EP0513037A1 - Electromagnetically operated valve. - Google Patents

Electromagnetically operated valve.

Info

Publication number
EP0513037A1
EP0513037A1 EP91902298A EP91902298A EP0513037A1 EP 0513037 A1 EP0513037 A1 EP 0513037A1 EP 91902298 A EP91902298 A EP 91902298A EP 91902298 A EP91902298 A EP 91902298A EP 0513037 A1 EP0513037 A1 EP 0513037A1
Authority
EP
European Patent Office
Prior art keywords
valve
fuel inlet
connector
armature
core
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
EP91902298A
Other languages
German (de)
French (fr)
Other versions
EP0513037B1 (en
Inventor
Peter Romann
Ferdinand Reiter
Rudolf Babitzka
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
Application filed by Robert Bosch GmbH filed Critical Robert Bosch GmbH
Priority to EP94101334A priority Critical patent/EP0602001B1/en
Publication of EP0513037A1 publication Critical patent/EP0513037A1/en
Application granted granted Critical
Publication of EP0513037B1 publication Critical patent/EP0513037B1/en
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
    • 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
    • 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
    • F02M51/005—Arrangement of electrical wires and connections, e.g. wire harness, sockets, plugs; Arrangement of electronic control circuits in or on fuel injection apparatus
    • 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
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S239/00—Fluid sprinkling, spraying, and diffusing
    • Y10S239/90—Electromagnetically actuated fuel injector having ball and seat type valve
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49002—Electrical device making
    • Y10T29/4902—Electromagnet, transformer or inductor

Definitions

  • the invention is based on an electromagnetically actuated valve according to the type of the main claim.
  • Patent application P 38 25 135.3 has already proposed an electromagnetically actuated valve in which at least part of the valve is enclosed by a plastic jacket and to which an electrical connector is molded. Depending on the embodiment of the electrical connector, different Ventilu injection tools are required. This prevents inexpensive, flexible assembly.
  • valve according to the invention with the characterizing features of the main claim has the advantage of simple manufacture and assembly, which allows inexpensive series production, since only one valve extrusion tool is required for various embodiments of the electrical connector. As a result, there is greater flexibility in assembly. Another advantage is that the magnetic coil is easy to handle and electrical connector existing plastic injection molding.
  • an axial gap is formed between the end face of the core end facing the armature and a shoulder of the intermediate part, in which, by clamping, a residual air gap between the inlet end face of the armature and the core end forms the stroke of the valve closing body when opening ⁇ operation of the valve limiting non-magnetic stop disk is arranged.
  • the fuel inlet connector has a constant outer diameter over its entire length.
  • the cylinder-shaped valve seat body has a constant outer diameter.
  • a valve with the features of independent claim 6 enables a compact, short design of the valve.
  • FIG. 1 shows an exemplary embodiment of a valve designed according to the invention
  • FIG. 2 shows the independent plastic injection-molded part consisting of a magnetic coil and an electrical connector.
  • the electromagnetically operable valve in the form of an injection valve for fuel injection systems of internal combustion engines, for example shown in FIG. 1, has a fuel inlet connection 1, which is surrounded by a magnetic coil 4 and serves as a core and which, for the best possible use of space, has a constant length over its entire length. for example, has outer diameters formed by means of centerless grinding.
  • the magnet coil 4 with a coil body 2, as shown in FIG. 2 is provided with a plastic coating 7, at the same time an electrical connector 21 is also molded on, so that there is an independent plastic injection part containing the magnet coil 4 and the connector 21 .
  • the magnet coil 4 which has a stepped coil body 2 in the radial direction with a winding 13 stepped in the radial direction, in conjunction with the fuel inlet connector 1 having a constant outer diameter, enables a short and compact structure of the injection valve, as will be explained below.
  • a lower core end 3 of the fuel inlet stud 1 is kon ⁇ centrally connected to a valve longitudinal axis 5 tight "a rohrför sodium metal ⁇ lenes intermediate part 6 by welding and thereby engages with an upper cylinder portion 41, the core end 3 partially axially.
  • the stepped coil body 2 partially overlaps the fuel inlet connector 1 and, with a step 42 of larger diameter, the cylinder section 41 of the intermediate part 6.
  • the intermediate section 6 is provided at its end facing away from the fuel inlet connector 1 with a lower cylinder section 43 which has a tubular connecting part 14 overlaps and is tightly connected to it by welding.
  • a cylindrical valve seat body 8 is tightly mounted by welding.
  • the lining up of fuel inlet connector 1, intermediate part 6, connecting part 14 and valve seat body 8 thus represents a rigid metal unit.
  • the valve seat body 8 has a constant outer diameter, for example formed by centerless grinding, so that the valve seat body 8 is full ⁇ can always be used in the connecting part 14 and, due to the longer overlap, a better seal between the valve seat body 8 and the inner bore 30 of the connecting part 14 is achieved.
  • An adjusting sleeve 20 which is pushed into a flow bore 19 of the fuel inlet connection 1 and has a slot 31 in the longitudinal direction and which is formed, for example, from rolled spring steel sheet, serves to adjust the spring preload of a return spring 32 which bears against the adjusting sleeve 20 and which is downstream ⁇ supported on a connecting pipe 11.
  • a tubular armature 12 is connected by welding to the end of the connecting tube 11 facing the return tube 32 and is guided through a guide collar 15 of the intermediate part 6.
  • a valve closing body 10 which interacts with the valve seat 9 of the valve seat body 8, is connected to it, for example by soldering or welding, and is formed, for example, as a ball. Downstream of the valve seat 9 is in the valve seat body
  • Opening 33 formed.
  • the weld seam 35 between the valve seat body 8 and the connecting part 14 is from the spray opening (s) 33 and relatively far away from the valve seat 9, so that a quantity influence and leakage are effectively prevented by a distortion of the valve seat body 8 due to the high temperatures occurring during welding.
  • an axial gap 29 is formed in which a residual air gap between the inlet-side end face 26 of the armature 12 and the end face 23 is clamped the non-magnetic stop disk 27 forming the core end 3 and limiting the stroke of the valve closing body 10 during the opening process of the valve is arranged.
  • the clamped stop disc 27 protects the end face 23 of the core end 3 because of its greater bending stiffness better from wear than a loose disc, in which there is a risk of tilting and uneven striking.
  • the magnet coil 4 is surrounded by at least one guide element 16, which is designed as a bracket in the exemplary embodiment and serves as a ferromagnetic element, which extends in the axial direction over the entire length of the magnet coil 4 and at least partially surrounds the magnet coil 4 in the circumferential direction and with one end rests on the fuel inlet connection 1 and with its other end on the connecting part 14 and with these z. B. is connected by welding.
  • a part of the valve is enclosed by a plastic sheathing 18, which extends axially from the fuel inlet connection 1, via the magnet coil 4 with connector 21 and the at least one guide element 16, and thereby radially extending side faces of one on the circumference of the inlet-side end 44 of the combustion chamber material inlet connector 1 provided annular groove 25 forms.
  • the bottom of the groove which for example has a sealing ring 45, has an annular groove 25 formed by the circumference of the fuel inlet nozzle 1.
  • the plastic casing 18 engages in a holding groove 46 at the inlet end 44 of the fuel inlet connector 1.
  • the described plastic injection 7 of the solenoid 4 in connection with the injection molded connector 21 allows a high degree of flexibility in the assembly of differently designed valves, since only one injection molding tool is used for connection connectors 21 and magnetic coils 4 for producing the plastic jacket 18 is required.

