CN105378262A - Fuel injection valve for internal combustion engine - Google Patents
Fuel injection valve for internal combustion engine Download PDFInfo
- Publication number
- CN105378262A CN105378262A CN201480038383.XA CN201480038383A CN105378262A CN 105378262 A CN105378262 A CN 105378262A CN 201480038383 A CN201480038383 A CN 201480038383A CN 105378262 A CN105378262 A CN 105378262A
- Authority
- CN
- China
- Prior art keywords
- fuel
- injection pump
- piston
- combustion engine
- 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
- F02M59/00—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps
- F02M59/02—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps of reciprocating-piston or reciprocating-cylinder type
- F02M59/10—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps of reciprocating-piston or reciprocating-cylinder type characterised by the piston-drive
-
- 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
- F02M57/00—Fuel-injectors combined or associated with other devices
- F02M57/02—Injectors structurally combined with fuel-injection pumps
- F02M57/022—Injectors structurally combined with fuel-injection pumps characterised by the pump drive
- F02M57/027—Injectors structurally combined with fuel-injection pumps characterised by the pump drive 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)
Abstract
The invention relates to a fuel injection pump (12) for an internal combustion engine, comprising a cylinder arrangement (22, 24) having an axially displaceable piston (26) and a connection for a pressure-controlled injection valve (18, 20). According to the invention, the fuel injection valve (12) comprises an electromagnetic actuation device (28), said actuation device enabling the piston (26) to be moved in a first axial direct an in a second axial direction which is counter to the first.
Description
Technical field
The present invention relates to a kind of fuel-injection pump according to claim 1 preamble and according to the fuel container of claim arranged side by side, fuel system and method.
Background technique
Become known for the fuel system of internal-combustion engine by market, in these fuel system, fuel to be pumped out from fuel container by petrolift and is such as transported under stress high pressure accumulator (rail).High pressure accumulator is connected with the injection valve of internal-combustion engine, and these injection valves can manipulate respectively and fuel can be ejected in the firing chamber of internal-combustion engine with the amount of wishing respectively.Also known so-called unit fuel injector or pump-pipeline-nozzle assembly, wherein, fuel is directly flowed to pressure controlled injection valve by petrolift.Also the known ejecting system with distributor-jet pump.
Summary of the invention
The present invention based on problem solve by fuel-injection pump according to claim 1 and by the fuel container according to claim arranged side by side, fuel system and method.Provide favourable expansion scheme in the dependent claims.Also be present in specification below and accompanying drawing for the feature that the present invention is important, wherein, described feature can various combination ground be also both important for the present invention individually, no longer explicitly pointed out this.
The present invention has the following advantages: fuel-injection pump can especially efficiently and implement comparatively speaking at this simply light and cost advantages.This fuel-injection pump also can be optimized according to the requirement of the less internal-combustion engine being particularly useful for scooter in like fashion.Such as the fuel quantity of necessity also can be flowed to injection valve by this fuel-injection pump in the relatively high-revolving situation of internal-combustion engine, and injection valve injects fuel in firing chamber.Because utilize hydraulic transmission than producing high fuel-injection pump working pressure, so fuel spraying fine and well distributed especially in a combustion chamber can be realized by injection valve by magnetic force.Can construct especially compactly according to fuel-injection pump of the present invention and such as especially roughly there is the installation volume of previously known vaporizer.
The present invention relates to the fuel-injection pump for internal-combustion engine, have cylinder component, this cylinder component has can the piston of axial motion and the joint for especially pressure controlled injection valve.According to the present invention, described fuel-injection pump comprises the Effector of electromagnetic type, and by this Effector, piston can move along the first axial direction and the second axial direction contrary with it.Thus, two axial motion directions of piston all can be effectively utilized for the operation of fuel-injection pump.
According to a kind of configuration and a kind of fuel system comprising this fuel-injection pump of described fuel-injection pump, and according to a kind of method for running this fuel-injection pump, be used in Fuelinjection nozzle upstream sets up fuel pressure, to run injection valve to fuel-injection pump of the present invention on the one hand.Such as, fuel-injection pump can by fuel area density in high pressure accumulator, and injection valve can obtain from described high pressure accumulator the fuel quantity needed respectively.But on the other hand, according to fuel-injection pump of the present invention also can indirectly or directly by fuel delivery to being used for fuel metering to be ejected into injection valve in combustion chambers of internal combustion engines.This possibility also can explained more below in detail.
