EP1364116B1 - Brennstoffeinspritzventil - Google Patents
Brennstoffeinspritzventil Download PDFInfo
- Publication number
- EP1364116B1 EP1364116B1 EP02717970A EP02717970A EP1364116B1 EP 1364116 B1 EP1364116 B1 EP 1364116B1 EP 02717970 A EP02717970 A EP 02717970A EP 02717970 A EP02717970 A EP 02717970A EP 1364116 B1 EP1364116 B1 EP 1364116B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- fuel injection
- armature
- injection valve
- valve needle
- driving flange
- 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.)
- Expired - Lifetime
Links
- 239000000446 fuel Substances 0.000 title claims description 46
- 238000002347 injection Methods 0.000 title claims description 37
- 239000007924 injection Substances 0.000 title claims description 37
- 238000002485 combustion reaction Methods 0.000 claims description 5
- 238000007789 sealing Methods 0.000 claims description 5
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000002411 adverse Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 230000009189 diving Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Images
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
-
- 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
Definitions
- the invention is based on a fuel injection valve according to the preamble of claim 1.
- an electromagnetic actuatable fuel injection valve in which for electromagnetic actuation an anchor with a electrically energized magnetic coil cooperates and the hub of the anchor over a valve needle on a Valve closing body is transmitted.
- the valve closing body interacts with a valve seat.
- the anchor is at the Valve needle is not rigidly attached, but is opposite to the Valve needle arranged axially movable.
- a first Return spring acts on the valve needle Closing direction and thus holds the fuel injector in the de-energized, non-energized state of the solenoid coil closed.
- the anchor is by means of a second Return spring in the stroke direction so acted upon that the armature in the rest position on a first, on the valve needle provided stop abuts.
- the fuel injection valve according to the invention with the Features of claim 1 has In contrast, the advantage that one of the anchor stops, the the size of a Vorhubspalts for a Determine anchor freeway construction, in one piece with the Valve needle is formed, causing inaccuracies due to manufacturing tolerances due to the saving at least less impact on a component. It is the Anchor stop arranged on the outflow side of the armature in one piece formed with the valve needle and forms a collar, on which the armature rests.
- Another advantage is that a Mitauerflansch that the Adhesion between the armature and the valve needle causes passes through the anchor and inserted into the valve needle is.
- a prestroke spring acts on the armature at rest of the fuel injection valve, so that this is held in abutment on the downstream anchor stop.
- Another advantage is the training of a Guide area on the driver flange, which is for an exact Guide the valve needle during its axial movement provides.
- a fuel injection valve 1 is in the form of a Fuel injection valve for fuel injection systems of mixture-compacting, externally ignited Internal combustion engine running.
- the Fuel injector 1 is particularly suitable for direct injection of fuel into one illustrated combustion chamber of an internal combustion engine.
- the fuel injection valve 1 consists of a Nozzle body 2, in which a valve needle 3 is arranged.
- the valve needle 3 is in operative connection with a Valve closing body 4, with one on one Valve seat body 5 arranged valve seat surface 6 to a Tight fit together.
- In the fuel injection valve 1 is it in the exemplary embodiment to an inward opening fuel injection valve 1, which via a Spray opening 7 has.
- the nozzle body 2 is preferably by means of welding with an outer pole 9 a Magnetic coil 10 connected.
- the magnetic coil 10 is in one Coil housing 11 encapsulated and on a bobbin 12th wound, which at an inner pole 13 of the magnetic coil 10th is applied.
- the inner pole 13 and the outer pole 9 are connected by a Split 26 separated from each other and rely on a Connecting component 29 from.
- the magnetic coil 10 is connected via a Line 19 of a via an electrical plug contact 17th energized electric current.
- the plug contact 17 is surrounded by a plastic sheath 18, the Inner pole 13 may be molded.
- the valve needle 3 is in the present embodiment thin-walled hollow cylindrical and has a central recess 8. To the fuel line to Sealing seat serve flow openings 14, which are in the wall the valve needle 3 are introduced.
- the valve needle 3 points at its upstream end a collar-shaped Anchor stop 32, which is integral with the valve needle 3 is trained.
- Anchor 20 On the anchor stop 32 is based Anchor 20 off. This is about a Mit supportiveflansch 21 non-positively connected to the valve needle 3 in conjunction.
