EP1155231A1 - Fuel injection valve - Google Patents
Fuel injection valveInfo
- Publication number
- EP1155231A1 EP1155231A1 EP00993232A EP00993232A EP1155231A1 EP 1155231 A1 EP1155231 A1 EP 1155231A1 EP 00993232 A EP00993232 A EP 00993232A EP 00993232 A EP00993232 A EP 00993232A EP 1155231 A1 EP1155231 A1 EP 1155231A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- armature
- fuel injection
- injection valve
- edge
- recess
- 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
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
- 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
-
- 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
- F02M51/061—Injectors peculiar thereto with means directly operating the valve needle using electromagnetic operating means
- F02M51/0625—Injectors peculiar thereto with means directly operating the valve needle using electromagnetic operating means characterised by arrangement of mobile armatures
- F02M51/0664—Injectors peculiar thereto with means directly operating the valve needle using electromagnetic operating means characterised by arrangement of mobile armatures having a cylindrically or partly cylindrically shaped armature, e.g. entering the winding; having a plate-shaped or undulated armature entering the winding
-
- 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
- F02M51/061—Injectors peculiar thereto with means directly operating the valve needle using electromagnetic operating means
- F02M51/0625—Injectors peculiar thereto with means directly operating the valve needle using electromagnetic operating means characterised by arrangement of mobile armatures
- F02M51/0664—Injectors peculiar thereto with means directly operating the valve needle using electromagnetic operating means characterised by arrangement of mobile armatures having a cylindrically or partly cylindrically shaped armature, e.g. entering the winding; having a plate-shaped or undulated armature entering the winding
- F02M51/0671—Injectors peculiar thereto with means directly operating the valve needle using electromagnetic operating means characterised by arrangement of mobile armatures having a cylindrically or partly cylindrically shaped armature, e.g. entering the winding; having a plate-shaped or undulated armature entering the winding the armature having an elongated valve body attached thereto
- F02M51/0682—Injectors peculiar thereto with means directly operating the valve needle using electromagnetic operating means characterised by arrangement of mobile armatures having a cylindrically or partly cylindrically shaped armature, e.g. entering the winding; having a plate-shaped or undulated armature entering the winding the armature having an elongated valve body attached thereto the body being hollow and its interior communicating with the fuel flow
-
- 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
- F02M2200/07—Fuel-injection apparatus having means for avoiding sticking of valve or armature, e.g. preventing hydraulic or magnetic sticking of parts
Definitions
- the invention relates to a fuel injector according to the preamble of the main claim.
- an electromagnetically actuated fuel injection valve which has a magnetic coil enclosing a ferromagnetic core in a housing.
- a flat armature is arranged between a valve seat support which is fixedly connected to the housing and the end face of the housing.
- the flat anchor interacts with the housing and core via two working air gaps and is guided radially by means of a guide membrane that grips around the valve and is fixed to the housing.
- the connection between the flat armature and the valve closing part is established via a ring comprising the valve closing part, which is welded to the flat armature.
- the valve closing part is subjected to closing pressure via a coil spring.
- Fuel channels and the geometry of the flat anchor in particular the lowering of the areas adjacent to the fuel channels, allow the armature to flow around the fuel.
- a disadvantage of the fuel injector known from DE 35 35 438 AI is the high tendency to cavitation due to the large cavities through which the fuel flows, in where currents and eddies arise.
- the displacement of the fuel when the armature is tightened is delayed due to the high flow resistance and thus has an adverse effect on the opening time of the fuel injector.
- the cavitation is also reinforced by the position of the flow openings, which are not located at the apex, but in the flank of the flat anchor.
- DE 31 43 849 C2 uses a similarly shaped flat armature in a fuel injector.
- the flow openings are made at the vertices of the flat anchor;
- the hydrodynamic properties are only slightly improved by the still raised edge of the armature, which is aligned parallel to the anchor stop surface and makes it impossible to displace the fuel into the edge areas of the armature.
