EP2539575A1 - Kraftstoffinjektor sowie verfahren zur herstellung und/oder montage einer düsennadel-baugruppe - Google Patents
Kraftstoffinjektor sowie verfahren zur herstellung und/oder montage einer düsennadel-baugruppeInfo
- Publication number
- EP2539575A1 EP2539575A1 EP11703208A EP11703208A EP2539575A1 EP 2539575 A1 EP2539575 A1 EP 2539575A1 EP 11703208 A EP11703208 A EP 11703208A EP 11703208 A EP11703208 A EP 11703208A EP 2539575 A1 EP2539575 A1 EP 2539575A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- coupler
- nozzle needle
- piston
- fuel injector
- pressure
- 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.)
- Granted
Links
- 239000000446 fuel Substances 0.000 title claims abstract description 50
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 8
- 238000000034 method Methods 0.000 title claims abstract description 8
- 230000008878 coupling Effects 0.000 claims abstract description 18
- 238000010168 coupling process Methods 0.000 claims abstract description 18
- 238000005859 coupling reaction Methods 0.000 claims abstract description 18
- 238000002347 injection Methods 0.000 claims abstract description 17
- 239000007924 injection Substances 0.000 claims abstract description 17
- 239000000463 material Substances 0.000 claims description 4
- 238000007789 sealing Methods 0.000 description 7
- 238000003466 welding Methods 0.000 description 5
- 238000002485 combustion reaction Methods 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 238000013016 damping Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000011161 development Methods 0.000 description 2
- 230000018109 developmental process Effects 0.000 description 2
- 230000002349 favourable effect Effects 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000000284 resting effect Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M51/00—Fuel-injection apparatus characterised by being operated electrically
- F02M51/06—Injectors peculiar thereto with means directly operating the valve needle
- F02M51/0603—Injectors peculiar thereto with means directly operating the valve needle using piezoelectric or magnetostrictive operating means
-
- 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
- F02M63/00—Other fuel-injection apparatus having pertinent characteristics not provided for in groups F02M39/00 - F02M57/00 or F02M67/00; Details, component parts, or accessories of fuel-injection apparatus, not provided for in, or of interest apart from, the apparatus of groups F02M39/00 - F02M61/00 or F02M67/00; Combination of fuel pump with other devices, e.g. lubricating oil pump
- F02M63/0012—Valves
- F02M63/0014—Valves characterised by the valve actuating means
- F02M63/0015—Valves characterised by the valve actuating means electrical, e.g. using solenoid
- F02M63/0026—Valves characterised by the valve actuating means electrical, e.g. using solenoid using piezoelectric or magnetostrictive actuators
-
- 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
- F02M2200/70—Linkage between actuator and actuated element, e.g. between piezoelectric actuator and needle valve or pump plunger
- F02M2200/703—Linkage between actuator and actuated element, e.g. between piezoelectric actuator and needle valve or pump plunger hydraulic
-
- 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
- F02M2200/70—Linkage between actuator and actuated element, e.g. between piezoelectric actuator and needle valve or pump plunger
- F02M2200/703—Linkage between actuator and actuated element, e.g. between piezoelectric actuator and needle valve or pump plunger hydraulic
- F02M2200/704—Linkage between actuator and actuated element, e.g. between piezoelectric actuator and needle valve or pump plunger hydraulic with actuator and actuated element moving in different directions, e.g. in opposite directions
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/494—Fluidic or fluid actuated device making
Definitions
- the invention relates to a fuel injector for a fuel injection system, in particular a common rail injection system, for injecting fuel into the combustion chamber of an internal combustion engine with the features of the preamble of claim 1. Furthermore, the invention relates to a method for producing and / or assembling a nozzle needle assembly, which can be used in particular in such a fuel injector.
- a generic fuel injector for example, from the published patent application DE 10 2008 002 417 A1.
- the fuel injector described herein includes a piezo actuator housed in a relatively pressure-free actuator chamber.
- the piezoelectric actuator is hydraulically coupled to the nozzle needle of the injector such that the nozzle needle assumes its closed position when the piezoelectric actuator is discharged electrically and, on connection of the piezoelectric actuator, transitions to an electrical voltage source in the open position. That is, the opening stroke of the nozzle needle takes place in the opposite direction to Aktorhub.
