DE3516323A1 - INJECTION VALVE - Google Patents

INJECTION VALVE

Info

Publication number
DE3516323A1
DE3516323A1 DE19853516323 DE3516323A DE3516323A1 DE 3516323 A1 DE3516323 A1 DE 3516323A1 DE 19853516323 DE19853516323 DE 19853516323 DE 3516323 A DE3516323 A DE 3516323A DE 3516323 A1 DE3516323 A1 DE 3516323A1
Authority
DE
Germany
Prior art keywords
valve seat
valve
spring
closing element
closing
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Withdrawn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
DE19853516323
Other languages
German (de)
Inventor
Eckhart Dipl.-Ing. Kern
Jürgen Dipl.-Ing. 6232 Bad Soden Luft
Reiner Dipl.-Ing. 6238 Hofheim Weingärtner
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.)
Mannesmann VDO AG
Original Assignee
Mannesmann VDO AG
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=6270003&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=DE3516323(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Mannesmann VDO AG filed Critical Mannesmann VDO AG
Priority to DE19853516323 priority Critical patent/DE3516323A1/en
Priority to AT86102636T priority patent/ATE36189T1/en
Priority to EP86102636A priority patent/EP0200866B1/en
Priority to DE8686102636T priority patent/DE3660457D1/en
Priority to JP61102236A priority patent/JPS61255266A/en
Publication of DE3516323A1 publication Critical patent/DE3516323A1/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Withdrawn legal-status Critical Current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
    • F02M61/20—Closing valves mechanically, e.g. arrangements of springs or weights or permanent magnets; Damping of valve lift
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • 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
    • F02M51/0635—Injectors peculiar thereto with means directly operating the valve needle using electromagnetic operating means characterised by arrangement of mobile armatures having a plate-shaped or undulated armature not entering the winding
    • F02M51/0642—Injectors peculiar thereto with means directly operating the valve needle using electromagnetic operating means characterised by arrangement of mobile armatures having a plate-shaped or undulated armature not entering the winding the armature having a valve attached thereto
    • F02M51/0646—Injectors peculiar thereto with means directly operating the valve needle using electromagnetic operating means characterised by arrangement of mobile armatures having a plate-shaped or undulated armature not entering the winding the armature having a valve attached thereto the valve being a short body, e.g. sphere or cube
    • F02M51/065—Injectors peculiar thereto with means directly operating the valve needle using electromagnetic operating means characterised by arrangement of mobile armatures having a plate-shaped or undulated armature not entering the winding the armature having a valve attached thereto the valve being a short body, e.g. sphere or cube the valve being spherical or partly spherical
    • 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

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

1. Electromagnetically operable fuel injection valve for internal-combustion engines, having a magnet winding, a magnet core and a flat armature (12), which with the magnet core forms a magnetic circuit, an annular valve seat (2), a valve element (6), which is connected to the flat armature (12), provides a three-dimensional seal and is pressed by a spring (7), whose diameter is smaller than the diameter of the valve seat (2), in the dead state of the magnet winding (9) with sealing effect against the valve seat (2) and thereby penetrates the plane defined by the valve seat (2), characterized in that the spring (7) acts on a plane of the valve element (6) whose distance from the flat armature (12) is greater than the distance of the plane defined by the valve seat (2) from the flat armature (12).

Description

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- Leerseite - - blank page -

Claims (2)

