EP2302192A2 - Prise hydroélectrique pour groupe magnétique d'injecteur - Google Patents

Prise hydroélectrique pour groupe magnétique d'injecteur Download PDF

Info

Publication number
EP2302192A2
EP2302192A2 EP10171746A EP10171746A EP2302192A2 EP 2302192 A2 EP2302192 A2 EP 2302192A2 EP 10171746 A EP10171746 A EP 10171746A EP 10171746 A EP10171746 A EP 10171746A EP 2302192 A2 EP2302192 A2 EP 2302192A2
Authority
EP
European Patent Office
Prior art keywords
magnet
combi
plug
magnetic assembly
contact
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Withdrawn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
EP10171746A
Other languages
German (de)
English (en)
Other versions
EP2302192A3 (fr
Inventor
Ralf Maier
Ernst Hauk
Dieter Junger
Friedrich Howey
Dietrich Klauk
Stefan Ruedinger
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 EP2302192A2 publication Critical patent/EP2302192A2/fr
Publication of EP2302192A3 publication Critical patent/EP2302192A3/fr
Withdrawn legal-status Critical Current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
    • F02M51/005—Arrangement of electrical wires and connections, e.g. wire harness, sockets, plugs; Arrangement of electronic control circuits in or on fuel injection apparatus
    • 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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F7/00—Magnets
    • H01F7/06—Electromagnets; Actuators including electromagnets
    • H01F7/08—Electromagnets; Actuators including electromagnets with armatures
    • H01F7/127—Assembling

