EP1307648B1 - Fuel-injection valve - Google Patents

Fuel-injection valve Download PDF

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Publication number
EP1307648B1
EP1307648B1 EP20010962561 EP01962561A EP1307648B1 EP 1307648 B1 EP1307648 B1 EP 1307648B1 EP 20010962561 EP20010962561 EP 20010962561 EP 01962561 A EP01962561 A EP 01962561A EP 1307648 B1 EP1307648 B1 EP 1307648B1
Authority
EP
European Patent Office
Prior art keywords
fuel injection
armature
injection valve
guide sleeve
characterized
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 - Fee Related
Application number
EP20010962561
Other languages
German (de)
French (fr)
Other versions
EP1307648A1 (en
Inventor
Guenther Hohl
Martin Maier
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Robert Bosch GmbH
Original Assignee
Robert Bosch GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority to DE2000136811 priority Critical patent/DE10036811A1/en
Priority to DE10036811 priority
Application filed by Robert Bosch GmbH filed Critical Robert Bosch GmbH
Priority to PCT/DE2001/002700 priority patent/WO2002010584A1/en
Publication of EP1307648A1 publication Critical patent/EP1307648A1/en
Application granted granted Critical
Publication of EP1307648B1 publication Critical patent/EP1307648B1/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02MSUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M61/00Fuel-injectors not provided for in groups F02M39/00 - F02M57/00 or F02M67/00
    • F02M61/16Details not provided for in, or of interest apart from, the apparatus of groups F02M61/02 - F02M61/14
    • F02M61/20Closing valves mechanically, e.g. arrangements of springs or weights or permanent magnets; Damping of valve lift
    • F02M61/205Means specially adapted for varying the spring tension or assisting the spring force to close the injection-valve, e.g. with damping of valve lift
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02MSUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M51/00Fuel-injection apparatus characterised by being operated electrically
    • F02M51/06Injectors peculiar thereto with means directly operating the valve needle
    • F02M51/061Injectors peculiar thereto with means directly operating the valve needle using electromagnetic operating means
    • F02M51/0625Injectors peculiar thereto with means directly operating the valve needle using electromagnetic operating means characterised by arrangement of mobile armatures
    • F02M51/0664Injectors 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
    • F02M51/0671Injectors 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
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02MSUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M51/00Fuel-injection apparatus characterised by being operated electrically
    • F02M51/06Injectors peculiar thereto with means directly operating the valve needle
    • F02M51/061Injectors peculiar thereto with means directly operating the valve needle using electromagnetic operating means
    • F02M51/0625Injectors peculiar thereto with means directly operating the valve needle using electromagnetic operating means characterised by arrangement of mobile armatures
    • F02M51/0664Injectors 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
    • F02M51/0685Injectors 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
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02MSUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M61/00Fuel-injectors not provided for in groups F02M39/00 - F02M57/00 or F02M67/00
    • F02M61/04Fuel-injectors not provided for in groups F02M39/00 - F02M57/00 or F02M67/00 having valves, e.g. having a plurality of valves in series
    • F02M61/10Other injectors with elongated valve bodies, i.e. of needle-valve type
    • F02M61/12Other injectors with elongated valve bodies, i.e. of needle-valve type characterised by the provision of guiding or centring means for valve bodies
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02MSUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M61/00Fuel-injectors not provided for in groups F02M39/00 - F02M57/00 or F02M67/00
    • F02M61/16Details not provided for in, or of interest apart from, the apparatus of groups F02M61/02 - F02M61/14
    • F02M61/165Filtering elements specially adapted in fuel inlets to injector
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10STECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S239/00Fluid sprinkling, spraying, and diffusing
    • Y10S239/90Electromagnetically actuated fuel injector having ball and seat type valve

Description

State of the art

The invention is based on a fuel injection valve according to the preamble of the main claim, as example, from the Publication DE 198 49 210 A known.

From DE-OS 33 14 899 is already an electromagnetic actuatable fuel injection valve is known 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. Of the. Anchor is using 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. Upon energizing the solenoid the armature is tightened in the stroke direction and takes over the first stop the valve needle with. When switching off the the Magnetic coil exciting current, the valve needle by means the first return spring in its closed position accelerates and leads over the described stop the Anchor with. Once the valve closing body on the valve seat impinges, the closing movement of the valve needle is abrupt completed. The movement of the valve needle is not rigid Connected anchor continues opposite to the stroke direction and is caught by the second return spring, d. H. the anchor swings against the first one Return spring a much lower spring constant having the second return spring. The second Return spring accelerates the anchor again in Stroke direction.

