CN102165176B - Injector for injecting high-pressure fuel into the combustion chamber of an internal combustion engine - Google Patents
Injector for injecting high-pressure fuel into the combustion chamber of an internal combustion engine Download PDFInfo
- Publication number
- CN102165176B CN102165176B CN200980137491.1A CN200980137491A CN102165176B CN 102165176 B CN102165176 B CN 102165176B CN 200980137491 A CN200980137491 A CN 200980137491A CN 102165176 B CN102165176 B CN 102165176B
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- Prior art keywords
- control room
- section
- flow controller
- valve
- tap hole
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- 239000000446 fuel Substances 0.000 title claims abstract description 52
- 238000002485 combustion reaction Methods 0.000 title claims abstract description 11
- 230000007704 transition Effects 0.000 claims description 29
- 241001672694 Citrus reticulata Species 0.000 claims description 4
- 238000005457 optimization Methods 0.000 claims description 3
- 238000010304 firing Methods 0.000 description 7
- 235000012489 doughnuts Nutrition 0.000 description 5
- 230000001771 impaired effect Effects 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- 230000001447 compensatory effect Effects 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- -1 and thus Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000005194 fractionation Methods 0.000 description 1
- 230000001970 hydrokinetic effect Effects 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000000087 stabilizing effect 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
- F02M47/00—Fuel-injection apparatus operated cyclically with fuel-injection valves actuated by fluid pressure
- F02M47/02—Fuel-injection apparatus operated cyclically with fuel-injection valves actuated by fluid pressure of accumulator-injector type, i.e. having fuel pressure of accumulator tending to open, and fuel pressure in other chamber tending to close, injection valves and having means for periodically releasing that closing pressure
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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
- F02M55/00—Fuel-injection apparatus characterised by their fuel conduits or their venting means; Arrangements of conduits between fuel tank and pump F02M37/00
- F02M55/008—Arrangement of fuel passages inside of injectors
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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
- F02M2200/00—Details of fuel-injection apparatus, not otherwise provided for
- F02M2200/28—Details of throttles in fuel-injection apparatus
Abstract
The invention relates to an injector for internal combustion engines, comprising a control chamber (12) of a valve control piston (8), said chamber being associated with an inlet bore (20) comprising an inlet throttle (26) for supplying high-pressure fuel and an outlet bore (14) comprising an outlet throttle (42), said outlet bore capable of being closed by a control valve. The high-pressure fuel flowing through the inlet bore (20) is introduced eccentrically into the control chamber (12) and produces within the control chamber (12) a swirling flow, the rotational axis of which extends coaxially to the axis (36) of the outlet bore (14).
Description
Background technique
As known for the fuel that is loaded high pressure being ejected in the sparger of firing chamber of internal-combustion engine by storage ejecting system field, the control of course of injection is carried out to the position of the control valve in the control room of valve control piston according to configuration.Control room is connected with pressure duct on this is flowing by ostium, and the fuel that is loaded high pressure flows to sparger by this pressure duct.For unloading pressure, the control room of valve control piston is connected with pressure-compensating chamber by tap hole, and wherein, tap hole is closed by the control valve of compensatory pressure.When control valve is opened, the fuel that is loaded high pressure flow to the pressure-compensating chamber of sparger from control room by tap hole, and thus, valve control piston is released.By relief valve control piston, nozzle needle is opened, and fuel is ejected in the firing chamber of internal-combustion engine by this nozzle needle.The dynamic opening that the variation of the control volume to control room valve control piston nozzle needle is relevant and closing characteristics can be determined by the design that is arranged on the inflow flow controller in ostium and is arranged on the outflow flow controller in tap hole at this.
