EP0781917A1 - Ventilsitzhalterung eines Brennstoffeinspritzventils - Google Patents

Ventilsitzhalterung eines Brennstoffeinspritzventils Download PDF

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Publication number
EP0781917A1
EP0781917A1 EP96203325A EP96203325A EP0781917A1 EP 0781917 A1 EP0781917 A1 EP 0781917A1 EP 96203325 A EP96203325 A EP 96203325A EP 96203325 A EP96203325 A EP 96203325A EP 0781917 A1 EP0781917 A1 EP 0781917A1
Authority
EP
European Patent Office
Prior art keywords
fuel
nozzle body
injector
fuel passage
retaining ring
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.)
Withdrawn
Application number
EP96203325A
Other languages
English (en)
French (fr)
Inventor
Harrie William Ii Bonnah
John David Vanderhenst
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.)
Motors Liquidation Co
Original Assignee
Motors Liquidation Co
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
Application filed by Motors Liquidation Co filed Critical Motors Liquidation Co
Publication of EP0781917A1 publication Critical patent/EP0781917A1/de
Withdrawn legal-status Critical Current

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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
    • F02M51/061—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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M61/00—Fuel-injectors not provided for in groups F02M39/00 - F02M57/00 or F02M67/00
    • F02M61/16—Details not provided for in, or of interest apart from, the apparatus of groups F02M61/02 - F02M61/14
    • F02M61/161—Means for adjusting injection-valve lift
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M61/00—Fuel-injectors not provided for in groups F02M39/00 - F02M57/00 or F02M67/00
    • F02M61/16—Details not provided for in, or of interest apart from, the apparatus of groups F02M61/02 - F02M61/14
    • F02M61/168—Assembling; Disassembling; Manufacturing; Adjusting
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M61/00—Fuel-injectors not provided for in groups F02M39/00 - F02M57/00 or F02M67/00
    • F02M61/16—Details not provided for in, or of interest apart from, the apparatus of groups F02M61/02 - F02M61/14
    • F02M61/18—Injection nozzles, e.g. having valve seats; Details of valve member seated ends, not otherwise provided for
    • F02M61/1853—Orifice plates

Definitions

  • the present invention relates to fuel injectors for delivery of fuel to the intake system of an internal combustion engine.
  • Electromagnetic fuel injectors used in internal combustion engines are capable of effectively controlling the discharge of a precise metered quantity of fuel per unit time to the engine intake. Proper metering and atomization of fuel discharged from the injector is desirable for a homogeneous fuel/air mixture. Of paramount importance in the preparation of fuel spray is the configuration and adjustment of the injector valve and valve seat as well as the design of the fuel director and surfaces surrounding the discharge end of the fuel injector.
  • Adjustment and retention of the valve seat nozzle within the fuel injector body is commonly through cooperating threaded surfaces on the two components.
  • the threads allow for axial positioning of the valve seat relative to the valve assembly thereby defining the axial travel of the armature/valve.
  • the threaded surfaces axially fix the valve seat within the nozzle body.
  • a fuel injector for use in an internal combustion engine, having a valve seat assembly, or nozzle body, which is located within an associated fuel injector body using a locating feature operable to frictionally position the valve seat within the nozzle.
  • An embodiment of the invention provides such a valve seat locator which permits adjustment of the valve seat following assembly. Such adjustment is achieved by exceeding the frictional forces which function to position the valve seat in the injector body and allows movement of the valve seat in one or both directions along the valve axis.
  • valve seat positioner of the present invention may be the reduction in surface area surrounding the discharge end of the nozzle. Such reduction in area can be achieved through location of the retainer ring in an axial, annular recess in the valve seat body to reduce the incidence of injector tip surface wetting which may adversely impact cylinder fueling.
  • a further feature and advantage of the retaining ring for injector valve seats, of the present invention may be the flexibility in material choice in constructing the ring. Permanent fixing of the valve seat nozzle within the fuel injector body may be through welding of the nozzle body to the retaining ring and the retaining ring to the injector body. Through selection and matching of the material properties of the retaining ring to those of the nozzle and the injector body, the weld characteristics at the junction may be maximized.
