CN102282354A - Fuel injector for internal combustion engines - Google Patents
Fuel injector for internal combustion engines Download PDFInfo
- Publication number
- CN102282354A CN102282354A CN2009801546532A CN200980154653A CN102282354A CN 102282354 A CN102282354 A CN 102282354A CN 2009801546532 A CN2009801546532 A CN 2009801546532A CN 200980154653 A CN200980154653 A CN 200980154653A CN 102282354 A CN102282354 A CN 102282354A
- Authority
- CN
- China
- Prior art keywords
- valve needle
- fuel injector
- pressure chamber
- circumferential weld
- nozzle
- 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
- 239000000446 fuel Substances 0.000 title claims abstract description 35
- 238000002485 combustion reaction Methods 0.000 title claims abstract description 6
- 238000007789 sealing Methods 0.000 claims description 3
- 230000003044 adaptive effect Effects 0.000 claims description 2
- 230000015572 biosynthetic process Effects 0.000 description 3
- 238000005755 formation reaction Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000035945 sensitivity Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000004513 sizing Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 238000011144 upstream manufacturing Methods 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
- F02M61/00—Fuel-injectors not provided for in groups F02M39/00 - F02M57/00 or F02M67/00
- F02M61/04—Fuel-injectors not provided for in groups F02M39/00 - F02M57/00 or F02M67/00 having valves, e.g. having a plurality of valves in series
- F02M61/10—Other injectors with elongated valve bodies, i.e. of needle-valve type
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- 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
- F02M47/022—Mechanically actuated valves draining the chamber to release the 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
- F02M61/00—Fuel-injectors not provided for in groups F02M39/00 - F02M57/00 or F02M67/00
- F02M61/04—Fuel-injectors not provided for in groups F02M39/00 - F02M57/00 or F02M67/00 having valves, e.g. having a plurality of valves in series
- F02M61/10—Other injectors with elongated valve bodies, i.e. of needle-valve type
- F02M61/12—Other injectors with elongated valve bodies, i.e. of needle-valve type characterised by the provision of guiding or centring means for valve bodies
-
- 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
- F02M61/161—Means for adjusting injection-valve lift
-
- 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
- F02M61/20—Closing valves mechanically, e.g. arrangements of springs or weights or permanent magnets; Damping of valve lift
- F02M61/205—Means specially adapted for varying the spring tension or assisting the spring force to close the injection-valve, e.g. with damping of valve lift
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Fuel-Injection Apparatus (AREA)
Abstract
The invention provides a fuel injector for internal combustion engines, having a pressure chamber (16) formed in a housing (10), in which a nozzle needle (15) is disposed having an adjustable stroke. The pressure chamber (16) is divided into a stored pressure chamber (26) away from the nozzle needle seat and a nozzle needle pressure chamber (25) near the nozzle needle seat, wherein a hydraulic throttle element (40) designed as an annular gap throttle is disposed between the stored pressure chamber (26) and the nozzle needle pressure chamber (25). At least two annular gap throttle elements (41.1 to 41.n) are disposed one after another in the fuel flow direction at the nozzle needle (15).
Description
Technical field
The present invention relates to a kind of fuel injector internal-combustion engine, that have claim 1 preamble feature that is used for.
Background technique
This fuel injector is known by DE 2,006 036 447 A1.This fuel injector has a so-called leak free valve needle, and this valve needle is surrounded by the pressure chamber of an annular on whole length, and the system pressure of rail is applied in this pressure chamber altogether.At this, this pressure chamber be divided into have one from nozzle needle stand pressure store chamber and far away from two partial pressure chambers of the near valve needle pressure chamber of nozzle needle stand, wherein, the pressure store chamber far away from the nozzle needle stand forms bigger volume.Between two pressure chambers, there is the connection of a hydraulic pressure.All pressure sides of valve needle bear system pressure, also do not have pressure gradient thus, and this pressure gradient is responsible for shut-off nozzle pin apace.This is provided with, and the closed throttle valve by a hydraulic pressure is connected the pressure store chamber with the valve needle pressure chamber, makes to have pressure difference between two pressure chambers when valve needle is opened, and this pressure difference is responsible for shut-off nozzle pin apace.
