WO2001057390A1 - Brennstoffeinspritzventil und verfahren zu dessen betrieb - Google Patents
Brennstoffeinspritzventil und verfahren zu dessen betrieb Download PDFInfo
- Publication number
- WO2001057390A1 WO2001057390A1 PCT/DE2001/000423 DE0100423W WO0157390A1 WO 2001057390 A1 WO2001057390 A1 WO 2001057390A1 DE 0100423 W DE0100423 W DE 0100423W WO 0157390 A1 WO0157390 A1 WO 0157390A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- fuel injection
- injection valve
- armature
- magnet coil
- solenoid
- Prior art date
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
- 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
- F02M51/0617—Injectors peculiar thereto with means directly operating the valve needle using electromagnetic operating means characterised by arrangement of electromagnets or fixed armature having two or more electromagnets
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
- F01L9/00—Valve-gear or valve arrangements actuated non-mechanically
- F01L9/20—Valve-gear or valve arrangements actuated non-mechanically by electric means
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D41/00—Electrical control of supply of combustible mixture or its constituents
- F02D41/20—Output circuits, e.g. for controlling currents in command coils
-
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D41/00—Electrical control of supply of combustible mixture or its constituents
- F02D41/20—Output circuits, e.g. for controlling currents in command coils
- F02D2041/2068—Output circuits, e.g. for controlling currents in command coils characterised by the circuit design or special circuit elements
- F02D2041/2079—Output circuits, e.g. for controlling currents in command coils characterised by the circuit design or special circuit elements the circuit having several coils acting on the same anchor
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F7/00—Magnets
- H01F7/06—Electromagnets; Actuators including electromagnets
- H01F7/08—Electromagnets; Actuators including electromagnets with armatures
- H01F7/16—Rectilinearly-movable armatures
- H01F2007/1676—Means for avoiding or reducing eddy currents in the magnetic circuit, e.g. radial slots
Definitions
- the invention is based on a fuel injection valve according to the preamble of claim 1 and on a method for operating a fuel injection valve according to the preamble of claim 10.
- Another possibility is to build up a magnetic field for opening the fuel injection valve and a second magnetic field for holding the fuel injection valve in its open position.
- the strength of the holding field can then be chosen so small that the Eddy currents after switching off the holding field small sm ⁇ and thus the closing time can be shortened.
- DE 23 06 007 C3 discloses an electromagnetically actuated fuel injection valve for injecting fuel into an internal combustion engine, in which the magnetic coil has three windings which are controlled by three separate circuits. Daoei serves the first circuit for quickly opening the fuel injection valve, the second circuit for keeping the fuel injection valve open and the third circuit for generating an opposing field that clears the residual magnetic field for quickly closing the fuel injection valve.
- a disadvantage of the fuel injection valve known from DE 23 06 007 C3 is, in particular, the complex manufacture of an arrangement with three circuits which control three windings of the magnetic coil.
- the increased space required by the circuits is also a disadvantage.
- the fuel injection valve according to the invention with the features of claim 1, of course, has the advantage that a closing force can be generated with the first solenoid.
- the opening can be prepared by energizing both solenoids and then the solenoid acting in the closing direction can be switched off.
- the start of the spmsp ⁇ tzvorgangs is then advantageously initiated by switching off one of the two solenoids, which is in contrast to the usual arrangement, which the opening process is initiated by energizing the solenoid.
- the magnetic field dynamics are positively influenced by magnetic fields that have already been built up. This leads to short opening times. In The closing direction can be reversed to achieve short closing times.
- a radial gap located between the magnetic circuits, which is filled with non-magnetizable material, leads to a maximization of the magnetic forces, since the magnetic flux can only pass through the insulating material in a weakened manner. Thus the magnetic fields do not interfere with each other.
- the maximum force and a force compensation can be coordinated by the length of the gap arranged between the magnetic coils in the radial direction.
- the position of the gap in the axial direction relative to the two solenoids allows the arrangement to be symmetrized.