  • an electromagnetic fuel injector designated generally as 10 includes, as major components thereof, a body 12, a nozzle assembly 14, a valve member 16 and a solenoid actuator assembly 18 used to control the movement of the valve member 16.
  • the injector body 12 is of cylindrical, hollow tubular configuration and is of such external shape as to permit direct insertion, if desired, of the injector 10 into a socket provided for this purpose in an engine intake manifold, not shown.
  • the body 12 includes an enlarged upper solenoid case portion 20 and a lower end, nozzle case portion 22 of reduced internal and external diameter relative to the solenoid portion 20.
  • An internal cylindrical cavity 24 is formed in the body 12 by a stepped bore therethrough that is substantially coaxial with the axis 26 of the body.
  • the cavity 24 includes a cylindrical upper wall 28, a cylindrical intermediate wall 30 and a cylindrical lower wall 32.
  • Wall 30 is of a reduced diameter relative to upper and lower wall portions 28 and 32, respectively.
  • Solenoid assembly 18 is disposed within the enlarged upper solenoid case portion 20 and includes a spool-like, tubular bobbin 34 supporting a wound wire solenoid coil 36.
  • a resilient sealing member such as o-ring 40 is disposed between the tubular bobbin 34 and a seal shoulder 44.
  • the bobbin 34 is provided with a central through bore 46 configured to encircle the lower, reduced diameter portion 48 of pole piece 50.
  • a pair of terminal leads 52 are operatively connected at one end to the solenoid coil 36 and each such lead has its second end extending upwardly through an outer, overmolded casing 54 to terminate in a terminal socket 56, for connection of the fuel injector to a suitable source of electrical power in a manner well known in the art.
  • Pole piece 50 includes an upper cylindrical portion 58, a centrally located flange portion 60 and the lower reduced diameter cylindrical pole 48.
  • the circular, radial flange portion 60 is slidably received at its outer peripheral edge within the cylindrical upper wall 28 of the body 12 to thereby close the enlarged upper solenoid case portion 20 of the body 12 and retain the solenoid assembly 18 therein.
  • the pole piece 50 is axially retained within the upper cylindrical portion of the body 12 as by having its flange portion welded or otherwise suitably bonded to the shoulder 62 along the upper, opened end of wall 28.
  • Pole 48 is of a suitable exterior diameter so as to be slidably received in the central through bore 46 that extends coaxially through the coil bobbin 34.
  • Received about the lower end of the lower cylindrical pole 48 of the pole piece 50 is a cylindrical tube 64 of non-magnetic material such as stamped or drawn metal.
  • the tube 64 extends axially downwardly beyond the lower end 66 of the lower cylindrical pole 48.
  • the outer surface of the extended portion of the tube 64 acts as an interface with resilient sealing member 40 seated between the lower end of the coil bobbin extension 42 and seal shoulder 44 of the body 12, thereby operating to seal the central, fuel passage 70 of the fuel injector 10 from solenoid coil 36.
  • the pole piece 50 is provided with a boss 58 which is configured to receive fuel inlet tube 74.
  • the fuel inlet tube 74 is encapsulated within overmolded upper housing 54 which is formed of a suitable encapsulant material.
  • An upper seal shoulder 86 formed in the overmolded housing 54 is axially spaced from the tube flange 78 to define an annular seal groove 88 configured to carry a resilient sealing member such as o-ring 90 for leak free attachment to a source of pressurized fuel, not shown.
  • the nozzle assembly 14 includes a nozzle body 98 having a cup-shaped tubular configuration with an inner wall 100 defining a fuel cavity 102.
  • the fuel cavity includes an axially aligned fuel discharge opening 104 surrounded by a frustoconical valve seat 106.
  • a cylindrical outer wall 108 further defines the nozzle assembly 14 and is configured for sliding disposition within the cylindrical lower wall 32 of the nozzle case portion 22 of injector body 12.
