EP0602001A2 - Injecteur à commande électromagnétique - Google Patents

Injecteur à commande électromagnétique Download PDF

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Publication number
EP0602001A2
EP0602001A2 EP94101334A EP94101334A EP0602001A2 EP 0602001 A2 EP0602001 A2 EP 0602001A2 EP 94101334 A EP94101334 A EP 94101334A EP 94101334 A EP94101334 A EP 94101334A EP 0602001 A2 EP0602001 A2 EP 0602001A2
Authority
EP
European Patent Office
Prior art keywords
fuel inlet
valve
inlet connector
valve seat
plastic casing
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.)
Granted
Application number
EP94101334A
Other languages
German (de)
English (en)
Other versions
EP0602001A3 (fr
EP0602001B1 (fr
Inventor
Peter Romann
Ferdinand Reiter
Rudolf Babitzka
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 EP0602001A2 publication Critical patent/EP0602001A2/fr
Publication of EP0602001A3 publication Critical patent/EP0602001A3/fr
Application granted granted Critical
Publication of EP0602001B1 publication Critical patent/EP0602001B1/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
    • F02M51/06—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
    • 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
    • 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
    • F02M51/0614—Injectors peculiar thereto with means directly operating the valve needle using electromagnetic operating means characterised by arrangement of electromagnets or fixed armature
    • 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
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S239/00—Fluid sprinkling, spraying, and diffusing
    • Y10S239/90—Electromagnetically actuated fuel injector having ball and seat type valve
    • 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
    • Y10T29/49002—Electrical device making
    • Y10T29/4902—Electromagnet, transformer or inductor

Definitions

  • the invention relates to an electromagnetically actuated injection valve according to the preamble of patent claim 1.
  • valve according to the invention with the characterizing features of claim 1 has the advantage of simple manufacture and assembly, which allows inexpensive series production.
  • the example shown electromagnetically actuated injection valve for fuel injection systems of internal combustion engines has a fuel inlet connector 1 surrounded by a magnet coil 4 and serving as the core, which has a constant outer diameter, for example by means of centerless loops, over its entire length for the best possible use of space.
  • the magnet coil 4 with a coil body 2 is provided with a plastic encapsulation 7, at the same time an electrical connector plug 21 being molded, so that there is an independent plastic injection molded part containing the magnet coil 4 and the connector plug 21.
  • the magnet coil 4 which has a stepped coil body 2 in the radial direction with a winding 13 which is stepped in the radial direction, in conjunction with the fuel inlet connector 1 having a constant outer diameter, enables a short and compact structure of the injection valve, as will be explained below.
  • a tubular metallic intermediate part 6 is connected by welding concentrically to a longitudinal valve axis 5 and thereby overlaps the core end 3 partially axially with an upper cylinder section 41.
  • the stepped bobbin 2 partially overlaps the fuel inlet connector 1 and, with a step 42 of larger diameter, the cylinder section 41 of the intermediate part 6.
  • the intermediate section 6 is provided at its end facing away from the fuel inlet connector 1 with a lower cylinder section 43 which engages over and with a tubular connecting part 14 is tightly connected by welding.
  • a cylindrical valve seat body 8 is tightly mounted by welding. The lining up of fuel inlet connector 1, intermediate part 6, connecting part 14 and valve seat body 8 thus represents a rigid metal unit.
  • the valve seat body 8 has a constant outer diameter, for example formed by centerless grinding, so that the valve seat body 8 can be inserted completely into the connecting part 14 can and through the longer coverage better tightness between valve seat body 8 and the inner bore 30 of the connecting part 14 is achieved.
  • a tubular armature 12 is connected by welding, which is guided by a guide collar 15 of the intermediate part 6.
  • a valve closing body 10 which interacts with the valve seat 9 of the valve seat body 8, is connected to it, for example by soldering or welding, which is designed, for example, as a ball.
  • At least one spray opening 33 Downstream of the valve seat 9, at least one spray opening 33, for example formed by eroding, is formed in the valve seat body 8.
  • the weld seam 35 between the valve seat body 8 and the connecting part 14 is relatively far away from the spray opening (s) 33 and from the valve seat 9, so that an influence on the quantity and leakage due to warping of the valve seat body 8 due to the high temperatures occurring during welding is effectively prevented.
  • an axial gap 29 is formed in which, by clamping, a gap which forms a residual air gap between the inlet-side end face 26 of the armature 12 and the end face 23 of the core end 3, limits the stroke of the valve closing body 10 during the opening process of the valve non-magnetic stop plate 27 is arranged.
  • the clamped stop disc 27 protects the end face 23 of the core end 3 because of its greater bending stiffness better from wear than a loose disc, in which there is a risk of tilting and uneven striking.
  • the magnet coil 4 is surrounded by at least one guide element 16, which is designed as a bracket in the exemplary embodiment and serves as a ferromagnetic element, which extends in the axial direction over the entire length of the magnet coil 4 and at least partially surrounds the magnet coil 4 in the circumferential direction and with one end thereof Fuel inlet connector 1 and with its other end on the connecting part 14 and z. B. is connected by welding.
  • a part of the valve is enclosed by a plastic sheath 18, which extends axially from the fuel inlet connector 1, extends axially via the magnet coil 4 with connector 21 and the at least one guide element 16, and extends radially extending side faces of an annular groove provided on the circumference of the inlet-side end 44 of the fuel inlet connector 1 25 forms.
  • the groove base of the annular groove 25, which has a sealing ring 45, for example, is formed by the circumference of the fuel inlet connector 1.
  • the plastic casing 18 engages in a holding groove 46 at the inlet end 44 of the fuel inlet connector 1.
  • the described plastic encapsulation 7 of the solenoid 4 in connection with the injection molded connector 21 allows a high degree of flexibility in the assembly of differently designed valves, since only one extrusion tool is required for connecting connectors 21 and solenoids 4 of different design to produce the plastic casing 18.
  • the magnet coil 4 which has the coil body 2 stepped in the radial direction with the winding 13 stepped in the radial direction, enables a compact and short design of the valve by projecting beyond the upper cylinder section 41 of the intermediate part 6 and thus causing the individual parts to be interleaved.

