DE102005008466A1 - Fuel-injection valve e.g. injector for fuel-injection systems of compression-ignition internal combustion engines has supply channel of fuel-inlet connecting piece, located eccentrically in relation to axis of valve housing - Google Patents
Fuel-injection valve e.g. injector for fuel-injection systems of compression-ignition internal combustion engines has supply channel of fuel-inlet connecting piece, located eccentrically in relation to axis of valve housing Download PDFInfo
- Publication number
- DE102005008466A1 DE102005008466A1 DE200510008466 DE102005008466A DE102005008466A1 DE 102005008466 A1 DE102005008466 A1 DE 102005008466A1 DE 200510008466 DE200510008466 DE 200510008466 DE 102005008466 A DE102005008466 A DE 102005008466A DE 102005008466 A1 DE102005008466 A1 DE 102005008466A1
- Authority
- DE
- Germany
- Prior art keywords
- fuel
- valve
- valve housing
- fuel injection
- axis
- 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- Withdrawn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
- 238000002347 injection Methods 0.000 title claims abstract description 37
- 239000007924 injection Substances 0.000 title claims abstract description 37
- 238000002485 combustion reaction Methods 0.000 title claims description 8
- 239000000446 fuel Substances 0.000 claims description 89
- 238000007789 sealing Methods 0.000 claims description 6
- 230000007704 transition Effects 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 238000007596 consolidation process Methods 0.000 description 3
- 238000005520 cutting process Methods 0.000 description 3
- 239000002283 diesel fuel Substances 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000003252 repetitive effect Effects 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 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
- 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
- F02M55/005—Joints; Sealings for high pressure conduits, e.g. connected to pump outlet or to injector inlet
-
- 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
- F02M55/008—Arrangement of fuel passages inside of injectors
-
- 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
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 für Brennstoffeinspritzanlagen von Brennkraftmaschinen. Speziell betrifft die Erfindung einen Injektor für Brennstoffeinspritzanlagen von luftverdichtenden, selbstzündenden Brennkraftmaschinen.The The invention relates to a fuel injection valve for fuel injection systems of internal combustion engines. Specifically, the invention relates to an injector for fuel injection systems of air-compressing, self-igniting Internal combustion engines.
Aus
der
Das
aus der
Vorteile der ErfindungAdvantages of invention
Das erfindungsgemäße Brennstoffeinspritzventil mit den Merkmalen des Anspruchs 1 hat demgegenüber den Vorteil, dass die Stabilität des Brennstoffeinspritzventils in Bezug auf die Kräfte, die durch den hohen Druck des in das Ventilgehäuse eingeleiteten Brennstoffes entstehen, verbessert ist. Insbesondere ist die Anbindung des Zulaufkanals beziehungsweise des Brennstoffeinlassstutzens an das Ventilgehäuse verbessert, wodurch sich gegenüber dem Stand der Technik die gleiche Stabilität mit geringerem Fertigungsaufwand, insbesondere geringerem Materialeinsatz, erzielen lässt und außerdem der für das Brennstoffeinspritzventil benötigte Einbauraum verringert werden kann.The Fuel injection valve according to the invention with the features of claim 1 has the advantage that the stability of the fuel injection valve in terms of powers, due to the high pressure of the introduced into the valve housing fuel arise, is improved. In particular, the connection of the inlet channel or of the fuel inlet connection to the valve housing, which is opposite to the State of the art the same stability with less manufacturing effort, especially lower material use, can achieve and Furthermore the for the fuel injector required installation space reduced can be.
Durch die in den Unteransprüchen aufgeführten Maßnahmen sind vorteilhafte Weiterbildungen des im Anspruch 1 angegebenen Brennstoffeinspritzventils möglich.By in the subclaims listed activities are advantageous developments of specified in claim 1 Fuel injection valve possible.