  • a circumferentially extending annular groove 110 is disposed in the cylindrical outer wall 108 adjacent the end of the nozzle body 98 and is configured to receive a resilient sealing member such as o-ring 112.
  • the o-ring 112 establishes a seal against leakage out of the injector 10 by interfacing with the cylindrical lower wall 32 of the injector body 12.
  • a circumferentially extending shoulder 114 is disposed in the downstream, outer surface 108 of the nozzle body 98.
  • the cylindrical lower wall 32 and the shoulder 114 of the nozzle body cooperate to define a groove 116 in which is disposed an outwardly biased, circular retaining ring 118.
  • the retaining ring 118 is operable to exert a radially outwardly directed force "F" on the cylindrical lower wall 32 of the nozzle body 98 which, in turn, establishes a frictional resistance to axial movement of the ring and associated nozzle body within the lower case portion of the nozzle body 12.
  • the ring 118 is defined by non-uniform cross-section.
  • the use of a ring 118 having such non-uniform cross-section allows for a uniform, radially outwardly directed force to be imparted by the retaining ring on the cylindrical wall 32 as compression of a ring having such a cross-section is known to impart a more uniform force component about its circumference than one having a uniform cross section.
  • the director plate 122 is a flat plate member formed of thin sheet stock and having fuel directing openings 124 extending from the upstream side 126 to the downstream side 128. Fuel passing through the fuel discharge opening 104 in the valve seat 106 is delivered to the upstream side, or face 126 of the director plate 122 where it is distributed across the face to the fuel openings 124.
  • the openings 124 are oriented in a predetermined configuration which will generate, in the discharged fuel, a desired spray configuration.
  • the ring is recessed relative to the lower surface 122 of the nozzle body 98 to limit the surface area which is exposed to the spray departing the openings 124 in the director plate 122.
  • Such reduction in downstream surface area is desirable in that it reduces the incidence of fuel impingement on such surfaces and wetting of those surfaces which may adversely affect the performance of the fuel system.
  • Assembly and calibration of the fuel injector 10 may require axial translation of the nozzle body 98 to set the stroke of the valve member 16.
  • the use of the retaining ring 118 adjacent the downstream end of the nozzle body 98 allows the injector 10 to be assembled and the nozzle body to be axially adjusted during calibration through imposition of an axial force component which is sufficient to overcome the frictional resistance to movement established by the radially outwardly exerted force "F" of the ring 118 on the inner cylindrical wall 32.
  • the ring 118 allows infinite adjustment of the valve stroke which would not be possible if the ring were required to seat in a groove in the lower cylindrical wall 32.
  • Figures 6 and 7 illustrate one alternate embodiment in which a non-uniform outer circumferential surface 130 may be utilized to increase frictional resistance to axial movement of the retainer and associated nozzle body.
  • the outwardly extending protrusions 132 of the ring member 118' significantly increase resistance to movement, through deformation as illustrated in Figure 7 or through concentrated force component "F 1 ", and may provide a retainer ring which is limited to a single direction of axial adjustment.
  • the nozzle body may be permanently fixed in position within the injector body 12 by welding the nozzle body 98 to the retaining ring 118 and the retaining ring to the injector body 12, effectively using the retaining ring as weld stock.
  • the advantage of the retaining ring 118 in this respect is that its material properties may be chosen to maximize the weld quality between the nozzle body 98 and the injector body 12 which is typically not a possibility when the two injector components are directly welded.
  • valve member 16 it includes a tubular armature 146 and a valve element 148, the latter being made of, for example, a spherical ball having a predetermined radius, which is welded to the lower annular end 150 of the tubular armature 146.
  • the radius of the valve element 148 is chosen for seating engagement with the valve seat 106.
  • the tubular armature 146 is formed with a predetermined outside diameter so as to be slidable within the central aperture portion 156 defined by the non-magnetic cylindrical tube 64 received about and extending from the lower pole piece 48.