1 2 Patentansprüche ter Weise ein Anziehen des Flachankers 12. Dadurch wird das Ventil geöffnet, so daß der Kraftstoff über die1 2 claims ter way a tightening of the flat armature 12. This opens the valve so that the fuel on the 1. Einspritzventil, insbesondere für Kraftstoff-Ein- Bohrung 5 ausströmen kann.1. Injection valve, in particular for fuel inlet bore 5, can flow out. Spritzanlagen von Brennkraftmaschinen mit einer Zur Zentrierung des Flachankers 12 und des Schließ-Spray systems of internal combustion engines with a centering of the flat armature 12 and the closing Magnetwicklung, einem Magnetkern, einem mit ei- 5 gliedes 6 ist eine Membran 13 vorgesehen. Die Mem-Magnet winding, a magnetic core, one with a member 6, a membrane 13 is provided. The meme nem Schließglied verbundenem Flachanker, einem bran ist an ihrem äußeren Rand zwischen das Gehäuse 1A flat armature connected to a closing element, a bran, is on its outer edge between the housing 1 Ventilsitz und einer Feder, welche das Schließglied und ein ringförmiges Abstandselement 14 eingespannt,Valve seat and a spring which clamps the closing member and an annular spacer element 14, gegen den Ventilsitz drückt, dadurch gekennzeich- Da der Masseschwerpunkt des aus dem Anker 12 undpresses against the valve seat, thereby marked- As the center of gravity of the armature 12 and net, daß die Federkraft auf eine Ebene innerhalb dem Schließglied 6 bestehenden Teils nicht mit demnet that the spring force on a plane within the closing member 6 does not exist with the part des Schließgliedes (6) wirkt, welche nicht wesent- io Mittelpunkt des kugelabschnittförmigen Schließgliedesof the closing element (6) acts, which is not essentially the center of the spherical segment-shaped closing element lieh von der Ebene des Ventilsitzes (2) in Richtung übereinstimmt, kommt es bei starken Erschütterungenborrowed from the plane of the valve seat (2) in the direction, it comes with strong vibrations auf den Flachanker (12) abweicht. zu einer Verdrehung des Schließgliedes und des Ankerson the flat anchor (12) deviates. to a rotation of the closing element and the armature 2. Einspritzventil nach Anspruch 1, dadurch ge- 12. Dieses kann bei Abweichungen von der Rundheit kennzeichnet, daß die Ebene, auf die die Feder (7) des Schließgliedes 6 — beispielsweise infolge von Abwirkt, weiter vom Anker (12) entfernt ist als die 15 nutzungen — zu einer mangelnden Dichtheit des Ventils Ebene des Ventilsitzes. führen.2. Injection valve according to claim 1, characterized in that this can occur in the event of deviations from roundness indicates that the plane on which the spring (7) of the closing element 6 - for example as a result of is further away from the armature (12) than the 15 uses - to a lack of tightness of the valve Level of the valve seat. to lead. Bei dem erfindungsgemäßen Ventil wird nun, wie inIn the valve according to the invention, as in Beschreibung Fig. 2 dargestellt, gegenüber dem bekannten EinspritzDescription of Fig. 2 shown, compared to the known injection ventil die Abstützebene für die Feder 7 weiter nachvalve the support level for the spring 7 further Die Erfindung bezieht sich auf ein Einspritzventil, ins- 20 unten verlagert. Dadurch übt die Feder eine stabilisiebesondere für Kraftstoff-Einspritzanlagen von Brenn- rende Wirkung bezüglich möglicher durch Erschüttekraftmaschinen mit einer Magnetwicklung, einem Ma- rungen bedingter Verschwenkungen des Schließgliedes gnetkern, einem mit einem Schließglied verbundenem 6 aus. Im übrigen kann das erfindungsgemäße Einspritz-Flachanker, einem Ventilsitz und einer Feder, welche ventil ähnlich wie die bekannten Einspritzventile aufgedas Schließglied gegen den Ventilsitz drückt. 25 baut sein. Der Verlagerung der Abstützebene nach un-The invention relates to an injection valve, shifted ins- 20 below. As a result, the spring exercises a special stabilization for fuel injection systems of burning effect with regard to possible vibratory engines with a magnet winding, a marking of the pivoting of the closing element gnetkern, a 6 connected to a closing element. In addition, the injection flat anchor according to the invention, a valve seat and a spring, which valve similar to the known injection valves Closing member presses against the valve seat. 25 builds. The shift of the support level towards Bei derartigen bekannten Einspritzventilen wird zwar ten können durch konstruktive Gegebenheiten — beider Flachanker und das Schließglied sowohl in axialer spielsweise Grenzen bezüglich der Wandstärke des als auch in radialer Richtung durch eine Membran zen- Schließelements, bezüglich der Federkraft und des datriert, es kann jedoch bei den bekannten Ventilen vor- mit verbundenen Durchmessers der Feder — Grenzen kommen, daß das Schließglied nicht einwandfrei auf 30 gesetzt sein. Je nach vorliegenden weiteren Gegebendem