EP1358402A1 - Fuel injection valve - Google Patents

Fuel injection valve

Info

Publication number
EP1358402A1
EP1358402A1 EP20020704617 EP02704617A EP1358402A1 EP 1358402 A1 EP1358402 A1 EP 1358402A1 EP 20020704617 EP20020704617 EP 20020704617 EP 02704617 A EP02704617 A EP 02704617A EP 1358402 A1 EP1358402 A1 EP 1358402A1
Authority
EP
European Patent Office
Prior art keywords
fuel injection
nozzle
injection valve
sealing
adapter sleeve
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
Application number
EP20020704617
Other languages
German (de)
French (fr)
Other versions
EP1358402B1 (en
Inventor
Ferdinand Reiter
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Robert Bosch GmbH
Original Assignee
Robert Bosch GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority to DE10103933 priority Critical
Priority to DE2001103933 priority patent/DE10103933A1/en
Application filed by Robert Bosch GmbH filed Critical Robert Bosch GmbH
Priority to PCT/DE2002/000295 priority patent/WO2002061269A1/en
Publication of EP1358402A1 publication Critical patent/EP1358402A1/en
Application granted granted Critical
Publication of EP1358402B1 publication Critical patent/EP1358402B1/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02MSUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M51/00Fuel-injection apparatus characterised by being operated electrically
    • F02M51/06Injectors peculiar thereto with means directly operating the valve needle
    • F02M51/061Injectors peculiar thereto with means directly operating the valve needle using electromagnetic operating means
    • F02M51/0625Injectors peculiar thereto with means directly operating the valve needle using electromagnetic operating means characterised by arrangement of mobile armatures
    • F02M51/0664Injectors 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
    • F02M51/0671Injectors 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
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02MSUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M61/00Fuel-injectors not provided for in groups F02M39/00 - F02M57/00 or F02M67/00
    • F02M61/16Details not provided for in, or of interest apart from, the apparatus of groups F02M61/02 - F02M61/14
    • F02M61/168Assembling; Disassembling; Manufacturing; Adjusting
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02MSUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M2200/00Details of fuel-injection apparatus, not otherwise provided for
    • F02M2200/16Sealing of fuel injection apparatus not otherwise provided for
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02MSUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M2200/00Details of fuel-injection apparatus, not otherwise provided for
    • F02M2200/80Fuel injection apparatus manufacture, repair or assembly
    • F02M2200/8061Fuel injection apparatus manufacture, repair or assembly involving press-fit, i.e. interference or friction fit

Abstract

The invention relates to a fuel injection valve for fuel injection systems of internal combustion engines, comprising a nozzle body (2) at whose downstream end at least one injection opening (7) is disposed and on which a sealing element is disposed that seals the valve from an adjoining component (32). At least one peripheral sealing collar (31) is provided on the nozzle body (2) as the sealing element and interacts with the adjoining component (32) to give a press fit.

Description


  



   The invention is based on a fuel injector according to the type of the main claim.



  A fuel injector, which has a tubular nozzle body on its downstream side, at whose downstream end a sealing seat and a spray opening are arranged, for. B. known from DE 198 49 210 A1. The tubular part of the nozzle body can be inserted into a receiving bore in a cylinder head. Compared to the receiving bore of the cylinder head, which has a diameter corresponding to the radial extent of the nozzle body, the nozzle body is sealed with a seal which approximately has the geometry of a hollow cylinder.



  To fix the position of the seal on the nozzle body, the nozzle body has a circumferential groove which is introduced, for example, by turning off the nozzle body and into which the seal is inserted. Elastic materials can be used as materials that are suitable for mounting in the groove. Let it slide over the nozzle body.



  Another fuel injection valve, in which a sealing element is arranged on the nozzle body, is known from DE 198 08 068 A1. The seal is made of a metallic material and expands in the radial direction under the influence of the temperature caused by the combustion process. This can be done either through a shape memory alloy or through the use of a bimetal seal. As in DE 198 49 210 A1, a groove can be used in the nozzle body for fixing.