- Recesses in the armature parts are also advantageous, which allow a considerable reduction in weight of the moving parts without loss of magnetic force.
- Fig. 1 a partial.
- Thomas ⁇ arsteliun ⁇ an embodiment of a fuel injection valve according to the invention
- FIG. 2 shows a diagram of the switching phases of the exemplary embodiment of the fuel injection valve according to the invention shown in FIG. 1 and the forces acting during the switching processes
- FIG. 3 shows a detail of the fuel injection valve according to the invention shown in FIG. 1 in the area III in FIG. 1,
- the fuel injection valve 1 shows an excerpted sectional view of the middle part of a fuel injection valve 1.
- the fuel injection valve 1 is particularly suitable for the direct injection of fuel in a combustion chamber (not shown) of a mixture-compressing, spark-ignited internal combustion engine.
- the fuel injection valve 1 can be designed as an inward or outward opening fuel injection valve 1.
- cn is an inward opening fuel injection valve 1.
- the fuel injection valve 1 comprises a first solenoid coil 2, which is connected to a first armature part 5a of an armature 3 which in the exemplary embodiment is in two parts cooperates, and a second magnetic coil 4, which cooperates with a second armature part 5b of the armature 3.
- the first magnet coil 2 is wound on a first coil carrier 6 and the second magnet coil 4 is wound on a second coil carrier 7.
- the first magnet coil 2 surrounds a first core part 8, while the second magnet coil 4 surrounds a second core part 9.
- the first magnet coil 2 and the second magnet coil 4 are separated from one another axially by a web 10.
- the web 10 is composed of a first web part 10a facing the first magnet coil 2 and a second web part 10b facing the second magnet coil 4, which are separated from one another by a layer 11, which consists of non-agglomerable material.
- the web parts 10a and 10b are not necessarily the same size.
- the axial position of the layer 11 can be adjusted. If the balancing z. B. optimized in favor of the opening process, the axial position of the non-magnetizable layer 11 is shifted slightly from the central position m direction of the first solenoid 2. As a result, the magnetic flux density m of the web part 10a adjoining the first magnet coil 2 is increased compared to that in the web part 10b.
- the first anchor part 5a and the second anchor part 5b are arranged between the first core part 8 and the second core part 9.
- the anchor parts 5a and 5b have a cutout 12 which is conical in shape and leads to a reduction in the weight of the movable parts.
- a valve needle 13 extends through the first core part 8, the second core part 9 and the two anchor parts 5a and 5b.
- a working gap 25 is formed between the second armature part 5b and the second core part 9 in the closed state of the fuel injection valve 1.
- the first anchor part 5a stands with the Valve needle 13 via a first flange 14 m operative connection, while the second anchor part 5b is connected via a second flange 15 to the valve needle 13 m operative connection.
- a return spring 17 is clamped, which presses the valve needle 13 in the spraying direction onto a sealing seat, not shown, and thus holds the fuel injection valve 1 m in the closed position.
- the fuel injection valve 1 is surrounded by a valve housing 20, which in the area of the second solenoid 4 and in the area of the first solenoid 2 z. B. one, ideally has two slots 21 which run in the axial direction and ensure a reduction in the influence of the eddy currents or the diffusion of the magnetic field induced in the valve housing 20 during operation of the fuel injection valve 1.
- a slotted valve housing 20 such slits 21 can, for. B. also be provided in the core parts 8 and 9, as is apparent from FIGS. 4B and 5B.
- the fuel is supplied centrally and in the flow direction indicated by the arrow 22 through the central recess 23 of the fuel injection valve 1 and through the fuel channels 24a, the armature parts 5a and 5b and fuel channels 24b in the guide element 18 to the sealing seat.