- an electromagnetically actuated fuel injection valve is known, the armature of which is characterized in that the armature stop surface facing the inner pole is designed to be slightly wedge-shaped in order to reduce the hydraulic damping when the fuel injector is opened and the hydraulic adhesive force after the current that energizes the solenoid coil is switched off to minimize or completely prevent. Furthermore, the stop surface of the armature is designed to be wear-resistant by suitable measures such as vapor deposition and nitriding, so that the stop surface has the same size throughout the life of the fuel injector and the operation of the fuel injector is not impaired.
- a disadvantage of the fuel injector known from EP 0 683 862 B1 is above all the hydraulic damping force which is still present in the working gap when the armature is tightened, despite the optimized armature stop surface. Is an excitation current to the solenoid applied, the armature moves in the direction of the inner pole and displaces the fuel present between the inner pole and the armature. Due to the effects of friction and inertia, a local pressure field is created which generates a hydraulic force on the anchor stop surface that acts against the direction of movement of the anchor. This extends the opening and metering times of the fuel injector.
- the fuel injector according to the invention with the features of the main claim has the advantage that the hydraulic damping force is significantly reduced by suitable geometric design of the armature and thus the fuel injector can be opened faster, which results in m more precise metering times and quantities.
- a favorable geometry of the anchor stop surface is achieved by chamfering the edge regions of the anchor stop surface in opposite directions.
- the anchor has two annular edge zones, the inner edge zone being inclined inwards to the inner radius, while the outer edge zone is inclining outwards to the outer radius.
- the anchor stop surface is thus limited by inclined surfaces.
- the angle of inclination of the edge surfaces influences the flow behavior of the fuel in the working gap.
- the anchor stop surface is reduced by the geometric design, which means that the wear surface is smaller.
- the installation of axial channels in the armature is particularly advantageous, as a result of which the existing in the working gap Fuel is given the opportunity to flow through it when the armature is actuated.
- the channels are advantageously arranged in depressions, which further improves the flow behavior, since the fuel can escape through the armature without delay.
- the same effect can also be achieved by recesses which are provided at regular intervals on the outer edge of the anchor.
- the fuel is displaced to the outer edge of a central recess of the fuel injector receiving the armature due to the shape of the armature stop surface which is chamfered outwards and can flow out through the recesses in the armature.
- the depressions can be limited by an inclined and a vertical surface.
- Another possible design variant provides for a different height for the raised ring-shaped vertices formed by the inclined surfaces, so that only a minimal surface serves as the anchor stop surface.
- An annular recess on the magnetic surface in the area of the solenoid coil has a positive effect on the hydraulic damping due to a local enlargement of the working gap.
- Fig. 1 shows an axial section through a fuel injector according to the state of the
- Fig. 2 shows a schematic, enlarged section through a first embodiment of a Anchor of an inventive
- FIG. 3 shows a plan view of the anchor stop surface of the anchor in FIG. 2,
- FIG. 4 shows a schematic, enlarged section through a second exemplary embodiment of an armature of a fuel injector according to the invention
- FIG. 5 shows a schematic, enlarged section through a third exemplary embodiment of an armature of a fuel injector according to the invention
- Fig. 6 is a schematic, enlarged section through a fourth embodiment of an armature of a fuel injector according to the invention.
- Fig. 7 is a plan view of the armature stop surface of a fifth embodiment of an armature of a fuel injector according to the invention.
- the fuel fine injection valve 1 is in the form of an injection valve for fuel injection systems of mixture-compressing, spark-ignition internal combustion engines executed.
- the fuel injection valve 1 is particularly suitable for injecting fuel into an intake manifold 7 of an internal combustion engine.
- the measures for reducing the hydraulic armature damping described in more detail below are also suitable for high-pressure injection valves that directly inject into a combustion chamber.
- the fuel injector 1 comprises a core 25 which is encapsulated with a plastic sheath 16.
- a valve needle 3 is connected to a valve closing body 4, which cooperates with a valve seat surface 6 arranged on a valve seat body 5 to form a sealing seat.
- fuel injector 1 is a fuel injector 1 that opens inwards and that injects into an eye tube 7.
- the core 25 forms an inner pole 11 of a magnetic flux circuit.
- a magnetic coil 8 is encapsulated in the plastic casing 16 and wound on a coil carrier 10, which bears against the core 25.
- the core 25 and a nozzle body 2 serving as an outer pole are separated from one another by a gap 12 and are supported on a non-magnetic connecting component 13.
