DE202006002663U1 - Fuel injector for internal combustion engines - Google Patents
Fuel injector for internal combustion engines Download PDFInfo
- Publication number
- DE202006002663U1 DE202006002663U1 DE200620002663 DE202006002663U DE202006002663U1 DE 202006002663 U1 DE202006002663 U1 DE 202006002663U1 DE 200620002663 DE200620002663 DE 200620002663 DE 202006002663 U DE202006002663 U DE 202006002663U DE 202006002663 U1 DE202006002663 U1 DE 202006002663U1
- Authority
- DE
- Germany
- Prior art keywords
- edge
- biting edge
- biting
- contact surface
- fuel injector
- 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.)
- Expired - Lifetime
Links
- 239000000446 fuel Substances 0.000 title claims abstract description 19
- 238000002485 combustion reaction Methods 0.000 title claims abstract description 6
- 238000007789 sealing Methods 0.000 description 7
- 238000002347 injection Methods 0.000 description 3
- 239000007924 injection Substances 0.000 description 3
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 239000002283 diesel fuel Substances 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
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
- F02M61/168—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
- F02M51/00—Fuel-injection apparatus characterised by being operated electrically
- F02M51/06—Injectors peculiar thereto with means directly operating the valve needle
- F02M51/0603—Injectors peculiar thereto with means directly operating the valve needle using piezoelectric or magnetostrictive operating 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
- F02M55/00—Fuel-injection apparatus characterised by their fuel conduits or their venting means; Arrangements of conduits between fuel tank and pump F02M37/00
- F02M55/004—Joints; Sealings
-
- 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
- F02M2200/8053—Fuel injection apparatus manufacture, repair or assembly involving mechanical deformation of the apparatus or parts thereof
Abstract
Kraftstoffinjektor für Brennkraftmaschinen mit einem Gehäuse aus mindestens zwei Hochdruckkörpern (10, 11, 12), die mindestens einen Druckraum (23, 31) umschließen und die zueinander mit Anlageflächen (13, 14, 101, 111) aneinander anliegen und die durch eine Spannvorrichtung (16) gegeneinander gepresst sind, dadurch gekennzeichnet, dass mindestens eine der Anlageflächen (13, 14, 101, 111) eine den Druckraum (23, 31) umschließende Beißkante (50) aufweist, die auf die angrenzende Anlagefläche (13, 14, 101, 111) einwirkt.fuel injector for internal combustion engines with a housing from at least two high-pressure bodies (10, 11, 12), the at least one pressure chamber (23, 31) enclose and the one another with contact surfaces (13, 14, 101, 111) abut each other and by a clamping device (16) pressed against each other, characterized in that at least one of the contact surfaces (13, 14, 101, 111) a biting edge (50) enclosing the pressure chamber (23, 31) has, which acts on the adjacent contact surface (13, 14, 101, 111).
Description
Die Erfindung betrifft einen Kraftstoffinjektor für Brennkraftmaschinen nach dem Oberbegriff des Anspruchs 1.The The invention relates to a fuel injector for internal combustion engines the preamble of claim 1.
Kraftstoffinjektoren
für Brennkraftmaschinen weisen
ein Gehäuse
aus mindestens zwei Hochdruckkörper
auf, die in axialer Richtung hydraulisch dichtend zusammengehalten
werden. Ein derartiger Kraftstoffinjektor ist beispielsweise aus
Aus
Aufgabe der vorliegenden Erfindung ist es, eine hochdruckdichte Verbindungen zwischen Hockdruckkörpern eine Kraftstoffinjektors zu schaffen, die einfach herzustellen ist. Die hochdruckdichte Verbindung soll insbesondere geeignet sein zum Abdichten für Kraftstoffinjektoren, die ohne ein Rücklaufsystem zur Ableitung von Lecköl auskommen.task It is the object of the present invention to provide a high pressure tight connection between high-pressure bodies to create a fuel injector that is easy to manufacture. The high-pressure-tight connection should be particularly suitable for Caulking for Fuel injectors that without a return system for discharging of leak oil get along.
Vorteile der ErfindungAdvantages of invention
Die Aufgabe der Erfindung wird mit den kennzeichnenden Maßnahmen des Anspruchs 1 gelöst. Durch die Ausbildung der Beißkante entsteht eine hohe Flächenpressung zwischen den abzudichtenden Flächen der benachbarten Hochdruckkörper, wobei die Beißkante direkt an einer der Stirnflächen mindestens eines benachbarten Hochdruckkörpers ausgebildet ist und zu einer zumindest teilweisen plastischen Verformung an der benachbarten Anlagefläche führt. Die Beißkante ermöglicht die Abdichtung von zwei Arten von Bauteilen zueinander und ist außerdem extrem Platz sparend.The The object of the invention is with the characterizing measures of claim 1. By the formation of the biting edge creates a high surface pressure between the surfaces to be sealed the adjacent high-pressure body, wherein the biting edge directly on one of the faces at least formed of a neighboring high-pressure body is and to an at least partial plastic deformation the adjacent contact surface leads. The biting edge allows the sealing of two types of components to each other and is also extreme Space saving.
