CN107461287A - Fuel injector and its fuel injecting method, electronic control unit, engine and automobile - Google Patents
Fuel injector and its fuel injecting method, electronic control unit, engine and automobile Download PDFInfo
- Publication number
- CN107461287A CN107461287A CN201610396677.0A CN201610396677A CN107461287A CN 107461287 A CN107461287 A CN 107461287A CN 201610396677 A CN201610396677 A CN 201610396677A CN 107461287 A CN107461287 A CN 107461287A
- Authority
- CN
- China
- Prior art keywords
- working chamber
- fuel
- nozzle opening
- injection amount
- fuel injection
- 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.)
- Pending
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M51/00—Fuel-injection apparatus characterised by being operated electrically
- F02M51/06—Injectors peculiar thereto with means directly operating the valve needle
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D41/00—Electrical control of supply of combustible mixture or its constituents
- F02D41/30—Controlling fuel injection
- F02D41/38—Controlling fuel injection of the high pressure type
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M61/00—Fuel-injectors not provided for in groups F02M39/00 - F02M57/00 or F02M67/00
- F02M61/16—Details not provided for in, or of interest apart from, the apparatus of groups F02M61/02 - F02M61/14
- F02M61/18—Injection nozzles, e.g. having valve seats; Details of valve member seated ends, not otherwise provided for
- F02M61/1806—Injection nozzles, e.g. having valve seats; Details of valve member seated ends, not otherwise provided for characterised by the arrangement of discharge orifices, e.g. orientation or size
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D41/00—Electrical control of supply of combustible mixture or its constituents
- F02D41/30—Controlling fuel injection
- F02D41/38—Controlling fuel injection of the high pressure type
- F02D2041/389—Controlling fuel injection of the high pressure type for injecting directly into the cylinder
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D2200/00—Input parameters for engine control
- F02D2200/02—Input parameters for engine control the parameters being related to the engine
- F02D2200/06—Fuel or fuel supply system parameters
- F02D2200/0611—Fuel type, fuel composition or fuel quality
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D2200/00—Input parameters for engine control
- F02D2200/02—Input parameters for engine control the parameters being related to the engine
- F02D2200/06—Fuel or fuel supply system parameters
- F02D2200/0614—Actual fuel mass or fuel injection amount
- F02D2200/0616—Actual fuel mass or fuel injection amount determined by estimation
Abstract
A kind of fuel injector and its fuel injecting method, electronic control unit, engine and automobile, wherein, fuel injector, including：Oil outlet end, the oil outlet end stretch into the combustion chamber of cylinder, and the oil outlet end includes：First working chamber, first working chamber are provided with multiple first nozzle openings；Second working chamber, in the cavity of first working chamber, the cavity of second working chamber is oil inlet passage, second working chamber is provided with multiple the second nozzle openings connected with the oil inlet passage, and second working chamber is provided with the surface of nozzle opening and first working chamber is provided with the surface fitting of nozzle opening；Second working chamber being capable of first working chamber motion relatively so that first nozzle opening is different from the hole count that second nozzle opening connects.The hole count of the nozzle opening of fuel injector of the present invention is variable, meets engine under which different load operating mode, to the demand of fuel injection amount.
Description
Technical field
The present invention relates to automobile technical field, and in particular to a kind of fuel injector and its fuel injecting method, electronics control
Unit, engine and automobile processed.
Background technology
With reference to figure 1 and Fig. 2, in the prior art, fuel injector 10 includes oil inlet end 11 and oil outlet end 12.Spray
Oily device 10 has a working chamber, and coil 20, spring 30, armature 40, needle-valve are provided with working chamber
Bar 50, valve ball 51 and valve seat 60.When coil 20 is not powered on, the elastic force of spring 30 presses Needle shaft 50
Firmly so that valve ball 51 and valve seat 60 are bonded, and fuel oil can not flow into oil outlet end 12 by oil inlet end 11.When
After coil 20 is powered, coil 20 produces magnetic force, and armature 40 is picked up, and valve ball 51 is lifted off a seat
60 carry out oil spouts (with reference to figure 2), and arrow shows the flow direction of fuel oil in Fig. 2.With reference to figure 3, fuel oil from
The nozzle opening 12a of oil outlet end 12 is sprayed in the combustion chamber (not shown) of the cylinder of engine.Work as power-off
Afterwards, electromagnetic force will disappear, and Needle shaft 50 is under the elastic force effect of spring 30, valve ball 51 and valve seat 60
Fuel sealing is lived in fitting.
In the prior art.Hole count positioned at oil outlet end 12 towards the nozzle opening 12a of the end face of combustion chamber can not
Become, such as 6 nozzle opening 12a are shown in Fig. 3.But a variety of works occur in engine in the course of the work
Condition, the fuel injection amount needed under big load at a high speed are big；The fuel oil needed under low speed small load condition
Emitted dose is small.Because in the prior art, the nozzle opening 12a of fuel injector 10 hole count is immutable, just can not
Engine is realized under different load operating mode, to the demand of fuel injection amount.