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)
  • Fuel-Injection Apparatus (AREA)
  • Magnetically Actuated Valves (AREA)
  • Electromagnets (AREA)
EP94101334A 1990-02-03 1991-01-21 Injecteur à commande électromagnétique Expired - Lifetime EP0602001B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE4003228 1990-02-03
DE4003228A DE4003228A1 (de) 1990-02-03 1990-02-03 Elektromagnetisch betaetigbares ventil
EP91902298A EP0513037B1 (fr) 1990-02-03 1991-01-21 Soupape a commande electromagnetique

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
EP91902298.8 Division 1991-01-21

Publications (3)

Publication Number Publication Date
EP0602001A2 true EP0602001A2 (fr) 1994-06-15
EP0602001A3 EP0602001A3 (fr) 1994-11-17
EP0602001B1 EP0602001B1 (fr) 1996-04-10

Family

ID=6399369

Family Applications (2)

Application Number Title Priority Date Filing Date
EP94101334A Expired - Lifetime EP0602001B1 (fr) 1990-02-03 1991-01-21 Injecteur à commande électromagnétique
EP91902298A Expired - Lifetime EP0513037B1 (fr) 1990-02-03 1991-01-21 Soupape a commande electromagnetique

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP91902298A Expired - Lifetime EP0513037B1 (fr) 1990-02-03 1991-01-21 Soupape a commande electromagnetique

Country Status (9)

