CN101886597A - Be provided with the compact injection device of the sparger of inwardly opening - Google Patents
Be provided with the compact injection device of the sparger of inwardly opening Download PDFInfo
- Publication number
- CN101886597A CN101886597A CN2010101767050A CN201010176705A CN101886597A CN 101886597 A CN101886597 A CN 101886597A CN 2010101767050 A CN2010101767050 A CN 2010101767050A CN 201010176705 A CN201010176705 A CN 201010176705A CN 101886597 A CN101886597 A CN 101886597A
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- China
- Prior art keywords
- injection apparatus
- sparger
- petrolift
- fuel
- armature
- Prior art date
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Links
- 238000002347 injection Methods 0.000 title claims abstract description 46
- 239000007924 injection Substances 0.000 title claims abstract description 46
- 239000000446 fuel Substances 0.000 claims abstract description 43
- 230000000712 assembly Effects 0.000 claims abstract description 34
- 238000000429 assembly Methods 0.000 claims abstract description 34
- 230000008676 import Effects 0.000 claims abstract description 8
- 239000000470 constituent Substances 0.000 claims abstract description 6
- 238000007789 sealing Methods 0.000 claims description 11
- 238000002485 combustion reaction Methods 0.000 claims description 10
- 230000033228 biological regulation Effects 0.000 claims description 5
- 230000033001 locomotion Effects 0.000 description 4
- 238000005507 spraying Methods 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000010304 firing Methods 0.000 description 2
- 239000002828 fuel tank Substances 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 238000012856 packing Methods 0.000 description 2
- 230000000630 rising effect Effects 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 1
- 230000003321 amplification Effects 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 238000004581 coalescence Methods 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000000977 initiatory effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 150000002926 oxygen Chemical class 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 230000007306 turnover Effects 0.000 description 1
Images
Classifications
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- 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
- F02M69/00—Low-pressure fuel-injection apparatus ; Apparatus with both continuous and intermittent injection; Apparatus injecting different types of fuel
- F02M69/04—Injectors peculiar thereto
- F02M69/042—Positioning of injectors with respect to engine, e.g. in the air intake conduit
- F02M69/044—Positioning of injectors with respect to engine, e.g. in the air intake conduit for injecting into the intake conduit downstream of an air throttle valve
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- 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
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- 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
- F02M61/188—Spherical or partly spherical shaped valve member ends
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- 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
- F02M61/1886—Details of valve seats not covered by groups F02M61/1866 - F02M61/188
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 present invention relates to injection apparatus, comprise a petrolift (20a) and a sparger (20c), it is characterized in that: this petrolift (20a) and this sparger (20c) are the complete constituent element of an ejection assemblies (2), this petrolift has a piston (23) and an actuator that is used to operate this piston (23), this petrolift (20a) comprises that also has a pump chamber (27) and a return port (51) that is connected with a fuel return line (6b) that is used to import the input hole (50) of fuel, wherein, this sparger (20c) comprises a valve element (40) of inwardly opening.
Description
Technical field
The injection apparatus that the present invention relates to be provided with a petrolift and be provided with the compact structure formula of a sparger of inwardly opening.
Background technique
By prior art known the injection apparatus of various configurations.Especially the compact internal combustion engine that only has one or two cylinder and a little swept volume for cost and structural reason needs technological scheme alone.The application of this compact internal combustion engine for example is two-wheel vehicle or tricycle, or mowing machine etc.Known injection apparatus comprises a petrolift with pressure regulator usually in jar, wherein the petrolift fuel that will have a certain pressure be transported to a pipeline, such as in one " rail ".Be provided with a sparger in the end of pipeline, it is controlled by a control gear, injects fuel in the sucking pipe or directly to be ejected in the firing chamber.But this injection apparatus is very bothersome and especially expensive, so that it makes compact internal combustion engine also become very expensive.