Ventilsitz zu liegen kommt. heiten kann es bereits zur Lösung der erfindungsgemä-In such known injection valves, although th can be due to structural factors - both Flat anchor and the locking member both in axial for example limits with respect to the wall thickness of the as well as in the radial direction through a membrane zen- closing element, with regard to the spring force and the dated, However, with the known valves there can be limits with the associated diameter of the spring come that the locking member is not properly set to 30. Depending on the other given Valve seat comes to rest. it can already lead to the solution of the Aufgabe der vorliegenden Erfindung ist es, die Nach- ßen Aufgabe beitragen, wenn die Abstützebene etwa in teile der bekannten Einspritzventile zu vermeiden. der Ebene des Ventilsitzes liegt.The object of the present invention is to contribute to the task when the support plane is approximately in to avoid parts of the known injectors. is the level of the valve seat. Diese Aufgabe wird erfindungsgemäß dadurch gelöst,
daß die Federkraft auf eine Ebene innerhalb des 35
Schließgliedes wirkt, welche nicht wesentlich von der
Ebene des Ventilsitzes in Richtung auf den Flachanker
abweicht. Durch die Erfindung wird ein Verschwenken
des Schließglieds aus seiner zum Ventilsitz koaxialen
Lage während der Öffnungs- und Schließbewegungen 40
aufgrund des weit vom Ventilsitz entfernten Massenschwerpunkts des Schließglieds vermieden. Gemäß einer Weiterbildung der Erfindung liegt die Abstützebene
der Feder weiter als die Ebene des Ventilsitzes vom
Anker entfernt. 45According to the invention, this object is achieved by
that the spring force on a level within the 35
Closing member acts, which is not significantly different from the
Level of the valve seat in the direction of the flat armature
deviates. The invention enables pivoting
of the closing member from its coaxial to the valve seat
Position during the opening and closing movements 40
avoided due to the center of gravity of the closing element, which is far from the valve seat. According to a further development of the invention, the support plane lies
the spring farther than the plane of the valve seat from
Anchor removed. 45 Die Erfindung läßt zahlreiche Ausführungsformen zu.
Eine davon ist schematisch in Figuren dargestellt und
nachfolgend beschrieben. Es zeigt:The invention allows numerous embodiments.
One of them is shown schematically in figures and
described below. It shows: Fig. 1 Teile eines bekannten Einspritzventils und Fig. 1 parts of a known injection valve and Fig. 2 Teile eines erfindungsgemäßen Einspritzven- 50
tils. .2 parts of an injection valve 50 according to the invention
tils. . Gleiche Teile sind in den Figuren mit gleichen Bezugszeichen versehen.The same parts are given the same reference symbols in the figures Mistake. In Fig. 1 sind die zur Erläuterung der Erfindung notwendigen Teile eines bekannten Einspritzventils darge- 55
stellt. In einem Gehäuse 1 findet sich ein den Ventilsitz 2
tragender Körper 3 mit einer Aufbereitungsbohrung 4,
in welche der Kraftstoff über die Bohrungen 5 gelangt.In FIG. 1, the parts of a known injection valve necessary to explain the invention are shown
represents. A valve seat 2 is located in a housing 1
load-bearing body 3 with a processing bore 4,
into which the fuel arrives via the bores 5. Das Schließglied 6 des Ventils ist kugelabschnittförmig und liegt mit einer Kreislinie am Ventilsitz auf. Da- 60
zu wird es von einer Feder 7 gegen den Ventilsitz gedrückt. Die Feder 7 ist in einem vom Schließglied abgewandten Teil 8 gelagert. Zum Öffnen des Ventils wird
die Spule 9, welche sieh in einem Spulenträger 10 befindet, mit elektrischem Strom beaufschlagt. Das sich da- 65
durch aufbauende magnetische Feld wird von einem als
Schalenkern ausgebildeten Magnetkern 11 und einem
Zwischenring 15 geleitet und bewirkt in an sich bekann-The closing member 6 of the valve is spherical segment-shaped and rests with a circular line on the valve seat. There- 60
to it is pressed by a spring 7 against the valve seat. The spring 7 is mounted in a part 8 facing away from the closing element. To open the valve is
the coil 9, which is located in a coil carrier 10, has an electric current applied to it. The 65
by a building up magnetic field is called by a
Cup core formed magnetic core 11 and one
Intermediate ring 15 guided and causes in itself known
DE19853516323 1985-05-07 1985-05-07 INJECTION VALVE Withdrawn DE3516323A1 (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
DE19853516323 DE3516323A1 (en) 1985-05-07 1985-05-07 INJECTION VALVE
AT86102636T ATE36189T1 (en) 1985-05-07 1986-02-28 INJECTOR.
EP86102636A EP0200866B1 (en) 1985-05-07 1986-02-28 Injection valve
DE8686102636T DE3660457D1 (en) 1985-05-07 1986-02-28 Injection valve
JP61102236A JPS61255266A (en) 1985-05-07 1986-05-06 Injection valve

