EP0683862A1 - Soupape a commande electromagnetique - Google Patents

Soupape a commande electromagnetique

Info

Publication number
EP0683862A1
EP0683862A1 EP95900661A EP95900661A EP0683862A1 EP 0683862 A1 EP0683862 A1 EP 0683862A1 EP 95900661 A EP95900661 A EP 95900661A EP 95900661 A EP95900661 A EP 95900661A EP 0683862 A1 EP0683862 A1 EP 0683862A1
Authority
EP
European Patent Office
Prior art keywords
valve
armature
core
wedge
face
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
EP95900661A
Other languages
German (de)
English (en)
Other versions
EP0683862B1 (fr
Inventor
Ferdinand Reiter
Martin Maier
Jörg HEYSE
Norbert Keim
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 claimed from DE4421935A external-priority patent/DE4421935A1/de
Application filed by Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of EP0683862A1 publication Critical patent/EP0683862A1/fr
Application granted granted Critical
Publication of EP0683862B1 publication Critical patent/EP0683862B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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
    • 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
    • F02M51/0614—Injectors peculiar thereto with means directly operating the valve needle using electromagnetic operating means characterised by arrangement of electromagnets or fixed armature
    • 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
    • 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
    • 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
    • F02M61/166—Selection of particular materials
    • 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
    • F02M2200/00—Details of fuel-injection apparatus, not otherwise provided for
    • F02M2200/02—Fuel-injection apparatus having means for reducing wear
    • 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
    • F02M2200/50—Arrangements of springs for valves used in fuel injectors or fuel injection pumps
    • F02M2200/505—Adjusting spring tension by sliding spring seats
    • 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
    • F02M2200/90—Selection of particular materials
    • F02M2200/9038—Coatings
    • 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
    • F02M2200/90—Selection of particular materials
    • F02M2200/9053—Metals
    • F02M2200/9061—Special treatments for modifying the properties of metals used for fuel injection apparatus, e.g. modifying mechanical or electromagnetic properties