  • annular valve guide 164 Positioned within the cylindrical cavity 102 of the nozzle body 98, adjacent the valve seat 116, is an annular valve guide 164 which extends about the valve ball member 148 and is operable to guide the member as it moves reciprocally into and out of engagement with the valve seat 106.
  • valve member element 148 of valve member 16 is normally biased into a closed, seated engagement with the valve seat 116 by a biasing member such as valve return spring 170 of predetermined spring force which is inserted into the tubular armature 146.
  • a calibration sleeve 178 adjusts the spring preload exerted on the valve member 16 in the direction of the valve seat 106.
  • a working air gap 184 is defined between the working surface 186 at the upper end of armature tube 146 of the valve member 16 and the working surface 66 at the lower end of the pole piece 50.
  • the tubular armature 146 and associated valve element 148 is drawn upwardly and off of the valve seat 106 against the bias of the spring member 170 to close the working air gap 184.
  • Fuel flows from the pressurized source into the first, inlet end 76 of injector 10, and enters the body 12 through the pole piece 50.
  • Fuel flows through the tubular armature 146 and into the fuel chamber 112 in nozzle body 98 through circumferentially spaced openings 192 in the second end of the armature tube 146.
  • Fuel exiting the valve seat 106 is distributed onto the upstream side 126 of the fuel director plate 122 where it is distributed to the fuel director orifices 124 passing through the plate, for discharge from the fuel injector 10.
  • Deenergization of the solenoid assembly 18 allows the field within the magnetic circuit defined by the pole piece 50, the body 12, and the armature 146 to collapse thereby allowing the valve member to return to the closed position against the valve seat 106 under the bias of the spring member 170 to stop the flow of fuel therethrough.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Manufacturing & Machinery (AREA)
  • Fuel-Injection Apparatus (AREA)
EP96203325A 1995-12-26 1996-11-26 Ventilsitzhalterung eines Brennstoffeinspritzventils Withdrawn EP0781917A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US57885095A 1995-12-26 1995-12-26
US578850 1995-12-26

Publications (1)

Publication Number Publication Date
EP0781917A1 true EP0781917A1 (de) 1997-07-02

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Family Applications (1)

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EP96203325A Withdrawn EP0781917A1 (de) 1995-12-26 1996-11-26 Ventilsitzhalterung eines Brennstoffeinspritzventils

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Cited By (36)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999040315A1 (en) * 1998-02-05 1999-08-12 Siemens Automotive Corporation Non-magnetic shell for welded fuel injector
WO2001007780A1 (de) * 1999-07-27 2001-02-01 Robert Bosch Gmbh Brennstoffeinspritzventil
EP1219822A1 (de) * 2000-12-29 2002-07-03 Siemens VDO Automotive Corporation Brennstoffeinspritzventil und sein Zusammenbau
EP1219816A1 (de) * 2000-12-29 2002-07-03 Siemens Automotive Corporation Modulares Brennstoffeinspritzventil mit austauschbarem Anker und mit einer den Hub einstellenden Hülse
EP1219825A1 (de) * 2000-12-29 2002-07-03 Siemens VDO Automotive Corporation Modulares Brennstoffeinspritzventil mit einer Oberflächenbehandlung einer Stossoberfläche eines elektromagnetischen Aktuators, einem integrierten Filter und einer Justiereinrichtung
EP1219821A1 (de) * 2000-12-29 2002-07-03 Siemens VDO Automotive Corporation Modulares Brennstoffeinspritzventil mit einem integrierten oder austauschbaren Einlassrohr, einem integrierten Filter und einer Justiereinrichtung
