DE10257895A1 - Fuel injection valve for internal combustion engine, has piezoelectric or magnetostrictive actuator opening valve body in nozzle tip and has fuel feed tube running parallel to actuator body - Google Patents
Fuel injection valve for internal combustion engine, has piezoelectric or magnetostrictive actuator opening valve body in nozzle tip and has fuel feed tube running parallel to actuator body Download PDFInfo
- Publication number
- DE10257895A1 DE10257895A1 DE2002157895 DE10257895A DE10257895A1 DE 10257895 A1 DE10257895 A1 DE 10257895A1 DE 2002157895 DE2002157895 DE 2002157895 DE 10257895 A DE10257895 A DE 10257895A DE 10257895 A1 DE10257895 A1 DE 10257895A1
- Authority
- DE
- Germany
- Prior art keywords
- fuel injection
- injection valve
- fuel
- fuel injector
- actuator
- 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- Withdrawn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
- 239000000446 fuel Substances 0.000 title claims abstract description 60
- 238000002347 injection Methods 0.000 title claims abstract description 19
- 239000007924 injection Substances 0.000 title claims abstract description 19
- 238000002485 combustion reaction Methods 0.000 title claims description 4
- 229910000831 Steel Inorganic materials 0.000 claims description 3
- 230000004323 axial length Effects 0.000 claims description 3
- 238000007789 sealing Methods 0.000 claims description 3
- 239000010959 steel Substances 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 3
- 238000011109 contamination Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 101100491335 Caenorhabditis elegans mat-2 gene Proteins 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000003749 cleanliness Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 230000005281 excited state Effects 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 230000036316 preload Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
- 238000009736 wetting 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
- F02M55/00—Fuel-injection apparatus characterised by their fuel conduits or their venting means; Arrangements of conduits between fuel tank and pump F02M37/00
-
- 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
- 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
-
- 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
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 geht aus von einem Brennstoffeinspritzventil nach der Gattung des Hauptanspruchs.The invention is based on one Fuel injection valve according to the type of the main claim.
Aus der
Nachteilig an dem aus der Druckschrift
Weiterhin ist die Bohrung einerseits bedingt durch den Herstellungsprozeß mit Verschmutzungen wie Bohrrückständen versehen, andererseits bedingt durch das Material des Gehäuses sowie der verhältnismäßig rauhen Oberfläche schlecht zu reinigen. Dadurch ist der zuzumessende Stoff einem hohen Verschmutzungsgrad unterworfen, welcher zu Ablagerungen und zu nachfolgenden Fehlfunktionen des Ventils führen kann.Furthermore, the hole is on the one hand provided with contamination such as drilling residues due to the manufacturing process, on the other hand due to the material of the housing and the relatively rough surface difficult to clean. As a result, the substance to be measured has a high degree of contamination subject to deposits and subsequent malfunctions of the valve can.
Das erfindungsgemäße Brennstoffeinspritzventil mit den kennzeichnenden Merkmalen des Hauptanspruchs hat demgegenüber den Vorteil, daß das Rohr, welches den Brennstoff von der Zufuhr zur Ventilgruppe führt, separat herstellbar und an dem Brennstoffeinspritzventil anbringbar ist, wodurch bei geeigneter Materialwahl ein höheres Sauberkeitsniveau des Brennstoffs durch eine glatte Oberfläche mit geringerer Benetzung und das Fehlen eines Totvolumens erzielt werden kann.The fuel injector according to the invention in contrast, with the characteristic features of the main claim Advantage that Pipe, which leads the fuel from the supply to the valve group, separately can be manufactured and attached to the fuel injector, whereby with a suitable choice of materials a higher level of cleanliness of the Fuel through a smooth surface with less wetting and the lack of dead volume can be achieved.
Durch die in den 3Unteransprüchen aufgeführten Maßnahmen sind vorteilhafte Weiterbildungen und Verbesserungen des im Hauptanspruch angegebenen Brennstoffeinspritzventils möglich.Through the measures listed in the sub-claims are advantageous developments and improvements of the main claim specified fuel injector possible.
Von Vorteil ist dabei insbesondere die gemeinsame integrierte Anordnung des Brennstoffeinspritzventils und des Rohres in einem gemeinsamen Gehäuse.This is particularly advantageous the common integrated arrangement of the fuel injector and the tube in a common housing.
