WO2005113973A1 - Brennstoffeinspritzventil - Google Patents
Brennstoffeinspritzventil Download PDFInfo
- Publication number
- WO2005113973A1 WO2005113973A1 PCT/EP2005/050743 EP2005050743W WO2005113973A1 WO 2005113973 A1 WO2005113973 A1 WO 2005113973A1 EP 2005050743 W EP2005050743 W EP 2005050743W WO 2005113973 A1 WO2005113973 A1 WO 2005113973A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- fuel injection
- injection valve
- armature
- valve according
- sleeve
- Prior art date
Links
- 239000000446 fuel Substances 0.000 title claims abstract description 54
- 238000002347 injection Methods 0.000 title claims abstract description 32
- 239000007924 injection Substances 0.000 title claims abstract description 32
- 238000002485 combustion reaction Methods 0.000 claims abstract description 9
- 238000007789 sealing Methods 0.000 claims abstract description 5
- 230000005291 magnetic effect Effects 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- 238000004026 adhesive bonding Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 230000005294 ferromagnetic effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000005476 soldering Methods 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
- 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
Definitions
- the invention relates to a fuel injector according to the preamble of claim 1.
- a fuel injection valve is known in particular for the direct injection of fuel into the combustion chamber of an internal combustion engine.
- the fuel injection valve comprises an armature, which cooperates with a solenoid coil, and a valve needle which is positively connected to the armature and on which a Valve closing body is provided, which forms a sealing seat together with a valve seat surface.
- the valve needle has a first stop for the armature movable on it, the armature being additionally acted upon by a second return spring.
- a stationary second stop for the armature is also provided.
- the second return spring acts on the armature counter to the stroke direction and holds the armature against the second stop in the non-energized state of the solenoid so that the armature is spaced from the first stop formed on the valve needle by a predetermined distance.
- a disadvantage of the fuel injector known from DE 198 16 315 AI is, in particular, that although a pre-stroke principle is implemented which enables an improvement in the valve dynamics when the fuel injector is opened, armature bumps occur when the fuel injector closes when the armature returns to the starting position, which means that further undesired opening strokes of the valve needle are induced.
- the fuel injector according to the invention with the characterizing features of the main claim has the advantage that the armature is mounted swinging on the valve needle by a correspondingly arranged spring and therefore a preliminary stroke can take place during the opening process, but the armature can swing through when closing relative to the valve needle, which means that more Opening strokes of the valve needle can be avoided.
- the spring is designed in a simple manner as a helical spring and is attached to the valve needle.
- the spring is advantageously arranged between a flange which is non-positively connected to the valve needle and a sleeve.
- the sleeve encapsulates the spring and the flange.
- the sleeve can be produced in a simple manner and mounted on the armature in the fuel injection valve. It is also advantageous that a stop ring fixed to the housing is provided which serves as the lower anchor stop.
- Fig. 1 shows a schematic section through an embodiment of a fuel injector designed according to the invention
- FIG. 2 shows an enlarged detail from the exemplary embodiment of a fuel injector according to the invention shown in FIG. 1 in area II in FIG. 1.
- FIG. 1 An exemplary embodiment of a fuel injection valve 1 according to the invention shown in FIG. 1 is in the form of a fuel injection valve 1 for fuel injection systems of mixture-compressing, spark-ignited internal combustion engines.
- the fuel injection valve 1 is particularly suitable for injecting fuel directly into a combustion chamber (not shown) 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 operatively connected to a valve closing body 4, which is connected to a valve seat body 5 arranged valve seat surface 6 cooperates to form a sealing seat.
- the fuel injection valve 1 is a fuel injection valve 1 that opens inwards and has a spray opening 7.
- the nozzle body 2 is sealed by a seal 8 against an outer pole 9 of a solenoid 10.
- the magnet coil 10 is encapsulated in a coil housing 11 and wound on a coil carrier 12 which bears against an inner pole 13 of the magnet coil 10.
- the inner pole 13 and the outer pole 9 are separated from one another by a constriction 26 and connected to one another by a non-ferromagnetic connecting component 29.