Definitions

  • the invention is based on an electromagnetically actuated valve according to the preamble of the main claim.
  • Various electromagnetically actuated valves in particular fuel injection valves, are already known, in which components subject to wear are provided with wear-resistant layers.
  • DE-OS 32 30 844 it is also known to provide the armature and stop surface of a fuel injector with wear-resistant surfaces. These surfaces can, for example, be nickel-plated, that is to say provided with an additional layer, or nitrided, that is to say hardened by the incorporation of nitrogen.
  • nitrided that is to say hardened by the incorporation of nitrogen.
  • DE-OS 37 16 072 it is already known from DE-OS 37 16 072 to use hard molybdenum layers for parts of an injection valve which are particularly stressed by wear and corrosion and which are thin and can be subsequently machined with diamonds.
  • DE-OS 38 10 826 describes a fuel injection valve in which at least one stop surface is designed in the shape of a spherical cap in order to achieve an extremely precise air gap, a round-body insert made of non-magnetic, high-strength material being formed in the center of the stop surface.
  • a fuel injection valve is also known from EP-OS 0 536 773, in which a hard metal layer is applied to the armature on its cylindrical peripheral surface and annular stop surface by electroplating.
  • This layer of chrome or nickel has a thickness of 15 to 25 ⁇ m, for example.
  • the galvanic coating a slightly wedge-shaped layer thickness distribution occurs, with a minimally thicker layer being achieved on the outer edges. Due to the galvanically separated layers, the layer thickness distribution is physically predetermined and can hardly be influenced. After a certain operating time, the abutment surface widens in an undesirable manner due to wear, which results in changes in the pulling and falling times of the armature.
  • the electromagnetically actuated valve according to the invention with the characterizing features of the main claim has the advantage over the fact that at least one of the abutting components is designed in such a way that the creation of a wear-resistant surface is ensured that the stop surface is not undesirably enlarged by wear even after a long period of operation, so that the pulling and falling times of the movable component remain almost constant.
  • a particular advantage is that the surface of at least one of the abutting components, in its highest area closest to the opposite component, is made wear-resistant by using a method known per se, e.g. a nitriding process such as plasma nitriding or gas nitriding etc. is hardened.
  • a nitriding process such as plasma nitriding or gas nitriding etc. is hardened.
  • FIG. 1 shows a fuel injection valve
  • FIG. 2 shows an enlarged stop of the
  • FIG. 3 shows a first embodiment of a wedge armature designed according to the invention
  • FIG. 4 shows a second embodiment of a wedge armature
  • FIG. 5 shows a third embodiment of a wedge armature.
  • the solenoid-operated valve shown in FIG. 1, for example, in the form of an injection valve for fuel injection systems of mixture-compressing, spark-ignited internal combustion engines has a core 2, which is surrounded by a solenoid coil 1 and serves as a fuel inlet connection and is, for example, tubular here and a constant over its entire length Has outer diameter.
  • a tubular metallic intermediate part 12 is connected, for example by welding, concentrically to a longitudinal valve axis 10 and thereby surrounds the core end 9 partially axially.
  • the stepped coil body 3 partially overlaps the core 2 and, with a step 15 of larger diameter, the intermediate part 12 at least partially axially.
  • a tubular valve seat carrier 16 extends downstream of the bobbin 3 and the intermediate part 12 and is, for example, firmly connected to the intermediate part 12.
  • a longitudinal bore 17 runs in the valve seat support 16 and is formed concentrically to the valve longitudinal axis 10.
  • a tubular valve needle 19 Arranged in the longitudinal bore 17 is, for example, a tubular valve needle 19 which is connected at its downstream end 20 to a spherical valve closing body 21, on the periphery of which, for example, five flats 22 are provided for the fuel to flow past, for example by welding.
  • the injection valve is actuated electromagnetically in a known manner.
  • the electromagnetic circuit with the magnet coil 1, the core 2 and an armature 27 is used for the axial movement of the valve needle 19 and thus for opening against the spring force of a return spring 25 or closing the injection valve.
  • the armature 27 is connected to the End of the valve needle 19 facing away from the valve closing body 21 is connected by a first weld seam 28 and aligned with the core 2.
  • the end of the valve seat carrier 16 facing away from the core 2 is sealed in the longitudinal bore 17 by a cylindrical valve seat body 29, which has a fixed valve seat, by welding.
  • a guide opening 32 of the valve seat body 29 serves to guide the valve closing body 21 during the axial movement of the valve needle 19 with the armature 27 along the valve longitudinal axis 10.
  • the spherical valve closing body 21 interacts with the valve seat of the valve seat body 29 which tapers in the direction of the cone in the direction of flow.
  • the valve seat body 29 is connected concentrically and firmly to a spray-perforated disk 34, for example in the form of a pot. At least one runs in the base part of the spray perforated disk 34, for example four spray openings 39 formed by eroding or stamping.
  • the insertion depth of the valve seat body 29 with the cup-shaped spray perforated disk 34 determines the presetting of the stroke of the valve needle 19.
  • the one end position of the valve needle 19 when the magnet coil 1 is not energized is determined by the valve closing body 21 resting on the valve seat of the valve seat body 29 , while the other end position of the valve needle 19 when the solenoid coil 1 is excited results from the contact of the armature 27 at the core end 9, that is to say precisely in the region which is embodied according to the invention and is characterized in more detail by a circle.
  • An adjusting sleeve 48 which is pushed into a flow bore 46 of the core 2 concentric to the longitudinal axis 10 of the valve and which is formed, for example, from rolled spring steel sheet, serves to adjust the spring preload on the adjusting sleeve 48 Return spring 25, which in turn is supported with its opposite side on the valve needle 19.
  • the injection valve is largely enclosed with a plastic encapsulation 50, which extends from the core 2 in the axial direction via the magnet coil 1 to the valve seat support 16.