For the hydraulic pressure of throttling hydraulically between pressure store chamber and valve needle pressure chamber connects, in patent application DE 10 2,007 032 741.4, propose, between two pressure chambers, implement on the valve needle one around endless belt, this endless belt constitutes the circumferential weld around valve needle, and this circumferential weld act as so-called circumferential weld throttle valve.Throttling action causes the required power of closing thus, needs the very little seam of circumferential weld throttle valve wide.In order to determine that on geometrical construction seam is wide, about the common requirement of tolerance needs of nozzle body and valve needle.
Summary of the invention
Task of the present invention is, implements the throttle element of a hydraulic pressure between pressure store chamber and valve needle pressure chamber, and this throttle element has lower requirement to manufacturing tolerances.
Task of the present invention solves with the measure of the characteristic of claim 1.Can realize that by at least two of structures in succession circumferential weld throttle element on the flow direction of the fuel that flows into throttling hydraulically acts on the power of closing on the needle with formation, this is closed power and has lower sensitivity whole using at the seam of crevice throttle valve aspect wide.Can reduce requirement thus to the wide definite bigger size of the seam on some circumferential weld throttle elements thus to accuracy of manufacturing.Additionally, reduced sensitivity because the bigger seam on some circumferential weld throttle elements is wide with respect to the particle that is directed to fuel.
The favourable expanded configuration of the present invention is feasible by the measure of dependent claims.
Description of drawings
Shown in the drawings and the explanation at length in the following description of embodiments of the invention.Accompanying drawing illustrates:
Fig. 1 passes the cross section view according to first embodiment's fuel injector,
Fig. 2 is according to first mode of execution of the throttle element of hydraulic pressure, the local X enlarged view of Fig. 1,
The fragmentary cross-sectional view of second mode of execution of the throttle element of Fig. 3 hydraulic pressure,
The fragmentary cross-sectional view of the 3rd mode of execution of the throttle element of Fig. 4 hydraulic pressure,
Fig. 5 passes the sectional view according to the section of the valve needle side of second embodiment's fuel injector,
Fig. 6 passes the sectional view according to the section of the valve needle side of the 3rd embodiment's fuel injector.
Embodiment
Fig. 1 illustrates the fuel injector with a housing 10, and this housing for example is assembled into by an injector body 11 and a nozzle body 12.Vertically be provided with a valve needle 15 in housing 10 in pressure chamber 16 movably, this valve needle is for example by control valve 30 controls of an electromagnetism.Have jet nozzles 13 in nozzle body 12, by this jet nozzles, fuel is injected in the firing chamber of internal-combustion engine.
Valve needle 15 have one from the near section 17 and of nozzle needle stand from nozzle needle stand piston section 18 far away, wherein, piston section 18 hydraulic seals ground guiding in the pilot hole 19 of valve piece 20.Structure one control room 21 in valve piece 20, the piston section 18 of valve needle 15 is exposed to this control room with pressure side.On the near section 17 of nozzle needle stand, valve needle 15 has a sealing surface, the sealing face press one on nozzle body 12 the nozzle needle stand 14 of structure.The spring 29 of closing of effect is responsible on valve needle 15, and valve needle 15 remains in the nozzle needle stand 14 when tail-off.
In nozzle body 12 structure one pilot hole 22, with respect to the pilot hole in the valve piece 20 19 additionally in this pilot hole 22 valve needle 15 lead from nozzle needle stand near-earth with a guide section 23.This guide section 23 is provided with flat 24, and these flats constitute the connection of a hydraulic pressure between adjacent pressure chamber, essentially no throttling.Between nozzle pin hole 22 and nozzle needle stand 14, valve needle 15 has a little diameter in the zone of the near section 17 of nozzle needle stand, make nozzle body 12 and between the near section 17 of nozzle needle stand structure one ring casing, this ring casing is called as valve needle pressure chamber 25.
On nozzle needle stand piston section 18 far away, valve needle 15 is surrounded by a ring casing equally, and this ring casing has than the bigger volume in valve needle pressure chamber 25 and is called as pressure store chamber 26.Valve needle pressure chamber 25 and pressure store chamber 26 constitute pressure chamber 16 together.
Import a high pressure supplying tube in pressure store chamber 26, this high pressure supplying tube is connected pressure store chamber 26 with the high-pressure storage 28 that is embodied as common rail.The system pressure of rail 28 is applied in the pressure store chamber 26 altogether thus.Having an ostium 32 that flows into throttle valve leads to the control room 21 from pressure store chamber 26.Having the tap hole 33 that flows out throttle valve passes to the valve chamber 34 from control room 21.This valve chamber 34 is connected with low pressure chamber 36 by valve seat 35, and this low pressure chamber is connected with low pressure reflow pipe 39.The valve cage 38 of the armature 51 of control valve 30 acts on the valve seat 36.