When control valve is opened, the fuel that is loaded high pressure is mobile towards the direction of the pressure-compensating chamber of sparger through tap hole with high flowing velocity from control room, wherein, because cross section in the region at tap hole and outflow flow controller reduces to produce the localized variation of fuel pressure.Because fuel is loaded 100MPa or pressure more than 1000bar in storage ejecting system, so, based on the dynamic fluid motion of height, can produce local Pressure Drop, this Pressure Drop causes the local steam bubble that forms.Dwindling in the over pressure phase being connected with cross section, steam bubble implodes, and this is also referred to as cavitation.While imploding in the region at steam bubble at control valve, in the high local energy density of this generation, along with the time, forming on the surface of wall on border and causing corroding, causing thus less desirable material denudation and on the valve seat of control valve, cause wearing and tearing.Thus, owing to producing cavitation corrasion, the surface on valve seat and in the mating area of valve body is impaired, and this can cause control valve to leak, and can cause thus ejector function to lose efficacy.
Summary of the invention
Therefore, task of the present invention is, provide a kind of for the fuel that is loaded high pressure being ejected into the sparger of the firing chamber of internal-combustion engine, wherein, the damage being caused by cavitation corrasion of valve seat of control valve of compensatory pressure of the tap hole closure in control room is avoided.
According to the present invention, for the fuel that is loaded high pressure being ejected into the sparger of the firing chamber of internal-combustion engine, comprise an at least valve control piston of ，Gei Gai control room, approximate rotational symmetric control room configuration.Control room at this by the high pressure side hydraulic connecting of ostium and ejecting system.Ostium comprises inflow flow controller, and the fuel that is loaded high pressure limits by this inflow flow controller to the flow in control room.In addition, control room is connected with the low voltage side of sparger by tap hole, and wherein, tap hole can be closed by control valve.For the fuel that is loaded high pressure being ejected in the firing chamber of internal-combustion engine, control valve can be opened, wherein, the fuel that is loaded high pressure from control room, flow through tap hole and be arranged on outflow flow controller tap hole and consequently valve control piston in order to open jet nozzles, be released.
According to the present invention, the fuel that is loaded high pressure is incorporated in control room prejudicially by ostium, and thus, the fuel of inflow is the inner vortex flow that produces in control room, and this vortex flow has rotational component and translational component.Control room internal rotating be flowing in this have with respect to the axis coaxle of tap hole the spin axis that extends.
Fuel flow by the fuel that is loaded high pressure being transported to prejudicially to the rotation producing in control room proceeds in tap hole with the form of vortex always.Due to vortex and flowing of forming thus produces vorticity line, this vorticity line is along the spin axis extension of rotational flow and in the eddy current of described vorticity line, form slough in the heart.Slough is at this no longer for transfer the fuel, and thus, fuel only can flow along the wall of control room and tap hole.The steam bubble producing due to the variation of the fuel pressure in the high flowing velocity of fuel and the region of tap hole when control valve is opened is squeezed in central authorities' eddy current of rotational flow in the heart, and there, steam bubble also implodes.Avoid in this way steam bubble limit tap hole border wall near or in region at the valve seat of control valve, implode, avoid thus material denudation, avoid thus because cavitation is damaged.By utilize the present invention based on principle obtain providing the possibility of the sparger that is applicable to multi-injection and maximum load with the long-life.
According to a preferred implementing form of the present invention, for the fuel that is loaded high pressure is flow into control room prejudicially or tangentially from ostium, the side that the inflow flow controller of ostium extends prejudicially at the cross section with respect to control room extends upward.Thus, flow into the axis of flow controller, the axis of preferred whole ostium does not intersect with the cross-section center point in control room.In control room, being loaded the rotational flow of fuel of high pressure or the generation of vortex can be arranged prejudicially and be flowed into flow controller and realize by the cross section about control room by simple structural measure thus.
From by prior art is known, in central authorities, arrange that to flow into flow controller different---wherein fuel is introduced in control room in the direction radially of the cross section with respect to control room, in solution according to the present invention, obtain advantage: because fuel tangentially flows into by eccentric inflow flow controller, in inside, control room, can produce according to eddy current of the present invention, this eddy current proceeds to tap hole always.