- the coupling device thus causes a reversal of the direction of movement.
- the piezoelectric actuator is electrically charged only in the short injection phases and is electrically discharged in the longer periods of rest of the fuel injector and thus subject to a lower stress.
- This increases the life of the piezoelectric actuator provided for actuating the nozzle needle.
- As the life of the piezoelectric actuator extending measure also affects the arrangement of the piezoelectric actuator in a relatively pressure-free actuator Spaces. The actuator is thus not acted upon by the high pressure fuel. A high-pressure resistant sealing of the piezoelectric actuator is therefore also unnecessary.
- the specified in the published specification device for hydraulic coupling of the piezoelectric actuator with the nozzle needle also allows a path translation between the stroke of the actuator and the stroke of the nozzle needle by the displacer effective cross sections of the two pistons of the coupling device are dimensioned significantly different. As a result, a sufficient Düsennadelhub can be realized even with a small Aktorhub.
- the invention is based on the object, a fuel injector of the aforementioned type such that there is a greater freedom in terms of the surface design of the coupler piston to optimize a path translation.
- the structure of the coupler and the connection of the coupler to the nozzle needle to be simplified to provide a simple and inexpensive to produce fuel injector.
- the coupling means comprises a first and a second disc-shaped coupler body, each having a cylinder bore for receiving in each case a coupler space defining a coupler piston.
- the proposed design of the coupling device with two separate coupler bodies is easy to implement and thus inexpensive to produce.
- the area ratio of the formed on the coupler piston hydraulically effective surfaces for the realization of an optimum path ratio between the stroke of the actuator and the stroke of the nozzle needle is largely arbitrary.
- the diameter of the respective cylinder bore can be approximated. be pulled, in which the respective coupler piston is received.
- the diameter of the cylinder bore is also freely selectable.
- the coupling device By means of the coupling device, with a corresponding arrangement of the coupler pistons in the coupler bodies, a movement reversal can also be realized, so that the nozzle needle stroke takes place in the opposite direction to the stroke of the actuator.
- the piezoelectric actuator is arranged in a low-pressure space.
- the piezoelectric actuator can be configured as a "wet" or “dry” actuator, wherein in the latter case, the actuator has a corresponding seal, for example consisting of a metal sleeve with a membrane.
- the first and the second disc-shaped coupler body are arranged in the axial direction one behind the other lying between the nozzle body and the injector body.
- the two disk-shaped coupler body thus form housing parts which separate the low-pressure region from the high-pressure region. Furthermore, a simple and easy-to-install coupler design is created, which is also compact in the axial direction.
- the first disk-shaped coupler body axially delimits the high-pressure bore formed in the nozzle body.
- the second disc-shaped coupler body axially delimits the low-pressure space formed in the injector body.
- a connecting piston for mechanically connecting the nozzle needle to the first coupler body received in the first disc-shaped coupler body is connected to the nozzle needle.
- the connecting piston is guided by a guide bore formed in the coupler body.
- the connecting piston thus extends the nozzle needle into the low-pressure region.
- the mechanical connection of the connecting piston with the coupler piston can be done for example by welding and / or by a press fit.
- the connecting piston is guided through the guide bore and through the first coupler space at least up to the first coupler piston. This has the consequence that a pressure surface formed on the first coupler piston and delimiting the first coupler space is reduced by the cross-sectional area of the connecting piston.
- the connecting piston in the region of the high-pressure bore can be surrounded by a sleeve which bears sealingly against the first disk-shaped coupler body.
- the first coupler body can also be provided with a cylindrical projection for guiding the connecting piston and for sealing the guide bore with respect to the high-pressure bore.
- the guide bore has a low-pressure region, for example in the form of an annular groove, which communicates via a bore with the low-pressure chamber.
- the coupler spaces are hydraulically connected via bores in the disc-shaped coupler bodies.
- the volume of a coupler space changes due to the stroke of a coupler piston received therein, fuel is displaced via the connection bores from one coupler space into the other coupler space.
- a throttle is preferably formed in one of the bores connecting the two coupler spaces. The throttle causes a damping of the needle speed and a reduction of the map slope.
- the high-pressure bore formed in the nozzle body has a guide region for guiding the nozzle needle.