The content of the invention
The present invention solves the problems, such as it is that in the prior art, the hole count of the nozzle opening of fuel injector is immutable, it is impossible to
Engine is realized under different load operating mode, to the demand of fuel injection amount.
To solve the above problems, the present invention provides a kind of fuel injector, including：Oil outlet end, the oil outlet end
The combustion chamber of cylinder is stretched into, the oil outlet end includes：First working chamber, first working chamber are provided with
Multiple first nozzle openings；Second working chamber, in the cavity of first working chamber, second work
The cavity for making chamber is oil inlet passage, and second working chamber is provided with multiple to be connected with the oil inlet passage
Second nozzle opening, second working chamber is provided with the surface of nozzle opening and first working chamber is provided with oil spout
The surface fitting in hole；Second working chamber being capable of first working chamber motion relatively so that described the
One nozzle opening is different from the hole count that second nozzle opening connects.
Optionally, the motion includes rotary motion and/or linear motion.
Optionally, in addition to motor, the motor drive relatively described first work of second working chamber
Chamber rotates；The output shaft of the motor is worm screw, and the outer surface of second working chamber is provided with worm gear, institute
State worm gear and the worm engaging.
Optionally, the motor is configured to connect with electronic control unit, the electronic control unit root
According to the fuel injection amount that engine needs open command is sent to the motor；When the fuel oil that engine needs
When emitted dose increases, the open command is：The motor drives second working chamber to rotate to described
The hole count increase that first nozzle opening connects with second nozzle opening；When the fuel injection amount that engine needs
During reduction, the open command is：The motor drives second working chamber to rotate to the described first spray
The hole count that oilhole connects with second nozzle opening is reduced.
Optionally, end face of first nozzle opening located at first working chamber towards the combustion chamber；
End face of second nozzle opening located at second working chamber towards the combustion chamber.
Optionally, first working chamber and second working chamber are in the form of a column；First nozzle opening is set
In first working chamber towards the end face of the combustion chamber and/or the outer peripheral face of first working chamber；Institute
The second nozzle opening is stated located at end face of second working chamber towards the combustion chamber and/or second work
The outer peripheral face of chamber.
Optionally, the quantity of first nozzle opening and second nozzle opening is 8.
Optionally, in addition to linear electric motors, the linear electric motors drive second working chamber relatively described
First working chamber moves along a straight line along its length.
Optionally, first nozzle opening is located at the outer peripheral face of first working chamber；Second oil spout
Hole is located at the outer peripheral face of second working chamber.
The present invention also provides a kind of fuel injecting method of fuel injector, for controlling the oil spout described in any of the above-described
Device oil spout, including：Obtain on the fuel composition information signal in the cylinder of engine；
The fuel injection amount that engine needs under current working is obtained based on the fuel composition information signal；
Compare current fuel emitted dose and previous fuel injection amount, the current fuel emitted dose is worked as to be described
The fuel injection amount that preceding operating mode engine needs, the previous fuel injection amount are that previous row turner condition is started
The fuel injection amount that machine needs；
When current fuel emitted dose is more than previous fuel injection amount, control second working chamber moves to institute
State the hole count increase that the first nozzle opening connects with second nozzle opening；
When current fuel emitted dose is less than previous fuel injection amount, control second working chamber moves to institute
The hole count that the first nozzle opening connects with second nozzle opening is stated to reduce.
Optionally, the method for obtaining the fuel composition information signal is：Set in the cylinder of engine
Fuel sensor, the fuel sensor gathers the fuel composition information in the cylinder of engine, and sends
Fuel composition information signal corresponding to the fuel composition information.
Optionally, obtaining the method for the fuel injection amount that engine needs under current working includes：According to combustion
Material composition information simultaneously combines the fuel injection amount that MAP spectrum calculating engine needs.
The present invention also provides a kind of electronic control unit, for controlling the fuel injector described in any of the above-described to spray
Oil, including：Signal acquiring unit, for obtaining on the fuel composition information letter in the cylinder of engine
Number；
Computing unit, needed for obtaining engine under current working based on the fuel composition information signal
Fuel injection amount；
Comparing unit, for comparing current fuel emitted dose and previous fuel injection amount, the current fuel
Emitted dose is the fuel injection amount that the current working engine needs, before the previous fuel injection amount is
The fuel injection amount that a line turner condition engine needs；
Command unit, instructed for the instruction of comparative result output first based on the comparing unit or second,
When current fuel emitted dose is more than previous fuel injection amount, the instruction of output first, control described second
Working chamber moves to the hole count increase that first nozzle opening connects with second nozzle opening；
When current fuel emitted dose is less than previous fuel injection amount, the instruction of output second, control described second
Working chamber moves to the hole count that first nozzle opening connects with second nozzle opening and reduced.
The present invention also provides a kind of engine, including the fuel injector described in any of the above-described.
The present invention also provides a kind of automobile, including engine described above.
Optionally, fuel injector oil spout is controlled using the fuel injecting method of the fuel injector described in any of the above-described.
Optionally, in addition to electronic control unit described above.