Vorteilhaft ist es, dass der Brennstoffeinlassstutzen seitlich an dem Ventilgehäuse angeordnet ist. Insbesondere kann eine Außenseite des Brennstoffeinlassstutzens direkt in die Außenseite des Ventilgehäuses des Brennstoffeinspritzventils auslaufen. Somit kann durch die Kombination der seitlichen und exzentrischen Anordnung des Brennstoffeinlassstutzens beziehungsweise des Zulaufkanals die Stabilität des Brennstoffeinspritzventils weiter verbessert werden, wobei sich ein optimierter Platzbedarf ergibt.Advantageous it is that the fuel inlet port arranged laterally on the valve housing is. In particular, an outside can the Brennstoffeinlassstutzens directly into the outside of the valve housing of the Leak fuel injector. Thus, by the combination the lateral and eccentric arrangement of the fuel inlet nozzle or the inlet channel, the stability of the fuel injection valve be further improved, with an optimized footprint results.
Ferner ist es vorteilhaft, dass eine Achse des Zulaufkanals des Brennstoffeinlassstutzens gegenüber der Achse des Ventilgehäuses um einen Winkel geneigt ist, der im Bereich von etwa 15° bis etwa 90°, und insbesondere im Bereich von etwa 45° bis etwa 90°, liegt. Dadurch können die durch den Druck des Brennstoffes, der im Ventilgehäuse im Betrieb des Brennstoffeinspritzventils vorgesehen ist, auf den Zulaufkanal und somit den Brennstoffeinlassstutzen wirkenden Kräfte zuverlässig aufgenommen werden.Further it is advantageous that an axis of the inlet channel of the Brennstoffeinlassstutzens across from the axis of the valve housing inclined at an angle ranging from about 15 ° to about 90 °, and in particular in the range of about 45 ° to about 90 °. This allows the by the pressure of the fuel in the valve body during operation of the fuel injection valve is provided on the inlet channel and thus reliably absorb the forces acting on the fuel inlet nozzle become.
Vorteilhaft ist es, dass eine Wandung des Zulaufkanals in eine innere Gehäusewandung des Ventilgehäuses ausläuft. Dadurch ist die Belastbarkeit in einem Übergangsbereich, in dem der Zulaufkanal in die Gehäusewandung ausläuft, auf konstruktive Weise verbessert.Advantageous it is that one wall of the inlet channel into an inner housing wall of the valve housing expires. As a result, the load capacity is in a transitional area in which the Inlet channel in the housing wall expires improved in a constructive way.
Vorteilhaft ist es, dass der Brennstoffeinlassstutzen mit dem Ventilgehäuse in einem Übergangsbereich, in dem der Zulaufkanal in das Ventilgehäuse übergeht, durch Autofrettage, verfestigt ist. Durch Autofrettage, das heißt durch einen Selbstverfestigungsvorgang, kann eine Mikroverfestigung der Oberfläche im Übergangsbereich, insbesondere im Bereich der Bohrverschneidung, erreicht werden. Dies ist besonders in Kombination mit der Neigung der Achse des Zulaufkanals gegenüber der Achse des Ventilgehäuses um einen Winkel aus dem oben genannten Bereich von Vorteil, wodurch sich eine besonders hohe Stabilität erzielen lässt.Advantageous it is that the fuel inlet nozzle with the valve housing in a transition region, in which the inlet channel merges into the valve housing, by autofrettage, is solidified. By Autofrettage, that is by a self-consolidation process, may be a micro-consolidation of the surface in the transition region, in particular in the field of Bohrverschneidung be achieved. This is special in combination with the inclination of the axis of the inlet channel relative to the Axle of the valve housing by an angle from the above range of advantage, thereby a particularly high stability can be achieved.
Zeichnungdrawing
Ein bevorzugtes Ausführungsbeispiel der Erfindung ist in der nachfolgenden Beschreibung anhand der beigefügten Zeichnungen näher erläutert. Es zeigt:One preferred embodiment The invention is described in the following description with reference to the accompanying drawings explained in more detail. It shows:
Beschreibung des Ausführungsbeispielsdescription of the embodiment
Das
Brennstoffeinspritzventil
Das
Ventilgehäuse
An
dem Ventilgehäuse
Durch
die Ausdehnung des Aktors
Nach
der Betätigung
des Aktors
Der
Brennstoffeinlassstutzen
In
einem Übergangsbereich
Außerdem ist
eine Achse
Der
Brennstoffeinlassstutzen
Es
ist anzumerken, dass der Aktorraum
Die Erfindung ist nicht auf das beschriebene Ausführungsbeispiel beschränkt.The Invention is not limited to the embodiment described.
