EP0925441B1 - Soupape a commande electromagnetique - Google Patents

Soupape a commande electromagnetique Download PDF

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Publication number
EP0925441B1
EP0925441B1 EP98928077A EP98928077A EP0925441B1 EP 0925441 B1 EP0925441 B1 EP 0925441B1 EP 98928077 A EP98928077 A EP 98928077A EP 98928077 A EP98928077 A EP 98928077A EP 0925441 B1 EP0925441 B1 EP 0925441B1
Authority
EP
European Patent Office
Prior art keywords
valve
connecting part
closing body
valve according
slots
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.)
Expired - Lifetime
Application number
EP98928077A
Other languages
German (de)
English (en)
Other versions
EP0925441A1 (fr
Inventor
Ferdinand Reiter
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 EP0925441A1 publication Critical patent/EP0925441A1/fr
Application granted granted Critical
Publication of EP0925441B1 publication Critical patent/EP0925441B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • F02M61/168—Assembling; Disassembling; Manufacturing; Adjusting
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49405—Valve or choke making
    • Y10T29/49412—Valve or choke making with assembly, disassembly or composite article making
    • Y10T29/49416—Valve or choke making with assembly, disassembly or composite article making with material shaping or cutting
    • Y10T29/49423—Valve or choke making with assembly, disassembly or composite article making with material shaping or cutting including metal deforming