EP1219819A1 (de) * 2000-12-29 2002-07-03 Siemens Automotive Corporation Modulares Kraftstoffeinspritzventil mit elektromagnetischer Betätigungsvorrichtung und einer den Hub einstellenden Hülse
EP1219820A1 (de) * 2000-12-29 2002-07-03 Siemens Automotive Corporation Modulares Einspritzventil und sein Zusammenbau
EP1219814A1 (de) * 2000-12-29 2002-07-03 Siemens VDO Automotive Corporation Modulares Brennstoffeinspritzventil mit einem integrierten Filter und einer Justiereinrichtung
EP1219817A1 (de) * 2000-12-29 2002-07-03 Siemens Automotive Corporation Modulares Kraftstoffeinspritzventil mit einem Endverbinder zum Verbinden einer elektromagnetischen Betätigungsvorrichtung mit einer vorgebogenen elektrischen Klemme
EP1219815A1 (de) * 2000-12-29 2002-07-03 Siemens Automotive Corporation Modulares Brennstoffeinspritzventil mit einer den Hub einstellenden Hülse
EP1219818A1 (de) * 2000-12-29 2002-07-03 Siemens Automotive Corporation Modulares Kraftstoffeinspritzventil mit einer elektromagnetischen Betätigungsvorrichtung und einem Endverbinder zum Verbinden der Betätigungsvorrichtung mit einem elektrischen Anschluss
EP1221550A1 (de) * 2000-12-29 2002-07-10 Siemens Automotive Corporation Modulares Brennstoffeinspritzventil mit einer elektromagnetischen Betätigungseinrichtung, einem integrierten Filter und einer Justiereinrichtung
EP1245827A1 (de) * 2001-03-30 2002-10-02 Siemens VDO Automotive Corporation Verfahren zur Einstellung des Ankerhubs in einem modularen Brennstoffeinspritzventils
WO2002079636A1 (de) * 2001-03-29 2002-10-10 Robert Bosch Gmbh Einspritzventil
US6502770B2 (en) 2000-12-29 2003-01-07 Siemens Automotive Corporation Modular fuel injector having a snap-on orifice disk retainer and having a terminal connector interconnecting an electromagnetic actuator with an electrical terminal
US6508417B2 (en) 2000-12-29 2003-01-21 Siemens Automotive Corporation Modular fuel injector having a snap-on orifice disk retainer and having a lift set sleeve
US6511003B2 (en) 2000-12-29 2003-01-28 Siemens Automotive Corporation Modular fuel injector having an integral or interchangeable inlet tube and having a terminal connector interconnecting an electromagnetic actuator with an electrical terminal
US6520421B2 (en) 2000-12-29 2003-02-18 Siemens Automotive Corporation Modular fuel injector having an integral filter and o-ring retainer
US6523760B2 (en) 2000-12-29 2003-02-25 Siemens Automotive Corporation Modular fuel injector having interchangeable armature assemblies and having a terminal connector interconnecting an electromagnetic actuator with an electrical terminal
US6523761B2 (en) 2000-12-29 2003-02-25 Siemens Automotive Corporation Modular fuel injector having an integral or interchangeable inlet tube and having a lift set sleeve
US6533188B1 (en) 2000-12-29 2003-03-18 Siemens Automotive Corporation Modular fuel injector having a snap-on orifice disk retainer and having an integral filter and dynamic adjustment assembly
US6536681B2 (en) 2000-12-29 2003-03-25 Siemens Automotive Corporation Modular fuel injector having a surface treatment on an impact surface of an electromagnetic actuator and having an integral filter and O-ring retainer assembly
US6550690B2 (en) 2000-12-29 2003-04-22 Siemens Automotive Corporation Modular fuel injector having interchangeable armature assemblies and having an integral filter and dynamic adjustment assembly
US6565019B2 (en) 2000-12-29 2003-05-20 Seimens Automotive Corporation Modular fuel injector having a snap-on orifice disk retainer and having an integral filter and O-ring retainer assembly
US6568609B2 (en) 2000-12-29 2003-05-27 Siemens Automotive Corporation Modular fuel injector having an integral or interchangeable inlet tube and having an integral filter and o-ring retainer assembly