Compared with prior art, technical scheme has advantages below：
The fuel injector of the present invention includes oil outlet end, and oil outlet end stretches into the combustion chamber of cylinder.The present invention is to oil spout
The oil outlet end of device is improved, and wherein oil outlet end includes：First working chamber and the second working chamber, the second work
Make chamber to be located in the cavity of the first working chamber, equivalent to being arranged another working chamber outside the first working chamber,
The cavity of second working chamber is oil inlet passage.Multiple first nozzle openings are provided with the first working chamber,
Two working chambers are provided with multiple the second nozzle openings connected with oil inlet passage.
Wherein, the second working chamber can move with respect to the first working chamber so that the first nozzle opening and the second spray
The hole count of oilhole connection is different.For example, when engine is in the big load of high speed, the injection of required fuel oil
Amount is big, and the second working chamber is moved with respect to the first working chamber and connected with increasing by the first nozzle opening with the second nozzle opening
Hole count, fuel injection amount increase；When engine is in low speed small load condition, it is necessary to fuel oil spray
The amount of penetrating is small, and the second working chamber moves with respect to the first working chamber to be connected with reducing the first nozzle opening and the second nozzle opening
Logical hole count, fuel injection amount are reduced.
And the second working chamber of the present invention is provided with surface and table of first working chamber provided with nozzle opening of nozzle opening
Face is bonded, and so, the second working chamber can just cover after being moved with respect to the first working chamber and be located at the first working chamber
On the nozzle opening of part first.If the second working chamber is provided with the surface of nozzle opening and the first working chamber is provided with spray
The surface of oilhole is not bonded, and gap between the first nozzle opening and the second nozzle opening be present, no matter the second work
How chamber moves, part first nozzle opening of second working chamber all without covering on the first working chamber,
Also the hole count that the first nozzle opening connects with the second nozzle opening cannot be changed.
Brief description of the drawings
Fig. 1 is the internal structure schematic diagram one of prior art fuel injector, and Fig. 1 shows the non-oil spout of fuel injector；
Fig. 2 is the internal structure schematic diagram two of prior art fuel injector, and Fig. 2 shows that fuel injector carries out oil spout；
Fig. 3 is the structural representation of the oil outlet end of prior art fuel injector；
Fig. 4 is the stereogram one of the fuel injector of the embodiment of the present invention one；
Fig. 5 is the structural representation of the oil outlet end of the first working chamber in the fuel injector of the embodiment of the present invention one；
Fig. 6 is the structural representation of the oil outlet end of the second working chamber in the fuel injector of the embodiment of the present invention one；
The structural representation of oil outlet end when Fig. 7 is the non-oil spout of the fuel injector of the embodiment of the present invention one；
Fig. 8 is that the present invention implements the structural representation that a fuel injector carries out oil outlet end during oil spout；
Fig. 9 is the connection diagram of the fuel injector of the embodiment of the present invention one and motor；
Left view when Figure 10 is the non-oil spout of the fuel injector of the embodiment of the present invention two；
Figure 11 is the stereogram of the fuel injector of the embodiment of the present invention two, when carrying out oil spout there is shown with fuel injector,
The position relationship of first working chamber and the second working chamber；
Left view when Figure 12 is fuel injector oil spout of the embodiment of the present invention.
Embodiment
In the prior art, the hole count of the nozzle opening of fuel injector is immutable, it is impossible to realizes that engine is negative in difference
Under lotus operating mode, to the demand of fuel injection amount.The hole count of the nozzle opening of fuel injector of the present invention is variable, meets
Engine is under which different load operating mode, to the demand of fuel injection amount.
It is understandable to enable the above objects, features and advantages of the present invention to become apparent, below in conjunction with the accompanying drawings
The specific embodiment of the present invention is described in detail.
Embodiment one
With reference to figure 4, the embodiment of the present invention provides a kind of fuel injector, including：Oil outlet end 1, oil outlet end 1 are stretched
Enter the combustion chamber of cylinder.The present invention is improved to the oil outlet end 1 of fuel injector, and wherein oil outlet end 1 includes：
First working chamber 100 and the second working chamber 200, the second working chamber 200 are located at the chamber of the first working chamber 100
In vivo；Equivalent to being arranged another working chamber outside the first working chamber 100, the second working chamber 200
Cavity 201 is oil inlet passage, and fuel oil enters the cavity 201 of the second working chamber 200 and passes through nozzle opening 300
Spray to the combustion chamber of cylinder.
In the present embodiment, with reference to figure 5 and Fig. 6, nozzle opening 300, which is included on the first working chamber 100, to be set
Multiple first nozzle openings 301, and what is set on the second working chamber 200 multiple connect with oil inlet passage
The second nozzle opening 302.The hole count that first nozzle opening 301 connects with the second nozzle opening 302 is exactly this implementation
The hole count of the nozzle opening 300 of fuel injector in example.
Wherein, the second working chamber 200 can move with respect to the first working chamber 100 so that the first nozzle opening
301 is different from the hole count of the second nozzle opening 302 connection；Pass through the He of the first nozzle opening 301 i.e. in the present embodiment
The hole count of second nozzle opening 302 connection changes the hole count of the nozzle opening 300 of fuel injector.
