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EP2855914A1 - Injecteur de carburant - Google Patents

Injecteur de carburant

Info

Publication number
EP2855914A1
EP2855914A1 EP13714636.1A EP13714636A EP2855914A1 EP 2855914 A1 EP2855914 A1 EP 2855914A1 EP 13714636 A EP13714636 A EP 13714636A EP 2855914 A1 EP2855914 A1 EP 2855914A1
Authority
EP
European Patent Office
Prior art keywords
armature
fuel injector
anchor
injector according
fuel
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
Application number
EP13714636.1A
Other languages
German (de)
English (en)
Other versions
EP2855914B1 (fr
Inventor
Michael Kurz
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
Application filed by Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of EP2855914A1 publication Critical patent/EP2855914A1/fr
Application granted granted Critical
Publication of EP2855914B1 publication Critical patent/EP2855914B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • F02M51/0625—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
    • F02M51/0639—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 acting as a 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
    • F02M47/00—Fuel-injection apparatus operated cyclically with fuel-injection valves actuated by fluid pressure
    • F02M47/02—Fuel-injection apparatus operated cyclically with fuel-injection valves actuated by fluid pressure of accumulator-injector type, i.e. having fuel pressure of accumulator tending to open, and fuel pressure in other chamber tending to close, injection valves and having means for periodically releasing that closing pressure
    • F02M47/027—Electrically actuated valves draining the chamber to release the closing pressure
    • 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
    • F02M63/00—Other fuel-injection apparatus having pertinent characteristics not provided for in groups F02M39/00 - F02M57/00 or F02M67/00; Details, component parts, or accessories of fuel-injection apparatus, not provided for in, or of interest apart from, the apparatus of groups F02M39/00 - F02M61/00 or F02M67/00; Combination of fuel pump with other devices, e.g. lubricating oil pump
    • F02M63/0012—Valves
    • F02M63/0014—Valves characterised by the valve actuating means
    • F02M63/0015—Valves characterised by the valve actuating means electrical, e.g. using solenoid
    • F02M63/0017—Valves characterised by the valve actuating means electrical, e.g. using solenoid using electromagnetic operating means
    • F02M63/0021—Valves characterised by the valve actuating means electrical, e.g. using solenoid using electromagnetic operating means characterised by the arrangement of mobile armatures

