DE10310789A1 - Fuel injection valve for IC engine fuel injection system has fuel feed with connection point and pipe extending to foot of actuator for movement of valve closure relative to valve seat surface - Google Patents
Fuel injection valve for IC engine fuel injection system has fuel feed with connection point and pipe extending to foot of actuator for movement of valve closure relative to valve seat surface Download PDFInfo
- Publication number
- DE10310789A1 DE10310789A1 DE2003110789 DE10310789A DE10310789A1 DE 10310789 A1 DE10310789 A1 DE 10310789A1 DE 2003110789 DE2003110789 DE 2003110789 DE 10310789 A DE10310789 A DE 10310789A DE 10310789 A1 DE10310789 A1 DE 10310789A1
- Authority
- DE
- Germany
- Prior art keywords
- fuel injection
- actuator
- injection valve
- valve according
- fuel
- 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- Withdrawn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 86
- 238000002347 injection Methods 0.000 title claims abstract description 35
- 239000007924 injection Substances 0.000 title claims abstract description 35
- 239000004033 plastic Substances 0.000 claims abstract description 6
- 229920003023 plastic Polymers 0.000 claims abstract description 6
- 238000002485 combustion reaction Methods 0.000 claims description 6
- 238000005538 encapsulation Methods 0.000 claims description 5
- 239000011248 coating agent Substances 0.000 claims description 3
- 238000000576 coating method Methods 0.000 claims description 3
- 238000007789 sealing Methods 0.000 claims description 3
- 239000006223 plastic coating Substances 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000009434 installation Methods 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- 230000005284 excitation Effects 0.000 description 2
- 238000011144 upstream manufacturing Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000007765 extrusion coating Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000036316 preload Effects 0.000 description 1
- 230000010349 pulsation Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000003466 welding 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
- 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
- F02M2200/90—Selection of particular materials
- F02M2200/9015—Elastomeric or plastic materials
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
Stand der TechnikState of technology
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
Das erfindungsgemäße Brennstoffeinspritzventil mit den kennzeichnenden Merkmalen des Hauptanspruchs hat demgegenüber den Vorteil, daß der Brennstoffzulauf zentral angeordnet und modular aus einem Anschlußstutzen, einem Rohr und dem Aktorfuß des Aktors aufgebaut ist, wodurch der Brennstoff durch den Innenraum des Brennstoffeinspritzventils geführt wird und ein massives Gehäuse mit einer Tieflochbohrung entfallen kann. Eine Kunststoffumspritzung des Brennstoffzulaufs mit angeformten Befestigungs- und Kontaktanschlüssen ist dabei in einfacher und kostengünstiger Weise herstellbar.The fuel injector according to the invention in contrast, with the characteristic features of the main claim Advantage that the Fuel feed arranged centrally and modularly from a connection piece, a pipe and the actuator foot of the Actuator is built, which allows the fuel through the interior of the fuel injector and a solid housing with a deep hole can be omitted. A plastic coating of the fuel supply with molded fastening and contact connections in easier and cheaper Way to make.
Durch die in den Unteransprüchen aufgeführten Maßnahmen sind vorteilhafte Weiterentwicklungen des im Hauptanspruch angegebenen Brennstoffeinspritzventils möglich.By the measures listed in the subclaims are advantageous developments of the specified in the main claim Fuel injector possible.
Vorteilhafterweise sind die einzelnen Komponenten des Brennstoffzulaufs durch Drehen hergestellt und mittels Schweißen miteinander verbunden.The individual are advantageous Components of the fuel feed produced by turning and by means of welding connected with each other.
In einer weiteren vorteilhaften Ausführungsvariante ist der Brennstoffzulauf zweiteilig aufgebaut, wobei die einzelnen Komponenten durch Drehen oder Tiefziehen herstellbar und dann im Bereich des Rohres miteinander verschweißt sind.In a further advantageous embodiment variant the fuel supply is constructed in two parts, the individual Components can be produced by turning or deep drawing and then in Area of the tube are welded together.
Der Brennstoffzulauf ist mittels Labyrinthdichtungen gegen die Kunststoffumspritzung abgedichtet.The fuel supply is by means of Labyrinth seals sealed against plastic encapsulation.
