DE10361761A1 - Fuel injector - Google Patents
Fuel injector Download PDFInfo
- Publication number
- DE10361761A1 DE10361761A1 DE2003161761 DE10361761A DE10361761A1 DE 10361761 A1 DE10361761 A1 DE 10361761A1 DE 2003161761 DE2003161761 DE 2003161761 DE 10361761 A DE10361761 A DE 10361761A DE 10361761 A1 DE10361761 A1 DE 10361761A1
- Authority
- DE
- Germany
- Prior art keywords
- valve needle
- anchor
- valve
- fuel injection
- 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- Withdrawn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 46
- 238000002347 injection Methods 0.000 claims abstract description 31
- 239000007924 injection Substances 0.000 claims abstract description 31
- 238000002485 combustion reaction Methods 0.000 claims abstract description 9
- 238000007789 sealing Methods 0.000 claims abstract description 7
- 238000007906 compression Methods 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000007373 indentation Methods 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 230000015556 catabolic process Effects 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000009189 diving Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000036316 preload 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
- 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
- F02M51/061—Injectors peculiar thereto with means directly operating the valve needle using electromagnetic operating means
- F02M51/0625—Injectors peculiar thereto with means directly operating the valve needle using electromagnetic operating means characterised by arrangement of mobile armatures
- F02M51/0664—Injectors peculiar thereto with means directly operating the valve needle using electromagnetic operating means characterised by arrangement of mobile armatures having a cylindrically or partly cylindrically shaped armature, e.g. entering the winding; having a plate-shaped or undulated armature entering the winding
- F02M51/0671—Injectors peculiar thereto with means directly operating the valve needle using electromagnetic operating means characterised by arrangement of mobile armatures having a cylindrically or partly cylindrically shaped armature, e.g. entering the winding; having a plate-shaped or undulated armature entering the winding the armature having an elongated valve body attached thereto
- F02M51/0682—Injectors peculiar thereto with means directly operating the valve needle using electromagnetic operating means characterised by arrangement of mobile armatures having a cylindrically or partly cylindrically shaped armature, e.g. entering the winding; having a plate-shaped or undulated armature entering the winding the armature having an elongated valve body attached thereto the body being hollow and its interior communicating with the 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
- F02M51/00—Fuel-injection apparatus characterised by being operated electrically
- F02M51/06—Injectors peculiar thereto with means directly operating the valve needle
- F02M51/061—Injectors peculiar thereto with means directly operating the valve needle using electromagnetic operating means
- F02M51/0625—Injectors peculiar thereto with means directly operating the valve needle using electromagnetic operating means characterised by arrangement of mobile armatures
- F02M51/0664—Injectors peculiar thereto with means directly operating the valve needle using electromagnetic operating means characterised by arrangement of mobile armatures having a cylindrically or partly cylindrically shaped armature, e.g. entering the winding; having a plate-shaped or undulated armature entering the winding
- F02M51/0685—Injectors peculiar thereto with means directly operating the valve needle using electromagnetic operating means characterised by arrangement of mobile armatures having a cylindrically or partly cylindrically shaped armature, e.g. entering the winding; having a plate-shaped or undulated armature entering the winding the armature and the valve being allowed to move relatively to each other or not being attached to each other
-
- 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
- F02M2200/30—Fuel-injection apparatus having mechanical parts, the movement of which is damped
- F02M2200/306—Fuel-injection apparatus having mechanical parts, the movement of which is damped using mechanical 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
- F02M2200/80—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
-
- 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
- F02M2200/8084—Fuel injection apparatus manufacture, repair or assembly involving welding or soldering
-
- 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
- F02M2200/85—Mounting of fuel injection apparatus
- F02M2200/852—Mounting of fuel injection apparatus provisions for mounting the fuel injection apparatus in a certain orientation, e.g. markings or notches
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Manufacturing & Machinery (AREA)
- Fuel-Injection Apparatus (AREA)
Abstract
Ein Brennstoffeinspritzventil (1), insbesondere zum direkten Einspritzen von Brennstoff in den Brennraum einer gemischverdichtenden, fremdgezündeten Brennkraftmaschine, umfaßt einen Anker (20), der mit einer Magnetspule (10) zusammenwirkt, und eine kraftschlüssig mit dem Anker (20) verbundene Ventilnadel (3), an der ein Ventilschließkörper (4) vorgesehen ist, der zusammen mit einer Ventilsitzfläche (6) einen Dichtsitz bildet. Die Ventilnadel (3) ist gestuft durch Tiefziehen herstellbar, und zwischen dem Anker (20) und einer Stufe (35) der gestuften Ventilnadel (3) ist eine Vorhubfeder (15) angeordnet.A fuel injection valve (1), in particular for direct injection of fuel into the combustion chamber of a mixture-compressing, spark-ignited internal combustion engine, comprises an armature (20) which cooperates with a magnet coil (10) and a valve needle (3) connected in a non-positive manner to the armature (3) ), on which a valve closing body (4) is provided, which forms a sealing seat together with a valve seat surface (6). The valve needle (3) can be produced in a stepped manner by deep drawing, and a prestroke spring (15) is arranged between the armature (20) and a step (35) of the stepped valve needle (3).