Definitions

  • the invention is based on an electromagnetic actuatable valve according to the preamble of the main claim.
  • Out DE-PS 38 31 196 is already an electromagnetic actuatable valve known, the one in a Through hole of a valve seat carrier axially movable Has valve needle.
  • the valve needle is from one cylindrical armature, a spherical valve closing body and a pipe or pipe connecting both components sleeve-shaped connecting part formed.
  • the connecting part is made from a flat sheet of metal that subsequently rolled or bent until there is a cylindrical, sleeve-like shape. In this form the connecting part has one over its entire length axial length extending slot on either run parallel to the axis or at an angle to the longitudinal axis of the valve can.
  • the two end faces running in the longitudinal direction the metal sheets used are between the slot forming at a constant distance from each other.
  • From DE-OS 40 08 675 is already an electromagnetic actuated valve known in which the valve closing body is attached to the connecting part with a weld seam, the weld seam at least in the area of Longitudinal slot or additionally in other places in Circumferential direction is interrupted.
  • the electromagnetically actuated valve according to the invention with the characteristic features of the main claim has the Advantage that it is particularly simple is inexpensive to manufacture.
  • the advantage is there a connecting part with relatively large tolerances. at it has low weight and great stability Connection part a large-area hydraulic Flow cross section. As a result of being over a large That is part of the axial length extending slots Connection part to one end resiliently, whereby the connection with the anchor is facilitated.
  • the connecting part is resilient its two half-shells under tension in the inner Opening of the anchor can be inserted, so that a disadvantageous Chip formation during anchor assembly is avoided.
  • the valve closing body can be unslotted End of the connecting part fastened very easily and securely without having to bridge slots.
  • the slots made of a non-magnetic material Avoid an unwanted connector Eddy current formation.
  • Valve closing body for example spherical is formed at the unslit, non-resilient end of the connecting part by a 360 ° complete circumferential weld seam achievable due to its complete plant a very high dynamic strength has.
  • the advantage here is the simple and safe Manageability of the components when applying the weld seam, which have no interruptions due to the rotating end of the Has connecting part and thus runs very homogeneously.
  • FIG. 1 shows it partially shown electromagnetically actuated Valve
  • Figure 2 shows a connecting part of an axially movable Valve needle as a single component
  • Figure 3 is a plan view of the connecting part according to Figure 2 and Figure 4 a Sheet metal section for forming a connecting part.
  • FIG. 1 is an embodiment Electromagnetically actuated valve in the form of a Injector for fuel injection systems from mixture-compression-ignition internal combustion engines partially shown.
  • the valve has a tubular one Valve seat support 1, in the concentric to one Longitudinal valve axis 2, a longitudinal bore 3 is formed.
  • a longitudinal bore 3 is formed in the longitudinal bore 3 in the longitudinal bore 3 in the longitudinal bore 3 in the longitudinal bore 3 in the longitudinal bore 3 axially movable valve needle 6 arranged.
  • the valve is actuated electromagnetically in known way.
  • the valve needle 6 is from the armature 12, one for example spherical valve closing body 13 and a connecting part connecting the two individual parts 14 formed, wherein the connecting part 14 is a tubular Has shape.
  • the return spring 8 is supported its lower end on the upper face of the Connection part 14 from.
  • the anchor 12 is with the Valve closing body 13 facing away from the end Connecting part 14 connected by a weld 15 and aligned with the core 11.
  • the magnet coil 10 surrounds the core 11, which is the solenoid 10th enclosing end of an unspecified Fuel inlet connector, which is the supply of the by means of Valve to be measured medium, here fuel, is used represents.
  • valve seat carrier 1 With the lower end of the core 11 and with the Valve seat carrier 1 is concentric with the valve longitudinal axis 2 tightly a tubular, metallic intermediate part 19 connected for example by welding.
  • Valve longitudinal axis 2 In the downstream end of the core 11 facing away from the core Valve seat support 1 is concentric with Valve longitudinal axis 2 extending longitudinal bore 3 cylindrical valve seat body 25 tight by welding assembled.
  • the valve seat body 25 has the core 11 facing a fixed valve seat 26.
  • the solenoid 10 is of at least one, for example trained as a bracket, as a ferromagnetic element serving guide element 30 in the circumferential direction at least partially surrounded, with one end to the core 11 and with its other end on the valve seat support 1 is applied and with these e.g. by welding, soldering or an adhesive connection is connected.
  • valve seat body 25 To guide the valve closing body 13 during the Axial movement serves a guide opening 31 of the Valve seat body 25.
  • the Lower end face 32 facing away from valve closing body 13 is the valve seat body 25 with a e.g. cup-shaped trained spray plate 34 concentric and firm connected.
  • the connection of valve seat body 25 and Spray plate 34 is carried out, for example, by a circumferential and dense, e.g. using a laser trained weld 45.
  • the insertion depth of the valve seat body 25 and Spray plate 34 existing valve seat part in the Longitudinal bore 3 determines i.a. the adjustment of the stroke of the Valve needle 6, since the one end position of the valve needle 6.
  • the other End position of the valve needle 6 is when excited Magnetic coil 10, for example, by the installation of the upper one End face of the armature 12 on a lower end face 35 of the core 11 set. The way between these two End positions of the valve needle 6 represents the stroke.
  • the spherical valve closing body 8 interacts with the surface tapering in the direction of the flow of the valve seat 26 of the valve seat body 25 together, the downstream of the guide opening 31 of the valve seat body 25 is formed.
  • the guide opening 31 has at least one flow passage 27, the one Flow of the medium towards the valve seat 26 of the Valve seat body 25 allows.
  • too 13 flow passages in the form of Grooves or flats may be provided.
  • FIG. 2 and 3 is the invention Connecting part 14 of the valve needle 6 again as Single component before achieving firm connections with the armature 12 and the valve closing body 13 are shown, 3 shows a plan view of the connecting part 14 at its upstream end, at which, for example a chamfer 48 is annular.
  • the wall radially completely penetrating slots 50 are provided, which do not overlap extend the entire length of the connecting part 14. Rather, they run parallel to the longitudinal axis of the valve 2 extending slots 50 only over most of the axial length of the connecting part 14, at least over 75% of the length, for example over 90% or more.
  • On the executed connecting part 14 is the length of the unslit end 55 downstream of the slit end 51 for example, only about 1 mm, so that the Valve closing body 13 facing lower blind hole volume is kept very small in the longitudinal opening 52.
  • a connecting part 14 can be produced by a commercial tube single tubular Connecting parts 14 according to the required length be separated and then in the longitudinal direction from the slots 50 are made at one end, for example by milling, sawing, laser cutting or like.
  • the production of the connecting part 14 also be done in such a way that from a flat sheet metal Sheet metal sections 56, as shown in FIG. 4, in a so-called wristwatch shape, for example by punching getting produced.
  • the sheet metal section 56 consists of a central circular area 57 from which two elongated sheet metal tabs 58 in exactly opposite Extend direction.
  • the sheet metal tabs 58 have one smaller width than the diameter of the central one Area 57.
  • a stamp of a not shown Deep-drawing tool first attacks in area 57, whereby this is deep-drawn into a cup.
  • the connecting part 14th optionally provided with a plurality of flow openings 60 which the walls of the two half-shells of the connecting part 14 penetrate.
  • circular and flow openings 60 introduced by punching are included Dashed lines indicated on the connecting part 14 in Figure 2.
  • the manufacture of the connecting part 14 from one Sheet metal section 56 is a particularly light and simple manufacturing method that represents the use different materials and one Series production in large numbers allowed.
  • Providing the slots 50 in the connecting part 14 is that Connecting part 14 on the side facing the armature 12 resilient so that for the inner opening of the anchor 12 and the connecting part 14 itself relatively rough Tolerances can be selected.
  • the elastic part is the connecting part 14 with its two half-shells under tension in the inner Opening of the armature 12 can be inserted.
  • non-resilient end 55 is the Weld 16 with a very high dynamic strength achievable.