Definitions

  • the fuel injector is provided for injecting fuel into the combustion chamber of an internal combustion engine and comprises a control chamber connected to a high-pressure side.
  • the pressure in the control room controls the movement of a nozzle needle. It is a
  • Control valve provided which the connection of the control room to a
  • the control valve has a slidably guided in a bore of a guide piece between two valve positions
  • Map slope and the scatter between individual anchor strokes affects.
  • njektors is a slow opening of the valve and a quick closing of the valve an advantage.
  • Njektors constructed such that on the one hand sets a very high closing speed of the armature and on the other hand, a relatively slow
  • Hub stop allows.
  • the residence time of the armature is reduced at the upper stroke stop in the fuel injector after switching off. This in turn allows a lower low pressure sensitivity of the armature.
  • the significantly reduced low pressure sensitivity of the armature advantageously allows the maturity of the map and the stroke to stroke spread of the invention
  • proposed fuel injector can be reduced.
  • Closing speed of the armature which in turn reduces the copy or the stroke to Hub- scattering with the same fuel injector.
  • the armature assembly of the fuel injector comprises, for example, a base anchor and an armature plate assigned to its upper side of the plan.
  • the upper plan side of the anchor of the anchor assembly comprises a number of openings, for example as
  • Stepped holes can be executed. These stepped holes run through the
  • the stepped bores comprise a portion which is formed in a larger diameter, which at a conical transition region in a
  • Closure elements is formed on the one hand by the conical transition region between the mentioned bore portions of the stepped bore, another stop by an upper anchor plate covering the upper bore portion of the stepped bore.
  • the armature Upon energization of the electric actuator for actuating the fuel injector, i. an electromagnet, the armature is attracted against the action of an armature spring, so that a closing element, which is received on the armature, releases the valve seat. During this upward movement of the armature to release the valve seat, the
  • The, for example, spherical closure elements remain in their position, i. remain placed in the tapered transition region during the opening movement until the armature assembly reaches an upper stroke stop formed by the lower face side of an electromagnet. When the upper stroke stop is reached, no acceleration forces or resistance forces due to the upcoming diesel fuel act on the basic anchor.
  • a bouncing, i. a strong abutment of the basic anchor in the implementation of its opening movement is prevented by a damper element which is disposed between the lower plan side, which forms the upper stroke stop, the electromagnet on the one hand and a corresponding abutment surface of the upper armature plate of the armature assembly.
  • the opening speed can also be influenced by the number of slots over which the Abêtmenge runs off and their cross-sectional area - to name two significant parameters.
  • the armature assembly When closing, i. a termination of the energization of the electric actuator in the form of an electromagnet, the armature assembly is driven by the action of the spring in the valve seat, as far as until the spherical closure member formed on the underside of the armature assembly the valve seat in the valve body of the fuel! njektors closes.
  • the bouncing of the armature assembly upon reaching the bottom stop, i. the valve seat can be avoided via a damping element.
  • the spherical closure elements are pressed by the pressure increase at the bottom of the base anchor from the tapered transition, so that the stepped holes are released during the closing movement and a flow of fuel is possible.
  • Closure elements are caught by the upper anchor plate overlapping the stepped holes on the top plan side of the ground anchor which forms a stop so that the closure elements can not leave the upper enlarged diameter bore portions of the stepped bores.
  • the armature assembly now learns the maximum possible closing speed, which significantly by the number of enabling in outflow of volume slots whose
  • Transition area which runs between the two bore sections of the stepped bore.
  • the upper anchor plate can be guided, for example, to a centrally arranged pin, which influences the geometry of the slots, which are designed to derive the Abêtmenge in the upper anchor plate.
  • the upper armature plate of the armature assembly can be guided to a guide diameter, which is the leading to the outflow of Abberichtmenge
  • stepped bores can be released or closed by a flexible damping element.
  • Closing described anchor assembly can be in the stepped bores in the conical transition region between the bore sections arranged spherically shaped closure elements replaced by a substantially formed as a thin disc flexible damping element.
  • the flexible, substantially disk-shaped damping element simultaneously forms a spacer of the armature assembly to the upper stroke stop, which is formed by the lower plan side of the electromagnet. That essentially
  • Disc-shaped running, flexible damping element can be pressed for example by a disc to the anchor plate.
  • the disk-shaped region of the basic anchor can have, in addition to through-flow bores, which are of untarred design, a circumferentially formed channel-shaped distributor groove, and a circumferential recess, which supports the essentially disk-shaped, flexible damping element.
