EP2837812A1 - Ventilanordnung für eine Flüssigkeitseinspritzdüse und Flüssigkeitseinspritzdüse - Google Patents

Ventilanordnung für eine Flüssigkeitseinspritzdüse und Flüssigkeitseinspritzdüse Download PDF

Info

Publication number
EP2837812A1
EP2837812A1 EP13180328.0A EP13180328A EP2837812A1 EP 2837812 A1 EP2837812 A1 EP 2837812A1 EP 13180328 A EP13180328 A EP 13180328A EP 2837812 A1 EP2837812 A1 EP 2837812A1
Authority
EP
European Patent Office
Prior art keywords
coils
actuator assembly
stator
valve
armature
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.)
Ceased
Application number
EP13180328.0A
Other languages
English (en)
French (fr)
Inventor
Stefano Filippi
Valerio Polidori
Mauro Grandi
Francesco Lenzi
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.)
Continental Automotive GmbH
Original Assignee
Continental Automotive 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
Application filed by Continental Automotive GmbH filed Critical Continental Automotive GmbH
Priority to EP13180328.0A priority Critical patent/EP2837812A1/de
Publication of EP2837812A1 publication Critical patent/EP2837812A1/de
Ceased legal-status Critical Current

Links

Images

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M51/00—Fuel-injection apparatus characterised by being operated electrically
    • F02M51/06—Injectors peculiar thereto with means directly operating the valve needle
    • 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
    • F02M51/0621—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 acting on one mobile 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
    • 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
    • F02M51/0635—Injectors peculiar thereto with means directly operating the valve needle using electromagnetic operating means characterised by arrangement of mobile armatures having a plate-shaped or undulated armature not entering the winding
    • F02M51/0642—Injectors peculiar thereto with means directly operating the valve needle using electromagnetic operating means characterised by arrangement of mobile armatures having a plate-shaped or undulated armature not entering the winding the armature having a valve attached thereto
    • F02M51/0653—Injectors peculiar thereto with means directly operating the valve needle using electromagnetic operating means characterised by arrangement of mobile armatures having a plate-shaped or undulated armature not entering the winding the armature having a valve attached thereto the valve being an elongated body, e.g. a needle valve
    • 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
    • F02M2200/08—Fuel-injection apparatus having special means for influencing magnetic flux, e.g. for shielding or guiding magnetic flux