Be additional to arrange prejudicially and flow into flow controller or as its alternative, another form of implementation according to the present invention can propose, in control room, be provided with the section that at least one has baffling-face, described section makes to flow into the fuel deflection that is loaded high pressure in control room by ostium.Because the fuel flowing into is by baffling-face deflection according to the present invention, the fuel flow of inside, control room rotates according to the present invention, obtains thus previously described advantage.Described at least one baffling-face is at this configurable section that give to limit the wall on border, control room for example.
Self-evident, except arranging prejudicially in inside, control room, flow into flow controller or baffling-face be set to make to flow into the fuel deflection in control room, also can consider other structural measure, by these structural measures, can produce the fuel flow of rotation in inside, control room.
In order on purpose to control imploding of steam bubble, according to the present invention, can propose, tap hole comprises Diffuser, this Diffuser reduces the flowing velocity of fuel and fuel pressure is improved.Diffuser is arranged on the side towards control valve that flows out flow controller in tap hole at this, be arranged on thus outflow flow controller on the flow direction of fuel after.As resulting in experimental study when control valve is opened, rotational flow proceeds to tap hole as eddy current always, and wherein, eddy current is completed into and rotates with high speed in the region of flowing out flow controller.When being transitioned into Diffuser, in the Bas Discharged district of this eddy current, be taper expansion, thus, the steam bubble being present in eddy current in the heart on purpose implodes.Thus, because Diffuser arranged according to the present invention after flowing out flow controller obtains advantage: in the region at tap hole, cavitation occurs, do not cause erosion in this cavitation in this region.
In order stably to form eddy current in the region of Diffuser, according to the present invention, be proved particularly advantageously, Diffuser has the subtended angle of the optimization in the scope that is less than 15 ° or is configured to column.
According to another form of implementation of the present invention, can propose, tap hole has the bore section of control room side, and this bore section arranges coaxially and has than flowing out the large inner diameter of flow controller with respect to flowing out flow controller.From bore section to the cross section transition of flowing out flow controller this can be stepped, taper or carry out with the form of rounding.The bore section stabilizing vortex center preferably with the control room side of columnar shape, the mobile generation of rotating in this You control room, eddy current center.Eddy current center proceeds to outflow flow controller in this as vorticity line always, and this flows out flow controller and is connected with bore section.
According to form of implementation of the present invention, can propose according to one of bore section, from bore section, to the transition of flowing out flow controller, there is cone shape, in bore section and the transition region flowing out between flow controller, avoid mobile whirlpool thus.
For avoid the flow-disturbing of the rotational flow of fuel when control room is transitioned into tap hole, according to the present invention, can propose, tap hole has the rounding of becoming a mandarin portion on the end in control room at it.For Bas Discharged district is on purpose expanded in the downstream of flowing out flow controller, as proposing this alternative, tap hole has the seamed edge of becoming a mandarin at it on the end in control room, and this seamed edge that becomes a mandarin forms the transition between control room and tap hole.
For the seat that the improves control valve stress level in region, according to the present invention, also can propose, flowing out the transition region that is provided with other taper between flow controller and the valve seat of control valve.The transition region of described other taper be arranged on tap hole on the end of control valve and the transition that forms the valve seat from tap hole to control valve at this, the transition region of described other taper is configured to chamfered edge at this.
According to according to another form of implementation of sparger of the present invention, control valve has spherical valve body, and this valve body is used as the cut-off body for tap hole.Spherical valve body can reverse in the corresponding guiding device that is received in control valve at this, can rotate by the vortex pulse of fuel flow thus.Rotation by valve ball obtains advantage: the wearing and tearing reduction of valve ball and the life of control valve.
According to another form of implementation of the present invention, also can propose in an identical manner, valve control piston also can reverse and be received in sparger around its longitudinal axis.Valve control piston can rotate by vortex flow at this, reduces in an advantageous manner thus the wearing and tearing of valve control piston and the life-span of improving valve control piston.