Abstract

Dans les soupapes à commande électromagnétique proposées comportant une tubulure d'admission du carburant entourée d'une bobine magnétique et servant de noyau, une partie au moins de la soupape est entourée d'un revêtement en matière plastique dans lequel est enrobée une prise de raccordement électrique. Selon la forme de la prise de raccordement électrique, différents outils de recouvrement de la soupape par extrusion sont cependant nécessaires. Avec la nouvelle soupape, on effectue, en même temps que le recouvrement par extrusion de la bobine magnétique (4), un moulage par injection de la prise de raccordement électrique (21) et on produit ainsi une pièce d'un seul tenant en matière plastique moulée par injection. Pour différentes formes de la prise de raccordement électrique, un seul outil de recouvrement de la soupape par extrusion suffit, ce qui permet une plus grande souplesse dans la chaîne de montage. La soupape peut être employée comme soupape d'injection pour les systèmes d'injection de carburant.In the electromagnetically controlled valves proposed comprising a fuel intake manifold surrounded by a magnetic coil and serving as a core, at least part of the valve is surrounded by a plastic coating in which a connection socket is coated electric. Depending on the shape of the electrical connection socket, different tools for covering the valve by extrusion are however necessary. With the new valve, an injection molding of the electrical connection socket (21) is carried out, together with the extrusion covering of the magnetic coil (4), and a single piece of material is thus produced. injection molded plastic. For different forms of the electrical connection socket, a single tool for covering the valve by extrusion is sufficient, which allows greater flexibility in the assembly line. The valve can be used as an injection valve for fuel injection systems.