In order to open needle 15, control valve 30 is controlled, and armature 51 lifts valve cage 38 from valve seat 35 thus, makes valve chamber 34 hydraulically be connected with low pressure chamber 36.Thus, control room 21 is surpassed the power of closing that applies in control room 21 by the opening force of effect on pressure release and the valve needle in valve needle pressure chamber 25 15.If the electromagnet of control valve 30 is disabled, valve seat 35 is closed again the connection of the hydraulic pressure between low-pressure chamber 36 and valve chamber 34 and control room 21 is filled by ostium 23 by closing so.Thus, rising of the pressure in control room 21 and valve needle 15 are placed to again in the nozzle needle stand 14.
The throttle element 40 of one hydraulic pressure is set between pressure store chamber 26 and valve needle pressure chamber 25.The throttle element 40 of this hydraulic pressure is made of at least two crevice throttle elements 41.1 to 41.n that are provided with in succession on the flow direction of fuel.In the embodiment of Fig. 1 and 2, two crevice throttle elements 41.1 and 41.2 constitute the throttle element 40 of hydraulic pressure.These two crevice throttle elements 41.1,41.2 are configured to an endless belt 44 valve needle 15 respectively on the near section 17 of nozzle needle stand.Each endless belt 44 has narrow columniform circumferential surface 45 and first anchor ring 46 and second anchor ring 47.These anchor rings 46,47 can be by the level lands or are tiltedly extended ground and implement.Between the inwall 49 of the circumferential surface 45 of each endless belt 40 and nozzle body 12 structure one around circumferential weld s.In the embodiment according to Fig. 2, circumferential weld s is measure-alike under the situation of two crevice throttle elements 41.1 and 41.2.But also can so place the crevice throttle element 41.1,41.2 on the needle 15, make circumferential weld s be formed between the inwall on circumferential surface 45 and the injector body 11.
In the embodiments of figure 3, four circumferential weld throttle elements 41.1 to 41.4 of structure on valve needle 15, these circumferential weld throttle elements (as in the embodiment of Fig. 2) are made of an endless belt 44 respectively.Endless belt 44 is with the inwall 49 formation circumferential weld ss of their corresponding circumferential surfacies 45 to nozzle body 12, and this circumferential weld is for all crevice throttle element 41.1 to 41.4 substantially the same ground sizings.Here circumferential weld s also can be formed between the inwall on circumferential surface 45 and the injector body 11.
In embodiment according to Fig. 4, on valve needle 15, construct four circumferential weld throttle elements 41.1 to 41.4 equally, in these circumferential weld throttle elements, endless belt 44 has a diameter d that reduces 2.1 to d2.4 on the flow direction of fuel.Nozzle body 12 implements the stair-stepping inwall 50 of the different-diameter d2.1 to d2.4 of corresponding adaptive different endless belt 44 in an embodiment, make and between the corresponding circumferential surface 45 of stair-stepping inwall 50 and endless belt 44, construct a circumferential weld s1 to s4 respectively, wherein, circumferential weld s1 to s4 size is basic identical.Thus, the ladder labyrinth that is used for circumferential weld throttle element 41.1 to the 41.4 formations one waterfall shape of fuel.At this, this step-like inwall 50 also can be configured on the injector body 11.
Learn sectional view by Fig. 5 and 6 according to the nozzle side of other embodiments' fuel injector, in these other embodiments valve needle 15 have a beguine according to the shorter longitudinal extension of the embodiment of Fig. 1 and control room 21 by one on piston section 18 vertical control room sleeve 51 gauges movably.This control room sleeve 51 is pressed against on the end face of another injector body part 53 by a pressure spring 52, and this injector body part for example constitutes by having the Rectifier plate that leads to the inflow in the control room 21 and flow out throttle valve that does not illustrate.
In the embodiment according to Fig. 5, valve needle guiding element 23 is by nozzle needle stand 14 ground structure.Circumferential weld throttle element 41.1 to 41.n (as the embodiment among Fig. 1) is arranged on the upstream of valve needle guiding element 23 on the flow direction of fuel.