  When the internal combustion engine is operating, the metal sealing ring heats up and expands. This increases the sealing effect during operation. For easier assembly, the metal gasket has a slightly smaller diameter than the location hole for the fuel injector, which is made in the cylinder head.



  A disadvantage of the sealing solution specified in DE 198 49 210 AI is the high temperature acting on the seal. In particular with direct-injection internal combustion engines, full gas resistance of non-metallic sealing materials cannot be ensured.



  The solution disclosed in DE 198 08 068 A1 has the disadvantage that the sealing effect of the metallic seal is temperature-dependent. After a cold start of the internal combustion engine, it takes until the materials in the vicinity of the combustion chamber have warmed up as a result of the combustion process until the temperature in the seal has been reached by the heat conduction, which leads to the required change in shape. Therefore, in addition to the seal presented, a further seal is required in order to seal the combustion chamber against the outside space when the internal combustion engine starts to operate, so that no compression pressure is lost.



  Another disadvantage is the complex materials that are used in the production of temperature-dependent deforming metal seals. A shape memory alloy has a transition temperature that is matched to the intended use. In order to be able to guarantee this transition temperature safely, a narrow scope is usually required with regard to the manufacturing process. This increases not only the development costs for the alloy but also the costs when used in series production.



  The use of a bimetal seal requires the seal to be fixed to the nozzle body, which serves as a counter bearing during the deformation. However, assembly of the bimetal in a groove, for example, is difficult since the properties of the material change when one of the two metals experiences a non-elastic deformation during assembly.



  Advantages of the invention In contrast, the fuel injector according to the invention with the characterizing feature of the main claim has the advantage that only a modified geometry of the nozzle body is required for sealing. Due to the one-piece design of the sealing beads with the nozzle body, the seal only requires a sealing function with respect to the adjacent component. This means that no materials are used in the immediate vicinity of the combustion chamber that can be damaged due to the temperatures that occur. The purely metallic seal is part of an already used component, which is why no additional corrosion protection z. B. due to possible contact corrosion.



  The one-piece design reduces the manufacturing effort of the fuel injector and also ensures low reject rates, since an assembly step can be omitted. Advantageous developments of the fuel injector according to the invention are possible in accordance with the measures listed in the subclaims.



  The successive arrangement of several sealing beads is particularly advantageous with regard to the reliability of the sealing effect. The identical geometry of the individual extensions simplifies production, which means that tool costs can be reduced.



  It is also advantageous that an increase in the number of sealing elements does not lead to an increase in the components of the fuel injector. The sealing beads can be worked out in different numbers from the same raw shape of the nozzle body.



  The use of an adapter sleeve as an adjacent component makes it possible to move the seal of the unit consisting of the fuel injector and adapter sleeve relative to the cylinder head to a location that is less critical in terms of temperature.



  DRAWING An exemplary embodiment of a fuel injector according to the invention is shown in simplified form in the drawing and is explained in more detail in the following description. 1 shows a schematic partial section through
Embodiment of an inventive
Fuel injector; and FIG. 2 shows a schematic section in section II of FIG
Fig. 1 by the inventive
Fuel injector.



  DESCRIPTION OF THE EXEMPLARY EMBODIMENT With reference to FIG. 1, an exemplary embodiment of a fuel injector 1 according to the invention is first briefly explained in an overall representation with regard to its essential components for a better understanding of the invention.



  The fuel injection valve 1 is designed in the form of a fuel injection valve 1 for fuel injection systems of mixture-compressing, spark-ignited internal combustion engines. The fuel injection valve 1 is particularly suitable for injecting fuel directly into a combustion chamber (not shown) of an internal combustion engine.



  The fuel injection valve 1 comprises a nozzle body 2, in which a valve needle 3 is arranged. The valve needle 3 is operatively connected to a valve closing body 4, which cooperates with a valve seat surface 6 arranged in a valve seat body 5 to form a sealing seat. In the exemplary embodiment, fuel injector 1 is an electromagnetically actuated fuel injector 1, which has a spray opening 7. The nozzle body 2 is sealed by a seal 8 against an outer pole 9 of a solenoid 10. The magnet coil 10 is encapsulated in a coil housing 11 and wound on a coil carrier 12, which bears against an inner pole 13 of the magnet coil 10.

