DE10257896A1 - Valve body with elongated valve stem for fuel injector used in internal combustion engine, has armature near top attracted by electromagnetic coil and incorporating through-passage for fuel - Google Patents
Valve body with elongated valve stem for fuel injector used in internal combustion engine, has armature near top attracted by electromagnetic coil and incorporating through-passage for fuel Download PDFInfo
- Publication number
- DE10257896A1 DE10257896A1 DE2002157896 DE10257896A DE10257896A1 DE 10257896 A1 DE10257896 A1 DE 10257896A1 DE 2002157896 DE2002157896 DE 2002157896 DE 10257896 A DE10257896 A DE 10257896A DE 10257896 A1 DE10257896 A1 DE 10257896A1
- Authority
- DE
- Germany
- Prior art keywords
- flange
- anchor
- gap
- valve
- valve needle
- 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- Withdrawn
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M51/00—Fuel-injection apparatus characterised by being operated electrically
- F02M51/06—Injectors peculiar thereto with means directly operating the valve needle
- F02M51/061—Injectors peculiar thereto with means directly operating the valve needle using electromagnetic operating means
- F02M51/0625—Injectors peculiar thereto with means directly operating the valve needle using electromagnetic operating means characterised by arrangement of mobile armatures
- F02M51/0664—Injectors peculiar thereto with means directly operating the valve needle using electromagnetic operating means characterised by arrangement of mobile armatures having a cylindrically or partly cylindrically shaped armature, e.g. entering the winding; having a plate-shaped or undulated armature entering the winding
- F02M51/0685—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 and the valve being allowed to move relatively to each other or not being attached to each other
-
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M61/00—Fuel-injectors not provided for in groups F02M39/00 - F02M57/00 or F02M67/00
- F02M61/16—Details not provided for in, or of interest apart from, the apparatus of groups F02M61/02 - F02M61/14
- F02M61/168—Assembling; Disassembling; Manufacturing; Adjusting
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M2200/00—Details of fuel-injection apparatus, not otherwise provided for
- F02M2200/30—Fuel-injection apparatus having mechanical parts, the movement of which is damped
- F02M2200/306—Fuel-injection apparatus having mechanical parts, the movement of which is damped using mechanical 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
- F02M2200/00—Details of fuel-injection apparatus, not otherwise provided for
- F02M2200/90—Selection of particular materials
- F02M2200/9015—Elastomeric or plastic materials
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Manufacturing & Machinery (AREA)
- Fuel-Injection Apparatus (AREA)
Abstract
Description
Stand der TechnikState of technology
Die Erfindung geht aus von einem Verfahren zur Herstellung eines Brennstoffeinspritzventils nach der Gattung des Anspruchs 1 und von einem Brennstoffeinspritzventil nach der Gattung des Anspruchs 8.The invention is based on one Method of manufacturing a fuel injector according to the Genus of claim 1 and of a fuel injector according to the preamble of claim 8.
Beispielsweise ist aus der
Bei herkömmlichen Herstellungsverfahren für das zuvor beschriebene oder andere gattungsgemäße Brennstoffeinspritzventile, wird zunächst einer der beiden Anschlagkörper mit der Ventilnadel verschweißt, dann wird der Spalt, beispielsweise mit Hilfe einer Lehre, eingestellt und der andere Anschlagkörper unter Beibehaltung des mit beispielsweise einer Lehre festgelegten Spaltes mit der Ventilnadel verschweißt.In conventional manufacturing processes for the above described or other generic fuel injection valves, will first one of the two stop bodies welded to the valve needle, then the gap is set, for example with the help of a gauge and the other stop body while maintaining that determined with, for example, an apprenticeship Gap welded to the valve needle.
Nachteilig bei dem beschriebenen Herstellungsverfahren bzw. dem aus der obengenannten Druckschrift bekannten durch das beschriebene Herstellungsverfahren hergestellten Brennstoffeinspritzventil ist insbesondere, daß die Herstellung des Brennstoffeinspritzventils und des Spaltes nur mit einer Vielzahl von Herstellungsschritten, Werkzeugen und Bauteilen möglich ist und zudem die dadurch erreichbaren Herstellungstoleranzen für eine genaue Einstellung der dynamischen Eigenschaften des Brennstoffeinspritzventils nur unzureichend erzielt werden können.A disadvantage of the described Manufacturing process or that from the above publication known manufactured by the described manufacturing process Fuel injector is particular that the manufacture of the fuel injector and the gap only with a multitude of manufacturing steps, Tools and components possible and also the manufacturing tolerances that can be achieved for an exact setting the dynamic properties of the fuel injector only can be achieved insufficiently.
