DE102007049963A1 - Fuel injector - Google Patents
Fuel injector Download PDFInfo
- Publication number
- DE102007049963A1 DE102007049963A1 DE200710049963 DE102007049963A DE102007049963A1 DE 102007049963 A1 DE102007049963 A1 DE 102007049963A1 DE 200710049963 DE200710049963 DE 200710049963 DE 102007049963 A DE102007049963 A DE 102007049963A DE 102007049963 A1 DE102007049963 A1 DE 102007049963A1
- Authority
- DE
- Germany
- Prior art keywords
- fuel injection
- filter
- injection valve
- fuel
- valve according
- 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- Withdrawn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
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
- F02M61/165—Filtering elements specially adapted in fuel inlets to injector
-
- 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
- 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
- F02M61/20—Closing valves mechanically, e.g. arrangements of springs or weights or permanent magnets; Damping of valve lift
- F02M61/205—Means specially adapted for varying the spring tension or assisting the spring force to close the injection-valve, e.g. with damping of valve lift
-
- 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
- F02M2200/27—Fuel-injection apparatus with filters
-
- 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
- F02M2200/50—Arrangements of springs for valves used in fuel injectors or fuel injection pumps
- F02M2200/505—Adjusting spring tension by sliding spring seats
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)
- Fuel-Injection Apparatus (AREA)
Abstract
Das erfindungsgemäße Brennstoffeinspritzventil zeichnet sich dadurch aus, dass es einen erregbaren Aktuator in Form eines elektromagnetischen Kreises mit einer Magnetspule (1), einem äußeren Magnetkreisbauteil (11) und einem bewegbaren Anker (27) zur Betätigung eines Ventilschließkörpers (24), der mit einer an einem Ventilsitzkörper (29) vorgesehenen Ventilsitz (30) zusammenwirkt, besitzt. Zuströmseitig ist ein Anschlussstutzen (41) vorgesehen, der eine Strömungsbohrung (42) besitzt, die der Zufuhr des Brennstoffs in Richtung des Ventilsitzes (30) dient, wobei in der Strömungsbohrung (42) ein Einstellelement (43) zur Einstellung der Federvorspannung einer an dem Einstellelement (43) anliegenden Rückstellfeder (26) vorgesehen ist, das einen Brennstofffilter (44) beinhaltet. Der Brennstofffilter (44) hat einen becherförmigen Grundkörper (55), der an einem Filterboden (59) endet, wobei der Filterboden (59) umgekehrt topfförmig ausgeführt ist und mit seinem freien Bodenende (60) stromabwärts in den Anschlussstutzen (41) hineinhängt. Das Brennstoffeinspritzventil eignet sich besonders für den Einsatz in Brennstoffeinspritzanlagen von gemischverdichtendem fremdgezündeten Brennkraftmaschinen.The fuel injection valve according to the invention is characterized in that it comprises an excitable actuator in the form of an electromagnetic circuit having a magnetic coil (1), an outer magnetic circuit component (11) and a movable armature (27) for actuating a valve closing body (24), with an on a valve seat body (29) provided valve seat (30) cooperates, has. On the inflow side, a connecting piece (41) is provided which has a flow bore (42), which serves to supply the fuel in the direction of the valve seat (30), wherein in the flow bore (42) has an adjusting element (43) for adjusting the spring preload on the Adjustment (43) adjacent return spring (26) is provided, which includes a fuel filter (44). The fuel filter (44) has a cup-shaped main body (55) which ends at a filter bottom (59), wherein the filter bottom (59) is reversed cup-shaped and with its free bottom end (60) downstream in the connecting piece (41) hangs. The fuel injector is particularly suitable for use in fuel injection systems of mixture-compression spark-ignition internal combustion engines.
Description
Stand der TechnikState of the art
Die Erfindung geht aus von einem Brennstoffeinspritzventil nach der Gattung des Hauptanspruchs.The The invention is based on a fuel injection valve after Genus of the main claim.