Definitions

  • the present disclosure relates to an actuator assembly and to a fluid injection valve.
  • the fluid injection valve may be a fuel injection valve of a combustion engine.
  • Fluid injection valves can be used for internal combustion engines where they may be arranged in order to dose the fuel into an intake manifold of the internal combustion engine or directly into the combustion chamber of a cylinder of the internal combustion engine.
  • the respective fluid injection valve may be suited to dose fluids under very high pressures.
  • the pressures may be, for example, in the range of up to 500 bar and in the case of a diesel engine in the range of up to 2,500 bar.
  • an actuator assembly for a fluid injection valve is specified.
  • the actuator assembly is an electromagnetic actuator assembly. It has a central longitudinal axis.
  • a fluid injection valve is specified.
  • the fluid injection valve may be a fuel injection valve for a combustion engine.
  • the fluid injection valve expediently comprises the electromagnetic actuator assembly.
  • the fluid injection valve further comprises a valve body with a cavity and a valve needle which is received in the cavity. The cavity extends from a fluid inlet portion to a fluid outlet portion.
  • the electromagnetic actuator assembly comprises a stator.
  • the stator may be in the shape of a disc, i.e. the stator may be a stator disc stator disc.
  • the electromagnetic actuator assembly further comprises an armature which is axially movable with respect to the stator.
  • the stator and the armature preferably have no axial overlap. However, the stator and the armature preferably overlap laterally.
  • the armature may be in the shape of a disc, i.e. the armature may be an armature disc.
  • the stator comprises a plurality of coils, i.e. two or more coils, for generating a magnetic force to displace the armature.
  • each coil of the stator is in particular arranged to exert a force on the armature.
  • At least two coils may be electrically connected in series. In one development, all coils of the stator are connected in series.
  • each coil is laterally spaced from the longitudinal axis.
  • an outer contour of each of the coils does not surround the longitudinal axis.
  • each coil has a central axis which is parallel to the longitudinal axis and laterally offset with respect to the longitudinal axis.
  • the two coils of the stator are in particular smaller than the single coil which is used in conventional actuator assemblies. Therefore, the magnetic flux delay is particularly small. Thus, the actuating force on the armature can be generated particularly fast. Thus, even small fuel quantities can be injected reliably.
  • the magnetic path is particularly short to minimize losses with the maximum current density.
  • an appropriate force can be generated by the coils of the stator with reduced energy consumption.
  • the coils of the stator of the present actuator assembly need less energy.
  • the stator further comprises a base body.
  • the coils are preferably embedded in the base body.
  • the base body comprises a ferromagnetic material.
  • the radial dimension of each coil is smaller than half of the radial dimension of the base body.
  • the radial dimensions of the coil and the base body are in particular the dimensions along that radial direction which extends through the geometric center of gravity of the respective coil.
  • the "half of the radial dimension of the base body" is in particular the distance between the longitudinal axis and an outer contour of the base body in said radial direction. In this way, particularly small magnetic flux delays are achievable.
  • each coil comprises a diameter than is smaller than the half of the diameter of the fluid injection valve.
  • the actuator assembly further comprises a valve stem.
  • the valve stem is elongated in direction of the longitudinal axis. It is mechanically coupled to the armature and axially displaceable with respect to the stator. In particular, it is positionally fixed with respect to the armature.
  • the base body has an opening, in particular a central opening, through which the valve stem extends in axial direction.
  • the base body has a plurality of apertures.
  • the apertures may extend axially into the base body, for example in the shape of blind holes.
  • the apertures may extend axially through the base body.
  • the apertures are laterally spaced from the central opening.
  • Each of the coils of the stator is preferably positioned in one of the apertures. In this way, the coils can be particularly reliably fixed with the base body.
  • the coils of the stator are constructed and electrically connected in such fashion that the magnetic north poles of circumferentially adjacent coils are located at opposite axial ends of the stator.
  • coils with clockwise wound turns and coils with counter-clockwise wound turns alternate in circumferential direction.
  • Fast armature response times and/or high repetition rates are possible.
  • two electrically connected coils are respectively connected such that a direction of the electrical current is alternatively from coil to coil.
  • the coils may be evenly spaced in circumferential direction. In this way, the force exerted on the armature may be laterally well distributed.
  • the number of coils of the stator disc is a multiple of two. Hence, each two adjacent coils maximize the magnetic flux circulation. Thus, a compensation of magnetic forces can be avoided.
  • each coil comprises a cross-sectional shape transverse to the central longitudinal axis - in other words an outer contour in top view along the longitudinal axis - that differs from a circular shape.
  • the coils have a square or not regular cross-section.
  • each coil is made of a wire that has a rectangular cross-sectional shape.
  • a high fill factor - i.e. small spaces between the wire sections - is achievable.
  • magnetic field producible by the coils at given dimensions of the coils is particularly high.
  • the wire of the coils is coated by a silicone material.
  • the respective coil is embedded in a block of silicone material.