Das erfindungsgemäße Herstellungsverfahren zur Herstellung des Brennstoffeinspritzventils mit den kennzeichnenden Merkmalen des Anspruchs 1 hat demgegenüber den Vorteil, daß der Spalt, welcher das Spiel des Magnetankers zwischen den Flanschen festlegt, mit sehr geringen Herstellungstoleranzen fertigbar ist. Die dabei benötigte Anzahl von Herstellungsschritten ist deutlich reduziert. Die Herstellungsschritte selbst sind deutlich einfacher und genauer ausführbar.The manufacturing method according to the Manufacture of the fuel injector with the characteristic In contrast, features of claim 1 have the advantage that the gap, which determines the play of the magnetic armature between the flanges, can be manufactured with very small manufacturing tolerances. The one there needed The number of manufacturing steps is significantly reduced. The manufacturing steps themselves are much easier and more precise to carry out.
Das erfindungsgemäße Brennstoffeinspritzventil mit den kennzeichnenden Merkmalen des Anspruchs 8 hat den Vorteil, daß die dynamischen Eigenschaften des Brennstoffeinspritzventils besonders genau und einfach eingestellt werden können. Insbesondere kann die Zeitspanne zwischen der Aktivierung des Magnetkreises und dem Auftreffen des Magnetankers auf den ersten Flansch und damit die Zeitspanne, die zwischen der Aktivierung des Magnetkreises und dem Öffnungsbeginn bzw. dem Schließbeginn des Brennstoffeinspritzventils vergeht, genau eingestellt werden.The fuel injector according to the invention with the characterizing features of claim 8 has the advantage that the dynamic properties of the fuel injector in particular can be set precisely and easily. In particular, the Time between the activation of the magnetic circuit and the impact of the magnet armature on the first flange and thus the time span, between the activation of the magnetic circuit and the start of opening or the start of closing of the fuel injector passes, can be set precisely.
Durch die in den Unteransprüchen aufgeführten Maßnahmen sind vorteilhafte Weiterentwicklungen des im Anspruch 1 angegebenen Herstellungsverfahrens zur Herstellung eines Brennstoffeinspritzventils bzw. des erfindungsgemäßen Brennstoffeinspritzventils gemäß Anspruch 8 möglich.By the measures listed in the subclaims are advantageous developments of the specified in claim 1 Manufacturing method for manufacturing a fuel injector or the fuel injector according to the invention according to claim 8 possible.
Durch die Erzeugung des Spaltes aus einem einstückig mit dem zweiten Flansch ausgeführten Anker bzw. einem mit dem ersten Flansch einstückig ausgeführten Anker wird das Herstellungsverfahren weiter vereinfacht. Fehlerursachen, die beispielsweise durch Fremdkörper zwischen den Flanschen und dem Anker oder Unebenheiten an den Bauteilen oder Werkzeugen bzw. Meßwerkzeugen gegeben sind, werden vermieden.By creating the gap one piece anchor designed with the second flange or an anchor made in one piece with the first flange, the manufacturing process continues simplified. Causes of errors caused, for example, by foreign bodies between the flanges and the anchor or unevenness on the components or tools or measuring tools are avoided.
Von Vorteil ist außerdem, daß der Spalt in der Nähe einer Ausnehmung auf der Ventilnadel und/oder einer Ausnehmung an der der Ventilnadel zugewandten Seite des Ankers oder einer der Flansche erzeugt wird. Dadurch kann die Erzeugung des Spalts sicher so durchgeführt werden, daß die Ventilnadel nicht unzulässig bearbeitet oder bei der Herstellung des Spalts beschädigt wird. Weiterhin kann die Ausnehmung zur Positionierung des Ankers oder einer der Flansche herangezogen werden.It is also an advantage that the Gap nearby a recess on the valve needle and / or a recess the side of the armature facing the valve needle or one of the Flanges is produced. This can ensure the generation of the gap done so be that the Valve needle not prohibited processed or damaged in the manufacture of the gap. Furthermore, the recess for positioning the armature or a the flanges can be used.
In einer weiteren Weiterbildung des erfindungsgemäßen Herstellungsverfahrens werden die Fügeverbindungen zwischen den Flanschen und der Ventilnadel durch Löten, Schweißen oder Laserschweißen hergestellt. Dadurch sind besonders feste und wärmebeständige Fügeverbindungen herstellbar die sich zudem noch besonders vorteilhaft in den Herstellungsprozeß einfügen lassen.In a further development of the Manufacturing method according to the invention become the joint connections between the flanges and the valve needle by soldering, welding or laser welding manufactured. As a result, particularly firm and heat-resistant joint connections can be produced can also be particularly advantageously inserted into the manufacturing process.