Vorteilhafte Weiterbildungen der Erfindung sind durch die Maßnahmen der Unteransprüche möglich. Vorteilhaft ist es, eine Kombination von verschieden ausgeführten Beißkanten an gegenüberliegenden Anlageflächen einer Zwischenplatte vorzusehen, wobei die Hochdruckkörper ein Injektorkörper und ein Düsenkörper des Kraftstoffinjektors sind und die Zwischenplatte zwischen beiden Körpern angeordnet ist. An einer Anlagefläche des Injektorkörpers ist eine erste Beißkante und an einer Anlagefläche des Düsenkörpers eine zweite Beißkante ausgebildet, wobei die erste Beißkante auf eine erste Stirnfläche des Zwischenkörpers und die zweite Beißkante auf eine gegenüberliegende zweite Stirnfläche des Drosselkörpers einwirkt und die beiden Beißkanten an unterschiedlichen Durchmessern der Zwischenplatte angreifen. Um eine Wölbung der Zwischenplatte zu vermeiden ist es besonders vorteilhaft, wenn die eine Beißkante an dem größeren Durchmesser durch einen ringförmig aus der Anlagefläche herausstehenden Ansatz gebildet ist und wenn die andere Beißkante an dem kleineren Durchmesser eine Kante ist, die durch eine geneigt verlaufende Anlagefläche bzw. Stirnfläche gebildet wird. Besonders vorteilhaft ist es weiterhin, Mittel vorzusehen, dass beim Verschrauben mit der Spannmutter die Zwischenplatte ohne Verdrehung positioniert bleibt.advantageous Further developments of the invention are possible by the measures of the subclaims. Advantageous It is a combination of differently designed biting edges on opposite contact surfaces to provide an intermediate plate, wherein the high-pressure body a Injector body and a nozzle body of the Fuel injector are and the intermediate plate between the two bodies is arranged. At a contact surface of the injector body is a first biting edge and at a contact surface of the Nozzle body one second biting edge formed, wherein the first biting edge on a first end face of the intermediate body and the second biting edge an opposite one second end face of the throttle body acts and the two Beißkanten on attack different diameters of the intermediate plate. Around a vault To avoid the intermediate plate, it is particularly advantageous if the a biting edge at the larger diameter a ring-shaped from the contact surface protruding approach is formed and when the other biting edge the smaller diameter is an edge that is inclined by one extending contact surface or end face is formed. It is furthermore particularly advantageous to provide means that when screwing with the clamping nut, the intermediate plate without Twist remains positioned.
Ausführungsbeispielembodiment
Zwei Ausführungsbeispiele der Erfindung sind in der Zeichnung dargestellt und in der nachfolgenden Beschreibung näher erläutert.Two embodiments The invention are illustrated in the drawing and in the following Description closer explained.
Der
in
Im
Düsenkörper
Das
Injektorgehäuse
In
der Zwischenplatte
Eine
hydraulisch hochdruckdichte Verbindung zwischen dem Injektorgehäuse
Eine
weitere Ausführungsform
zur Ausbildung einer Beißkante
Im
vorliegenden Ausführungsbeispiel
eines Kraftstoffinjektors ohne Rücklaufsystem
zum Ableiten von Lecköl
ist eine erste Beißkante
Ein
weiteres Ausführungsbeispiel
ist denkbar, indem der erhabene Ansatz
Zweckmäßigerweise
ist die Zwischenplatte
Claims (7)
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE200620002663 DE202006002663U1 (en) | 2006-02-20 | 2006-02-20 | Fuel injector for internal combustion engines |
EP07100707A EP1820957A3 (en) | 2006-02-20 | 2007-01-18 | Fuel injector for combustion engines |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE200620002663 DE202006002663U1 (en) | 2006-02-20 | 2006-02-20 | Fuel injector for internal combustion engines |
Publications (1)
Publication Number | Publication Date |
---|---|
DE202006002663U1 true DE202006002663U1 (en) | 2006-04-13 |
Family
ID=36274475
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE200620002663 Expired - Lifetime DE202006002663U1 (en) | 2006-02-20 | 2006-02-20 | Fuel injector for internal combustion engines |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP1820957A3 (en) |
DE (1) | DE202006002663U1 (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2085606A1 (en) | 2008-02-01 | 2009-08-05 | Robert Bosch Gmbh | Intermediate board for a fuel injector and fuel injector |
WO2013023825A1 (en) * | 2011-08-18 | 2013-02-21 | Robert Bosch Gmbh | Valve for dosing a flowing medium |
