CN104912708B - A kind of electronically controlled unit pump and its fuel oil supply system based on GMM - Google Patents
A kind of electronically controlled unit pump and its fuel oil supply system based on GMM Download PDFInfo
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- CN104912708B CN104912708B CN201510346327.9A CN201510346327A CN104912708B CN 104912708 B CN104912708 B CN 104912708B CN 201510346327 A CN201510346327 A CN 201510346327A CN 104912708 B CN104912708 B CN 104912708B
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- gmm
- plunger
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Abstract
The present invention discloses a kind of electronically controlled unit pump and fuel oil supply system based on GMM, which there is plunger bushing and plunger, the plunger activity to be installed in the plunger cavity formed in plunger bushing；It is characterized in that：It is additionally provided in plunger bushing for driving the movable GMM assemblies of the plunger, which includes GMM rod and driving coil；The driving coil is set on coil rack, and the driving coil is electrically connected with ECU controllers；GMM rod is installed in coil rack, and one end limit of the GMM rod is fixed, and other end top is located on plunger.The present invention compensates for that existing electronically controlled unit pump system structure is complicated, charge oil pressure is relatively low and pressure size is unable to control, distributive value is difficult to the defect accurately controlled, meet the emission regulation limitation of the existing and following high standard, while being conducive to keep the technology of low oil consumption to require.
Description
Technical field
The present invention relates to a kind of fuel delivery technology, in particular to a kind of electronically controlled unit pump and its fuel oil confessions based on GMM
To system.
Background technology
The limitation of continuous stringent emission regulation, and reduce fuel consumption and reduce the requirement of noise to internal-combustion engine technology
Development served conclusive, great influence is also produced to the development of its fuel feed system.Fuel feed system is not
Only to meet the requirement of economy, also to meet the requirement of exhaust gas discharge and noise.
Existing electronically controlled unit pump system is a kind of modular single cylinder high pressure pump system, and beginning of injection is distinguished with distributive value
It is determined by the duration of solenoid valve start-up time and closing, is up to can reach the injection pressure of 400-600bar more.But
With the raising of discharging standards, the development of the low oil consumption technology of holding, existing electronically controlled unit pump is bound to cannot be satisfied
The requirement of technology development.In addition, existing electronically controlled unit pump by idler wheel by the actuated by cams tappet body on engine cam,
Plunger return spring opposite engine camshaft pinch rollers, tappet body make the plunger upward and downward in the pump housing, this mode master
It has a disadvantage that：（1）Distributive value can not be accurately controlled；（2）Injection pressure it is relatively low and can not with engine operating condition change and
It is adjusted；（3）The structure of existing monoblock pump oil supply system is extremely complex, increases the power consumption of engine.
Invention content
The purpose of the present invention is to provide a kind of electronically controlled unit pump and its fuel oil supply system based on GMM, overcomes existing
Electronically controlled unit pump system is relatively low there are complicated, charge oil pressure and pressure size is unable to control, distributive value is difficult to accurately control
The defects of, meet the emission regulation limitation of the existing and following high standard, while being conducive to keep the technology of low oil consumption to require.
In order to achieve the above objectives, solution of the invention is：
There is a kind of electronically controlled unit pump based on GMM plunger bushing and plunger, the plunger activity to be installed in plunger bushing and be formed
Plunger cavity in；It is additionally provided in plunger bushing for driving the movable GMM assemblies of the plunger, which includes GMM rod and driving
Coil；Driving coil is set on coil rack, and GMM rod is installed in coil rack, and one end limit of the GMM rod is fixed,
Other end top is located on plunger.
The driving coil includes the magnet exciting coil and bias coil being applied in combination.
The GMM chambers being connected with plunger cavity are correspondingly formed in the plunger bushing, GMM assemblies adaptation is installed on the GMM chambers
It is interior.
The GMM chambers are in one end open shape, and plunger bushing is equipped with an end cap that the GMM chambers are closed for closed cover.