By EP1340906B1 known a kind ofly have an electronically controlled fuel injection system, wherein sparger be disposed in pump piston near.Here be provided with an initial stage that is used for the piston pressurization stroke when fuel is back to jar applies a precompression on fuel precompression valve in addition.This precompression valve makes the part of the fuel that is arranged in the pressure chamber to the return line exhaust in the case.Especially can reduce the formation of steam bubble in the sparger thus.Yet this structure is relatively complicated and this device occupies big structure space.
Summary of the invention
By contrast, the injection apparatus with feature of claim 1 according to the present invention has its advantage, and promptly it has very compact structure.Can especially simply reach on the cost advantageously manufactured according to injection apparatus of the present invention in addition.Especially can use in according to injection apparatus of the present invention thus such as the compact internal combustion engine in two-wheel vehicle or the mowing machine.It will be realized in this wise according to the present invention: this injection apparatus comprises a petrolift and a sparger, and they are the complete constituent element of an ejection assemblies.This ejection assemblies is the assembly of a compactness, small-scale structure, is provided with this petrolift and this sparger therein.The pressure regulator that is used for regulating jet pressure is combined in this sparger.Petrolift comprises the actuator and the pump chamber that are used for operated piston, and this pump chamber has the input hole and the return port that is connected with fuel return line that are used to import fuel.Here sparger comprises a valve element of inwardly opening.Can provide a simple especially valve assembly thus, because especially can cancel the cost of the valve element that is used for always outwards opening so far.Pressure regulator preferably provides by the reset components of valve element.Therefore can provide the compact injection device with valve element of inwardly opening, wherein in order to spray, this valve element moves against injection direction.This ejection assemblies also can be assembled in advance, thus it only need be connected on the required interface and the Motor Vehicle of directly packing in.The parts of ejection assemblies preferably are set in the common housing of this ejection assemblies in the case.Also have another big advantage except the compactedness of ejection assemblies, other parts that promptly are used for ejection assemblies also can minimize.
Dependent claims is expressed further configuration of the present invention.
Injection apparatus preferably includes a shower plate, and this shower plate is set at the downstream of valve element.Shower plate has been determined the outlet of fuel during the course of injection.Therefore according to the present invention, decided by selection, individually design has the shower plate of different spray orifices based on corresponding internal combustion engine.The shower plate that in this injection apparatus, can comprise the same parts of a large amount of numbers and the personalization that is used for different application of only need packing into thus.Shower plate has a plurality of holes, and these holes for example can have the diameters of different sizes and/or towards different directions.Personalized spraying can be provided thus.Particularly preferably be in the case, a plurality of axially bored lines in the shower plate depart from the axial axis of injection apparatus.
For compact structure as far as possible is provided, preferably be provided with an input slit, it makes pump chamber be connected with sparger.Import the radially outer that the slit is set at sparger in the case.Here import the slit and especially comprise two slit sections, be arranged on the valve body their arcs and have enough width, so that fuel is carried towards the valve element.
Sparger also preferably includes one and is provided with a receiving chamber, a sealing seat, a backstop and a valve body that is located at the reset components in the receiving chamber.Here this valve element also is set in the receiving chamber.Reset components applies a reposition force on the valve element, wherein, and on the pressure side the contacting towards injection direction of valve element with the fuel formation of pump chamber.When pressure in the present pump chamber raise, the pressure on the valve element also raise, and wherein, in case this pressure during greater than the reposition force of reset components, the valve element is opened.Should be pointed out that receiving chamber preferably is connected with jar or a return line, so that have external pressure basically in the receiving chamber.
Sparger also preferably includes a regulation cock, is used to regulate the reposition force of reset components.Can change relative position between regulation cock and the valve body at this, so that change reposition force.
Particularly preferably on the backstop of opening stroke of limiting valve element, be provided with second sealing seat that is used for the valve element.The valve element is on second sealing seat of sparger open mode lower seal in backstop thus, and consequently avoided: fuel can flow in the receiving chamber under the sparger open mode.Therefore under the sparger open mode, can avoid leaking.