Claims (10)
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE200510008466 DE102005008466A1 (en) | 2005-02-24 | 2005-02-24 | Fuel-injection valve e.g. injector for fuel-injection systems of compression-ignition internal combustion engines has supply channel of fuel-inlet connecting piece, located eccentrically in relation to axis of valve housing |
PCT/EP2006/050201 WO2006089817A1 (en) | 2005-02-24 | 2006-01-13 | Fuel-injection valve |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE200510008466 DE102005008466A1 (en) | 2005-02-24 | 2005-02-24 | Fuel-injection valve e.g. injector for fuel-injection systems of compression-ignition internal combustion engines has supply channel of fuel-inlet connecting piece, located eccentrically in relation to axis of valve housing |
Publications (1)
Publication Number | Publication Date |
---|---|
DE102005008466A1 true DE102005008466A1 (en) | 2006-08-31 |
Family
ID=36090955
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE200510008466 Withdrawn DE102005008466A1 (en) | 2005-02-24 | 2005-02-24 | Fuel-injection valve e.g. injector for fuel-injection systems of compression-ignition internal combustion engines has supply channel of fuel-inlet connecting piece, located eccentrically in relation to axis of valve housing |
Country Status (2)
Country | Link |
---|---|
DE (1) | DE102005008466A1 (en) |
WO (1) | WO2006089817A1 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102017200805A1 (en) | 2017-01-19 | 2018-07-19 | Robert Bosch Gmbh | By means of shut-off piston autofrettiertes valve housing |
WO2019129410A1 (en) * | 2017-12-29 | 2019-07-04 | Robert Bosch Gmbh | A fuel injector having a fuel channel with optimized durability |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8381402B2 (en) | 2009-12-01 | 2013-02-26 | Caterpillar Inc. | Fuel injector tip autofrettage process |
US8590815B2 (en) | 2010-06-24 | 2013-11-26 | Caterpillar Inc. | Fuel injector tip with compressive residual stress |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2356399A1 (en) * | 1973-11-12 | 1975-05-15 | Hatz Motoren | FUEL INJECTION ENGINE |
DE10146743A1 (en) * | 2001-09-22 | 2003-04-17 | Bosch Gmbh Robert | Injection valve for an internal combustion engine |
DE10151688A1 (en) * | 2001-10-19 | 2003-04-30 | Bosch Gmbh Robert | Valve for controlling liquids |
DE10162203A1 (en) * | 2001-12-18 | 2003-07-10 | Bosch Gmbh Robert | High pressure fuel store has high pressure connections with holding elements fixed to store at two or more connecting points |
DE10164123A1 (en) | 2001-12-24 | 2003-01-30 | Bosch Gmbh Robert | Fuel injection device for direct injection internal combustion engine with valve device having elastic delay element between valve seat and control space at its opposite ends |
DE10300845A1 (en) * | 2003-01-10 | 2004-07-29 | Robert Bosch Gmbh | Connection piece for high pressure screw connections |
-
2005
- 2005-02-24 DE DE200510008466 patent/DE102005008466A1/en not_active Withdrawn
-
2006
- 2006-01-13 WO PCT/EP2006/050201 patent/WO2006089817A1/en not_active Application Discontinuation
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102017200805A1 (en) | 2017-01-19 | 2018-07-19 | Robert Bosch Gmbh | By means of shut-off piston autofrettiertes valve housing |
WO2019129410A1 (en) * | 2017-12-29 | 2019-07-04 | Robert Bosch Gmbh | A fuel injector having a fuel channel with optimized durability |
Also Published As
Publication number | Publication date |
---|---|
WO2006089817A1 (en) | 2006-08-31 |
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Legal Events
Date | Code | Title | Description |
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8139 | Disposal/non-payment of the annual fee |