- first magnet coil 2 and the second magnet coil 4 If an oppositely directed excitation current is applied to the first magnet coil 2 and the second magnet coil 4, a magnetic field is induced in each case in the first magnet coil 2 and the second magnet coil 4, which are opposite to each other. Since the magnetic fields in the first magnet coil 2 and the second magnet coil 4 are directed in opposite directions, the effect of the magnetic fields in the spray direction and in the feed direction is initially canceled.
- the armature 3 is held in contact with the first core part 8 by the magnetic force of the first magnet coil 2 acting on it.
- the effect of the second magnet coil 4 is small due to the working gap 25 between the second armature part 5b and the second core part 9.
- the current exciting the first solenoid 2 is switched off, as a result of which no magnetic force is exerted on the armature 3 by the first solenoid 2.
- the armature 3 is now drawn in by a distance which corresponds to the working gap 25, i the second solenoid 4 against the force of the return spring 17.
- the valve needle 13 is carried along by the armature 3 in the opening direction via the second flange 15.
- a valve closing body (not shown) is formed, which lifts off from a valve seat surface (not shown) due to the movement of the valve needle 13 and thereby opens the fuel injection valve 1.
- the working gap 25 formed between the second armature part 5b and the second core part 9 is now closed.
- An equally large working gap 25 is in the open state of the fuel injection valve 1 between the first armature part 5 a and the first core part 8.
- the first solenoid 2 is energized again, so that the armature 3 experiences a force in the direction of the first solenoid 2, which, however, is smaller than the force exerted by the second solenoid 4 due to the working gap 25. If the current that excites the second magnet coil 4 is switched off, the armature 3 is accelerated in the spray direction by the sum of the forces of the return spring 17 and the first magnet coil 2 together with the valve needle 13. Through the previous energization the first solenoid 2 and the resulting fall of the armature 3 from the second core part 9, a rapid closing movement is achieved. Short and, above all, precise closing times, which are only slightly affected by adhesion and eddy currents, are the positive result.
- the upper diagram indicates the electrical control command t x for the valve opening.
- the acting magnetic forces F mag are shown as a function of time t.
- the magnetic force of the second magnet coil 4 is shown above the time axis, while the magnetic force of the first magnet coil 2 is shown below the time axis.
- the first solenoid 2 and the second solenoid 4 are simultaneously energized with an excitation current which is approximately the same in terms of magnitude but in the opposite direction.
- the first solenoid 2 is switched off to open the fuel injector 1.
- the magnetic force of the second magnet coil 4 attracts the armature 3 m opening direction. If the armature 3 strikes the second core part 9, the magnetic force can be reduced to the necessary holding force by regulating the excitation current.
- the first solenoid 2 is energized again and at the same time the excitation current through the second solenoid 4 is increased again.
- the first magnet coil 2 again exerts a magnetic force on the armature 3, which moves the valve needle 13 in the closing direction together with the force of the return spring 17 via the first flange 14 and the second flange 15 after the second magnet coil 4 has been switched off.
- the magnetic force drops slowly after switching off ⁇ es the first magnet coil 2 exciting current to zero.
- the lower diagram in FIG. 2 represents the sum of the forces (magnetic force of the first and second solenoid coils 2 and 4 and the restoring force of the return spring 17).
- the first solenoid coil 2 and the second solenoid coil 4 are energized in the preparatory phase when the fuel injector 1 is opened , only the restoring force of the return spring 17 remains as the resultant force, since the magnetic fields are of the same size but are directed in opposite directions.
- the return spring 17 keeps the fuel injection valve 1 m closed during this phase. If the first magnet coil 2 is switched off, the magnetic force of the second magnet coil 4 exceeds the restoring force of the restoring spring 17, as a result of which the fuel injection valve 1 is opened.
- the magnetic force decreases again by regulating the excitation current down to the holding current. However, it still exceeds the force of the return spring 17, so that the fuel injection valve remains 1 m in the open position. If the first solenoid 2 is energized again in preparation for the closing process, this initially has no effect on the prevailing force relationships. Only when the second solenoid 4 is switched off, only the magnetic force of the first solenoid 2 and the restoring force of the return spring 17 m act in the same direction, as a result of which the fuel injection valve 1 is closed.
