DE10224836A1 - Fuel injection device e.g. common-rail injector for IC engines in motor vehicles has fuel filter integrated in fuel feed pipe to injector, to reduce number of assembly components - Google Patents
Fuel injection device e.g. common-rail injector for IC engines in motor vehicles has fuel filter integrated in fuel feed pipe to injector, to reduce number of assembly components Download PDFInfo
- Publication number
- DE10224836A1 DE10224836A1 DE2002124836 DE10224836A DE10224836A1 DE 10224836 A1 DE10224836 A1 DE 10224836A1 DE 2002124836 DE2002124836 DE 2002124836 DE 10224836 A DE10224836 A DE 10224836A DE 10224836 A1 DE10224836 A1 DE 10224836A1
- Authority
- DE
- Germany
- Prior art keywords
- fuel
- fuel injection
- injection device
- filter
- line
- 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.)
- Ceased
Links
Classifications
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- 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
- F02M55/00—Fuel-injection apparatus characterised by their fuel conduits or their venting means; Arrangements of conduits between fuel tank and pump F02M37/00
- F02M55/02—Conduits between injection pumps and injectors, e.g. conduits between pump and common-rail or conduits between common-rail and injectors
- F02M55/025—Common rails
-
- 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
-
- 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
- F02M2200/80—Fuel injection apparatus manufacture, repair or assembly
- F02M2200/803—Fuel injection apparatus manufacture, repair or assembly using clamp elements and fastening means; e.g. bolts or screws
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- 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
- F02M2200/80—Fuel injection apparatus manufacture, repair or assembly
- F02M2200/8076—Fuel injection apparatus manufacture, repair or assembly involving threaded members
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Fuel-Injection Apparatus (AREA)
Abstract
Description
Die Erfindung geht aus von einer Kraftstoffeinspritzvorrichtung nach der Gattung des Patentanspruchs 1.The invention is based on one Fuel injection device according to the preamble of the claim 1.
Bei bekannten Common Rail Injektoren ist der Kraftstofffilter ein separates Bauteil, das zwischen Rail und Einspritzventil in der Kraftstoffleitung angeordnet ist.With known common rail injectors the fuel filter is a separate component that sits between the rail and the injection valve is arranged in the fuel line.
Die erfindungsgemäße Kraftstoffeinspritzvorrichtung ermöglicht bei gleich bleibenden Außenabmessungen des Einspritzventils (Injektors) die Verlagerung der Filterfunktion in den Ventilkörper (Injektorkörper) in Kombination mit einem direkten Anschluss der z.B. vom Rail kommenden Kraftstoffleitung an das Kraftstoffeinspritzventil. Dadurch werden Montage und Demontage des Filters vereinfacht und die Teileanzahl reduziert, da ein separates Bauteil zur Filteraufnahme nunmehr entfällt.The fuel injection device according to the invention allows with constant external dimensions of the injection valve (injector) the shifting of the filter function in the valve body (Injector) in combination with a direct connection of e.g. coming from the rail Fuel line to the fuel injector. This will be assembly and disassembly of the filter simplified and the number of parts reduced, since a separate component for filter holder is now no longer required.
Der Gewindeanschluss kann bereits im Schmiedeteil des Injektors integriert sein und mit Außen- oder Innengewinde ausgeführt sein. Bei Gewindeanschlüssen mit Innengewinde übernimmt der Filter vorteilhafterweise mit einem Flansch auch die Dichtfunktion zwischen Einspritzventil und Kraftstoffleitung, so dass eine separate Dichtscheibe nicht erforderlich ist. Vorzugsweise ist der Filter als Sieb- oder Spaltfilter ausgebildet, wobei ein Siebfilter am wenigsten Bauraum benötigt. Welche Gewindevariante gewählt wird, hängt insbesondere davon ab, welche Art von Filter integriert werden soll und wie hoch die Anforderungen an die Festigkeit des Gewindeanschlusses sind.The threaded connection can already be integrated in the forged part of the injector and with external or Internal thread executed his. For threaded connections with internal thread the filter advantageously also has the sealing function with a flange between the injector and fuel line, making a separate Sealing washer is not required. Preferably the filter designed as a screen or gap filter, with a screen filter least Installation space required. Which thread variant selected will hang especially depending on what type of filter should be integrated and how high the requirements for the strength of the threaded connection are.