Ejection assemblies also preferably includes an air regulator as complete constituent element.Can realize more compact structure thus, its mode is that air regulator also is combined in the ejection assemblies.
According to another preferred configuration of the present invention, ejection assemblies also just in time comprises an actuator, and it had both been operated petrolift and has also operated air regulator.Here this actuator comprises a coil and one first armature and one second armature.Especially can cancel being used for air regulator or being used for the actuator of petrolift of separating thus, so that part count reduces widely.Self-evident, also obtain the decline of cost thus.Therefore this common actuator at first bears the function of pump driving and secondly bears the adjusting that is used for air regulator and drives function.Operation when this common actuator can realize petrolift and air regulator, wherein, actuator comprises a coil, one first armature and one second armature.First armature disposes to petrolift in the case, and second armature disposes to air regulator, and two armature can be operated by common coil.For compact structure as far as possible is provided, the part that preferred first armature is air regulator and second armature are the parts of petrolift.Especially first armature is a valve element of air regulator, and second armature is a piston of petrolift.
In addition, the invention still further relates to a kind of internal-combustion engine, it just comprise what a cylinder or just in time two cylinders and one according to injection apparatus of the present invention.This internal-combustion engine particularly preferably comprises a fuel tank, and this fuel tank is set at the top of ejection assemblies.Especially petrolift can be designed to be very little thus.
Description of drawings
Followingly come the preferred embodiment of the present invention will be described in detail with reference to accompanying drawing.Represent in the accompanying drawing:
Fig. 1: have the summary view of a mini engine of injection apparatus according to an embodiment of the invention,
Fig. 2: according to a summary view of this embodiment's injection apparatus, and
Fig. 3 and 4: by this sparger two turn over the sparger sectional view in 90 ° the plane mutually.
Embodiment
Below describe a mini engine 1 that has according to the injection apparatus of the first embodiment of the present invention in detail referring to figs. 1 through 4.
Fig. 1 summarily represents to be configured to the structure of the mini engine 1 of single-cylinder engine.This mini engine 1 comprises 3, one in a cylinder 4, one control units 5 of the reciprocating piston of portion and a jar 6 within it.Jar 6 is connected with ejection assemblies 2 by a fuel inlet pipe road 6a.A fuel return line 6b returns jar 6 by ejection assemblies 2.As representing ground by Fig. 1 summary, jars 6 be arranged on ejection assemblies 2 above.Fuel flows to ejection assemblies 2 based on gravity by fuel inlet pipe road 6a thus.A petrolift is very summarily represented and comprised to this ejection assemblies 2, a sparger and an air regulator with pressure regulator of combination, so that this ejection assemblies 2 is constituted very compactly.
Miniature motor 1 also comprises a throttle valve 7, and this throttle valve is set in the sucking pipe 8.On cylinder 3, also be provided with 9, one suction valves 10 of a spark plug and an outlet valve 11.Bypass conduit that is used for air of label 12 expression, it make air by in the sucking pipe 8 on air-flow direction a regional branch of throttle valve 7 fronts come out and directly import in the air regulator that is combined in the ejection assemblies 2.An outlet 12z of bypass conduit 12 feeds in the sucking pipe 8 in the back of throttle valve 7.
Mini engine 1 also comprises a gas exhaust piping 13, and it discharges by outlet valve 11 or closes.This external gas exhaust piping 13 is provided with an oxygen sensor 14, this oxygen sensor is connected with control unit 5, control unit 5 also connects with the sensor unit 17 that 15, one oil temperature sensors 16 of a cooling water sensor and are used for detecting pressure in throttle position, temperature and the sucking pipe 8 of sucking pipe 8.Control unit 5 is by the SC sigmal control ejection assemblies 2 that obtains in the case.Be provided with an amplifier 18 in addition, be used for when actuator's startup beginning, realizing starting fast to reach piston is quickened apace.Here amplifier 18 especially is enlarged into the set signal of actuator of ejection assemblies.Therefore injection apparatus according to the present invention is configured to have a petrolift, a pressure regulator, and the ejection assemblies 2 of a sparger and an air regulator, and can be designed to that compactness and structure are little especially.Can on cost, make highly beneficially and especially can pre-install in advance according to injection apparatus of the present invention in addition and be made into complete ejection assemblies, so that it only need be installed on the mini engine 1 as the assembly of compact structure.Therefore be petrolift by four unitary part, pressure regulator, the combination of sparger and air regulator has guaranteed favourable manufacturability on simple and the cost.Petrolift and air regulator are in the case by common actuator's operation.Injection apparatus 2 according to the present invention thus for example can use in the mini engine of two-wheel vehicle or mowing machine.