A kind of fuel oil supply system based on GMM includes electronically controlled unit pump and ECU controllers；The electronically controlled unit pump has
There are plunger bushing and plunger, which is installed in the plunger cavity formed in plunger bushing；It is additionally provided in plunger bushing for driving
The movable GMM assemblies of the plunger, which includes GMM rod and driving coil；The driving coil is set on coil rack, and
The driving coil is electrically connected with ECU controllers；GMM rod is installed in coil rack, and one end limit of the GMM rod is solid
Fixed, other end top is located on plunger.
The driving coil includes the magnet exciting coil and bias coil being applied in combination.
The GMM chambers being connected with plunger cavity are formed in the plunger bushing, GMM assemblies adaptation is installed on the GMM intracavitary.
The GMM chambers are in one end open shape, and plunger bushing is equipped with an end cap that the GMM chambers are closed for closed cover.
After adopting the above scheme, a kind of GMM electronically controlled unit pumps of the present invention and its（Diesel engine）Fuel oil supply system, relative to
The advantageous effect of the prior art has the following：
One, GMM control technologies are innovatively used, without using what is be made of in the prior art idler wheel, camshaft, tappet etc.
Complicated driving mechanism pushes plunger upward and downward, has simple in structure, is easy to accurately control, facilitates installation；
Two, electronically controlled unit pump compression strength and large carrying capacity based on GMM, can work under high-pressure environment, corresponding
The fuel oil supply system based on GMM the injection pressure of 1400-1600bar may be implemented, and change with engine operating condition and require,
System injection pressure size can be changed to be adjusted；
Three, injection process is controlled by controlling the flexible of GMM rod in monoblock pump, magnetostriction coefficient is very big, in this way
The precision control to injection time and distributive value can be realized easily；
Four, the response time for generating magnetostrictive effect is short, and magnetization and the effect for generating stress are almost simultaneous,
Response frequency is high, meets high speed engine fuel delivery needs；
Five, the temperature of GMM wants high, therefore the electronically controlled unit pump based on GMM at 300 DEG C or more more than current piezoelectric ceramics
Work at relatively high temperatures can also retention property stablize, can more meet operating environment requirements.
Description of the drawings
Fig. 1 is the structural schematic diagram of the electronically controlled unit pump the present invention is based on GMM；
Fig. 2 is the structural schematic diagram of the fuel oil supply system the present invention is based on GMM.
Label declaration
Electronically controlled unit pump 100
1 fuel filler 11 of plunger bushing
12 drainback passage 13 of fuel outlet
14 GMM chambers 15 of plunger cavity
16 plunger 2 of end cap
3 GMM rod 31 of GMM assemblies
32 coil rack 33 of driving coil
Solenoid valve 4 controls spool 41
200 hand oil pump 300 of fuel tank
400 oil transfer pump 500 of coarse filter
600 fuel injector 700 of fine cleaner
800 crankshaft sensor 801 of ECU controllers
802 throttle position switch 803 of camshaft-signal sensor
804 barometric pressure sensor 805 of boost-pressure sensor
806 cooling-water temperature transmitter 807 of intake air temperature sensor
Pressure limiting valve 900.
Specific implementation mode
This case is described in further detail with reference to the accompanying drawings and detailed description.
This case is related to a kind of electronically controlled unit pump based on GMM, as shown in Figure 1, electronically controlled unit pump 100 has plunger bushing 1, column
Plug 2 and solenoid valve 4.Plunger bushing 1 is equipped with fuel filler 11, fuel outlet 12, return flow line 13 and plunger cavity 14.Plunger 2 fills
It is located in plunger cavity 14, and can be up and down in plunger cavity 14.Solenoid valve 4 is mounted on plunger bushing 1, and spool is controlled by it
41, play the role of the on or off for controlling return flow line 13.
The present invention in plunger bushing 1 in being additionally provided with for driving the 2 movable GMM assemblies 3 of plunger.The GMM assemblies 3 include
GMM rod 31, driving coil 32 and coil rack 33.Driving coil 32 is set on coil rack 33, which includes group
Close the magnet exciting coil and bias coil used.When monomer pump work, driving coil 32 and related controller（ECU controllers 800）
Mutually it is electrically connected.GMM rod 331 is installed in coil rack 33, and one end limit of the GMM rod 31 is fixed, and other end top is set
On the lower face of plunger 2.