- the regions of the high-pressure bore adjacent to the guide region are preferably hydraulically connected via a throttle.
- closing forces are also generated by the coupling device.
- the low-pressure chamber is connected via a check valve with a return to realize a pressure increase in the low pressure chamber.
- a pressure increase to, for example, 150 bar is already considered sufficient.
- the nozzle needle and the first coupler piston accommodated in the first disk-shaped coupler body are mechanically coupled via a connecting piston, which is guided as part of the first coupler piston through a guide bore formed in the coupler body ,
- the connecting piston need not necessarily be part of the nozzle needle, but may also be part of the first coupler piston when it is guided through the guide bore during assembly of the injector.
- connection tion piston be integral with the first coupler piston or be connected to this in such a way that in a first assembly step, the integrally executed or built unit of first coupler piston and connecting piston is inserted into the guide bore of the coupler body and then in a second assembly step of the connecting piston with the Nozzle needle is connected.
- This has the advantage that the mechanical connection point is shifted from the low-pressure region into the high-pressure region. Fitting problems in the piston guides, which are caused for example by deformations during welding or compression, are thus avoided or shifted to a less sensitive area.
- the connecting piston with the nozzle needle and / or the first coupler piston force, material and / or positively connected can be made by means of welding or pressing.
- a screw connection can also be provided.
- at least one end portion of the connecting piston is provided with an external thread and inserted into a bore with an internal thread, which is formed in the first coupler piston and / or in the nozzle needle.
- the connecting piston can also be connected indirectly via a connecting piece with the nozzle needle.
- the connector preferably has the same outer diameter as the nozzle needle and is axially attached to the nozzle needle.
- the connection can be made for example by welding.
- a bore in particular a blind hole, may be formed in the connecting piece, in which an end portion of the connecting piston is inserted.
- the compound may be a press connection.
- a screw or a welded connection can be executed.
- the invention further provides a method for producing and / or assembling a nozzle needle assembly for a fuel injector, which comprises a nozzle needle, a coupler piston and a connecting piston, wherein the connecting piston has a smaller outer diameter than the coupler piston and / or the nozzle needle and part of the is one or more parts constructed coupler piston.
- the connecting piston is guided through a guide bore of a coupler body and then directly or indirectly connected to the Düsennadelkraft-, material and / or positive fit.
- the method leads to a nozzle needle assembly which can be used particularly advantageously in a fuel injector according to the invention.
- the nozzle needle assembly can also be used in modified designs and therefore not limited to use in an injector according to the invention.
- the connecting piston with the nozzle needle and / or a connecting piece for the indirect connection of the connecting piston with the nozzle needle which is welded, soldered, pressed, screwed and / or glued.
- connection of the connecting piston to the nozzle needle takes place indirectly via a connecting piece
- the connecting piece and the nozzle needle are furthermore preferably butted and welded together.
- FIG. 1 shows a longitudinal section through a first fuel injector according to the invention
- FIG. 2 shows a longitudinal section through a second fuel injector according to the invention.
- the fuel injector of FIG. 1 shown in longitudinal section has a nozzle body 1 for receiving a nozzle needle 4 and an injector body 2 for mounting Acquisition of a piezoelectric actuator 7 for actuating the nozzle needle 4.
- the nozzle needle 4 is received in a liftable manner in a high-pressure bore 3 of the nozzle body 1, so that at least one injection opening 5 formed in the nozzle body 1 can be released or closed via the nozzle needle stroke. If the nozzle needle 4 is in its open position, fuel under high pressure is injected via the at least one injection opening 5 into the combustion chamber of the internal combustion engine.
- the fuel is supplied to the fuel injector from a high-pressure accumulator 34, in the present case a common storage line (common rail).
- an inlet channel 35 is formed in the injector body 2, via which the fuel passes into the high-pressure bore 3 and thus to the at least one injection opening 5.
- the piezoelectric actuator 7 is connected via electrical connections 36 to an electrical voltage source (not shown). In the case of an electrically charged piezoactuator 7, this undergoes a length extension which represents the actuator stroke and which is converted into a stroke movement of the nozzle needle 4 on account of a coupling device 8.