Vorteilhaft ist zudem, wenn die Verfahrensschritte an hohlzylindrisch geformten Flanschen und hohlzylindrisch geformtem Anker ausgeführt werden. An diesen so geformten Bauteilen lassen sich die Verfahrensschritte, insbesondere das spielfreie axiale Zusammensetzen und das Positionieren des Ankers und des ersten und zweiten Flansches, besonders einfach ausführen. Zudem sind hohlzylindrisch geformte Bauteile einfach und genau herzustellen.It is also advantageous if the process steps on hollow cylindrical flanges and hollow cylindrical shaped Anchor executed become. The process steps, in particular the play-free axial assembly and positioning the anchor and the first and second flange, particularly simple To run. In addition, hollow cylindrical components are easy and precise to manufacture.
Besonders vorteilhaft weitergebildet werden kann das erfindungsgemäße Herstellungsverfahren dadurch, daß die Erzeugung des Spaltes durch einen Laserstrahl erfolgt. Durch die Bearbeitung eines Bauteils mittels eines Laserstrahls wird die Erwärmung des Bauteils, insbesondere an der Bearbeitungsstelle, minimiert. Da sich Durchmesser von Laserstrahlen sehr klein, im Verlauf sehr kontinuierlich und mit sehr geringen Toleranzen erzeugen lassen, kann auch das jeweils damit zu bearbeitende Bauteil sehr genau und mit geringen Herstellungstoleranzen gefertigt werden.Be further developed particularly advantageously can the manufacturing method according to the invention in that the gap is generated by a laser beam. The processing of a component by means of a laser beam minimizes the heating of the component, in particular at the processing point. Since the diameter of laser beams can be generated very small, very continuously in the course and with very small tolerances, the component to be machined with it can also be manufactured very precisely and with low manufacturing tolerances.
Außerdem ist vorteilhaft, wenn die Seite der Flansche und des Ankers, an welcher der Spalt erzeugt wurde, durch die Erzeugung, beispielsweise durch einen Laserstrahl, gehärtet ist. Dadurch vermindert sich der Verschleiß über der Lebensdauer des Brennstoffeinspritzventils in diesem Bereich, wodurch die Breite des Spalts konstant bleibt. Die dynamischen Eigenschaften der Brennstoffzumessung des erfindungsgemäßen Brennstoffeinspritzventils bleiben dadurch konstant.It is also advantageous if the side of the flanges and the anchor where the gap creates was generated, for example by a laser beam, hardened is. This reduces wear over the life of the fuel injector in this area, whereby the width of the gap remains constant. The dynamic properties of the fuel metering of the fuel injection valve according to the invention remain thereby constant.
Ein Ausführungsbeispiel der Erfindung ist in der Zeichnung vereinfacht dargestellt und in der nachfolgenden Beschreibung näher erläutert. Es zeigen:An embodiment of the invention is shown in simplified form in the drawing and in the following Description closer explained. Show it:
Beschreibung des Ausführungsbeispielsdescription of the embodiment
Nachfolgend wird ein Ausführungsbeispiel der Erfindung beispielhaft beschrieben. Übereinstimmende Bauteile sind dabei in allen Figuren mit übereinstimmenden Bezugszeichen versehen.An embodiment of the Invention described by way of example. Matching components are doing so in all figures with matching Provide reference numerals.
Ein in
Das Brennstoffeinspritzventil
Die Ventilnadel
In der Ventilnadelführung 14,
im Anker
An der abspritzseitigen Seite des
Ankers
Im Ruhezustand des Brennstoffeinspritzventils
Gleichzeitig wird ein in
Das in
Wird der Spulenstrom abgeschaltet,
fällt der Anker
Zur Erzeugung des Spaltes
Der Spalt
Eine Ausnehmung
Die Erfindung ist nicht auf die dargestellten Ausführungsbeispiele beschränkt und z. B. auch für nach außen öffnende Brennstoffeinspritzventile verwendbar.The invention is not based on the illustrated embodiments limited and Z. B. also for after outside opening Fuel injectors can be used.