   The inner pole 13 and the outer pole 9 are separated from one another by a gap 26 and are supported on a connecting component 29. The magnet coil 10 is excited via a line 19 by an electrical current that can be supplied via an electrical plug contact 17. The plug contact 17 is surrounded by a plastic sheath 18, which can be molded onto the inner pole 13.



  The valve needle 3 is guided in a disk-shaped valve needle guide 14. This is paired with a shim 15, which is used to adjust the valve needle stroke. An armature 20 is located on the upstream side of the adjusting disk 15. This anchor is non-positively connected via a flange 21 to the valve needle 3, which is connected to the flange 21 by a weld seam 22. A restoring spring 23 is supported on the flange 21, which in the present design of the fuel injection valve 1 is preloaded by a sleeve 24 pressed into the inner pole 13.



  Fuel channels 30a to 30c run in the valve needle guide 14, in the armature 20 and in a guide disk 31.



  A filter element 25 is arranged in a central fuel feed 16. The fuel injection valve 1 is sealed by a seal 28 against a fuel line, not shown.



  In the idle state of the fuel injection valve 1, the armature 20 is acted upon by the return spring 23 against the stroke direction via the flange 21 on the valve needle 3 in such a way that the valve closing body 4 is held in sealing contact with the valve seat surface 6. When the magnet coil 10 is excited, it builds up a magnetic field which moves the armature 20 against the spring force of the return spring 23 in the stroke direction, the stroke being predetermined by a working gap 27 which is in the rest position between the inner pole 13 and the armature 20. The armature 20 takes the flange 21, which is welded to the valve needle 3, and thus also the valve needle 3 in the lifting direction. The valve closing body 4 lifts off the valve seat surface 6 and the fuel is sprayed off from the spray opening 7.



  If the coil current is switched off, the armature 20 drops from the inner pole 13 after the magnetic field has been sufficiently reduced by the pressure of the return spring 23 on the flange 21, as a result of which the valve needle 3 moves counter to the stroke direction. As a result, the valve closing body 4 rests on the valve seat surface 6, and the fuel injection valve 1 is closed. The fuel injection valve 1 according to the invention is sealed off from an adapter sleeve 32 by at least one sealing bead 31, which is arranged as a radial extension on the nozzle body 2. Instead of the adapter sleeve 32 shown in the exemplary embodiment, any adjacent component can be used.

   The adapter sleeve 32 makes it possible to install fuel injection valves 1 in a cylinder head, which would require changes in the external dimensions of the fuel injection valve 1. The adapter sleeve 32 has a tubular part 35 at its downstream end, the inner radial extent of the tubular part 35 corresponding to the outer radial extent of the nozzle body 2. The tubular part 35 has a cylindrical inner contour. The adapter sleeve 32 is sealed against the cylinder head in a manner not shown.



  The length of the tubular part 35 of the adapter sleeve 32 is at least so great that all the sealing beads 31 provided for sealing the nozzle body 2 together have a smaller extent in the axial direction than the tubular part 35 of the adapter sleeve 32 and are thus arranged within the tubular part 35. The sealing beads 31, which are arranged circumferentially as radially widened areas around the cylindrical nozzle body 2, have an outer radial extent which is somewhat greater than the inner radial extent of the tubular part 35 of the adapter sleeve 32. The nozzle body 2 becomes the adapter sleeve 32 used, there is a press connection between the nozzle body 2 and the adapter sleeve 32, through which the sealing function is performed.

   Since the adapter sleeve 32 is in turn sealed against the cylinder head in a manner not shown, it is not possible for the pressure in the combustion chamber, not shown, to escape into the environment.



  The nozzle body 2 is cylindrical, its outer radial expansion, in particular downstream of the sealing beads 31, being somewhat smaller than the outer radial expansion of the sealing beads 31. The contact area between the nozzle body 2 and the adapter sleeve 32 is thereby limited to the sealing beads 31. The surface pressure resulting from the press connection and the small contact area ensures the sealing effect. The sealing beads 31 arranged in succession in the axial direction have identical cross sections.