- the magnet coil 10 is excited via a line 19 by an electrical current that can be supplied via an electrical plug contact 17.
- the plug contact 17 is surrounded by a plastic sheath 18, which can be molded onto the inner pole 13.
- An armature 20 is movably arranged on the valve needle 3. This is spaced from a first flange 21, which is non-positively connected to the valve needle 3 by means of a weld seam 22, by a preliminary stroke gap 27.
- a return spring 23 is supported on the first flange 21, which in the present design of the fuel injection valve 1 is preloaded by a sleeve 24.
- a working air gap 33 is formed between a lower stop surface of the inner pole 13 and the armature 20.
- Fuel channels 30 and 32 run in the armature 20 and on a guide element 36.
- the fuel is supplied via a central fuel supply 16 and filtered by a filter element 25.
- the fuel injector 1 is sealed by a seal 28 against a fuel rail, not shown, and by a further seal 37, against a cylinder head, not shown.
- a second flange 34 is arranged on the spray-side side of the armature 20, which is also non-positively connected to the valve needle 3 via a weld seam 35.
- a cup-shaped sleeve 14 is provided on the outflow side of the armature 20 and in fixed connection therewith, in which a spring 31 is arranged, which is supported between the sleeve 14 and the second flange 34.
- a stop ring 38 fixed to the housing serves as an anchor stop on the downstream side.
- the valve needle 3 In the idle state of the fuel injection valve 1, the valve needle 3 is acted upon by the return spring 23 against its stroke direction in such a way that the valve closing body 4 is held in sealing contact with the valve seat surface 6.
- the magnet coil 10 When the magnet coil 10 is excited, it builds up a magnetic field, which initially moves the armature 20 in the stroke direction against the spring force of the spring 31, the preliminary stroke or the armature free travel being achieved by a preliminary stroke gap 27 located in the rest position between the first flange 21 and the armature 20 is specified.
- the armature 20 After passing through the forward stroke, the armature 20 is pulled against the force of the return spring 23 to the inner pole 13 of the magnet coil 10, the armature 20 taking along the first flange 21, which is welded to the valve needle 3, whereby this is also carried in the stroke direction.
- the valve closing body 4, which is connected to the valve needle 3, lifts off the valve seat surface 6, and the fuel guided via the fuel channels 30 and 32 is sprayed off through the spray opening 7.
- the armature 20 drops from the inner pole 13 after the magnetic field has been sufficiently reduced by the pressure of the return spring 23, as a result of which the first flange 21, which is connected to the valve needle 3, moves counter to the stroke direction.
- the valve needle 3 will thereby moved in the same direction, whereby the valve closing body 4 rests on the valve seat surface 6 and the fuel injector 1 is closed.
- the sleeve 14 is at the same time on the housing-fixed stop ring 38.
- the armature 20 is arranged on the valve needle 3 in a freely swinging manner. So-called first order anchor bumpers are avoided by preventing the armature 20 from striking the flange 34 during the closing direction of the fuel injector 1 during the closing movement. Instead, it is intercepted by the stop ring 38. The armature 20 is therefore braked by the spring 31 during the closing movement. At the same time, the pre-stroke principle, which enables the opening dynamics of fuel injector 1 to be improved, is also implemented.
- the sleeve 14 is connected to the armature 20 via a collar 39 fixed, '- for example by welding, soldering' -or gluing.
- the stop ring 38 is fixed to the housing, for example by being pressed in or welded to the outer pole 9 of the fuel injection valve 1.
- the invention is not limited to the exemplary embodiment shown and can also be used for other forms of fuel injection valves 1.