- the magnetic coil 8 is excited via an electrical line 14 by an electrical current that can be supplied via a plug contact 15.
- the magnetic flux circuit is through a z.
- a restoring spring 18 is supported on the valve needle 3 and is preloaded by a sleeve 19 in the present design of the fuel injection valve 1.
- the valve needle 3 is non-positively connected to an armature 21 via a weld seam 20.
- the fuel is supplied through a central fuel supply 23 via a filter 24.
- valve closing body 4 6 m sealing system is held at the valve seat.
- the magnet coil 8 When the magnet coil 8 is excited, it builds up a magnetic field which moves the armature 21 against the spring force of the return spring 18 in the stroke direction.
- the armature 21 also takes the valve needle 3 with it in the stroke direction.
- Related valve-closure member 4 lifts off from valve seat surface 6 and fuel is above about radial bores 22a m to valve needle 3, a recess 22b in Ventilsitzkorper 5 and flat portions 22c guided on the valve-closure member 4 to the sealing seat.
- FIG. 2 shows a partial axial sectional view of a first exemplary embodiment of the embodiment of the invention
- Fuel injection valve 1 Only those components are shown in the enlarged view that are of essential importance in relation to the invention. The design of the other components can be done with a known fuel injector 1, e.g. B. with the fuel injector 1 shown in FIG. 1, be identical. Elements already described are provided with the same reference numerals, so that a repetitive description is unnecessary.
- the anchor 21 already described in FIG. 1, which in FIG. 1 is designed as a so-called plunger anchor 21, is in the form of a flat anchor 21 in FIGS. 2 to 7. Only one half of the armature 21 is shown on the right of the symmetrical longitudinal axis 30 in FIGS. 2 to 6. 2, the armature 21 has two edge zones 31a, 31b, which are characterized by surfaces 32 which are inclined relative to one another.
- the surface 32 of the inner edge zone 31a is delimited by an inner edge 47 of the flat anchor 21 which delimits a central recess 48 and is inclined to the inner edge 47, while the surface 32 of the outer edge zone 31b is delimited by an outer edge 46 and is inclined to the outer edge 46.
- Two depressions 34 are formed between the edge zones 31a, 31b, each of which is characterized by two inwardly inclined surfaces 32.
- the depressions 34 are connected to axial channels 35, which run parallel to the longitudinal axis 30 of the armature 21 and penetrate the armature 21.
- a recess 36 on a magnetic pole surface 44 of a magnetic body 43 which is annular and locally enlarges a working gap 37 between the armature stop surface 42 and the magnetic pole surface 44.
- the recess 36 can extend as far as the magnetic coil 8.
- another component that separates the magnetic coil 8 from the fuel can also be provided.
- FIG. 3 shows an armature 21 of the exemplary embodiment in FIG. 2 of the embodiment of the fuel injection valve 1 according to the invention in a partial plan view.
- Raised concentric vertices 33 at which the inclined surfaces 32 adjoin one another, form three ring-shaped residual anchor stop surfaces 38.
- the armature 21 no longer strikes the entire armature stop surface 42 on the magnetic body 43, but rather with the ring-shaped residual anchor stop surfaces formed by the vertices 33 38.
- the closing process is accelerated, since the smaller residual anchor stop surface 38 also experiences a lower hydraulic adhesive force and the armature 21 is thus more easily detached from the magnetic body 43.
- Depressed concentric apices 39 lie in the depressions 34. At regular intervals there are channels 35 in the depressions 34 which penetrate the anchor 21 parallel to the longitudinal axis 30 of the anchor 21.
- the diameter of the channels 35 can also be made variable, so that channels 35 of different dimensions are fitted in each of the depressions 34 in accordance with the feed area increasing with the diameter.
- the number and the dimension of the channels 35 influence the flow behavior of the fuel considerably. 3 therefore shows channels 35 with a larger diameter in the recess closer to the outer edge 46 of the armature 21 and 34 channels 35 with a smaller diameter in the recess located further inside. A particularly advantageous arrangement of the channels 35 is present if they lie on a line in the radial direction.
