DE10331805A1 - Fuel injection valve for internal combustion engines with magnetic coil co-acting with valve needle with resetting spring acting in stop direction - Google Patents
Fuel injection valve for internal combustion engines with magnetic coil co-acting with valve needle with resetting spring acting in stop direction Download PDFInfo
- Publication number
- DE10331805A1 DE10331805A1 DE2003131805 DE10331805A DE10331805A1 DE 10331805 A1 DE10331805 A1 DE 10331805A1 DE 2003131805 DE2003131805 DE 2003131805 DE 10331805 A DE10331805 A DE 10331805A DE 10331805 A1 DE10331805 A1 DE 10331805A1
- Authority
- DE
- Germany
- Prior art keywords
- fuel injection
- injection valve
- valve
- seat body
- valve seat
- 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- Withdrawn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
- F02M51/0671—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
- F02M61/18—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
- F02M2200/00—Details of fuel-injection apparatus, not otherwise provided for
- F02M2200/50—Arrangements of springs for valves used in fuel injectors or fuel injection pumps
- F02M2200/505—Adjusting spring tension by sliding spring seats
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M61/00—Fuel-injectors not provided for in groups F02M39/00 - F02M57/00 or F02M67/00
- F02M61/04—Fuel-injectors not provided for in groups F02M39/00 - F02M57/00 or F02M67/00 having valves, e.g. having a plurality of valves in series
- F02M61/10—Other injectors with elongated valve bodies, i.e. of needle-valve type
- F02M61/12—Other injectors with elongated valve bodies, i.e. of needle-valve type characterised by the provision of guiding or centring means for valve bodies
-
- 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
- F02M61/165—Filtering elements specially adapted in fuel inlets to injector
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)
Abstract
Description
Stand der TechnikState of technology
Die Erfindung geht aus von einem Brennstoffeinspritzventil nach der Gattung des Hauptanspruchs.The The invention is based on a fuel injection valve after Genus of the main claim.
Aus
der
Nachteilig an dem aus der obengenannten Druckschrift bekannten Brennstoffeinspritzventil ist insbesondere die Verkokung der Abspritzöffnungen, welche dadurch verstopfen und den Durchfluß durch das Brennstoffeinspritzventil unzulässig stark vermindern. Dies führt zu Fehlfunktionen der Brennkraftmaschine.adversely on the fuel injection valve known from the above publication in particular, the coking of the spray-orifices, which thereby clog and the flow through the Fuel injector inadmissible greatly reduce. this leads to to malfunction of the internal combustion engine.
Vorteile der ErfindungAdvantages of invention
Das erfindungsgemäße Brennstoffeinspritzventil mit den kennzeichnenden Merkmalen des Hauptanspruchs hat demgegenüber den Vorteil, daß der Ventilsitzkörper und die Abspritzöffnungen so gestaltet sind, daß sie mittels eines an der dem Brennraum zugewandten Stirnfläche des Ventilsitzkörpers vorgesehenen Vorsprungs von der Hauptstrahlungsrichtung der Flamme und Brennraumtemperatur abgeschattet sind. Dies kann dadurch erreicht werden, daß die Flächennormalen der Mündungsquerschnitte senkrecht zur Längsachse des Brennstoffeinspritzventils ausgerichtet sind.The Fuel injection valve according to the invention with the characterizing features of the main claim has the Advantage that the Valve seat body and the spray openings designed so that they by means of an on the combustion chamber facing end face of the Valve seat body provided Projection from the main radiation direction of the flame and combustion chamber temperature are shadowed. This can be achieved in that the surface normal the mouth cross-sections perpendicular to the longitudinal axis of the fuel injection valve are aligned.
Durch die in den Unteransprüchen aufgeführten Maßnahmen sind vorteilhafte Weiterbildungen des im Hauptanspruch angegebenen Brennstoffeinspritzventils möglich.By in the subclaims listed activities are advantageous developments of the specified in the main claim Fuel injection valve possible.
Vorteilhafterweise kann der Ventilsitzkörper des Brennstoffeinspritzventils in einfacher Weise durch Drehen oder Fräsen so bearbeitet werden, daß der Vorsprung mit dem gewünschten Abschattungseffekt gebildet wird.advantageously, can the valve seat body of Fuel injection valve in a simple manner by turning or mill be edited so that the Lead with the desired Shadowing effect is formed.
Weiterhin ist von Vorteil, daß die Abspritzöffnungen durch einen ringförmigen Materialüberstand oder einen nutförmigen Materialabtrag vor der Brennraumtemperatur geschützt sind.Farther is an advantage that the spray openings through an annular Material supernatant or a groove-shaped Material removal are protected from the combustion chamber temperature.
Zeichnungdrawing
Ausführungsbeispiele der Erfindung sind in der Zeichnung vereinfacht dargestellt und in der nachfolgenden Beschreibung näher erläutert. Es zeigen:embodiments The invention are shown in simplified form in the drawing and explained in more detail in the following description. Show it:
Beschreibung der Ausführungsbeispieledescription the embodiments
Das
Brennstoffeinspritzventil
Der
Düsenkörper
Die
Ventilnadel
In
der Ventilnadelführung
Abströmseitig
des Ankers
Erfindungsgemäß ist der
Ventilsitzkörper
Im
Ruhezustand des Brennstoffeinspritzventils
Wird
der Spulenstrom abgeschaltet, fällt
der Anker
Wie
bereits in der Beschreibung zu
In
dem in
Eine
derartige Form des Ventilsitzkörpers
Die
in
Die
vorliegende Ausführungsform
zeichnet sich durch eine sehr ergonomische Form aus, welche der
Herstellung und Montage keine Ecken und Kanten wie den in
Die
Erfindung ist nicht auf die dargestellten Ausführungsbeispiele beschränkt und
für beliebige Bauweisen
von nach innen öffnenden
Mehrloch-Brennstoffeinspritzventilen
Claims (9)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE2003131805 DE10331805A1 (en) | 2003-07-14 | 2003-07-14 | Fuel injection valve for internal combustion engines with magnetic coil co-acting with valve needle with resetting spring acting in stop direction |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE2003131805 DE10331805A1 (en) | 2003-07-14 | 2003-07-14 | Fuel injection valve for internal combustion engines with magnetic coil co-acting with valve needle with resetting spring acting in stop direction |
Publications (1)
Publication Number | Publication Date |
---|---|
DE10331805A1 true DE10331805A1 (en) | 2005-03-17 |
Family
ID=34201359
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE2003131805 Withdrawn DE10331805A1 (en) | 2003-07-14 | 2003-07-14 | Fuel injection valve for internal combustion engines with magnetic coil co-acting with valve needle with resetting spring acting in stop direction |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE10331805A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2009016004A1 (en) * | 2007-07-31 | 2009-02-05 | Robert Bosch Gmbh | Fuel injector having a centering sleeve resting on the ball valve seat of a jet needle as a guide for the jet needle |
-
2003
- 2003-07-14 DE DE2003131805 patent/DE10331805A1/en not_active Withdrawn
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2009016004A1 (en) * | 2007-07-31 | 2009-02-05 | Robert Bosch Gmbh | Fuel injector having a centering sleeve resting on the ball valve seat of a jet needle as a guide for the jet needle |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
OR8 | Request for search as to paragraph 43 lit. 1 sentence 1 patent law | ||
8105 | Search report available | ||
8139 | Disposal/non-payment of the annual fee |