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Fuel-Injection Apparatus (AREA)
Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2005518112A JP4243610B2 (ja) | 2004-05-18 | 2005-02-21 | 燃料噴射弁 |
EP05716755A EP1751420B1 (de) | 2004-05-18 | 2005-02-21 | Brennstoffeinspritzventil |
DE502005008412T DE502005008412D1 (de) | 2004-05-18 | 2005-02-21 | Brennstoffeinspritzventil |
US11/596,952 US8528842B2 (en) | 2004-05-18 | 2005-02-21 | Fuel injector |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102004024533.9 | 2004-05-18 | ||
DE102004024533A DE102004024533A1 (de) | 2004-05-18 | 2004-05-18 | Brennstoffeinspritzventil |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2005113973A1 true WO2005113973A1 (de) | 2005-12-01 |
Family
ID=34961240
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2005/050743 WO2005113973A1 (de) | 2004-05-18 | 2005-02-21 | Brennstoffeinspritzventil |
Country Status (5)
Country | Link |
---|---|
US (1) | US8528842B2 (de) |
EP (1) | EP1751420B1 (de) |
JP (1) | JP4243610B2 (de) |
DE (2) | DE102004024533A1 (de) |
WO (1) | WO2005113973A1 (de) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2470770A2 (de) * | 2009-08-27 | 2012-07-04 | McAlister Technologies, LLC | Brennstoffeinspritz-aktuatorbaugruppen sowie entsprechende verfahren zu ihrer herstellung und verwendung |
WO2014037142A1 (de) * | 2012-09-06 | 2014-03-13 | Robert Bosch Gmbh | Einspritzventil |
EP2873849A1 (de) * | 2013-11-18 | 2015-05-20 | Robert Bosch Gmbh | Ventil zum Zumessen von Fluid |
EP2933472A1 (de) * | 2014-04-16 | 2015-10-21 | Continental Automotive GmbH | Kraftstoffeinspritzventil für einen Verbrennungsmotor |
WO2017050616A1 (en) * | 2015-09-24 | 2017-03-30 | Continental Automotive Gmbh | Valve assembly for an injection valve and injection valve |
Families Citing this family (27)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2011028225A1 (en) * | 2009-08-27 | 2011-03-10 | Mcalister Technoligies, Llc | Method and system of thermochemical regeneration to provide oxygenated fuel, for example, with fuel-cooled fuel injectors |
JP2011190798A (ja) | 2010-02-17 | 2011-09-29 | Denso Corp | 燃料噴射弁 |
JP5835421B2 (ja) * | 2010-10-05 | 2015-12-24 | 株式会社デンソー | 燃料噴射弁 |
JP5768536B2 (ja) | 2010-10-05 | 2015-08-26 | 株式会社デンソー | 燃料噴射弁 |
EP2444651B1 (de) * | 2010-10-19 | 2013-07-10 | Continental Automotive GmbH | Ventilanordnung für ein Einspritzventil und Einspritzventil |
EP2527637B1 (de) * | 2011-05-23 | 2014-10-08 | Continental Automotive GmbH | Injektor zum Einspritzen von Flüssigkeit |
EP2535552B1 (de) * | 2011-06-15 | 2015-02-25 | Continental Automotive GmbH | Ventilanordnung für ein Einspritzventil und Einspritzventil |
DE102012202253A1 (de) * | 2012-02-15 | 2013-08-22 | Robert Bosch Gmbh | Brennstoffeinspritzventil |
JP6015870B2 (ja) * | 2012-02-20 | 2016-10-26 | 株式会社デンソー | 燃料噴射弁 |
JP5965253B2 (ja) | 2012-02-20 | 2016-08-03 | 株式会社デンソー | 燃料噴射弁 |
DE102012203124A1 (de) * | 2012-02-29 | 2013-08-29 | Robert Bosch Gmbh | Einspritzventil |
DE102012210415A1 (de) * | 2012-06-20 | 2013-12-24 | Robert Bosch Gmbh | Einspritzventil |
JP5979009B2 (ja) * | 2013-01-07 | 2016-08-24 | マツダ株式会社 | 直噴エンジンの燃料噴射装置 |
