EP3153697A1 - Agencement d'ensemble de soupape pour soupape d'injection et ladite soupape - Google Patents

Agencement d'ensemble de soupape pour soupape d'injection et ladite soupape Download PDF

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Publication number
EP3153697A1
EP3153697A1 EP15189051.4A EP15189051A EP3153697A1 EP 3153697 A1 EP3153697 A1 EP 3153697A1 EP 15189051 A EP15189051 A EP 15189051A EP 3153697 A1 EP3153697 A1 EP 3153697A1
Authority
EP
European Patent Office
Prior art keywords
valve assembly
valve
magnetic member
magnetic
needle
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.)
Withdrawn
Application number
EP15189051.4A
Other languages
German (de)
English (en)
Inventor
Mauro Grandi
Stefano Filippi
Francesco Lenzi
Valerio Polidori
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 EP15189051.4A priority Critical patent/EP3153697A1/fr
Publication of EP3153697A1 publication Critical patent/EP3153697A1/fr
Withdrawn legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M61/00—Fuel-injectors not provided for in groups F02M39/00 - F02M57/00 or F02M67/00
    • F02M61/16—Details not provided for in, or of interest apart from, the apparatus of groups F02M61/02 - F02M61/14
    • F02M61/20—Closing valves mechanically, e.g. arrangements of springs or weights or permanent magnets; Damping of valve lift
    • 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
    • F02M51/0603—Injectors peculiar thereto with means directly operating the valve needle using piezoelectric or magnetostrictive operating means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M51/00—Fuel-injection apparatus characterised by being operated electrically
    • F02M51/06—Injectors peculiar thereto with means directly operating the valve needle
    • F02M51/061—Injectors peculiar thereto with means directly operating the valve needle using electromagnetic operating means
    • F02M51/0625—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
    • F02M51/0682—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 the body being hollow and its interior communicating with the fuel flow
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M51/00—Fuel-injection apparatus characterised by being operated electrically
    • F02M51/06—Injectors peculiar thereto with means directly operating the valve needle
    • F02M51/061—Injectors peculiar thereto with means directly operating the valve needle using electromagnetic operating means
    • F02M51/0625—Injectors peculiar thereto with means directly operating the valve needle using electromagnetic operating means characterised by arrangement of mobile armatures
    • F02M51/0664—Injectors peculiar thereto with means directly operating the valve needle using electromagnetic operating means characterised by arrangement of mobile armatures having a cylindrically or partly cylindrically shaped armature, e.g. entering the winding; having a plate-shaped or undulated armature entering the winding
    • F02M51/0685—Injectors peculiar thereto with means directly operating the valve needle using electromagnetic operating means characterised by arrangement of mobile armatures having a cylindrically or partly cylindrically shaped armature, e.g. entering the winding; having a plate-shaped or undulated armature entering the winding the armature and the valve being allowed to move relatively to each other or not being attached to each other
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M61/00—Fuel-injectors not provided for in groups F02M39/00 - F02M57/00 or F02M67/00
    • F02M61/04—Fuel-injectors not provided for in groups F02M39/00 - F02M57/00 or F02M67/00 having valves, e.g. having a plurality of valves in series
    • F02M61/08—Fuel-injectors not provided for in groups F02M39/00 - F02M57/00 or F02M67/00 having valves, e.g. having a plurality of valves in series the valves opening in direction of fuel flow
    • 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
    • F02M63/0003—Fuel-injection apparatus having a cyclically-operated valve for connecting a pressure source, e.g. constant pressure pump or accumulator, to an injection valve held closed mechanically, e.g. by springs, and automatically opened by fuel pressure
    • F02M63/0007—Fuel-injection apparatus having a cyclically-operated valve for connecting a pressure source, e.g. constant pressure pump or accumulator, to an injection valve held closed mechanically, e.g. by springs, and automatically opened by fuel pressure using electrically actuated valves
    • 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
    • F02M2200/20—Fuel-injection apparatus with permanent magnets