Description

Ele tromaσnβtisch betäti bares Ventil Electro-actuated valve
Stand der TechnikState of the art
Die Erfindung geht aus von einem elektromagnetisch betätigbaren Ven¬ til nach der Gattung des Hauptanspruchs.The invention is based on an electromagnetically actuated valve according to the type of the main claim.
In der Patentanmeldung P 38 25 135.3 ist bereits ein elektromagne¬ tisch betätigbares Ventil vorgeschlagen worden, bei dem zumindest ein Teil des Ventils von einer Kunststoffummantelung umschlossen wird und an die ein elektrischer Anschlußstecker angeformt ist. Je nach Ausführungsform des elektrischen Anschlußsteckers sind aber verschiedene Ventilu spritzungswerkzeuge erforderlich. Dies verhin¬ dert eine kostengünstige flexible Montage.Patent application P 38 25 135.3 has already proposed an electromagnetically actuated valve in which at least part of the valve is enclosed by a plastic jacket and to which an electrical connector is molded. Depending on the embodiment of the electrical connector, different Ventilu injection tools are required. This prevents inexpensive, flexible assembly.
Vorteile der ErfindungAdvantages of the invention
Das erfindungsgemäße Ventil mit den kennzeichnenden Merkmalen des Hauptanspruchs hat demgegenüber den Vorteil einer einfachen Herstel¬ lung und Montage, was eine kostengünstige Serienfertigung erlaubt, da für verschiedene Ausführungsformen des elektrischen Anschlu߬ steckers nur noch ein Ventilumspritzungswerkzeug erforderlich ist. Als Folge ergibt sich eine größere Flexibilität bei der Montage. Als weiterer Vorteil ist eine gute Handhabbarkeit des aus Magnetspule und elektrischem Anschlußstecker bestehenden Kunststoffspritzteiles zu nennen.The valve according to the invention with the characterizing features of the main claim has the advantage of simple manufacture and assembly, which allows inexpensive series production, since only one valve extrusion tool is required for various embodiments of the electrical connector. As a result, there is greater flexibility in assembly. Another advantage is that the magnetic coil is easy to handle and electrical connector existing plastic injection molding.
Durch die in den Unteransprüchen aufgeführten Maßnahmen sind vor¬ teilhafte Weiterbildungen und Verbesserungen des im Hauptanspruch angegebenen Ventils möglich.Advantageous further developments and improvements of the valve specified in the main claim are possible through the measures listed in the subclaims.
Besonders vorteilhaft ist es, am Umfang des Zulaufseitigen Endes des Brennstoffeinlaßstutzens eine Ringnut vorzusehen, deren radial sich erstreckende Seitenflächen durch die einen Teil des Ventils um¬ schließende Kunststoffummantelung und deren Nutgrund durch den Um¬ fang des Brennstoffeinlaßstutzens gebildet wird.It is particularly advantageous to provide an annular groove on the circumference of the inlet-side end of the fuel inlet socket, the radially extending side surfaces of which are formed by the plastic sheath enclosing part of the valve and the groove base of which is formed by the circumference of the fuel inlet socket.
Vorteilhaft ist es auch, wenn zwischen der Stirnfläche des dem Anker zugewandten Kernendes und einer Schulter des Zwischenteiles ein axialer Spalt gebildet ist, in dem durch Einklemmen eine, einen Restluftspalt zwischen der Zulaufseitigen Stirnseite des Ankers und dem Kernende bildende, den Hub des Ventilschließkörpers beim Öff¬ nungsvorgang des Ventils begrenzende nichtmagnetische Anschlag¬ scheibe angeordnet ist.It is also advantageous if an axial gap is formed between the end face of the core end facing the armature and a shoulder of the intermediate part, in which, by clamping, a residual air gap between the inlet end face of the armature and the core end forms the stroke of the valve closing body when opening ¬ operation of the valve limiting non-magnetic stop disk is arranged.
Es ist ebenfalls vorteilhaft, wenn der Brennstoffeinlaßstutzen über seine gesamte Länge einen konstanten Außendurchmesser aufweist.It is also advantageous if the fuel inlet connector has a constant outer diameter over its entire length.
Besonders vorteilhaft ist es, wenn der zylinderför ige Ventilsitz¬ körper einen konstanten Außendurchmesser aufweist.It is particularly advantageous if the cylinder-shaped valve seat body has a constant outer diameter.
Ein Ventil mit den Merkmalen des Nebenanspruchs 6 ermöglicht eine kompakte kurze Bauform des Ventils. ZeichnungA valve with the features of independent claim 6 enables a compact, short design of the valve. drawing
Ein Ausführungsbeispiel der Erfindung ist in der Zeichnung verein¬ facht dargestellt und in der nachfolgenden Beschreibung näher erläu¬ tert. Es zeigen Figur 1 ein Ausführungsbeispiel eines erfindungsge¬ mäß ausgestalteten Ventils und Figur 2 das aus Magnetspule und elek¬ trischem Anschlußstecker bestehende eigenständige Kunststoffspritz¬ teil.An embodiment of the invention is shown in simplified form in the drawing and is explained in more detail in the following description. FIG. 1 shows an exemplary embodiment of a valve designed according to the invention, and FIG. 2 shows the independent plastic injection-molded part consisting of a magnetic coil and an electrical connector.
Beschreibung des AusführungsbeispielsDescription of the embodiment
Das in der Figur 1 beispielsweise dargestellte elektromagnetisch be¬ tätigbare Ventil in Form eines Einspritzventilε für Brennstoffein- spritzanlagen von Brennkraftmaschinen hat einen von einer Magnet¬ spule 4 umgebenen als Kern dienenden Brenrstoffeinlaßstutzen 1, der zur bestmöglichen Raumausnutzung über seine gesamte Länge einen kon¬ stanten, beispielsweise mittels Centerless-Schleifen ausgebildeten Außendurchmesser aufweist. Die Magnetspule 4 mit einem Spulenkörper 2 ist, wie in der Figur 2 dargestellt, mit einer Kunststoffumsprit- zung 7 versehen, wobei zugleich ein elektrischer Anschlußstecker 21 mitangespritzt wird, so daß sich ein die Magnetspule 4 und den An¬ schlußstecker 21 beinhaltendes eigenständiges Kunststoffspritzteil ergibt. Die in radialer Richtung einen gestuften Spulenkörper 2 mit einer in radialer Richtung gestuften Bewicklung 13 aufweisende Mag¬ netspule 4 ermöglicht in Verbindung mit dem einen konstanten Außen¬ durchmesser aufweisenden Brennstoffeinlaßstutzen 1 einen kurzen und kompakten Aufbau des Einspritzventils, wie anschließend erläutert wird.The electromagnetically operable valve in the form of an injection valve for fuel injection systems of internal combustion engines, for example shown in FIG. 1, has a fuel inlet connection 1, which is surrounded by a magnetic coil 4 and serves as a core and which, for the best possible use of space, has a constant length over its entire length. for example, has outer diameters formed by means of centerless grinding. The magnet coil 4 with a coil body 2, as shown in FIG. 2, is provided with a plastic coating 7, at the same time an electrical connector 21 is also molded on, so that there is an independent plastic injection part containing the magnet coil 4 and the connector 21 . The magnet coil 4, which has a stepped coil body 2 in the radial direction with a winding 13 stepped in the radial direction, in conjunction with the fuel inlet connector 1 having a constant outer diameter, enables a short and compact structure of the injection valve, as will be explained below.
Mit einem unteren Kernende 3 des Brennstoffeinlaßstutzens 1 ist kon¬ zentrisch zu einer Ventillängsachse 5 dicht" ein rohrför iges metal¬ lenes Zwischenteil 6 durch Schweißen verbunden und übergreift dabei mit einem oberen Zylinderabschnitt 41 das Kernende 3 teilweise axial. Der gestufte Spulenkörper 2 übergreift teilweise den Brenn- stoffeinlaßεtutzen 1 und mit einer Stufe 42 größeren Durchmessers den Zylinderabschnitt 41 des Zwischenteils 6. Das Zwischenteil 6 ist an seinem dem Brennstoffeinlaßstutzen 1 abgewandten Ende mit einem unteren Zylinderabschnitt 43 versehen, der ein rohrförmiges Verbin¬ dungsteil 14 übergreift und mit diesem durch Schweißen dicht verbun¬ den ist. In das stromabwärts liegende Ende des Verbindungsteils 14 ist ein zylinderförmiger Ventilsitzkörper 8 durch Schweißen dicht montiert. Die Aneinanderreihung von Brennstoffeinlaßstutzen 1, Zwi¬ schenteil 6, Verbindungsteil 14 und Ventilsitzkörper 8 stellt somit eine starre metallene Einheit dar. Der Ventilsitzkörper 8 weist ei¬ nen konstanten, beispielsweise mittels Centerless-Schleifen ausge¬ bildeten Außendurchmesser auf, so daß der Ventilsitzkörper 8 voll¬ ständig in das Verbindungsteil 14 eingesetzt werden kann und durch die längere Überdeckung eine bessere Dichtheit zwischen Ventilsitz¬ körper 8 und der Innenbohrung 30 des Verbindungsteiles 14 erzielt wird.With a lower core end 3 of the fuel inlet stud 1 is kon¬ centrally connected to a valve longitudinal axis 5 tight "a rohrför sodium metal¬ lenes intermediate part 6 by welding and thereby engages with an upper cylinder portion 41, the core end 3 partially axially. The stepped coil body 2 partially overlaps the fuel inlet connector 1 and, with a step 42 of larger diameter, the cylinder section 41 of the intermediate part 6. The intermediate section 6 is provided at its end facing away from the fuel inlet connector 1 with a lower cylinder section 43 which has a tubular connecting part 14 overlaps and is tightly connected to it by welding. In the downstream end of the connecting part 14, a cylindrical valve seat body 8 is tightly mounted by welding. The lining up of fuel inlet connector 1, intermediate part 6, connecting part 14 and valve seat body 8 thus represents a rigid metal unit. The valve seat body 8 has a constant outer diameter, for example formed by centerless grinding, so that the valve seat body 8 is full ¬ can always be used in the connecting part 14 and, due to the longer overlap, a better seal between the valve seat body 8 and the inner bore 30 of the connecting part 14 is achieved.