Vorteilhafterweise ist das Rohr aus Stahl gefertigt und weist einen Innendurchmesser von ca. 3 mm bei einer Wandstärke von ca. 0,4 mm auf.The tube is advantageously made of Made of steel and has an inner diameter of approx. 3 mm a wall thickness of about 0.4 mm.
In einer vorteilhaften Ausführungsform erstreckt sich das Rohr achsparallel zum Brennstoffeinspritzventil unter Berücksichtigung der zentralen Brennstoffzufuhr, indem das Rohr gebogen nach radial außen an das Gehäuse verlegt ist.In an advantageous embodiment the pipe extends axially parallel to the fuel injector considering the central fuel supply by bending the pipe radially Outside to the housing is misplaced.
Eine weitere vorteilhafte Ausführungsform sieht eine auf gesamter Länge achsparallele Führung eines geraden Rohres bei einer entsprechenden dezentralen Anordnung des Zulaufstutzens vor. Dies ist besonders vorteilhaft, da leicht herstellbar.A further advantageous embodiment provides one along the entire length axially parallel guidance of a straight pipe with a corresponding decentralized arrangement of the Inlet nozzle before. This is particularly advantageous because it is easy to manufacture.
Ausführungsbeispiele der Erfindung sind in der Zeichnung vereinfacht dargestellt und in der nachfolgenden Beschreibung näher erläutert. Es zeigen:Embodiments of the invention are shown in simplified form in the drawing and in the following Description closer explained. Show it:
Das Brennstoffeinspritzventil
Ein Betätigungselement
Eine Ventilnadel
An der Ventilnadel
In dem in
Erfindungsgemäß weist das Brennstoffeinspritzventil
Das Rohr
Im Gegensatz zu dem in
Die Erfindung ist nicht auf die dargestellten Ausführungsbeispiele
beschränkt
und auch für
beliebige andere Bauweisen von Brennstoffeinspritzventilen
Claims (9)
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE2002157895 DE10257895A1 (en) | 2002-12-11 | 2002-12-11 | Fuel injection valve for internal combustion engine, has piezoelectric or magnetostrictive actuator opening valve body in nozzle tip and has fuel feed tube running parallel to actuator body |
DE50313083T DE50313083D1 (en) | 2002-12-11 | 2003-07-04 | FUEL INJECTION VALVE |
EP03812549A EP1576279B1 (en) | 2002-12-11 | 2003-07-04 | Fuel injection valve |
PCT/DE2003/002238 WO2004053324A1 (en) | 2002-12-11 | 2003-07-04 | Fuel injection valve |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE2002157895 DE10257895A1 (en) | 2002-12-11 | 2002-12-11 | Fuel injection valve for internal combustion engine, has piezoelectric or magnetostrictive actuator opening valve body in nozzle tip and has fuel feed tube running parallel to actuator body |
Publications (1)
Publication Number | Publication Date |
---|---|
DE10257895A1 true DE10257895A1 (en) | 2004-06-24 |
Family
ID=32336206
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE2002157895 Withdrawn DE10257895A1 (en) | 2002-12-11 | 2002-12-11 | Fuel injection valve for internal combustion engine, has piezoelectric or magnetostrictive actuator opening valve body in nozzle tip and has fuel feed tube running parallel to actuator body |
DE50313083T Expired - Lifetime DE50313083D1 (en) | 2002-12-11 | 2003-07-04 | FUEL INJECTION VALVE |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE50313083T Expired - Lifetime DE50313083D1 (en) | 2002-12-11 | 2003-07-04 | FUEL INJECTION VALVE |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP1576279B1 (en) |
DE (2) | DE10257895A1 (en) |
WO (1) | WO2004053324A1 (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102005042342A1 (en) * | 2005-09-06 | 2007-03-15 | Siemens Ag | Fuel e.g. diesel fuel, injection valve for common-rail injection system, has fuel pipe arranged as separate component in housing, and with connection area to connect another pipe, where area is guided by fuel storage outside of housing |
DE102008056519A1 (en) * | 2008-11-08 | 2010-05-12 | Man Diesel Se | Sealing system for sealing high pressure sealing area between components and component section of fuel-injection valve of combustion engine, has channels and channel section, which are integrated in components and component sections |