- FIG 3 shows a detail of the sectional view of a detail of the exemplary embodiment of the fuel injector 1 according to the invention described in FIG. 1 in the area III m.
- FIG Magnetic coil 2 and the second magnet coil 4 is the energization state of the first magnet coil 2 and the second magnet coil 4 during the open phase of the Fuel injector 1 shown.
- Only those parts of the fuel injector 1 are shown which are required to explain the mode of operation. Components already described are provided with the same reference numerals.
- the position of the layer 11 enables the optimization of either the opening or the closing process, depending on whether the layer 11 is arranged closer to the first magnet coil 2 or the second magnet coil 4, since either the first armature part 5a or the second armature part 5b is stronger due to the respective magnetic field being affected.
- the radial expansion of the layer 11 need not divide the entire valve housing 20. It is sufficient to make a slot in the valve housing 20 up to the desired radial extent and to fill it with the non-magnetizable layer 11.
- FIGS. 4A and 4B show the diffusion of the magnetic field in a radial sectional view in FIGS. 4A and 4B and in a radial sectional view the course of the eddy currents in the core part 8 in FIGS. 5A and 5B.
- the cuts run along the line IV-IV, VV in FIG. 1.
- 4A shows, for comparison, an unslit core part 8 in a radial section along the line IV-IV and the diffusion of the magnetic field induced in the core part 8 of the first magnet coil 2.
- FIG. 4B shows the core part 8 in a radial section along the line IV-IV in a double slotted area and the diffusion of the magnetic field induced in the core part 8 of the first magnet coil 2.
- the core part 8 is in two parts 8a and 8b divided.
- the magnetic field is not closed in a circle due to the slots 21 between the parts 8a and 8b. As a result, losses can be kept lower, which has a positive effect on the drive performance of the magnetic circuits.
- FIG. 5A shows, for comparison, the course of the eddy currents in a closed core part 8 in a radial section along the line V-V.
- the eddy currents are strongly pronounced due to the uninterrupted shape of the core part 8 and therefore have a considerable influence on the closing time of the fuel injection valve 1.
- 5B shows a section along the line V-V through the double-slit core part 8.
- the eddy currents do not pass through the slots 21, but instead build up into closed eddy currents in the two parts 8a and 8b. The effect of the eddy currents is reduced overall.
- the invention is not limited to the exemplary embodiment described, but is suitable for any fuel injection valves 1 of any design, in particular also for fuel injection valves 1 opening outwards.
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Fuel-Injection Apparatus (AREA)
Abstract
Description
Claims
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020017012657A KR20020023214A (ko) | 2000-02-04 | 2001-02-02 | 연료 분사 밸브 및 그 작동방법 |
EP01913566A EP1165960B1 (de) | 2000-02-04 | 2001-02-02 | Brennstoffeinspritzventil |
JP2001556007A JP4741147B2 (ja) | 2000-02-04 | 2001-02-02 | 燃料噴射弁 |