According to engine under different load operating mode, to the demand of fuel injection amount, change nozzle opening 300
Hole count.For example, when engine is in the big load of high speed, required fuel injection amount is big, the second work
Make chamber 200 to move with respect to the first working chamber 100 to increase the first nozzle opening 301 and the second nozzle opening 302
The hole count of connection, the hole count increase of nozzle opening 300, fuel injection amount increase.When engine is in low speed
During small load condition, it is necessary to fuel injection amount it is small, relative first working chamber 100 of the second working chamber 200
Move to reduce the hole count that the first nozzle opening 301 connects with the second nozzle opening 302, the hole of nozzle opening 300
Number is reduced, and fuel injection amount is reduced.
It should be noted that the second working chamber 200 of the embodiment of the present invention is provided with the surface and first of nozzle opening
The surface that working chamber 100 is provided with nozzle opening is bonded, so, 200 relative first working chamber of the second working chamber
The first nozzle opening of part 301 on the first working chamber 100 can be just covered after 100 motions.If the second work
Make surface of the chamber 200 provided with nozzle opening not to be bonded with surface of first working chamber 100 provided with nozzle opening, the
Gap between one nozzle opening 301 and the second nozzle opening 302 be present, no matter how the second working chamber 200 is transported
It is dynamic, part first nozzle opening 301 of second working chamber 200 all without covering on the first working chamber 100,
Also the hole count that the first nozzle opening 301 connects with the second nozzle opening 302 cannot be changed.
The motion of relative first working chamber 100 of the second working chamber 200 of the present invention include rotary motion and/or
Linear motion；That is, the motion can be rotary motion；Either move along a straight line；Either existing rotation
Motion has linear motion again.
Second working chamber, the 200 relative rotary motion of first working chamber 100 in the present embodiment.With reference to figure 9, sheet
In embodiment, fuel injector also includes motor 400, second working chamber of the driving of motor 400,200 relative first work
Make chamber 100 to rotate.In the present embodiment, the output shaft 401 of motor 400 is worm screw, the second working chamber 200
Outer surface be provided with worm gear 500, worm gear 500 and worm engaging.During the output shaft rotation of motor 400, lead to
Cross the engagement of worm and gear so that worm gear 500 also rotates, and then drives the second working chamber 200 to rotate.
In the present embodiment, worm gear structure is not limited to, as long as the second working chamber 200 can be driven relative
The rotary motion of first working chamber 100, any type of mechanism.
In the present embodiment, motor 400 is configured to connect with electronic control unit, electronic control unit root
According to the fuel injection amount that engine needs open command is sent to motor 400.When the fuel oil that engine needs
When emitted dose reduces, the open command is：Motor 400 drives the second working chamber 200 to rotate to first
The hole count that nozzle opening 301 connects with the second nozzle opening 302 is reduced.
In the present embodiment, with reference to 5 and Fig. 6, the hole count of the first nozzle opening 301 and the second nozzle opening 302 is equal
For 8, but 8 are not limited to, can be 10,12 or other quantity in other embodiments.
With reference to figure 7, the initial hole count of the nozzle opening 300 of fuel injector is 8, the fuel injection amount that engine needs
During reduction, motor 400 drives the second working chamber 200 to rotate (as shown in A directions in Fig. 7), reference chart
The hole count of 8 nozzle openings 300 is changed into 6 holes from 8 holes before, and the hole count of nozzle opening 300 reduces, fuel injector
Fuel injection amount reduce.
When the fuel injection amount increase that engine needs, the open command is：The driving of motor 400 the
Two working chambers 200 rotate the hole count increase connected to the first nozzle opening 301 with second nozzle opening 302.
Motor 400 continues to drive the second working chamber 200 to rotate, and the hole count of nozzle opening 300 is changed into 8 holes from 6 holes,
The hole count increase of nozzle opening 300, the fuel injection amount increase of fuel injector.
It should be noted that in the present embodiment, the initial hole count of fuel hole 300 is not limited；Meanwhile send out
Under motivation different load operating mode, nozzle opening hole count is not also limited corresponding to fuel injector amount of fuel.For example,
In the present embodiment, engine is under high load working condition, the increase of fuel injection amount demand, corresponding nozzle opening
300 hole count is 8, can be 10 either 12 or other quantity in other embodiments.
With continued reference to Fig. 4-Fig. 6, in the present embodiment, the first nozzle opening 301 is located at the first working chamber 100
Towards the end face of combustion chamber (not shown)；Second nozzle opening 302 located at the second working chamber 200 towards
The end face of combustion chamber.I.e. nozzle opening 300 is located at the bottom of fuel injector, the second working chamber 200 relative first
Working chamber 100 rotates, and changes the hole count of nozzle opening 300.
When nozzle opening 300 is located at the bottom of fuel injector, the first working chamber 100 and the second working chamber 200
Shape be not limited, can be that the first working chamber 100 and the second working chamber 200 are in the form of a column；Or
First working chamber 100 and the second working chamber 200 are in rectangular-shape, the first working chamber 100 and the second work
Make to need with radial clearance between chamber 200, ensure that the second working chamber can revolve with respect to the first working chamber 100
Turn；Or first working chamber 100 and the second working chamber 200 one of them be in the form of a column, another cuboid
Shape.
