DE102006003668A1 - Fuel injection valve with outward opening nozzle needle e.g. for fuel injection valves, has longitudinal hole nozzle body and outward opening having nozzle needle which is movably provided in longitudinal hole - Google Patents
Fuel injection valve with outward opening nozzle needle e.g. for fuel injection valves, has longitudinal hole nozzle body and outward opening having nozzle needle which is movably provided in longitudinal hole Download PDFInfo
- Publication number
- DE102006003668A1 DE102006003668A1 DE200610003668 DE102006003668A DE102006003668A1 DE 102006003668 A1 DE102006003668 A1 DE 102006003668A1 DE 200610003668 DE200610003668 DE 200610003668 DE 102006003668 A DE102006003668 A DE 102006003668A DE 102006003668 A1 DE102006003668 A1 DE 102006003668A1
- Authority
- DE
- Germany
- Prior art keywords
- fuel injection
- nozzle needle
- longitudinal hole
- injection valve
- nozzle
- 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- Withdrawn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
- 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
- F02M61/08—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 the valves opening in direction of 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
- 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
- F02M61/166—Selection of particular materials
-
- 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
- F02M61/1806—Injection nozzles, e.g. having valve seats; Details of valve member seated ends, not otherwise provided for characterised by the arrangement of discharge orifices, e.g. orientation or size
-
- 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
- F02M61/1893—Details of valve member ends not covered by groups F02M61/1866 - F02M61/188
-
- 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
- F02M2200/02—Fuel-injection apparatus having means for reducing wear
-
- 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
- F02M2200/06—Fuel-injection apparatus having means for preventing coking, e.g. of fuel injector discharge orifices or valve needles
-
- 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
- F02M2200/16—Sealing of fuel injection apparatus 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
- F02M2200/26—Fuel-injection apparatus with elastically deformable elements other than coil springs
-
- 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
- F02M2200/9053—Metals
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Fuel-Injection Apparatus (AREA)
Abstract
Description
Die Erfindung betrifft ein Brennstoffeinspritzventil gemäß dem Oberbegriff des Anspruchs 1.The The invention relates to a fuel injection valve according to the preamble of claim 1.
Ein
gattungsgemäßes Einspritzventil
ist beispielsweise aus der
Ein Problem bei solchen Brennstoffeinspritzventilen mit nach außen öffnender Düsennadel besteht darin, dass bereits geringe Verunreinigungen im Brennstoff, die sich an der Sitzfläche oder der Gegenfläche der Düsennadel ablagern, oder ein geringer Verschleiß ausreicht, um ein nicht vollständiges Schließen des Einspritzventils herbeizuführen.One Problem with such fuel injection valves with outward opening nozzle needle is that even small impurities in the fuel, attached to the seat or the counter surface the nozzle needle Depositing, or a little wear is sufficient to not fully close the Bring in injection valve.
Der Erfindung liegt die Aufgabe zugrunde, ein gattungsgemäßes Brennstoffeinspritzventil derart weiterzubilden, dass auch nach langem Gebrauch ein zuverlässiges Schließen des Einspritzventils gewährleistet ist, dessen Düsennadel üblicherweise durch eine Feder in Schließstellung vorgespannt ist.Of the Invention is based on the object, a generic fuel injector in such a way that even after long use, a reliable closing of Injector ensured is, whose nozzle needle usually by a spring in the closed position is biased.
Diese Aufgabe wird mit einem Brennstoffeinspritzventil gemäß dem Anspruch 1 gelöst.These Task is with a fuel injection valve according to the claim 1 solved.
Durch die erfindungsgemäß in einem gewissen Ausmaß elastisch nachgiebige Ausbildung der konischen Außenfläche des Kopfes der Düsennadel wird die Dichtfunktion des Einspritzventils verbessert, wobei kleine Verunreinigungen an den gegeneinander abdichtenden Flächen oder Verschleiß in gewissem Ausmaß kompensiert werden können.By the invention in one elastic to some extent yielding formation of the conical outer surface of the head of the nozzle needle is the sealing function of the injector improved, with small Contaminants on the surfaces sealing against each other or Wear in compensated to a certain extent can be.
Die Unteransprüche sind auf vorteilhafte Ausführungsformen und Weiterbildungen des erfindungsgemäßen Brennstoffeinspritzventils gerichtet.The under claims are on advantageous embodiments and further developments of the fuel injection valve according to the invention directed.
Die Erfindung wird im Folgenden anhand einer schematischen Zeichnung beispielsweise und mit weiteren Einzelheiten erläutert.The Invention will be described below with reference to a schematic drawing for example, and explained in more detail.
Die einzige Figur stellt einen Querschnitt durch den düsenseitigen Endbereich eines in seinem Aufbau an sich bekannten Brennstoffeinspritzventils dar.The single figure represents a cross section through the nozzle side End region of a known per se in its construction fuel injection valve.