DE50112756T DE50112756D1 (de) | 2000-02-04 | 2001-02-02 | Brennstoffeinspritzventil |
US09/958,372 US7021568B2 (en) | 2000-02-04 | 2001-02-02 | Fuel injection valve and method for operating the same |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10004961A DE10004961B4 (de) | 2000-02-04 | 2000-02-04 | Brennstoffeinspritzventil und Verfahren zu dessen Betrieb |
DE10004961.3 | 2000-02-04 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2001057390A1 true WO2001057390A1 (de) | 2001-08-09 |
Family
ID=7629840
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/DE2001/000423 WO2001057390A1 (de) | 2000-02-04 | 2001-02-02 | Brennstoffeinspritzventil und verfahren zu dessen betrieb |
Country Status (6)
Country | Link |
---|---|
US (1) | US7021568B2 (de) |
EP (1) | EP1165960B1 (de) |
JP (1) | JP4741147B2 (de) |
KR (1) | KR20020023214A (de) |
DE (2) | DE10004961B4 (de) |
WO (1) | WO2001057390A1 (de) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2256333A1 (de) * | 2009-05-19 | 2010-12-01 | Robert Bosch GmbH | Aktiv schließendes Magnetventil für Magnetinjektoren |
EP2835520A1 (de) * | 2013-08-09 | 2015-02-11 | Continental Automotive GmbH | Kraftstoffeinspritzvorrichtung und Verfahren zum Betreiben einer Kraftstoffeinspritzvorrichtung |
EP3091218A1 (de) * | 2015-05-05 | 2016-11-09 | Magneti Marelli S.p.A. | Elektromagnetisches kraftstoffeinspritzventil mit optimierung der schweissnähte |
WO2017178132A1 (de) * | 2016-04-14 | 2017-10-19 | Robert Bosch Gmbh | Kraftstoffeinspritzdüse |
Families Citing this family (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10155271A1 (de) * | 2001-11-09 | 2003-05-28 | Bosch Gmbh Robert | Common-Rail-Injektor |
DE10235240B4 (de) * | 2002-08-01 | 2008-08-14 | Robert Bosch Gmbh | Magnetventilgesteuerte Einspritzdüse |
US6892970B2 (en) * | 2002-12-18 | 2005-05-17 | Robert Bosch Gmbh | Fuel injector having segmented metal core |
US7753657B2 (en) * | 2005-02-02 | 2010-07-13 | Brp Us Inc. | Method of controlling a pumping assembly |
FI119030B (fi) | 2005-04-28 | 2008-06-30 | Waertsilae Finland Oy | Polttomoottorin polttoaineen syöttölaitteiston ohjausjärjestelmä |
JP2008095521A (ja) * | 2006-10-06 | 2008-04-24 | Denso Corp | 電磁弁装置およびそれを用いた燃料噴射システム |
US7628141B2 (en) * | 2007-02-26 | 2009-12-08 | Ford Global Technologies, Llc | Method for controlling an electrical actuator |
JP4678545B2 (ja) * | 2008-07-25 | 2011-04-27 | 株式会社デンソー | モータ駆動装置 |
JP5537472B2 (ja) | 2011-03-10 | 2014-07-02 | 日立オートモティブシステムズ株式会社 | 燃料噴射装置 |
JP5939667B2 (ja) * | 2012-02-24 | 2016-06-22 | 株式会社ケーヒン | 電磁式燃料噴射弁 |
DE102012218325A1 (de) * | 2012-10-09 | 2014-04-10 | Continental Automotive Gmbh | Aktuatoreinheit, insbesondere für die Einspritzung eines Kraftstoffs in einen Brennraum einer Verbrennungskraftmaschine |
JP6468988B2 (ja) * | 2015-11-23 | 2019-02-13 | 株式会社Soken | ソレノイド装置及びソレノイドシステム |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
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DE2306007A1 (de) | 1972-03-03 | 1973-09-06 | Hitachi Ltd | Kraftstoffversorgungs-steuervorrichtung fuer brennkraftmaschine |
US3942485A (en) * | 1970-10-07 | 1976-03-09 | Hitachi, Ltd. | Fuel injection apparatus |
EP0383064A1 (de) * | 1989-02-15 | 1990-08-22 | Robert Bosch Gmbh | Magnetanker |