Definitions

  • Out DE 196 50 865 A1 is a solenoid valve used on a motor vehicle injection valve known.
  • the magnet holder of the solenoid valve is designed in several parts and has an armature disk and an anchor bolt, which is guided in a slider.
  • a damping device is provided on the armature. With such a damping device exactly the required short switching times of the solenoid valve can be maintained.
  • the solenoid valve according to DE 196 50 865 A1 is used in particular for use in injection systems with high-pressure accumulator (common rail). According to this solution, the magnetic sleeve surrounding the solenoid of the solenoid valve is fixed to the injector body of the fuel injector with a magnetic lock nut.
  • the adhesive seal is limited in durability at high pressures in the low pressure range and is not suitable for high temperature applications because it will degrade the viscosity of the adhesive and its sealing effect and also not for systems operating at very high system pressures.
  • the solution described above has the disadvantage that the sealing by adhesive is a limitation in terms of resilience.
  • a problem point is given by a weld between the holding plate and magnetic sleeve on which the weld is hardly manageable, since a hardened, large-volume plate made of carbon-rich material is very difficult without secure Welding process control.
  • this weld is a weak point in terms of tightness against leakage of fuel as well as a weak point in terms of mechanical strength resulting from the pressure oscillations within the magnet assembly.
  • a composite of several components material-rich magnetic group is relatively expensive.
  • magnet groups of the fuel injector can be provided with an encapsulation, which are interfaces to a fuel system. In this encapsulation electrical contact lugs are embedded.
  • drain port contains an interface for a hydraulic return. Both ports, i. Both the hydraulic and the electrical connection are contacted by the customer during assembly of the internal combustion engine with its own plug, which requires a locking element.
  • a combination plug which allows both an electrical contact and the hydraulic return contact in one and the same component.
  • the invention has for its object to provide a uniform magnetic group, waiving the previously existing variance, by the already described in connection with the prior art outlet angle for the plug, or for the plug types.
  • the interfaces ie the hydraulic interface and the electrical interface, be designed such that both interfaces lie on the upper side of the magnet assembly and the mounting direction for contacting the two interfaces is identical and is preferably oriented in the axial direction.
  • the magnet assembly proposed according to the invention requires no encapsulation and is much lower in terms of its height in the upper region of the fuel injector and smaller in relation to its radial extent.
  • only a common locking is to be provided, which locks both the hydraulic connection and the electrical connection in the upper region of the fuel injector.
  • a component, in particular the discharge nozzle, omitted since the return port for connecting the low-pressure side return of the fuel injection system is formed directly in the lid-shaped upper part of the magnet assembly.
  • a smaller radial extent of the inventively proposed magnetic assembly prior to assembly of the plug has the advantage that a fastener for fixing a clamping claw for mounting the fuel injector in the cylinder head is more easily accessible, or its position can be freely selected.
  • the clamping claw for fixing the fuel injector is mounted on the cylinder head of the internal combustion engine prior to assembly of the plug, so that a subsequent concealment of the Pratzenschraube by the present invention proposed plug is not a disadvantage.
  • a cover-shaped upper side is provided in the housing of the magnet assembly.
  • Run in the lid-shaped top passages for the coil contacts, which are usually realized as a coil pins and are sealed against fuel, including an O-ring is usually used.
  • the implementation of the fuel return is in this lid-shaped top of the magnet assembly.
  • the electrical interface is realized in such a way that a flat plug is mounted on the cover-shaped upper side of the housing above the fuel seal of the electrical contact formed as coil pins, in which the two electrical contacts designed as coil pins are received for the current flowing through the magnetic coil.
  • the tab comprises encapsulated metallic tabs, which are formed so that the coil pins for contacting the magnetic coil in the assembled state have mechanical contact with the tabs.
  • contact lugs and coil pins by a suitable process, such as laser welding or resistance welding, connected to cohesive ways with each other. This connection represents both the electrical contacting and the fixation of the magnetic coil of the magnet assembly.
  • a second end of the contact lugs is used for electrical contacting of the combi connector.
  • single cores with single core sealing and contacts are mounted in the plastic connector, which make electrical contact with the contact lugs during assembly of the combi connector on the magnet assembly.
  • the combination plug is secured, for example, by a spring element which engages in a groove of the housing of the magnet assembly against slipping out.
  • the electrical connection can also be replaced by round plug instead of a flat plug.
  • These are threaded directly onto the coil pins, ie the electrical contacts of the magnetic coil, so that the coil pins are accommodated in the inner bore.
  • the coil pin with the round plug at the top by means of laser welding, to name a suitable process, integrally connected.
  • the over-molded metallic contact lugs mentioned in the first embodiment of the electrical contact can be dispensed with.
  • the provided according to the further embodiment of compound provides both the electrical contact as well as the holding function of the solenoid within the magnet assembly safely.