Von Vorteil ist außerdem, daß Bohrungen im Aktorfuß eine Umspritzung des Aktors zur Wärmeleitung nach der Vormontage erlauben.It is also an advantage that holes one in the actuator foot Overmolding of the actuator for heat conduction allow after pre-assembly.
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:
Beschreibung der Ausführungsbeispieledescription of the embodiments
Nachfolgend werden Ausführungsbeispiele der Erfindung beispielhaft beschrieben. Übereinstimmende Bauteile sind dabei in allen Figuren mit übereinstimmenden Bezugszeichen versehen.Exemplary embodiments of the Invention described by way of example. Matching components are doing so in all figures with matching Provide reference numerals.
Bevor die Erfindung anhand bevorzugter Ausführungsformen
näher beschrieben
wird, wird zum besseren Verständnis
ein Brennstoffeinspritzventil gemäß dem Stand der Technik in
seinen wesentlichen Bauteilen kurz erläutert. Das in
Das Brennstoffeinspritzventil
Das Gehäuse
Nachteilig an diesem Herstellungsverfahren für die Bohrung
Der Brennstoffzulauf
Die vormontierten Bauteile
Der durch den Anschlußstutzen
Der Vorteil einer Brennstoffzufuhr
Das Brennstoffeinspritzventil
Der Aktorfuß weist neben den radialen
Bohrungen
In
Die Erfindung ist nicht auf die dargestellten Ausführungsbeispiele
beschränkt
und für
beliebige Bauformen von Brennstoffeinspritzventilen
Claims (22)
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE2003110789 DE10310789A1 (en) | 2003-03-12 | 2003-03-12 | Fuel injection valve for IC engine fuel injection system has fuel feed with connection point and pipe extending to foot of actuator for movement of valve closure relative to valve seat surface |
| EP04704534A EP1606508B1 (en) | 2003-03-12 | 2004-01-23 | Fuel injection valve |
| DE502004010587T DE502004010587D1 (en) | 2003-03-12 | 2004-01-23 | FUEL INJECTION VALVE |
| PCT/DE2004/000099 WO2004081368A1 (en) | 2003-03-12 | 2004-01-23 | Fuel injection valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE2003110789 DE10310789A1 (en) | 2003-03-12 | 2003-03-12 | Fuel injection valve for IC engine fuel injection system has fuel feed with connection point and pipe extending to foot of actuator for movement of valve closure relative to valve seat surface |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE10310789A1 true DE10310789A1 (en) | 2004-09-23 |
Family
ID=32892080
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE2003110789 Withdrawn DE10310789A1 (en) | 2003-03-12 | 2003-03-12 | Fuel injection valve for IC engine fuel injection system has fuel feed with connection point and pipe extending to foot of actuator for movement of valve closure relative to valve seat surface |
| DE502004010587T Expired - Lifetime DE502004010587D1 (en) | 2003-03-12 | 2004-01-23 | FUEL INJECTION VALVE |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE502004010587T Expired - Lifetime DE502004010587D1 (en) | 2003-03-12 | 2004-01-23 | FUEL INJECTION VALVE |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP1606508B1 (en) |
| DE (2) | DE10310789A1 (en) |
| WO (1) | WO2004081368A1 (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007023048A1 (en) * | 2005-08-25 | 2007-03-01 | Robert Bosch Gmbh | Piezo actuator with a plug device and a method for the production thereof |
| EP2031669A1 (en) | 2007-08-28 | 2009-03-04 | Robert Bosch GmbH | Piezo actuator module having a piezo actuator sleeve and method for its manufacture |
| EP2090771A1 (en) * | 2008-02-13 | 2009-08-19 | Robert Bosch Gmbh | Fuel injector with a directly controlled valve needle |
| WO2013139546A1 (en) * | 2012-03-19 | 2013-09-26 | Robert Bosch Gmbh | Overmolded component with a labyrinth seal |
