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DE3939093A1 - ELECTROMAGNETICALLY ACTUABLE FUEL INJECTION VALVE - Google Patents

ELECTROMAGNETICALLY ACTUABLE FUEL INJECTION VALVE

Info

Publication number
DE3939093A1
DE3939093A1 DE3939093A DE3939093A DE3939093A1 DE 3939093 A1 DE3939093 A1 DE 3939093A1 DE 3939093 A DE3939093 A DE 3939093A DE 3939093 A DE3939093 A DE 3939093A DE 3939093 A1 DE3939093 A1 DE 3939093A1
Authority
DE
Germany
Prior art keywords
valve seat
valve
guide cylinder
fuel injection
injection valve
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Withdrawn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
DE3939093A
Other languages
German (de)
Inventor
Max Dipl Ing Dr Greiner
Peter Dipl Ing Romann
Ferdinand Dipl Ing Reiter
Rudolf Dipl Ing 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 DE3939093A priority Critical patent/DE3939093A1/en
Priority to AU65151/90A priority patent/AU635785B2/en
Priority to DE90914674T priority patent/DE59004626D1/en
Priority to EP90914674A priority patent/EP0455758B1/en
Priority to PCT/DE1990/000775 priority patent/WO1991008392A1/en
Priority to ES90914674T priority patent/ES2050457T3/en
Priority to BR909007081A priority patent/BR9007081A/en
Priority to KR1019910700769A priority patent/KR0172131B1/en
Priority to JP51354290A priority patent/JP3167321B2/en
Priority to HU907635A priority patent/HU209966B/en
Priority to CS905835A priority patent/CZ279368B6/en
Publication of DE3939093A1 publication Critical patent/DE3939093A1/en
Priority to SU915001118A priority patent/RU2023900C1/en
Priority to US07/989,720 priority patent/US5285969A/en
Withdrawn legal-status Critical Current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
    • 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
    • F02M61/188—Spherical or partly spherical shaped valve member ends
    • 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
    • F02M51/00—Fuel-injection apparatus characterised by being operated electrically
    • F02M51/06—Injectors peculiar thereto with means directly operating the valve needle
    • F02M51/08—Injectors peculiar thereto with means directly operating the valve needle specially for low-pressure fuel-injection
    • 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
    • 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
    • F02M61/1873—Valve seats or member ends having circumferential grooves or ridges, e.g. toroidal

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Fuel-Injection Apparatus (AREA)
  • Magnetically Actuated Valves (AREA)

Abstract

The aim of the invention is to provide, in an electromagnetically operated fuel-injection valve (1) for an internal-combustion engine, a high-precision disposition of the outlet aperture, valve seat and guide cylinder relative to each other, thus increasing the operating precision and reducing the wear of the fuel-injection valve. This is achieved by virtue of the fact that the valve seat body (5) includes the guide cylinder (7), the valve seat (8) and the outlet aperture (9), located integral with and inside the valve-seat body near its axis. The invention is intended in particular for motor-vehicle fuel-injection units.

Description

Stand der TechnikState of the art

Die Erfindung geht aus von einem Kraftstoffeinspritzventil nach der Gattung des Anspruchs 1.The invention relates to a fuel injection valve according to the Genus of claim 1.

Durch die DE-PS 31 02 642 ist schon ein gattungsgemäßes Kraftstoff­ einspritzventil bekannt. Bei diesem sind ein Führungsring mit dem Führungszylinder und dem Ventilsitz einerseits und ein als Düse be­ zeichnetes Teil mit einer Austrittsöffnung für den einzuspritzenden Kraftstoff andererseits je ein gesondertes Teil. Der Führungsring ist mit Preßsitz in der Düse gehalten. Dies erfordert hohe Maßgenau­ igkeit der Einzelteile und einen hohen Montageaufwand für das Kraft­ stoffeinspritzventil. Geringe Überschreitungen der Maßtoleranzen dieser Einzelteile führen bei der Montage des Kraftstoffeinspritz­ ventils zu einer Verformung des Ventilsitzes und außerdem zu schlechter Konzentrizität des Führungszylinders zum Ventilsitz und zur Austrittsöffnung. Dies hat ein verstärkt ungleichmäßiges Kraft­ stoffstrahlbild zur Folge.DE-PS 31 02 642 is a generic fuel injection valve known. This is a guide ring with the Guide cylinder and the valve seat on the one hand and a be as a nozzle drawn part with an outlet for the injected On the other hand, fuel has a separate part. The guide ring is held in the nozzle with a press fit. This requires high dimensional accuracy ity of the individual parts and a high assembly effort for the force fabric injector. Slight violations of dimensional tolerances these items lead to the assembly of the fuel injection valve to a deformation of the valve seat and also to poor concentricity of the guide cylinder to the valve seat and to the outlet opening. This has an increasingly uneven force result of the jet pattern.