EP1036934A3 (de) * 1999-03-18 2003-07-09 Siemens VDO Automotive Corporation Kraftstoffeinspritzventil
US6648247B2 (en) 2001-02-02 2003-11-18 Siemens Automotive Corporation Combined filter and adjuster for a fuel injector
US6655609B2 (en) 2000-12-29 2003-12-02 Siemens Automotive Corporation Modular fuel injector having a low mass, high efficiency electromagnetic actuator and having an integral filter and o-ring retainer assembly
US6663026B2 (en) 2000-02-02 2003-12-16 Siemens Automotive Inc Combined filter and adjuster for a fuel injector
US6676044B2 (en) 2000-04-07 2004-01-13 Siemens Automotive Corporation Modular fuel injector and method of assembling the modular fuel injector
US6685112B1 (en) 1997-12-23 2004-02-03 Siemens Automotive Corporation Fuel injector armature with a spherical valve seat
US6769636B2 (en) 2000-12-29 2004-08-03 Siemens Automotive Corporation Modular fuel injector having interchangeable armature assemblies and having an integral filter and O-ring retainer assembly
US6904668B2 (en) 2001-03-30 2005-06-14 Siemens Vdo Automotive Corp. Method of manufacturing a modular fuel injector
EP1555427A2 (de) * 2004-01-13 2005-07-20 Delphi Technologies, Inc. Kraftstoffeinspritzventil
US7093362B2 (en) 2001-03-30 2006-08-22 Siemens Vdo Automotive Corporation Method of connecting components of a modular fuel injector

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5207384A (en) * 1991-09-18 1993-05-04 Siemens Automotive L.P. Swirl generator for an injector
US5335864A (en) * 1991-07-17 1994-08-09 Robert Bosch Gmbh Fuel-injection valve

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5335864A (en) * 1991-07-17 1994-08-09 Robert Bosch Gmbh Fuel-injection valve
US5207384A (en) * 1991-09-18 1993-05-04 Siemens Automotive L.P. Swirl generator for an injector

Cited By (53)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6685112B1 (en) 1997-12-23 2004-02-03 Siemens Automotive Corporation Fuel injector armature with a spherical valve seat
WO1999040315A1 (en) * 1998-02-05 1999-08-12 Siemens Automotive Corporation Non-magnetic shell for welded fuel injector
EP1036934A3 (de) * 1999-03-18 2003-07-09 Siemens VDO Automotive Corporation Kraftstoffeinspritzventil
WO2001007780A1 (de) * 1999-07-27 2001-02-01 Robert Bosch Gmbh Brennstoffeinspritzventil
US6663026B2 (en) 2000-02-02 2003-12-16 Siemens Automotive Inc Combined filter and adjuster for a fuel injector
US7347383B2 (en) 2000-04-07 2008-03-25 Siemens Vdo Automotive Corporation Modular fuel injector and method of assembling the modular fuel injector
US6676044B2 (en) 2000-04-07 2004-01-13 Siemens Automotive Corporation Modular fuel injector and method of assembling the modular fuel injector
US6695232B2 (en) 2000-12-29 2004-02-24 Siemens Automotive Corporation Modular fuel injector having interchangeable armature assemblies and having a lift set sleeve
US6565019B2 (en) 2000-12-29 2003-05-20 Seimens Automotive Corporation Modular fuel injector having a snap-on orifice disk retainer and having an integral filter and O-ring retainer assembly
EP1219817A1 (de) * 2000-12-29 2002-07-03 Siemens Automotive Corporation Modulares Kraftstoffeinspritzventil mit einem Endverbinder zum Verbinden einer elektromagnetischen Betätigungsvorrichtung mit einer vorgebogenen elektrischen Klemme
EP1219815A1 (de) * 2000-12-29 2002-07-03 Siemens Automotive Corporation Modulares Brennstoffeinspritzventil mit einer den Hub einstellenden Hülse
EP1219818A1 (de) * 2000-12-29 2002-07-03 Siemens Automotive Corporation Modulares Kraftstoffeinspritzventil mit einer elektromagnetischen Betätigungsvorrichtung und einem Endverbinder zum Verbinden der Betätigungsvorrichtung mit einem elektrischen Anschluss