Eine in eine Strömungsbohrung 19 des Brennstoffeinlaßstutzens 1 ein¬ geschobene, in Längsrichtung einen Schlitz 31 aufweisende Einstell¬ hülse 20, die beispielsweise aus gerolltem Federstahlblech ausge¬ formt ist, dient zur Einstellung der Federvorspannung einer an der Einstellhülse 20 anliegenden Rückstellfeder 32, die sich stromab¬ wärts an einem Verbindungsrohr 11 abstützt. Mit dem der Rückstellfe¬ der 32 zugewandten Ende des Verbindungsrohres 11 ist durch Schweißen ein rohrf rmiger Anker 12 verbunden, der durch einen Führungsbund 15 des Zwischenteils 6 geführt wird. Am anderen Ende des Verbindungs¬ rohres 11 ist mit diesem ein mit dem Ventilsitz 9 des Ventilsitzkör¬ pers 8 zusammenwirkender Ventilschließk rper 10 beispielsweise durch Löten oder Schweißen verbunden, der beispielsweise als Kugel ausge¬ bildet ist. Stromabwärts des Ventilsitzes 9 ist im VentilsitzkörperAn adjusting sleeve 20 which is pushed into a flow bore 19 of the fuel inlet connection 1 and has a slot 31 in the longitudinal direction and which is formed, for example, from rolled spring steel sheet, serves to adjust the spring preload of a return spring 32 which bears against the adjusting sleeve 20 and which is downstream ¬ supported on a connecting pipe 11. A tubular armature 12 is connected by welding to the end of the connecting tube 11 facing the return tube 32 and is guided through a guide collar 15 of the intermediate part 6. At the other end of the connecting tube 11, a valve closing body 10, which interacts with the valve seat 9 of the valve seat body 8, is connected to it, for example by soldering or welding, and is formed, for example, as a ball. Downstream of the valve seat 9 is in the valve seat body
8 wenigstens eine, beispielsweise durch Erodieren geformte Abspritz-8 at least one injection molded, for example by eroding
Öffnung 33 ausgebildet. Die Schweißnaht 35 zwischen Ventilsitzkör¬ per 8 und Verbindungsteil 14 ist von der/den Abspritzöffnung/en 33 und vom Ventilsitz 9 relativ weit entfernt, so daß eine Mengenbeein¬ flussung und Undichtheit durch einen aufgrund der beim Schweißen auftretenden hohen Temperaturen erfolgenden Verzug des Ventilsitz¬ körpers 8 wirkungsvoll verhindert wird.Opening 33 formed. The weld seam 35 between the valve seat body 8 and the connecting part 14 is from the spray opening (s) 33 and relatively far away from the valve seat 9, so that a quantity influence and leakage are effectively prevented by a distortion of the valve seat body 8 due to the high temperatures occurring during welding.
Zwischen der Stirnfläche 23 des dem Anker 12 zugewandten Kernendes 3 und einer zum oberen Zylinderabschnitt 41 führenden Schulter 24 des Zwischenteiles 6 ist ein axialer Spalt 29 gebildet, in dem durch Einklemmen eine, einen Restluftspalt zwischen der Zulaufseitigen Stirnseite 26 des Ankers 12 und der Stirnfläche 23 des Kernendes 3 bildende, den Hub des Ventilschließkörpers 10 beim Öffnungsvorgang des Ventils begrenzende nichtmagnetische Anschlagscheibe 27 angeord¬ net ist. Die geklemmte Anschlagscheibe 27 schützt die Stirnfläche 23 des Kernendes 3 wegen ihrer größeren Biegesteifigkeit besser vor Verschleiß als eine lose Scheibe, bei der die Gefahr des Verkantens und des ungleichmäßigen Anschlagens besteht.Between the end face 23 of the core end 3 facing the armature 12 and a shoulder 24 of the intermediate part 6 leading to the upper cylinder section 41, an axial gap 29 is formed in which a residual air gap between the inlet-side end face 26 of the armature 12 and the end face 23 is clamped the non-magnetic stop disk 27 forming the core end 3 and limiting the stroke of the valve closing body 10 during the opening process of the valve is arranged. The clamped stop disc 27 protects the end face 23 of the core end 3 because of its greater bending stiffness better from wear than a loose disc, in which there is a risk of tilting and uneven striking.
Die Magnetspule 4 ist von wenigstens einem, im Ausführungsbeispiel als Bügel ausgebildeten, als ferromagnetisches Element dienenden Leitelement 16 umgeben, das sich in axialer Richtung über die ge¬ samte Länge der Magnetspule 4 erstreckt und die Magnetspule 4 in Um- fangsrichtung wenigstens teilweise umgibt und mit seinem einen Ende am Brennstoffeinlaßstutzen 1 und mit seinem anderen Ende am Verbin¬ dungsteil 14 anliegt und mit diesen z. B. durch Verschweißen verbun¬ den ist.The magnet coil 4 is surrounded by at least one guide element 16, which is designed as a bracket in the exemplary embodiment and serves as a ferromagnetic element, which extends in the axial direction over the entire length of the magnet coil 4 and at least partially surrounds the magnet coil 4 in the circumferential direction and with one end rests on the fuel inlet connection 1 and with its other end on the connecting part 14 and with these z. B. is connected by welding.
Ein Teil des Ventils ist von einer Kunststoffummantelung 18 um¬ schlossen, die sich vom Brennstoffeinlaßstutzen 1 ausgehend axial über die Magnetspule 4 mit Anschlußstecker 21 und das wenigstens eine Leitelement 16 erstreckt und dabei sich radial erstreckende Seitenflächen einer am Umfang des zulaufseitigen Endes 44 des Brenn¬ stoffeinlaßstutzens 1 vorgesehenen Ringnut 25 bildet. Der Nutgrund der beispielsweise einen Dichtring 45 aufweisenden Ringnut 25 wird durch den Umfang des Brennstoffeinlaßstutzenε 1 ausgebildet. Die Kunststoffummantelung 18 greift am zulaufseitigen Ende 44 des Brenn¬ stoffeinlaßstutzens 1 in eine Haltenut 46.A part of the valve is enclosed by a plastic sheathing 18, which extends axially from the fuel inlet connection 1, via the magnet coil 4 with connector 21 and the at least one guide element 16, and thereby radially extending side faces of one on the circumference of the inlet-side end 44 of the combustion chamber material inlet connector 1 provided annular groove 25 forms. The bottom of the groove, which for example has a sealing ring 45, has an annular groove 25 formed by the circumference of the fuel inlet nozzle 1. The plastic casing 18 engages in a holding groove 46 at the inlet end 44 of the fuel inlet connector 1.
Die beschriebene Kunststoffu spritzung 7 der Magnetspule 4 in Ver¬ bindung mit dem zugleich angespritzten Anschlußstecker 21 erlaubt eine hohe Flexibilität bei der Montage verschieden ausgebildeter Ventile, da für verschieden ausgeführte Anschlußstecker 21 und Mag¬ netspulen 4 zur Erzeugung der Kunststoffummantelung 18 nur ein Um- spritzungswerkzeug erforderlich ist. Die den in radialer Richtung gestuften Spulenkörper 2 mit der in radialer Richtung gestuften Be¬ wicklung 13 aufweisende Magnetspule 4 ermöglicht eine kompakte und kurze Bauform des Ventils, indem sie den oberen Zylinderabschnitt 41 des Zwischenteils 6 überragt und damit eine Verschachtelung der ein¬ zelnen Teile bewirkt. The described plastic injection 7 of the solenoid 4 in connection with the injection molded connector 21 allows a high degree of flexibility in the assembly of differently designed valves, since only one injection molding tool is used for connection connectors 21 and magnetic coils 4 for producing the plastic jacket 18 is required. The magnet coil 4, which has the coil body 2 stepped in the radial direction with the winding 13 stepped in the radial direction, enables a compact and short design of the valve by projecting beyond the upper cylinder section 41 of the intermediate part 6 and thus causing the individual parts to be interleaved .