Aus
der
Weiterhin
ist aus der
Ebenfalls
bekannt ist aus der
Nachteilig an den aus den oben genannten Druckschriften bekannten Brennstoffeinspritzventilen ist insbesondere der hohe Fertigungsaufwand, der zur Fixierung des Filters entweder an der Einstellhülse oder an dem Brennstoffeinlassstutzen anfällt. Ferner wird die metallische Einstellhülse grundsätzlich im Brennstoffeinlassstutzen eingepresst, wodurch es zu Abspanungen und Abrieb kommen kann, was zu Fehlfunktionen des Brennstoffeinspritzventils durch die Ablagerung der Partikel führen kann.adversely to the fuel injection valves known from the above-mentioned publications in particular, the high production cost, the fixation of the filter either on the adjusting sleeve or on the fuel inlet nozzle accrues. Furthermore, the metallic adjusting sleeve always pressed into the fuel inlet nozzle, which can cause chipping and abrasion, resulting in malfunction of the fuel injection valve by the deposition of the particles can lead.
Vorteile der ErfindungAdvantages of the invention
Das erfindungsgemäße Brennstoffeinspritzventil mit den kennzeichnenden Merkmalen des Hauptanspruchs hat den Vorteil, dass auf einfache und kostengünstige Art und Weise ein besonders kompakter Aufbau im Bereich des Brennstofffilters als auch in den Bereichen stromabwärts des Brennstofffilters realisierbar ist, so dass ein sehr kleines, handliches Einspritzventil entsteht. Erfindungsgemäß ist eine einfache konstruktive Lösung gegeben, bei der der Brennstofffilter ein Einstellelement zur Einstellung der Federvorspannung einer an dem Einstellelement anliegenden Rückstellfeder mit beinhaltet. Die erfindungsgemäße Konstruktion ermöglicht es zusammen mit weiteren konstruktiven Maßnahmen im Bereich des Aktuators, insbesondere eines Magnetkreises, ein Brennstoffeinspritzventil mit einer Gesamtlänge von nur < 30 mm zu fertigen.The inventive fuel injection valve with the characterizing features of the main claim has the advantage that in a simple and cost-effective manner particularly compact construction in the area of the fuel filter as also in the areas downstream of the fuel filter is feasible, leaving a very small, handy injector arises. According to the invention is a simple constructive Solution given, in which the fuel filter is an adjustment for adjusting the spring preload on the adjusting element adjacent return spring includes. The inventive Construction allows it together with other constructive Measures in the area of the actuator, in particular a magnetic circuit, a fuel injection valve with a total length of only <30 mm too finished.
Durch die in den Unteransprüchen aufgeführten Maßnahmen sind vorteilhafte Weiterbildungen und Verbesserungen des im Hauptanspruch angegebenen Brennstoffeinspritzventils möglich.By the measures listed in the dependent claims are advantageous developments and improvements of the main claim specified fuel injector possible.
Von Vorteil ist es, dass mit der erfindungsgemäßen Konstruktion des Brennstofffilters auf ansonsten übliche Einstellhülsen, die in den Brennstoffeinlassstutzen eingepresst werden, wodurch es zu einer unerwünschten Spanbildung kommen kann, ganz verzichtet werden kann. Das Einstellelement des Brennstofffilters hängt entweder berührungsfrei im Anschlussstutzen oder ist mit einer Spielpassung in den Anschlussstutzen eingeführt.From The advantage is that with the inventive Construction of the fuel filter on otherwise usual Adjustment sleeves, which are pressed into the fuel inlet port become, whereby it come to an unwanted chip formation can completely be dispensed with. The adjusting element of the fuel filter either hangs without contact in the connecting piece or is inserted with a clearance fit in the connecting piece.
Zeichnungdrawing
Ausführungsbeispiele
der Erfindung sind in der Zeichnung vereinfacht dargestellt und
in der nachfolgenden Beschreibung näher erläutert.
Es zeigt
Beschreibung der AusführungsbeispieleDescription of the embodiments
Das
in der
Der
Hülsenkörper
Stromabwärts
des Magnetkreisbauteils
Die
Betätigung des Einspritzventils erfolgt in bekannter Weise
elektromagnetisch. Zur axialen Bewegung der Ventilnadel
Der
kugelförmige Ventilschließkörper
Zuströmseitig
ist das Deckelteil
Der
Brennstofffilter
An
der Innenseite des Bodenendes
Das
erfindungsgemäße Brennstoffeinspritzventil zeichnet
sich durch einen besonders kompakten Aufbau im Bereich des Magnetkreises
sowie auch in den Bereichen stromaufwärts und stromabwärts
des Magnetkreises aus, so dass ein sehr kleines, handliches Einspritzventil
entsteht. Sowohl der Anschlussstutzen
In
Bei
den in den
ZITATE ENTHALTEN IN DER BESCHREIBUNGQUOTES INCLUDE IN THE DESCRIPTION
Diese Liste der vom Anmelder aufgeführten Dokumente wurde automatisiert erzeugt und ist ausschließlich zur besseren Information des Lesers aufgenommen. Die Liste ist nicht Bestandteil der deutschen Patent- bzw. Gebrauchsmusteranmeldung. Das DPMA übernimmt keinerlei Haftung für etwaige Fehler oder Auslassungen.This list The documents listed by the applicant have been automated generated and is solely for better information recorded by the reader. The list is not part of the German Patent or utility model application. The DPMA takes over no liability for any errors or omissions.