  • This plastic encapsulation 50 includes, for example, an injection-molded electrical connector 52.
  • a fuel filter 61 projects into the flow bore 46 of the core 2 at its inlet end 55 and provides for the filtering out of those fuel components which, because of their size, could cause blockages or damage in the injection valve.
  • FIG. 2 shows the area of the one end position of the valve needle 19 marked with a circle in FIG. 1, in which the armature 27 strikes the core end 9 of the core 2, on a different scale.
  • metallic layers 65 to the core end 9 of the core 2 and to the armature 27, for example chrome or nickel layers, by means of electroplating.
  • the layers 65 are applied both to an end face 67 running perpendicular to the longitudinal valve axis 10 and at least partially to a peripheral face 66 of the armature 27.
  • These layers 65 are particularly wear-resistant and, with their small surface area, reduce hydraulic sticking of the striking surfaces, but without being able to reliably prevent it.
  • the layer thickness of these layers 65 is generally between 10 and 25 ⁇ m.
  • the core 2 and armature 27 only in a relatively small area, for example only in the outer, from the valve. Strike the area of the upper end face of the anchor 27 facing away from the longitudinal axis 10. This requirement is met by the galvanic coating.
  • a field line concentration occurs at the edges of the parts to be coated, here core 2 and armature 27, which leads to a wedge-shaped layer thickness distribution, as indicated in FIG. 2.
  • the wedge-shaped layer 65 applied is therefore only stressed in a small area during the operation of the injection valve. In continuous operation, however, there is no longer a defined stop surface, since parts of the layer 65 are removed by several million stops, so that the stop surface increases ever further and thus the wedge is continuously reduced.
  • part of the armature 27 according to the invention is shown in the area of its upper end face 67 in FIG. 3, which has a wedge section 73 with an inclined, oblique course with respect to the valve longitudinal axis even before the coating or the creation of the wear resistance of the surface 10 has, so that the armature 27 has a wedge shape there.
  • the inclination of the wedge section 73 of the end face 67 of the armature 27 extends inwards in the exemplary embodiment in FIG. 3, it also being possible for a wedge section 73 of the end face 67 to be inclined outward (FIG. 4).
  • the wedge shape of the armature 27 in the region of the end face 67 is already produced during the mechanical processing, for example by means of a correspondingly ground countersinking tool.
  • the wedge shape of the armature 27 before the coating or the generation of the wear resistance in accordance with the required values are predetermined and manufactured such that a magnetic and hydraulic optimum is achieved in each case when used. Hydraulic adhesion of the armature 27 to the core 2 is now completely ruled out by the wedge-shaped armature, since the wedge-shape is present in any case even in the case of layers 65 that are largely flat (also magnetic). With the help of very precisely ground countersinking tools, tighter manufacturing tolerances for the wedge can be maintained than before, so that there is even less variation in the pull-in and fall-out times of the armature 27 when the injection valve is operated.
  • the inclined wedge section 73 of the end face 67 also allows non-galvanic, wear-resistant layers, which may also be magnetic, to be applied without the requirement for a very small stop area remaining unfulfilled.
  • the end face 67 at least in the region of its highest point, can be made wear-resistant by treating the surface by means of a hardening process.
  • a hardening process e.g. the known nitriding processes such as plasma nitriding or gas nitriding are suitable.
  • a stop section 68 of the end face 67 is initially provided, which extends radially inward over a width a perpendicular to the longitudinal valve axis 10 and serves as a stop surface.
  • Stop section 68 represents an almost completely constant annular surface a over the entire operating time. The wear of the stop surface during continuous operation is thus precisely defined.
  • the minimally wedge-shaped, e.g. B. made of chrome layer 65, which is deposited on the end face 67, has only a fraction of the inclination of the inclined wedge section 73 of the armature 27 adjoining the stop section 68. As a result, the coating remains on before coating Anchor 27 provided inclination of the wedge section 73 is completely preserved or is minimally reinforced.
  • the abutment surface width which corresponds to the width a of the abutment section 68, remains constant even when worn, there is a constant contact width during the abutment of the core 2 and armature 27 over the entire
  • At least the surface of the stop section 68 can also be made wear-resistant by a hardening process, so that no additional layer 65 has to be applied to the end face 67.
  • both the armature 27 and the core 2 are provided with wedge sections 73 of the end faces 67 before the coating or the generation of a wear-resistant surface. This ensures an even higher level of security against the impact and prevents hydraulic gluing. If it is expedient, the wedge portion of the end face can of course also be attached only to the core 2, the armature 27 keeping, for example, a flat end face.
  • FIGS. 4 and 5 Further exemplary embodiments of embodiments designed according to the invention
  • the anchors 27 are shown in FIGS. 4 and 5.
  • An anchor 27 is shown in FIG. 4, in which the wedge section 73 of the end face 67 is designed inclined to the outside.
  • FIG. 5 An exemplary embodiment of the armature 27 according to the invention, in which the end face 67 is formed only by the wedge section 73, is shown in FIG. 5.
  • the stop section 68 which has at least a slight radial extension, is completely dispensed with here; rather, there is a wedge on the entire end face 67, so there is no area of the end face 67 perpendicular to the longitudinal axis 10 of the valve.
  • Particularly at very small angles of the wedge section 73 there is also a stable stop, so that a defined stop surface remains even during continuous operation .
  • FIG. 5 of the course of the inclination of the wedge section 73 in the direction of the valve longitudinal axis 10
  • an exemplary embodiment analogous to the exemplary embodiment shown in FIG. 4, in which the wedge section is located is also conceivable 73 extends in the direction away from the longitudinal axis 10 of the valve, that is to say is inclined outward.