Definitions

  • This invention relates to a valve assembly arrangement for an injection valve, the valve assembly arrangement having a central longitudinal axis and comprising a first valve assembly and a second valve assembly, wherein the second valve assembly is axially arranged adjacent to and coupled to the first valve assembly, wherein the valve assembly arrangement comprises a valve housing, wherein the second valve assembly comprises a valve housing section having an orifice at an axial end area of the valve housing, the second valve assembly comprises a cavity in its valve housing section and the second valve assembly comprises a valve needle being axially movable in said cavity between a closing position and other positions.
  • the invention also relates to an injection valve comprising a valve assembly arrangement.
  • Injection valves are in wide spread use, in particular for internal combustion engines where they may be arranged in order to dose a fluid into an intake manifold of the internal of the internal combustion engine or directly into a combustion chamber of a cylinder of an internal combustion engine. Injection valves are manufactured in various forms in order to satisfy the various needs for the various combustion engines. Injection valves may accommodate an actuator for actuating a needle of the injection valve, which way, for example, be an electromagnetic actuator or a piezoelectric actuator.
  • respective injection valves may be adapted to dose fluids under very high pressures.
  • valve assembly arrangements comprising a passive valve and active valve which is upstream to the passive one.
  • the passive valve is used to release fuel or gas (i.e. fluid) without being directly controlled but following to actuation of the upstream valve.
  • the upstream valve is an active valve, i.e. for example a valve enabling active control by an electromagnet or the like.
  • the passive valve is placed to protect an upstream valve to be exposed to difficult environmental conditions. The opening of the passive valve occurs when the upstream valve releases pressurized fuel or gas which by means of the pressure energy opens the passive valve.
  • Such a valve assembly arrangement is known from WO 2013/083626 A1 . It comprises a first active valve assembly including an actuator and a second passive valve assembly.
  • the closing function of the passive valve assembly is performed by a pre-compressed spring which keeps the passive valve normally closed.
  • an object of the invention to provide an improved valve assembly arrangement for an injection valve and to provide an injection valve comprising such improved valve assembly arrangement.
  • an object of the invention is that by such improvement the known disadvantageous limitations are removed as far as possible.
  • the present invention provides a generic valve assembly arrangement for an injection valve as mentioned at the beginning wherein the second valve assembly comprises a first magnetic member being fixed to the valve needle of the second valve assembly and wherein the second valve assembly comprises a second magnetic member being fixed to the valve housing section of the second valve assembly.
  • the invention suggests that at least one of the first magnetic member and the second magnetic member includes a permanent magnet or consists of a permanent magnet.
  • a closing force on the valve needle of the second valve assembly may be generated by the permanent magnet, in particular by attracting the first magnetic member towards the second magnetic member or vice versa.
  • the closing force on the valve needle is solely effected by the permanent magnet.
  • the second valve assembly is in particular operated without a spring acting on the valve needle of the second valve assembly for moving the valve needle to the closing position.
  • the second valve assembly is of the outward opening type and the first magnetic member is disposed at a side of the second magnetic member wherein said side is facing the axial end area.
  • the first magnetic member may be disposed at a space which is adjacent to the second magnetic member in an axial direction towards an axial end area of the valve assembly arrangement for dispensing the fluid.
  • the second valve assembly may be of the inward opening type and the second magnetic member may be disposed at a side of the first magnetic member wherein said side is facing the axial end area.
  • the invention solves the above mentioned problem by means of a closing force of the second valve assembly (i.e. of the passive valve) which is at the maximum value when the second valve assembly is closed. Compared thereto the closing force is reduced when the second valve assembly is in an open condition. This allows to keep the second valve assembly closed when it is not supplied by pressurized fuel or gas from the first valve assembly and it allows to let the second valve assembly open as long as possible before the closing function has to be performed.
  • a closing force of the second valve assembly i.e. of the passive valve
  • the closing spring is replaced in the passive valve assembly by a passive valve design closing mechanism including at least one permanent magnet.