  Instead of the adapter sleeve 32, the fuel injection valve 1 can also be mounted directly in a cylinder head of a direct-injection internal combustion engine. For this purpose, the cylinder head has a receiving recess for the fuel injection valve 1, which corresponds at least in a partial area to the geometry of the adapter sleeve 32, so that in the installed position of the fuel injection valve 1, the sealing beads 31 of the nozzle body 2 seal the fuel injection valve 1 against the receiving recess of the cylinder head. As an alternative to the geometry of the individual sealing beads 31 which is identical in the exemplary embodiment shown, the sealing beads 31 can also be formed with different cross sections.



  2, the sealing section of the nozzle body 2 from FIG. 1 is shown enlarged. The sealing beads 31 form the only contact surfaces of the nozzle body 2 with the adapter sleeve 31 and thus generate the sealing surface pressure. An air gap 34 is formed upstream and downstream of the sealing beads 31 due to the smaller radial expansion of the nozzle body 2 compared to the inner radial expansion of the adapter sleeve 32.



  The outer radii 33 of the sealing beads 31 in the area of the contact surface with the adapter sleeve 32 are chosen to be so large that no chips can be scraped off the adapter sleeve 32 during assembly. Chip-free assembly is particularly important for direct installation in a cylinder head, as the metal chips would fall directly into the combustion chamber.

Claims

 1. Fuel injection valve for fuel injection systems of internal combustion engines with a nozzle body (2), at the downstream end of which at least one spray opening (7) is arranged and on which a sealing element is arranged for sealing against an adjacent component (32), characterized in that the The nozzle body (2) has at least one circumferential sealing bead (31) as a sealing element, which forms an interference fit with an adjacent component (32).
2. Fuel injection valve according to claim 1, characterized in that a plurality of sealing beads (31) are arranged in succession on the nozzle body (2) in the axial direction.
3. Fuel injection valve according to claim 1 or 2, characterized in that the sealing beads (31) have an identical geometry.
4. Fuel injection valve according to one of claims 1 to 3, characterized in that the nozzle body (2) is cylindrical at least in the region of the sealing beads (31) up to its downstream end.
5. Fuel injection valve according to one of claims 1 to 4, characterized in that the fuel injection valve (1) with the downstream end of the nozzle body (2) in the adjacent component (32) can be inserted.
6. Fuel injection valve according to one of claims 1 to 5, characterized in that the adjacent component (32) is an adapter sleeve (32) which can be pushed onto the fuel injection valve (1).
EP20020704617 2001-01-30 2002-01-28 Fuel injection valve Expired - Fee Related EP1358402B1 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
DE10103933 2001-01-30
DE2001103933 DE10103933A1 (en) 2001-01-30 2001-01-30 Fuel injector
PCT/DE2002/000295 WO2002061269A1 (en) 2001-01-30 2002-01-28 Fuel injection valve

Publications (2)

Publication Number Publication Date
EP1358402A1 true EP1358402A1 (en) 2003-11-05
EP1358402B1 EP1358402B1 (en) 2006-04-26

Family

ID=7672094

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20020704617 Expired - Fee Related EP1358402B1 (en) 2001-01-30 2002-01-28 Fuel injection valve

Country Status (5)

Country Link
US (1) US6988681B2 (en)
EP (1) EP1358402B1 (en)
JP (1) JP2004518066A (en)
DE (2) DE10103933A1 (en)
WO (1) WO2002061269A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9822749B2 (en) 2011-12-20 2017-11-21 Robert Bosch Gmbh Fuel injector