Claims

Ansprüche Expectations
1. Elektromagnetisch betätigbares Ventil, insbesondere Einspritzven¬ til für Brennstoffeinspritzanlagen von Brennkraftmaschinen, mit ei¬ nem von einer Magnetspule umgebenen, als Kern dienenden Brennstoff¬ einlaßstutzen, mit einem Anker, durch den ein mit einem festen Ven¬ tilsitz zusammenwirkender Ventilschließkörper betätigbar ist, mit einem rohrförmigen metallenen Zwischenteil, das mit seinem einen Ende mit einem, dem Anker zugewandten Kernende des Brennstoffeinla߬ stutzens und mit seinem anderen Ende mit einem rohrförmigen Verbin¬ dungsteil dicht verbunden ist, mit einem den festen Ventilsitz auf¬ weisenden, an dem Verbindungsteil an seinem dem Zwischenteil abge¬ wandten Ende befestigten, metallenen Ventilsitzkörper, mit wenig¬ stens einem als Bügel ausgebildeten und als ferromagnetisches Ele¬ ment dienenden Leitelement, das sich in axialer Richtung über die gesamte Länge der Magnetspule erstreckt und die Magnetspule in Um- fangsrichtung wenigstens teilweise umgibt, mit einer zumindest einen Teil des Ventils umschließenden Kunststoffummantelung, und mit einem elektrischen Anschlußstecker, dadurch gekennzeichnet, daß eine Kunststoffumspritzung (7) die Magnetspule (4) umschließt und zu¬ gleich den elektrischen Anschlußstecker (21) bildet, so daß die Mag¬ netspule (4) zusammen mit dem Anschlußstecker (21) als ein eigen¬ ständiges Kunststoffspritzteil ausgestaltet ist.1. Electromagnetically actuated valve, in particular injection valve for fuel injection systems of internal combustion engines, with a fuel inlet connector surrounded by a magnetic coil and serving as the core, with an armature by means of which a valve closing body interacting with a fixed valve seat can be actuated a tubular metal intermediate part which is tightly connected at one end to a core end of the fuel inlet connector facing the armature and at the other end to a tubular connecting part, with a fixed valve seat on the connecting part at its end attached metal valve seat body facing away from the intermediate part, with at least one guide element designed as a bracket and serving as a ferromagnetic element, which extends in the axial direction over the entire length of the magnet coil and the magnet coil in the circumferential direction at least partially surrounds, with a plastic sheath enclosing at least part of the valve, and with an electrical connector, characterized in that a plastic coating (7) encloses the magnet coil (4) and at the same time forms the electrical connector (21), so that the magnet netspule (4) together with the connector (21) is designed as an independent plastic injection molded part.
2. Ventil nach Anspruch 1, dadurch gekennzeichnet, daß am Umfang des zulaufseitigen Endes (44) des Brennstoffeinlaßstutzens (1) eine Ringnut (25) vorgesehen ist, deren radial sich erstreckende Seiten¬ flächen durch die einen Teil des Ventils umschließende Kunststoffum¬ mantelung (18) und deren Nutgrund durch den Umfang des Brennstoff- einlaßstutzens (1) gebildet wird. 2. Valve according to claim 1, characterized in that an annular groove (25) is provided on the circumference of the inlet-side end (44) of the fuel inlet connector (1), the radially extending side surfaces of which by a part of the valve enclosing plastic sheathing ( 18) and the bottom of the groove is formed by the circumference of the fuel inlet connection (1).
3. Ventil nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß zwi¬ schen einer Stirnfläche (23) des dem Anker (12) zugewandten Kernen-* des (3) und einer Schulter (24) des Zwischenteils (6) ein axialer Spalt (29) gebildet ist, in dem durch Einklemmen eine, einen Rest- luftspalt zwischen der zulaufseitigen Stirnseite (26) des Ankers (12) und dem Kernende (3) bildende, den Hub des Ventilschließkorpers (10) beim ÖffnungsVorgang des Ventils begrenzende nichtmagnetische Anschlagscheibe (27) angeordnet ist.3. Valve according to claim 1 or 2, characterized in that between an end face (23) of the armature (12) facing cores * of (3) and a shoulder (24) of the intermediate part (6) has an axial gap ( 29) is formed in which a non-magnetic stop disk (which limits the stroke of the valve closing body (10) during the opening process of the valve) forms a residual air gap between the inlet-side end face (26) of the armature (12) and the core end (3). 27) is arranged.
4. Ventil nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß der Brennstoffeinlaßstutzen (1) über seine gesamte Länge einen konstanten Außendurchmesser aufweist.4. Valve according to one of claims 1 to 3, characterized in that the fuel inlet connection (1) has a constant outer diameter over its entire length.
5. Ventil nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß der Ventilsitzkörper (8) einen konstanten Außendurchmesser auf¬ weist.5. Valve according to one of claims 1 to 4, characterized in that the valve seat body (8) has a constant outer diameter.
6. Elektromagnetisch betätigbares Ventil, insbesondere Einspritzven¬ til für Brennstoffeinspritzanlagen von Brennkraftmaschinen, mit ei¬ nem von einer Magnetspule umgebenen, als Kern ausgebildeten Brenn- stoffeinlaßstutzen, insbesondere nach Anspruch 1, dadurch gekenn¬ zeichnet, daß die Magnetspule (4) einen in radialer Richtung gestuf¬ ten Spulenkörper (2) mit einer in radialer Richtung gestuften Be¬ wicklung (13) aufweist. 6. Electromagnetically actuated valve, in particular injection valve for fuel injection systems of internal combustion engines, with a fuel inlet socket surrounded by a solenoid, designed as a core, in particular according to claim 1, characterized in that the solenoid (4) has a radial one In the direction of the stepped coil former (2) with a winding (13) stepped in the radial direction.
EP91902298A 1990-02-03 1991-01-21 Electromagnetically operated valve Expired - Lifetime EP0513037B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP94101334A EP0602001B1 (en) 1990-02-03 1991-01-21 Electromagnetically operated injection valve