Claims (8)

  1. Soupape à commande électromagnétique, notamment injecteur pour une installation d'injection de carburant d'un moteur à combustion interne à compression de mélange et allumage commandé, ayant un axe longitudinal, un noyau entouré au moins partiellement par une bobine électromagnétique, un induit, un organe d'obturation de soupape coopérant avec un siège de soupape, une pièce de liaison reliant l'induit et le corps d'obturation de soupape,
    caractérisée en ce que
    la pièce de liaison (14) est munie de deux fentes (50) traversant la paroi et les fentes (50), partant d'une seule et même surface frontale, s'étendent sur plus de 75 % et moins de 100 % de la longueur axiale de la pièce de liaison (14).
  2. Soupape selon la revendication 1,
    caractérisée en ce que
    la pièce de liaison (14) est en tôle métallique.
  3. Soupape selon l'une quelconque des revendications 1 ou 2,
    caractérisée en ce que
    les deux fentes (50) sont opposées à 180° et sont parallèles à l'axe longitudinal (2).
  4. Soupape selon l'une quelconque des revendications précédentes,
    caractérisée en ce que
    la paroi de la pièce de liaison (14) est munie d'au moins un orifice d'écoulement (60) qui la traverse.
  5. Soupape selon la revendication 1,
    caractérisée en ce que
    l'organe d'obturation de soupape (13) est en forme de bille et est relié à l'extrémité non fendue (55) de la pièce de liaison (14).
  6. Soupape selon la revendication 5,
    caractérisée en ce que
    la liaison fixe entre l'organe d'obturation de soupape (13) et la pièce de liaison (14) est réalisée par un cordon de soudure (16) complet sur 360°.
  7. Soupape selon la revendication 2,
    caractérisée en ce que
    la pièce de liaison (14) est obtenue par matriçage suivi d'un emboutissage profond.
  8. Soupape selon la revendication 7,
    caractérisée par
    un segment de tôle (55) découpé dans de la tôle pour fabriquer la pièce de liaison (14), et ayant la forme d'un bracelet montre avec une zone circulaire (57) centrale et deux pattes de tôle (58) qui partent dans des directions opposées.
EP98928077A 1997-07-15 1998-03-26 Soupape a commande electromagnetique Expired - Lifetime EP0925441B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19730202A DE19730202A1 (de) 1997-07-15 1997-07-15 Elektromagnetisch betätigbares Ventil
DE19730202 1997-07-15
PCT/DE1998/000885 WO1999004158A1 (fr) 1997-07-15 1998-03-26 Soupape a commande electromagnetique

Publications (2)