WO1999049210A1 (en) * | 1998-03-27 | 1999-09-30 | General Motors Corporation | Fuel injector |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
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US3647177A (en) * | 1969-06-04 | 1972-03-07 | Gregor L Lang | Alternating current solenoids |
JPS60108559A (ja) * | 1983-11-16 | 1985-06-14 | Nippon Carbureter Co Ltd | 電磁燃料噴射弁 |
US5235954A (en) * | 1992-07-09 | 1993-08-17 | Anatoly Sverdlin | Integrated automated fuel system for internal combustion engines |
US5494219A (en) * | 1994-06-02 | 1996-02-27 | Caterpillar Inc. | Fuel injection control valve with dual solenoids |
JPH1077925A (ja) * | 1996-09-04 | 1998-03-24 | Hitachi Ltd | 燃料噴射装置及び方法 |
JPH10274016A (ja) * | 1997-03-28 | 1998-10-13 | Fuji Heavy Ind Ltd | 電磁式動弁制御装置 |
JP3707210B2 (ja) * | 1997-07-22 | 2005-10-19 | いすゞ自動車株式会社 | 燃料噴射制御装置 |
JP2000002163A (ja) * | 1998-06-16 | 2000-01-07 | Nissan Motor Co Ltd | 燃料噴射装置及び電磁石装置 |
-
2000
- 2000-02-04 DE DE10004961A patent/DE10004961B4/de not_active Expired - Fee Related
-
2001
- 2001-02-02 DE DE50112756T patent/DE50112756D1/de not_active Expired - Lifetime
- 2001-02-02 JP JP2001556007A patent/JP4741147B2/ja not_active Expired - Fee Related
- 2001-02-02 KR KR1020017012657A patent/KR20020023214A/ko not_active Application Discontinuation
- 2001-02-02 WO PCT/DE2001/000423 patent/WO2001057390A1/de active IP Right Grant
- 2001-02-02 EP EP01913566A patent/EP1165960B1/de not_active Expired - Lifetime
- 2001-02-02 US US09/958,372 patent/US7021568B2/en not_active Expired - Fee Related
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3942485A (en) * | 1970-10-07 | 1976-03-09 | Hitachi, Ltd. | Fuel injection apparatus |
DE2306007A1 (de) | 1972-03-03 | 1973-09-06 | Hitachi Ltd | Kraftstoffversorgungs-steuervorrichtung fuer brennkraftmaschine |
EP0383064A1 (de) * | 1989-02-15 | 1990-08-22 | Robert Bosch Gmbh | Magnetanker |
WO1999049210A1 (en) * | 1998-03-27 | 1999-09-30 | General Motors Corporation | Fuel injector |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2256333A1 (de) * | 2009-05-19 | 2010-12-01 | Robert Bosch GmbH | Aktiv schließendes Magnetventil für Magnetinjektoren |
EP2835520A1 (de) * | 2013-08-09 | 2015-02-11 | Continental Automotive GmbH | Kraftstoffeinspritzvorrichtung und Verfahren zum Betreiben einer Kraftstoffeinspritzvorrichtung |
CN104343603A (zh) * | 2013-08-09 | 2015-02-11 | 大陆汽车有限公司 | 流体喷射器和用于操作流体喷射器的方法 |
US9551309B2 (en) | 2013-08-09 | 2017-01-24 | Continental Automotive Gmbh | Fluid injector and method for operating a fluid injector |
EP3091218A1 (de) * | 2015-05-05 | 2016-11-09 | Magneti Marelli S.p.A. | Elektromagnetisches kraftstoffeinspritzventil mit optimierung der schweissnähte |
WO2017178132A1 (de) * | 2016-04-14 | 2017-10-19 | Robert Bosch Gmbh | Kraftstoffeinspritzdüse |
Also Published As
Publication number | Publication date |
---|---|
DE50112756D1 (de) | 2007-09-06 |
JP4741147B2 (ja) | 2011-08-03 |
DE10004961B4 (de) | 2013-08-22 |
JP2003521634A (ja) | 2003-07-15 |
EP1165960B1 (de) | 2007-07-25 |
DE10004961A1 (de) | 2001-08-09 |
EP1165960A1 (de) | 2002-01-02 |
US20020170986A1 (en) | 2002-11-21 |
US7021568B2 (en) | 2006-04-04 |
KR20020023214A (ko) | 2002-03-28 |
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