  • the at least one permanent magnet is installed with the function to attract the valve needle of the second valve assembly to its closing position.
  • a permanent magnet for example can be placed on the moving part (in particular on the valve needle of the second valve assembly) or could be placed in a fixed position on the valve body or in particular on a section of a valve housing which belongs to the second valve assembly. In case enhanced performances are required it is possible to place two permanent magnets to support the closing function.
  • the opening principle of the valve assembly arrangement is that the first valve assembly, which may be a standard injector, opens under control of an electronic signal and that the second, i.e. passive, valve assembly opens due to the pressure of the fluid which is passing through the opened first valve assembly (i.e. a pressure of gas fuel) when the force resulting from the pressure exceeds the magnetic closing force.
  • the diagram shown by figure 4 of this application provides a force displacement comparison for exemplary chosen embodiments of valve assembly arrangements.
  • the ordinate represents the closing force in Newton and the abscissa shows a distance reduction to contact in millimeters wherein the starting point at 2 mm corresponds to "0 lift", i.e. a closed passive valve.
  • the graph sp 1 refers to a spring load of 5 N/mm (N) and the graph sp 2 refers to a spring load of 10/mm (N).
  • the symbol at P 1 indicates that a higher force is needed to keep the passive valve open.
  • Graph m 1 represents the closing force of an exemplary embodiment of an inventive second valve assembly comprising a single magnet (N).
  • Graph m 2 represents the closing force of an exemplary embodiment of an inventive second valve assembly comprising a standard force double magnet (N).
  • N standard force double magnet
  • the diagram shows that the permanent magnet closing design allows having a lower closing force when the valve needle is open. This technical feature allows increasing the passive valve pressure operative range with stable performances.
  • permanent-magnetic material refers to a magnetic material being permanently magnetized.
  • permanent magnet could be used in the application instead of the wording permanent-magnetic material.
  • the first magnetic member and the second magnetic member contact each other or are closely spaced when the valve needle of the second valve assembly is in its closing position, and that an increasing movement of the valve needle of the second valve assembly away from its closing position results in an increasing distance between the first magnetic member and the second magnetic member.
  • the closing force has its maximum in the closing condition.
  • the outward opening type means that the valve is opened when at the axial end area the tip of the valve needle moves in an outward direction, i.e. away from the valve housing.
  • inward opening type means that the valve is open by a movement of the valve needle directed inwardly to the valve housing.
  • the first magnetic member is a ring-like member being axially flipped on the valve needle of the second valve assembly.
  • the second magnetic member is a ringlike member, i.e. in particular a ring-shaped member, wherein the valve needle of the second valve assembly in particular is extending in the hole of the second magnetic member in a manner axially movable relative to the second magnetic member.
  • the first magnetic member comprises at least one axial throughout opening and/or that the second magnetic member comprises at least one axial throughout opening.
  • the invention suggests that at least one of the first magnetic member and the second magnetic member includes permanent-magnetic material or consists of permanent magnetic material.
  • the first magnetic member and/or the second magnetic member includes permanent-magnetic material or consists of permanent magnetic material.
  • the first magnetic member includes permanent-magnetic material or consists of permanent-magnetic material and that the second magnetic member includes ferromagnetic material or consists of ferromagnetic material.
  • said ferromagnetic material is not permanently magnetized itself and for example may have soft magnetic properties like for example steel.
  • the second magnetic member includes permanent-magnetic material or consists of permanent-magnetic material and that the first magnetic member includes ferromagnetic material or consists of ferromagnetic material.
  • said ferromagnetic material is not permanently magnetized itself and for example may have soft magnetic properties like for example steel.
  • the first magnetic member includes permanent-magnetic material or consists of permanent-magnetic material and that the second magnetic member includes permanent-magnetic material or consists of permanent-magnetic material.
  • valve housing comprises a step having a surface facing away from the axial end area and providing a stop for a stopper being connected to the valve needle of the second valve assembly.
  • the stopper is the first magnetic member or a member connected to the valve needle of the second valve assembly at a side of the first magnetic member wherein said side is facing the axial end area of the valve housing. This enables a limitation of the movement of the valve needle in an outward direction.