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102004056424B4 (en) * 2004-11-23 2016-12-29 Robert Bosch Gmbh Fuel injection valve and method for structuring a magnetic pole piece
US20060163818A1 (en) * 2005-01-24 2006-07-27 Breen Bryan S Shaft seal with memory metal retainer spring
DE102007008863A1 (en) * 2005-08-26 2008-08-28 Robert Bosch Gmbh Fuel injector
DE102005040363B4 (en) * 2005-08-26 2017-09-14 Robert Bosch Gmbh Fuel injector
DE102006049532A1 (en) * 2006-10-20 2008-04-24 Robert Bosch Gmbh Screw connection for fuel injector
US8025346B2 (en) 2006-12-15 2011-09-27 Caterpillar Inc. Machine component configuration for enhanced press fit and press fit coupling method
EP2014885B1 (en) * 2007-07-09 2010-11-17 Delphi Technologies Holding S.à.r.l. A reagent dosing system
JP4420102B2 (en) * 2007-10-30 2010-02-24 株式会社デンソー injector
DE602008003515D1 (en) 2008-01-18 2010-12-30 Continental Automotive Gmbh Valve arrangement for an injection valve and injection valve
US7942132B2 (en) * 2008-07-17 2011-05-17 Robert Bosch Gmbh In-line noise filtering device for fuel system
US8220843B2 (en) * 2008-07-30 2012-07-17 Parker-Hannifin Corporation Sealing joint for connecting adjoining duct pieces in an engine exhaust system
US7886718B2 (en) * 2008-09-26 2011-02-15 Caterpillar Inc. Fuel injector having integral body guide and nozzle case for pressure containment
US8973895B2 (en) 2010-02-10 2015-03-10 Tenneco Automotive Operating Company Inc. Electromagnetically controlled injector having flux bridge and flux break
KR101767284B1 (en) * 2010-02-10 2017-08-23 테네코 오토모티브 오퍼레이팅 컴파니 인코포레이티드 Pressure swirl flow injector with reduced flow variability and return flow
US9683472B2 (en) 2010-02-10 2017-06-20 Tenneco Automotive Operating Company Inc. Electromagnetically controlled injector having flux bridge and flux break
US8740113B2 (en) * 2010-02-10 2014-06-03 Tenneco Automotive Operating Company, Inc. Pressure swirl flow injector with reduced flow variability and return flow
US8978364B2 (en) 2012-05-07 2015-03-17 Tenneco Automotive Operating Company Inc. Reagent injector
US8910884B2 (en) 2012-05-10 2014-12-16 Tenneco Automotive Operating Company Inc. Coaxial flow injector

Family Cites Families (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1802538A (en) 1927-08-11 1931-04-28 Albert J Weatherhead Jr Tubular connection
DE2349584C2 (en) * 1973-10-03 1984-08-23 Robert Bosch Gmbh, 7000 Stuttgart, De
DE2458728A1 (en) * 1974-12-12 1976-06-24 Bosch Gmbh Robert Electromagnetically actuated injection valve
DE3000061C2 (en) * 1980-01-03 1993-10-14 Bosch Gmbh Robert Fuel injection nozzle for internal combustion engines
US4938193A (en) 1987-06-15 1990-07-03 Stanadyne Automotive Corp. Fuel injection nozzle
DE3907979C2 (en) * 1989-03-11 2000-03-23 Teves Gmbh Alfred Window cleaning system
US5191867A (en) 1991-10-11 1993-03-09 Caterpillar Inc. Hydraulically-actuated electronically-controlled unit injector fuel system having variable control of actuating fluid pressure
US5301877A (en) * 1992-03-26 1994-04-12 R L Corporation Lawn and garden sprayer with press-fit nozzle construction
US5247918A (en) * 1992-09-17 1993-09-28 Siemens Automotive L.P. Sealing a direct injection fuel injector to a combustion chamber
US5345913A (en) * 1993-11-24 1994-09-13 Caterpillar Inc. Injector assembly
US5419297A (en) * 1994-06-28 1995-05-30 Siemens Automotive L.P. Extended tip gasoline port fuel injector
DE19808068A1 (en) 1998-02-26 1999-09-02 Bosch Gmbh Robert Fuel injector
DE19838755B4 (en) * 1998-08-26 2006-11-09 Daimlerchrysler Ag On the combustion chamber of an internal combustion engine injecting fuel injection nozzle
DE19841155C1 (en) * 1998-09-09 2000-01-05 Mertik Maxitrol Gmbh & Co Kg Gas tight pipe coupling
DE19849210A1 (en) 1998-10-26 2000-04-27 Bosch Gmbh Robert Fuel injection valve for internal combustion engine fuel injection system has armature movable between two stops, damping spring arranged between second stop and armature
DE19900405A1 (en) * 1999-01-08 2000-07-13 Bosch Gmbh Robert Method of assembling a valve assembly of a fuel injector
DE29909564U1 (en) 1999-06-01 2000-10-05 Bosch Gmbh Robert Filter insert for cleaning fuel
DE19927898A1 (en) * 1999-06-18 2000-12-21 Bosch Gmbh Robert Fuel injection valve comprises a layer of material which is located on the outer surface of the valve body and ensures a hydraulically tight joint between the valve seat body and its carrier structure