Claims (12)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE2002157896 DE10257896A1 (en) | 2002-12-11 | 2002-12-11 | Valve body with elongated valve stem for fuel injector used in internal combustion engine, has armature near top attracted by electromagnetic coil and incorporating through-passage for fuel |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE2002157896 DE10257896A1 (en) | 2002-12-11 | 2002-12-11 | Valve body with elongated valve stem for fuel injector used in internal combustion engine, has armature near top attracted by electromagnetic coil and incorporating through-passage for fuel |
Publications (1)
Publication Number | Publication Date |
---|---|
DE10257896A1 true DE10257896A1 (en) | 2004-07-01 |
Family
ID=32403774
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE2002157896 Withdrawn DE10257896A1 (en) | 2002-12-11 | 2002-12-11 | Valve body with elongated valve stem for fuel injector used in internal combustion engine, has armature near top attracted by electromagnetic coil and incorporating through-passage for fuel |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE10257896A1 (en) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102009027726A1 (en) | 2009-07-15 | 2011-01-20 | Robert Bosch Gmbh | Injection valve for fluid, particularly for fuel, has housing, actuator, connection piece and connecting plug with integrated plug pins |
EP2436910A1 (en) * | 2010-10-01 | 2012-04-04 | Continental Automotive GmbH | Valve assembly for an injection valve and injection valve |
CN103104389A (en) * | 2011-11-11 | 2013-05-15 | 株式会社京浜 | Electromagnetic type fuel injection valve |
EP2703633A1 (en) | 2012-08-28 | 2014-03-05 | Continental Automotive GmbH | Valve assembly for an injection valve and injection valve |
DE102008057974B4 (en) * | 2008-05-22 | 2014-12-04 | Mitsubishi Electric Corp. | Fuel injection valve |
US10197029B2 (en) | 2015-05-15 | 2019-02-05 | Keihin Corporation | Fuel injection control apparatus |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19849210A1 (en) * | 1998-10-26 | 2000-04-27 | Bosch Gmbh Robert | Fuel injection valve for internal combustion engine fuel injection system has armature movable between two stops, damping spring arranged between second stop and armature |
DE19927900A1 (en) * | 1999-06-18 | 2000-12-21 | Bosch Gmbh Robert | Fuel injection valve for direct injection IC engine has movement of armature limited by opposing stops attached to valve needle one of which is provided by spring element |
DE19950761A1 (en) * | 1999-10-21 | 2001-04-26 | Bosch Gmbh Robert | Fuel injection valve has supporting ring between elastomeric ring and armature that supports elastomeric ring axially near opening of fuel channel in armature and radially on shoulder |
-
2002
- 2002-12-11 DE DE2002157896 patent/DE10257896A1/en not_active Withdrawn
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19849210A1 (en) * | 1998-10-26 | 2000-04-27 | Bosch Gmbh Robert | Fuel injection valve for internal combustion engine fuel injection system has armature movable between two stops, damping spring arranged between second stop and armature |
DE19927900A1 (en) * | 1999-06-18 | 2000-12-21 | Bosch Gmbh Robert | Fuel injection valve for direct injection IC engine has movement of armature limited by opposing stops attached to valve needle one of which is provided by spring element |
DE19950761A1 (en) * | 1999-10-21 | 2001-04-26 | Bosch Gmbh Robert | Fuel injection valve has supporting ring between elastomeric ring and armature that supports elastomeric ring axially near opening of fuel channel in armature and radially on shoulder |
Cited By (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102008057974B4 (en) * | 2008-05-22 | 2014-12-04 | Mitsubishi Electric Corp. | Fuel injection valve |
DE102009027726A1 (en) | 2009-07-15 | 2011-01-20 | Robert Bosch Gmbh | Injection valve for fluid, particularly for fuel, has housing, actuator, connection piece and connecting plug with integrated plug pins |
EP2436910A1 (en) * | 2010-10-01 | 2012-04-04 | Continental Automotive GmbH | Valve assembly for an injection valve and injection valve |
WO2012041597A1 (en) * | 2010-10-01 | 2012-04-05 | Continental Automotive Gmbh | Valve assembly for an injection valve and injection valve |
CN103119283A (en) * | 2010-10-01 | 2013-05-22 | 大陆汽车有限公司 | Valve assembly for an injection valve and injection valve |
CN103119283B (en) * | 2010-10-01 | 2015-07-08 | 大陆汽车有限公司 | Valve assembly for an injection valve and injection valve |
US9528480B2 (en) | 2010-10-01 | 2016-12-27 | Continental Automotive Gmbh | Valve assembly for an injection valve and injection valve |
CN103104389A (en) * | 2011-11-11 | 2013-05-15 | 株式会社京浜 | Electromagnetic type fuel injection valve |
CN103104389B (en) * | 2011-11-11 | 2016-06-29 | 株式会社京浜 | Electro-magneto fuel injector |
DE102012220477B4 (en) | 2011-11-11 | 2021-08-26 | Keihin Corporation | Electromagnetic fuel injector |
EP2703633A1 (en) | 2012-08-28 | 2014-03-05 | Continental Automotive GmbH | Valve assembly for an injection valve and injection valve |
US10197029B2 (en) | 2015-05-15 | 2019-02-05 | Keihin Corporation | Fuel injection control apparatus |
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OM8 | Search report available as to paragraph 43 lit. 1 sentence 1 patent law | ||
8139 | Disposal/non-payment of the annual fee |