In a kind of configuration of described fuel-injection pump, the first axial end portion section of described piston and the first working room acting in conjunction of described cylinder component, and, the second axial end portion section of described piston and the second working room acting in conjunction of described cylinder component.Realize what is called " double-stroke pump " thus in a straightforward manner, it preferably implements symmetrically for the first working room and the second working room.The advantage of described double-stroke pump is, in each motion, namely not only on the first axial direction but also on the second axial direction, can aspirate and transfer the fuel simultaneously, thus, can work especially efficiently although this fuel-injection pump size is little.
Also can arrange, described electromagnetically-operated device has the armature and at least one first coil and the second coil that are coupled with described piston, wherein, described armature can move by the first coil and move on the second axial direction by the second coil on the first axial direction.Preferably, the first coil and the second coil (electromagnetic coil) same way ground are implemented and also arrange in the same manner with regard to armature and piston, and described double-stroke pump is completely symmetrically implemented.Thus, can use especially in many aspects according to fuel-injection pump of the present invention.At this, described fuel-injection pump only has a small amount of parts, and this had both simplified manufacture and also simplify operation.
Arrange in another kind of configuration, housing and/or the safety check of described fuel-injection pump are manufactured by plastics respectively.The manufacture of described Fuelinjection nozzle can be made thus more cheap, wherein, weight and cost can be simplified.
The invention still further relates to the fuel container for internal combustion engine fuel system, wherein, according to the present invention, the fuel-injection pump of one of configuration that integrated basis illustrates above in this fuel container.Installing space can be saved thus and reduce costs.
The invention still further relates to the fuel system for internal-combustion engine, wherein, according to the present invention, described fuel system comprises the fuel-injection pump according to one of the configuration illustrated above.At this, the first working room is hydraulically connected with the first injection valve and the second working room is hydraulically connected with the second injection valve.Can also implement as the fuel system with the internal-combustion engine of two cylinders relatively common in scooter especially simply, efficiently in like fashion cost advantages.
The invention still further relates to the method for running the fuel-injection pump as illustrated in multiple configuration above.According to the present invention, come given in advance for the intensity of the manipulation pulse of described electromagnetic type Effector and/or endurance emitted dose desirably.This is possible, because fuel-injection pump according to the present invention comprises " linear actuating device ", and is not have the cycle given in advance forcibly as in the fuel-injection pump of rotary driving.Thus, can use according to fuel-injection pump of the present invention especially in many aspects and run.Thus, especially match with pressure controlled injection valve, the simple power that can realize internal-combustion engine controls.
Accompanying drawing explanation
Below with reference to the accompanying drawings illustrative embodiments of the present invention is explained.Shown in accompanying drawing:
Fig. 1 is used for the schematic diagram with the fuel system of a fuel-injection pump and two injection valves of internal-combustion engine;
Fig. 2 is with the schematic diagram of the fuel container of the fuel-injection pump of Fig. 1;
Fig. 3 is for running the flow chart of the method for fuel-injection pump and fuel system.
In all the drawings, even if in various embodiments, identical reference character is used to the element of functional equivalent and parameter.
Embodiment
Fig. 1 illustrates the fuel system 10 of (unshowned) scooter two-cycle engine for such as having 50ccm to 125ccm discharge capacity with schematic diagram.Dotted line frame in the middle of accompanying drawing comprises the fuel-injection pump 12 being embodied as " double-stroke pump ".This fuel-injection pump 12 to be implemented symmetrically about unshowned vertical axis in the accompanying drawings current and be attached to respectively by fuel conduit 14 and 16 on pressure controlled and the first injection valve 18 outwards opened and the second injection valve and 20.Second injection valve 20 is only needs when two-cycle engine, is therefore optional.