- Of the Mitauerflansch 21 is also tubular trained and passes through the anchor 20 through a central Recess 33.
- the Mitiliasch 21 is in the inflow-side end of the valve needle 3 is inserted and through a weld 15 is connected to the valve needle 3.
- a return spring 23 which in the present design of the Fuel injection valve 1 by a sleeve 24 Bias is brought.
- the return spring 23 acts on the valve needle 3 via the Mitauerflansch 21st so that the valve closing body 4 in sealing contact the valve seat surface 6 is held.
- the driver flange 21 has an outer circumferential surface, the valve needle 3 in its axial movement in the Actuation of the fuel injection valve 1 as to Leadership area supports mid-mismatches and subsequent malfunction of the fuel injection valve 1 by a jammed or jammed valve needle. 3 can be avoided. Downstream of the projection 34 the driver flange 21 has a guide section 36, which serves to guide the armature 20.
- Vorhubfeder 22 acts on the armature 20 so that it is in contact with the Anchor stop 32 is held.
- the fuel which has a central fuel supply 16 is fed and filtered by a filter element 25, is through the recess 8 of the valve needle 3, a Through opening 37 in Mit supportiveflansch 21 and over the Passage openings 14 directed to the injection opening 7.
- the Fuel injection valve 1 is opposed by a seal 28 sealed a distribution line not shown.
- the axial height of Vorhubspalts 30 is characterized by an armature 20th facing shoulder 35 of Mitauerflansches 21 defines after closing the Vorhubspalts 30 from the armature 20th is under attack, whereby the adhesion for actuating the Valve needle 3 is achieved.
- the armature 20 After passing through the forward stroke against the force of Vorhubfeder 22, the armature 20 takes the Mit supportiveflansch 21, which is welded to the valve needle 3, and thereby the valve needle 3 in the stroke direction with.
- the one with the Valve needle 3 in operative connection valve closing body 4 lifts off from the valve seat 6, whereby the over the Recess 8 in the valve needle 3 and through the Throughflow 14 guided to the injection opening 7 Fuel is sprayed.
- the armature 20 drops sufficient reduction of the magnetic field by the pressure of the Return spring 23 on the driver flange 21 from the inner pole 13, whereby the valve needle 3 against the Lifting direction moves.
- the valve closing body 4 sets on the valve seat 6, and the Fuel injection valve 1 is closed.
- the anchor 20 sits on the anchor stop 32.
- Vorhubfeder 22 In addition to improving the opening dynamics causes the Vorhubfeder 22 a damping effect against Preller of Ankers 20 at Ankeransehlag 32 when closing the Fuel injection valve 1. Sets namely the armature 20 on the anchor stop 32, it may be a renewed, short-term lifting of the armature 20 from the anchor stop 32nd come. The Vorhubfeder 22 brakes the resulting Movement of the armature 20 in the stroke direction, so that the Mitauerflansch 21 and thus also the valve needle. 3 remain unaffected by the movement of the armature 20 and no unwanted, short-term opening operations of the Fuel injection valve 1 occur.
- the invention is not limited to those shown Embodiments limited and for other forms anchors 20, for example for diving and flat anchors, as well as any designs of fuel injection valves. 1 applicable.
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)
Description
- Fig. 1
- einen schematischen Schnitt durch ein Ausführungsbeispiel eines erfindungsgemäß ausgestalteten Brennstoffeinspritzventils.