Zitierte PatentliteraturCited patent literature
- - DE 4325842 A1 [0002] DE 4325842 A1 [0002]
- - EP 0697064 B1 [0003] EP 0697064 B1 [0003]
- - DE 10109410 A1 [0004] - DE 10109410 A1 [0004]
Claims (12)
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE200710049963 DE102007049963A1 (en) | 2007-10-18 | 2007-10-18 | Fuel injector |
PCT/EP2008/062999 WO2009053219A1 (en) | 2007-10-18 | 2008-09-29 | Fuel injection valve |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE200710049963 DE102007049963A1 (en) | 2007-10-18 | 2007-10-18 | Fuel injector |
Publications (1)
Publication Number | Publication Date |
---|---|
DE102007049963A1 true DE102007049963A1 (en) | 2009-04-23 |
Family
ID=40122337
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE200710049963 Withdrawn DE102007049963A1 (en) | 2007-10-18 | 2007-10-18 | Fuel injector |
Country Status (2)
Country | Link |
---|---|
DE (1) | DE102007049963A1 (en) |
WO (1) | WO2009053219A1 (en) |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2426351A1 (en) * | 2010-09-02 | 2012-03-07 | Continental Automotive GmbH | Adjusting fuel filter assembly and injection valve |
EP2811152A1 (en) * | 2013-06-04 | 2014-12-10 | Continental Automotive GmbH | Filter for a fluid injection valve, fluid injection valve and method for producing a filter for a fluid injection valve |
EP2876295A1 (en) * | 2013-11-20 | 2015-05-27 | Stanadyne Corporation | Fuel injector with a debris diverter shield |
EP3037650A1 (en) * | 2014-12-22 | 2016-06-29 | Continental Automotive GmbH | Valve assembly and fluid injection valve |
EP3279462A1 (en) * | 2016-08-04 | 2018-02-07 | Continental Automotive GmbH | Filter assembly for an injection valve, valve assembly and injection valve |
WO2018177753A1 (en) * | 2017-03-27 | 2018-10-04 | Robert Bosch Gmbh | High-pressure fuel pump |
DE102020211961A1 (en) | 2020-09-24 | 2022-03-24 | Robert Bosch Gesellschaft mit beschränkter Haftung | Injector with integrated filter and method for assembling an injector |
WO2022242988A1 (en) * | 2021-05-18 | 2022-11-24 | Robert Bosch Gmbh | Injector with integrated filter |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4325842A1 (en) | 1993-07-31 | 1995-02-02 | Bosch Gmbh Robert | Fuel injection valve |
EP0697064B1 (en) | 1993-05-03 | 1997-11-12 | Siemens Automotive Corporation | Filter cartridge mounting for a top-feed fuel injector |
DE10109410A1 (en) | 2001-02-28 | 2002-09-05 | Bosch Gmbh Robert | Fuel injector |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4131535A1 (en) * | 1991-09-21 | 1993-03-25 | Bosch Gmbh Robert | ELECTROMAGNETICALLY OPERATED INJECTION VALVE |
US6328232B1 (en) * | 2000-01-19 | 2001-12-11 | Delphi Technologies, Inc. | Fuel injector spring force calibration tube with internally mounted fuel inlet filter |
EP1252438B1 (en) * | 2000-02-02 | 2007-04-11 | Siemens Automotive Corporation | Combined filter and adjuster for a fuel injector |
US6511003B2 (en) * | 2000-12-29 | 2003-01-28 | Siemens Automotive Corporation | Modular fuel injector having an integral or interchangeable inlet tube and having a terminal connector interconnecting an electromagnetic actuator with an electrical terminal |
CA2404247C (en) * | 2001-09-19 | 2006-06-20 | Filtertek Inc. | Integrated fuel filter and calibration tube for a fuel injector |
JP2007500822A (en) * | 2003-06-10 | 2007-01-18 | シーメンス ヴィディーオー オートモティヴ コーポレイション | Modular fuel injector with bipolar magnetic circuit |
DE10334785A1 (en) * | 2003-07-30 | 2005-02-24 | Robert Bosch Gmbh | Fuel injection valve and method for its assembly |