Vorteile der ErfindungAdvantages of the invention

Das erfindungsgemäße Kraftstoffeinspritzventil mit den kennzeichnen­ den Merkmalen des Anspruchs 1 hat demgegenüber den Vorteil, daß der Montageaufwand verringert wird und Führungszylinder, Ventilsitz und Einspritzöffnung genau zur Achse des Ventilsitzkörpers fluchten. Diese hohe Genauigkeit ist innerhalb engerer Toleranzen möglich. Ein konstant präzises Ansprechen des Kraftstoffeinspritzventils bei be­ ständig genauem Einspritzzeitpunkt, exakter Dosierung des Kraft­ stoffs bei verbessertem Kraftstoffstrahlbild wird erreicht. Weitere vorteilhafte Ausgestaltungen der Erfindung ergeben sich aus den Un­ teransprüchen.Label the fuel injector according to the invention with the features of claim 1 has the advantage that the Assembly effort is reduced and guide cylinder, valve seat and Align the injection opening exactly with the axis of the valve seat body. This high accuracy is possible within narrow tolerances. A constant precise response of the fuel injector at be Always precise injection timing, exact dosage of the force material with an improved fuel spray pattern is achieved. Further advantageous embodiments of the invention result from the Un claims.

Besonders vorteilhaft ist es für eine kostengünstige und maßgenaue Herstellung, den Führungszylinder und/oder den Ventilsitz und/oder die Drallnuten durch Prägen zu erzeugen.It is particularly advantageous for an inexpensive and dimensionally accurate Manufacturing, the guide cylinder and / or the valve seat and / or to produce the twist grooves by embossing.

Zeichnungdrawing

Ein Ausführungsbeispiel der Erfindung ist in der nachfolgenden Be­ schreibung anhand der zugehörigen Zeichnung näher erläutert. Die Fig. 1 zeigt die Schnittdarstellung des Ventilsitzbereichs eines Kraftstoffeinspritzventils, die Fig. 2 zeigt den Ventilsitzkörper des Kraftstoffeinspritzventils als Einzelheit.An embodiment of the invention is described in the following description with reference to the accompanying drawings. Fig. 1 shows the sectional view of the valve seat portion of a fuel injection valve, Fig. 2 shows the valve seat body of the fuel injection valve as a detail.

Beschreibung des AusführungsbeispielsDescription of the embodiment

Das in Fig. 1 gezeigte Kraftstoffeinspritzventil 1 für eine Kraft­ stoffeinspritzanlage gemischverdichtender, fremdgezündeter Brenn­ kraftmaschinen hat ein Ventilgehäuse 3 mit einer Durchgangsöffnung 4, in der ein Ventilsitzkörper 5 mittels einer Schweißverbindung 6 befestigt ist. Der Ventilsitzkörper 5 ist mit einem zentralen, boh­ rungsartigen Führungszylinder 7 versehen. Stromabwärts des Führungs­ zylinders 7 weist der Ventilsitzkörper 5 weiterhin einen Ventilsitz 8 und darauf folgend wenigstens eine Austrittsöffnung 9 zur Kraft­ stoffeinspritzung in ein Saugrohr einer Brennkraftmaschine auf.The fuel injection valve shown in FIG. 1 1 for a fuel injection system gemischverdichtender, spark ignited internal combustion engines having a valve housing 3 with a through-opening 4, in which a valve seat body 5 is fixed by means of a welding joint 6. The valve seat body 5 is provided with a central, drilling-like guide cylinder 7 . Downstream of the guide cylinder 7 , the valve seat body 5 also has a valve seat 8 and subsequently at least one outlet opening 9 for fuel injection into an intake manifold of an internal combustion engine.