Fig. 2 represents the detailed drawing of ejection assemblies 2.In this ejection assemblies 2, made up petrolift 20a, pressure regulator 20b, sparger 20c and air regulator 20d.Be provided with the housing 25 of a multi-part type for this reason.Pressure regulator 20b is the constituent element of sparger 20c in the case.Here a common actuator operates petrolift 20a and air regulator 20d simultaneously.This common actuator comprises 21, one first armature 22 of a coil and one second armature 23a in the case.As appreciable by Fig. 2, first armature 22 is parts of air regulator 20d, and wherein armature 22 is configured to valve element 22a on the one end, and this valve element can discharge or close this bypass conduit 12 at the valve seat 12a place of a bypass conduit 12.Air regulator 20d has also been disposed one first Returnning spring 28.The second armature 23a is the part of petrolift 20a in this embodiment.Here the piston 23 of the second armature 23a and petrolift 20a is permanently connected.The second armature 23a is columniform parts and has the shape of sleeve pipe, and it also has except guide function supports the function that makes second Returnning spring 24 that the second armature 23a resets.When passing through electric current in the coil 21, this coil had both been operated first armature 22 and had also been operated the second armature 23a in the case.When the electric current cancellation of coil 21, first Returnning spring 28 or second Returnning spring 24 turn back in the home position shown in Fig. 2 two armature again.Position shown in Fig. 2 is a position on the terminal point of the aspiration stroke of petrolift 20a in the case, and piston is positioned on the top dead center in this position.At this moment this actuator is not activated.
As seen from Figure 2, return port 51 is set on the axial X-X of ejection assemblies than input hole 50 more close pistons 23.Because second safety check 31 is opened to recirculation zone 33 by pump chamber 27, the fuel that therefore is arranged in pump chamber 27 when piston 23 moves to until the control edge at return port 51 places 51a is discharged to fuel return line 6b (the stroke H1 of piston 23) by return port 51.The bubble that may exist is discharged among the fuel return line 6b by pump chamber 27.Only when crossing control edge 51a, can realize just in piston 23 that in the case the pressure in the pump chamber 27 rises, and wherein represents the range of piston 3 with H2.
By Fig. 3 and 4 appreciable, sparger 20c comprises a valve element 40 as especially, in this embodiment its structure balling-up.Sparger 20c comprises that also one is used to make the spring members 41 that valve element 40 resets and the receiving chamber 49 of a valve body 42 and an inside, is configured with sealing seat 43 on this valve body.Valve element 40 is positioned on the sealing seat 43 hermetically.In receiving chamber 49, be provided with a backstop 44, on this backstop, form another valve seat 44a.Backstop 44 is configured to annular and can for example be permanently connected by a press fit connection and valve body 42 in this embodiment.Sparger 20c comprises a regulation cock 45 in addition, on the end opposite with valve element 40 that it is set at valve body 42.Regulation cock 45 for example can be made to screw rod and can change the reposition force of spring members 41 by screwing in valve body 42 more deeply.Here spring members 41 constitutes the pressure regulator of injection apparatus, so that determine the size of jet pressure.Spring members 41 is configured to volute spring here.