Accompanying drawing explanation
By means of preferred implementing form, present invention is described with reference to the accompanying drawings.Accompanying drawing represents:
Fig. 1, according to the schematic longitudinal cross-section of sparger of the present invention, inserts the valve section with valve control piston in the housing of this sparger;
The schematic cross-sectional view in the control room of Fig. 2 a valve section, this valve section has according to the present invention the ostium that has reversed prejudicially an angle, and this ostium comprises inflow flow controller;
The schematic cross-sectional view in the control room of Fig. 2 b valve section, this valve section has the reamer arranging prejudicially and the inflow flow controller arranging to eccentric dislocation according to the present invention;
Fig. 3 is according to the explanatory view of the fuel flow in the control room of the valve section of Fig. 2 a; And
The explanatory view of Fig. 4 longitudinal cross-section of valve section in the region of the tap hole of valve section, this valve section has the valve ball that makes tap hole closure.
Embodiment
Fig. 1 shows the partial view of the axial cross section of the sparger 1 with valve section 4, and this valve section is inserted in the housing 2 of sparger 1.Valve section 4 is arranged in the axial valley 6 of multiple fractionation of housing 2 at this, and valve control piston 8 centrally and can axially and rotatablely move and also be received in this axial valley.On the underpart of case of sprayer 2 shown in Figure 1, connecting unshowned nozzle body in Fig. 1, in this nozzle body, be provided with the valve needle arranging coaxially with respect to valve control piston 8, this valve needle opens jet nozzles by the stage, for the fuel that is loaded high pressure being ejected into the firing chamber of internal-combustion engine.
In valve section 4 in being arranged on case of sprayer 2, be provided with axial bore 10, this axial bore extends through this valve section and is divided at this section that inner diameter varies in size on the axial direction of valve section 4.At this, valve control piston 8 can move in the compresses lower section of the axial bore 10 that is received in valve section 4 in the axial direction with its upper end portion, is obtaining the control room 12 that volume is relatively little thus above valve control piston 8 in valve section 4.From control room 12, be arranged on the valve seat 16 that axial bore 10 in valve section 4 extends to control valve not shown further in Fig. 1 always.Axial bore 10 in the section between control room 12 and valve seat 16 this be configured to tap hole 14 and can be by Fig. 1 in control valve not shown further with respect to the hollow chamber being arranged on above valve section 4 of the axial valley 6 of case of sprayer 2, seal, this hollow chamber is as pressure-compensating chamber.On the height in control room 12, in the wall 18 of valve section 4, be provided with ostium 20, this ostium makes control room 12 be connected with high pressure connecting end 24 by doughnut 22.Thus, by high pressure connecting end 24, the fuel of being loaded high pressure to control room 12 inputs by doughnut 22 and ostium 20 wherein, for restricted volume flow, is provided with and flows into flow controller 26 in ostium 20.
Two viewgraph of cross-section in the control room 12 of valve section 4 have been shown in Fig. 2 a and Fig. 2 b, and this valve section comprises having the ostium 20 that flows into flow controller 26.The control room 12 that ostium 20 makes to be arranged on valve section 4 inside at this and sparger 1 at doughnut 22 hydraulic connectings shown in Fig. 1.As from knowing Fig. 2 a and Fig. 2 b, ostium 20 also comprises a reamer except being transitioned into the inflow flow controller 26 in control room 12, and this reamer has cylindrical sections 28 and taper section 30.With respect to inflow flow controller known by prior art, that arrange with one heart, the inflow flow controller 26 shown in Fig. 2 a and Fig. 2 b arranges prejudicially.