- the present coupling device 8 is designed in such a way that a length extension of the piezoactuator 7 causes a movement of the nozzle needle 4 which is opposite to the direction of movement of the piezoactuator 7. This means that the piezoactuator 7 is electrically charged during the opening stroke of the nozzle needle 4, while it is discharged between two injection processes or in the closed position of the nozzle needle 4. As a result, the stress on the piezoelectric actuator 7 is reduced.
- the piezoelectric actuator 7 On the life of the piezoelectric actuator 7 also has a favorable effect that this is included in a low-pressure chamber 6 of the injector body 2. The piezoelectric actuator 7 is therefore not subjected to high pressure.
- the already mentioned coupling device 8 has two disc-shaped coupler bodies 9, 10, which are arranged one behind the other in the axial direction between the injector body 2 and the nozzle body 1.
- the two disc-shaped coupler bodies 9, 10 thus separate a low-pressure region assigned to the injector body 2 from a high-pressure region assigned to the nozzle body 1.
- the disk-shaped coupler body 9, which bears against the nozzle body seals the high-pressure bore 3 and the injector body 2 abutted against the injector body 2. ing disc-shaped coupler body 10 from the low-pressure chamber 6.
- the coupling device 8 can thus be completely displaced into the low-pressure region.
- each coupler piston 15, 16 within the respective cylinder bore 1 1, 12 a coupler space 13, 14 axially limited.
- the coupler piston surfaces delimiting the respective coupler space 13, 14 form pressure surfaces whose area ratio determines the transmission ratio between the actuator stroke and the nozzle needle stroke.
- a significantly larger pressure surface for limiting the second coupler space 14 is formed on the second coupler piston 16 which is assigned to the piezoactuator 7 than on the first coupler piston 15, which is connected to the nozzle needle 4 via a connecting piston 17.
- the connecting piston 17 is guided through a guide bore 18 in the first disc-shaped coupler body 9 and through the first coupler space 13, so that the pressure surface 19 delimiting the coupler space 13 on the first coupler piston 15 is reduced by the cross-sectional area of the connecting piston 17. Because the first coupler space 13 is arranged between the nozzle needle 4 and the first coupler piston 15, an increase in pressure in the first coupler space 13 causes the first coupler piston 15 and thus the nozzle needle 4 to be lifted. An increase in pressure in the first coupler space 13 takes place when, due to the length expansion of the piezoelectric actuator 7, the second coupler piston 16 dips deeper into the second coupler space 14 and thereby displaces fuel.
- the sleeve 20 on the front side designed as a biting edge support surface.
- the sleeve 20 is held in contact with the disc-shaped coupler body 9.
- the closing spring 31 also ensures that the nozzle needle 4 assumes its closed position when the piezoelectric actuator 7 is unloaded. If the arrangement of the sleeve 20 about the connecting piston 17 is not able to prevent leakage in the region of the guide bore 18, a leakage quantity entering the guide bore 18 is transmitted via an annular groove 21 and a bore 22 which connects the annular groove 21 to the low pressure chamber 6 Return 30 supplied. In this way, a defined coupler space pressure is ensured.
- a check valve 29 may be arranged, which allows an increase in pressure in the low-pressure chamber 6.
- closing forces can be realized via the coupling device 8, which are able to support a closing movement of the nozzle needle 4.
- a biasing spring 32 is also arranged, by means of which the piezoelectric actuator 7 is biased relative to the injector housing 2.
- the illustrated fuel injector has a guide region 27 formed in the high-pressure bore 3 for guiding the nozzle needle 4.
- the adjacent to the guide portion 27 areas of the high-pressure bore 3 are hydraulically connected via a throttle 28.
- the throttle 28 has a damping effect on the movement of the nozzle needle 4.
- the nozzle needle 4 also has an enlarged diameter, so that radially extending shoulders 26 are formed, which form a pressure stage.
- a needle stop 33 is provided for limiting the nozzle needle stroke, in the present case on the end face facing the nozzle needle 4 the sleeve 20 is formed.
- the needle stop 33 can also be arranged in the low pressure area.
- the embodiment of a fuel injector according to the invention shown in Figure 2 differs from that of Figure 1 essentially in that the connecting piston 17, by means of which the nozzle needle 4 and the first coupler piston 15 are mechanically coupled, is part of the first coupler piston 15.