Publication Number Publication Date
EP0925441A1 EP0925441A1 (fr) 1999-06-30
EP0925441B1 true EP0925441B1 (fr) 2002-10-30

Family

ID=7835706

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98928077A Expired - Lifetime EP0925441B1 (fr) 1997-07-15 1998-03-26 Soupape a commande electromagnetique

Country Status (9)

Country Link
US (1) US6317978B2 (fr)
EP (1) EP0925441B1 (fr)
JP (1) JP2001502400A (fr)
KR (1) KR20000068545A (fr)
CN (1) CN1095034C (fr)
BR (1) BR9806201A (fr)
DE (2) DE19730202A1 (fr)
ES (1) ES2187031T3 (fr)
WO (1) WO1999004158A1 (fr)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3884310B2 (ja) * 2002-03-22 2007-02-21 愛三工業株式会社 電磁式燃料噴射弁
US7552880B2 (en) 2004-08-05 2009-06-30 Continental Automotive Systems Us, Inc. Fuel injector with a deep-drawn thin shell connector member and method of connecting components
JP3993594B2 (ja) * 2004-09-27 2007-10-17 株式会社ケーヒン 電磁式燃料噴射弁
DE102008048597B4 (de) * 2008-09-23 2012-04-05 Robert Bosch Gmbh Elektromagnetisches Sitzventil einer harten Dichtpaarung
GB2519171B (en) * 2013-10-14 2016-02-17 Redd & Whyte Ltd Micro-Valve
DE102017223866A1 (de) * 2017-12-29 2019-07-04 Robert Bosch Gmbh Ventil zum Zumessen eines Fluids, insbesondere Brennstoffeinspritzventil
CN209164045U (zh) * 2018-11-19 2019-07-26 浙江锐韦机电科技有限公司 泵阀一体机构
WO2021090388A1 (fr) * 2019-11-06 2021-05-14 三菱電機株式会社 Soupape d'injection de combustible

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3831196A1 (de) * 1988-09-14 1990-03-22 Bosch Gmbh Robert Elektromagnetisch betaetigbares ventil
DE3904447A1 (de) * 1989-02-15 1990-08-16 Bosch Gmbh Robert Magnetanker
DE4008675A1 (de) 1990-03-17 1991-09-19 Bosch Gmbh Robert Elektromagnetisch betaetigbares ventil
US5199648A (en) * 1991-03-20 1993-04-06 Zexel Corporation Fuel injection valve
DE4131500A1 (de) * 1991-09-21 1993-03-25 Bosch Gmbh Robert Elektromagnetisch betaetigbares einspritzventil
DE4230376C1 (fr) * 1992-09-11 1993-04-22 Robert Bosch Gmbh, 7000 Stuttgart, De
DE9309104U1 (de) * 1993-06-18 1994-10-27 Behr Thomson Dehnstoffregler Belüftungsventil
DE4426006A1 (de) 1994-07-22 1996-01-25 Bosch Gmbh Robert Ventilnadel für ein elektromagnetisch betätigbares Ventil und Verfahren zur Herstellung
DE19532865A1 (de) * 1995-09-06 1997-03-13 Bosch Gmbh Robert Brennstoffeinspritzventil
JP3338614B2 (ja) * 1996-06-03 2002-10-28 愛三工業株式会社 燃料噴射弁
DE19712922B4 (de) * 1997-03-27 2005-08-11 Robert Bosch Gmbh Brennstoffeinspritzventil

Also Published As

Publication number Publication date
DE19730202A1 (de) 1999-01-21
US6317978B2 (en) 2001-11-20
ES2187031T3 (es) 2003-05-16
KR20000068545A (ko) 2000-11-25
DE59806106D1 (de) 2002-12-05
WO1999004158A1 (fr) 1999-01-28
CN1234852A (zh) 1999-11-10
CN1095034C (zh) 2002-11-27
US20010015418A1 (en) 2001-08-23
BR9806201A (pt) 2000-02-15
JP2001502400A (ja) 2001-02-20
EP0925441A1 (fr) 1999-06-30

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