  • the depth of the recess formed in the upper plan side of the basic anchor defines a desired residual air gap.
  • the residual air gap can also be defined by the thickness of the substantially disc-shaped damping element.
  • Armature assembly in the direction of the electromagnet in its energization against the action of the closing spring is the disc-shaped, flexible
  • Damping element by the dynamic pressure from the contact surface, i. the depression is pushed away from the anchor top.
  • the armature moves substantially unthrottled to the valve seat, which sets a fast closing with a high closing speed.
  • Opening speed of the armature assembly can also be achieved in that
  • Anchor slots which are usually provided on armatures, by a flexible damping element, which is, for example, cross-shaped and, for example, four anchor slots conceal or release, take place.
  • a flexible damping element which is, for example, cross-shaped and, for example, four anchor slots conceal or release, take place.
  • Anchor i. a slow opening of the valve seat on the one hand sets and on the other hand there is a fast closing movement of the inventively proposed armature assembly.
  • a reduction in the opening speed is achieved by generating a
  • Electromagnet can be achieved. This in turn allows the reduction of the degree of damping at the upper stroke stop, whereby the residence time of the armature is reduced at the upper stroke stop after switching off the electromagnet. The consequence of this is a lower low pressure sensitivity of the armature associated with the positive side effect that the ripple of the map, in particular the map slope and the stroke to Hub- scattering are reduced when operating one and the same fuel injector.
  • FIG. 1 shows a section through a fuel injector proposed according to the invention, the control chamber of which is acted upon by a high-pressure source,
  • FIG. 2 shows the armature assembly proposed according to the invention when opening the
  • FIG. 3 shows the first embodiment of the invention proposed
  • FIG. 4 is a plan view of the upper plan side of the ground anchor
  • FIG. 5 is a plan view of the upper plan side of the basic anchor with recessed ball-shaped closure elements, covered by an upper anchor plate,
  • Figure 6 shows the top view of a disc-shaped anchor with drain slots for the
  • Anchor assembly with a deformable, substantially disc-shaped formed damping element during the opening movement of the
  • FIG. 8 shows the further embodiment of the present invention proposed
  • Figure 9 is a detail of the upper portion of the second embodiment of the
  • Figure 10 shows a third embodiment of the present invention proposed
  • Figure 12 is a plan view of an armature assembly formed with a cruciform
  • Figure 13 shows the section line XIII - XIII as shown in Figure 12.
  • FIG. 1 shows a first embodiment variant of the fuel injector proposed according to the invention with an armature assembly designed according to the invention.
  • FIG. 1 shows a fuel injector 10, which comprises a valve piece 12.
  • the valve piece 12 is received in a holding body 14 via a valve clamping screw 16.
  • the valve piece 12 defines a control chamber 60 which is acted upon by an inlet throttle from a high-pressure source 84, for example a high-pressure collecting space (common rail) or a delivery unit with system pressure.
  • the control chamber 60 in the valve piece 12 is over a high-pressure source 84, for example a high-pressure collecting space (common rail) or a delivery unit with system pressure.
  • the control chamber 60 in the valve piece 12 is over a high-pressure source 84, for example a high-pressure collecting space (common rail) or a delivery unit with system pressure.
  • the control chamber 60 in the valve piece 12 is over a high-pressure source 84, for example a high-pressure collecting space (common rail) or a delivery unit with system pressure.
  • the control chamber 60 in the valve piece 12 is over a high-pressure source 84, for example
  • Outlet throttle 62 relieved of pressure, wherein a drainage channel is closed by a here spherically formed closing element 44.
  • a valve seat 42 through the spherical trained closing element 44 is closed, consequently, the control chamber 60 of the fuel injector 10 is not relieved of pressure, but is at system pressure level.
  • the fuel injector 10 includes an armature assembly 18 that is essentially a
  • Base anchor 20 and arranged on the upper plan side upper anchor plate 22 includes.
  • FIG. 1 shows that the base anchor 20 here comprises spherically formed closure elements 24 which are located in passage openings 58 which extend from the lower plan side to the upper plan side of the disk-shaped head of the basic anchor 20.
  • An upper stroke stop for limiting the armature stroke is identified by reference numeral 26 and given by a magnet bottom 30 of the electric actuator 28 designed as a magnet for actuating the fuel injector 10.
  • An outlet nozzle 34, the electric actuator in the form of a magnet are enclosed by a magnetic sleeve 32 and screwed to the holding body 14 by a magnetic clamping nut.
  • the armature assembly 18 is acted on by an armature spring 36, which exerts an armature spring force 38 in the direction of the valve seat 42.
  • the armature spring 36 is supported on a bearing surface 40 on the inside of the drain nozzle 34.
  • Reference numeral 42 denotes the valve seat, after the opening of the control chamber 60 of the fuel injector 10 is pressure relieved.
  • the valve seat 42 is closed by a ball-shaped closing element 44, which in a cap 46 on the underside of a pressure surface 52 of the base anchor 20 of the armature assembly 18th