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)
  • Manufacturing & Machinery (AREA)
  • Fuel-Injection Apparatus (AREA)
  • Magnetically Actuated Valves (AREA)

Abstract

Dans les soupapes connues d'injection de carburant, les pièces exposées à l'usure, telles que l'induit et le noyau, sont pourvues de couches résistantes à l'usure par exemple en chrome, en molybdène ou en nickel. Si l'on enduit les pièces de la soupape d'injection par un procédé de galvanisation, on obtient une distribution cunéiforme des épaisseurs de la couche qui est souhaitable parce qu'elle permet d'obtenir une zone d'appui réduite mais qui est physiquement prédéterminée et pratiquement impossible à influencer. La soupape décrite comprend au moins une pièce, par exemple l'induit (27), qui présente une surface cunéiforme avant l'application d'une couche résistante à l'usure. Cette surface cunéiforme peut être produite de manière variable en fonction des propriétés magnétiques et hydrauliques optimales que l'on veut obtenir. La section annulaire d'appui (68) constituée par la déclivité cunéiforme a une largeur d'appui ou de contact (a) qui reste constante pendant toute la vie utile de la pièce, étant donné que l'usure de la surface d'appui en service continu n'entraîne pas un accroissement de la largeur de contact. Cette soupape est particulièrement utile dans des systèmes d'injection de carburant de moteurs à combustion interne à allumage à étincelles et à compression du mélange.
EP95900661A 1993-12-09 1994-11-24 Soupape a commande electromagnetique Expired - Lifetime EP0683862B1 (fr)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
DE4341961 1993-12-09
DE4341961 1993-12-09
DE4421935A DE4421935A1 (de) 1993-12-09 1994-06-23 Elektromagnetisch betätigbares Ventil
DE4421935 1994-06-23
PCT/DE1994/001392 WO1995016126A1 (fr) 1993-12-09 1994-11-24 Soupape a commande electromagnetique

Publications (2)

Publication Number Publication Date
EP0683862A1 true EP0683862A1 (fr) 1995-11-29
EP0683862B1 EP0683862B1 (fr) 1998-06-10

Family

ID=25931897

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95900661A Expired - Lifetime EP0683862B1 (fr) 1993-12-09 1994-11-24 Soupape a commande electromagnetique

Country Status (9)