In the present embodiment, when the first working chamber 100 and the second working chamber 200 are in the form of a column, fuel injector
Nozzle opening not only can be located at fuel injector bottom, can also be located at fuel injector outer peripheral face.Specifically
The outer peripheral face of the first working chamber 100 is located at for the first nozzle opening 301, the second nozzle opening 302 is located at second
The outer peripheral face of working chamber 200.
The outer peripheral face of first working chamber 100 is needed and the outer peripheral face of the second working chamber 200 is bonded, to ensure the
Gapless between one nozzle opening 301 and the second nozzle opening 302.Second working chamber, 200 relative first work
When chamber 100 rotates, the second working chamber 200 can just cover the part first on the first working chamber 100
Nozzle opening 301, to change the hole count that the first nozzle opening 301 connects with the second nozzle opening 302, realize oil spout
The hole count of the nozzle opening 300 of device is variable.
Embodiment two
In embodiment one, the 200 relative rotary motion of first working chamber 100 of the second working chamber, oil spout is realized
The hole count regulation of the nozzle opening 300 of device.In the present embodiment, 200 relative first working chamber of the second working chamber
100 linear motions, realize the hole count regulation of the nozzle opening 300 of fuel injector.
With reference to figure 10, when 200 relative first working chamber 100 of the second working chamber moves along a straight line, nozzle opening
300 are located at the outer peripheral face of fuel injector, it is impossible to located at the bottom of fuel injector.That is, the first nozzle opening is located at first
The outer peripheral face of working chamber 100；Second nozzle opening 302 is located at the outer peripheral face of the second working chamber 200.This reality
Apply in example, fuel injector also includes linear electric motors (not shown), and linear electric motors drive the second working chamber 200
(as shown in B directions in Figure 10) is moved along a straight line along its length with respect to the first working chamber 100.
For example, the outer peripheral face of the first working chamber 100 is provided with 8 the first nozzle openings, the second working chamber 200
Outer peripheral face be provided with 8 the second nozzle openings；During the non-oil spout of fuel injector, 8 the first nozzle openings and 8 second
Nozzle opening connects, and forms 8 nozzle openings 300 (shown in Figure 10).
When the fuel injection amount that engine needs reduces, with reference to figure 11, the work of linear electric motors driving second
Chamber 200 moves along a straight line along its length with respect to the first working chamber 100；On the outer peripheral face of first working chamber 100
The nozzle opening of part first covered by the outer peripheral face of the second working chamber 200, for example, with reference to figure 12, first
4 the first nozzle openings on the outer peripheral face of working chamber 100 are covered by the outer peripheral face of the second working chamber 200, only
4 nozzle openings 300 are formed, the fuel injection amount of nozzle opening 300 is reduced.
When the fuel injection amount increase that engine needs, linear electric motors drive the second working chamber 200 relative
First working chamber 100 moves along a straight line along its length；The first oil spout on the outer peripheral face of first working chamber 100
Hole all connects with the second nozzle opening on the outer peripheral face of the second working chamber 200, forms 8 nozzle openings 300,
The fuel injection amount increase of nozzle opening 300.
In addition, what 200 relative first working chamber 100 of the second working chamber of driving moved along a straight line along its length
Mechanism is not limited to linear electric motors, other to drive the 200 relative edge of first working chamber 100 of the second working chamber
The mechanism of length direction linear motion.
Embodiment three
In embodiment one, the 200 relative rotary motion of first working chamber 100 of the second working chamber, oil spout is realized
The hole count regulation of the nozzle opening 300 of device.In embodiment two, 200 relative first working chamber of the second working chamber
100 linear motions, realize the hole count regulation of the nozzle opening 300 of fuel injector.In the present embodiment, nozzle opening
300 are located at the outer peripheral face of fuel injector.That is, the first nozzle opening is located at the outer peripheral face of the first working chamber 100；The
Two nozzle openings 302 are located at the outer peripheral face of the second working chamber 200.Second working chamber 200 both can be with respect to
The rotary motion of one working chamber 100, realize the hole count regulation of the nozzle opening 300 of fuel injector；It can also be
Two working chambers, 200 relative first working chamber 100 moves along a straight line, and realizes the hole of the nozzle opening 300 of fuel injector
Number regulation.
Example IV
The present embodiment provides a kind of fuel injecting method of fuel injector, for controlling any of the above-described described fuel injector
Oil spout, including：Obtain on the fuel composition information signal in the cylinder of engine；Based on the fuel
Form information signal and obtain the fuel injection amount that engine needs under current working；Compare current fuel injection
Amount and previous fuel injection amount, the current fuel emitted dose are the combustion that the current working engine needs
Oil spurts amount, the previous fuel injection amount are the fuel injection amount that previous row turner condition engine needs.
When current fuel emitted dose is more than previous fuel injection amount, control second working chamber 200 moves
The hole count increase connected to first nozzle opening 301 with second nozzle opening 302；Work as current fuel
Emitted dose is less than previous fuel injection amount, controls second working chamber 200 to move to first oil spout
The hole count that hole 301 connects with second nozzle opening 302 is reduced.