Claims (10)
- Brennstoffeinspritzventil (1), insbesondere zum direkten Einspritzen von Brennstoff in den Brennraum einer gemischverdichtenden, fremdgezündeten Brennkraftmaschine, mit einem Anker (20), der mit einer Magnetspule (10) zusammenwirkt, und einer mit dem Anker (20) kraftschlüssig verbundenen Ventilnadel (3), an der ein Ventilschließkörper (4) vorgesehen ist, der zusammen mit einer Ventilsitzfläche (6) einen Dichtsitz bildet,
dadurch gekennzeichnet, daß die Ventilnadel (3) an dem zuströmseitigen Ende einen mit der Ventilnadel (3) einstückig ausgebildeten kragenförmigen Ankeranschlag (32) aufweist, an dem der Anker (20) anschlägt, wobei ein Mitnehmerflansch (21) den Anker (20) so durchgreift, daß der Mitnehmerflansch (21) in das zuströmseitige Ende der Ventilnadel (3) einschiebbar und mit diesem verbindbar ist. - Brennstoffeinspritzventil nach Anspruch 1,
dadurch gekennzeichnet, daß der Mitnehmerflansch (21) einen Vorsprung (34) aufweist, an dem sich zuströmseitig eine Rückstellfeder (23) abstützt. - Brennstoffeinspritzventil nach Anspruch 2,
dadurch gekennzeichnet, daß zwischen dem Vorsprung (34) des Mitnehmerflansches (21) und dem Anker (20) eine Vorhubfeder (22) angeordnet ist. - Brennstoffeinspritzventil nach einem der Ansprüche 1 bis 3,
dadurch gekennzeichnet, daß der Mitnehmerflansch (21) mit der Ventilnadel (3) über eine Schweißnaht (15) verbunden ist. - Brennstoffeinspritzventil nach einem der Ansprüche 1 bis 4,
dadurch gekennzeichnet, daß der Mitnehmerflansch (21) eine dem Anker (20) zugewandte Schulter (35) aufweist. - Brennstoffeinspritzventil nach Anspruch 5,
dadurch gekennzeichnet, daß ein axialer Abstand zwischen dem Anker (20) und der Schulter (35) einen Vorhubspalt (30) definiert. - Brennstoffeinspritzventil nach einem der Ansprüche 1 bis 6,
dadurch gekennzeichnet, daß die Ventilnadel (3) als Tiefziehteil ausgeformt ist. - Brennstoffeinspritzventil nach einem der Ansprüche 2 bis 7,
dadurch gekennzeichnet, daß der Mitnehmerflansch (21) stromabwärts des Vorsprungs (34) einen Führungsabschnitt (36) aufweist, an dem der Anker (20) während der Axialbewegung geführt ist. - Brennstoffeinspritzventil nach einem der Ansprüche 1 bis 8,
dadurch gekennzeichnet, daß der Mitnehmerflansch (21) rohrförmig ausgeführt ist und eine innere Durchgangsöffnung (37) für die Brennstoffströmung aufweist. - Brennstoffeinspritzventil nach einem der Ansprüche 2 bis 9,
dadurch gekennzeichnet, daß eine äußere Mantelfläche des Mitnehmerflansches (21) im Bereich des Vorsprungs (34) als Führung der axial bewegten Ventilnadel (3) dient.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10108945A DE10108945A1 (de) | 2001-02-24 | 2001-02-24 | Brennstoffeinspritzventil |
DE10108945 | 2001-02-24 | ||
PCT/DE2002/000661 WO2002068810A1 (de) | 2001-02-24 | 2002-02-25 | Brennstoffeinspritzventil |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1364116A1 EP1364116A1 (de) | 2003-11-26 |
EP1364116B1 true EP1364116B1 (de) | 2005-11-02 |
Family
ID=7675361
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP02717970A Expired - Lifetime EP1364116B1 (de) | 2001-02-24 | 2002-02-25 | Brennstoffeinspritzventil |
Country Status (7)
Country | Link |
---|---|
US (1) | US6932283B2 (de) |
EP (1) | EP1364116B1 (de) |
JP (1) | JP4335528B2 (de) |
KR (1) | KR100851767B1 (de) |
