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EP1364115B1 - Soupape d'injection de carburant - Google Patents

Soupape d'injection de carburant Download PDF

Info

Publication number
EP1364115B1
EP1364115B1 EP02717966A EP02717966A EP1364115B1 EP 1364115 B1 EP1364115 B1 EP 1364115B1 EP 02717966 A EP02717966 A EP 02717966A EP 02717966 A EP02717966 A EP 02717966A EP 1364115 B1 EP1364115 B1 EP 1364115B1
Authority
EP
European Patent Office
Prior art keywords
fuel injection
injection valve
connecting plug
valve
valve according
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
EP02717966A
Other languages
German (de)
English (en)
Other versions
EP1364115A1 (fr
Inventor
Dieter Maier
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 EP1364115A1 publication Critical patent/EP1364115A1/fr
Application granted granted Critical
Publication of EP1364115B1 publication Critical patent/EP1364115B1/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
    • 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
    • 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
    • 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
    • F02M2200/00—Details of fuel-injection apparatus, not otherwise provided for
    • F02M2200/16—Sealing of fuel injection apparatus not otherwise provided for
    • 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
    • F02M2200/90—Selection of particular materials
    • F02M2200/9015—Elastomeric or plastic materials

Definitions

  • the invention is based on a fuel injector according to the preamble of claim 1.
  • a disadvantage of that known from DE 198 53 102 A1 Fuel injector is particularly that with the Plastic encapsulation one-piece electrical Plug contact only through great effort by retrofitting the Injection molding machines adapted to different connector systems can be.
  • the line of fuel is off Injection molded plastic part disadvantageous because of Plastic is exposed to the solvent power of the fuel and thereby leaks by loosening the plastic may occur. Furthermore, the stability of the Connection part by heating and subsequent deformation insufficient when operating the internal combustion engine guaranteed.
  • the fuel injector according to the invention with the has characteristic features of claim 1 in contrast, the advantage that the metallic hollow body, which in an inlet end of the valve sleeve of the Fuel injector is inserted that Fuel injector both stabilized as well neutral basis for the assembly of various connectors provides the easy way to extend the Fuel injector can be clipped.
  • the connector by means of a Mounted on the metallic hollow body or can be clipped, the bracket for example how a spring washer can be designed, the metallic Hollow body partially includes.
  • the contact lugs of the magnetic coil are advantageously and the connector parallel to each other and to Valve sleeve aligned, which is easy to assemble and subsequent connection enabled.
  • Another advantage is that both Fuel injector as well as the metallic one Hollow bodies can be produced separately and then can be combined without the conventional components the design of the fuel injectors changed Need to become.
  • Fig. 1 shows in a partial, schematic Sectional view of a longitudinal section through a Fuel injection valve 1, which in particular for Injecting fuel into a not shown Intake pipe of an internal combustion engine is suitable.
  • the fuel injection valve 1 comprises a solenoid coil 2, which is wound on a bobbin 3.
  • the coil former 3 is encapsulated in a valve housing 4 and through a Cover 5 completed.
  • On the coil carrier 3 is one Contact lug 6 formed in the embodiment parallel to a longitudinal axis 33 of the Fuel injector 1 is aligned.
  • the coil former 3 is supported by a valve sleeve 7 penetrated, which is tubular and a therein comprises expanded or welded support tube 8, which serves as the inner pole of the magnet coil 2.
  • a valve sleeve 7 penetrated, which is tubular and a therein comprises expanded or welded support tube 8, which serves as the inner pole of the magnet coil 2.
  • the magnet coil 2 can, for example, the valve housing 4 serve.
  • An armature 9 is located on the outflow side of the support tube 8 arranged in one piece with a valve needle 10 is trained.
  • Flow openings 11 are provided, which the Fuel injection valve 1 flowing through fuel a seal seat.
  • valve needle 10 is preferably in operative connection with welding a spherical in the embodiment Valve closing body 13, which has a valve seat body 14 forms a sealing seat. Downstream of the sealing seat is in a spray plate 34 at least one spray orifice 15 trained from which the fuel in the no further the intake manifold shown is injected.
  • the anchor 9 is in the idle state of the Fuel injector 1 from a return spring 16 so applied that the fuel injector 1 by the Pressure of the valve closing body 13 on the valve seat body 14 is kept closed.
  • the return spring 16 is in a recess 17 of the armature 9 or the support tube 8 arranged and is on by an adjusting sleeve 18 Brought preload.
  • the adjusting sleeve 18 is on the inlet side a cup-shaped filter element 19 in the valve sleeve 7 preferably pressed.
  • the fuel generated by a central fuel supply 20 is supplied, flows through the fuel injector 1 through the recess 17 and the flow openings 11 to the sealing seat and Spray opening 15.
  • the fuel injector 1 is closed as soon as the the solenoid 2 exciting current turned off and that Magnetic field is reduced so far that the return spring 16th the anchor 9 pushes off the support tube 8, whereby the Valve needle 10 moves in the outflow direction and the Valve closing body 13 is placed on the valve seat body 14.
  • Fig. 2 shows that in an excerpted sectional view shown in Fig. 1 and with the invention Measures equipped and assembled Fuel injector 1. The same components are included matching reference numerals. On a Repeating description of already known components to be dispensed with.
  • the fuel injection valve 1 is in a final production state in FIG. 2 shown.
  • a collar 22 is on that Valve housing 4 attached at its lower end or injection molded, whereby an annular groove is formed in the one first seal 23 is introduced.
  • a tubular, metallic hollow body 25 inserted and with the valve sleeve 7 z. B. in the area of the filter element 19th welded.
  • a customer-specific connector 26 On the metallic hollow body 25 is a customer-specific connector 26 by means of a preferably made of plastic holder 27th attached, which is designed for example as a spring washer and the metallic hollow body 25 at least partially embraces.
  • the connector plug 26 has a contact tab 28 on the contact lug 6 of the magnet coil 2 aligned and after assembly using suitable Techniques such as B. welding, soldering or gluing or with a clamp or plug connection is connected to it.
  • the fuel injector 1 has the connector 26 a plastic sleeve 29, which the contact tab 28th surrounds and protrudes beyond them.
  • the plastic sleeve 29 is also known as a clip connector and has one circumferential groove 30, which in the further processing as Approach to a molding tool.
  • the seal between the connector 26 and the Plastic encapsulation 31 takes place by melting the Connector 26 in the area of targeted, circular circumferential tips 35 in the central region 36 of the connector 26, which is why the plastic Plastic extrusion 31 have a higher melting point must be the same as that of the connector 26.
  • the connector 26 is in a certain desired plastic paint used, so that for Color coding serving connector 26 the Fuel injector 1 without additional information characterize clearly. About one Different valve types can be very color coded simply assign.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Manufacturing & Machinery (AREA)
  • Fuel-Injection Apparatus (AREA)

