EP1402172A1 - Soupape d'injection de carburant - Google Patents
Soupape d'injection de carburantInfo
- Publication number
- EP1402172A1 EP1402172A1 EP02745088A EP02745088A EP1402172A1 EP 1402172 A1 EP1402172 A1 EP 1402172A1 EP 02745088 A EP02745088 A EP 02745088A EP 02745088 A EP02745088 A EP 02745088A EP 1402172 A1 EP1402172 A1 EP 1402172A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- filter element
- armature
- fuel injection
- injection valve
- sleeve
- 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.)
- Granted
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
- F02M61/04—Fuel-injectors not provided for in groups F02M39/00 - F02M57/00 or F02M67/00 having valves, e.g. having a plurality of valves in series
-
- 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
- F02M51/0685—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
- 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
- F02M2200/00—Details of fuel-injection apparatus, not otherwise provided for
- F02M2200/02—Fuel-injection apparatus having means for reducing wear
-
- 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
-
- 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
- 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
- F02M51/0614—Injectors peculiar thereto with means directly operating the valve needle using electromagnetic operating means characterised by arrangement of electromagnets or fixed armature
-
- 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
- F02M61/04—Fuel-injectors not provided for in groups F02M39/00 - F02M57/00 or F02M67/00 having valves, e.g. having a plurality of valves in series
- F02M61/10—Other injectors with elongated valve bodies, i.e. of needle-valve type
- F02M61/12—Other injectors with elongated valve bodies, i.e. of needle-valve type characterised by the provision of guiding or centring means for valve bodies
Definitions
- the invention is based on a fuel injection valve according to the type of the main claim.
- a fuel injection valve is known from DE 44 21 881 AI, the valve needle of which has a filter element mounted in or on it.
- the function of the filter element is to keep all particles and contaminants upstream of the sealing seat inside the fuel injection valve away from the sealing seat and thus to avoid blockages or leaks at the sealing seat.
- the filter element is designed in the form of a sieve stocking which at least partially envelops the valve needle.
- a disadvantage of the fuel injector known from DE 44 21 881 AI is in particular that the manufacture and assembly of a stocking-shaped filter element is complex and therefore cost-intensive. Due to the large surface area of the filter element, due to the strong valve needle movement, it is susceptible to twisting and shifting when the fuel injector is in operation. Advantages of the invention
- the fuel injector according to the invention with the characterizing features of the main claim has the advantage that, in addition to a filter element possibly arranged in the fuel supply, a further filter element is provided, which is arranged downstream of the armature and offers a simple possibility of either a second, finer filtering of the flowing through To enable fuel in addition to the filtering by the first filter element or to replace the first filter element with the advantage of the shorter overall length of the fuel injector.
- the second filter element can be produced in a simple manner from a mesh screen or by making openings in an annular plate.
- the openings can be produced in a variety of ways, for example by means of laser drilling, etching, eroding or punching.
- the filter element can either be inserted loosely into the sleeve arranged downstream of the armature , or can be clamped or welded to it in order to fix the filter element.
- Fig. 1 is a schematic section through an embodiment of a fuel injection valve according to the invention in an overall view
- FIG. 2 shows a schematic section through the exemplary embodiment of the fuel injector according to the invention shown in FIG. 1 in area II in FIG. 1.
- a fuel injector 1 shown in FIG. 1 is in the form of a fuel injector 1 for fuel injection systems of mixture-compressing, spark-ignition 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 cooperates with a valve seat surface 6 arranged on a valve seat body 5 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 through a constriction 26 separated from one another 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.
- valve needle 3 is guided in a valve needle guide 14, which is disc-shaped.
- a paired adjusting shackle 15 is used for stroke adjustment.
- An armature 20 is located on the other side of the adjusting disk 15.
- Flange 21 is connected.
- a return spring 23 is supported on the flange 21, which in the present design of the fuel injector 1 is preloaded by a sleeve 24.
- fuel channels 30a to 30c run, which carry the fuel , which is supplied via a central fuel supply 16 and a first filter element 25a is filtered, to the spray opening 7.
- the fuel injection valve 1 is sealed by a seal 28 against a fuel line (not shown further).
- a damping element 32 formed as an O-ring and consisting of an elastomer material is arranged in a recess 35. It rests on a shoulder-like widening 36 of a preferably deep-drawn sleeve 31, which is non-positively connected to the valve needle 3 via a weld seam 33.
- a second filter element 25b is arranged, which is designed in the form of a flat filter 25 and can consist, for example, of screen fabric or as a round plate with many small openings.
- Flow-through openings 37 are formed in the sleeve 31, which are covered by the second filter element 25b, as a result of which the valve seat is protected from contamination, by coarse particles in the fuel, and malfunctions of the fuel injection valve 1 are avoided.
- 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 flange 21 connected to the valve needle 3 moves against the stroke direction.
- the valve needle 3 is thereby moved in the same direction, as a result of which the valve closing body 4 is placed on the valve seat surface 6 and. the fuel injector 1 is closed.
- FIG. 2 shows an enlarged sectional view of an enlarged view of area II in FIG. 1.