CN (1) | CN100402831C (de) |
DE (2) | DE10108945A1 (de) |
WO (1) | WO2002068810A1 (de) |
Families Citing this family (35)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10361761A1 (de) * | 2003-12-29 | 2005-07-28 | Robert Bosch Gmbh | Brennstoffeinspritzventil |
DE102005052255B4 (de) * | 2005-11-02 | 2020-12-17 | Robert Bosch Gmbh | Brennstoffeinspritzventil |
US7472844B2 (en) * | 2005-12-21 | 2009-01-06 | Caterpillar Inc. | Fuel injector nozzle with tip alignment apparatus |
JP4790441B2 (ja) * | 2006-02-17 | 2011-10-12 | 日立オートモティブシステムズ株式会社 | 電磁燃料噴射弁及びその組立て方法 |
US7565893B2 (en) | 2007-09-10 | 2009-07-28 | Gm Global Technology Operations, Inc. | Spark ignited direct injection flow geometry for improved combustion |
EP2238337B1 (de) * | 2007-12-21 | 2014-12-17 | Robert Bosch GmbH | Brennstoffeinspritzventil |
US8651323B2 (en) * | 2008-02-07 | 2014-02-18 | Kenneth R. Balkin | Hand protection barrier dispenser |
JP5152024B2 (ja) * | 2009-02-04 | 2013-02-27 | 株式会社デンソー | 燃料噴射弁 |
EP2333297B1 (de) | 2009-12-11 | 2013-03-20 | Continental Automotive GmbH | Ventilanordnung für ein Einspritzventil und Einspritzventil |
JP2011185264A (ja) * | 2010-02-11 | 2011-09-22 | Denso Corp | インジェクタ |
CN102003317B (zh) * | 2010-11-16 | 2012-06-06 | 亚新科南岳(衡阳)有限公司 | 汽油直喷喷油器 |
JP5862941B2 (ja) * | 2011-11-08 | 2016-02-16 | 株式会社デンソー | 燃料噴射弁 |
KR101361809B1 (ko) * | 2011-12-23 | 2014-02-11 | 대동공업주식회사 | 유압발생모듈 및 이를 포함하는 전기구동식 다목적 운반차량 |
DE102012202253A1 (de) * | 2012-02-15 | 2013-08-22 | Robert Bosch Gmbh | Brennstoffeinspritzventil |
DE102012203124A1 (de) | 2012-02-29 | 2013-08-29 | Robert Bosch Gmbh | Einspritzventil |
DE102012207406A1 (de) | 2012-05-04 | 2013-11-07 | Robert Bosch Gmbh | Ventil zum Zumessen von Fluid |
DE102012208136A1 (de) | 2012-05-15 | 2013-11-21 | Robert Bosch Gmbh | Ventil zum Zumessen von Fluid |
DE102012210415A1 (de) | 2012-06-20 | 2013-12-24 | Robert Bosch Gmbh | Einspritzventil |
DE102012215779A1 (de) | 2012-09-06 | 2014-03-06 | Robert Bosch Gmbh | Einspritzventil |
EP2706220B1 (de) * | 2012-09-07 | 2016-06-29 | Continental Automotive GmbH | Ventilanordnung für ein Einspritzventil und Einspritzventil |
DE102012220484A1 (de) | 2012-11-09 | 2014-05-15 | Robert Bosch Gmbh | Ventil zum Zumessen von Fluid |
EP2837813B1 (de) * | 2013-08-14 | 2016-04-06 | Continental Automotive GmbH | Ventilanordnung für ein Einspritzventil und Einspritzventil |
DE102013218261A1 (de) | 2013-09-12 | 2015-03-12 | Robert Bosch Gmbh | Ventil zum Einspritzen von Kraftstoff |
EP2863045B1 (de) * | 2013-10-15 | 2016-09-14 | Continental Automotive GmbH | Verfahren zur Herstellung eines Injektors für eine Brennkraftmaschine, Armatur-Nadelanordnung und Fluidinjektor |
DE102013221320A1 (de) | 2013-10-21 | 2015-04-23 | Robert Bosch Gmbh | Verfahren zur Sicherstellung des Kaltstarts eines mit Ethanol-Kraftstoff betriebenen Ottomotors |
DE102013222590A1 (de) | 2013-11-07 | 2015-05-21 | Robert Bosch Gmbh | Ventil zum Zumessen von Fluid |
DE102013222596A1 (de) | 2013-11-07 | 2015-05-07 | Robert Bosch Gmbh | Ventil zum Zumessen von Fluid |
DE102013222613A1 (de) | 2013-11-07 | 2015-05-07 | Robert Bosch Gmbh | Ventil zum Zumessen von Fluid |
DE102013223453A1 (de) | 2013-11-18 | 2015-05-21 | Robert Bosch Gmbh | Ventil zum Zumessen von Fluid |
DE102013223458A1 (de) | 2013-11-18 | 2015-05-21 | Robert Bosch Gmbh | Ventil zum Zumessen von Fluid |