  • the closure member 44 and the cap 46 are located within a seat 48 in which the valve seat 42 is located.
  • Seat space pressure 50 prevails in the seat space 48.
  • FIG. 2 shows the first embodiment of the invention proposed
  • FIG. 2 shows that, when the electric actuator is energized-here in the form of an electromagnet-the valve spring 12 moves upward in the vertical direction against the armature spring force 38.
  • the base anchor 20 approaches the magnet bottom 30, which represents the upper stroke stop 26.
  • the upper anchor plate 22 is received, on which in turn a damper element 70 is arranged, which is the Magnet bottom 30 of the magnet 28 is opposite.
  • Below the basic anchor 20 is located on the tapered portion of the valve member 12, a further damping element 76 on a bottom 74 of the anchor 20 of the anchor assembly 18.
  • the valve seat 42 is open, so that fuel from the system under pressure Control chamber 60 via the outlet throttle 62 in the
  • valve seat 42 flows out.
  • the valve seat 42 is released by the spherical closure element 44, which in a cap 46 on the pressure surface 52 in the lower region of the
  • Base anchor 20 is received within the seat 48. In the sitting space prevails the seat pressure 50.
  • Anchor assembly 18 in operation of the fuel injector, pressed into tapered transitional regions 56, so that the through holes 58, which extend from the bottom 74 to the top surface of the ground anchor 20, are closed when opening the armature assembly 18.
  • the stepped bores 58 are closed, so that the fuel is unable to flow through them.
  • the effluent when opening the valve seat 42 from the control chamber 60 amount flows through more detailed in Figures 4 to 6, slit-shaped channels in the direction of a central drain hole 68, which passes through the magnet 28 from.
  • Closure elements 24 remain in the position shown in FIG. closing the stepped holes 58 until the armature group 18 has reached the upper stroke stop 26 and thus no acceleration force or resistance force by the upcoming fuel on the closure elements 24 acts more.
  • a top is located above the upper anchor plate 22
  • Damper element 70 which between the bottom 30 of the magnet 28 and a Stop surface 72 of the upper anchor plate 22 is located. This is needed to avoid bouncing of the armature assembly 18 at the upper travel stop 26.
  • the opening speed of the armature assembly 18 is significantly influenced by the number of slots 64, as shown in Figures 4 to 6, as well as their cross-sectional area.
  • FIG. 3 shows the first embodiment of the proposed invention
  • Valve seat 42 i. moved in the closing direction.
  • the base anchor 20 and the recorded thereon upper anchor plate 22 move in a vertical direction downwards;
  • Stepped bore 58 are pushed out so that fuel through the now
  • the stepped bores 58 are thus released and lead to a more rapid pressure equalization between the stop surface 72, the upper anchor plate 22 and the underside 74 of the basic anchor 20.
  • the anchor assembly 18 experiences the maximum possible closing speed, which is largely determined by the number of slots 64 to be described, compare FIGS. 4, 5, 6 and their cross-sectional through areas, and, on the other hand, by the number of stepped bores 58 formed in the base anchor 20.
  • FIG. 4 shows a plan view of the basic anchor of the anchor assembly proposed according to the invention.
  • Figure 4 shows that, for example, in a 90 ° division at the top of the
  • Base anchor 20 are an outflow of the controlled tax amount favoring slots 64.
  • the cross-sectional area of the slots 64 and their number at the circumference of the basic anchor 20 can influence the outflow velocity of the removed quantity in the direction of the central drainage hole 68.
  • FIG. 4 shows that in this exemplary embodiment the base anchor 20 has a multiplicity of stepped bores 58.
  • FIG. 5 shows a basic anchor with sunken into its stepped bore
  • FIG. 5 shows that a number of slots 64 are formed on the circumference of the basic anchor 20 analogously to the illustration according to FIG. In the stepped bores 58, compare
  • the number of closure elements 24 corresponds to the number of stepped bores 58, so that each of the stepped bores 58 receives a spherically formed closure element 24 actuated by gravity and the surrounding pressure.
  • the closure elements are partially covered by them, so that the closure elements in the case of that shown in FIG. 5
  • FIG. 5 shows that a number of others are also on the upper side of the upper anchor plate 22 Slots 66 is executed, which allow easier discharge of the discharged from the control chamber amount of fuel in the direction of the central drain hole 68.
  • the upper anchor plate 22 is guided on a pin 82, which determines the radial length of the here arranged in 90 ° division further slots 66 in the upper anchor plate 22.
  • FIG. 6 shows a variant embodiment in which the upper anchor plate 22 has the shape of a ball which is trapped in the stepped bores 58 (not shown in FIG. 6)
  • Base anchor 20 may be formed.
  • FIG. 7 shows a further second embodiment of the invention
  • Embodiment shown according to which analogously to the first embodiment of the valve seat 42 is released during the opening movement of the armature assembly 18 by the closing element 44. In this case, there is an outflow of fuel from the
  • closure elements 24 according to the first embodiment variant illustrated in FIGS. 1, 2, 3 and 5 are characterized by FIG flexible disc-shaped damping element 90 replaced.