On the outside of valve body 42, be provided with one first input slit 46 and one second input slit 47.Here first and second input slit 46,47 forms with pump chamber 27 and is connected.As appreciable by Fig. 3, structure has attachment hole 42a in valve body 42, and 42b is used to make fuel to be imported to the 40a on the pressure side of valve element 40 by input gap 46,47.As also appreciable by Fig. 4, the receiving chamber 49 of valve body 42 by a backflow part 48 with jar or the fuel return line 6b (not shown) that is connected.
Sparger 20c also comprises a shower plate 60, and it is set at the back of sealing seat 43 on flow direction.In shower plate 60, be provided with a plurality of holes 61, wherein in Fig. 3 and 4, only express to demonstration two holes.Here axis X-the X of these Kong Keyu ejection assemblies offers or axially bored line off-axis X-X abreast.These holes 61 can at random be distributed on the shower plate 60 and have different diameters in the case.Shower plate 60 is preferably made by Special Steel Plate, but so that advantageously provides shower plate 60 on the cost.Because these holes 61 can at random be opened on the shower plate 60, thus can provide different injection vaporific, for example taper or two-beam spraying.As by Fig. 3 and 4 appreciable, shower plate 60 for example is fixed in the locking nut 62 by laser bonding and is screwed around then on the threaded portion of the 3rd housing parts 25c.
Here the function according to ejection assemblies 2 of the present invention is as follows: by the position shown in Fig. 2 set out-in this position, carried out the suction of fuel by fuel inlet pipe road 6a, carry out the energising of coil 21.Send the voltage of coil 21 to by amplifier 18 amplifications by control unit in the case.Thus can be with big magnetic force in piston 23, thus this piston on the direction of arrow A towards the bottom motion of pump chamber 27.Energising by coil 21 also makes first armature 22 of air regulator 20d side by side be attracted on the direction of arrow B.Air regulator 20d is opened, so that air can flow by bypass conduit 12.Here should point out constantly different by to the selection selectively actuatable armature 22 of the different spring constant of first Returnning spring 28 and second Returnning spring 24 or piston 23.
Therefore the energising by coil 21 is quickened piston 23, wherein, based on second safety check of still opening 31, can't realize the rising of pressure in pump chamber 27.Piston 23 motion until cross return port 51 during fuel and bubble-these bubble coalescence that in pump chamber 27, may exist on the end face of piston 27-discharge by return port 51.Piston 23 can almost not have the acceleration of back pressure ground in the case.In case piston base crosses the control edge 51a on the return port 51, then not having medium again can be discharged among the fuel return line 6b by pump chamber 27.At this moment the rising of initiation pressure in pump chamber 27, wherein pressure is by first and second input slit 46,47 and hole 42a, and 42b imports the 40a on the pressure side of valve element 40.The valve element still is sealed on the sealing seat 43 in the case, till the reposition force of fuel pressure greater than spring members 41 that is applied on the valve element 40.Here Fig. 3 represents also closing state of sparger 20c.In case the pressure on the valve element 40 is greater than the reposition force of spring members 41, the valve element is in the lateral movement in the sparger of the direction of arrow C, and by lifting (Fig. 4) on the sealing seat 43.At this, the valve seat 44a on valve element 40 after the running length of a weak point and backstop 44 form contact and make valve body 42 receiving chamber 49 relative shower plate fronts be in regional seal under the high pressure now, in this receiving chamber, especially be provided with spring members 41.Can prevent thus: the fuel that is under the high pressure flows to backflow part 48 by hollow valve body 42.In open position shown in Figure 4, at this moment the fuel that is under the high pressure can be directed and injected by the hole in the shower plate 60 61.
When injection should finish, the energising of coil 21 finished, so that second reset components 24 makes piston 23 reset to the initial position shown in Fig. 2 again.During this return movement of piston 23, second safety check 31 cuts out and first safety check 29 is opened.Therefore fuel can be drawn in the pump chamber 27 by fuel inlet pipe road 6a.If form bubble thus or bubble is inhaled into, then these bubbles are collected at the piston base of piston 23 again, so that they can be discharged from by second safety check of opening at that time 31 along with the next stroke of piston 23 again.Because the pressure in the pump chamber 27 descends again thus, spring members 41 makes valve element 40 reset to closed position on the sealing seat shown in Fig. 3 again.