EP3139030A1 (de) * | 2015-09-03 | 2017-03-08 | Continental Automotive GmbH | Injektor für eine brennkraftmaschine |
CN108368805B (zh) * | 2015-09-24 | 2021-03-12 | 大陆汽车有限公司 | 用于喷射阀的阀组件和喷射阀 |
DE102015226181A1 (de) * | 2015-12-21 | 2017-06-22 | Robert Bosch Gmbh | Ventil zum Zumessen eines Fluids |
DE102018218678A1 (de) | 2018-10-31 | 2020-04-30 | Robert Bosch Gmbh | Ventil zum Zumessen eines Fluids, insbesondere Brennstoffeinspritzventil |
DE102018221086A1 (de) | 2018-12-06 | 2020-06-10 | Robert Bosch Gmbh | Ventil zum Zumessen eines Fluids, insbesondere Brennstoffeinspritzventil |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3314899A1 (de) | 1983-04-25 | 1984-10-25 | Mesenich, Gerhard, Dipl.-Ing., 4630 Bochum | Federanordnung mit zusatzmasse zur verbesserung des dynamischen verhaltens von elektromagnetsystemen |
US4568021A (en) | 1984-04-02 | 1986-02-04 | General Motors Corporation | Electromagnetic unit fuel injector |
DE8802722U1 (de) * | 1988-03-01 | 1988-04-14 | Industrial Technology Research Institute, Hsinchu | Minitreibstoffinjektor |
US5299776A (en) | 1993-03-26 | 1994-04-05 | Siemens Automotive L.P. | Impact dampened armature and needle valve assembly |
US5421521A (en) * | 1993-12-23 | 1995-06-06 | Caterpillar Inc. | Fuel injection nozzle having a force-balanced check |
US5494223A (en) * | 1994-08-18 | 1996-02-27 | Siemens Automotive L.P. | Fuel injector having improved parallelism of impacting armature surface to impacted stop surface |
US5605289A (en) * | 1994-12-02 | 1997-02-25 | Caterpillar Inc. | Fuel injector with spring-biased control valve |
US5961097A (en) * | 1996-12-17 | 1999-10-05 | Caterpillar Inc. | Electromagnetically actuated valve with thermal compensation |
US6021963A (en) * | 1997-12-23 | 2000-02-08 | Caterpillar Inc. | Cartridge control valve with top mounted solenoid and flat valve seat for a fuel injector |
DE19820341C2 (de) | 1998-05-07 | 2000-04-06 | Daimler Chrysler Ag | Betätigungsvorrichtung für eine Hochdruck-Einspritzdüse für flüssige Einspritzmedien |
DE19849210A1 (de) | 1998-10-26 | 2000-04-27 | Bosch Gmbh Robert | Brennstoffeinspritzventil |
-
2001
- 2001-02-24 DE DE10108945A patent/DE10108945A1/de not_active Withdrawn
-
2002
- 2002-02-25 CN CNB028003950A patent/CN100402831C/zh not_active Expired - Fee Related
- 2002-02-25 US US10/258,299 patent/US6932283B2/en not_active Expired - Fee Related
- 2002-02-25 KR KR1020027013982A patent/KR100851767B1/ko not_active IP Right Cessation
- 2002-02-25 EP EP02717970A patent/EP1364116B1/de not_active Expired - Lifetime
- 2002-02-25 WO PCT/DE2002/000661 patent/WO2002068810A1/de active IP Right Grant
- 2002-02-25 DE DE50204771T patent/DE50204771D1/de not_active Expired - Lifetime
- 2002-02-25 JP JP2002567690A patent/JP4335528B2/ja not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
CN100402831C (zh) | 2008-07-16 |
KR100851767B1 (ko) | 2008-08-13 |
CN1457391A (zh) | 2003-11-19 |
US6932283B2 (en) | 2005-08-23 |
DE10108945A1 (de) | 2002-09-05 |
JP2004518858A (ja) | 2004-06-24 |
JP4335528B2 (ja) | 2009-09-30 |
DE50204771D1 (de) | 2005-12-08 |
WO2002068810A1 (de) | 2002-09-06 |
EP1364116A1 (de) | 2003-11-26 |
KR20020089501A (ko) | 2002-11-29 |
US20030160117A1 (en) | 2003-08-28 |
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