EP1221550A1 (de) * 2000-12-29 2002-07-10 Siemens Automotive Corporation Modulares Brennstoffeinspritzventil mit einer elektromagnetischen Betätigungseinrichtung, einem integrierten Filter und einer Justiereinrichtung
EP1219822A1 (de) * 2000-12-29 2002-07-03 Siemens VDO Automotive Corporation Brennstoffeinspritzventil und sein Zusammenbau
US6851631B2 (en) 2000-12-29 2005-02-08 Siemens Vdo Automotive Corp. Modular fuel injector having a low mass, high efficiency electromagnetic actuator and having an integral filter and O-ring retainer assembly
US6499677B2 (en) 2000-12-29 2002-12-31 Siemens Automotive Corporation Modular fuel injector having a low mass, high efficiency electromagnetic actuator and having an integral filter and dynamic adjustment assembly
US6499668B2 (en) 2000-12-29 2002-12-31 Siemens Automotive Corporation Modular fuel injector having a surface treatment on an impact surface of an electromagnetic actuator and having a terminal connector interconnecting an electromagnetic actuator with an electrical terminal
US6502770B2 (en) 2000-12-29 2003-01-07 Siemens Automotive Corporation Modular fuel injector having a snap-on orifice disk retainer and having a terminal connector interconnecting an electromagnetic actuator with an electrical terminal
US6508417B2 (en) 2000-12-29 2003-01-21 Siemens Automotive Corporation Modular fuel injector having a snap-on orifice disk retainer and having a lift set sleeve
US6511003B2 (en) 2000-12-29 2003-01-28 Siemens Automotive Corporation Modular fuel injector having an integral or interchangeable inlet tube and having a terminal connector interconnecting an electromagnetic actuator with an electrical terminal
US6520421B2 (en) 2000-12-29 2003-02-18 Siemens Automotive Corporation Modular fuel injector having an integral filter and o-ring retainer
US6520422B2 (en) 2000-12-29 2003-02-18 Siemens Automotive Corporation Modular fuel injector having a low mass, high efficiency electromagnetic actuator and having a terminal connector interconnecting an electromagnetic actuator with an electrical terminal
US6523756B2 (en) 2000-12-29 2003-02-25 Siemens Automotive Corporation Modular fuel injector having a low mass, high efficiency electromagnetic actuator and having a lift set sleeve
US6523760B2 (en) 2000-12-29 2003-02-25 Siemens Automotive Corporation Modular fuel injector having interchangeable armature assemblies and having a terminal connector interconnecting an electromagnetic actuator with an electrical terminal
US6523761B2 (en) 2000-12-29 2003-02-25 Siemens Automotive Corporation Modular fuel injector having an integral or interchangeable inlet tube and having a lift set sleeve
US6533188B1 (en) 2000-12-29 2003-03-18 Siemens Automotive Corporation Modular fuel injector having a snap-on orifice disk retainer and having an integral filter and dynamic adjustment assembly
US6536681B2 (en) 2000-12-29 2003-03-25 Siemens Automotive Corporation Modular fuel injector having a surface treatment on an impact surface of an electromagnetic actuator and having an integral filter and O-ring retainer assembly
US6543707B2 (en) 2000-12-29 2003-04-08 Siemens Automotive Corporation Modular fuel injector having a lift set sleeve
US6547154B2 (en) 2000-12-29 2003-04-15 Siemens Automotive Corporation Modular fuel injector having a terminal connector interconnecting an electromagnetic actuator with a pre-bent electrical terminal
US6550690B2 (en) 2000-12-29 2003-04-22 Siemens Automotive Corporation Modular fuel injector having interchangeable armature assemblies and having an integral filter and dynamic adjustment assembly
EP1219814A1 (de) * 2000-12-29 2002-07-03 Siemens VDO Automotive Corporation Modulares Brennstoffeinspritzventil mit einem integrierten Filter und einer Justiereinrichtung