Description
Stand der TechnikState of technology
Die Erfindung geht aus von einem Brennstoffeinspritzventil nach der Gattung des Anspruchs 1.The The invention is based on a fuel injection valve after Genus of claim 1.
Beispielsweise
ist aus der
Nachteilig
an dem aus der
Vorteile der ErfindungAdvantages of invention
Das erfindungsgemäße Brennstoffeinspritzventil mit den kennzeichnenden Merkmalen des Hauptanspruchs hat demgegenüber den Vorteil, daß die Ventilnadel in einfacher Weise durch Tiefziehen gestuft herstellbar ist, so daß sich an einer Stufe der Ventilnadel ohne weitere Mitnehmerflansche eine die Öffnungsdynamik positiv beeinflussende Vorhubfeder angeordnet werden kann.The Fuel injection valve according to the invention with the characterizing features of the main claim has the Advantage that the Valve needle produced in a simple manner by deep drawing stepped is, so that at one stage of the valve needle without further Mitnehmerflansche a the opening dynamics positively influencing Vorhubfeder can be arranged.
Durch die in den Unteransprüchen aufgeführten Maßnahmen sind vorteilhafte Weiterbildungen des im Hauptanspruch angegebenen Brennstoffeinspritzventils möglich.By in the subclaims listed activities are advantageous developments of the specified in the main claim Fuel injection valve possible.
Weiterhin ist von Vorteil, daß die Vorhubfeder als Spiral-, Teller- oder Wellringfeder in einfacher Weise herstellbar ist.Farther is an advantage that the Vorhubfeder as spiral, plate or corrugated spring in a simple manner can be produced.
Vorteilhafterweise kann das aus Anker, Vorhubfeder, Ventilnadel und Ankeranschlag bestehende Gesamtbauteil mit maximal einer Schweißnaht vormontiert werden.advantageously, This can consist of anchor, preload spring, valve pin and anchor stop Total component to be pre-assembled with a maximum of one weld.
Von Vorteil ist weiterhin, daß die Ventilnadel eine Verdrehfixierung aufweist, welche Hubänderungen entgegenwirkt. Dabei greift eine Auswölbung der Ventilnadel in einfacher Weise in eine Einbuchtung des Ankers ein.From Another advantage is that the Valve needle has a Verdrehfixierung, which stroke changes counteracts. In this case, a bulge of the valve needle engages easier Insert into an indentation of the anchor.
Zeichnungdrawing
Ausführungsbeispiele der Erfindung sind in der Zeichnung vereinfacht dargestellt und in der nachfolgenden Beschreibung näher erläutert. Es zeigen:embodiments The invention are shown in simplified form in the drawing and explained in more detail in the following description. Show it:
Beschreibung der Ausführungsbeispieledescription the embodiments
Ein
Brennstoffeinspritzventil
Das
Brennstoffeinspritzventil
Die
Ventilnadel
In
der Ventilnadel
Der
Brennstoff, welcher über
eine zentrale Brennstoffzufuhr
Im
Ruhezustand des Brennstoffeinspritzventils
Nach
Durchlaufen des Vorhubs entgegen der Kraft der Vorhubfeder
Wird
der Spulenstrom abgeschaltet, fällt
der Anker
Eine
derartig ausgebildete Ventilnadel
Zusätzlich zur
Verbesserung der Öffnungsdynamik
bewirkt die Vorhubfeder
Der
Ankeranschlag
In
Alternativ
kann auch, wie in
Weiterhin
weist die Ventilnadel
Die
Erfindung ist nicht auf die dargestellten Ausführungsbeispiele beschränkt und
auch für
andere Formen von Ankern
Claims (8)
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE2003161761 DE10361761A1 (en) | 2003-12-29 | 2003-12-29 | Fuel injector |
| EP20040106142 EP1550804B1 (en) | 2003-12-29 | 2004-11-29 | Fuel injection valve |
| DE200450002949 DE502004002949D1 (en) | 2003-12-29 | 2004-11-29 | Fuel injector |