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE4003228A DE4003228A1 (en) 1990-02-03 1990-02-03 ELECTROMAGNETICALLY ACTUABLE VALVE
DE4003228 1990-02-03
PCT/DE1991/000050 WO1991011611A2 (en) 1990-02-03 1991-01-21 Electromagnetically operated valve

Related Child Applications (1)

Application Number Title Priority Date Filing Date
EP94101334.4 Division-Into 1994-01-29

Publications (2)

Publication Number Publication Date
EP0513037A1 true EP0513037A1 (en) 1992-11-19
EP0513037B1 EP0513037B1 (en) 1994-09-28

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ID=6399369

Family Applications (2)

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EP94101334A Expired - Lifetime EP0602001B1 (en) 1990-02-03 1991-01-21 Electromagnetically operated injection valve

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Country Status (9)

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US (3) US5275341A (en)
EP (2) EP0513037B1 (en)
JP (2) JP2986542B2 (en)
KR (1) KR0185731B1 (en)
BR (1) BR9105985A (en)
DE (3) DE4003228A1 (en)
ES (2) ES2086971T3 (en)
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999000804A1 (en) 1997-06-27 1999-01-07 Robert Bosch Gmbh Method for producing a magnetic coil for a valve and valve with a magnetic coil

Families Citing this family (109)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4131500A1 (en) * 1991-09-21 1993-03-25 Bosch Gmbh Robert ELECTROMAGNETICALLY OPERATED INJECTION VALVE
DE4221757C2 (en) * 1992-07-02 1997-05-15 Rexroth Mannesmann Gmbh Solenoid operated proportional directional valve
DE4325842A1 (en) * 1993-07-31 1995-02-02 Bosch Gmbh Robert Fuel injection valve
DE4412277A1 (en) * 1994-04-09 1995-10-12 Bosch Gmbh Robert Electromagnetically actuated fuel injector
US5433386A (en) * 1994-06-24 1995-07-18 Siemens Automotive L.P. Fuel injector having an adjustment tube that discourages support for a vapor bubble dome
US5494223A (en) * 1994-08-18 1996-02-27 Siemens Automotive L.P. Fuel injector having improved parallelism of impacting armature surface to impacted stop surface
US5592356A (en) * 1994-09-27 1997-01-07 Synchro-Start Products, Inc. Dual coil actuator with timing circuit
JPH08189439A (en) * 1994-12-28 1996-07-23 Zexel Corp Solenoid type fuel injection valve and its nozzle assembly fitting method
US5577663A (en) * 1995-05-19 1996-11-26 Siemens Automotive Corporation Bottom feed injector with top calibration feed
DE19632196B4 (en) * 1996-08-09 2004-11-04 Robert Bosch Gmbh Electromagnetically actuated valve
DE19647587A1 (en) * 1996-11-18 1998-05-20 Bosch Gmbh Robert Fuel injector
JPH10196488A (en) * 1997-01-08 1998-07-28 Aisan Ind Co Ltd Electromagnetic fuel injection valve
US5944262A (en) * 1997-02-14 1999-08-31 Denso Corporation Fuel injection valve and its manufacturing method
DE19712922B4 (en) * 1997-03-27 2005-08-11 Robert Bosch Gmbh Fuel injector
DE19739850A1 (en) * 1997-09-11 1999-03-18 Bosch Gmbh Robert Electromagnetically actuated valve
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
DE19827136A1 (en) * 1998-06-18 1999-12-23 Bosch Gmbh Robert Fuel injector
US20010002680A1 (en) 1999-01-19 2001-06-07 Philip A. Kummer Modular two part fuel injector
US6279844B1 (en) * 1999-03-18 2001-08-28 Siemens Automotive Corporation Fuel injector having fault tolerant connection
GB9914642D0 (en) * 1999-06-24 1999-08-25 Lucas Ind Plc Fuel injector
GB9919661D0 (en) * 1999-08-20 1999-10-20 Lucas Industries Ltd Actuator housing
JP2001082283A (en) 1999-09-20 2001-03-27 Hitachi Ltd Solenoid fuel injection valve
JP4186145B2 (en) * 1999-09-30 2008-11-26 株式会社デンソー connector
DE10008554A1 (en) * 2000-02-24 2001-08-30 Bosch Gmbh Robert Fuel injection valve for internal combustion engines
US6409145B1 (en) 2000-02-28 2002-06-25 Delphi Technologies, Inc. Plunger assembly having a preset spring force pre-load
EP1270926B1 (en) * 2000-03-08 2007-08-01 Hitachi, Ltd. Electromagnetic type fuel injection valve
US20040108395A1 (en) * 2001-09-13 2004-06-10 Hitachi, Ltd. Electromagnetic fuel injector
US6676044B2 (en) 2000-04-07 2004-01-13 Siemens Automotive Corporation Modular fuel injector and method of assembling the modular fuel injector
JP4158187B2 (en) 2000-05-12 2008-10-01 株式会社デンソー Fuel injection valve
DE10029280A1 (en) * 2000-06-14 2001-12-20 Bosch Gmbh Robert Encapsulation of a magnet coil for fuel injection uses an injection mold for a plastics to be injected between the coil and the housing and cover the electrical connection in a single-stage operation
JP2002048030A (en) * 2000-07-31 2002-02-15 Hitachi Ltd Fuel injection valve and internal combustion engine mounted with the same
DE10039077A1 (en) * 2000-08-10 2002-02-21 Bosch Gmbh Robert Fuel injection valve esp. of IC engines with solenoid coil and armature and return spring also valve needle for operating valve closing body which together with valve seat surface forms sealed seat
DE10042650C1 (en) * 2000-08-30 2002-05-02 Thomas Magnete Gmbh Switching valve has a holding part engaging around the entire valve body; with a guide part between holding part and valve body guiding the valve body within it and holding a part outside it
US6481646B1 (en) 2000-09-18 2002-11-19 Siemens Automotive Corporation Solenoid actuated fuel injector
US6543707B2 (en) 2000-12-29 2003-04-08 Siemens Automotive Corporation Modular fuel injector having a lift set sleeve
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
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
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
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
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
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
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
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
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
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
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
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