  • Damping element 90 covers flow holes 94, which are executed in the basic anchor 20.
  • the flexible damper 90 is secured over the disc 92 on top of the base anchor 20.
  • the through-bores 94 open in a circumferentially formed distributor groove 96, cf. illustration according to FIG. 9.
  • the flexible damping element 90 is replaced by the flexible damping element 90
  • Anchor space applied fuel present, so that the flexible damping element 90, the flow holes 94 closes. Due to the higher flow resistance in the armature space, the base anchor 20 and thus the entire armature assembly 18 travel at a reduced speed toward the magnet bottom 30 of the magnet 28, the magnet bottom 30 representing the upper stroke stop 26 of the armature assembly 18.
  • the flexible damping element 90 can simultaneously serve as a spacer with respect to the upper stroke stop 26, given by the magnet lower side 30.
  • Damping element 90 is a non-magnetic component. Since the flexible
  • Damping element 90 completely immersed in the opening movement of the armature assembly 18 in a recess 100 which is located on the anchor plate top 102, the flow holes 94, which open into the circumferential distribution groove 96, in the
  • Damping element 90 completely in the recess 100 at.
  • the depth of this recess 100 depends on a residual air gap 98 and a thickness 1 14, in which the flexible damping element 90 is executed.
  • Figure 8 shows the closing movement of the second embodiment of the inventively proposed armature assembly when canceling the energization of the magnet.
  • FIG. 8 shows that the spring force 38 in FIG.
  • Anchor spring 36 is a vertical downward movement of the base anchor 20 of the armature assembly 18 in the direction of the valve seat 42 in the valve piece 12.
  • valve closing occurs by the influx of fuel through the flow holes 94 a back pressure in the distribution groove 96.
  • the deformability of the substantially disc-shaped damping element 90 allows a flow of the fuel, since the flexible
  • Damping element 90 in its edge regions of the contact surface, i. of the
  • Damping element 76 is achieved to avoid bouncing. It can also be seen from the illustration according to FIG. 8 that the flexible damping element 90-shown here in its deflected position 106-passes through the disk 92, which partially dips into the central drainage bore 68, at the upper end
  • FIG. 8 shows that the control chamber 60 is relieved of pressure into the seat space 48 via the outlet throttle 62 as long as the valve seat 42 is not closed by the ball-shaped closing element 44 held in the dome 46.
  • FIG. 9 shows, on an enlarged scale, how the non-deformed flexible damping element 90 with its outer edge dips into the recess 100 on the upper plane side of the basic anchor 20.
  • Anchor plate top 102 depends on the desired residual air gap 98 and the thickness 1 14 of the flexible damping element 90.
  • Figure 9 further shows that the
  • FIG. 10 shows a further, third embodiment of the invention
  • Magnetic armature which are used in Magnetaktuatoren usually have, for reasons of magnetic flux, slots, so that the third
  • Damping element 90 for example, a cross-shaped appearance 1 12 as shown in Figure 12 a, or may also be formed as a full-round damping element, just in disk form.
  • the basic armature 20 of the armature assembly 18 moves upward in the vertical direction according to the arrow and approaches an upper stroke stop 26 given by the magnet lower side 30 of the magnet 28.
  • the flexible damping element 90 is connected to the base anchor 20 through the disc 92.
  • the disc 92 protrudes partially into the central drainage hole 68 of the
  • Another damping element 76 is located below the bottom 74 of the base anchor 20 and forms a lower damping for the
  • the basic anchor 20 comprises the pressure surface 52 on which the dome 46 is located.
  • the cap 46 partially surrounds the here spherically formed closing element 44, with which the valve seat 42 in the valve piece 12 is closed.
  • the anchor slots 104 are closed by the upper plan side of the base anchor 20 covering flexible damping element 90, as in the armature space fuel from the gap between the magnet bottom 30 and the top of the flexible
  • Damping element is displaced, so that the opening speed of the
  • Armature assembly 18 is lowered.
  • FIG. 12 is a plan view of a basic anchor with armature slots 104, wherein in this third variant of the solution proposed according to the invention, the flexible damping element has a cross shape 1 10 complementary to the number of armature slots 104.
  • Other flow holes 108 present in the base anchor 20 are continuously open, i. are not of a deflectable bendable
  • the deformable flexible damping element complementary to the number of anchor slots 104 in the basic anchor also have a different geometry.
  • FIG. 13 shows the sectional profile XIII-XIII as shown in FIG. From Figure 13 shows that in the anchor plate top 102 in the region of the anchor slots 104 each have a recess 100 is introduced into which individual arms 1 12 of the cross-shaped 1 10 formed, flexible damping element 90 so that the anchor slots 104 - as shown in FIG 13 shown - are closed flat.
  • the proposed solution according to the invention according to its three embodiments shown above can be used in non-pressure balanced solenoid valve fuel injectors, which are operated at a very high system pressure level. The height of the armature stroke of the armature assembly 12 at corresponding
  • pressure balanced solenoid valve injectors are used because with constantly increasing rail pressure, i. constantly increasing system pressure also in this, by the