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO02061269A1 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9822749B2 (en) 2011-12-20 2017-11-21 Robert Bosch Gmbh Fuel injector

Also Published As

Publication number Publication date
EP1358402B1 (en) 2006-04-26
WO2002061269A1 (en) 2002-08-08
DE50206561D1 (en) 2006-06-01
JP2004518066A (en) 2004-06-17
US20030164411A1 (en) 2003-09-04
US6988681B2 (en) 2006-01-24
DE10103933A1 (en) 2002-08-14

Similar Documents

Publication Publication Date Title
EP0497931B1 (en) Fuel-injection valve and process for its manufacture
US5236174A (en) Electromagnetically operable valve
US5275341A (en) Electromagnetically operated valve
US7481378B2 (en) Polymeric bodied fuel injector
US7770823B2 (en) Fuel injector and its stroke adjustment method
EP1474603B1 (en) Fuel-injection valve
US6039271A (en) Fuel injection valve
US6615802B2 (en) Fuel injection valve
JP3033499B2 (en) Cylinder head sealing device
DE19616806B4 (en) Fuel injection valve for internal combustion engines
KR100442899B1 (en) Fuel injection valve
JP4358744B2 (en) Fuel metering unit for a fuel injection device of an internal combustion engine
EP1364117B1 (en) Fuel injection valve
JP4589387B2 (en) Injection valve for fuel injection
US7017885B2 (en) Solenoid valve
CN101865060B (en) Fuel injection valve
JP4008875B2 (en) Fuel injection valve
US7267111B2 (en) Fuel injector
US20040135014A1 (en) Electromagnetic fuel injection valve
EP1389276B1 (en) Directly actuated injection valve with a composite needle
EP2182199B1 (en) Electromagnetically-driven valve mechanism and high-pressure fuel supply pump using the same
US5954343A (en) Seal ring
EP1170501B1 (en) Electromagnetic fuel injection valve
US6019128A (en) Fuel injection valve
US7229064B2 (en) Valve for controlling a fluid

Legal Events

Date Code Title Description
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: 20030901

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): DE FR GB IT

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

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;WARNING: LAPSES OF ITALIAN PATENTS WITH EFFECTIVE DATE BEFORE 2007 MAY HAVE OCCURRED AT ANY TIME BEFORE 2007. THE CORRECT EFFECTIVE DATE MAY BE DIFFERENT FROM THE ONE RECORDED.

Effective date: 20060426

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: 50206561

Country of ref document: DE

Date of ref document: 20060601

Kind code of ref document: P

GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)

Effective date: 20060822

ET Fr: translation filed
PGFP Annual fee paid to national office [announced from national office to epo]

Ref country code: GB

Payment date: 20070123

Year of fee payment: 6

26N No opposition filed

Effective date: 20070129

PGFP Annual fee paid to national office [announced from national office to epo]

Ref country code: FR

Payment date: 20070118

Year of fee payment: 6

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20080128

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

Effective date: 20081029

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: 20080128

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: 20080131

PGFP Annual fee paid to national office [announced from national office to epo]

Ref country code: DE

Payment date: 20110321

Year of fee payment: 10

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: 20120801

REG Reference to a national code

Ref country code: DE

Ref legal event code: R119

Ref document number: 50206561

Country of ref document: DE

Effective date: 20120801