A disadvantage of the known from DE-OS 33 14 899 Fuel injector is the one incomplete Entprellung, on the other hand, it may be due to the arrangement of Anchor and valve needle for jamming or jamming come through center offset of the valve needle or the anchor. This is due to manufacturing defects in the individual Reinforced components of the fuel injection valve and This leads to malfunctions of the Fuel injector.

In the US-PS 5,299,776 is also in this context been proposed, the anchor is not rigid with the Valve needle to connect, but the anchor a certain allow axial movement play on the valve needle.

U.S. Patent 5,299,776 Fuel injector is, however, with a so-called. Flat anchor provided, which is not performed in the valve body is, but moves freely to the inner pole of the coil. In addition, the valve needle has only one guide sleeve, on which is supported by the return spring. As lower Guide unit serves a connected to the valve body Guide body, although enclosing the valve needle, with this is not connected non-positively.

The disadvantage of this arrangement is in particular in the Restriction of the degrees of freedom of the valve needle movement via the guide sleeve connected to the valve housing and thus in danger of tilting the valve needle. To the to meet, high-precision manufactured components are needed, which is due to high costs or a large Distinguish production costs.

Advantages of the invention

The fuel injection valve according to the invention Characteristic features of claim 1 has the other hand the advantage of that through the two guide sleeves as well caused by the central recess of the anchor radial and axial play of the valve needle for a so much Freedom of movement allows tilting to become impossible and on the other the individual components of the Fuel injection valve with low production costs for example, through low production costs Deep drawing can be made as the tolerance of inventive design against manufacturing errors the components is very high.

By the measures listed in the dependent claims are advantageous developments of the main claim specified fuel injector possible.

Another advantage is the wedge-shaped or spherical Execution of the guide sleeves or the corresponding Elevations of the anchor end faces, which angle error of the Valve needle relative to the longitudinal axis of Fuel injector compensates.

Furthermore, the symmetrical design or the rotatable Storage of the valve needle in the sealing seat advantageous because the valve needle thereby even with large center offsets always optimally align.

Through the gaps between the guide sleeves and the anchor In addition, a slight pre-acceleration of the Valve needle can be reached before the anchor the valve needle takes off from the sealing seat. Thus, the opening times or the metered fuel quantities are improved.

drawing

Embodiments of the invention are shown in simplified form in the drawing and explained in more detail in the following description. Show it:

Fig. 1
a schematic section through a first embodiment of a fuel injection valve according to the invention,
Fig. 2
an enlarged, schematic section through the fuel injection valve according to the invention shown in Fig. 1 in the region II in Fig. 1, and
Fig. 3
an enlarged, schematic section through a second embodiment of a fuel injection valve according to the invention in area II in Fig. 1st
Description of the embodiments

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 injection valve 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 guided. 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 zventil 1 is it in the exemplary embodiment to an inward opening fuel injection valve 1, which via a Spray opening 7 has.

The valve needle 3 is rotatably mounted in the sealing seat to a to allow easy needle guidance. The twist preparation of the fuel injection valve 1 is not influenced, since the valve needle 3 rotationally symmetrical is executed.

The nozzle body 2 is by a seal 8 against the Outer pole 9 of a magnetic coil 10 sealed. The magnetic coil 10 is encapsulated in a coil housing 11 and on a Coil wound 12, which at an inner pole 13 of Magnetic coil 10 is applied. The inner pole 13 and the outer pole 9 are separated and supported by a gap 26 on a connecting member 29 from. The magnetic coil 10th is via a line 19 of a via an electrical Plug contact 17 energized electrical power. Of the Plug contact 17 is of a plastic casing 18th surrounded, which can be molded on the inner pole 13.

The valve needle 3 is in a valve needle guide fourteenth guided, which is designed disk-shaped. to Stroke adjustment is a paired shim 15. An the other side of the dial 15 is a Anchor 20. This is about a first guide sleeve 35th non-positively connected to the valve needle 3 in conjunction, which by a weld 22 with the first guide sleeve 35th connected is. On the first guide sleeve 35 is supported a return spring 23 from which in the present Design of the fuel injection valve 1 by a sleeve 24th is brought to bias. A second guide sleeve 36, which with the valve needle 3 via a weld 33rd connected, serves as a lower anchor stop.

The armature 20 has a central recess 34, through which protrudes the valve needle 3. The radial Diameter of the central recess 34 is larger than that Diameter of the valve needle 3, so that the armature 20 a having radial clearance relative to the valve needle 3. These Action provides in conjunction with the guide sleeves 35 and 36 sure that the valve needle 3 is not tilted or jammed.