  • the round connectors are used for electrical contact with the combi plug.
  • round contacts are mounted inside the combi plug. By an angled trained cable outlet the height of the combi plug is lower and the top of the combi plug can be ergonomically designed with a large mounting surface, making it relatively easy to handle.
  • the hydraulic connection in the combi plug can be mounted individually, ie after mounting the electrical connector connected to the cable harness.
  • vehicle manufacturers have the option of purchasing wiring harnesses and hydraulic return systems from various suppliers.
  • the representation according to FIG. 1 is a hydraulic and electrical contacting a magnetic assembly according to an embodiment of the prior art can be seen.
  • An in FIG. 1 The magnet assembly 14 shown comprises a coil core 12 and a coil 14 embedded in the coil core 12.
  • the coil core 12 and the magnetic coil 14 are surrounded by a magnetic sleeve 16 which is secured by a clamping nut 18 on an injector body of a fuel injector, not shown in the illustration.
  • a plug 20 is formed by a final plastic extrusion, in which a return port 22 are embedded and a laterally made electrical Gretechniksabgang 24 is molded.
  • the coil core 12 of the magnet assembly 10 is acted upon by a plate spring 26.
  • the plate spring 26 is supported on a plate 28, in which a channel 30 extends.
  • the channel 30 connects the recirculation connection 22, which has been let into the final injection 20, with the space above the spool core 12, so that the amount of leakage and control can be supplied to the return connection 22.
  • FIG. 2 shows a first embodiment of the inventively proposed combi plug for electrical and hydraulic contacting of the magnet assembly for actuating a fuel injector.
  • the magnet sleeve 16 according to FIG. 2 encloses analogously to the embodiment according to FIG. 1 the spool core 12, in which the magnetic coil 14 is inserted. Also in the in FIG. 2 illustrated embodiment, the bobbin 12 is biased by a plate spring 26 against projections on the inner circumference of the magnet sleeve, ie hired against the projections.
  • FIG. 2 shows that the magnet sleeve 16 has a lid-shaped planar top 40 formed. In contrast to the embodiment according to FIG.
  • nozzle 50 which is part of the housing 42 of the combi connector, in the cavity above the spool core 12 in the magnet sleeve 16.
  • a nozzle seal 56 is recessed in a circumferential groove.
  • An opening in the lid-shaped upper side 40 of the housing 42 of the combi plug is designated by reference numeral 62.
  • the opening 62 includes a Ein Industriesfase 58 and terminates in the lid-shaped upper surface 40 of the magnet sleeve 16 is substantially funnel-shaped.
  • FIG. 2 shows that the nozzle 50 forms a vertical channel 52, in a direction perpendicular to the plane according to FIG. 2 extending horizontal channel 54 opens.
  • FIG. 2 shows that on the lid-shaped top 40 of the magnet sleeve 16 is a tab 66.
  • the magnet sleeve 16 according to the sectional view in FIG. 2 a circumferential groove 48 in which the combination plug 42 can be latched.
  • a locking of the combi-connector 42, ie a verlierfeste fuse thereof in a magnet sleeve 16 in the circulation groove 48, means that by one and the same locking both the hydraulic contact via the nozzle 50 and the electrical contacting of the coil pins 46 with the tab 66th can be realized, so that the customer saves a backup option.
  • the combination plug 42 on the cover-side top 40 facing side includes a cavity which substantially receives the electrical contact between the tab 66 and the contact pins 46 of the magnetic coil 14.
  • the nozzle 50 is positioned eccentrically extending on the inside of the combi-connector 42, so that the mouth of the nozzle 50, ie the mouth of the vertical channel 52, laterally above the spool core 12 into the cavity of the magnet sleeve 16 opens.
  • FIG. 3 shows the first embodiment of the inventively proposed combi plug in a compared to FIG. 2 rotated by 90 ° sectional view.
  • the combi plug 42 has plug outlets 64, which essentially form the horizontal channel 54 and can accommodate the hoses of the return system in the vehicle. From the illustration according to FIG. 3 goes further, that is located on the lid-shaped top 40 of the magnet sleeve 16 of the tab 66.
  • the tab 66 includes tabs, which in the illustration according to FIG. 3 not shown, the contact pins 46, which extend to the electrically to be contacted magnetic coil 14, electrically contact.
  • On the underside of the tab 66 are funnel-shaped dome-shaped elevations whose geometry is formed corresponding to the Ein Industriesfasen on the lid-shaped top 40 of the magnet sleeve 16.
  • the sealing rings are identified by reference numeral 60 and are fixed in the mounted state of the tab 66 by its formed on the underside dome-shaped elevations in the contact bushings 44 in the lid-shaped top 40 of the magnet sleeve 16.
  • FIG. 4 is a section through the first embodiment of the in FIG. 2 and FIG. 3 to be taken from the illustrated combi plug.
  • FIG. 4 shows that in the material of the combi plug 42 individual wires 70 are embedded.
  • the individual cores 70 have spring-loaded contact terminals 74, with which contact lugs 68 can be contacted on the upper side of the tab 66 as soon as the combination connector 42 is mounted on the cover-shaped top 40, for example in the axial direction.
  • the contact terminals 74 are pushed onto the contact lugs 68 and thereby electrically connected to the over the flat part of the tab 66 protruding contact pins 46 for energizing the solenoid 14.
  • the contact pins 46 are connected by a cohesive connection with the contact lugs 68.
  • FIG. 2 When mounted in the axial direction of the combi-connector 42 as shown in FIG. 4 will the in FIG. 2 illustrated eccentrically formed on the underside of the combi-connector 42 formed in the interior nozzle 50 in which also formed on the lid-shaped top 40 opening 62.