Country Link
US (1) US5732888A (fr)
EP (1) EP0683862B1 (fr)
JP (2) JP3742651B2 (fr)
CN (1) CN1049951C (fr)
BR (1) BR9406079A (fr)
CZ (1) CZ285156B6 (fr)
ES (1) ES2118531T3 (fr)
RU (1) RU2131549C1 (fr)
WO (1) WO1995016126A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002095215A1 (fr) * 2001-05-21 2002-11-28 Robert Bosch Gmbh Soupape d'injection de carburant
WO2004051072A1 (fr) * 2002-12-04 2004-06-17 Robert Bosch Gmbh Soupape d'injection de carburant

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DE19627939C1 (de) * 1996-07-11 1997-03-20 Bosch Gmbh Robert Ventilnadel und Verfahren zur Herstellung einer Ventilnadel
DE19654322C2 (de) * 1996-12-24 1999-12-23 Bosch Gmbh Robert Elektromagnetisch betätigbares Ventil
DE19712591A1 (de) * 1997-03-26 1998-10-01 Bosch Gmbh Robert Brennstoffeinspritzventil und Verfahren zur Herstellung sowie Verwendung eines Brennstoffeinspritzventils
US6047907A (en) 1997-12-23 2000-04-11 Siemens Automotive Corporation Ball valve fuel injector
US6019297A (en) * 1998-02-05 2000-02-01 Siemens Automotive Corporation Non-magnetic shell for welded fuel injector
DE19914711A1 (de) * 1998-05-15 1999-11-18 Ford Motor Co Armatur zum Einsatz in einem Kraftstoffeinspritzer
US6198369B1 (en) * 1998-12-04 2001-03-06 Tlx Technologies Proportional actuator for proportional control devices
US6392516B1 (en) 1998-12-04 2002-05-21 Tlx Technologies Latching solenoid with improved pull force
US6489870B1 (en) 1999-11-22 2002-12-03 Tlx Technologies Solenoid with improved pull force
US20010002680A1 (en) 1999-01-19 2001-06-07 Philip A. Kummer Modular two part fuel injector
US6409102B1 (en) * 1999-03-15 2002-06-25 Aerosance, Inc. Fuel injector assembly
JP2001050133A (ja) * 1999-08-06 2001-02-23 Hitachi Ltd 電子燃料噴射弁
DE19960605A1 (de) * 1999-12-16 2001-07-19 Bosch Gmbh Robert Brennstoffeinspritzventil
DE10008554A1 (de) * 2000-02-24 2001-08-30 Bosch Gmbh Robert Kraftstoffeinspritzventil für Brennkraftmaschinen
US6676044B2 (en) * 2000-04-07 2004-01-13 Siemens Automotive Corporation Modular fuel injector and method of assembling the modular fuel injector
US6409101B1 (en) * 2000-06-30 2002-06-25 Siemens Automotive Corporation Hollow oversized telescopic needle with armature
US6481646B1 (en) 2000-09-18 2002-11-19 Siemens Automotive Corporation Solenoid actuated fuel injector
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
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
US6811091B2 (en) 2000-12-29 2004-11-02 Siemens Automotive Corporation Modular fuel injector having an integral filter and dynamic adjustment assembly
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
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
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
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
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
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
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
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
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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
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Publication number Publication date
BR9406079A (pt) 1996-01-16
CZ285156B6 (cs) 1999-05-12
JP2005337266A (ja) 2005-12-08
CN1049951C (zh) 2000-03-01
JP3742651B2 (ja) 2006-02-08
CZ197795A3 (en) 1996-05-15
EP0683862B1 (fr) 1998-06-10
WO1995016126A1 (fr) 1995-06-15
ES2118531T3 (es) 1998-09-16
US5732888A (en) 1998-03-31
RU2131549C1 (ru) 1999-06-10
JP3864175B2 (ja) 2006-12-27
CN1116871A (zh) 1996-02-14
JPH08506877A (ja) 1996-07-23

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