A detailed description of the in Fig. 1 with II marked area between the guide sleeves 35 and 36 is closer in the description of FIGS. 2 and 3 explained.

In the valve needle guide 14, the armature 20 and the Valve seat body 5 extend fuel channels 30a to 30c, the fuel, which has a central Fuel supply 16 supplied and through a filter element 25th is filtered, lead to the spray opening 7. The Fuel injection valve 1 is opposed by a seal 28 a not shown cylinder head or a Fuel distribution line sealed.

In the idle state of the fuel injection valve 1, the Valve needle 3 of the return spring 23 via the first Guide sleeve 35 against the stroke direction so acted upon, that the valve closing body 4 on the valve seat 6 in sealing Investment is held. Upon excitation of the solenoid coil 10 builds this a magnetic field, which between the Guide sleeves 35 and 36 freely movable armature 20 first to the first guide sleeve 35 and then pulls the anchor 20th with the valve needle 3 and the first guide sleeve 35th against the spring force of the return spring 23 in the stroke direction emotional. The valve needle 3 takes the second Guide sleeve 36, which welded to the valve needle 3 is, also in the stroke direction with. The with the valve needle 3rd in operative connection valve closing body 4 lifts from the valve seat 6 and fuel is on the Sprayed ejection opening 7.

If the coil current is turned off, the armature 20 drops sufficient reduction of the magnetic field by the pressure of the Return spring 23 from the inner pole 13, resulting in the the valve needle 3, the stop sleeves 35 and 36 and the Anchor 20 existing unit moves against the stroke direction. As a result, the valve closing body 4 is placed on the Valve seat surface 6 and the fuel injection valve. 1 will be closed.

Fig. 2 shows an abstract, highly schematic Representation of the designated in Fig. 1 with II area.

Between the first guide sleeve 35, on which the Restoring spring 23 is supported, and the second guide sleeve 36th the armature 20 is arranged. Through the central recess 34 of the armature 20, whose diameter is slightly larger than the diameter of the armature 20 by cross-valve needle 3 is selected, is a radial play of the armature 20th ensured. Since between the first end face 37 of the Anchor 20 and the first guide sleeve 35, a first gap 43 and between the second end face 38 of the armature 20th and the second guide sleeve 36, a second gap 44th is formed, is also a slight axial play available. The armature 20 is only by the im present first embodiment sleeve-shaped formed Außenpol 9_des fuel injection valve. 1 accurately and precisely guided. In the case of the reference numeral 9th characterized sleeve-shaped member may also be a non-magnetic thin-walled sleeve as part of Valve housing act.

The guide sleeves 35 and 36 are in turn in the inner pole 13 and in the nozzle body 2 of the fuel injection valve. 1 each with a minor game. The Guide sleeves 35 and 36 are fixed to the valve needle 3 connected, preferably welded. This will ensured that on the one hand the rotational symmetry of the Valve needle 3 is maintained as well as a flawless Guide the valve needle 3 and the armature 20 even at high Center offset or large manufacturing inaccuracies of used parts is guaranteed.

If the current exciting the magnetic coil 10 is turned on, becomes after sufficient structure of the magnetic field of the armature 20 at pulled the inner pole 9. In this case, the armature 20 receives the force of the return spring 23 via the first guide sleeve 35, the valve needle 3, whereby the Fuel injection valve 1 is opened. Being between the first guide sleeve 35 and the armature 20 of the first gap 43, the armature 20 is first due to the magnetic field vorbeschleunigt, before the magnetic field when tightening the Ankers 20 lifting against the force of the return spring 23 must do. As a result, besides ensuring the freely movable armature 20 and the tilt-free Operation of the valve needle 3 and the opening times of the Fuel injection valve 1 can be improved.

Likewise, after switching off the coil current, the armature 20th by the return spring 23 first from the inner pole thirteenth pressed and over the stroke of the second gap 44th vorbeschleunigt before the armature 20 on the second Guide sleeve 36, the valve needle 3 entrains and the Fuel injection valve 1 is closed. Thereby can in addition to the guarantee of the floating armature 20 or the tilt-free operation of the valve needle 3 also the Closing times of the fuel injection valve 1 improved become. Overall, these measures also improve the Accuracy of the metered amount of fuel.

Fig. 3 shows in the same view as Fig. 2, a second Embodiment of the invention Fuel injection valve 1.