- the connecting piston 17 and the first coupler piston 15 are inserted into the guide bore 18 as a built unit. That is, the connecting piston 17 is first connected to the coupler piston 15, in the present case welded, and then passed through the guide bore 18. On the passed-through end of the connecting piston 17, the sleeve 20 is then placed, which seals the high-pressure region relative to the low pressure region. Only then is the nozzle needle 4 placed with the connecting piece 37 and welded to the connecting piston.
- the connecting piece 37 forms a unit with the nozzle needle 4, wherein the connecting piece 37 and the nozzle needle 4 can also be made or built in one piece. In the present case, the connecting piece 37 is attached axially to the nozzle needle 4 and welded thereto.
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
Description
Claims
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102010002286 | 2010-02-24 | ||
| DE102010040581A DE102010040581A1 (de) | 2010-02-24 | 2010-09-10 | Kraftstoffinjektor sowie Verfahren zur Herstellung und/oder Montage einer Düsennadel-Baugruppe |
| PCT/EP2011/051778 WO2011104110A1 (de) | 2010-02-24 | 2011-02-08 | Kraftstoffinjektor sowie verfahren zur herstellung und/oder montage einer düsennadel-baugruppe |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP2539575A1 true EP2539575A1 (de) | 2013-01-02 |
| EP2539575B1 EP2539575B1 (de) | 2015-08-12 |
Family
ID=44356825
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP11703208.6A Not-in-force EP2539575B1 (de) | 2010-02-24 | 2011-02-08 | Kraftstoffinjektor mit einer düsennadel-baugruppe |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US9494116B2 (de) |
| EP (1) | EP2539575B1 (de) |
| CN (1) | CN102782302B (de) |
| DE (1) | DE102010040581A1 (de) |
| IN (1) | IN2012DN04948A (de) |
| WO (1) | WO2011104110A1 (de) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102012219867A1 (de) * | 2012-10-30 | 2014-04-30 | Robert Bosch Gmbh | Kraftstoffinjektor mit Piezoaktor |
| US11220980B2 (en) * | 2019-05-16 | 2022-01-11 | Caterpillar Inc. | Fuel system having isolation valves between fuel injectors and common drain conduit |
Family Cites Families (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56159530A (en) * | 1980-05-13 | 1981-12-08 | Diesel Kiki Co Ltd | Injection controller for fuel injection valve of internal- combustion engine |
| US4448169A (en) * | 1980-12-31 | 1984-05-15 | Cummins Engine Company, Inc. | Injector for diesel engine |
| DE4323683A1 (de) * | 1993-07-15 | 1995-01-19 | Bosch Gmbh Robert | Kraftstoffeinspritzpumpe |
| EP0745764B1 (de) * | 1995-06-02 | 2001-03-21 | Ganser-Hydromag Ag | Brennstoffeinspritzventil für Verbrennungskraftmaschinen |
| US6237570B1 (en) * | 1997-10-09 | 2001-05-29 | Denso Corporation | Accumulator fuel injection apparatus |
| US6598591B2 (en) * | 2001-12-18 | 2003-07-29 | Caterpillar Inc | Measuring check motion through pressure sensing |
| EP1613856B1 (de) * | 2003-04-02 | 2008-07-09 | Robert Bosch Gmbh | Servoventilangesteuerter kraftstoffinjektor mit druckübersetzer |
| DE10326045A1 (de) * | 2003-06-10 | 2004-12-30 | Robert Bosch Gmbh | Einspritzdüse für Brennkraftmaschinen |
| DE10333573B3 (de) * | 2003-07-24 | 2004-11-18 | Robert Bosch Gmbh | Kraftstoffeinspritzvorrichtung |
| BRPI0708551B1 (pt) * | 2006-03-03 | 2019-07-02 | Ganser-Hydromag Ag | Válvula de injeção de combustível para a injeção intermitente de combustível dentro da câmara de combustão de um motor de combustão interna |
| DE102006022802A1 (de) * | 2006-05-16 | 2007-11-22 | Robert Bosch Gmbh | Kraftstoffinjektor |
| JP2008151049A (ja) * | 2006-12-19 | 2008-07-03 | Nippon Soken Inc | 燃料噴射弁 |
| DE102007002759A1 (de) * | 2007-01-18 | 2008-07-24 | Robert Bosch Gmbh | Kraftstoffinjektor mit direkter Düsennadelsteuerung |
| JP5079650B2 (ja) * | 2007-11-02 | 2012-11-21 | 株式会社デンソー | 燃料噴射弁及び燃料噴射装置 |
| JP4780127B2 (ja) * | 2008-03-12 | 2011-09-28 | 株式会社デンソー | 燃料噴射装置 |
| JP4614189B2 (ja) | 2008-05-12 | 2011-01-19 | 株式会社デンソー | 燃料噴射装置 |
| DE102008002417A1 (de) | 2008-06-13 | 2009-12-17 | Robert Bosch Gmbh | Kraftstoffinjektor |
| DE102009002554A1 (de) | 2008-07-23 | 2010-01-28 | Robert Bosch Gmbh | Kraftstoffinjektor für ein Kraftstoffeinspritzsystem |
-
2010
- 2010-09-10 DE DE102010040581A patent/DE102010040581A1/de not_active Withdrawn
-
2011
- 2011-02-08 WO PCT/EP2011/051778 patent/WO2011104110A1/de not_active Ceased
- 2011-02-08 US US13/577,696 patent/US9494116B2/en not_active Expired - Fee Related
- 2011-02-08 EP EP11703208.6A patent/EP2539575B1/de not_active Not-in-force
- 2011-02-08 IN IN4948DEN2012 patent/IN2012DN04948A/en unknown