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Electromagnetism (AREA)
  • Fluid Mechanics (AREA)
  • Fuel-Injection Apparatus (AREA)
  • Magnetically Actuated Valves (AREA)

Abstract

L'invention concerne un injecteur de carburant (10) destiné à injecter du carburant dans la chambre de combustion d'un moteur à combustion interne comportant un actionneur électrique (28), en particulier un électro-aimant. L'actionneur (28) permet d'actionner un élément de fermeture (44) qui ouvre ou ferme une sortie (62) d'un espace de commande (60). Un élément d'ancrage (20) qui actionne l'élément de fermeture (44) présente des orifices (58, 94, 104) qui sont ouverts à la fermeture de l'élément de fermeture (44) et fermés à l'ouverture de l'élément de fermeture (44).
EP13714636.1A 2012-06-01 2013-04-04 Injecteur de carburant Not-in-force EP2855914B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102012209330A DE102012209330A1 (de) 2012-06-01 2012-06-01 Kraftstoffinjektor
PCT/EP2013/057067 WO2013178386A1 (fr) 2012-06-01 2013-04-04 Injecteur de carburant

Publications (2)

Publication Number Publication Date
EP2855914A1 true EP2855914A1 (fr) 2015-04-08
EP2855914B1 EP2855914B1 (fr) 2016-09-14

Family

ID=48050017

Family Applications (1)

Application Number Title Priority Date Filing Date
EP13714636.1A Not-in-force EP2855914B1 (fr) 2012-06-01 2013-04-04 Injecteur de carburant

Country Status (4)

Country Link
EP (1) EP2855914B1 (fr)
CN (1) CN104583575B (fr)
DE (1) DE102012209330A1 (fr)
WO (1) WO2013178386A1 (fr)

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WO2016206850A1 (fr) 2015-06-24 2016-12-29 Robert Bosch Gmbh Injecteur de carburant muni d'une soupape de commande

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Cited By (2)

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Publication number Priority date Publication date Assignee Title
WO2016206850A1 (fr) 2015-06-24 2016-12-29 Robert Bosch Gmbh Injecteur de carburant muni d'une soupape de commande
DE102015211705A1 (de) 2015-06-24 2016-12-29 Robert Bosch Gmbh Kraftstoffinjektor mit Steuerventil

Also Published As

Publication number Publication date
WO2013178386A1 (fr) 2013-12-05
EP2855914B1 (fr) 2016-09-14
CN104583575A (zh) 2015-04-29
CN104583575B (zh) 2017-10-31
DE102012209330A1 (de) 2013-12-05

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