  • the coil is in particular made of aluminium in this case. In this way, in particular due to the high electrical resistance of silicone, a further increase of the filling factor is achievable.
  • each of the coils may comprise a plurality of wire sections which are connected in parallel.
  • the coil resistance is further reduced.
  • the stator is positionally fixed with respect to the valve body.
  • the valve needle is displaceable in reciprocating fashion with respect to the valve body in direction of the longitudinal axis.
  • the valve needle is in particular movable between a closing position in which it seals the fluid outlet portion of the valve body and further positions in which it enables fluid to be dispensed from the fluid injection valve through the fluid outlet portion.
  • the armature is expediently operable to transfer a force to the valve needle for axially displacing the valve needle.
  • the armature and the valve needle are coupled via the valve stem.
  • Coupling may be a direct mechanical coupling.
  • the valve stem is pressed against the valve needle to transfer the force.
  • the force may be transmitted via a hydraulic transmitter.
  • the stator and the armature are hydraulically separated from the cavity.
  • the stator and the armature are arranged in an interior of an actuator housing, the interior of the actuator housing being sealed with respect to the cavity of the valve body.
  • the fluid injection valve comprises a bellows for sealing the interior of the actuator housing against the cavity of the valve body.
  • the actuator housing may be arranged subsequent to the valve body in a direction directed from the fluid outlet portion towards the fluid inlet portion along the longitudinal axis. In other words, the actuator housing may be positioned on the side of the fluid inlet portion of the valve body opposite the fluid outlet portion.
  • Figure 1 schematically shows an fluid injection valve 100 for injecting fluid.
  • the fluid injection valve 100 is a fuel injection valve. It is in particular configured for injecting fuel into a cylinder of an internal combustion engine of, for example, a vehicle and particularly an automobile.
  • the fluid injection valve comprises a valve body 102.
  • the valve body extends along a longitudinal axis 101.
  • the valve body 102 has a cavity 103 which extends in longitudinal direction 101 from a fluid inlet portion FI to a fluid outlet portion FO.
  • a valve needle 104 is received in the cavity 103.
  • the valve needle 105 is axially displaceable with respect to the valve body 102 in reciprocating fashion.
  • the fluid injection valve 100 further comprises a valve seat which is positionally fixed with respect to the valve body 102 or in one piece with the valve body 102.
  • the valve seat defines an injection nozzle.
  • the valve needle 104 is configured to seal the injection nozzle in a closing position and to unseal the injection nozzle in further positions for dispensing fluid from the fluid injection valve 100. In the closing position, the valve needle 104 sealingly rests on the valve seat to prevent fluid flow through the injection nozzle. A fluid injection is permitted if the valve needle 104 is in further positions.
  • the fluid injection valve 100 is an outward opening valve.
  • the valve needle 104 is movable in axial direction from the fluid inlet portion FI to the fluid outlet portion FO for unsealing the injection nozzle.
  • a return spring 119 of the fluid injection valve is configured for biasing the valve needle 104 towards the closing position by means of transferring a force on the valve needle which is directed in axially towards the fluid inlet portion FI.
  • the valve needle 104 projects beyond the valve body 102 in the axial direction directed from the fluid inlet portion FI towards the fluid outlet portion FO.
  • the fluid injection valve 100 comprises an electromagnetic actuator assembly 105 for displacing the valve needle 104 away from the closing position.
  • the actuator assembly 105 shares the longitudinal axis 101 with the valve body 102.
  • the electromagnetic actuator assembly 105 comprises a stator 106 and an armature 107.
  • the stator 106 is positionally fixed with respect to the valve body 102.
  • the armature 107 is axially displaceable with respect to the stator 106 in reciprocating fashion.
  • the armature 107 is operable to transfer a force to the valve needle 104 for axially displacing the valve needle 104 away from the closing position.
  • the force is transferred from the armature 107 to the valve needle via a valve stem 1071 which is rigidly fixed to the armature 107.
  • the valve stem 1071 is elongated in longitudinal direction and extends from the armature 107 through the stator 106 to an upper end of the valve needle 102.
  • the upper end of the valve needle 102 is positioned adjacent to the fluid inlet portion FI and remote from the fluid outlet portion FO.
  • the valve stem 1071 is pressed against the upper end of the valve needle 102 to transfer the force in the present embodiment.
  • the force may be transmitted via a hydraulic transmitter which is optionally arranged between the valve stem 1071 and the upper end of the valve needle 102.
  • the actuator assembly 105 is arranged in an interior 1201 of an actuator housing 120.
  • the actuator housing 120 is positioned axially subsequent to the valve body 102 on its side remote from the fluid outlet portion FO.
  • the interior 1201 of the actuator housing 120 is hydraulically separated from the cavity 103 of the valve body 102 by means of a bellows 1021 which is fixed to the valve body 102 with one axial end and to the valve needle 104 with the opposite axial end.
  • the stator 106, the armature 107 and in the present embodiment also the valve stem 1071 and the upper end of the valve needle 104 - are not in contact with the fluid which is dispensed by the fluid injection valve 100.
  • the stator 106 is in the shape of a disc.
  • the armature 107 is also in the shape of a disc.
  • the stator 106 and the armature 107 have no axial overlap. However, the stator 106 and the armature 107 overlap laterally.