Durch die Durchgangsöffnung 4 ragt ein rohrförmiges Ventilschließ­ glied 10 mit radialen Öffnungen 11. Auf der dem Ventilsitz 8 zuge­ wandten Seite trägt das Ventilschließglied 10 einen Ventilschließ­ körper 12, beispielsweise in Form einer gehärteten Kugel. Auf der dem Ventilsitz 8 abgewandten Seite trägt das Ventilschließglied 10 einen Anker 15 aus weichmagnetischem Material. Der Ventilschließkör­ per 12 ragt mit engem Spiel in den Führungszylinder 7 und liegt im geschlossenen Zustand des Kraftstoffeinspritzventils 1 am Ventilsitz 8 an. Die Wand des Führungszylinders 7 ist mit schräg zur Achse des Ventilschließgliedes 10 verlaufenden Drallnuten 16 versehen. Ring­ förmig läuft zwischen dem Führungszylinder 7 und dem Ventilsitz 8 eine Nut 22 um und unterbricht damit den Übergang der Drallnuten 16 zum Ventilsitz 8.A tubular valve closing member 10 with radial openings 11 projects through the passage opening 4 . On the side facing the valve seat 8 , the valve closing member 10 carries a valve closing body 12 , for example in the form of a hardened ball. On the side facing away from the valve seat 8 , the valve closing member 10 carries an armature 15 made of soft magnetic material. The valve closing body protrudes by 12 with tight play in the guide cylinder 7 and is in the closed state of the fuel injection valve 1 on the valve seat 8 . The wall of the guide cylinder 7 is provided with swirl grooves 16 extending obliquely to the axis of the valve closing member 10 . A groove 22 runs in a ring shape between the guide cylinder 7 and the valve seat 8 and thus interrupts the transition of the swirl grooves 16 to the valve seat 8 .

In Schließrichtung beaufschlagt eine Druckfeder 17 das Ventil­ schließglied 10. Eine Magnetspule 18 ist zum Anker 15 benachbart so angeordnet, daß sie, sobald sie erregt wird, den Anker 15 entgegen der Schließrichtung anhebt.In the closing direction, a compression spring 17 acts on the valve closing member 10 . A magnet coil 18 is arranged adjacent to the armature 15 in such a way that, as soon as it is excited, it raises the armature 15 against the closing direction.

Der in Fig. 2 gezeigte Ventilsitzkörper 5 zeigt deutlich die Drall­ nuten 16, die zur Achse des Ventilsitzkörpers 5 geneigt verlaufen. Außerdem sind der Ventilsitz 8 und die wenigstens eine Austrittsöff­ nung 9 erkennbar. Bei dieser Ausführungsform des Ventilsitzkörpers 5 ist besondere Bearbeitungsgenauigkeit für den Führungszylinder 7 notwendig, zu dem der Ventilsitz 8 konzentrisch sein muß, damit das Ventilschließglied 10 beim Öffnen und Schließen schnell vom Ventil­ sitz 8 abhebt bzw. schnell dichtet. Der Reibweg zwischen Ventil­ schließglied 10 und Ventilsitz 8 ist dadurch so kurz wie möglich gehalten. Eine Mantelfläche 20 des Ventilsitzkörpers 5 darf zum Führungszylinder 7 durchaus leicht exzentrisch sein, da sich dies durch die Länge des Ventilschließgliedes 10 und die Kugelform des Ventilschließkörpers 12 nicht nachteilig auswirkt.The valve seat body 5 shown in Fig. 2 clearly shows the swirl grooves 16 which are inclined to the axis of the valve seat body 5 . In addition, the valve seat 8 and the at least one outlet opening 9 can be seen . In this embodiment of the valve seat body 5 , special machining accuracy is necessary for the guide cylinder 7 , to which the valve seat 8 must be concentric so that the valve closing member 10 lifts off or seals quickly from the valve seat 8 when opening and closing. The friction path between the valve closing member 10 and valve seat 8 is kept as short as possible. A lateral surface 20 of the valve seat body 5 may be slightly eccentric to the guide cylinder 7 , since this does not have a disadvantageous effect due to the length of the valve closing member 10 and the spherical shape of the valve closing body 12 .