  • first magnetic member and the second magnetic member are positioned proximate to each other. This enables a strong magnetic force for closing the valve.
  • the second valve assembly is coupled to the first valve assembly in such a fashion that the first valve assembly is operable to inject fluid into the second valve assembly for increasing a fluid pressure in the second valve assembly to open the second valve assembly to enable dispensing of fluid from the valve assembly arrangement.
  • the first valve assembly may for example be a standard DI injector.
  • the first valve assembly is of the inward opening type and comprises:
  • the present invention also comprises an injection valve comprising a valve assembly arrangement wherein the valve assembly arrangement comprises one or more features explained above or in the following.
  • FIG. 1 With reference to Figures 1 , 1a and 1b it is described by way of example a first embodiment of an injection valve 1 according to the invention comprising a first preferred embodiment of a valve assembly arrangement 2 according to the present invention.
  • the valve assembly arrangement 2 extends along a central longitudinal axis L and comprises a first valve assembly 3 which is an active valve assembly and a second valve assembly 4 which is a passive valve assembly.
  • the valve assemblies 3, 4 are axially arranged adjacent to each other and coupled to each other.
  • the valve assembly arrangement 2 comprises a valve housing which in its entirety is designated by the reference number 5.
  • the exemplary shown injection valve 1 is in particular suitable for dosing a fluid, in particular for dosing fuel, to an internal combustion engine and comprises the valve assembly arrangement 2.
  • the first valve assembly 3 is of the inward opening type and the second valve assembly 4 is of the outward opening type.
  • the first valve assembly 3 of the inward opening type is basically constructed like the active valve assembly known from WO 2013/083626 A1 and, as described in this earlier application, is also similar to the injection valve described in EP 2 378 106 A1 .
  • the disclosure of WO 2013/083626 A1 regarding said valve assembly is herewith incorporated in the disclosure of the present application. Accordingly, hereinafter only those details of the first valve assembly 3 of the inward opening type are described, which directly act together with the second valve assembly 4 of the outward opening type during operation.
  • the first valve assembly 3 which is active operable and which is of the inward opening type comprises a valve housing section 6, i.e. a section of the valve housing 5, comprising a cavity 7 with a fluid inlet portion 8 and a fluid outlet portion 9.
  • a valve needle 10 of the first valve assembly 2 is axially movable in the cavity 7 so that it prevents a fluid flow through the fluid outlet portion 9 in a closing position and so that it releases a fluid flow through the fluid outlet portion 9 in other positions, i.e. in positions different from the closing position.
  • the first valve assembly 3 comprises an actuator unit 11 being adapted to actuate the valve needle 10.
  • the actuator unit 11 is an electro-magnetic actuator unit.
  • the actuator unit 11 may be of the solenoid type and may correspond to those shown in Figure 1 of WO 2013/083626 (i.e. it may include a coil which can be magnetized by applying an electrical current for attracting an armature of the first valve) or as shown in EP 2 378 106 A1 , or in another embodiment it may be of the piezo type.
  • the first valve assembly comprises a spring 12 for applying a force to the valve needle 10 towards its closing position.
  • the actuator unit 11 acts when being energized directly or indirectly on the valve needle 10 in an axial direction thus moving the first valve needle 10 out from its closing position into an opening position for injecting fuel. Moving the valve needle 10 into its closing position is established by means of said spring 12 shown in Fig. 1 , when the actuator unit 11 is de-energized.
  • respective gaps are schematically shown with exaggerated clearance for better clarity.
  • the injection nozzle may be, for example, an injection hole. However, it may also be of some other type suitable for dosing fluid.
  • FIG. 1 shows the injection valve 1 closed.
  • Fig. 1b shows a section of the injection valve 1 an opened state.
  • the second valve assembly 4 comprises a valve housing section 14 of housing 5 having an orifice 15 at an axial end area 16 of the valve housing 5.
  • the second valve assembly 4 comprises a cavity 17 and a valve needle 18 which is axially movable in the cavity 17 between a closing position and other positions.
  • the second valve assembly 4 comprises a sealing portion 19 at the axial end area 16.
  • the valve needle 18 is adapted for preventing a fluid flow along the sealing portion 19 in its closing position and is adapted for releasing a fluid flow along the sealing portion 19 in other positions.
  • the second valve assembly 4 comprises a first magnetic member 20 which is formed like a ring and which is axially slipped and axially fixed on the valve needle 18.
  • the term axially fixed means that the fixation can withstand axial forces which are typical for operation.