Claims (8)

  1. Injecteur de carburant comprenant une bobine magnétique (2) qui coopère avec un induit (9) soumis à l'action d'un ressort de rappel (16) qui forme avec une aiguille de soupape (10) une partie de soupape mobile axialement, avec sur cette aiguille un obturateur (13) qui forme avec un corps de siège de soupape (14) un siège d'étanchéité, ainsi qu'au moins une première portée de contact (6) en liaison conductrice avec la bobine magnétique (2),
    caractérisé en ce qu'
    un corps métallique creux (25) constitue du côté entrée une prolongation de l'injecteur de carburant (1) en étant emmanché dans une douille de soupape (7), et un connecteur de raccordement (26) comportant au moins une seconde portée de contact (28) montée sur une attache (27) est serré sur le corps creux métallique (25) de façon telle que la seconde portée de contact (28) du connecteur de contact (26) est en liaison conductrice avec la première portée de contact (6) de la bobine magnétique (2).
  2. Injecteur de carburant selon la revendication 1,
    caractérisé en ce que
    la première portée de contact (6) de la bobine magnétique (2) est parallèle à la douille de soupape (7).
  3. Injecteur de carburant selon la revendication 1 ou 2,
    caractérisé en ce que
    l'attache (27) du connecteur de raccordement (26) entoure au moins en partie le corps métallique creux (25).
  4. Injecteur de carburant selon une des revendications 1 à 3,
    caractérisé en ce que
    la seconde portée de contact (28) du connecteur de raccordement (26) est parallèle à la portée de raccordement (6) de la bobine magnétique (2).
  5. Injecteur de carburant selon une des revendications 1 à 4,
    caractérisé en ce que
    le connecteur de raccordement (26) après le montage et la liaison des première et seconde portées de contact (6, 28) est fixé par injection périphérique de matière plastique (31) sur le corps métallique creux (25).
  6. Injecteur de carburant selon une des revendications 1 à 5,
    caractérisé en ce que
    une douille en matière plastique (29) prévue sur le connecteur de raccordement (26) présente une rainure (30) sur laquelle peut être mis en place un outil d'injection périphérique.
  7. Injecteur de carburant selon la revendication 5 ou 6,
    caractérisé en ce que
    le connecteur de raccordement (26) présente en dehors du support (27) une zone (36) sur laquelle est prévue au moins une pointe périphérique d'injection (35), saillante et en forme d'anneau.
  8. Injecteur de carburant selon les revendications 5 et 7,
    caractérisé en ce que
    la matière plastique de l'injection périphérique (31) présente un point de fusion qui est supérieur à celui de la matière plastique du connecteur de raccordement (26), de sorte que lors de l'injection périphérique de ce connecteur, les pointes périphériques (35) sont fondues en créant ainsi une liaison étanche.
EP02717966A 2001-02-22 2002-02-22 Soupape d'injection de carburant Expired - Lifetime EP1364115B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10108464A DE10108464A1 (de) 2001-02-22 2001-02-22 Brennstoffeinspritzventil
DE10108464 2001-02-22
PCT/DE2002/000644 WO2002066818A1 (fr) 2001-02-22 2002-02-22 Soupape d"injection de carburant

Publications (2)