- 2011-02-08 CN CN201180010648.1A patent/CN102782302B/zh not_active Expired - Fee Related
Non-Patent Citations (1)
| Title |
|---|
| See references of WO2011104110A1 * |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2011104110A1 (de) | 2011-09-01 |
| CN102782302A (zh) | 2012-11-14 |
| US9494116B2 (en) | 2016-11-15 |
| EP2539575B1 (de) | 2015-08-12 |
| IN2012DN04948A (de) | 2015-09-25 |
| US20120305675A1 (en) | 2012-12-06 |
| DE102010040581A1 (de) | 2011-08-25 |
| CN102782302B (zh) | 2015-02-25 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP1931875B1 (de) | Hochdruckpumpe, insbesondere für eine kraftstoffeinspritzeinrichtung einer brennkraftmaschine | |
| DE102005009147A1 (de) | Kraftstoffinjektor für Verbrennungskraftmaschinen | |
| WO2007068518A1 (de) | Kraftstoffinjektor mit direkt betätigbarem einspritzventilglied | |
| EP2715103A1 (de) | Düsenbaugruppe für einen kraftstoffinjektor sowie kraftstoffinjektor | |
| DE102009047559A1 (de) | Kraftstoffinjektor | |
| EP2150696B1 (de) | Injektor für eine kraftstoffeinspritzanlage | |
| EP3149321A1 (de) | Düsenbaugruppe für einen kraftstoffinjektor sowie kraftstoffinjektor | |
| EP2539575B1 (de) | Kraftstoffinjektor mit einer düsennadel-baugruppe | |
| DE102012220860A1 (de) | Kraftstoffinjektor mit Magnetaktor | |
| WO2012034749A1 (de) | Kraftstoffinjektor | |
| DE102012219867A1 (de) | Kraftstoffinjektor mit Piezoaktor | |
| EP1538331B1 (de) | Brennstoffeinspritzventil | |
| EP1519036B1 (de) | Brennstoffeinspritzventil | |
| EP2472096A1 (de) | Einspritzventil zum Einspritzen eines Fluids | |
| EP2891789B1 (de) | Kraftstoffinjektor und Verfahren zum Herstellen eines Kraftstoffinjektors | |
| DE102009002742A1 (de) | Kraftstoff-Injektor | |
| DE102007002759A1 (de) | Kraftstoffinjektor mit direkter Düsennadelsteuerung | |
| DE102012224247A1 (de) | Kraftstoffinjektor und dessen Verwendung | |
| DE102005035671B4 (de) | Kraftstoffinjektor für eine Brennkraftmaschine | |
| DE102013224960A1 (de) | Kraftstoffinjektor | |
| DE10321693A1 (de) | Brennstoffeinspritzventil | |
| DE102014211469A1 (de) | Düsenbaugruppe für einen Kraftstoffinjektor sowie Kraftstoffinjektor | |
| EP2930345B1 (de) | Kraftstoffinjektor | |
| EP2884088B1 (de) | Kraftstoffinjektor | |
| EP3034856A1 (de) | Brennstoffeinspritzventil |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
| 17P | Request for examination filed |
Effective date: 20120924 |
|
| AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR |
|
| DAX | Request for extension of the european patent (deleted) | ||
| GRAP | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOSNIGR1 |
|
| INTG | Intention to grant announced |
Effective date: 20150521 |
|
| GRAS | Grant fee paid |
Free format text: ORIGINAL CODE: EPIDOSNIGR3 |
|
| GRAA | (expected) grant |
Free format text: ORIGINAL CODE: 0009210 |
|
| AK | Designated contracting states |
Kind code of ref document: B1 Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR |
|
| REG | Reference to a national code |
Ref country code: GB Ref legal event code: FG4D Free format text: NOT ENGLISH |
|
| REG | Reference to a national code |
Ref country code: CH Ref legal event code: EP |
|
| REG | Reference to a national code |
Ref country code: AT Ref legal event code: REF Ref document number: 742393 Country of ref document: AT Kind code of ref document: T Effective date: 20150815 |
|
| REG | Reference to a national code |
Ref country code: IE Ref legal event code: FG4D Free format text: LANGUAGE OF EP DOCUMENT: GERMAN |
|
| REG | Reference to a national code |
Ref country code: DE Ref legal event code: R096 Ref document number: 502011007561 Country of ref document: DE |
|
| REG | Reference to a national code |
Ref country code: LT Ref legal event code: MG4D |
|
| REG | Reference to a national code |
Ref country code: NL Ref legal event code: MP Effective date: 20150812 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: FI Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20150812 Ref country code: LV Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20150812 Ref country code: GR Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20151113 Ref country code: LT Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20150812 Ref country code: NO Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20151112 |
|
| REG | Reference to a national code |