To further improve the leadership of the free anchor 20th are in the present second embodiment, the End faces 37 and 38 of the armature 20 facing surfaces 39th and 40 of the guide sleeves 35 and 35 are splined or conical formed. As corresponding stop areas to the wedged surfaces 39 and 40 of the guide sleeves 35 and 36th serve surveys 41 and 42, which at the end faces 37 and 38 of the armature 20 are rotationally symmetrical and For example, frustoconical or spherical or dome-shaped.

The surveys 41 and 42 thus formed are wedged Surfaces 39 and 40 dappled and thus ensure a more accurate Guiding the valve needle 3 in the guide sleeves 35 and 36, without the free movement of the armature 20 and the Restrict rotational symmetry of the valve needle 3.

Since the gaps 43, 44 in the sum of their axial extent Overall, smaller than the height of the taps are, can the armature 20 does not come out of the troughs of the wedged surfaces 39 and 40 of the guide sleeves 35 and 36 solve. The Valve needle 3 therefore can not tilt or jam.

The invention is not limited to those shown Embodiments limited and also for a variety other, especially for outward opening Fuel injectors applicable.

Claims (14)

  1. Fuel injection valve (1) for fuel injection systems of internal combustion engines, having a solenoid (10), a valve needle (3) which is loaded by a restoring spring (23) in a closing direction in order to activate a valve closing body (4) which forms a sealing seat together with a valve seat face (6), an armature (20) which is connected to the valve needle (3) in a frictionally locking fashion, and a first guide sleeve (35) which is connected to the valve needle (3), characterized in that the valve needle (3) is connected to a second guide sleeve (36) in a frictionally locking fashion, wherein the armature (20) is arranged in an axially freely moveable fashion between the first guide sleeve (35) and the second guide sleeve (36), and in that the armature has a central recess (34) whose diameter is larger than the diameter of the valve needle (3), as a result of which the armature (20) has radial play with respect to the valve needle (3), which provides so much freedom of movement that tilting becomes impossible.
  2. Fuel injection valve according to Claim 1, characterized in that the first guide sleeve (35) is arranged at the inflow end side (37) of the armature (20), and the second guide sleeve (36) is arranged at the outflow end side (38) of the armature (20).
  3. Fuel injection valve according to Claim 1 or 2, characterized in that the first guide sleeve (35) and the second guide sleeve (36) are welded to the valve needle (3).
  4. Fuel injection valve according to one of Claims 1 to 3, characterized in that the restoring spring (23) is supported on the first guide sleeve (35).
  5. Fuel injection valve according to one of Claims 1 to 4, characterized in that the valve needle (3) engages through the central recess (34) in the armature (20).
  6. Fuel injection valve according to one of Claims 1 to 5, characterized in that the valve needle (3) is rotatably mounted in the sealing seat.
  7. Fuel injection valve according to Claim 6, characterized in that the valve needle (3) is of rotationally symmetrical design.
  8. Fuel injection valve according to one of Claims 1 to 7, characterized in that a first gap (43) is formed between the inflow end side (37) of the armature (20) and the first guide sleeve (35).
  9. Fuel injection valve according to Claim 8, characterized in that a second gap (44) is formed between the outflow end side (38) of the armature (20) and the second guide sleeve (36).
  10. Fuel injection valve according to one of the preceding claims, characterized in that the guide sleeves (35, 36) each have a wedge-shaped face (39, 40).
  11. Fuel injection valve according to Claim 10, characterized in that the wedge-shaped faces (39, 40) each face the armature (20).
  12. Fuel injection valve according to Claim 11, characterized in that a first wedge-shaped elevation (41) on the inflow end side (37) of the armature (20) corresponds to the wedge-shaped face (39) of the first guide sleeve (35).
  13. Fuel injection valve according to Claim 11 or 12, characterized in that a second wedge-shaped elevation (42) on the outflow end side (38) of the armature (20) corresponds to the wedge-shaped face (40) of the second guide sleeve (36).
  14. Fuel injection valve according to Claim 11, characterized in that the armature (20) has elevations (41, 42) which are of crowned or spherical cap shape.
EP20010962561 2000-07-28 2001-07-18 Fuel-injection valve Expired - Fee Related EP1307648B1 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
DE2000136811 DE10036811A1 (en) 2000-07-28 2000-07-28 Fuel injector
DE10036811 2000-07-28
PCT/DE2001/002700 WO2002010584A1 (en) 2000-07-28 2001-07-18 Fuel-injection valve

Publications (2)

Publication Number Publication Date
EP1307648A1 EP1307648A1 (en) 2003-05-07
EP1307648B1 true EP1307648B1 (en) 2005-12-28

