WO2013156179A1 - Ensemble magnétique, destiné notamment à une électrovanne d'injecteur de carburant - Google Patents

Ensemble magnétique, destiné notamment à une électrovanne d'injecteur de carburant Download PDF

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Publication number
WO2013156179A1
WO2013156179A1 PCT/EP2013/053344 EP2013053344W WO2013156179A1 WO 2013156179 A1 WO2013156179 A1 WO 2013156179A1 EP 2013053344 W EP2013053344 W EP 2013053344W WO 2013156179 A1 WO2013156179 A1 WO 2013156179A1
Authority
WO
WIPO (PCT)
Prior art keywords
clamping ring
air gap
residual air
clamping
magnet assembly
Prior art date
Application number
PCT/EP2013/053344
Other languages
German (de)
English (en)
Inventor
Thomas Nierychlo
Marco Beier
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
Priority to EP13706474.7A priority Critical patent/EP2839143B1/fr
Publication of WO2013156179A1 publication Critical patent/WO2013156179A1/fr

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
    • 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
    • F02M63/0019—Valves characterised by the valve actuating means electrical, e.g. using solenoid using electromagnetic operating means characterised by the arrangement of electromagnets or fixed armatures
    • 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
    • F02M63/007—Details not provided for in, or of interest apart from, the apparatus of the groups F02M63/0014 - F02M63/0059
    • F02M63/0075—Stop members in valves, e.g. plates or disks limiting the movement of armature, valve or spring
    • 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
    • F02M2200/26—Fuel-injection apparatus with elastically deformable elements other than coil springs