  • FIG. 2 In the sectional view according to FIG. 4 is the in FIG. 2 shown nozzle 50 can not be seen, since this in the rear region of the combi-connector 42 as shown in FIG. 4 lies.
  • the plate spring 26 In the cavity between the upper end face of the spool core 12 and the lid-shaped top 40 is the plate spring 26, with which the spool core 12 is made on formed on the inner circumference of the magnet sleeve projections.
  • FIG. 5 From the perspective view according to FIG. 5 shows that on the lid-shaped top 40 of the magnet sleeve 16 of the tab 66 is located.
  • This has contact lugs 68 which extend on the one hand in addition to the pushed through the contact bushings 44 pins 46 substantially in the vertical direction and on the other hand contact lugs 68 which contacted during assembly of the inventively proposed combi connector 42 through the contact terminals 54 at the end of the individual wires become.
  • the geometry of the tab 66 is formed such that it surrounds the return opening 62 provided with the Ein Industriesfase 58 in the radial direction, without covering it.
  • FIG. 6 From the illustration according to FIG. 6 is a sectional view of a partially broken illustrated inventively proposed combi plug in more detail.
  • FIG. 6 shows that the contact pins 46, which are used for the electrical contacting of the magnetic coil 14, of the in connection in FIG. 6 already mentioned round pin terminals 90 are covered. Due to the round pin terminals 90, the contact pins 46 are enlarged in terms of their diameter, so that they are easier electrically contacted by appropriately sized round contacts 94. The contact pins 46 are integrally connected at their upper end with the Rundpin-terminals 90 to represent an electrical connection. As FIG. 6 shows electrical lines 98 have a crimp connection 100, with which the annular trained round contacts 94 with the electrical wires 98 in the region of the cable outlet 96 of the combi plug 52 as shown in FIG FIG. 6 are connected. FIG.
  • the round contacts 94 are formed substantially complementary to the geometry of the Rundpin-terminals 90, which are pushed onto the contact pins 46.
  • the round contacts 94 according to the perspective reproduction in FIG. 7 have a sleeve-shaped region which extends between two annular end faces of the circular contacts 94 areally.
  • combination plug 42 in the axial direction, that is pushed toward the stop 92 on the lid-shaped top 40 on the magnet sleeve 16, so the nozzle 50, where the neck seal 56 is received, in the opening 62, and on the other hand push
  • the circular contacts 54 injected into the material of the combi plug 42 impact the round pin terminals 90.
  • the stop surface 92 accommodates the round pin terminals 90 and forms electrical insulation between the round pin terminals 90 and the magnet sleeve 60.
  • the cable outlet 96 is formed angled, the mounting direction for pushing the round contacts 94 on the Rundpin-connections 90 and the insertion direction of the nozzle 50 in the return opening 62 on the lid-shaped top 40 of the magnetic sleeve 16 is identical. This means that they are produced at the interfaces of the magnet group 10 at the same time hydraulically and electrically in a single operation in an identical mounting direction when sliding the combi-connector 42.
  • FIG. 7 is a plan view of the embedded in the material of the combi-connector 42 round contacts 94 refer.
  • the electrical lines 58 are preferably provided with the round contacts 94 via a crimped connection 100.
  • the ring-shaped round contacts 94 in the illustration according to FIG. 6 are shown from the side extend perpendicular to the plane according to FIG. 7 , This means that in the illustration according to FIG. 7 only the upper ring of the round contacts 94 can be seen, while the sleeve-shaped lateral surface and the underlying ring in the plane according to FIG. 7 are located.
  • the crimps 100 are in the combi plug 42 recorded with radial play, so that vibrations of the combi-connector 42, for example, caused by the oscillating mass of the return line, not to the electrical contact 94 are transmitted.
  • the overall height of the combi plug 42 is significantly lower and the top of the combi plug can be ergonomically designed with a large mounting surface, so that it is easier to handle.
  • the round contacts 94 are mounted in the combination plug 42 and held with snap hooks against slipping out.
  • the snap hooks allow a provision of radial play in the round contacts 94, secure against slipping out of the round contacts 94 from the combi plug 42.
  • both variants of the proposed solution have in common that the combination plug 42 proposed according to the invention can be locked in a circumferential groove 48 extending below the lid-shaped upper side 40, for which purpose in particular a spring element or a clip closure is suitable.
  • FIG. 8 shows a section through the combi plug.
  • the representation according to FIG. 9 is a 90 ° in relation to the cutting in FIG. 8 twisted sectional view through the combi plug to remove.
  • FIG. 9 shows that the contact pins 46 are surrounded by Rundpin-terminals 90, which in turn are contacted by the round contacts 94.
  • a sealing of the contact pins 46 is carried out below the Rundpin-terminals 90 by sealing rings 60, which seal the contact pins 46 with respect to the magnetic sleeve 16.
  • FIG. 9 shows that according to this sectional view, the horizontal channel 54 lying in the plane of the combi plug 42 and in the housing, wherein the horizontal channel 54 side chamfered outlets 64 are listed.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Electromagnetism (AREA)
  • Power Engineering (AREA)
  • Fluid Mechanics (AREA)
  • Fuel-Injection Apparatus (AREA)
  • Connector Housings Or Holding Contact Members (AREA)
EP10171746A 2009-09-28 2010-08-03 Prise hydroélectrique pour groupe magnétique d'injecteur Withdrawn EP2302192A3 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE200910045048 DE102009045048A1 (de) 2009-09-28 2009-09-28 Hydraulik-Elektrik-Stecker für Injektor-Magnetgruppe