In
einem Düsenkörper
Die
Tiefe t der Ausnehmung
Die
Dicke d der Ringwand
Vorzugsweise
ist der Konuswinkel der Außenfläche
Die
Funktion des Ventils ist an sich bekannt. Die Düsennadel
Im
dargestellten Beispiel setzt die Stirnfläche der Ringwand
Es
versteht sich, dass die Übergänge zwischen
den aksparallelen, zylindrischen Begrenzungsflächen des Ringraums
- 1010
- Düsenkörpernozzle body
- 1212
- Längsbohrunglongitudinal bore
- 1414
- Sitzflächeseat
- 1616
- Düsennadelnozzle needle
- 1818
- Ringraumannulus
- 2020
- Nadelkopfpinhead
- 2222
- Außenflächeouter surface
- 2424
- Ausnehmungrecess
- 2626
- Ringwandring wall
Claims (4)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE200610003668 DE102006003668A1 (en) | 2006-01-26 | 2006-01-26 | Fuel injection valve with outward opening nozzle needle e.g. for fuel injection valves, has longitudinal hole nozzle body and outward opening having nozzle needle which is movably provided in longitudinal hole |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE200610003668 DE102006003668A1 (en) | 2006-01-26 | 2006-01-26 | Fuel injection valve with outward opening nozzle needle e.g. for fuel injection valves, has longitudinal hole nozzle body and outward opening having nozzle needle which is movably provided in longitudinal hole |
Publications (1)
Publication Number | Publication Date |
---|---|
DE102006003668A1 true DE102006003668A1 (en) | 2007-08-02 |
Family
ID=38268124
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE200610003668 Withdrawn DE102006003668A1 (en) | 2006-01-26 | 2006-01-26 | Fuel injection valve with outward opening nozzle needle e.g. for fuel injection valves, has longitudinal hole nozzle body and outward opening having nozzle needle which is movably provided in longitudinal hole |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE102006003668A1 (en) |
Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE837195C (en) * | 1944-02-24 | 1952-04-21 | Kloeckner Humboldt Deutz Ag | Open injection valve for internal combustion engines |
DE2517682A1 (en) * | 1975-04-22 | 1976-11-04 | Daimler Benz Ag | INJECTION VALVE FOR COMBUSTION MACHINERY |
DE2618135A1 (en) * | 1975-04-26 | 1976-11-11 | Ntn Toyo Bearing Co Ltd | FUEL INJECTION VALVE AND METHOD OF MANUFACTURING THE SAME |
DE3617015A1 (en) * | 1986-05-21 | 1987-11-26 | Bosch Gmbh Robert | Fuel injection valve with soft seat |
DE69115376T2 (en) * | 1990-01-26 | 1996-07-11 | Orbital Eng Australia | FUEL INJECTION NOZZLE |
DE19547169A1 (en) * | 1995-12-16 | 1997-06-19 | Bosch Gmbh Robert | Fuel injection valve for internal combustion engines |
DE10232693A1 (en) * | 2002-07-18 | 2004-02-05 | Siemens Ag | Fuel injection valve, for an IC motor, has structured outer surfaces for the valve housing and the closed valve plate to give a smooth surface over the dividing line which is free of steps/edges to prevent the entry of burned fuel residue |
DE10331266A1 (en) * | 2003-07-10 | 2005-03-24 | Robert Bosch Gmbh | Fuel injector |
-
2006
- 2006-01-26 DE DE200610003668 patent/DE102006003668A1/en not_active Withdrawn
Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE837195C (en) * | 1944-02-24 | 1952-04-21 | Kloeckner Humboldt Deutz Ag | Open injection valve for internal combustion engines |
DE2517682A1 (en) * | 1975-04-22 | 1976-11-04 | Daimler Benz Ag | INJECTION VALVE FOR COMBUSTION MACHINERY |
DE2618135A1 (en) * | 1975-04-26 | 1976-11-11 | Ntn Toyo Bearing Co Ltd | FUEL INJECTION VALVE AND METHOD OF MANUFACTURING THE SAME |
DE3617015A1 (en) * | 1986-05-21 | 1987-11-26 | Bosch Gmbh Robert | Fuel injection valve with soft seat |
DE69115376T2 (en) * | 1990-01-26 | 1996-07-11 | Orbital Eng Australia | FUEL INJECTION NOZZLE |
DE19547169A1 (en) * | 1995-12-16 | 1997-06-19 | Bosch Gmbh Robert | Fuel injection valve for internal combustion engines |
DE10232693A1 (en) * | 2002-07-18 | 2004-02-05 | Siemens Ag | Fuel injection valve, for an IC motor, has structured outer surfaces for the valve housing and the closed valve plate to give a smooth surface over the dividing line which is free of steps/edges to prevent the entry of burned fuel residue |
DE10331266A1 (en) * | 2003-07-10 | 2005-03-24 | Robert Bosch Gmbh | Fuel injector |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
OM8 | Search report available as to paragraph 43 lit. 1 sentence 1 patent law | ||
8139 | Disposal/non-payment of the annual fee |