Definitions

  • Magnetic assembly in particular for a solenoid valve of a fuel injector prior art
  • the invention relates to a magnet assembly, in particular for a solenoid valve of a fuel injector according to the preamble of claim 1.
  • Common rail injectors use so-called servo valves, which control the pressure in a control room.
  • As an actuator for such servo valves u. a. Magnetic actuators used.
  • Such magnetic actuators have a magnet assembly with a magnetic core and a magnet armature, wherein a so-called residual air gap disk is used to set a minimum residual air gap between an armature surface and a pole face.
  • the residual air gap disk can be arranged above the inner pole or outer pole of the magnetic core.
  • the clamping ring presses the residual air gap disc on the Jardinpol nature.
  • An appropriate non-positive connection between the armature plate side end of the magnetic core and the residual air gap disc is achieved by a clamping ring receptacle is provided with a counter surface in which the clamping ring is received, wherein the clamping ring is supported with a radial clamping force on the counter surface and by means of a counter surface derived resulting resilience against the
  • the clamping ring receptacle with the mating surface is expediently formed on an overlap arranged on a magnet sleeve, which holds the
  • Ankerplatten solution canen end side of the magnetic core radially overlaps, so that the mating surface is at an axial distance radially below the residual air gap disc.
  • the clamping ring may have a round cross section or a cross section with at least one conical support surface.
  • the counter surface for supporting the clamping ring is a bevel, which generates the resulting clamping force in the direction of the residual air gap disc, or the counter surface for supporting the clamping ring is one at a gap
  • the support surface is formed on the outer circumference of the clamping ring, with the clamping ring is supported on a complementary conical surface as a counter surface.
  • Fig. 1 shows a cross section through a solenoid valve with an inventive
  • Fig. 2 is an enlarged detail X of Fig. 1 according to a first
  • Fig. 3 is an enlarged detail X of Fig. 1 according to a second
  • Fig. 4 is an enlarged detail X of Fig. 1 according to a third
  • Fig. 5 is a plan view of a clamping ring.
  • Valve element 10 and a magnet assembly 20 which are arranged in an injector body 11.
  • the valve element 10 comprises a closing element 12, which acts on a valve seat 13.
  • By means of the closing element 12 is a
  • Control chamber 15 connected to the control of a nozzle needle, not shown, connected to a low-pressure chamber 16 or closed.
  • the magnet assembly 20 includes a magnetic core 21 and a magnet armature 22.
  • the magnet core 21 has an armature plate side end face 23 which forms a pole face.
  • a magnetic coil 26 is inserted, so that the magnetic core 21, an inner pole 24 and an outer pole 25 is formed.
  • an inner pole face 24a is thus formed at the inner pole 24, and an outer pole face 25a is formed at the outer pole 25.
  • the magnetic core 21 is received in a magnet sleeve 28 which is clamped by means of a clamping sleeve 27 with the injector body 10.
  • the magnetic core 21 rests with its armature plate-like end face 23 on an annular surface 29 formed on the magnet sleeve 28.
  • the armature 22 has an anchor plate 31 with an outer diameter and an anchor sleeve 33, wherein the anchor sleeve 33 at the same time
  • Closing element 12 forms.
  • the outer diameter defines an armature surface 32 on the armature plate 31.
  • the armature sleeve 33 is guided on its outer circumferential surface in a valve piece 34 formed on the injector body 10.
  • Residual air gap disc 40 is arranged, which is designed as a circular ring and thus represents an outer residual air gap disc.
  • the residual air gap disk 40 has a clamping-ring-side end face 41 and a magnet core-side end face 42 and is held on the armature-plate-side end face 23 of the magnetic core 21 in the region of the outer pole face 25a by means of a clamping connection 50.
  • the clamp connection 50 has a clamping ring holder 51 with a
  • the clamping ring 60 has a radial clamping force with which the clamping ring 60 at the in the
  • Clamping ring 51 trained counter surface 52 is supported. Due to the position of the mating surface 52, which has inclined to the residual air gap disk 40, on the mating surface 52 from the radial clamping force of the clamping ring 60 a
  • the clamping ring 60 realizes with the resulting clamping force the required clamping force for the clamping connection 50, with which the residual gap plate 40 with the magnetic core side end 42 is held frictionally on the armature plate side end face 23 of the magnetic core 21. To apply the necessary bias when inserting the clamping ring 60 in the
  • Clamping ring 51 the clamping ring 60 according to Figure 5 has a slot 61.
  • an overlap 53 is formed on the magnet sleeve 28, axially below the annular surface 29, which overlaps the
  • the clamping ring 60 has a round cross-section.
  • the counter surface 52 is in the embodiment of Figure 2 is a slope on which the clamping ring 60 acts with its radial clamping force and a corresponding resulting clamping force in the direction of the residual air gap disc 60 dissipates, with the clamping ring 60 against the
  • the clamping ring receptacle 51 has a mating surface 52 with a curved course. Due to the curve shape, the clamping force of the clamping ring 60 can be adjusted over itself
  • Diameter of the clamping ring 60 can be varied. Again, the clamping ring 60 presses with the resulting clamping force against the clamping ring-side end face 41 of the residual air gap disc 40th
  • the counter surface for supporting the clamping ring 60 is formed on a gap clamping surface, wherein the clamping ring 60 wedged due to its radial clamping force in the gap between the clamping surface and the residual air gap disk 40 and the resulting clamping force against the residual air gap disk 40th suppressed.
  • the clamping ring 60 has a conical support surface 54 at least on the outer peripheral surface.
  • the counter-surface 52 for the support surface 54 is a complementary conical surface on the clamping ring 51 and the overlap 53. Due to the radial clamping force of the clamping ring 60 and the mutually acting conical surfaces creates a resulting clamping force, the clamping ring 60 against the clamping ring side end 41st the residual air gap disk 40 presses.

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)

Abstract

L'invention concerne un ensemble magnétique, destiné notamment à une électrovanne d'injecteur de carburant, comprenant un noyau magnétique (21) et une armature (22). Sur une face frontale (23) côté armature, le noyau magnétique (21) présente une surface polaire interne (24a) et une surface polaire externe (25a). Entre le noyau magnétique (21) et l'armature (22) est disposée une rondelle d'entrefer résiduel (40) qui est maintenue sur la face frontale (23) côté armature du noyau magnétique (21) au moyen d'un dispositif de serrage (50). Le dispositif de serrage (50) présente un anneau élastique (60) qui comprime la rondelle d'entrefer résiduel (40) sur la face frontale (23) côté armature du noyau magnétique (21).
PCT/EP2013/053344 2012-04-16 2013-02-20 Ensemble magnétique, destiné notamment à une électrovanne d'injecteur de carburant WO2013156179A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP13706474.7A EP2839143B1 (fr) 2012-04-16 2013-02-20 Ensemble magnétique, destiné notamment à une électrovanne d'injecteur de carburant