According to the inflow flow controller 20 arranging prejudicially in the form of implementation shown in Fig. 2 a, ostium 20 and flow into the axis of flow controller 26 with respect to angle x of radial oriented torsion of ostium.The cylindrical sections 28 of ostium 20 arranges with respect to flowing into flow controller 26 coaxially at this.The taper section 30 that also can arrange coaxially with respect to inflow flow controller 26 by ostium 20 is created in mobility status favourable on hydrokinetics at the fuel that is loaded high pressure when doughnut 22 flow into ostium 20.Another form of implementation of the ostium 20 arranging prejudicially has been shown in Fig. 2 b.Taper section 30 and the cylindrical sections 28 of ostium 20 arrange with one heart at this, and flow into flow controller 26 with respect to the radial oriented magnitude of misalignment e that staggers prejudicially.
By being arranged on prejudicially in the wall 18 of valve section 4 flowing into flow controller 26, the fuel that is loaded high pressure tangentially flow into control room 12 from the doughnut 22 shown in Fig. 1, forms thus the vortex flow with translational component and rotational component.The vortex flow that arrow 34 by Fig. 3 represents is in this rotation in control room 12 in the direction of arrow 32, wherein, and the eddy current center and the vorticity line that schematically with reference number 38, represent be formed on Fig. 3 in the region of the axis 36 of valve section 4 in.Vorticity line is the center line extending on the axial direction of the axial bore 10 in valve section 4 at eddy current center 38 at this, and propagate along flow direction at this eddy current center.
Flowing that the side at arrow 32 by fuel rotates up produces centrifugal force, the high quality of this centrifugal force based on fuel and from the outside promotion fuel of the axis 36 of spin axis or valve section 4.Compare with quality of fuel light steam bubble, hole or cavitation bubble leaves thus wall 18 and towards the direction of spin axis, squeezed towards the centre of rotational flow.In eddy current center 38, produce ，Gai slough, so-called slough no longer for the 12 delivered inside fuel in control room.Therefore, fuel only can flow along 12 the inner face towards control room of the wall 18 of valve section 4, and wherein, rotational flow proceeds in the tap hole 14 shown in Fig. 1 on the axial direction of the axial bore 10 of valve section 4 always.
According to tap hole 14 in the form of implementation shown in Fig. 1, this tap hole extends to the valve seat that is configured to taper 16 of control valve in a plurality of cross section sections always.From control room 12, after the bore section 40 of column, be to flow out 42, one Diffusers 44 of flow controller to be connected with this outflow flow controller.The transition region 46 that taper can be set between Diffuser 44 and valve seat 16, this transition region has less cone diameter than the valve seat 16 being connected with this transition region.In addition, different sections 40,42,44 also have the inner diameter varying in size, and wherein, the bore section 40 of column has maximum inner diameter, flow out flow controller 42 and have minimum inner diameter.
According to according to the form of implementation of the tap hole 14 of Fig. 1, the transition of 12 bore section 40 to column from control room, from the bore section 40 of column to flowing out the transition of flow controller 42 and becoming stepped from flowing out flow controller 42 to the intermediate structure of Diffuser 44.
From Fig. 4, can know the form of implementation as an alternative solution of tap hole 14, wherein, an axial longitudinal cross-section of valve section 4 has been shown in the region of tap hole 14.Different from the tap hole 14 shown in Fig. 1, the transition of 12 bore section 40 to column and be not to carry out with stepped-style to the transition of flowing out flow controller 42 from the bore section 40 of column from control room.The taper section 48 of tap hole 14 is set between the bore section 40 of control room 12 and column, and this taper section 12 is observed towards the direction of the bore section 40 of column and is shunk from control room.This taper section 48 on the end in control room 12, can arrange one around chamfered edge 50, this chamfered edge has the cone diameter larger than taper section 48 the transition from control room 12 to tap hole 14.By before the bore section 40 in column, arrange around chamfered edge 50 and taper section 48, in the region of avoiding the cross section between the bore section 40 of control room 12 and column to change, there is flow-disturbing, thus, the eddy current center 38 of rotational flow is stablized.
According to unshowned form of implementation in Fig. 4, as with control room 12 adjacency around chamfered edge 50 alternative or be additional to this and also can propose, tap hole 14 has seamed edge by the exhaust port of rounding on the end in control room 12 at it.