- Fig. 4 shows a partial axial section of a second embodiment of an embodiment of the invention
- the depressions 34 do not consist of two adjacent, inclined surfaces 32.
- the two depressions 34 each have an inclined surface 32 and a surface 40 running parallel to the longitudinal axis 30 of the armature 21.
- the channels 35 and the annular recess 36 of the magnetic body 43 located in the area of the magnetic coil 8 are designed as in the first exemplary embodiment in FIG. 2.
- the sawtooth-shaped design of the depressions 34 is a particularly simple embodiment of the armature 21.
- FIG. 5 shows a third exemplary embodiment of an embodiment of the fuel injector 1 according to the invention in a partial axial sectional view.
- the exemplary embodiment described here is a simplified variant of the exemplary embodiment in FIG. 2.
- the anchor stop surface 42 here also has two edge zones 31a, 31b, which are delimited by two surfaces 32 which are inclined relative to one another. Channels 35 are located in the only intermediate recess 34.
- Fig. 6 shows a partial axial sectional view of a fourth embodiment of an inventive design of the
- FIG. 6 shows a top view of the armature stop surface 42 of a fifth exemplary embodiment of an embodiment of the fuel injection valve 1 according to the invention.
- recesses 41 are provided on the outer edge 46 of the armature. This also leads to a reduction in the effective anchor stop surface 38 and to a rapid displacement of the fuel on the edge over the inclined surface 32 of the edge zone 31b.
- the invention is not limited to the exemplary embodiment shown and can also be implemented with a large number of other designs of fuel injection valves.
- the invention can also be used with plunger anchors 21.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Fuel-Injection Apparatus (AREA)
Abstract
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19960605 | 1999-12-16 | ||
DE19960605A DE19960605A1 (en) | 1999-12-16 | 1999-12-16 | Fuel injector |
PCT/DE2000/004450 WO2001044652A1 (en) | 1999-12-16 | 2000-12-14 | Fuel injection valve |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1155231A1 true EP1155231A1 (en) | 2001-11-21 |
EP1155231B1 EP1155231B1 (en) | 2005-10-26 |
Family
ID=7932826
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP00993232A Expired - Lifetime EP1155231B1 (en) | 1999-12-16 | 2000-12-14 | Fuel injection valve |
Country Status (9)
Country | Link |
---|---|
US (1) | US6758419B2 (en) |
EP (1) | EP1155231B1 (en) |
JP (1) | JP2003517141A (en) |
CN (1) | CN1186526C (en) |
BR (1) | BR0008230A (en) |
CZ (1) | CZ295771B6 (en) |
DE (2) | DE19960605A1 (en) |
ES (1) | ES2249327T3 (en) |
WO (1) | WO2001044652A1 (en) |
Families Citing this family (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10039083A1 (en) * | 2000-08-10 | 2002-02-21 | Bosch Gmbh Robert | Fuel injector |
DE10148592A1 (en) * | 2001-10-02 | 2003-04-10 | Bosch Gmbh Robert | Fuel injector |
DE10256662A1 (en) * | 2002-12-04 | 2004-06-17 | Robert Bosch Gmbh | Fuel injector |
DE10325442A1 (en) * | 2003-06-05 | 2004-12-23 | Robert Bosch Gmbh | Solenoid valve with reduced switching noise |
US7156368B2 (en) * | 2004-04-14 | 2007-01-02 | Cummins Inc. | Solenoid actuated flow controller valve |
WO2006095706A1 (en) * | 2005-03-09 | 2006-09-14 | Keihin Corporation | Fuel injection valve |
DE102008042593A1 (en) * | 2008-10-02 | 2010-04-08 | Robert Bosch Gmbh | Fuel injector and surface treatment methods |
US8316826B2 (en) * | 2009-01-15 | 2012-11-27 | Caterpillar Inc. | Reducing variations in close coupled post injections in a fuel injector and fuel system using same |
JP5689395B2 (en) * | 2011-09-28 | 2015-03-25 | ナブテスコ株式会社 | solenoid valve |