  • the stator disc 106 and the armature disc 107 are arranged coaxially with respect to the longitudinal axis 101.
  • the stator 106 comprises a multitude of coils 108 and 109.
  • FIG. 2 shows a top view of the stator 106 along the longitudinal axis 101.
  • the stator 106 of Figure 2 comprises four coils 108, 109, 110, and 111.
  • the stator comprises only two or three coils or more than four coils, for example five or six coils.
  • the coils 108 and 109 of the stator disc 106 are arranged in one area radial to the longitudinal axis 101.
  • the geometric centers of all coils lie in a common radial plane, i.e. in a plane which extends perpendicular to the longitudinal axis 101.
  • the coils 108, 109, 110, 111 are laterally spaced from the longitudinal axis 101.
  • Each coil has a central axis 1081, 1091, 1101, 1111 which is parallel to the longitudinal axis 101 and laterally offset with respect to the longitudinal axis 101.
  • the coils are not arranged coaxial. The centres of the coils are arranged side by side.
  • the coils 108, 109, 110, and 111 are embedded in a common base body 115.
  • the base body 115 has a central opening 1151 which perforates the base body 115 in longitudinal direction 101 and through which the valve stem 1071 extends.
  • the valve stem 1071 may be axially guided by the base body 115 by means of the central opening 1151.
  • the coils 108 to 111 are distributed in the base body 115 around the center of the base body 115.
  • the base body has a plurality of apertures 1152 which axially extend into the base body 115 in the shape of blind holes from the side of the base body 115 which faces towards the armature 107.
  • the number of apertures 1152 preferably equals the number of coils 108, 109, 110, 111.
  • Each coil 108; 109; 110; 111 is arranged in a respective one of the apertures 1152.
  • the coils 108, 109, 110, 111 are evenly spaced in circumferential direction. In other words, the angles between each two distance vectors from the longitudinal axis 101 to the central axis 1081, 1091, 1101, 1111 of the coils 108, 109, 110, 111 which follow one another in angular direction around the longitudinal axis 101 are equal.
  • the coils 108 and 109 are operable to exert a force on a common armature 107 when the coils are energized.
  • the distances between each of the coils 108, 109 and the armature 107 are basically the same.
  • the armature 107 moves in axial direction towards the stator 106.
  • the coils have a cylindrical shape with the central axes 1081, 1091, 1101, 1111 representing the respective cylinder axes.
  • a diameter 113 of the coils is smaller than half of a diameter 114 of the base body 115 in top view along the longitudinal axis 101.
  • the diameter 113 of the coils can be adapted to a predetermined actuator packaging.
  • the coils can have squared, polygonal, or irregular cross-sections.
  • the coils 108 to 111 are electrically connected in series.
  • the coil 108 and the coil 111 are connected to a power supply via electrical connectors 118 for energizing the coils. Further electrical connectors 118 are led from coil 108 to coil 109, from coil 109 to coil 110, and from coil 110 to coil 111.
  • the coils 108, 109, 110, 111 are arranged such that a direction 112 of the electric current alternates from coil to coil.
  • the direction 112 in coils 108 and 110 is clockwise while the direction 112 in coils 109 and 111 is counter clockwise. This is achieved by means of the turns of the coils 108, 109, 110, 111 being wound clockwise or counter-clockwise, respectively around the respective central axis 1081, 1091, 1101, 1111.
  • the magnetic north poles N of circumferentially adjacent coils 108, 109 / 109, 110 / 110, 111 /111, 108 are located at opposite axial sides of the stator 106.
  • the actuator assembly 105 - by means of the construction and electrical connection of the coils 108, 109, 110, 111 - is configured such that magnetic north poles N and magnetic south poles S of the stator 106 alternate in angular course around the longitudinal axis 101 in top view along the longitudinal axis 101.
  • the coils 108 to 111 are simply made of a wound wire.
  • Figure 3 schematically shows a longitudinal sectional view of a portion of the actuator assembly 105 through the coil 108.
  • a wire 116 is wound around the central axis 1081 for producing the turns of the coil 108.
  • the wire 116 may be a copper or an aluminium wire.
  • the wire 116 has a squared cross-section.
  • the wire turns 116 are embedded in a block of a silicone material 117.
  • the high electrical resistivity of the silicone material realizes a reliable electrical flow in the wire with a small risk of short circuits or flashovers in spite of a high filling factor, i.e. a particularly small distance between adjacent turns of the coil.
  • the magnetic flux delay is reduced.
  • a magnetic diffusion due to eddy current flow that normally generates losses can be reduced.
  • the magnetic force on the armature 107 is established faster.
  • the coils 108 to 111 of the stator 106 can be reduced in size to minimize the magnetic transient.
  • the filling factor of the coil is maximized.
  • the filling factor is further improved.
  • the term "filling factor" relates to the ratio of wire volume and complete coil volume.
  • the coil volume 115 may comprise the shape of a flat disk.
  • the electromagnetic actuator assembly 105 is for example used in dry conditions to generate high force for a fast outward opening direct solenoid fluid injection valve 100. Due to the multitude of coils 108 to 111 in the stator 106 the magnetic path is minimized and the dynamic response is improved.
  • the force generation is fast and the energy consumption is reduced to achieve the same force level under dynamic operating conditions.
  • the use of the multitude of coils 108 to 111 allows a reduction of the dimension of each single coil achieving a smaller winding diameter with minimum of one layer of turns.
  • the turns can be electrically connected in parallel. Due to the alternating wire or current orientation respectively, the coils of the stator 106 are in phase. Thus, a fast actuation is realized.