Valve body 42 is configured to rectangular parallelepiped shape in this embodiment, thus import slit 46,47 can be in the slit of the side surface configurations Cheng Zhi of the valve body 42 of rectangular parallelepiped shape.But also can be, this valve body 42 be configured to cylindrical basically, and consequently importing the slit is configured to part circumferential weld crack.Can consider that in addition pump chamber 27 is connected with the 40a on the pressure side of valve element 40 by the passage in housing parts 25c and/or the valve body 42.
Therefore can provide a kind of ejection assemblies 2 that is provided with the sparger 20c that inwardly opens according to the present invention, especially can be implemented in the firing chamber without a doubt direct injection by this ejection assemblies thus.Here the use of shower plate 60 also allows the high-freedom degree aspect the beam shaping of spraying, and consequently ejection assemblies according to the present invention can be applicable in the various internal-combustion engines, wherein only needs to change shower plate.Therefore but can reach high same parts number and advantageously make on the cost thus.
Should be pointed out that this injection apparatus advantageously constitutes on compactness and the cost very much.Be always the electromagnetic actuator that flows by coil electricity as actuator in this embodiment.But should point out, also can use other possible actuator, for example piezoelectricity type actuator in principle.Should point out that in addition the closure member 22a of described air regulator 20d also can be made to tapered, the end regions of taper especially of actuator 22, or for example be made to sphere or part is spherical with other any way.
Claims (12)
1. injection apparatus, comprise a petrolift (20a) and a sparger (20c), it is characterized in that: this petrolift (20a) and this sparger (20c) are the complete constituent element of an ejection assemblies (2), this petrolift has a piston (23) and an actuator that is used to operate this piston (23), this petrolift (20a) comprises that also has a pump chamber (27) and a return port (51) that is connected with a fuel return line (6b) that is used to import the input hole (50) of fuel, wherein, this sparger (20c) comprises a valve element (40) of inwardly opening.
2. according to the injection apparatus of claim 1, it is characterized in that: described sparger (20c) comprises a shower plate (60) with a plurality of holes (61), realizes the injection of fuel by this shower plate.
3. according to the injection apparatus of one of above claim, it is characterized in that: be provided with an input slit (46,47), it makes described pump chamber (27) be connected with on the pressure side (40a) of the valve element (40) of described sparger (20c).
4. according to the injection apparatus of one of above claim, it is characterized in that: described sparger (20c) comprises that is provided with a receiving chamber (49), a sealing seat (43), one is used for the backstop (44) of described valve element (40) and the valve body (42) of a reset components (41).
5. according to the injection apparatus of claim 4, it is characterized in that: described sparger (20c) also comprises a regulation cock (45), is used to regulate the reposition force of described reset components (41).
6. according to the injection apparatus of claim 4 or 5, it is characterized in that: described receiving chamber (42a) is connected with one jar (6).
7. according to the injection apparatus of one of claim 4 to 6, it is characterized in that: described backstop (44) has second sealing seat (44a) that is used for described valve element (40).
8. according to the injection apparatus of one of claim 2 to 7, it is characterized in that: whole or a plurality of axially bored lines in the described hole (61) in the described shower plate (60) depart from the axial axis (X-X) of described injection apparatus.
9. according to the injection apparatus of one of above claim, it is characterized in that: also comprise an air regulator (20d), this air regulator is the complete constituent element of described ejection assemblies (2).
10. according to the injection apparatus of claim 9, it is characterized in that: described injection apparatus just in time comprises an actuator, it had both been operated described petrolift (20a) and had also operated described air regulator (20d), wherein, described actuator comprises a coil (21), one first armature (22) and one second armature (23a).