In order further to stablize the eddy current center 38 forming in tap hole 14 inside of vortex flow, the bore section 40 of column has cone shape in the transition region 52 to outflow flow controller 42.
From 12 bore section 40 to column and different to the transition of flowing out flow controller 42 from the bore section 40 of column from control room, the intermediate structure from outflow flow controller 42 to Diffuser 44 becomes stepped.Diffuser 44 can have the subtended angle of the optimization that is preferably less than 15 ° at this, and thus, the velocity level of vortex flow reduces and stress level improves.The steam bubble forming in the eddy current center 38 of vortex flow on purpose implodes because the stress level in the region of Diffuser 44 improves, and can be on the wall that surrounds tap hole 14 by cavitation corrasion and impaired.In addition it is not impaired that, effect according to the present invention makes the valve seat 16 of taper.
The transition region 46 that is connecting taper on flow direction after Diffuser 44, this transition region is transitioned into the valve seat 16 of taper.The transition region 46 of taper has the cone diameter less than the valve seat of taper 16 at this.
The transition region 46 of the taper in Fig. 1 and Fig. 4 is the transition zone that flows, and this mobile transition zone can be used as using damaging important region for the cavitation before valve seat 16.As can be from the view Fig. 4 is known, tap hole 14 be by spherical valve body 54 closures, and this valve body can be reversed and led and operate by also unshowned actuator by unshowned ball guiding device in Fig. 1 and Fig. 4.At this, can make by the vortex pulse of vortex flow 54 rotations of spherical valve body.
Except thering is the above-mentioned form of implementation of the transition between inner diameter different ostium 20 and the section of tap hole 14, according to not shown other form of implementation as an alternative solution, propose, ostium 20 and tap hole 14 have the combination of the transition being differently shaped.Transition between the different section of inner diameter preferably has the shape of cone or tapered shape, stairstepping or rounding at this.
Claims (8)
1. for the sparger of internal-combustion engine, the control room (12) that comprises valve control piston (8), give this of control room configuration have inflow flow controller (26) for delivery of being loaded the ostium (20) of the fuel of high pressure and the tap hole (14) that has outflow flow controller (42), this tap hole can be closed by control valve, wherein, this inflow flow controller (26) extends upward in the side eccentric with respect to this control room (12), its mode is that the fuel that is loaded high pressure that flows through this ostium (20) is incorporated in this control room (12) and in this control room (12) the inner vortex flow that produces prejudicially, the spin axis of this vortex flow extends coaxially with respect to the axis (36) of this tap hole (14), it is characterized in that: this ostium (20) also comprises cylindrical sector (28) and tapered segment (30) except the inflow flow controller (26) being transitioned in this control room (12), this tapered segment (30) of this ostium (20) and this cylindrical sector (28) arrange and not radially being offset with respect to this control room (12) with one heart, and this flows into flow controller (26) journal offset side-play amount e of this tapered segment (30) and this cylindrical sector (28) relatively.
2. according to the sparger of claim 1, it is characterized in that: in this control room (12), be provided with the section that at least one comprises baffling-face, described at least one comprise that the section of baffling-face makes to flow into the fuel deflection in this control room (12).
3. according to the sparger of claim 1, it is characterized in that: this tap hole (14) comprises Diffuser (44), this Diffuser be arranged on this outflow flow controller (42) in the side of this control valve.
4. according to the sparger of claim 3, it is characterized in that: this Diffuser (44) has the subtended angle in the optimization range that is less than 15 °.
5. according to the sparger of claim 3 or 4, it is characterized in that: this tap hole (14) has the bore section (40) of control room side, this bore section has than the large inner diameter of this outflow flow controller (42), wherein, the cross section transition part that flows out flow controller (42) from this bore section (40) to this is stepped, taper or rounding ground form.
6. according to the sparger of claim 3 or 4, it is characterized in that: this tap hole (14) has the rounding of becoming a mandarin portion on the end of this control room (12) at it.