| JP2004378096A JP2005195015A (en) | 2003-12-29 | 2004-12-27 | Fuel injection valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE2003161761 DE10361761A1 (en) | 2003-12-29 | 2003-12-29 | Fuel injector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE10361761A1 true DE10361761A1 (en) | 2005-07-28 |
Family
ID=34559784
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE2003161761 Withdrawn DE10361761A1 (en) | 2003-12-29 | 2003-12-29 | Fuel injector |
| DE200450002949 Expired - Lifetime DE502004002949D1 (en) | 2003-12-29 | 2004-11-29 | Fuel injector |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE200450002949 Expired - Lifetime DE502004002949D1 (en) | 2003-12-29 | 2004-11-29 | Fuel injector |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP1550804B1 (en) |
| JP (1) | JP2005195015A (en) |
| DE (2) | DE10361761A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102005052255B4 (en) * | 2005-11-02 | 2020-12-17 | Robert Bosch Gmbh | Fuel injector |
| WO2025159961A1 (en) * | 2024-01-23 | 2025-07-31 | Cummins Inc. | Fuel system components and method of fabricating the same |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4790441B2 (en) | 2006-02-17 | 2011-10-12 | 日立オートモティブシステムズ株式会社 | Electromagnetic fuel injection valve and method of assembling the same |
| JP4576345B2 (en) | 2006-02-17 | 2010-11-04 | 日立オートモティブシステムズ株式会社 | Electromagnetic fuel injection valve |
| JP4211814B2 (en) | 2006-07-13 | 2009-01-21 | 株式会社日立製作所 | Electromagnetic fuel injection valve |
| DE102007050817A1 (en) * | 2007-10-24 | 2009-04-30 | Robert Bosch Gmbh | Electromagnetically actuated valve |
| EP2527637B1 (en) | 2011-05-23 | 2014-10-08 | Continental Automotive GmbH | Injector for injecting fluid |
| EP2535552B1 (en) | 2011-06-15 | 2015-02-25 | Continental Automotive GmbH | Valve assembly for an injection valve and injection valve |
| KR20150006044A (en) * | 2012-05-08 | 2015-01-15 | 콘티넨탈 오토모티브 게엠베하 | Valve assembly for an injection valve and injection valve |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3843862A1 (en) * | 1988-12-24 | 1990-06-28 | Bosch Gmbh Robert | ELECTROMAGNETICALLY ACTUABLE VALVE |
| DE10065528A1 (en) * | 2000-12-28 | 2002-07-04 | Bosch Gmbh Robert | Fuel injector |
| DE10108945A1 (en) * | 2001-02-24 | 2002-09-05 | Bosch Gmbh Robert | Fuel injector |
| DE10136808A1 (en) * | 2001-07-27 | 2003-02-13 | Bosch Gmbh Robert | IC engine fuel injection valve, has magnetic coils and two cooperating armatures with respective positioning springs between latter and valve needle flanges |
| DE10142302A1 (en) * | 2001-08-29 | 2003-03-20 | Bosch Gmbh Robert | Fuel injection valve, for the direct fuel injection at an IC motor, has a guide sleeve for the armature return spring, within an axial recess at the valve needle to give a force fit bond with the armature and a firm seating for the spring |
-
2003
- 2003-12-29 DE DE2003161761 patent/DE10361761A1/en not_active Withdrawn
-
2004
- 2004-11-29 EP EP20040106142 patent/EP1550804B1/en not_active Expired - Lifetime
- 2004-11-29 DE DE200450002949 patent/DE502004002949D1/en not_active Expired - Lifetime
- 2004-12-27 JP JP2004378096A patent/JP2005195015A/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102005052255B4 (en) * | 2005-11-02 | 2020-12-17 | Robert Bosch Gmbh | Fuel injector |
| WO2025159961A1 (en) * | 2024-01-23 | 2025-07-31 | Cummins Inc. | Fuel system components and method of fabricating the same |
Also Published As
| Publication number | Publication date |
|---|---|
| DE502004002949D1 (en) | 2007-04-05 |
| EP1550804B1 (en) | 2007-02-21 |
| EP1550804A1 (en) | 2005-07-06 |
| JP2005195015A (en) | 2005-07-21 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 8139 | Disposal/non-payment of the annual fee |