US6811091B2 (en) 2000-12-29 2004-11-02 Siemens Automotive Corporation Modular fuel injector 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
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
US6520421B2 (en) 2000-12-29 2003-02-18 Siemens Automotive Corporation Modular fuel injector having an integral filter and o-ring retainer
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
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
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
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
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
US6695232B2 (en) 2000-12-29 2004-02-24 Siemens Automotive Corporation Modular fuel injector having interchangeable armature assemblies and having a lift set sleeve
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
DE10112143A1 (en) * 2001-03-14 2002-09-19 Bosch Gmbh Robert Fuel injector
US7093362B2 (en) 2001-03-30 2006-08-22 Siemens Vdo Automotive Corporation Method of connecting components of a modular fuel injector
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
US6687997B2 (en) 2001-03-30 2004-02-10 Siemens Automotive Corporation Method of fabricating and testing a modular fuel injector
JP3719978B2 (en) * 2001-12-27 2005-11-24 株式会社日立製作所 Fuel injection valve
JP2003328901A (en) * 2002-05-13 2003-11-19 Hitachi Unisia Automotive Ltd Fuel injection valve
JP4082929B2 (en) * 2002-05-21 2008-04-30 株式会社日立製作所 Fuel injection valve
DE10240469A1 (en) * 2002-09-03 2004-03-11 Wabco Gmbh & Co. Ohg magnetic valve
US6644568B1 (en) * 2002-10-24 2003-11-11 Visteon Global Technologies, Inc. Fuel injector with spiral-wound spring adjustment tube
US6830201B2 (en) * 2002-12-26 2004-12-14 Robert Bosch Gmbh High pressure control valve for a fuel injector
US6978950B2 (en) * 2003-02-21 2005-12-27 Siemens Vdo Automotive Corporation High flow, tubular closure member for a fuel injector
US7007924B2 (en) * 2003-06-27 2006-03-07 Parker-Hannifin Corporation One-piece coil conduit
DK175664B1 (en) * 2003-12-23 2005-01-10 Ln Systems Aps Internal combustion engine comprises at least one cylinder with corresponding top piece, piston moving backward and forward in cylinder
DE102004025969A1 (en) * 2004-05-18 2005-12-15 Hydraulik-Ring Gmbh Solenoid valve for cam shaft adjustment device, has magnetic part comprising housing connected with bush of valve part, and seal arranged in housing for sealing valve in mounting position, where housing has axial retaining components
DE102004037541B4 (en) * 2004-08-03 2016-12-29 Robert Bosch Gmbh Fuel injector
US7552880B2 (en) * 2004-08-05 2009-06-30 Continental Automotive Systems Us, Inc. Fuel injector with a deep-drawn thin shell connector member and method of connecting components
EP1795739B1 (en) * 2004-09-27 2012-12-26 Keihin Corporation Solenoid fuel injection valve
JP3955055B2 (en) * 2004-09-27 2007-08-08 株式会社ケーヒン Electromagnetic fuel injection valve
JP2006242046A (en) 2005-03-01 2006-09-14 Hitachi Ltd Fuel injection valve
DE102009000183A1 (en) 2009-01-13 2010-07-15 Robert Bosch Gmbh Fuel injection valve for fuel injection systems of internal combustion engines, particularly for direct injection of fuel in combustion chamber of internal combustion engine, has actuator and flow choke provided in fuel supply
DE102009022496A1 (en) * 2009-05-25 2011-01-05 Focke & Co.(Gmbh & Co. Kg) Valve, in particular glue valve
US8317112B2 (en) * 2010-01-25 2012-11-27 Continental Automotive Systems Us, Inc. High pressure fuel injector seat that resists distortion during welding
DE102013216836A1 (en) * 2013-08-23 2015-02-26 Continental Automotive Gmbh Actuator for actuating an injection valve and injection valve
DE102013225820A1 (en) 2013-12-13 2015-06-18 Robert Bosch Gmbh Fuel injector
DE102013225817A1 (en) 2013-12-13 2015-06-18 Robert Bosch Gmbh Fuel injector
DE102013225834A1 (en) 2013-12-13 2015-06-18 Robert Bosch Gmbh Fuel injector
DE102013225840A1 (en) 2013-12-13 2015-06-18 Robert Bosch Gmbh Fuel injector
DE102013225812A1 (en) 2013-12-13 2015-06-18 Robert Bosch Gmbh Fuel injector
DE102013225829A1 (en) 2013-12-13 2015-06-18 Robert Bosch Gmbh Fuel injector
DE102014225994A1 (en) 2014-12-16 2016-06-16 Robert Bosch Gmbh Fuel injector
DE102014226003A1 (en) 2014-12-16 2016-06-16 Robert Bosch Gmbh Fuel injector
DE102014225999A1 (en) 2014-12-16 2016-06-16 Robert Bosch Gmbh Fuel injector
DE102015217673A1 (en) 2015-09-15 2017-03-16 Continental Automotive Gmbh Injection device for metering a fluid and motor vehicle with such an injection device
DE102015226533A1 (en) 2015-12-22 2017-06-22 Robert Bosch Gmbh Fuel injector
DE102015226541A1 (en) 2015-12-22 2017-06-22 Robert Bosch Gmbh Fuel injector
DE102015226528A1 (en) 2015-12-22 2017-06-22 Robert Bosch Gmbh Fuel injector
DE102015226515A1 (en) 2015-12-22 2017-06-22 Robert Bosch Gmbh Fuel injector
DE102016226142A1 (en) 2016-12-23 2018-06-28 Robert Bosch Gmbh Fuel injector
DE102016226135A1 (en) 2016-12-23 2018-06-28 Robert Bosch Gmbh Fuel injector
DE102017206057A1 (en) 2017-04-10 2018-10-11 Robert Bosch Gmbh Coil assembly for electromagnetic valves
JP6782668B2 (en) * 2017-06-16 2020-11-11 日立オートモティブシステムズ株式会社 Fuel injection valve
US10502112B2 (en) * 2017-09-14 2019-12-10 Vitesco Technologies USA, LLC Injector for reductant delivery unit having fluid volume reduction assembly
US10947880B2 (en) 2018-02-01 2021-03-16 Continental Powertrain USA, LLC Injector for reductant delivery unit having fluid volume reduction assembly
DE102020214154A1 (en) 2020-11-11 2022-05-12 Robert Bosch Gesellschaft mit beschränkter Haftung fuel injector
DE102020215217A1 (en) 2020-12-02 2022-06-02 Robert Bosch Gesellschaft mit beschränkter Haftung fuel injector
DE102020215218A1 (en) 2020-12-02 2022-06-02 Robert Bosch Gesellschaft mit beschränkter Haftung fuel injector
DE102020215215A1 (en) 2020-12-02 2022-06-02 Robert Bosch Gesellschaft mit beschränkter Haftung fuel injector
DE102020215621A1 (en) 2020-12-10 2022-06-15 Robert Bosch Gesellschaft mit beschränkter Haftung fuel injector
DE102020215794A1 (en) 2020-12-14 2022-06-15 Robert Bosch Gesellschaft mit beschränkter Haftung fuel injector