Fuel-injection pump 12 has cylinder component, and this cylinder component has two cylinders 22 and 24 and can at the piston 26 (double-piston) of axial motion wherein.The moving direction of piston 26 is level in FIG.First axial end portion section (in the accompanying drawings on the left side) and the first working room 22a acting in conjunction formed in cylinder 22 of piston 26, the second axial end portion section (in the accompanying drawings on the right) and the second working room 24a acting in conjunction formed in cylinder 22 of piston 26.Fuel-injection pump 12 also comprises electromagnetically-operated device 28, and it has two electromagnetic coils 30 and 32 (coil), and between described two electromagnetic coils, be furnished with armature 34, this armature is preferably coupled rigidly with piston 26.Therefore, armature 34 and can along first axial direction move by electromagnetic coil 30 with the piston 26 that this armature is coupled and move along the second axial direction contrary with the first axial direction by electromagnetic coil 32.
First working room 22a is hydraulically connected with the first inlet valve 36 and the first outlet valve 38.First inlet valve 36 can be opened towards the first working room 22a and is attached on case 44 by fuel conduit 37.First outlet valve 38 can be opened and be attached on fuel conduit 14 on the flow direction leaving the first working room 22a.
Second working room 24a is hydraulically connected with the second inlet valve 40 and the second outlet valve 42.Second inlet valve 40 can be opened towards the second working room 24a and is attached on case 44 by fuel conduit 41.Second outlet valve 42 can be opened and be attached on fuel conduit 16 on the flow direction leaving the second working room 24a.
Inlet valve 36 and 40 and outlet valve 38 and 42 are embodied as spring-loaded safety check current and manufactured by plastics.Electromagnetic coil 30 and 32 is attached on control circuit 46 by electric lead 31 and 33.Control circuit 46 is configured to (such as given in advance by the Emissions requirements) time in correspondence and goes up manipulation first electromagnetic coil 30 or electromagnetic coil 32 in the endurance of (such as given in advance by the power requirements of the user of internal-combustion engine) of correspondence, or does not manipulate electromagnetic coil 30 and 32.Control circuit 46 is by control and/or controlling device 48 controls, and this control and/or controlling device illustrate in the accompanying drawings above control circuit 46.
In FIG in the section of below, the fuel conduit (without reference character) between injection valve 18 and 20 marked symbol 50.Depending on the mode of execution of fuel system 10, this symbol 50 can represent:
Only there is an injection valve 18 in situation (a), it had both been connected with fuel conduit 14 and has also been connected with fuel conduit 16.
There is injection valve 18 and 20 in situation (b), there is not direct hydraulic connecting between which.That is, injection valve 18 to be attached on fuel conduit 14 and injection valve 20 is attached on fuel conduit 16.
In situation (a) it is possible that fuel-injection pump 12 piston 26 in, reciprocating motion all to transfer the fuel in fuel conduit 14 and 16, therefore, pressure controlled injection valve 18 can each toward and multiple motion in open and burner oil.During no current, namely when Fuelinjection nozzle 12 is not handled, injection valve 18 cuts out.Very high rotating speed can be realized thus in single-cylinder engine situation.
Implement fuel in situation (b) it is possible that in two of internal combustion engine firing chambers to spray.At this, synchronously carry out (the same with the other side above in situation (a)) manipulation to electromagnetic coil 30 and 32 with the rotary motion of I. C. engine crankshaft.
Can imagine in alternate embodiments, cancelling valve 38 and 42, because their function can be born by injection valve 18 and 20.Can imagine in another kind of alternate embodiments, replace injection valve 18 and 20 and use atomizer nozzle, because injection valve 18 and 20 works in the same direction with outlet valve 38 and 42 and thus can be cancelled where necessary on hydraulic pressure.
When fuel system 10 is run corresponding to situation (b), fuel sprays such as to be implemented in the following manner by the first injection valve 18:
-in a first step, piston 26 generally within be in the accompanying drawings the right position, and, all power-off of two electromagnetic coils 30 and 32.Inlet valve 36 and 40 and outlet valve 38 and 42 are closed.
-in the second step, to be energized to electromagnetic coil 30 and armature 34 and piston 26 accelerate left in the accompanying drawings by magnetic force.The volume of the first working room 22a is made to reduce and the increase of the volume of the second working room 24a thus.First outlet valve 38 and the second inlet valve 40 are opened because the fuel pressure local produced respectively changes.