In embodiment, except from the near valve needle guiding element 23 of nozzle needle stand, be provided with other flats 56, the same connection that constitutes the hydraulic pressure of essentially no throttling of these flats away from another valve needle guiding element 55 of nozzle needle stand according to Fig. 6.Circumferential weld throttle element 41.1 to 41.n is in this embodiment between two valve needle guiding elements 23 and 55.
Claims (11)
1. the fuel injector that is used for internal-combustion engine, pressure chamber (16) with structure in a housing (10), in this pressure chamber, a valve needle (15) can be set reciprocatingly, this valve needle is with a sealing surface and a nozzle needle stand (14) synergy, wherein, by the synergy of valve needle (15) with nozzle needle stand (14), fuel stream is released by at least one jetburner (13) or interrupts, wherein, described pressure chamber (16) be divided into one from nozzle needle stand pressure store chamber (26) and far away from the near valve needle pressure chamber (25) of nozzle needle stand, and wherein, between described pressure store chamber (26) and described valve needle pressure chamber (25), be provided with one and be configured to the circumferential weld throttle valve, the throttle element of hydraulic pressure (40), it is characterized in that, circumferential weld throttle element (41.1 to 41.n) in succession at least two flow directions at fuel is set on described valve needle (15).
2. according to the fuel injector of claim 1, it is characterized in that described at least two circumferential weld throttle elements (41.1 to 41.n) are made of an endless belt (44) that is arranged on circumferential surface on the ejector pin (15), that have a thin-walled (45) respectively.
3. according to the fuel injector of claim 2, it is characterized in that structure one circumferential weld s between the wall (49,50) of the circumferential surface (45) of each endless belt (44) and pressure chamber (16).
4. according to the fuel injector of claim 3, it is characterized in that, the circumferential surface (45) of each endless belt (44) has substantially the same diameter d 1, and the corresponding circumferential weld s between the wall (49) of the circumferential surface (45) of each endless belt (44) and pressure chamber (16) is substantially the same.
5. according to the fuel injector of claim 3, it is characterized in that the circumferential surface (45) of the endless belt (44) of described at least two circumferential weld throttle elements (41.1 to 41.n) has the diameter d 2.1 that reduces to d2.n on the flow direction of fuel.
6. according to the fuel injector of claim 5, it is characterized in that described pressure chamber (16) have the diameter d 2.1 of circumferential surface (45) of an adaptive endless belt (44) to wall d2.n, step-like (50), make the fuel stream that produces waterfall shape.
7. according to the fuel injector of claim 6, it is characterized in that the circumferential weld s1 to sn of structure is identical basically between the wall (50) of circumferential surface (45) each endless belt (44), that have respective diameters d2.1 to d2.n and respective steps shape.
8. the fuel injector that one of requires according to aforesaid right, it is characterized in that, on a nozzle body (12), be configured to form circumferential weld s, the described wall (49 of s1 to sn, 50), be directed in the near valve needle guiding element (23) of nozzle needle stand one at valve needle described in this nozzle body (15).
9. fuel injector according to Claim 8 is characterized in that, described at least two circumferential weld throttle elements (41.1 to 41.n) are arranged on described valve needle guiding element (23) before on the flow direction of fuel.
10. according to the fuel injector of claim 1, it is characterized in that, one control room sleeve (51) is being directed on described valve needle (15), this control room sleeve is gauge one control room (21) hydraulically, and described at least two circumferential weld throttle elements (41.1 to 41.n) are arranged on described control room sleeve (51) and between the near valve needle guiding element (23) of nozzle needle stand.
11. fuel injector according to claim 10, it is characterized in that, described valve needle (15) is with respect to being directed in another valve needle guiding element (56) near valve needle guiding element (23) compartment of terrain of nozzle needle stand, and described at least two circumferential weld throttle elements (41.1 to 41.n) are arranged between described two valve needle guiding elements (23,56).