Publication Number Publication Date
EP1364115A1 EP1364115A1 (fr) 2003-11-26
EP1364115B1 true EP1364115B1 (fr) 2004-11-24

Family

ID=7675067

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02717966A Expired - Lifetime EP1364115B1 (fr) 2001-02-22 2002-02-22 Soupape d'injection de carburant

Country Status (8)

Country Link
US (1) US6910642B2 (fr)
EP (1) EP1364115B1 (fr)
JP (1) JP4130771B2 (fr)
CN (1) CN1297742C (fr)
CZ (1) CZ20023456A3 (fr)
DE (2) DE10108464A1 (fr)
RU (1) RU2003127394A (fr)
WO (1) WO2002066818A1 (fr)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4058024B2 (ja) * 2004-06-16 2008-03-05 株式会社ケーヒン 電磁式燃料噴射弁
DE102004037541B4 (de) * 2004-08-03 2016-12-29 Robert Bosch Gmbh Brennstoffeinspritzventil
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
TWI295336B (en) * 2004-09-13 2008-04-01 Guk Hyun Park Fuel injection system
DE102005004320A1 (de) * 2005-01-31 2006-08-03 Robert Bosch Gmbh Ausrichtung elektrischer Überbrückungen in Injektoren
EP1783360B1 (fr) * 2005-11-02 2008-03-26 Delphi Technologies, Inc. Filtre interne pour un injecteur au carburant
CN100462549C (zh) * 2006-10-26 2009-02-18 贵州红林机械有限公司 燃气高精度喷射阀
JP4491474B2 (ja) * 2007-05-31 2010-06-30 日立オートモティブシステムズ株式会社 燃料噴射弁及びそのストローク調整方法
JP2009167843A (ja) * 2008-01-11 2009-07-30 Denso Corp 燃料噴射弁およびその製造方法
KR101000169B1 (ko) * 2008-12-03 2010-12-10 기아자동차주식회사 엘피아이 인젝터용 노즐
DE102010031277A1 (de) * 2010-07-13 2012-01-19 Robert Bosch Gmbh Kraftstoffeinspritzventil mit reduzierter Bauteileanzahl
DE102011078251A1 (de) * 2011-06-29 2013-01-03 Robert Bosch Gmbh Einspritzventil sowie Verfahren zur Herstellung eines Einspritzventils
DE102011084704A1 (de) * 2011-10-18 2013-04-18 Robert Bosch Gmbh Ausrichtelement für ein Einspritzventil sowie Verfahren zur Herstellung eines Einspritzventils
US9951731B2 (en) 2013-11-18 2018-04-24 Mitsubishi Electric Corporation Fuel injection valve and manufacturing method for fuel injection valve
DE112014007115B4 (de) 2014-10-28 2022-12-08 Mitsubishi Electric Corporation Kraftstoffeinspritzventil
CN112135966B (zh) * 2018-05-23 2022-05-31 三菱电机株式会社 燃料喷射阀
GB2602649B (en) * 2021-01-07 2023-01-04 Delphi Automotive Systems Lux Fuel injector

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4310719C2 (de) * 1993-04-01 2002-09-12 Bosch Gmbh Robert Verfahren zur Herstellung eines Magnetkreises für ein Ventil
US5462231A (en) * 1994-08-18 1995-10-31 Siemens Automotive L.P. Coil for small diameter welded fuel injector
DE19712591A1 (de) * 1997-03-26 1998-10-01 Bosch Gmbh Robert Brennstoffeinspritzventil und Verfahren zur Herstellung sowie Verwendung eines Brennstoffeinspritzventils
DE19744739A1 (de) * 1997-10-10 1999-04-15 Bosch Gmbh Robert Brennstoffeinspritzventil
IT1296144B1 (it) * 1997-11-18 1999-06-09 Elasis Sistema Ricerca Fiat Valvola di dosaggio registrabile per un iniettore di combustibile per motori a combustione interna.
DE19853102A1 (de) * 1998-06-18 1999-12-23 Bosch Gmbh Robert Brennstoffeinspritzventil
US6302340B1 (en) * 1999-05-14 2001-10-16 Siemans Automotive Corporation Post electrical plug assembly
US6105884A (en) * 1999-09-15 2000-08-22 Delphi Technologies, Inc. Fuel injector with molded plastic valve guides
US6186421B1 (en) * 1999-12-06 2001-02-13 Delphi Technologies, Inc. Fuel Injector

Also Published As

Publication number Publication date
JP2004518849A (ja) 2004-06-24
CZ20023456A3 (en) 2004-04-14
CN1457390A (zh) 2003-11-19
JP4130771B2 (ja) 2008-08-06
DE50201620D1 (de) 2004-12-30
RU2003127394A (ru) 2005-03-20
US20030168532A1 (en) 2003-09-11
WO2002066818A1 (fr) 2002-08-29
CN1297742C (zh) 2007-01-31
EP1364115A1 (fr) 2003-11-26
US6910642B2 (en) 2005-06-28
DE10108464A1 (de) 2002-09-05

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