DE102009055362A1 (en) | 2009-12-29 | 2011-06-30 | Robert Bosch GmbH, 70469 | Injection valve for a fluid |
DE102009055370A1 (en) | 2009-12-29 | 2011-06-30 | Robert Bosch GmbH, 70469 | Injection valve for a fluid |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102005046666B4 (en) * | 2005-09-29 | 2015-03-26 | Robert Bosch Gmbh | Fuel injector |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6364221B1 (en) * | 1999-09-29 | 2002-04-02 | Siemens Automotive Corporation | Electronic fuel injector actuated by magnetostrictive transduction |
US20020139863A1 (en) * | 2000-10-11 | 2002-10-03 | Jack Lorraine | Compensator assembly having a flexible diaphragm and an internal filling tube for a fuel injector and method |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19540155C2 (en) * | 1995-10-27 | 2000-07-13 | Daimler Chrysler Ag | Servo valve for an injection nozzle |
DE10110678A1 (en) * | 2001-03-06 | 2002-10-02 | Siemens Ag | Fuel dosing device for petrol engine has injector housing fully enclosing injector drive, pipe enclosing injector housing and connected to injector housing on side remote from valve housing |
US6499471B2 (en) * | 2001-06-01 | 2002-12-31 | Siemens Automotive Corporation | Hydraulic compensator for a piezoelectrical fuel injector |
-
2002
- 2002-12-11 DE DE2002157895 patent/DE10257895A1/en not_active Withdrawn
-
2003
- 2003-07-04 EP EP03812549A patent/EP1576279B1/en not_active Expired - Lifetime
- 2003-07-04 DE DE50313083T patent/DE50313083D1/en not_active Expired - Lifetime
- 2003-07-04 WO PCT/DE2003/002238 patent/WO2004053324A1/en not_active Application Discontinuation
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6364221B1 (en) * | 1999-09-29 | 2002-04-02 | Siemens Automotive Corporation | Electronic fuel injector actuated by magnetostrictive transduction |
US20020139863A1 (en) * | 2000-10-11 | 2002-10-03 | Jack Lorraine | Compensator assembly having a flexible diaphragm and an internal filling tube for a fuel injector and method |
Cited By (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102005042342A1 (en) * | 2005-09-06 | 2007-03-15 | Siemens Ag | Fuel e.g. diesel fuel, injection valve for common-rail injection system, has fuel pipe arranged as separate component in housing, and with connection area to connect another pipe, where area is guided by fuel storage outside of housing |
DE102005042342B4 (en) * | 2005-09-06 | 2009-04-02 | Continental Automotive Gmbh | Injection valve with separate fuel line |
DE102008056519A1 (en) * | 2008-11-08 | 2010-05-12 | Man Diesel Se | Sealing system for sealing high pressure sealing area between components and component section of fuel-injection valve of combustion engine, has channels and channel section, which are integrated in components and component sections |
DE102009055362A1 (en) | 2009-12-29 | 2011-06-30 | Robert Bosch GmbH, 70469 | Injection valve for a fluid |
DE102009055370A1 (en) | 2009-12-29 | 2011-06-30 | Robert Bosch GmbH, 70469 | Injection valve for a fluid |
WO2011080002A1 (en) | 2009-12-29 | 2011-07-07 | Robert Bosch Gmbh | Injection valve for a fluid |
WO2011079987A1 (en) | 2009-12-29 | 2011-07-07 | Robert Bosch Gmbh | Injection valve for a fluid |
CN102713238A (en) * | 2009-12-29 | 2012-10-03 | 罗伯特·博世有限公司 | Injection valve for fluid |
US8757512B2 (en) | 2009-12-29 | 2014-06-24 | Robert Bosch Gmbh | Injector for a fluid |
CN102713238B (en) * | 2009-12-29 | 2014-11-26 | 罗伯特·博世有限公司 | Injection valve for fluid |
US9091237B2 (en) | 2009-12-29 | 2015-07-28 | Robert Bosch Gmbh | Injector for a fluid |
Also Published As
Publication number | Publication date |
---|---|
EP1576279B1 (en) | 2010-09-08 |
DE50313083D1 (en) | 2010-10-21 |
WO2004053324A1 (en) | 2004-06-24 |
EP1576279A1 (en) | 2005-09-21 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
OM8 | Search report available as to paragraph 43 lit. 1 sentence 1 patent law | ||
8141 | Disposal/no request for examination |