Thus, based on the Stress control of injection valve 18 and 20, the first injection valve 18 is opened, and fuel is injected in the firing chamber of internal-combustion engine thus.Be ejected into the axial stroke sign that the fuel quantity in firing chamber is passed by essentially by piston 26.If injection valve 18 and 20 is can the mode handled of electromagnetic type implement, then basic the opening with the first outlet valve 38 of the first injection valve 18 is side by side controlled and/or controlling device 48 manipulates and thus temporarily opens.
By the second inlet valve 40 opened, fuel is inhaled into the second working room 24a from case 44 through fuel conduit 41.Thus, fuel-injection pump 12 can realize from the first working room 22a transfer the fuel simultaneously and is drawn into by fuel the second working room 24a.
-in third step, control and/or controlling device 48 manipulation of fuel injection amount termination to the first electromagnetic coil 30 desirably.Armature 34 and piston 26 impact type ground stop on the left side position in the accompanying drawings, and the first outlet valve 38 and the second inlet valve 40 can be closed.Preferably, described " left position " corresponding to the left side terminal backstop of armature 34 or piston 26, does not make fuel-injection pump 12 also have surplus for the fuel quantity that will spray larger if desired.
-the 4th step is afterwards corresponding to first step described above, and wherein, the operation of fuel system 10 or fuel-injection pump 12 is carried out about the vertical axis (not shown) in portion in the accompanying drawings and first step specular.Then process described above is repeated continuously.
Fig. 2 illustrates the fuel container 52 for fuel system 10, wherein, is integrated with the fuel-injection pump 12 of Fig. 1 in fuel container 52.Can see, shown assembly only needs installing space little especially, and in addition, fuel-injection pump 12 is to be arranged by the mode of mechanical protection.The housing 53 of fuel-injection pump 12 and inlet valve 36 and 40, outlet valve 38 and 42 (see Fig. 1) are manufactured by plastics current.In a kind of preferred implementation of fuel-injection pump 12, inlet valve 36 and 40 and outlet valve 38 and 42 are arranged in the mode be integrated in housing 53.Dotted border identification box 44 in Fig. 2, this case preferably complete or major part is equal to the housing (without reference character) of fuel container 52.In a not shown embodiment, fuel-injection pump 12 schematic diagram that is similar to Fig. 1 is arranged in the mode of separating with fuel container 52 or case 44.
Fig. 3 illustrates the flow chart of the method for running fuel-injection pump 12.Described method is preferably implemented by the computer program in control and/or controlling device 48.From module 54s, in ensuing module 56, know the fuel quantity that will spray respectively of the respective combustion chamber for internal-combustion engine.This especially according to the gas regulator of scooter in other words gas pedal position and carry out according to the current rotating speed of internal-combustion engine.
In module 58 afterwards, know the angle of the current location of piston 26 and the bent axle of moving direction and/or internal-combustion engine.The fuel quantity that will spray desirably knows intensity for the control impuls of electromagnetic coil 30 or 32 and/or endurance thus, and correspondingly maneuvering and control circuit 46.Illustrated routines periodically ground repeats.This illustrates in figure 3 by a dotted line.
Claims (7)
1. for the fuel-injection pump (12) of internal-combustion engine, there is cylinder component (22,24), described cylinder component have can axial motion piston (26) and for especially pressure controlled injection valve (18,20) joint, it is characterized in that, described fuel-injection pump comprises electromagnetic type Effector (28), by described electromagnetic type Effector, described piston (26) can move on the first axial direction and on the second axial direction contrary with this first axial direction.
2. fuel-injection pump (12) as claimed in claim 1, it is characterized in that, first axial end portion section of described piston (26) and described cylinder component (22,24) the first working room (22a) acting in conjunction, and, second working room (24a) acting in conjunction of the second axial end portion section of described piston (26) and described cylinder component (22,24).
3. fuel-injection pump (12) as claimed in claim 1 or 2, it is characterized in that, described electromagnetic type Effector (28) has the armature (34) and at least one the first coil and the second coil (30 that are coupled with described piston (26), 32), wherein, described armature (34) can move by described first coil (30) and move on the second axial direction by described second coil (32) on the first axial direction.