  • Member 20 may be fixed on valve needle 18 for example by welding, by using a press fit or an adhesive or the like.
  • the fixation is such that it can withstand axial forces.
  • the second valve assembly 4 comprises a second magnetic member 21 which is also formed like a ring and which is axially fixed to the valve housing section 14 of the second valve assembly 4.
  • the fixation may be for example achieved by welding, press fit, an adhesive or the like and is capable to withstand axial forces.
  • the valve needle 18 comprises an axial end 22 facing away from the axial end area 16 which extends in a hole 23 of the second magnetic member 21 in a manner axially movable relative to the second magnetic member 21 which may be achieved by an appropriate adaption of the diameters of the hole 23 and the end 22.
  • the first magnetic member 20 and the second magnetic member 21 respectively comprise throughout openings extending parallel to the longitudinal axis L for providing fluid paths.
  • the first magnetic member 20 consists of permanent-magnetic material, i.e. consists of a permanent magnet 26.
  • the second magnetic member 21 consists of ferromagnetic material.
  • the first magnetic member 20 is disposed at a side 27 of the second magnetic member 21 wherein said side 27 is facing the axial end area 16.
  • the first magnetic member 20 is disposed at a space which is adjacent to the second magnetic member 21 in a direction towards the axial end area 16.
  • Figures 1 and 1a show the injection valve in an operation condition when both the first valve assembly 3 and the second valve assembly 4 are closed.
  • the first magnetic member 20 has been attracted by the second magnetic member 21 due to the axial magnetic force and has been moved to the second magnetic member 21 until both members 20, 21 contact each other.
  • First magnetic member 20 is fixed at an axial position on the valve needle 18 so that in the state of contact between members 20, 21 the opposite end 28 of the valve needle 18 contacts the housing 5 at the axial end area 16 for sealing at the sealing portion 19. In this condition there is no gap between members 20, 21 and hence the magnetic attracting force between them is maximal.
  • some fuel gas, i.e. residual pressure is still within cavity 17 the closing function nevertheless is ensured by the magnetic closing design because during the closing movement of the valve needle 18 the magnetic attracting force between members 20 and 21 is increasing.
  • the valve housing section 14 provides a ring-shaped step 29 having a surface 30 extending perpendicularly to the longitudinal axis L and facing the first magnetic member 20.
  • the step 29 and its surface 30 provide an axial stop for the first magnetic member 20 in an axial direction towards the axial end area 16.
  • the first magnetic member 21 has also the function of an axial stopper which is connected to the valve needle 18. Throughout openings 24, 25 are provided for defining a fluid path.
  • FIG. 2 , 2a and 2b A second preferred embodiment of an injection valve 1 comprising a valve assembly arrangement 2 according to the invention is shown by Figures 2 , 2a and 2b .
  • a first magnetic member 20 is axially fixed at the valve needle 18 and a second magnetic member 21 is axially fixed at the valve housing section 14 of the second valve assembly 4.
  • the second magnetic member 21 consists of permanent-magnetic material, i.e. is a permanent magnet 26
  • the first magnetic member 20 consists of a ferromagnetic material, i.e. is a ferromagnet - like for example steel or the like. It is clear that the function of the second valve assembly 4 and of the complete injection valve 1 is the same as explained with regard to the first embodiment.
  • FIG. 3 is it shown a third preferred embodiment of an injection valve 1 comprising a valve assembly arrangement 2 according to the invention.
  • a ring-shaped first magnetic member 20 is axially fixed at the valve needle 18 and a ring-shaped second magnetic member 21 is axially fixed at the valve housing section 14 of the second valve assembly 4.
  • the axial magnetic orientation of members 20, 21 is such that they are attracted to each other by the magnetic forces.
  • an additional ring-shaped member 31 to cooperate as a stopper with the surface 30 of the step 29.
  • the member 31 is connected to the valve needle 18 at a side 32 of the first magnetic member 20 wherein said side 32 is facing the axial end area 16.
  • the first magnetic member 20 consists of permanent-magnetic material and also the second magnetic member 21 consists of permanent-magnetic material.
  • the axial magnetic polarization of members 20 and 21 is such that they are attracted to each other by the magnetic forces.
  • the magnetic closing function is however the same as explained with regard to the first and second embodiments.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Fuel-Injection Apparatus (AREA)
EP15189051.4A 2015-10-09 2015-10-09 Agencement d'ensemble de soupape pour soupape d'injection et ladite soupape Withdrawn EP3153697A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP15189051.4A EP3153697A1 (fr) 2015-10-09 2015-10-09 Agencement d'ensemble de soupape pour soupape d'injection et ladite soupape