In the present embodiment, motion includes rotary motion and linear motion.
In the present embodiment, the method for obtaining the fuel composition information signal is：In the cylinder of engine
Fuel sensor is set, the fuel sensor gathers the fuel composition information in the cylinder of engine, and
Send the fuel composition information signal corresponding to the fuel composition information.
Obtaining the method for the fuel injection amount that engine needs under current working includes：Believed according to fuel composition
Cease and combine MAP spectrum and calculate the fuel injection amount that engine needs.
MAP spectrum is initial fuel injection arteries and veins spectrogram, is the oil spout data being present in Engine ECU, is led to
A three-dimensional character curved surface is often formed by throttle opening, engine speed and fuel injection pulsewidth three, it is discrete
After form arteries and veins spectrogram, tabled look-up use for electric-control system.Initial fuel injection arteries and veins spectrum typically passes through traditional bench test
Method is demarcated, during concrete operations, fixed throttle opening, by adjusting hydraulic dynamometer outlet valve
Change the external load being applied on gasoline engine, and then change rotating speed, after stabilization of speed, record is current
Throttle opening, rotating speed and the fuel injection pulsewidth of operating mode；Change throttle opening, repeat aforesaid operations, it is whole
Reason data can obtain initial fuel injection arteries and veins spectrum.
Embodiment five
The present embodiment also provides a kind of electronic control unit, for controlling any of the above-described described fuel injector spray
Oil, including：
Signal acquiring unit, for obtaining on the fuel composition information signal in the cylinder of engine；
Computing unit, needed for obtaining engine under current working based on the fuel composition information signal
Fuel injection amount；
Comparing unit, for comparing current fuel emitted dose and previous fuel injection amount, the current fuel
Emitted dose is the fuel injection amount that the current working engine needs, before the previous fuel injection amount is
The fuel injection amount that a line turner condition engine needs；
Command unit, instructed for the instruction of comparative result output first based on the comparing unit or second,
When current fuel emitted dose is more than previous fuel injection amount, the instruction of output first, control described second
Working chamber moves to the hole count increase that first nozzle opening connects with second nozzle opening；When current combustion
Oil spurts amount is less than previous fuel injection amount, the instruction of output second, controls second working chamber to move to
The hole count that first nozzle opening connects with second nozzle opening is reduced.
The motion includes rotary motion and/or linear motion.
Electronic control unit is Engine ECU in the present embodiment, and Engine ECU operates shape according to engine
Condition determines optimal distributive value, to match with air inflow, makes the air-fuel ratio of operating mode at that time optimal；So hair
Controls of the motivation ECU to air-fuel ratio is by being completed to the control of fuel injection amount.Engine works
When, Engine ECU obtains the information of air mass flow from sensor, by determining distributive value after some calculating,
So that the air-fuel ratio of gaseous mixture reaches value set in advance.
In whole process, the control instruction of Engine ECU output is the control of a triggering fuel injector
Signal, in this fuel injection signal, Engine ECU controls pulsewidth and the moment of signal, and oil spout
The pulsewidth of signal determines the number of distributive value.
The embodiment of the present invention also provides a kind of engine, including any of the above-described described fuel injector.
The embodiment of the present invention also provides a kind of automobile, including above-mentioned engine, using any of the above-described described
The fuel injecting method control fuel injector oil spout of fuel injector.
The automobile of the present embodiment also includes electronic control unit described above.
Although present disclosure is as above, the present invention is not limited to this.Any those skilled in the art,
Without departing from the spirit and scope of the present invention, can make various changes or modifications, therefore the guarantor of the present invention
Shield scope should be defined by claim limited range.
Claims (17)
1. a kind of fuel injector, including：Oil outlet end, the oil outlet end stretch into the combustion chamber of cylinder, it is characterised in that
The oil outlet end includes：
First working chamber, first working chamber are provided with multiple first nozzle openings；
Second working chamber, in the cavity of first working chamber, the cavity of second working chamber is
Oil inlet passage, second working chamber are provided with multiple the second nozzle openings connected with the oil inlet passage,
Second working chamber is provided with the surface of nozzle opening and first working chamber is provided with the surface patch of nozzle opening
Close；
Second working chamber being capable of first working chamber motion relatively so that first nozzle opening with
The hole count of the second nozzle opening connection is different.
2. fuel injector as claimed in claim 1, it is characterised in that it is described motion include rotary motion and/or directly
Line moves.
3. fuel injector as claimed in claim 2, it is characterised in that also drive institute including motor, the motor
The second working chamber is stated to rotate relative to first working chamber；The output shaft of the motor is worm screw, described
The outer surface of second working chamber is provided with worm gear, the worm gear and the worm engaging.
4. fuel injector as claimed in claim 3, it is characterised in that the motor is configured to and Electronic Control
Unit is connected, and the electronic control unit is sent out according to the fuel injection amount that engine needs to the motor
Send open command；
When the fuel injection amount increase that engine needs, the open command is：The motor drives institute
State the second working chamber and rotate the hole count increase connected to first nozzle opening with second nozzle opening；
When the fuel injection amount that engine needs reduces, the open command is：The motor drives institute
State the second working chamber and rotate the hole count reduction connected to first nozzle opening with second nozzle opening.
