuel injection control method adaptive to carbon-negative biofuel |
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| US4907559A (en) * | 1988-04-08 | 1990-03-13 | Voest-Alpine Automotive Gesellschaft M.B.H. | Pump nozzle for diesel engines |
| JPH08284781A (en) * | 1995-04-18 | 1996-10-29 | Mitsubishi Motors Corp | Controller for fuel injection pump |
| CN2440949Y (en) * | 2000-09-08 | 2001-08-01 | 无锡威孚集团有限公司 | Oil jetting pump |
| JP2012077725A (en) * | 2010-10-05 | 2012-04-19 | Yanmar Co Ltd | Device for adjusting fuel injection timing of diesel engine, and method of adjusting assembly phase of the same |
| KR20120126806A (en) * | 2011-05-13 | 2012-11-21 | 현대중공업 주식회사 | Hybrid fuel injection equipment for diesel engine |
| CN103321769A (en) * | 2013-07-10 | 2013-09-25 | 无锡开普动力有限公司 | Fuel injection system of electronic control unit pump |
-
2016
- 2016-12-02 CN CN201611102205.6A patent/CN106555678B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4907559A (en) * | 1988-04-08 | 1990-03-13 | Voest-Alpine Automotive Gesellschaft M.B.H. | Pump nozzle for diesel engines |
| JPH08284781A (en) * | 1995-04-18 | 1996-10-29 | Mitsubishi Motors Corp | Controller for fuel injection pump |
| CN2440949Y (en) * | 2000-09-08 | 2001-08-01 | 无锡威孚集团有限公司 | Oil jetting pump |
| JP2012077725A (en) * | 2010-10-05 | 2012-04-19 | Yanmar Co Ltd | Device for adjusting fuel injection timing of diesel engine, and method of adjusting assembly phase of the same |
| KR20120126806A (en) * | 2011-05-13 | 2012-11-21 | 현대중공업 주식회사 | Hybrid fuel injection equipment for diesel engine |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109555604A (en) * | 2018-11-30 | 2019-04-02 | 潍坊力创电子科技有限公司 | The automatically controlled adjustment device of engine oil advance angle |
| CN109630282A (en) * | 2018-11-30 | 2019-04-16 | 潍坊力创电子科技有限公司 | The automatically controlled adjustment device of engine oil advance angle |
| CN109630282B (en) * | 2018-11-30 | 2023-08-15 | 潍坊力创电子科技有限公司 | Engine oil supply advance angle electric control adjusting device |
| CN109555604B (en) * | 2018-11-30 | 2023-10-13 | 潍坊力创电子科技有限公司 | Engine oil supply advance angle electric control adjusting device |
| CN109882331A (en) * | 2019-02-28 | 2019-06-14 | 一汽解放汽车有限公司 | A kind of long needle valve spray nozzle coupler high pressure flow measuring device |
| CN109882331B (en) * | 2019-02-28 | 2020-11-13 | 一汽解放汽车有限公司 | Long needle valve fuel sprayer mating parts high pressure flow measuring device |
| CN114992023A (en) * | 2022-06-09 | 2022-09-02 | 北京航空航天大学 | Aero-engine fuel injection control method adaptive to carbon-negative biofuel |
| CN114992023B (en) * | 2022-06-09 | 2023-09-26 | 北京航空航天大学 | Aeroengine fuel injection control method suitable for negative carbon biofuel |
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| Publication number | Publication date |
|---|---|
| CN106555678B (en) | 2022-10-14 |
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