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP15189051.4A EP3153697A1 (fr) 2015-10-09 2015-10-09 Agencement d'ensemble de soupape pour soupape d'injection et ladite soupape

Publications (1)

Publication Number Publication Date
EP3153697A1 true EP3153697A1 (fr) 2017-04-12

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Application Number Title Priority Date Filing Date
EP15189051.4A Withdrawn EP3153697A1 (fr) 2015-10-09 2015-10-09 Agencement d'ensemble de soupape pour soupape d'injection et ladite soupape

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EP (1) EP3153697A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3470657A1 (fr) 2017-10-10 2019-04-17 Continental Automotive GmbH Ensemble de soupape, agencement d'ensemble de soupape, soupape d'injection et procédé d'injection d'un fluide

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3139949A1 (de) * 1981-02-26 1983-04-28 Robert Bosch Gmbh, 7000 Stuttgart Kraftstoff-einspritzduese fuer brennkraftmaschinen
US4653720A (en) * 1985-03-02 1987-03-31 Robert Bosch Gmbh Electromagnetically actuatable fuel injection valve
JPH0199967U (fr) * 1987-12-25 1989-07-05
DE4023688A1 (de) * 1990-07-26 1992-01-30 Bosch Gmbh Robert Kraftstoffeinspritzduese
US5353991A (en) * 1989-06-21 1994-10-11 General Motors Corporation Solenoid actuated valve assembly
US5947091A (en) * 1995-11-14 1999-09-07 Robert Bosch Gmbh Fuel injection device for an internal combustion engine
JP2004316503A (ja) * 2003-04-15 2004-11-11 Mikuni Corp 電子制御燃料噴射装置及び燃料噴射制御方法
EP2378106A1 (fr) 2010-04-13 2011-10-19 Continental Automotive GmbH Ensemble de soupape pour soupape d'injection et soupape d'injection
WO2013083626A1 (fr) 2011-12-07 2013-06-13 Continental Automotive Gmbh Système d'ensembles soupape pour une soupape d'injection et soupape d'injection

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3139949A1 (de) * 1981-02-26 1983-04-28 Robert Bosch Gmbh, 7000 Stuttgart Kraftstoff-einspritzduese fuer brennkraftmaschinen
US4653720A (en) * 1985-03-02 1987-03-31 Robert Bosch Gmbh Electromagnetically actuatable fuel injection valve
JPH0199967U (fr) * 1987-12-25 1989-07-05
US5353991A (en) * 1989-06-21 1994-10-11 General Motors Corporation Solenoid actuated valve assembly
DE4023688A1 (de) * 1990-07-26 1992-01-30 Bosch Gmbh Robert Kraftstoffeinspritzduese
US5947091A (en) * 1995-11-14 1999-09-07 Robert Bosch Gmbh Fuel injection device for an internal combustion engine
JP2004316503A (ja) * 2003-04-15 2004-11-11 Mikuni Corp 電子制御燃料噴射装置及び燃料噴射制御方法
EP2378106A1 (fr) 2010-04-13 2011-10-19 Continental Automotive GmbH Ensemble de soupape pour soupape d'injection et soupape d'injection
WO2013083626A1 (fr) 2011-12-07 2013-06-13 Continental Automotive Gmbh Système d'ensembles soupape pour une soupape d'injection et soupape d'injection

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3470657A1 (fr) 2017-10-10 2019-04-17 Continental Automotive GmbH Ensemble de soupape, agencement d'ensemble de soupape, soupape d'injection et procédé d'injection d'un fluide

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