DE102014221586A1 (en) * | 2014-10-23 | 2016-04-28 | Robert Bosch Gmbh | fuel injector |
DE102017222951A1 (en) * | 2017-12-15 | 2019-06-19 | Robert Bosch Gmbh | Electromagnetically actuated inlet valve and high-pressure fuel pump |
CN114635818A (en) * | 2022-03-09 | 2022-06-17 | 哈尔滨工程大学 | High-speed electromagnetic valve for realizing stable injection of common rail fuel injector by utilizing flexible hydraulic damping |
Family Cites Families (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3143849A1 (en) | 1981-11-05 | 1983-05-11 | Robert Bosch Gmbh, 7000 Stuttgart | ELECTROMAGNETICALLY ACTUABLE VALVE, ESPECIALLY FUEL INJECTION VALVE |
DE3207918A1 (en) * | 1982-03-05 | 1983-09-15 | Robert Bosch Gmbh, 7000 Stuttgart | ELECTROMAGNETICALLY ACTUABLE VALVE |
DE3305039A1 (en) * | 1983-02-14 | 1984-08-16 | Robert Bosch Gmbh, 7000 Stuttgart | ELECTROMAGNETICALLY ACTUABLE VALVE |
GB8519251D0 (en) * | 1985-07-31 | 1985-09-04 | Lucas Ind Plc | Fuel injector |
DE3535438A1 (en) | 1985-10-04 | 1987-04-09 | Bosch Gmbh Robert | Electromagnetically operable valve |
DE3704543A1 (en) * | 1987-02-13 | 1988-08-25 | Vdo Schindling | Fuel injection valve |
DE3714693A1 (en) * | 1987-05-02 | 1988-11-10 | Bosch Gmbh Robert | ELECTROMAGNETICALLY ACTUABLE VALVE |
DE3727342A1 (en) * | 1987-08-17 | 1989-03-02 | Bosch Gmbh Robert | ELECTROMAGNETICALLY ACTUABLE FUEL INJECTION VALVE |
GB8728628D0 (en) * | 1987-12-08 | 1988-01-13 | Lucas Ind Plc | Fuel injection valve |
US5372313A (en) * | 1993-02-16 | 1994-12-13 | Siemens Automotive L.P. | Fuel injector |
WO1995016126A1 (en) | 1993-12-09 | 1995-06-15 | Robert Bosch Gmbh | Electromagnetic valve |
US5417373A (en) | 1994-02-10 | 1995-05-23 | Siemens Automotive L.P. | Electromagnet for valves |
DE19503821A1 (en) * | 1995-02-06 | 1996-08-08 | Bosch Gmbh Robert | Electromagnetically actuated valve |
DE19712590A1 (en) * | 1997-03-26 | 1998-10-01 | Bosch Gmbh Robert | Electromagnetically actuated valve |
DE19905721A1 (en) * | 1998-02-24 | 1999-08-26 | Hoerbiger Ventilwerke Gmbh | Electromagnetically actuated gas valve for use as a fuel injection valve in a gas engine |
-
1999
- 1999-12-16 DE DE19960605A patent/DE19960605A1/en not_active Withdrawn
-
2000
- 2000-12-14 WO PCT/DE2000/004450 patent/WO2001044652A1/en active IP Right Grant
- 2000-12-14 US US09/913,657 patent/US6758419B2/en not_active Expired - Fee Related
- 2000-12-14 CN CNB008038643A patent/CN1186526C/en not_active Expired - Fee Related
- 2000-12-14 JP JP2001545716A patent/JP2003517141A/en active Pending
- 2000-12-14 ES ES00993232T patent/ES2249327T3/en not_active Expired - Lifetime
- 2000-12-14 CZ CZ20012970A patent/CZ295771B6/en not_active IP Right Cessation
- 2000-12-14 DE DE50011450T patent/DE50011450D1/en not_active Expired - Fee Related
- 2000-12-14 EP EP00993232A patent/EP1155231B1/en not_active Expired - Lifetime
- 2000-12-14 BR BR0008230-9A patent/BR0008230A/en active Search and Examination
Non-Patent Citations (1)
Title |
---|
See references of WO0144652A1 * |
Also Published As
Publication number | Publication date |
---|---|
US20020125343A1 (en) | 2002-09-12 |
JP2003517141A (en) | 2003-05-20 |
WO2001044652A1 (en) | 2001-06-21 |
BR0008230A (en) | 2001-10-30 |
CN1340133A (en) | 2002-03-13 |
US6758419B2 (en) | 2004-07-06 |
CN1186526C (en) | 2005-01-26 |
EP1155231B1 (en) | 2005-10-26 |
CZ295771B6 (en) | 2005-11-16 |
ES2249327T3 (en) | 2006-04-01 |
DE50011450D1 (en) | 2005-12-01 |
DE19960605A1 (en) | 2001-07-19 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
DE4018256A1 (en) | ELECTROMAGNETICALLY ACTUABLE FUEL INJECTION VALVE | |
DE20121437U1 (en) | Fuel injector with a control chamber with a floating bush | |