JP5979010B2 (ja) * | 2013-01-07 | 2016-08-24 | マツダ株式会社 | 直噴エンジンの燃料噴射装置 |
EP2863045B1 (de) * | 2013-10-15 | 2016-09-14 | Continental Automotive GmbH | Verfahren zur Herstellung eines Injektors für eine Brennkraftmaschine, Armatur-Nadelanordnung und Fluidinjektor |
DE102013223458A1 (de) * | 2013-11-18 | 2015-05-21 | Robert Bosch Gmbh | Ventil zum Zumessen von Fluid |
EP2896813B1 (de) | 2014-01-17 | 2018-01-10 | Continental Automotive GmbH | Kraftstoffeinspritzventil für einen Verbrennungsmotor |
US9453456B2 (en) * | 2014-01-21 | 2016-09-27 | Dresser-Rand Company | Electronic pre-chamber injector |
JP6264966B2 (ja) * | 2014-03-14 | 2018-01-24 | 株式会社デンソー | 燃料噴射装置 |
JP6256188B2 (ja) * | 2014-05-19 | 2018-01-10 | 株式会社デンソー | 燃料噴射弁 |
WO2016042753A1 (ja) * | 2014-09-17 | 2016-03-24 | 株式会社デンソー | 燃料噴射弁 |
DE102015214171A1 (de) * | 2015-07-27 | 2017-02-02 | Robert Bosch Gmbh | Ventil zum Zumessen eines Fluids |
TR201721116A2 (tr) | 2017-12-21 | 2019-07-22 | Bosch Sanayi Ve Tic A S | Sekmesi̇ azaltilmiş bi̇r yakit enjektör armatürü |
DE102018200341A1 (de) * | 2018-01-11 | 2019-07-11 | Robert Bosch Gmbh | Ventil zum Zumessen eines Fluids, insbesondere Brennstoffeinspritzventil |
JP6913816B2 (ja) * | 2018-02-23 | 2021-08-04 | 日立Astemo株式会社 | 燃料噴射弁及びその組立方法 |
DE102018221139A1 (de) | 2018-12-06 | 2020-06-10 | Robert Bosch Gmbh | Solenoid-kraftstoffeinspritzventil für hohe motorumdrehungsfrequenzen |
US11603815B1 (en) | 2021-11-04 | 2023-03-14 | Standard Motor Products, Inc. | Modular armature-needle assembly for fuel injectors |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19816315A1 (de) * | 1998-04-11 | 1999-10-14 | Bosch Gmbh Robert | Brennstoffeinspritzventil |
DE19927900A1 (de) * | 1999-06-18 | 2000-12-21 | Bosch Gmbh Robert | Brennstoffeinspritzventil |
DE10039077A1 (de) * | 2000-08-10 | 2002-02-21 | Bosch Gmbh Robert | Brennstoffeinspritzventil |
EP1460263A1 (de) * | 2003-03-19 | 2004-09-22 | Siemens Aktiengesellschaft | Einspritzventil mit einer durch eine Feder vorgespannten Nadel |
Family Cites Families (13)
Publication number | Priority date | Publication date | Assignee | Title |
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DE2210213C2 (de) * | 1972-03-03 | 1985-03-28 | Robert Bosch Gmbh, 7000 Stuttgart | Elektromagnetisch betätigbares Kraftstoffeinspritzventil für Brennkraftmaschinen |
DE2342109C2 (de) * | 1973-08-21 | 1983-10-27 | Robert Bosch Gmbh, 7000 Stuttgart | Elektromechanisch gesteuertes Kraftstoffeinspritzventil für Brennkraftmaschinen |
GB1574128A (en) * | 1976-01-20 | 1980-09-03 | Lucas Industries Ltd | Fuel pump injector |
US4311280A (en) * | 1980-07-21 | 1982-01-19 | General Motors Corporation | Electromagnetic fuel injector with adjustable armature spring |
US4540122A (en) * | 1983-10-26 | 1985-09-10 | General Motors Corporation | Electromagnetic unit fuel injector with pivotable armature |
DE3408012A1 (de) * | 1984-03-05 | 1985-09-05 | Gerhard Dipl.-Ing. Warren Mich. Mesenich | Elektromagnetisches einspritzventil |
DE3521040A1 (de) * | 1985-06-12 | 1986-12-18 | Vdo Adolf Schindling Ag, 6000 Frankfurt | Einspritzventil |