DE102012205701A1 (en) | 2012-04-05 | 2013-10-10 | Robert Bosch Gmbh | Arrangement comprising a housing part of an internal combustion engine, a fuel injector and a clamping claw |
US8939128B2 (en) | 2010-05-07 | 2015-01-27 | Liebherr Machines Bulle Sa | High-pressure injector |
DE102006009018B4 (en) * | 2006-02-27 | 2016-04-07 | Robert Bosch Gmbh | Fuel injector with directly operable nozzle needle |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102009029398A1 (en) * | 2009-09-11 | 2011-03-24 | Robert Bosch Gmbh | Fuel injector |
DE102011086918A1 (en) * | 2011-11-23 | 2013-05-23 | Robert Bosch Gmbh | Fuel injector with a component dressing |
DE102014202938B4 (en) * | 2014-02-18 | 2015-12-03 | Robert Bosch Gmbh | Fuel injector |
CN108223222A (en) * | 2018-03-28 | 2018-06-29 | 南岳电控(衡阳)工业技术股份有限公司 | A kind of fuel oil injector for reducing metering servovalve deformation |
DE102022000302A1 (en) * | 2022-01-27 | 2023-07-27 | Deutz Aktiengesellschaft | Cylinder head for an internal combustion engine with a combustion chamber and the use of a sealing sleeve for sealing a cylinder head |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3849067B2 (en) * | 1995-03-30 | 2006-11-22 | ボッシュ株式会社 | Fuel injection pump |
DE19523243B4 (en) * | 1995-06-27 | 2009-04-02 | Robert Bosch Gmbh | Fuel injection valve for internal combustion engines with a clamping nut with a conically formed annular shoulder |
DE19608575B4 (en) * | 1996-03-06 | 2005-10-20 | Bosch Gmbh Robert | Fuel injection valve for internal combustion engines |
DE10102233A1 (en) * | 2001-01-19 | 2002-07-25 | Bosch Gmbh Robert | High-pressure fuel system for internal combustion engines |
DE10213380B4 (en) * | 2001-09-04 | 2010-08-12 | Robert Bosch Gmbh | Fuel injection valve for an internal combustion engine |
DE10209116A1 (en) * | 2002-03-01 | 2003-09-18 | Bosch Gmbh Robert | Method of manufacturing a fuel injector |
DE10234846A1 (en) * | 2002-07-31 | 2004-02-19 | Robert Bosch Gmbh | Fuel injection valve for internal combustion engine has annular surface divided into inner and outer annular surfaces with inner one formed by springing annular land |
DE10346845B4 (en) * | 2003-10-09 | 2022-07-07 | Robert Bosch Gmbh | Fuel injection valve for internal combustion engines |
DE102004005452B4 (en) * | 2004-02-04 | 2014-01-09 | Robert Bosch Gmbh | Nozzle holder combination with direct-operated injection valve member |
DE102004022428A1 (en) * | 2004-05-06 | 2005-12-01 | Siemens Ag | Injection valve for internal combustion engines |
-
2006
- 2006-02-20 DE DE200620002663 patent/DE202006002663U1/en not_active Expired - Lifetime
-
2007
- 2007-01-18 EP EP07100707A patent/EP1820957A3/en not_active Withdrawn
Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102006009018B4 (en) * | 2006-02-27 | 2016-04-07 | Robert Bosch Gmbh | Fuel injector with directly operable nozzle needle |
EP2085606A1 (en) | 2008-02-01 | 2009-08-05 | Robert Bosch Gmbh | Intermediate board for a fuel injector and fuel injector |
DE102008007225A1 (en) | 2008-02-01 | 2009-08-06 | Robert Bosch Gmbh | Intermediate plate for a fuel injector and fuel injector |
US8939128B2 (en) | 2010-05-07 | 2015-01-27 | Liebherr Machines Bulle Sa | High-pressure injector |
WO2013023825A1 (en) * | 2011-08-18 | 2013-02-21 | Robert Bosch Gmbh | Valve for dosing a flowing medium |
CN103748350A (en) * | 2011-08-18 | 2014-04-23 | 罗伯特·博世有限公司 | Valve for dosing a flowing medium |
JP2014521883A (en) * | 2011-08-18 | 2014-08-28 | ローベルト ボツシユ ゲゼルシヤフト ミツト ベシユレンクテル ハフツング | Valve for metering a flowing medium |
US9976531B2 (en) | 2011-08-18 | 2018-05-22 | Robert Bosch Gmbh | Valve for dosing a flowing medium |
DE102012205701A1 (en) | 2012-04-05 | 2013-10-10 | Robert Bosch Gmbh | Arrangement comprising a housing part of an internal combustion engine, a fuel injector and a clamping claw |
CN104603446B (en) * | 2012-04-05 | 2018-04-24 | 罗伯特·博世有限公司 | Include the device of internal combustion engine housing component, fuel injector and binding clip |
Also Published As
Publication number | Publication date |
---|---|
EP1820957A2 (en) | 2007-08-22 |
EP1820957A3 (en) | 2009-03-25 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
R207 | Utility model specification |
Effective date: 20060518 |
|
R150 | Term of protection extended to 6 years |
Effective date: 20090504 |
|
R151 | Term of protection extended to 8 years | ||
R151 | Term of protection extended to 8 years |
Effective date: 20120507 |
|
R152 | Term of protection extended to 10 years | ||
R152 | Term of protection extended to 10 years |
Effective date: 20140427 |
|
R071 | Expiry of right |