Family Cites Families (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2403770A1 (en) * 1974-01-26 1975-08-14 Bosch Gmbh Robert ELECTROMAGNETIC 3-WAY VALVE ARRANGEMENT
DE2755400A1 (en) * 1977-12-13 1979-06-21 Bosch Gmbh Robert FUEL INJECTION SYSTEM FOR COMBUSTION ENGINES, IN PARTICULAR FOR STRATIFIC CHARGE ENGINES
DE3010612A1 (en) * 1980-03-20 1981-10-01 Robert Bosch Gmbh, 7000 Stuttgart ELECTROMAGNETICALLY ACTUABLE VALVE
FR2492894B1 (en) * 1980-10-29 1985-06-07 Renault BALL ELECTROMAGNETICALLY CONTROLLED INJECTOR
JPS58137864U (en) * 1982-02-18 1983-09-16 愛三工業株式会社 electromagnetic fuel injector
US4646974A (en) * 1985-05-06 1987-03-03 General Motors Corporation Electromagnetic fuel injector with orifice director plate
US4610080A (en) * 1985-07-29 1986-09-09 Allied Corporation Method for controlling fuel injector lift
DE3528296A1 (en) * 1985-08-07 1987-02-19 Fluidtech Gmbh MAGNETIC VALVE
DE3535124A1 (en) * 1985-10-02 1987-04-02 Bosch Gmbh Robert ELECTROMAGNETICALLY ACTUABLE FUEL INJECTION VALVE
DE3723225A1 (en) * 1987-07-14 1989-01-26 Bosch Gmbh Robert Solenoid valve with flow through the interior
DE3739494A1 (en) * 1987-11-21 1989-06-01 Sueddeutsche Kuehler Behr VALVE FOR CONTROLLING THE COOLING WATER CIRCUIT IN COMBUSTION ENGINES
IT213013Z2 (en) * 1987-11-24 1989-10-13 Weber Srl EXCITATION COIL FOR A FUEL DOSING AND SPRAYING VALVE FOR A FUEL INJECTION DEVICE IN AN INTERNAL COMBUSTION ENGINE
IT1211626B (en) * 1987-12-24 1989-11-03 Weber Srl ELECTROMAGNETIC FUEL INJECTOR OF THE PERFECT TYPE
US5001987A (en) * 1988-06-29 1991-03-26 Heico Inc. Lightweight car-on-track system
DE3825135A1 (en) * 1988-07-23 1990-01-25 Bosch Gmbh Robert ELECTROMAGNETICALLY ACTUABLE VALVE
DE3831196A1 (en) * 1988-09-14 1990-03-22 Bosch Gmbh Robert ELECTROMAGNETICALLY ACTUABLE VALVE
DE3841142C2 (en) * 1988-12-07 1994-09-29 Bosch Gmbh Robert Injector
DE4109868A1 (en) * 1991-03-26 1992-10-01 Bosch Gmbh Robert ADJUSTING SOCKET FOR AN ELECTROMAGNETICALLY ACTUABLE VALVE AND METHOD FOR THE PRODUCTION THEREOF
US5207387A (en) * 1991-07-29 1993-05-04 Siemens Automotive L.P. Means for attenuating audible noise from a solenoid-operated fuel injector

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO9111611A2 *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999000804A1 (en) 1997-06-27 1999-01-07 Robert Bosch Gmbh Method for producing a magnetic coil for a valve and valve with a magnetic coil
US6702253B2 (en) 1997-06-27 2004-03-09 Robert Bosch Gmbh Method for producing a magnetic coil for a valve and valve with a magnetic coil

Also Published As

Publication number Publication date
EP0602001B1 (en) 1996-04-10
JPH05503976A (en) 1993-06-24
US6341412B1 (en) 2002-01-29
DE4003228C2 (en) 1992-11-26
JP2986542B2 (en) 1999-12-06
RU2092735C1 (en) 1997-10-10
KR920703997A (en) 1992-12-18
DE59107672D1 (en) 1996-05-15
ES2062761T3 (en) 1994-12-16
DE4003228A1 (en) 1991-08-22
JP3027353B2 (en) 2000-04-04
WO1991011611A3 (en) 1991-09-19
JPH10122085A (en) 1998-05-12
EP0602001A3 (en) 1994-11-17
WO1991011611A2 (en) 1991-08-08
KR0185731B1 (en) 1999-03-20
EP0513037B1 (en) 1994-09-28
EP0602001A2 (en) 1994-06-15
US5580001A (en) 1996-12-03
US5275341A (en) 1994-01-04
BR9105985A (en) 1992-11-10
ES2086971T3 (en) 1996-07-01
DE59103119D1 (en) 1994-11-03

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