5. fuel injector as claimed in claim 1, it is characterised in that
End face of first nozzle opening located at first working chamber towards the combustion chamber；
End face of second nozzle opening located at second working chamber towards the combustion chamber.
6. fuel injector as claimed in claim 1, it is characterised in that first working chamber and second work
It is in the form of a column as chamber；
First nozzle opening is located at first working chamber towards the end face of the combustion chamber and/or described the
The outer peripheral face of one working chamber；
Second nozzle opening is located at second working chamber towards the end face of the combustion chamber and/or described the
The outer peripheral face of two working chambers.
7. fuel injector as claimed in claim 1, it is characterised in that first nozzle opening and second spray
The quantity of oilhole is 8.
8. fuel injector as claimed in claim 2, it is characterised in that also including linear electric motors, the straight-line electric
Machine drives relatively described first working chamber of the second working chamber to move along a straight line along its length.
9. fuel injector as claimed in claim 8, it is characterised in that first nozzle opening is located at described first
The outer peripheral face of working chamber；Second nozzle opening is located at the outer peripheral face of second working chamber.
10. a kind of fuel injecting method of fuel injector, for controlling the fuel injector oil spout described in claim any one of 1-9,
It is characterised in that it includes：
Obtain on the fuel composition information signal in the cylinder of engine；
The fuel injection amount that engine needs under current working is obtained based on the fuel composition information signal；
Compare current fuel emitted dose and previous fuel injection amount, the current fuel emitted dose is worked as to be described
The fuel injection amount that preceding operating mode engine needs, the previous fuel injection amount are that previous row turner condition is started
The fuel injection amount that machine needs；
When current fuel emitted dose is more than previous fuel injection amount, control second working chamber moves to institute
State the hole count increase that the first nozzle opening connects with second nozzle opening；
When current fuel emitted dose is less than previous fuel injection amount, control second working chamber moves to institute
The hole count that the first nozzle opening connects with second nozzle opening is stated to reduce.
11. the fuel injecting method of fuel injector as claimed in claim 10, it is characterised in that obtain the fuel composition
The method of information signal is：Fuel sensor, the fuel sensor are set in the cylinder of engine
The fuel composition information in the cylinder of engine is gathered, and is sent corresponding to the fuel composition information
Fuel composition information signal.
12. the fuel injecting method of fuel injector as claimed in claim 10, it is characterised in that obtain current working and issue
The method for the fuel injection amount that motivation needs includes：According to fuel composition information and combine MAP spectrum
Calculate the fuel injection amount that engine needs.
13. a kind of electronic control unit, for controlling the fuel injector oil spout described in claim any one of 1-9, its
It is characterised by, including：
Signal acquiring unit, for obtaining on the fuel composition information signal in the cylinder of engine；
Computing unit, needed for obtaining engine under current working based on the fuel composition information signal
Fuel injection amount；
Comparing unit, for comparing current fuel emitted dose and previous fuel injection amount, the current fuel
Emitted dose is the fuel injection amount that the current working engine needs, before the previous fuel injection amount is
The fuel injection amount that a line turner condition engine needs；
Command unit, instructed for the instruction of comparative result output first based on the comparing unit or second,
When current fuel emitted dose is more than previous fuel injection amount, the instruction of output first, control described second
Working chamber moves to the hole count increase that first nozzle opening connects with second nozzle opening；
When current fuel emitted dose is less than previous fuel injection amount, the instruction of output second, control described second
Working chamber moves to the hole count that first nozzle opening connects with second nozzle opening and reduced.
14. a kind of engine, it is characterised in that including the fuel injector described in claim any one of 1-9.
15. a kind of automobile, it is characterised in that including the engine described in claim 14.
16. automobile as claimed in claim 15, it is characterised in that using described in claim any one of 10-12
Fuel injector fuel injecting method control fuel injector oil spout.