- valve needle 3 A part of the valve needle 3 is shown, the flange 21 welded to it, the 'sleeve 31 and the one in the Recess 35 of the armature 20 inserted second filter element 25b designed according to the invention.
- flange 21 is first welded to valve needle 3 via weld 22.
- the damping element 32 is inserted into the recess 35 formed in the downstream end face 34 of the armature 20 and the armature 20 with the damping element 32 inserted is fitted onto the valve needle 3.
- second filter element 25b is inserted into the stepped sleeve 31, which can preferably be produced by deep drawing and has, preferably, punched through-openings 37 for the fuel line.
- the sleeve 31 is then pushed together with the second filter element 25b onto the valve needle 3 and also connected to the valve needle 3 via a weld 33.
- the second filter element 25b is arranged so that it covers the flow openings 37 in the pot-shaped sleeve 31.
- the shape and fit of the armature 20 ensures that the fuel can flow exclusively through the fuel channels 30a in the armature and the flow openings 37 in the sleeve 31 in the direction of the sealing seat.
- coarse particles in the fuel can be filtered out by means of the second filter element 25b inserted in the sleeve 31, so that the sealing seat is protected against impurities which can lead to malfunctions of the fuel injection valve 1.
- the second filter element 25b is preferably designed in the form of a flat filter 25b, which can be made from a screen fabric.
- the second filter element 25b can also be produced as a round plate from a thin sheet and provided with round or elongated openings through which the fuel flows.
- the openings can punched, eroded, etched or laser drilled.
- the openings are preferably smaller than the openings of the upstream first filter element 25a, which increases the effectiveness of fuel filtering.
- the second filter element 25b can be fixed in the sleeve 31 in various ways in order to prevent slippage and subsequent transfer of dirt particles into the fuel flow.
- the second filter element 25b is dimensioned so that its diameter corresponds to the inside width of the sleeve 31, it can be inserted into the cup 31 without attachment. If the second filter element 25b is dimensioned somewhat larger, it can be pressed into the sleeve 31 by means of radial pressure.
- the second filter element 25b is somewhat smaller than the sleeve 31.
- the second filter element 25b can be fixed to the sleeve 31 by means of laser stitching or spot welding with at least one point.
- axial bracing of the filter element 25b between the armature 20 and the sleeve 31 can also be considered. This is particularly useful because the armature 20 is in any case braced with the sleeve 31 for the purpose of damping.
- the invention is not limited to the illustrated embodiments and z. B. also suitable for outward opening fuel injection valves 1 or other anchor shapes, for example flat anchors.
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
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10130205A DE10130205A1 (de) | 2001-06-22 | 2001-06-22 | Brennstoffeinspritzventil |
DE10130205 | 2001-06-22 | ||
PCT/DE2002/001927 WO2003001051A1 (fr) | 2001-06-22 | 2002-05-25 | Soupape d'injection de carburant |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1402172A1 true EP1402172A1 (fr) | 2004-03-31 |
EP1402172B1 EP1402172B1 (fr) | 2004-11-17 |
Family
ID=7689115
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP02745088A Expired - Lifetime EP1402172B1 (fr) | 2001-06-22 | 2002-05-25 | Soupape d'injection de carburant |
Country Status (6)
Country | Link |
---|---|
US (1) | US6994281B2 (fr) |
EP (1) | EP1402172B1 (fr) |
JP (1) | JP4008875B2 (fr) |
KR (1) | KR20030036712A (fr) |
DE (2) | DE10130205A1 (fr) |
WO (1) | WO2003001051A1 (fr) |
Families Citing this family (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10326343A1 (de) * | 2003-06-11 | 2004-12-30 | Robert Bosch Gmbh | Brennstoffeinspritzventil |
DE102004009631A1 (de) * | 2004-02-27 | 2005-09-15 | Robert Bosch Gmbh | Brennstoffeinspritzventil |
DE102005019837A1 (de) * | 2005-04-28 | 2006-11-02 | Robert Bosch Gmbh | Brennstoffeinspritzventil und Verfahren zu dessen Montage |
JP2010526823A (ja) | 2007-05-10 | 2010-08-05 | グラクソスミスクライン・リミテッド・ライアビリティ・カンパニー | Pi3キナーゼ阻害物質としてのキノキサリン誘導体 |