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19853516323 DE3516323A1 (en) 1985-05-07 1985-05-07 INJECTION VALVE

Publications (1)

Publication Number Publication Date
DE3516323A1 true DE3516323A1 (en) 1986-11-13

Family

ID=6270003

Family Applications (2)

Application Number Title Priority Date Filing Date
DE19853516323 Withdrawn DE3516323A1 (en) 1985-05-07 1985-05-07 INJECTION VALVE
DE8686102636T Expired DE3660457D1 (en) 1985-05-07 1986-02-28 Injection valve

Family Applications After (1)

Application Number Title Priority Date Filing Date
DE8686102636T Expired DE3660457D1 (en) 1985-05-07 1986-02-28 Injection valve

Country Status (4)

Country Link
EP (1) EP0200866B1 (en)
JP (1) JPS61255266A (en)
AT (1) ATE36189T1 (en)
DE (2) DE3516323A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4108758A1 (en) * 1991-03-18 1992-09-24 Kloeckner Humboldt Deutz Ag SOLENOID VALVE FOR A FUEL INJECTOR

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10150712A1 (en) * 2001-10-13 2003-04-17 Bosch Gmbh Robert Fuel injection valve has annular sealing seat as part of valve seat surface with gradual concave curve

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3118898A1 (en) * 1981-05-13 1982-12-02 Robert Bosch Gmbh, 7000 Stuttgart ELECTROMAGNETICALLY ACTUABLE VALVE, ESPECIALLY FUEL INJECTION VALVE FOR FUEL INJECTION SYSTEMS
JPS5862358A (en) 1981-10-09 1983-04-13 Nippon Denso Co Ltd Electro-magnetic fuel injection valve
DE3207918A1 (en) * 1982-03-05 1983-09-15 Robert Bosch Gmbh, 7000 Stuttgart ELECTROMAGNETICALLY ACTUABLE VALVE
CA1207213A (en) 1982-05-19 1986-07-08 Wendell D. Johnson Dual valve pressure relief device
EP0102723A1 (en) * 1982-07-29 1984-03-14 LUCAS INDUSTRIES public limited company Plate type fuel injector

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4108758A1 (en) * 1991-03-18 1992-09-24 Kloeckner Humboldt Deutz Ag SOLENOID VALVE FOR A FUEL INJECTOR
DE4108758C2 (en) * 1991-03-18 2000-05-31 Deutz Ag Solenoid valve for a fuel injector

Also Published As

Publication number Publication date
DE3660457D1 (en) 1988-09-08
EP0200866B1 (en) 1988-08-03
ATE36189T1 (en) 1988-08-15
JPS61255266A (en) 1986-11-12
EP0200866A1 (en) 1986-11-12

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Legal Events

Date Code Title Description
8139 Disposal/non-payment of the annual fee