17. automobile as claimed in claim 15, it is characterised in that also including the electronics described in claim 13
Control unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610396677.0A CN107461287A (en) | 2016-06-06 | 2016-06-06 | Fuel injector and its fuel injecting method, electronic control unit, engine and automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610396677.0A CN107461287A (en) | 2016-06-06 | 2016-06-06 | Fuel injector and its fuel injecting method, electronic control unit, engine and automobile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107461287A true CN107461287A (en) | 2017-12-12 |
Family
ID=60544947
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610396677.0A Pending CN107461287A (en) | 2016-06-06 | 2016-06-06 | Fuel injector and its fuel injecting method, electronic control unit, engine and automobile |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107461287A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108267558A (en) * | 2018-01-19 | 2018-07-10 | 五矿勘查开发有限公司 | Water environment monitoring device and method |
| CN111927665A (en) * | 2020-07-10 | 2020-11-13 | 张存劳 | Novel rotary type oil sprayer |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2948451A1 (en) * | 1979-12-01 | 1981-06-04 | Robert Bosch Gmbh, 7000 Stuttgart | Fuel injector for IC engine - has push rod upstream of valve determining cross=section of injection openings |
| DE3623364A1 (en) * | 1986-07-11 | 1988-01-21 | Bosch Gmbh Robert | Fuel injection nozzle for internal combustion engines |
| CN1130719A (en) * | 1994-11-15 | 1996-09-11 | 株式会社泽克西尔 | Variable injection hole type fuel injection nozzle |
| CN1132119A (en) * | 1994-11-25 | 1996-10-02 | 株式会社泽克西尔 | Variable injection hole type fuel injection nozzle |
| CN102220924B (en) * | 2010-04-15 | 2013-10-09 | 曼柴油机欧洲股份公司曼柴油机德国分公司 | A fuel valve for large stroke diesel engines |
| CN203532101U (en) * | 2013-09-24 | 2014-04-09 | 吉林大学 | Device with variable fuel gas injection position and number of nozzles |
| CN103967671A (en) * | 2014-05-22 | 2014-08-06 | 中国北方发动机研究所(天津) | Dual-valve orifice-area-variable fuel nozzle |
-
2016
- 2016-06-06 CN CN201610396677.0A patent/CN107461287A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2948451A1 (en) * | 1979-12-01 | 1981-06-04 | Robert Bosch Gmbh, 7000 Stuttgart | Fuel injector for IC engine - has push rod upstream of valve determining cross=section of injection openings |
| DE3623364A1 (en) * | 1986-07-11 | 1988-01-21 | Bosch Gmbh Robert | Fuel injection nozzle for internal combustion engines |
| CN1130719A (en) * | 1994-11-15 | 1996-09-11 | 株式会社泽克西尔 | Variable injection hole type fuel injection nozzle |
| CN1132119A (en) * | 1994-11-25 | 1996-10-02 | 株式会社泽克西尔 | Variable injection hole type fuel injection nozzle |
| CN102220924B (en) * | 2010-04-15 | 2013-10-09 | 曼柴油机欧洲股份公司曼柴油机德国分公司 | A fuel valve for large stroke diesel engines |
| CN203532101U (en) * | 2013-09-24 | 2014-04-09 | 吉林大学 | Device with variable fuel gas injection position and number of nozzles |
| CN103967671A (en) * | 2014-05-22 | 2014-08-06 | 中国北方发动机研究所(天津) | Dual-valve orifice-area-variable fuel nozzle |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108267558A (en) * | 2018-01-19 | 2018-07-10 | 五矿勘查开发有限公司 | Water environment monitoring device and method |
| CN111927665A (en) * | 2020-07-10 | 2020-11-13 | 张存劳 | Novel rotary type oil sprayer |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| DE102006010768B4 (en) | Method and apparatus for improving the smoothness of an internal combustion engine during cranking | |
| DE102011012917B4 (en) | Fuel management systems for engines with variable displacement | |
| US20120158270A1 (en) | Active fuel management systems and methods for vehicles with a manual transmission | |
| JP2006144793A (en) | Method and system for controlling stop position of crank shaft by use of fluid pump during stop of internal combustion engine | |
| JP6011714B2 (en) | Control device and control method for internal combustion engine | |
| DE102013216512A1 (en) | METHOD AND SYSTEM FOR OPERATING A MOTOR TURBOCHARGER | |
| CN107461287A (en) | Fuel injector and its fuel injecting method, electronic control unit, engine and automobile | |
| CN105736156B (en) | Unmanned helicopter engine determines method for controlling number of revolution and control system | |
| DE102013216522A1 (en) | Method and system for improving the stopping and starting of a turbocharged engine | |
| CN107559098A (en) | For the system and method based on piston temperature deviation control engine | |
| CN102213150A (en) | Method and system for enabling cylinder balancing at low idle speed using crankshaft speed sensor | |
| EP0936354A3 (en) | Electronic control device | |
| DE10310301A1 (en) | Method and control of an internal combustion engine in a start-stop operation | |
| DE102011113469B4 (en) | Control module calibration procedure for a control unit of a vehicle | |
| JP2012237321A5 (en) | ||
| DE102011008737B4 (en) | Internal combustion engine, diagnostic device for an internal combustion engine and method for adjusting an internal combustion engine | |
| CN204663685U (en) | A kind of engine electronic control unit and engine control system | |
| CN208633931U (en) | Accelerator control device and agricultural equipment | |
| CN203756349U (en) | Control system for engine oil pump | |
| CN107869394A (en) | A kind of electronic governor actuator for diesel engine | |
| CN205714454U (en) | Electric-control common-rail type diesel injection system | |
| DE2233777C3 (en) | Fuel and air metering device for a mixture-compressing spark-ignited internal combustion engine | |
| JP2543880B2 (en) | Engine fuel supply | |
| DE19924053A1 (en) | Device for registering rotational speed and phase position at rotating components in IC engine of vehicle has sensor module that includes at least two sensors each assigned to sense angle and reference marks on rotating components | |
| DE2912633A1 (en) | FUEL INJECTION DEVICE FOR MIXTURE COMPRESSING INTERNAL COMBUSTION ENGINES |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20171212 |
|
| RJ01 | Rejection of invention patent application after publication |