Ref country code: FR Ref legal event code: PLFP Year of fee payment: 6 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: SE Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20150812 Ref country code: IS Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20151212 Ref country code: PT Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20151214 Ref country code: ES Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20150812 Ref country code: HR Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20150812 Ref country code: RS Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20150812 Ref country code: PL Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20150812 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: NL Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20150812 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: CZ Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20150812 Ref country code: SK Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20150812 Ref country code: DK Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20150812 Ref country code: EE Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20150812 Ref country code: IT Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20150812 |
|
| REG | Reference to a national code |
Ref country code: DE Ref legal event code: R097 Ref document number: 502011007561 Country of ref document: DE |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: RO Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20150812 Ref country code: BE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20160229 |
|
| PLBE | No opposition filed within time limit |
Free format text: ORIGINAL CODE: 0009261 |
|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT |
|
| 26N | No opposition filed |
Effective date: 20160513 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: SI Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20150812 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: MC Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20150812 Ref country code: LU Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20160208 |
|
| REG | Reference to a national code |
Ref country code: CH Ref legal event code: PL |
|
| GBPC | Gb: european patent ceased through non-payment of renewal fee |
Effective date: 20160208 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: LI Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20160229 Ref country code: CH Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20160229 |
|
| REG | Reference to a national code |
Ref country code: IE Ref legal event code: MM4A |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: IE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20160208 Ref country code: GB Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20160208 |
|
| REG | Reference to a national code |
Ref country code: FR Ref legal event code: PLFP Year of fee payment: 7 |
|
| REG | Reference to a national code |
Ref country code: AT Ref legal event code: MM01 Ref document number: 742393 Country of ref document: AT Kind code of ref document: T Effective date: 20160208 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: AT Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20160208 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: MT Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20150812 |
|
| REG | Reference to a national code |
Ref country code: FR Ref legal event code: PLFP Year of fee payment: 8 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: HU Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT; INVALID AB INITIO Effective date: 20110208 Ref country code: CY Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20150812 Ref country code: SM Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20150812 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: MK Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20150812 Ref country code: TR Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20150812 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: BG Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20150812 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: AL Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20150812 |
|
| PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: FR Payment date: 20190221 Year of fee payment: 9 |
|
| PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: DE Payment date: 20190423 Year of fee payment: 9 |
|
| REG | Reference to a national code |
Ref country code: DE Ref legal event code: R119 Ref document number: 502011007561 Country of ref document: DE |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: FR Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20200229 Ref country code: DE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20200901 |