GMM rod 31 is by giant magnetostrictive material（GMM）It is made, giant magnetostrictive material（GMM）Being one kind having pole
The magnetostriction materials that big mangneto coefficient, dilatation can accurately control.The material has very high heat resisting temperature, mangneto
Telescopicing performance is strong, and the conversion ratio between mechanical energy and electric energy is high, energy density is big, fast response time, good reliability, type of drive
The features such as simple.
Preferably, the GMM chambers 15 being connected with plunger cavity 14 are formed in plunger bushing 1, the adaptation of GMM assemblies 3 is installed on this
In GMM chambers 15.Further, GMM chambers 15 are in one end open shape, so that GMM assemblies and plunger are installed.Plunger bushing 1 is equipped with one
End cap 16 closes GMM chambers 15 for closed cover.
The present invention is based on the electronically controlled unit pump of GMM, operation principle is as follows：
1）Oil feeding process：4 no power of solenoid valve, ECU controllers make GMM rod 31 contract by controlling the voltage of driving coil 32
Short, plunger 2 moves down, and spraying system internal pressure will be less than the injection pressure of low pressure oil way, and low-pressure system fuel oil will pass through at this time
Fuel filler 11 on plunger bushing 1 enters high-pressure injection system；
2）Preliminary process：ECU controllers control 32 voltage of driving coil makes GMM rod 31 extend, when plunger 2 rises, plunger
Fuel oil in chamber 14 is compressed, if solenoid valve 4 is still in off-position at this time, then being connected between high-low pressure oil circuit, high pressure
The fuel oil of intracavitary flows back from low pressure chamber, and entire high-pressure oil passage can not set up high pressure；
3）Course of injection：ECU controllers control 32 voltage of driving coil makes GMM rod 4 extend, in 2 uphill process of plunger,
Some particular moment ECU controllers send out a control fuel injection pulse signal, so that solenoid valve 4 is powered, at this moment 13 quilt of drainback passage
It closes, plunger cavity 14 forms an enclosed volume, and as plunger 2 rises, the fuel oil in enclosed volume is compressed, on pressure is rapid
It rises, high pressure fuel is extruded from fuel outlet 12；
4）Unloading process：When controlling fuel injection pulse signal termination, solenoid valve 4 powers off, and drainback passage 13 reopens, and fires
Oily thus overflow, 14 rapid pressure drop of plunger cavity, course of injection terminate.
The present invention also proposes a kind of fuel oil supply system based on GMM, as shown in Fig. 2, include electronically controlled unit pump 100,
Fuel tank 200, hand oil pump 300, coarse filter 400, oil transfer pump 500, fine cleaner 600, fuel injector 700 and ECU controllers 800.Its
In, fuel tank 200, hand oil pump 300, coarse filter 400, oil transfer pump 500 and fine cleaner 600 connect according to this, the output of fine cleaner 600
The fuel filler 11 of end connection electronically controlled unit pump 100, the fuel outlet 12 of electronically controlled unit pump 100 connect fuel injector 700, automatically controlled list
The outlet of the drainback passage 13 of body pump 100, which is returned, is connected to fuel tank 200.The output end of fine cleaner 600 preferably also passes through pressure limiting valve
It is connected to fuel tank 200 900 times.
The signal input part of ECU controllers 800 is connected with the sensor for detecting all kinds of parameters, specifically there is bent axle sensing
Device 801, camshaft-signal sensor 802, throttle position switch 803, boost-pressure sensor 804, barometric pressure sensor 805,
Intake air temperature sensor 806 and cooling-water temperature transmitter 807.Two control output ends of ECU controllers 800 respectively with it is each automatically controlled
The solenoid valve 4 and 32 phase of driving coil of monoblock pump 100 are electrically connected.The structure of the electronically controlled unit pump 100 of this fuel oil supply system
Using a kind of electronically controlled unit pump based on GMM recited above, tired state no longer is carried out herein.