7. according to the sparger of claim 3 or 4, it is characterized in that: this tap hole (14) has taper section (48) on the end of this control room (12) at it, this taper section is widened towards the direction of this control room (12).
8. according to the sparger of claim 3 or 4, it is characterized in that: the transition region (46) that is provided with taper between the valve seat (16) of this outflow flow controller (42) and this control valve.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE200810042293 DE102008042293A1 (en) | 2008-09-23 | 2008-09-23 | Injector for injecting high-pressure fuel into the combustion chamber of an internal combustion engine |
| DE102008042293.2 | 2008-09-23 | ||
| PCT/EP2009/059649 WO2010034544A1 (en) | 2008-09-23 | 2009-07-27 | Injector for injecting high-pressure fuel into the combustion chamber of an internal combustion engine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102165176A CN102165176A (en) | 2011-08-24 |
| CN102165176B true CN102165176B (en) | 2014-02-19 |
Family
ID=41277475
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200980137491.1A Active CN102165176B (en) | 2008-09-23 | 2009-07-27 | Injector for injecting high-pressure fuel into the combustion chamber of an internal combustion engine |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP2347115B1 (en) |
| CN (1) | CN102165176B (en) |
| DE (1) | DE102008042293A1 (en) |
| WO (1) | WO2010034544A1 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3218094B1 (en) * | 2014-11-11 | 2020-01-08 | Robert Bosch GmbH | An injection valve having control chamber |
| CN110822106B (en) * | 2018-08-09 | 2022-10-28 | 罗伯特·博世有限公司 | Transmission device for refrigeration valve and refrigeration valve |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6382185B1 (en) * | 1998-12-22 | 2002-05-07 | Robert Bosch Gmbh | Fuel injection valve |
| CN1400383A (en) * | 2001-08-01 | 2003-03-05 | 株式会社电装 | Fuel oil jetting valve |
| DE10259950A1 (en) * | 2002-12-20 | 2004-07-01 | Robert Bosch Gmbh | Control valve for injectors, in particular common rail injectors of internal combustion engines |
| US6988680B1 (en) * | 1999-08-23 | 2006-01-24 | Robert Bosch Gmbh | Injector of compact design for a common rail injection system for internal combustion engines |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19940290A1 (en) * | 1999-08-25 | 2001-03-01 | Bosch Gmbh Robert | Control valve for a fuel injector |
| DE10123775B4 (en) * | 2001-05-16 | 2005-01-20 | Robert Bosch Gmbh | Fuel injection device for internal combustion engines, in particular common rail injector, and fuel system and internal combustion engine |
-
2008
- 2008-09-23 DE DE200810042293 patent/DE102008042293A1/en not_active Withdrawn
-
2009
- 2009-07-27 EP EP09781113.7A patent/EP2347115B1/en active Active
- 2009-07-27 CN CN200980137491.1A patent/CN102165176B/en active Active
- 2009-07-27 WO PCT/EP2009/059649 patent/WO2010034544A1/en active Application Filing
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6382185B1 (en) * | 1998-12-22 | 2002-05-07 | Robert Bosch Gmbh | Fuel injection valve |
| US6988680B1 (en) * | 1999-08-23 | 2006-01-24 | Robert Bosch Gmbh | Injector of compact design for a common rail injection system for internal combustion engines |
| CN1400383A (en) * | 2001-08-01 | 2003-03-05 | 株式会社电装 | Fuel oil jetting valve |
| DE10259950A1 (en) * | 2002-12-20 | 2004-07-01 | Robert Bosch Gmbh | Control valve for injectors, in particular common rail injectors of internal combustion engines |
Also Published As
| Publication number | Publication date |
|---|---|
| DE102008042293A1 (en) | 2010-03-25 |
| CN102165176A (en) | 2011-08-24 |
| EP2347115A1 (en) | 2011-07-27 |
| EP2347115B1 (en) | 2013-09-11 |
| WO2010034544A1 (en) | 2010-04-01 |
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