Üm das Kraftstoffeinspritzventil 1 zu öffnen, wird ein nicht darge­ stellter elektrischer Stromkreis der Magnetspule 18 geschlossen. Die daraufhin wirksamen magnetischen Kräfte ziehen den Anker 15 an. Mit diesem gemeinsam wird der Ventilschließkörper 12 des Ventilschließ­ gliedes 10 vom Ventilsitz 8, entgegen der beaufschlagenden Druckfe­ der 17 wegbewegt, so daß der Kraftstoff durch das Ventilschließglied 10 und dessen radiale Öffnungen 11 hindurch über die Drallnuten 16 zum Ventilsitz 8 und stromabwärts zu der mindestens einen Austritts­ öffnung 9 gelangen und abgespritzt werden kann. Die umlaufende Nut 22 zwischen Führungszylinder 7 und dem Ventilsitz 8 ermöglicht eine gleichmäßigere Kraftstoffverteilung, wodurch die Kraftstoffaufberei­ tung zusätzlich verbessert wird.To open the fuel injector 1 , an electrical circuit, not shown, of the solenoid 18 is closed. The magnetic forces then effective attract armature 15 . With this joint, the valve closing body 12 of the valve closing member 10 is moved away from the valve seat 8 , counter to the pressurizing Druckfe 17 , so that the fuel through the valve closing member 10 and its radial openings 11 through the swirl grooves 16 to the valve seat 8 and downstream to the at least one Exit opening 9 and can be hosed down. The circumferential groove 22 between the guide cylinder 7 and the valve seat 8 enables a more uniform fuel distribution, whereby the fuel preparation device is additionally improved.

Besonders kostengünstig und maßgenau sind durch Prägen Führungszy­ linder 7 und/oder Ventilsitz 8 und/oder die Drallnuten 16 im Füh­ rungszylinder 7 im Ventilsitzkörper 5 in ihrer endgültigen Form her­ stellbar. Das Prägen erfolgt dabei in bekannter Weise mittels ent­ sprechend gestalteter Prägewerkzeuge.Particularly inexpensive and dimensionally precise by embossing Guide cylinder 7 and / or valve seat 8 and / or the swirl grooves 16 in the guide cylinder 7 in the valve seat body 5 in their final form. The embossing is carried out in a known manner by means of appropriately designed embossing tools.

Claims (5)

1. Elektromagnetisch betätigbares Kraftstoffeinspritzventil (1) mit einem Ventilgehäuse (3), einem Ventilsitzkörper (5) mit einem Füh­ rungszylinder (7), in den ein Ventilschließglied (10) ragt, das durch Aufliegen an oder Abheben von einem ebenfalls im Ventilsitz­ körper (5) vorgesehenen Ventilsitz (8) den Kraftstoffstrom zu wenig­ stens einer Austrittsöffnung (9) freigibt oder unterbricht, dadurch gekennzeichnet, daß der Ventilsitzkörper (5) außer dem Führungszy­ linder (7) und dem Ventilsitz (8) auch die wenigstens eine Aus­ trittsöffnung (9) enthält.1. Electromagnetically actuated fuel injection valve ( 1 ) with a valve housing ( 3 ), a valve seat body ( 5 ) with a guide cylinder ( 7 ) into which a valve closing member ( 10 ) protrudes, which by lying on or lifting off a body in the valve seat ( 5 ) provided valve seat ( 8 ) releases or interrupts the fuel flow to at least one outlet opening ( 9 ), characterized in that the valve seat body ( 5 ) in addition to the guide cylinder ( 7 ) and the valve seat ( 8 ) also the at least one outlet opening ( 9 ) contains. 2. Kraftstoffeinspritzventil nach Anspruch 1, dadurch gekennzeich­ net, daß in der Wand des Führungszylinders (7) Drallnuten (16) vorgesehen sind.2. Fuel injection valve according to claim 1, characterized in that swirl grooves ( 16 ) are provided in the wall of the guide cylinder ( 7 ). 3. Kraftstoffeinspritzventil nach Anspruch 1 oder 2, dadurch gekenn­ zeichnet, daß im Ventilsitzkörper (5) zwischen Führungszylinder (7) und Ventilsitz (8) eine umlaufende Nut (22) vorgesehen ist.3. Fuel injection valve according to claim 1 or 2, characterized in that a circumferential groove ( 22 ) is provided in the valve seat body ( 5 ) between the guide cylinder ( 7 ) and valve seat ( 8 ). 4. Kraftstoffeinspritzventil nach Anspruch 2 oder 3, dadurch gekenn­ zeichnet, daß der Führungszylinder (7) und/oder der Ventilsitz (8) und/oder die Drallnuten (16) im Ventilsitzkörper (5) durch Prägen hergestellt sind. 4. Fuel injection valve according to claim 2 or 3, characterized in that the guide cylinder ( 7 ) and / or the valve seat ( 8 ) and / or the swirl grooves ( 16 ) in the valve seat body ( 5 ) are made by stamping. 5. Kraftstoffeinspritzventil nach Anspruch 1, dadurch gekennzeich­ net, daß das Ventilgehäuse (3) den Ventilsitzkörper (5) mittels einer Schweißverbindung trägt.5. Fuel injection valve according to claim 1, characterized in that the valve housing ( 3 ) carries the valve seat body ( 5 ) by means of a welded connection.
DE3939093A 1989-11-25 1989-11-25 ELECTROMAGNETICALLY ACTUABLE FUEL INJECTION VALVE Withdrawn DE3939093A1 (en)