Family

ID=7650539

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20010962561 Expired - Fee Related EP1307648B1 (en) 2000-07-28 2001-07-18 Fuel-injection valve

Country Status (5)

Country Link
US (1) US6824084B2 (en)
EP (1) EP1307648B1 (en)
JP (1) JP2004505205A (en)
DE (2) DE10036811A1 (en)
WO (1) WO2002010584A1 (en)

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DE10256662A1 (en) * 2002-12-04 2004-06-17 Robert Bosch Gmbh Fuel injector
US7472844B2 (en) * 2005-12-21 2009-01-06 Caterpillar Inc. Fuel injector nozzle with tip alignment apparatus
US8387599B2 (en) 2008-01-07 2013-03-05 Mcalister Technologies, Llc Methods and systems for reducing the formation of oxides of nitrogen during combustion in engines
US8561598B2 (en) * 2008-01-07 2013-10-22 Mcalister Technologies, Llc Method and system of thermochemical regeneration to provide oxygenated fuel, for example, with fuel-cooled fuel injectors
JP4935882B2 (en) * 2009-03-05 2012-05-23 株式会社デンソー Fuel injection valve
JP5520751B2 (en) * 2010-08-31 2014-06-11 日立オートモティブシステムズ株式会社 Fuel injection valve
US9651011B2 (en) * 2012-05-08 2017-05-16 Continental Automotive Gmbh Valve assembly for an injection valve and injection valve
DE102012215779A1 (en) * 2012-09-06 2014-03-06 Robert Bosch Gmbh Injector
JP6253259B2 (en) * 2012-09-26 2017-12-27 株式会社デンソー Fuel injection valve
US9115325B2 (en) 2012-11-12 2015-08-25 Mcalister Technologies, Llc Systems and methods for utilizing alcohol fuels
JP5994642B2 (en) * 2013-01-07 2016-09-21 マツダ株式会社 Direct injection engine fuel injection system
DE102013214951A1 (en) * 2013-07-31 2015-02-05 Robert Bosch Gmbh Magnetic assembly for a valve and valve
DE102013223458A1 (en) 2013-11-18 2015-05-21 Robert Bosch Gmbh Valve for metering fluid
US20170254304A1 (en) * 2014-09-17 2017-09-07 Denso Corporation Fuel injection valve
JP6187422B2 (en) * 2014-09-17 2017-08-30 株式会社デンソー Fuel injection valve
JP6468109B2 (en) * 2015-07-21 2019-02-13 株式会社デンソー Fuel injection valve
DE102015214171A1 (en) * 2015-07-27 2017-02-02 Robert Bosch Gmbh Valve for metering a fluid
JP6175475B2 (en) * 2015-11-20 2017-08-02 株式会社ケーヒン Electromagnetic fuel injection valve
EP3260695B8 (en) * 2016-06-24 2019-07-17 CPT Group GmbH Valve assembly for an injection valve and injection valve

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US2651744A (en) * 1949-02-02 1953-09-08 Mcquaynorris Mfg Company Control device
DE3314899A1 (en) 1983-04-25 1984-10-25 Gerhard Mesenich Spring arrangement with additional dimensions for improving the dynamic behavior of electromagnet systems
DE3408012A1 (en) * 1984-03-05 1985-09-05 Mesenich Gerhard Electromagnetic injection valve
DE3808671A1 (en) * 1987-03-13 1988-09-22 Orbital Eng Pty Device and method for injecting fuel
JP2757317B2 (en) * 1989-11-09 1998-05-25 ヤマハ発動機株式会社 High pressure fuel injection device
US5299776A (en) 1993-03-26 1994-04-05 Siemens Automotive L.P. Impact dampened armature and needle valve assembly
US5661895A (en) * 1995-07-25 1997-09-02 Outboard Marine Corporatin Method of controlling the magnetic gap length and the initial stroke length of a pressure surge fuel pump
DE19849210A1 (en) 1998-10-26 2000-04-27 Bosch Gmbh Robert Fuel injection valve for internal combustion engine fuel injection system has armature movable between two stops, damping spring arranged between second stop and armature

Also Published As

Publication number Publication date
EP1307648A1 (en) 2003-05-07
JP2004505205A (en) 2004-02-19
US20030047626A1 (en) 2003-03-13
DE10036811A1 (en) 2002-02-07
US6824084B2 (en) 2004-11-30
WO2002010584A1 (en) 2002-02-07
DE50108563D1 (en) 2006-02-02

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