Publications (2)

Publication Number Publication Date
EP2302192A2 true EP2302192A2 (fr) 2011-03-30
EP2302192A3 EP2302192A3 (fr) 2012-06-20

Family

ID=43434397

Family Applications (1)

Application Number Title Priority Date Filing Date
EP10171746A Withdrawn EP2302192A3 (fr) 2009-09-28 2010-08-03 Prise hydroélectrique pour groupe magnétique d'injecteur

Country Status (2)

Country Link
EP (1) EP2302192A3 (fr)
DE (1) DE102009045048A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102017124287A1 (de) * 2017-10-18 2019-04-18 Schaeffler Technologies AG & Co. KG Elektromagnetische Stellvorrichtung

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2108767A (en) * 1981-11-05 1983-05-18 Bosch Gmbh Robert Electromagnetically actuable valve
DE19647586A1 (de) * 1996-11-18 1998-05-20 Bosch Gmbh Robert Verteilereinrichtung für Brennstoffeinspritzanlagen
DE19650865A1 (de) 1996-12-07 1998-06-10 Bosch Gmbh Robert Magnetventil
DE19717459A1 (de) * 1997-04-25 1998-11-12 Bosch Gmbh Robert Vorrichtung zum dosierten Einspritzen von Kraftstoff in einen Verbrennungsmotor
DE102007026488A1 (de) 2007-06-05 2008-12-11 Robert Bosch Gmbh Magnetventilkopf eines Magnetventils

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5598824A (en) * 1996-04-15 1997-02-04 Ford Motor Company Fuel delivery system for an internal combustion engine
DE19757347A1 (de) * 1996-12-24 1998-06-25 Toyota Motor Co Ltd Kraftstoffeinspritzvorrichtung
DE10025043A1 (de) * 2000-05-20 2001-11-22 Bosch Gmbh Robert Kraftstoffrücklaufeinrichtung
DE102007009963A1 (de) * 2007-03-01 2008-09-04 Robert Bosch Gmbh Magnetkopf für Magnetventil

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2108767A (en) * 1981-11-05 1983-05-18 Bosch Gmbh Robert Electromagnetically actuable valve
DE19647586A1 (de) * 1996-11-18 1998-05-20 Bosch Gmbh Robert Verteilereinrichtung für Brennstoffeinspritzanlagen
DE19650865A1 (de) 1996-12-07 1998-06-10 Bosch Gmbh Robert Magnetventil
DE19717459A1 (de) * 1997-04-25 1998-11-12 Bosch Gmbh Robert Vorrichtung zum dosierten Einspritzen von Kraftstoff in einen Verbrennungsmotor
DE102007026488A1 (de) 2007-06-05 2008-12-11 Robert Bosch Gmbh Magnetventilkopf eines Magnetventils

Also Published As

Publication number Publication date
EP2302192A3 (fr) 2012-06-20
DE102009045048A1 (de) 2011-03-31

Similar Documents

Publication Publication Date Title
DE19921539B4 (de) Stecker für eine Kraftstoffpumpe eines Kraftfahrzeuges
EP1825135B1 (fr) Injecteur
EP2593658B1 (fr) Injecteur de carburant présentant un nombre réduit de pièces
DE102007009963A1 (de) Magnetkopf für Magnetventil
EP2396536B1 (fr) Soupape d'injection
EP2252786B1 (fr) Traversée électrique étanchéifiée
EP2383459B1 (fr) Dispositif de fixation d'un connecteur
EP0906632A1 (fr) Bobine magnetique
EP2302192A2 (fr) Prise hydroélectrique pour groupe magnétique d'injecteur
DE19717459C2 (de) Vorrichtung zum dosierten Einspritzen von Kraftstoff in einen Verbrennungsmotor
WO2004047191A2 (fr) Metallisation d'actionneur piezo-electrique destinee a une soupape d'injection et procede de fabrication
DE102007000358A1 (de) Einspritzeinrichtung
DE10206908B4 (de) Injektor mit verbesserter Anschlussgeometrie
EP2253830B1 (fr) Groupe d'aimants à baïonnette
EP2299101B1 (fr) Soupape magnétique dotée d'une unité de commande contactée directement
DE102012209421A1 (de) Vorrichtung zum Zumessen von Kraftstoff
EP1831538B1 (fr) Systeme d'injection de carburant pour moteur a combustion interne
DE10103932B4 (de) Brennstoffeinspritzventil
DE102008055119A1 (de) Piezoinjektor
EP2414663B1 (fr) Dispositif d'injection de carburant
WO2010102849A1 (fr) Soupape d'injection de combustible
DE102013224770A1 (de) Kraftstoffinjektor
DE102012206240A1 (de) Ventil zum Zumessen von Fluid
DE102010005064A1 (de) Zylinderkopf für eine Brennkraftmaschine

Legal Events

Date Code Title Description
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

AK Designated contracting states

Kind code of ref document: A2

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 SE SI SK SM TR

AX Request for extension of the european patent

Extension state: BA ME RS

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

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 SE SI SK SM TR

AX Request for extension of the european patent

Extension state: BA ME RS

RIC1 Information provided on ipc code assigned before grant

Ipc: H01F 7/08 20060101ALI20120514BHEP

Ipc: F02M 51/00 20060101AFI20120514BHEP

Ipc: F02M 47/02 20060101ALI20120514BHEP

17P Request for examination filed

Effective date: 20121220

17Q First examination report despatched

Effective date: 20160317

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

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 20181009