Priority Applications (13)

Application Number Priority Date Filing Date Title
DE3939093A DE3939093A1 (en) 1989-11-25 1989-11-25 ELECTROMAGNETICALLY ACTUABLE FUEL INJECTION VALVE
KR1019910700769A KR0172131B1 (en) 1989-11-25 1990-10-12 Electronically operated fuel injection valve
JP51354290A JP3167321B2 (en) 1989-11-25 1990-10-12 Electromagnetically operable fuel injection valve
EP90914674A EP0455758B1 (en) 1989-11-25 1990-10-12 Electromagnetically operated fuel-injection valve
PCT/DE1990/000775 WO1991008392A1 (en) 1989-11-25 1990-10-12 Electromagnetically operated fuel-injection valve
ES90914674T ES2050457T3 (en) 1989-11-25 1990-10-12 ELECTROMAGNETICALLY ACTIONABLE FUEL INJECTION VALVE.
BR909007081A BR9007081A (en) 1989-11-25 1990-10-12 FUEL INJECTION VALVE, ELECTROMAGNETICALLY OPERABLE
AU65151/90A AU635785B2 (en) 1989-11-25 1990-10-12 Electromagnetically operated fuel-injection valve
DE90914674T DE59004626D1 (en) 1989-11-25 1990-10-12 ELECTROMAGNETICALLY ACTUABLE FUEL INJECTION VALVE.
HU907635A HU209966B (en) 1989-11-25 1990-11-23 Fuel-injecting valve operated electromagnetically
CS905835A CZ279368B6 (en) 1989-11-25 1990-11-23 Electromagnetically controlled fuel injector
SU915001118A RU2023900C1 (en) 1989-11-25 1991-07-24 Electromagnet valve for fuel injection
US07/989,720 US5285969A (en) 1989-11-25 1992-12-14 Electromagnetically operated fuel injection valve

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE3939093A DE3939093A1 (en) 1989-11-25 1989-11-25 ELECTROMAGNETICALLY ACTUABLE FUEL INJECTION VALVE

Publications (1)

Publication Number Publication Date
DE3939093A1 true DE3939093A1 (en) 1991-05-29

Family

ID=6394224

Family Applications (2)

Application Number Title Priority Date Filing Date
DE3939093A Withdrawn DE3939093A1 (en) 1989-11-25 1989-11-25 ELECTROMAGNETICALLY ACTUABLE FUEL INJECTION VALVE
DE90914674T Expired - Fee Related DE59004626D1 (en) 1989-11-25 1990-10-12 ELECTROMAGNETICALLY ACTUABLE FUEL INJECTION VALVE.

Family Applications After (1)

Application Number Title Priority Date Filing Date
DE90914674T Expired - Fee Related DE59004626D1 (en) 1989-11-25 1990-10-12 ELECTROMAGNETICALLY ACTUABLE FUEL INJECTION VALVE.