DE102006052817A1 (en) | Fuel injection valve for e.g. direct injection of fuel into combustion chamber of internal combustion engine, has valve seat body and closing body provided with rigidity-reducing element that is designed as recess i.e. circulating groove | |
WO2002012711A1 (en) | Fuel injection valve | |
EP1434941A1 (en) | Fuel injection valve | |
EP1155231A1 (en) | Fuel injection valve | |
WO2004051073A1 (en) | Fuel injection valve | |
DE10360330A1 (en) | Fuel injection valve for fuel injection units on internal combustion engines has a valve needle, a sealing valve seat and an armature in a recess for a magnetic circuit's external pole | |
EP1309789A1 (en) | Fuel injection valve | |
DE10130205A1 (en) | Fuel injector | |
EP2521853A1 (en) | Fuel injection valve | |
EP1570170A1 (en) | Fuel-injection valve | |
DE10256667A1 (en) | Fuel injector | |
EP1425508A1 (en) | Fuel injection valve | |
DE10256661A1 (en) | Fuel injection valve for the fuel injection system of a fuel engine wherein the preliminary stroke spring is arranged radially outwards in a recess of the armature | |
DE10049034B4 (en) | Fuel injector | |
WO2002033244A1 (en) | Fuel injection valve | |
DE60320235T2 (en) | Injection nozzle with improved injection and method for its production | |
DE10052146A1 (en) | Fuel injector | |
EP1702156A1 (en) | Fuel injection valve | |
EP1300583B1 (en) | Fuel injection valve | |
DE3841010A1 (en) | ELECTROMAGNETICALLY ACTUABLE VALVE | |
DE10358726B4 (en) | Fuel injector | |
DE102021212790A1 (en) | Electromagnetically actuable valve and method of manufacture | |
DE10103932B4 (en) | Fuel injector |
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 |
|
AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR |
|
17P | Request for examination filed |
Effective date: 20011221 |
|
RBV | Designated contracting states (corrected) |
Designated state(s): DE ES FR GB |
|
17Q | First examination report despatched |
Effective date: 20041119 |
|
GRAP | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOSNIGR1 |
|
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): DE ES FR GB |
|
REG | Reference to a national code |
Ref country code: GB Ref legal event code: FG4D Free format text: NOT ENGLISH |
|
REF | Corresponds to: |
Ref document number: 50011450 Country of ref document: DE Date of ref document: 20051201 Kind code of ref document: P |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: FR Payment date: 20051220 Year of fee payment: 6 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: ES Payment date: 20051227 Year of fee payment: 6 |
|
GBT | Gb: translation of ep patent filed (gb section 77(6)(a)/1977) |
Effective date: 20060201 |
|
REG | Reference to a national code |
Ref country code: ES Ref legal event code: FG2A Ref document number: 2249327 Country of ref document: ES Kind code of ref document: T3 |
|
ET | Fr: translation filed | ||
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: 20060727 |
|
GBPC | Gb: european patent ceased through non-payment of renewal fee |
Effective date: 20061214 |
|
REG | Reference to a national code |
Ref country code: FR Ref legal event code: ST Effective date: 20070831 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: GB Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20061214 |
|
REG | Reference to a national code |
Ref country code: ES Ref legal event code: FD2A Effective date: 20061215 |
|
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: 20070102 Ref country code: ES Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20061215 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: GB Payment date: 20051220 Year of fee payment: 6 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: DE Payment date: 20090224 Year of fee payment: 9 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: DE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20100701 |