US6568609B2 (en) 2000-12-29 2003-05-27 Siemens Automotive Corporation Modular fuel injector having an integral or interchangeable inlet tube and having an integral filter and o-ring retainer assembly
EP1219820A1 (de) * 2000-12-29 2002-07-03 Siemens Automotive Corporation Modulares Einspritzventil und sein Zusammenbau
US6607143B2 (en) 2000-12-29 2003-08-19 Siemens Automotive Corporation Modular fuel injector having a surface treatment on an impact surface of an electromagnetic actuator and having a lift set sleeve
US6840500B2 (en) 2000-12-29 2005-01-11 Siemens Vdo Automotovie Corporation Modular fuel injector having a surface treatment on an impact surface of an electromagnetic actuator and having an integral filter and dynamic adjustment assembly
US6655609B2 (en) 2000-12-29 2003-12-02 Siemens Automotive Corporation Modular fuel injector having a low mass, high efficiency electromagnetic actuator and having an integral filter and o-ring retainer assembly
EP1219819A1 (de) * 2000-12-29 2002-07-03 Siemens Automotive Corporation Modulares Kraftstoffeinspritzventil mit elektromagnetischer Betätigungsvorrichtung und einer den Hub einstellenden Hülse
EP1219821A1 (de) * 2000-12-29 2002-07-03 Siemens VDO Automotive Corporation Modulares Brennstoffeinspritzventil mit einem integrierten oder austauschbaren Einlassrohr, einem integrierten Filter und einer Justiereinrichtung
US6811091B2 (en) 2000-12-29 2004-11-02 Siemens Automotive Corporation Modular fuel injector having an integral filter and dynamic adjustment assembly
EP1219825A1 (de) * 2000-12-29 2002-07-03 Siemens VDO Automotive Corporation Modulares Brennstoffeinspritzventil mit einer Oberflächenbehandlung einer Stossoberfläche eines elektromagnetischen Aktuators, einem integrierten Filter und einer Justiereinrichtung
EP1219816A1 (de) * 2000-12-29 2002-07-03 Siemens Automotive Corporation Modulares Brennstoffeinspritzventil mit austauschbarem Anker und mit einer den Hub einstellenden Hülse
US6698664B2 (en) 2000-12-29 2004-03-02 Siemens Automotive Corporation Modular fuel injector having an integral or interchangeable inlet tube and having an integral filter and dynamic adjustment assembly
US6708906B2 (en) 2000-12-29 2004-03-23 Siemens Automotive Corporation Modular fuel injector having a surface treatment on an impact surface of an electromagnetic actuator and having an integral filter and dynamic adjustment assembly
US6769636B2 (en) 2000-12-29 2004-08-03 Siemens Automotive Corporation Modular fuel injector having interchangeable armature assemblies and having an integral filter and O-ring retainer assembly
US6648247B2 (en) 2001-02-02 2003-11-18 Siemens Automotive Corporation Combined filter and adjuster for a fuel injector
WO2002079636A1 (de) * 2001-03-29 2002-10-10 Robert Bosch Gmbh Einspritzventil
US7036754B2 (en) * 2001-03-29 2006-05-02 Robert Bosch Gmbh Injection valve
US6676043B2 (en) 2001-03-30 2004-01-13 Siemens Automotive Corporation Methods of setting armature lift in a modular fuel injector
US6904668B2 (en) 2001-03-30 2005-06-14 Siemens Vdo Automotive Corp. Method of manufacturing a modular fuel injector
US7093362B2 (en) 2001-03-30 2006-08-22 Siemens Vdo Automotive Corporation Method of connecting components of a modular fuel injector
EP1245827A1 (de) * 2001-03-30 2002-10-02 Siemens VDO Automotive Corporation Verfahren zur Einstellung des Ankerhubs in einem modularen Brennstoffeinspritzventils
EP1555427A2 (de) * 2004-01-13 2005-07-20 Delphi Technologies, Inc. Kraftstoffeinspritzventil
EP1555427A3 (de) * 2004-01-13 2005-08-17 Delphi Technologies, Inc. Kraftstoffeinspritzventil

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