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)
EP13180328.0A 2013-08-14 2013-08-14 Ventilanordnung für eine Flüssigkeitseinspritzdüse und Flüssigkeitseinspritzdüse Ceased EP2837812A1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP13180328.0A EP2837812A1 (de) 2013-08-14 2013-08-14 Ventilanordnung für eine Flüssigkeitseinspritzdüse und Flüssigkeitseinspritzdüse

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP13180328.0A EP2837812A1 (de) 2013-08-14 2013-08-14 Ventilanordnung für eine Flüssigkeitseinspritzdüse und Flüssigkeitseinspritzdüse

Publications (1)

Publication Number Publication Date
EP2837812A1 true EP2837812A1 (de) 2015-02-18

Family

ID=48979639

Family Applications (1)

Application Number Title Priority Date Filing Date
EP13180328.0A Ceased EP2837812A1 (de) 2013-08-14 2013-08-14 Ventilanordnung für eine Flüssigkeitseinspritzdüse und Flüssigkeitseinspritzdüse

Country Status (1)

Country Link
EP (1) EP2837812A1 (de)

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4779331A (en) * 1985-03-02 1988-10-25 Robert Bosch Gmbh Method of manufacture of an electromagnetically actuatable fuel injection valve
US5315278A (en) * 1992-07-30 1994-05-24 Siemens Automotive L.P. Filament magnetic flux circuit
WO2001057389A2 (de) * 2000-02-05 2001-08-09 Robert Bosch Gmbh Elektromagnetisches einspritzventil zur steuerung einer in eine verbrennungskraftmaschine einzuspeisenden kraftstoffmenge
US20060022161A1 (en) * 2004-07-29 2006-02-02 Denso Corporation Fuel injection valve having small sized structure
DE102007028315A1 (de) * 2007-02-07 2008-08-14 Continental Teves Ag & Co. Ohg Elektromagnet
DE102007008901A1 (de) * 2007-02-23 2008-08-28 Compact Dynamics Gmbh Fluid-Einspritzventil
EP2192599A1 (de) * 2008-11-03 2010-06-02 Honeywell International Inc. Abriebfeste, hochtemperaturisolierte Drähte und Verfahren zur Herstellung davon
JP2010232082A (ja) * 2009-03-27 2010-10-14 Kurabe Ind Co Ltd 誘導加熱用コイル導線