EP1806497B1 (en) * | 2006-01-10 | 2010-11-10 | Continental Automotive GmbH | Injector |
EP2000662B1 (en) * | 2007-06-04 | 2012-03-14 | Continental Automotive GmbH | Adjusting and filter arrangement for an injection valve and injection valve |
-
2007
- 2007-10-18 DE DE200710049963 patent/DE102007049963A1/en not_active Withdrawn
-
2008
- 2008-09-29 WO PCT/EP2008/062999 patent/WO2009053219A1/en active Application Filing
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0697064B1 (en) | 1993-05-03 | 1997-11-12 | Siemens Automotive Corporation | Filter cartridge mounting for a top-feed fuel injector |
DE4325842A1 (en) | 1993-07-31 | 1995-02-02 | Bosch Gmbh Robert | Fuel injection valve |
DE10109410A1 (en) | 2001-02-28 | 2002-09-05 | Bosch Gmbh Robert | Fuel injector |
Cited By (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2426351A1 (en) * | 2010-09-02 | 2012-03-07 | Continental Automotive GmbH | Adjusting fuel filter assembly and injection valve |
KR101848986B1 (en) | 2013-06-04 | 2018-04-13 | 콘티넨탈 오토모티브 게엠베하 | Filter for a fluid injection valve, fluid injection valve and method for producing a filter for a fluid injection valve |
EP2811152A1 (en) * | 2013-06-04 | 2014-12-10 | Continental Automotive GmbH | Filter for a fluid injection valve, fluid injection valve and method for producing a filter for a fluid injection valve |
WO2014195064A1 (en) * | 2013-06-04 | 2014-12-11 | Continental Automotive Gmbh | Filter for a fluid injection valve, fluid injection valve and method for producing a filter for a fluid injection valve |
CN105683558A (en) * | 2013-06-04 | 2016-06-15 | 大陆汽车有限公司 | Filter for a fluid injection valve, fluid injection valve and method for producing a filter for a fluid injection valve |
US9951735B2 (en) | 2013-06-04 | 2018-04-24 | Continental Automotive Gmbh | Filter for a fluid injection valve, fluid injection valve and method for producing a filter for a fluid injection valve |
US9605638B2 (en) | 2013-06-04 | 2017-03-28 | Continental Automotive Gmbh | Filter for a fluid injection valve, fluid injection valve and method for producing a filter for a fluid injection valve |
EP2876295A1 (en) * | 2013-11-20 | 2015-05-27 | Stanadyne Corporation | Fuel injector with a debris diverter shield |
WO2016102237A1 (en) * | 2014-12-22 | 2016-06-30 | Continental Automotive Gmbh | Valve assembly and fluid injection valve |
EP3037650A1 (en) * | 2014-12-22 | 2016-06-29 | Continental Automotive GmbH | Valve assembly and fluid injection valve |
WO2018024714A1 (en) | 2016-08-04 | 2018-02-08 | Continental Automotive Gmbh | Filter assembly for an injection valve, valve assembly and injection valve |
EP3279462A1 (en) * | 2016-08-04 | 2018-02-07 | Continental Automotive GmbH | Filter assembly for an injection valve, valve assembly and injection valve |
WO2018177753A1 (en) * | 2017-03-27 | 2018-10-04 | Robert Bosch Gmbh | High-pressure fuel pump |
DE102020211961A1 (en) | 2020-09-24 | 2022-03-24 | Robert Bosch Gesellschaft mit beschränkter Haftung | Injector with integrated filter and method for assembling an injector |
WO2022242988A1 (en) * | 2021-05-18 | 2022-11-24 | Robert Bosch Gmbh | Injector with integrated filter |
Also Published As
Publication number | Publication date |
---|---|
WO2009053219A1 (en) | 2009-04-30 |
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Legal Events
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8139 | Disposal/non-payment of the annual fee |