Country Status (10)

Country Link
EP (1) EP0455758B1 (en)
JP (1) JP3167321B2 (en)
KR (1) KR0172131B1 (en)
AU (1) AU635785B2 (en)
BR (1) BR9007081A (en)
CZ (1) CZ279368B6 (en)
DE (2) DE3939093A1 (en)
ES (1) ES2050457T3 (en)
HU (1) HU209966B (en)
WO (1) WO1991008392A1 (en)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4231448C1 (en) * 1992-09-19 1993-10-21 Bosch Gmbh Robert Electromagnetic fuel injection valve for ic engine - with conical taper and radial edge downstream of valve seating surface for providing fine fuel vapour mist
US5314122A (en) * 1992-11-20 1994-05-24 Robert Bosch Gmbh Fuel injection valve
WO2000001942A1 (en) * 1998-07-01 2000-01-13 Robert Bosch Gmbh Fuel injector
WO2002031353A1 (en) * 2000-10-13 2002-04-18 Robert Bosch Gmbh Fuel injection valve
DE10050752B4 (en) * 2000-10-13 2005-06-02 Robert Bosch Gmbh Fuel injection valve with a swirl-generating element
DE10360706A1 (en) * 2003-12-19 2005-07-14 Aweco Appliance Systems Gmbh & Co. Kg Valve and method for manufacturing a valve
DE10049033B4 (en) * 2000-10-04 2005-08-04 Robert Bosch Gmbh Fuel injector
DE4141930B4 (en) * 1991-12-19 2007-02-08 Robert Bosch Gmbh Electromagnetically actuated injection valve
DE10136705B4 (en) * 2000-07-28 2009-02-05 Nippon Soken, Inc., Nishio-shi Solenoid valve

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19724091A1 (en) * 1997-06-07 1998-12-10 Bosch Gmbh Robert Valve

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Publication number Priority date Publication date Assignee Title
CA1132417A (en) * 1979-01-29 1982-09-28 Gary L. Casey Electromagnetic fuel injector
US4483485A (en) * 1981-12-11 1984-11-20 Aisan Kogyo kabuskiki Kaisha Electromagnetic fuel injector
US4660770A (en) * 1985-09-25 1987-04-28 United Technologies Diesel Systems, Inc. Electromagnetic fuel injector
KR930004967B1 (en) * 1988-07-13 1993-06-11 가부시기가이샤 히다찌세이사꾸쇼 Electronic fuel injector
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

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4141930B4 (en) * 1991-12-19 2007-02-08 Robert Bosch Gmbh Electromagnetically actuated injection valve
DE4231448C1 (en) * 1992-09-19 1993-10-21 Bosch Gmbh Robert Electromagnetic fuel injection valve for ic engine - with conical taper and radial edge downstream of valve seating surface for providing fine fuel vapour mist
US5314122A (en) * 1992-11-20 1994-05-24 Robert Bosch Gmbh Fuel injection valve
DE4239110A1 (en) * 1992-11-20 1994-05-26 Bosch Gmbh Robert Fuel injector
WO2000001942A1 (en) * 1998-07-01 2000-01-13 Robert Bosch Gmbh Fuel injector
DE10136705B4 (en) * 2000-07-28 2009-02-05 Nippon Soken, Inc., Nishio-shi Solenoid valve
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ES2050457T3 (en) 1994-05-16
KR0172131B1 (en) 1999-03-20
KR920701659A (en) 1992-08-12
JPH04503097A (en) 1992-06-04
CZ583590A3 (en) 1993-06-16
HUT59739A (en) 1992-06-29
EP0455758A1 (en) 1991-11-13
HU907635D0 (en) 1991-06-28
HU209966B (en) 1995-01-30
AU635785B2 (en) 1993-04-01
JP3167321B2 (en) 2001-05-21
AU6515190A (en) 1991-06-26
CZ279368B6 (en) 1995-04-12
WO1991008392A1 (en) 1991-06-13
DE59004626D1 (en) 1994-03-24
EP0455758B1 (en) 1994-02-16
BR9007081A (en) 1991-11-26

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