This fuel oil supply system operation principle is as follows：When diesel engine works, oil transfer pump 500 is by diesel oil from fuel tank 200
Middle suction, diesel oil are finally entered through hand oil pump 300, coarse filter 400, fine cleaner 600 in the electronically controlled unit pump 100 based on GMM,
ECU controllers 800 according to throttle position switch 803, boost-pressure sensor 804, barometric pressure sensor 805, into temperature
The signal for spending sensor 806 and cooling-water temperature transmitter 807 calculates best distributive value, is fed and is sprayed by electronically controlled unit pump 100
It is sprayed in oily device 700, excess fuel is flow back into through oil pipe in fuel tank 200.When engine works, ECU controllers 800 are examined at any time
The signal of crankshaft sensor 801 and camshaft-signal sensor 802 is surveyed, and is risen to control plunger 2 by controlling the flexible of GMM rod 32
With the time of decline, while by control monoblock pump 100 on solenoid valve 4 start-up time and close moment, carry out control system
Fuel delivery.
To sum up, the present invention is based on GMM to develop a kind of new fuel oil monomer pump configuration and fuel delivery electric-control system, and is formed
A kind of completely new Fuel Feeding System for Diesel Engine system, it is relatively low to compensate for existing electronically controlled unit pump system structure complexity, charge oil pressure
And pressure size is unable to control, distributive value is difficult to the defect accurately controlled, meets the exhaust method restrictions of the existing and following high standard
System, while being conducive to keep the technology of low oil consumption to require.
The foregoing is merely the preferred embodiment of the present invention, all equivalent changes done with scope of the invention as claimed and
Modification, should all belong to the range of the claims in the present invention.
Claims (4)
1. there is a kind of electronically controlled unit pump based on GMM plunger bushing, plunger and solenoid valve, plunger bushing to be equipped with fuel filler, combustion
Oil export, return flow line and plunger cavity, the plunger activity are installed in the plunger cavity formed in plunger bushing；It is characterized in that：Column
It is additionally provided in plug sleeve for driving the movable GMM assemblies for making to form high injection pressure chamber in plunger cavity of the plunger, the GMM assemblies
Including GMM rod and driving coil；Driving coil is set on coil rack, and GMM rod is installed in coil rack, and the GMM rod
One end limit fix, other end top is located on plunger；The driving coil includes the magnet exciting coil being applied in combination and biasing
Coil；The GMM chambers being connected with plunger cavity are correspondingly formed in the plunger bushing, GMM assemblies adaptation is installed on the GMM intracavitary；
The control process of the electronically controlled unit pump is：
1）Oil feeding process：Solenoid valve no power, ECU controllers make GMM rod shorten by controlling the voltage of driving coil, under plunger
It moves, spraying system internal pressure will be less than the injection pressure of low pressure oil way, and low-pressure system fuel oil will be by plunger bushing at this time
Fuel filler enters high-pressure injection system；
2）Preliminary process：ECU controllers control driving coil voltage makes GMM rod extend, when plunger rises, the fuel oil in plunger cavity
It is compressed, if solenoid valve is still in off-position at this time, then be connected between high-low pressure oil circuit, the fuel oil in high pressure chest is from low
Press chamber reflux, entire high-pressure oil passage that can not set up high pressure；
3）Course of injection：ECU controllers control driving coil voltage makes GMM rod extend, specific at some in plunger uphill process
Moment ECU controller sends out a control fuel injection pulse signal, makes solenoid valves, at this moment drainback passage is closed, plunger cavity
Form an enclosed volume, as plunger rises, the fuel oil in enclosed volume is compressed, and pressure rises rapidly, high pressure fuel from
Fuel outlet extrudes；
4）Unloading process：When controlling fuel injection pulse signal termination, solenoid valve power-off, drainback passage reopens, and fuel oil is thus
Overflow, plunger cavity rapid pressure drop, course of injection terminate.
2. a kind of electronically controlled unit pump based on GMM as described in claim 1, it is characterised in that：The GMM chambers are in one end open
Shape, plunger bushing are equipped with an end cap that the GMM chambers are closed for closed cover.