4. fuel-injection pump (12) as claimed in claim 3, it is characterized in that, the housing (53) of described fuel-injection pump (12) and/or safety check (36,38,40,42) are manufactured by plastics respectively.
5. for the fuel container (52) of the fuel system (10) of internal-combustion engine, it is characterized in that, in described fuel container, be integrated with the fuel-injection pump (12) in as Claims 1-4 as described at least one.
6. for the fuel system (10) of internal-combustion engine, it is characterized in that, described fuel system (10) comprises as the fuel-injection pump (12) in claim 1 to 5 as described at least one, and, described first working room (22a) is hydraulically connected with the first injection valve (18), and described second working room (24a) is hydraulically connected with the second injection valve (20).
7. for running the method as the fuel-injection pump (12) in Claims 1-4 as described at least one, it is characterized in that, come given in advance for the intensity of the manipulation pulse of described electromagnetic type Effector (28) and/or endurance emitted dose desirably.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102013212832.0 | 2013-07-02 | ||
| DE201310212832 DE102013212832A1 (en) | 2013-07-02 | 2013-07-02 | Fuel injection pump for an internal combustion engine |
| PCT/EP2014/063685 WO2015000804A1 (en) | 2013-07-02 | 2014-06-27 | Fuel injection valve for an internal combustion engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105378262A true CN105378262A (en) | 2016-03-02 |
Family
ID=51033209
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201480038383.XA Pending CN105378262A (en) | 2013-07-02 | 2014-06-27 | Fuel injection valve for internal combustion engine |
Country Status (3)
| Country | Link |
|---|---|
| CN (1) | CN105378262A (en) |
| DE (1) | DE102013212832A1 (en) |
| WO (1) | WO2015000804A1 (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3754154A (en) * | 1971-02-08 | 1973-08-21 | P Massie | Sealed pump and drive therefor |
| US20030098015A1 (en) * | 2001-11-10 | 2003-05-29 | Robert Bosch Gmbh | Fuel injection apparatus for an internal combustion engine |
| CN1840887A (en) * | 2005-03-29 | 2006-10-04 | 罗伯特·博世有限公司 | Fuel jet device for internal combustion engine |
| CN102086817A (en) * | 2009-12-04 | 2011-06-08 | 通用汽车环球科技运作有限责任公司 | Method for real-time, self-learning identification of fuel injectors during engine operation |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6289869B1 (en) * | 1997-09-12 | 2001-09-18 | George D. Elliott | Electromagnetic fuel ram-injector and improved ignitor |
| CN1133810C (en) * | 2001-02-16 | 2004-01-07 | 郗大光 | Electronic fuel oil jetter |
| DE102009006630B4 (en) * | 2009-01-29 | 2016-12-15 | Continental Automotive Gmbh | high pressure pump |
-
2013
- 2013-07-02 DE DE201310212832 patent/DE102013212832A1/en not_active Withdrawn
-
2014
- 2014-06-27 WO PCT/EP2014/063685 patent/WO2015000804A1/en active Application Filing
- 2014-06-27 CN CN201480038383.XA patent/CN105378262A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3754154A (en) * | 1971-02-08 | 1973-08-21 | P Massie | Sealed pump and drive therefor |
| US20030098015A1 (en) * | 2001-11-10 | 2003-05-29 | Robert Bosch Gmbh | Fuel injection apparatus for an internal combustion engine |
| EP1310666A3 (en) * | 2001-11-10 | 2004-02-04 | Robert Bosch Gmbh | Fuel injection system for internal combustion engine |
| CN1840887A (en) * | 2005-03-29 | 2006-10-04 | 罗伯特·博世有限公司 | Fuel jet device for internal combustion engine |
| CN1840887B (en) * | 2005-03-29 | 2011-01-26 | 罗伯特·博世有限公司 | Fuel jet device for internal combustion engine |
| CN102086817A (en) * | 2009-12-04 | 2011-06-08 | 通用汽车环球科技运作有限责任公司 | Method for real-time, self-learning identification of fuel injectors during engine operation |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2015000804A1 (en) | 2015-01-08 |
| DE102013212832A1 (en) | 2015-01-08 |
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| C06 | Publication | ||
| PB01 | Publication | ||
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| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20160302 |