US4741478A (en) * | 1986-11-28 | 1988-05-03 | General Motors Corporation | Diesel unit fuel injector with spill assist injection needle valve closure |
AUPN391295A0 (en) * | 1995-06-30 | 1995-07-27 | Orbital Engine Company (Australia) Proprietary Limited | Fuel injection apparatus |
DE19948238A1 (de) * | 1999-10-07 | 2001-04-19 | Bosch Gmbh Robert | Brennstoffeinspritzventil |
DE10043085A1 (de) * | 2000-09-01 | 2002-03-14 | Bosch Gmbh Robert | Brennstoffeinspritzventil |
DE10118162B9 (de) | 2001-04-11 | 2004-09-09 | Robert Bosch Gmbh | Brennstoffeinspritzventil |
DE10142302A1 (de) * | 2001-08-29 | 2003-03-20 | Bosch Gmbh Robert | Brennstoffeinspritzventil |
-
2004
- 2004-05-18 DE DE102004024533A patent/DE102004024533A1/de not_active Withdrawn
-
2005
- 2005-02-21 EP EP05716755A patent/EP1751420B1/de active Active
- 2005-02-21 DE DE502005008412T patent/DE502005008412D1/de active Active
- 2005-02-21 WO PCT/EP2005/050743 patent/WO2005113973A1/de active Application Filing
- 2005-02-21 JP JP2005518112A patent/JP4243610B2/ja active Active
- 2005-02-21 US US11/596,952 patent/US8528842B2/en active Active
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19816315A1 (de) * | 1998-04-11 | 1999-10-14 | Bosch Gmbh Robert | Brennstoffeinspritzventil |
DE19927900A1 (de) * | 1999-06-18 | 2000-12-21 | Bosch Gmbh Robert | Brennstoffeinspritzventil |
DE10039077A1 (de) * | 2000-08-10 | 2002-02-21 | Bosch Gmbh Robert | Brennstoffeinspritzventil |
EP1460263A1 (de) * | 2003-03-19 | 2004-09-22 | Siemens Aktiengesellschaft | Einspritzventil mit einer durch eine Feder vorgespannten Nadel |
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2470770A2 (de) * | 2009-08-27 | 2012-07-04 | McAlister Technologies, LLC | Brennstoffeinspritz-aktuatorbaugruppen sowie entsprechende verfahren zu ihrer herstellung und verwendung |
EP2470770A4 (de) * | 2009-08-27 | 2013-02-27 | Mcalister Technologies Llc | Brennstoffeinspritz-aktuatorbaugruppen sowie entsprechende verfahren zu ihrer herstellung und verwendung |
WO2014037142A1 (de) * | 2012-09-06 | 2014-03-13 | Robert Bosch Gmbh | Einspritzventil |
US9518542B2 (en) | 2012-09-06 | 2016-12-13 | Robert Bosch Gmbh | Injection valve |
EP2873849A1 (de) * | 2013-11-18 | 2015-05-20 | Robert Bosch Gmbh | Ventil zum Zumessen von Fluid |
EP2933472A1 (de) * | 2014-04-16 | 2015-10-21 | Continental Automotive GmbH | Kraftstoffeinspritzventil für einen Verbrennungsmotor |
WO2017050616A1 (en) * | 2015-09-24 | 2017-03-30 | Continental Automotive Gmbh | Valve assembly for an injection valve and injection valve |
CN108368805A (zh) * | 2015-09-24 | 2018-08-03 | 大陆汽车有限公司 | 用于喷射阀的阀组件和喷射阀 |
US10871134B2 (en) | 2015-09-24 | 2020-12-22 | Vitesco Technologies GmbH | Valve assembly for an injection valve and injection valve |
Also Published As
Publication number | Publication date |
---|---|
US8528842B2 (en) | 2013-09-10 |
US20080277505A1 (en) | 2008-11-13 |
DE102004024533A1 (de) | 2005-12-15 |
JP2008506875A (ja) | 2008-03-06 |
JP4243610B2 (ja) | 2009-03-25 |
EP1751420A1 (de) | 2007-02-14 |
DE502005008412D1 (de) | 2009-12-10 |
EP1751420B1 (de) | 2009-10-28 |
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