11. the injection apparatus according to claim 10 is characterized in that: described first armature (22) is the part of described air regulator (20d), and described second armature (23a) is the part of described petrolift (20a).
12. internal-combustion engine is characterized in that: this internal-combustion engine comprises what a cylinder just or the injection apparatus of one of two cylinders and the above claim of basis just in time.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102009003081.6 | 2009-05-13 | ||
| DE200910003081 DE102009003081A1 (en) | 2009-05-13 | 2009-05-13 | Compact injector with inward opening injector |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101886597A true CN101886597A (en) | 2010-11-17 |
| CN101886597B CN101886597B (en) | 2014-10-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010176705.0A Expired - Fee Related CN101886597B (en) | 2009-05-13 | 2010-05-13 | Compact type ejection apparatus provided with injector opening inward |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP5761925B2 (en) |
| CN (1) | CN101886597B (en) |
| DE (1) | DE102009003081A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110242463A (en) * | 2018-03-08 | 2019-09-17 | 株式会社电装 | Fuel injection valve and fuel injection system |
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| US5170761A (en) * | 1990-10-01 | 1992-12-15 | Aisan Kogyo Kabushiki Kaisha | Apparatus for controlling idling revolution speed of internal combustion engine |
| EP0992676A2 (en) * | 1995-07-25 | 2000-04-12 | Outboard Marine Corporation | Method of controlling the initial stroke length of a pressure surge fuel pump |
| CN101411044A (en) * | 2006-03-29 | 2009-04-15 | 株式会社三国 | Electromagnetic actuator and fuel injection device |
| DE102007050547A1 (en) * | 2007-10-23 | 2009-04-30 | Robert Bosch Gmbh | Compact injector |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2707804B2 (en) * | 1990-06-18 | 1998-02-04 | トヨタ自動車株式会社 | Driving device for piezoelectric element |
| JP4168564B2 (en) * | 2000-02-01 | 2008-10-22 | 株式会社デンソー | Fuel injection device |
| JP4431268B2 (en) | 2000-11-17 | 2010-03-10 | 株式会社ミクニ | Electronically controlled fuel injection device |
| DE102006041471A1 (en) * | 2006-09-05 | 2008-03-06 | Robert Bosch Gmbh | Fuel injecting valve for fuel injection systems of internal-combustion engines, has spraying device which is carried out as multi-fan-jet nozzle such that fluid disks form laminated disks in which fluid disks run divergently to each other |
| JP2010190069A (en) * | 2009-02-17 | 2010-09-02 | Mikuni Corp | Fuel injection device |
-
2009
- 2009-05-13 DE DE200910003081 patent/DE102009003081A1/en not_active Withdrawn
-
2010
- 2010-05-13 CN CN201010176705.0A patent/CN101886597B/en not_active Expired - Fee Related
- 2010-05-13 JP JP2010110850A patent/JP5761925B2/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5170761A (en) * | 1990-10-01 | 1992-12-15 | Aisan Kogyo Kabushiki Kaisha | Apparatus for controlling idling revolution speed of internal combustion engine |
| EP0992676A2 (en) * | 1995-07-25 | 2000-04-12 | Outboard Marine Corporation | Method of controlling the initial stroke length of a pressure surge fuel pump |
| CN101411044A (en) * | 2006-03-29 | 2009-04-15 | 株式会社三国 | Electromagnetic actuator and fuel injection device |
| DE102007050547A1 (en) * | 2007-10-23 | 2009-04-30 | Robert Bosch Gmbh | Compact injector |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110242463A (en) * | 2018-03-08 | 2019-09-17 | 株式会社电装 | Fuel injection valve and fuel injection system |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2010265898A (en) | 2010-11-25 |
| CN101886597B (en) | 2014-10-29 |
| DE102009003081A1 (en) | 2010-11-18 |
| JP5761925B2 (en) | 2015-08-12 |
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| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
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| C14 | Grant of patent or utility model | ||
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Granted publication date: 20141029 |