Weitere Vorteile und vorteilhafte Ausgestaltungen des Gegenstands der Erfindung sind der Beschreibung, der Zeichnung und den Ansprüchen entnehmbar. Other advantages and beneficial Embodiments of the object of the invention are the description, the drawing and the claims removable.
Bevorzugte Ausführungsbeispiele der erfindungsgemäßen Kraftstoffeinspritzvorrichtung mit einem in das Kraftstoffeinspritzventil integrierten Kraftstofffilter sind in der Zeichnung schematisch dargestellt und in der nachfolgenden Beschreibung näher erläutert. Es zeigen:Preferred embodiments of the fuel injection device according to the invention with a fuel filter integrated in the fuel injection valve are shown schematically in the drawing and in the following Description explained in more detail. It demonstrate:
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1 eine Schnittansicht eines Kraftstoffeinspritzventils der erfindungsgemäßen Kraftstoffeinspritzvorrichtung;1 a sectional view of a fuel injection valve of the fuel injection device according to the invention; -
2 den Querschnitt des Kraftstoffeinspritzventils gemäß der Schnittlinie II-II in1 ; und2 the cross section of the fuel injector according to the section line II-II in1 ; and -
3 ein Kraftstoffeinspritzventil einer anderer Ausführungsform der erfindungsgemäßen Kraftstoffeinspritzvorrichtung in einer Darstellung analog zu2 .3 a fuel injection valve of another embodiment of the fuel injection device according to the invention in a representation similar to2 ,
Beschreibung der Ausführungsbeispieledescription of the embodiments
Die erfindungsgemäße Kraftstoffeinspritzvorrichtung wird üblicherweise bei einer Brennkraftmaschine mit mehreren Zylindern verwendet, wobei jedem dieser Zylinder ein Kraftstoffeinspritzventil (Injektor) zugeordnet ist.The fuel injection device according to the invention is usually used in an internal combustion engine with several cylinders, each this cylinder is assigned a fuel injection valve (injector) is.
Entsprechend den
In einer axialen Führungsbohrung
der Einspritzdüse
Die Anschlussöffnung
Bei dem in
Anders als in den gezeigten Ausführungsformen,
bei denen der Gewindeanschluss
Claims (12)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE2002124836 DE10224836A1 (en) | 2002-06-05 | 2002-06-05 | Fuel injection device e.g. common-rail injector for IC engines in motor vehicles has fuel filter integrated in fuel feed pipe to injector, to reduce number of assembly components |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE2002124836 DE10224836A1 (en) | 2002-06-05 | 2002-06-05 | Fuel injection device e.g. common-rail injector for IC engines in motor vehicles has fuel filter integrated in fuel feed pipe to injector, to reduce number of assembly components |
Publications (1)
Publication Number | Publication Date |
---|---|
DE10224836A1 true DE10224836A1 (en) | 2004-01-08 |
Family
ID=29718837
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE2002124836 Ceased DE10224836A1 (en) | 2002-06-05 | 2002-06-05 | Fuel injection device e.g. common-rail injector for IC engines in motor vehicles has fuel filter integrated in fuel feed pipe to injector, to reduce number of assembly components |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE10224836A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2006131426A1 (en) * | 2005-06-10 | 2006-12-14 | Robert Bosch Gmbh | High-pressure accumulator chamber with integrated throttle and filter element |
-
2002
- 2002-06-05 DE DE2002124836 patent/DE10224836A1/en not_active Ceased
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2006131426A1 (en) * | 2005-06-10 | 2006-12-14 | Robert Bosch Gmbh | High-pressure accumulator chamber with integrated throttle and filter element |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
OP8 | Request for examination as to paragraph 44 patent law | ||
8131 | Rejection |