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102009000206.5 | 2009-01-14 | ||
| DE200910000206 DE102009000206A1 (en) | 2009-01-14 | 2009-01-14 | Fuel injector for internal combustion engines |
| PCT/EP2009/065278 WO2010081574A1 (en) | 2009-01-14 | 2009-11-17 | Fuel injector for internal combustion engines |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102282354A true CN102282354A (en) | 2011-12-14 |
Family
ID=41682737
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009801546532A Pending CN102282354A (en) | 2009-01-14 | 2009-11-17 | Fuel injector for internal combustion engines |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP2387661B1 (en) |
| CN (1) | CN102282354A (en) |
| DE (1) | DE102009000206A1 (en) |
| WO (1) | WO2010081574A1 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104847556A (en) * | 2015-05-19 | 2015-08-19 | 中国重汽集团重庆燃油喷射系统有限公司 | Non-static leakage oil sprayer |
| CN109681360A (en) * | 2019-02-28 | 2019-04-26 | 一汽解放汽车有限公司 | A kind of long needle-valve for fuel injection valve |
| CN110529317A (en) * | 2019-08-23 | 2019-12-03 | 一汽解放汽车有限公司 | A kind of fuel injection valve valve pocket assembly |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102009029562A1 (en) * | 2009-07-30 | 2011-02-03 | Robert Bosch Gmbh | Fuel injection valve for internal combustion engines |
| DE102010043363A1 (en) | 2010-11-04 | 2012-05-10 | Robert Bosch Gmbh | Magnet armature assembly of fuel injector for injecting fuel into combustion chamber of combustion engine, has compression springs that are arranged radially at equal angular distances from one another along longitudinal axis |
| DE102011077464A1 (en) | 2011-06-14 | 2012-12-20 | Robert Bosch Gmbh | Fuel injector for an internal combustion engine |
| EP2568157A1 (en) * | 2011-09-08 | 2013-03-13 | Delphi Technologies Holding S.à.r.l. | Injection Nozzle |
| EP2818687A1 (en) * | 2013-06-27 | 2014-12-31 | Delphi International Operations Luxembourg S.à r.l. | Fuel injector |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10019153A1 (en) * | 2000-04-18 | 2001-10-25 | Bosch Gmbh Robert | Fuel injection valve for IC engines has valve bore with valve member and valve piston loaded by hydraulic closing force to engage on valve member |
| DE10149961A1 (en) * | 2001-10-10 | 2003-04-30 | Bosch Gmbh Robert | Fuel injection device for internal combustion engine, especially common rail injector, has flow path control sections interacting to give defined flow characteristic against time |
| DE10348928A1 (en) * | 2003-10-18 | 2005-05-12 | Bosch Gmbh Robert | Fuel injection device for automobile internal combustion engine has throttle in path of fuel to injection opening for reducing force acting on jet needle in opening direction |
| JP4608555B2 (en) * | 2005-02-22 | 2011-01-12 | シーメンス ヴィディーオー オートモーティヴ コーポレイション | Fuel injection assembly |
| DE102006036447A1 (en) | 2006-08-04 | 2008-02-07 | Robert Bosch Gmbh | Injector for a fuel injection system |
| DE102007032741A1 (en) | 2007-07-13 | 2009-01-15 | Robert Bosch Gmbh | Fuel injection valve for internal combustion engines |
| US7690588B2 (en) * | 2007-07-31 | 2010-04-06 | Caterpillar Inc. | Fuel injector nozzle with flow restricting device |
-
2009
- 2009-01-14 DE DE200910000206 patent/DE102009000206A1/en not_active Withdrawn
- 2009-11-17 EP EP09753107A patent/EP2387661B1/en active Active
- 2009-11-17 WO PCT/EP2009/065278 patent/WO2010081574A1/en active Application Filing
- 2009-11-17 CN CN2009801546532A patent/CN102282354A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104847556A (en) * | 2015-05-19 | 2015-08-19 | 中国重汽集团重庆燃油喷射系统有限公司 | Non-static leakage oil sprayer |
| CN109681360A (en) * | 2019-02-28 | 2019-04-26 | 一汽解放汽车有限公司 | A kind of long needle-valve for fuel injection valve |
| CN110529317A (en) * | 2019-08-23 | 2019-12-03 | 一汽解放汽车有限公司 | A kind of fuel injection valve valve pocket assembly |
Also Published As
| Publication number | Publication date |
|---|---|
| DE102009000206A1 (en) | 2010-07-15 |
| EP2387661A1 (en) | 2011-11-23 |
| EP2387661B1 (en) | 2012-10-03 |
| WO2010081574A1 (en) | 2010-07-22 |
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| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| AD01 | Patent right deemed abandoned |
Effective date of abandoning: 20111214 |
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| C20 | Patent right or utility model deemed to be abandoned or is abandoned |