JP5394298B2 (ja) * | 2010-03-26 | 2014-01-22 | 株式会社ケーヒン | 電磁式燃料噴射弁 |
US8460422B2 (en) | 2010-09-17 | 2013-06-11 | Caterpillar Inc. | Exhaust aftertreatment system, and engine service package having fuel filtering mechanism |
KR101042596B1 (ko) * | 2010-10-19 | 2011-06-20 | 윤창요 | 한글교습도구 |
EP2597296B1 (fr) * | 2011-11-23 | 2014-10-29 | Continental Automotive GmbH | Ensemble de soupape pour soupape d'injection et soupape d'injection |
DE102012202253A1 (de) * | 2012-02-15 | 2013-08-22 | Robert Bosch Gmbh | Brennstoffeinspritzventil |
JP5857952B2 (ja) | 2012-12-26 | 2016-02-10 | 株式会社デンソー | 燃料噴射弁 |
DE102013206600B4 (de) | 2013-04-12 | 2015-08-06 | Continental Automotive Gmbh | Einspritzsystem zum Einspritzen von Kraftstoff in eine Brennkraftmaschine und Regelverfahren für ein solches Einspritzsystem |
DE102013207555B3 (de) | 2013-04-25 | 2014-10-09 | Continental Automotive Gmbh | Verfahren zur Einspritzmengenadaption |
EP2796703B1 (fr) * | 2013-04-26 | 2016-07-20 | Continental Automotive GmbH | Ensemble de soupape pour soupape d'injection et soupape d'injection |
EP2860386A1 (fr) * | 2013-10-10 | 2015-04-15 | Continental Automotive GmbH | Injecteur pour moteur à combustion |
EP3076004B1 (fr) * | 2015-04-02 | 2018-09-12 | Continental Automotive GmbH | Ensemble de soupape avec un élément de retenue de particules et soupape de fluide |
EP3267026B1 (fr) * | 2016-07-08 | 2019-05-29 | Continental Automotive GmbH | Ensemble de soupape pour soupape d'injection et soupape d'injection |
CN114811067A (zh) * | 2022-05-07 | 2022-07-29 | 江苏亿德隆石油机械有限公司 | 一种具有过滤功能的手动节流阀 |
Family Cites Families (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5190223A (en) * | 1988-10-10 | 1993-03-02 | Siemens Automotive L.P. | Electromagnetic fuel injector with cartridge embodiment |
JPH04200710A (ja) | 1990-11-30 | 1992-07-21 | Toyobo Co Ltd | フィルターユニット |
JPH0510221A (ja) * | 1991-07-03 | 1993-01-19 | Nippondenso Co Ltd | 電磁式燃料噴射弁 |
US5238192A (en) * | 1991-12-18 | 1993-08-24 | Siemens Automotive L.P. | Filter for solenoid operated fluid metering devices |
WO1993018299A1 (fr) | 1992-03-05 | 1993-09-16 | Siemens Automotive L.P. | Injecteur de carburant comportant un filtre interne |
US5325838A (en) * | 1993-05-28 | 1994-07-05 | Bennett David E | Liquified petroleum gas fuel injector |
DE4421881A1 (de) * | 1994-06-23 | 1996-01-04 | Bosch Gmbh Robert | Ventilnadel |
DE4437927C2 (de) * | 1994-10-24 | 1996-09-12 | Bosch Gmbh Robert | Magnetventilgesteuerte Kraftstoffeinspritzvorrichtung mit einer Einspritzdüse zur Kraftstoffeinspritzung in den Brennraum einer Dieselbrennkraftmaschine |
US5769328A (en) * | 1995-12-26 | 1998-06-23 | General Motors Corporation | Fuel interconnect for fuel injector |
DE19638201B4 (de) * | 1996-09-19 | 2005-05-04 | Robert Bosch Gmbh | Brennstoffeinspritzventil |
DE19815789A1 (de) * | 1998-04-08 | 1999-10-14 | Bosch Gmbh Robert | Brennstoffeinspritzventil |
DE19946602A1 (de) * | 1999-09-29 | 2001-04-12 | Bosch Gmbh Robert | Brennstoffeinspritzventil |
DE19950761A1 (de) * | 1999-10-21 | 2001-04-26 | Bosch Gmbh Robert | Brennstoffeinspritzventil |
US6363915B1 (en) * | 2000-06-29 | 2002-04-02 | Siemens Automotive Corporation | Fuel injector valve with motion damper |
-
2001
- 2001-06-22 DE DE10130205A patent/DE10130205A1/de not_active Withdrawn
-
2002
- 2002-05-25 DE DE50201582T patent/DE50201582D1/de not_active Expired - Lifetime
- 2002-05-25 US US10/362,399 patent/US6994281B2/en not_active Expired - Fee Related
- 2002-05-25 JP JP2003507414A patent/JP4008875B2/ja not_active Expired - Fee Related
- 2002-05-25 EP EP02745088A patent/EP1402172B1/fr not_active Expired - Lifetime
- 2002-05-25 WO PCT/DE2002/001927 patent/WO2003001051A1/fr active IP Right Grant
- 2002-05-25 KR KR10-2003-7002523A patent/KR20030036712A/ko not_active Application Discontinuation
Non-Patent Citations (1)
Title |
---|
See references of WO03001051A1 * |
Also Published As
Publication number | Publication date |
---|---|
KR20030036712A (ko) | 2003-05-09 |
WO2003001051A1 (fr) | 2003-01-03 |
DE10130205A1 (de) | 2003-01-02 |
DE50201582D1 (de) | 2004-12-23 |
JP4008875B2 (ja) | 2007-11-14 |
JP2004521252A (ja) | 2004-07-15 |
US20040099753A1 (en) | 2004-05-27 |
EP1402172B1 (fr) | 2004-11-17 |
US6994281B2 (en) | 2006-02-07 |
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