| DE102005033138B4 (en) * | 2005-07-15 | 2017-12-14 | Robert Bosch Gmbh | Fuel injector |
| DE102020213842A1 (en) | 2020-11-04 | 2022-05-05 | Robert Bosch Gesellschaft mit beschränkter Haftung | Injection valve for a water injection system of an internal combustion engine and water injection system with such an injection valve |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102005015256A1 (en) * | 2005-04-04 | 2006-10-05 | Robert Bosch Gmbh | Piezoelectric actuator with labyrinth seal for use in fuel injection valve, has plastic sealing formed with projections that are inserted and completely fill circulating grooves formed on head or base portion of piezoelectric component |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19827136A1 (en) * | 1998-06-18 | 1999-12-23 | Bosch Gmbh Robert | Fuel injector |
| DE10217361A1 (en) * | 2001-04-19 | 2002-12-05 | Denso Corp | Piezoelectric element and injector provided with it |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3533085A1 (en) | 1985-09-17 | 1987-03-26 | Bosch Gmbh Robert | METERING VALVE FOR DOSING LIQUIDS OR GASES |
| US5494225A (en) * | 1994-08-18 | 1996-02-27 | Siemens Automotive Corporation | Shell component to protect injector from corrosion |
| DE19503821A1 (en) * | 1995-02-06 | 1996-08-08 | Bosch Gmbh Robert | Electromagnetically actuated valve |
| DE19534445C2 (en) * | 1995-09-16 | 1998-07-30 | Man Nutzfahrzeuge Ag | Injection valve for internal combustion engines |
| US5820099A (en) * | 1997-05-20 | 1998-10-13 | Siemens Automotive Corporation | Fluid migration inhibitor for fuel injectors |
| DE19843570A1 (en) * | 1998-09-23 | 2000-03-30 | Bosch Gmbh Robert | Fuel injector |
| DE19912665A1 (en) * | 1999-03-20 | 2000-09-21 | Bosch Gmbh Robert | Fuel injector |
| DE19932760A1 (en) * | 1999-07-14 | 2001-01-18 | Bosch Gmbh Robert | Fuel injector |
-
2003
- 2003-03-12 DE DE2003110789 patent/DE10310789A1/en not_active Withdrawn
-
2004
- 2004-01-23 EP EP04704534A patent/EP1606508B1/en not_active Expired - Lifetime
- 2004-01-23 WO PCT/DE2004/000099 patent/WO2004081368A1/en not_active Ceased
- 2004-01-23 DE DE502004010587T patent/DE502004010587D1/en not_active Expired - Lifetime
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19827136A1 (en) * | 1998-06-18 | 1999-12-23 | Bosch Gmbh Robert | Fuel injector |
| DE10217361A1 (en) * | 2001-04-19 | 2002-12-05 | Denso Corp | Piezoelectric element and injector provided with it |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102005033138B4 (en) * | 2005-07-15 | 2017-12-14 | Robert Bosch Gmbh | Fuel injector |
| WO2007023048A1 (en) * | 2005-08-25 | 2007-03-01 | Robert Bosch Gmbh | Piezo actuator with a plug device and a method for the production thereof |
| EP2031669A1 (en) | 2007-08-28 | 2009-03-04 | Robert Bosch GmbH | Piezo actuator module having a piezo actuator sleeve and method for its manufacture |
| EP2090771A1 (en) * | 2008-02-13 | 2009-08-19 | Robert Bosch Gmbh | Fuel injector with a directly controlled valve needle |
| WO2013139546A1 (en) * | 2012-03-19 | 2013-09-26 | Robert Bosch Gmbh | Overmolded component with a labyrinth seal |
| CN104246206A (en) * | 2012-03-19 | 2014-12-24 | 罗伯特·博世有限公司 | Overmolded component with a labyrinth seal |
| DE102020213842A1 (en) | 2020-11-04 | 2022-05-05 | Robert Bosch Gesellschaft mit beschränkter Haftung | Injection valve for a water injection system of an internal combustion engine and water injection system with such an injection valve |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2004081368A1 (en) | 2004-09-23 |
| DE502004010587D1 (en) | 2010-02-11 |
| EP1606508A1 (en) | 2005-12-21 |
| EP1606508B1 (en) | 2009-12-30 |
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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 |