3. a kind of fuel oil supply system based on GMM, it is characterised in that：Including automatically controlled monomer as claimed in claim 1 or 2
Pump, further includes fuel tank, hand oil pump, coarse filter, oil transfer pump, fine cleaner, fuel injector and ECU controllers；Wherein, fuel tank, hand
Oil pump, coarse filter, oil transfer pump and fine cleaner are sequentially connected, the fuel filler of the output end connection electronically controlled unit pump of fine cleaner, electricity
The fuel outlet for controlling monoblock pump connects fuel injector, and the outlet of the drainback passage of electronically controlled unit pump, which is returned, is connected to fuel tank；ECU controllers
Signal input part be connected with the sensor for detecting all kinds of parameters, sensor include crankshaft sensor, camshaft-signal sensor,
Throttle position switch, boost-pressure sensor, barometric pressure sensor, intake air temperature sensor and coolant temperature sensing
Device；Two control output ends of ECU controllers are mutually electrically connected with the solenoid valve of each electronically controlled unit pump and driving coil respectively；
The control process of the fuel oil supply system is：When diesel engine works, diesel oil is sucked out oil transfer pump from fuel tank, diesel oil
It is finally entered through hand oil pump, coarse filter, fine cleaner in the electronically controlled unit pump based on GMM, ECU controllers are passed according to throttle position
The signal calculation of sensor, boost-pressure sensor, barometric pressure sensor, intake air temperature sensor and cooling-water temperature transmitter
Go out best distributive value, is fed in fuel injector and sprayed by electronically controlled unit pump, excess fuel is flow back into through oil pipe in fuel tank；Engine
When work, ECU controllers detect the signal of crankshaft sensor and camshaft-signal sensor at any time, and by controlling the flexible of GMM rod
Control the time of plunger raising and lowering, while start-up time and close moment by controlling the solenoid valve on monoblock pump,
Carry out the fuel delivery of control system.
4. a kind of fuel oil supply system based on GMM as claimed in claim 3, it is characterised in that：The output of the fine cleaner
End is also returned by pressure limiting valve and is connected to fuel tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510346327.9A CN104912708B (en) | 2015-06-23 | 2015-06-23 | A kind of electronically controlled unit pump and its fuel oil supply system based on GMM |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510346327.9A CN104912708B (en) | 2015-06-23 | 2015-06-23 | A kind of electronically controlled unit pump and its fuel oil supply system based on GMM |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104912708A CN104912708A (en) | 2015-09-16 |
| CN104912708B true CN104912708B (en) | 2018-11-13 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510346327.9A Expired - Fee Related CN104912708B (en) | 2015-06-23 | 2015-06-23 | A kind of electronically controlled unit pump and its fuel oil supply system based on GMM |
Country Status (1)
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| CN (1) | CN104912708B (en) |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6364221B1 (en) * | 1999-09-29 | 2002-04-02 | Siemens Automotive Corporation | Electronic fuel injector actuated by magnetostrictive transduction |
| JP2004266035A (en) * | 2003-02-28 | 2004-09-24 | Tdk Corp | Drawing actuator |
| CN201013504Y (en) * | 2006-12-07 | 2008-01-30 | 亚新科南岳（衡阳）有限公司 | Diesel engine fuel injection electric control unit pump |
| CN201461174U (en) * | 2009-08-20 | 2010-05-12 | 中国一拖集团有限公司 | Electronically controlled monoblock pump for diesel fuel injection system |
| CN103291578B (en) * | 2013-05-06 | 2015-11-18 | 南京航空航天大学 | Giant magnetostrictive hydraulic pump and method of work thereof |
| CN103603793A (en) * | 2013-11-01 | 2014-02-26 | 安徽理工大学 | High-precision high-frequency micropump based on super-magnetostriction converter |
| CN204403745U (en) * | 2015-01-12 | 2015-06-17 | 广东文理职业学院 | A kind of highi degree of accuracy butter automatic filling unit |
| CN204677344U (en) * | 2015-06-23 | 2015-09-30 | 厦门理工学院 | A kind of electronically controlled unit pump based on GMM and fuel oil supply system thereof |
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2015
- 2015-06-23 CN CN201510346327.9A patent/CN104912708B/en not_active Expired - Fee Related
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| Publication number | Publication date |
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| CN104912708A (en) | 2015-09-16 |
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