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102012206215A DE102012206215A1 (de) 2012-04-16 2012-04-16 Magnetbaugruppe, insbesondere für ein Magnetventil eines Kraftstoffinjektors
DE102012206215.7 2012-04-16

Publications (1)

Publication Number Publication Date
WO2013156179A1 true WO2013156179A1 (fr) 2013-10-24

Family

ID=47754466

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2013/053344 WO2013156179A1 (fr) 2012-04-16 2013-02-20 Ensemble magnétique, destiné notamment à une électrovanne d'injecteur de carburant

Country Status (3)

Country Link
EP (1) EP2839143B1 (fr)
DE (1) DE102012206215A1 (fr)
WO (1) WO2013156179A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014206872A1 (fr) * 2013-06-27 2014-12-31 Robert Bosch Gmbh Module magnétique pour un injecteur de carburant
CN114458503A (zh) * 2022-03-09 2022-05-10 哈尔滨工程大学 一种多永磁-电磁耦合磁路的高响应高速电磁阀

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102014216352A1 (de) * 2014-08-18 2016-02-18 Robert Bosch Gmbh Magnetventil
DE102015213739A1 (de) 2015-07-21 2017-01-26 Robert Bosch Gmbh Kraftstoffinjektor und Verfahren zur Herstellung eines Kraftstoffinjektors
DE102016221931A1 (de) 2016-11-09 2018-05-09 Robert Bosch Gmbh Magnetbaugruppe und Kraftstoffinjektor mit einer Magnetbaugruppe

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2065833A (en) * 1979-12-05 1981-07-01 Bosch Gmbh Robert Electromagnetically actuable valve
US6161783A (en) * 1999-09-17 2000-12-19 Impco Technologies, Inc. Gaseous fuel injector
EP1219813A2 (fr) * 2000-12-29 2002-07-03 C.R.F. Società Consortile per Azioni Injecteur de carburant pour moteur à combustion interne
EP1231378A2 (fr) * 2001-02-12 2002-08-14 Delphi Technologies, Inc. Injecteur de carburant électromagnétique avec un élément flexible pour le positionnement de l'armature
DE102009001706A1 (de) 2009-03-20 2010-09-23 Robert Bosch Gmbh Restluftspaltscheibe

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2065833A (en) * 1979-12-05 1981-07-01 Bosch Gmbh Robert Electromagnetically actuable valve
US6161783A (en) * 1999-09-17 2000-12-19 Impco Technologies, Inc. Gaseous fuel injector
EP1219813A2 (fr) * 2000-12-29 2002-07-03 C.R.F. Società Consortile per Azioni Injecteur de carburant pour moteur à combustion interne
EP1231378A2 (fr) * 2001-02-12 2002-08-14 Delphi Technologies, Inc. Injecteur de carburant électromagnétique avec un élément flexible pour le positionnement de l'armature
DE102009001706A1 (de) 2009-03-20 2010-09-23 Robert Bosch Gmbh Restluftspaltscheibe

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014206872A1 (fr) * 2013-06-27 2014-12-31 Robert Bosch Gmbh Module magnétique pour un injecteur de carburant
CN114458503A (zh) * 2022-03-09 2022-05-10 哈尔滨工程大学 一种多永磁-电磁耦合磁路的高响应高速电磁阀
CN114458503B (zh) * 2022-03-09 2022-09-02 哈尔滨工程大学 一种多永磁-电磁耦合磁路的高响应高速电磁阀

Also Published As

Publication number Publication date
EP2839143A1 (fr) 2015-02-25
EP2839143B1 (fr) 2018-08-01
DE102012206215A1 (de) 2013-10-17

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