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4779331A (en) * 1985-03-02 1988-10-25 Robert Bosch Gmbh Method of manufacture of an electromagnetically actuatable fuel injection valve
US5315278A (en) * 1992-07-30 1994-05-24 Siemens Automotive L.P. Filament magnetic flux circuit
WO2001057389A2 (de) * 2000-02-05 2001-08-09 Robert Bosch Gmbh Elektromagnetisches einspritzventil zur steuerung einer in eine verbrennungskraftmaschine einzuspeisenden kraftstoffmenge
US20060022161A1 (en) * 2004-07-29 2006-02-02 Denso Corporation Fuel injection valve having small sized structure
DE102007028315A1 (de) * 2007-02-07 2008-08-14 Continental Teves Ag & Co. Ohg Elektromagnet
DE102007008901A1 (de) * 2007-02-23 2008-08-28 Compact Dynamics Gmbh Fluid-Einspritzventil
EP2192599A1 (de) * 2008-11-03 2010-06-02 Honeywell International Inc. Abriebfeste, hochtemperaturisolierte Drähte und Verfahren zur Herstellung davon
JP2010232082A (ja) * 2009-03-27 2010-10-14 Kurabe Ind Co Ltd 誘導加熱用コイル導線

Similar Documents

Publication Publication Date Title
US8028937B2 (en) Fuel injection valve
US9046188B2 (en) Solenoid actuator with magnetic sleeving
US7584727B2 (en) Permanent magnet electromagnetic actuator for an electronic valve actuation system of an engine
EP2535552A1 (de) Ventilanordnung für ein Einspritzventil und Einspritzventil
JP4703697B2 (ja) 電磁アクチュエータ
EP2622203B1 (de) Ventilanordnung für ein einspritzventil und einspritzventil
US20130328650A1 (en) Divergent flux path magnetic actuator and devices incorporating the same
WO1999015780A1 (en) Control valve having a solenoid with a permanent magnet for a fuel injector
US20130207756A1 (en) Magnetic actuator
CN104798147A (zh) 电磁调节设备
EP3034853B1 (de) Spulenanordnung und Einspritzventil für Flüssigkeit
CN104763568A (zh) 一种电磁式喷射阀以及用于操作电磁式喷射阀的方法
JP2019511667A (ja) 磁気的に直接制御された燃料ポンプ用吸気バルブ
EP2837812A1 (de) Ventilanordnung für eine Flüssigkeitseinspritzdüse und Flüssigkeitseinspritzdüse
JPS63203981A (ja) 内燃機関の燃料噴射ポンプ用電磁弁
US9574532B2 (en) Valve assembly and injection valve
KR20060021303A (ko) 연소 기관의 연료 분사 밸브
EP2436909A1 (de) Ventilanordnung für ein Einspritzventil und Einspritzventil
US11459987B2 (en) Valve assembly having electrical actuator with balanced stator
EP2915992A1 (de) Elektromagnetische Betätigungseinrichtung für ein Einspritzventil für Flüssigkeit
CA2960812C (en) Fluid resistant solenoid and related method
EP2385239A1 (de) Ventilanordnung für ein Einspritzventil und Einspritzventil
EP2846031B1 (de) Elektromagnetische Spule für ein Flüssigkeitseinspritzventil und Flüssigkeitseinspritzventil
EP2363595A1 (de) Ventilanordnung für ein Einspritzventil und Einspritzventil
JP4511950B2 (ja) 殊に電磁弁のための電磁石

Legal Events

Date Code Title Description
17P Request for examination filed

Effective date: 20130814

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

AX Request for extension of the european patent

Extension state: BA ME

PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

R17P Request for examination filed (corrected)

Effective date: 20150818

RBV Designated contracting states (corrected)

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

17Q First examination report despatched

Effective date: 20170714

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION HAS BEEN REFUSED

18R Application refused

Effective date: 20180322