Country Link
US (3) US5275341A (fr)
EP (2) EP0602001B1 (fr)
JP (2) JP2986542B2 (fr)
KR (1) KR0185731B1 (fr)
BR (1) BR9105985A (fr)
DE (3) DE4003228A1 (fr)
ES (2) ES2086971T3 (fr)
RU (1) RU2092735C1 (fr)
WO (1) WO1991011611A2 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1996010262A1 (fr) * 1994-09-27 1996-04-04 Synchro-Start Products, Inc. Actionneur a bobine double avec circuit de temporisation
GB2323634A (en) * 1997-03-27 1998-09-30 Bosch Gmbh Robert Fuel injection valve with sheet metal parts
US6601786B2 (en) 2000-05-12 2003-08-05 Denso Corporation Fuel injection valve
WO2005061868A1 (fr) * 2003-12-23 2005-07-07 Ln Systems Aps Moteur a combustion interne

Families Citing this family (108)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4131500A1 (de) * 1991-09-21 1993-03-25 Bosch Gmbh Robert Elektromagnetisch betaetigbares einspritzventil
DE4221757C2 (de) * 1992-07-02 1997-05-15 Rexroth Mannesmann Gmbh Magnetbetätigtes Proportional-Wegeventil
DE4325842A1 (de) * 1993-07-31 1995-02-02 Bosch Gmbh Robert Brennstoffeinspritzventil
DE4412277A1 (de) * 1994-04-09 1995-10-12 Bosch Gmbh Robert Elektromagnetisch betätigbares Brennstoffeinspritzventil
US5433386A (en) * 1994-06-24 1995-07-18 Siemens Automotive L.P. Fuel injector having an adjustment tube that discourages support for a vapor bubble dome
US5494223A (en) * 1994-08-18 1996-02-27 Siemens Automotive L.P. Fuel injector having improved parallelism of impacting armature surface to impacted stop surface
JPH08189439A (ja) * 1994-12-28 1996-07-23 Zexel Corp 電磁式燃料噴射弁およびそのノズルアッシィ組付け方法
US5577663A (en) * 1995-05-19 1996-11-26 Siemens Automotive Corporation Bottom feed injector with top calibration feed
DE19632196B4 (de) * 1996-08-09 2004-11-04 Robert Bosch Gmbh Elektromagnetisch betätigbares Ventil
DE19647587A1 (de) * 1996-11-18 1998-05-20 Bosch Gmbh Robert Brennstoffeinspritzventil
JPH10196488A (ja) * 1997-01-08 1998-07-28 Aisan Ind Co Ltd 電磁式燃料噴射弁
US5944262A (en) * 1997-02-14 1999-08-31 Denso Corporation Fuel injection valve and its manufacturing method
DE19727414A1 (de) 1997-06-27 1999-01-07 Bosch Gmbh Robert Verfahren zur Herstellung einer Magnetspule für ein Ventil und Ventil mit einer Magnetspule
DE19739850A1 (de) * 1997-09-11 1999-03-18 Bosch Gmbh Robert Elektromagnetisch betätigbares Ventil
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DE102008064876C5 (de) 2008-05-30 2024-08-01 Rapa Automotive Gmbh & Co. Kg Baugruppe für eine Elektromagnetvorrichtung
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DE102013216836A1 (de) * 2013-08-23 2015-02-26 Continental Automotive Gmbh Stellantrieb zur Betätigung eines Einspritzventils und Einspritzventil
DE102013225840A1 (de) 2013-12-13 2015-06-18 Robert Bosch Gmbh Brennstoffeinspritzventil
DE102013225834A1 (de) 2013-12-13 2015-06-18 Robert Bosch Gmbh Brennstoffeinspritzventil
DE102013225812A1 (de) 2013-12-13 2015-06-18 Robert Bosch Gmbh Brennstoffeinspritzventil
DE102013225820A1 (de) 2013-12-13 2015-06-18 Robert Bosch Gmbh Brennstoffeinspritzventil
DE102013225829A1 (de) 2013-12-13 2015-06-18 Robert Bosch Gmbh Brennstoffeinspritzventil
DE102013225817A1 (de) 2013-12-13 2015-06-18 Robert Bosch Gmbh Brennstoffeinspritzventil
DE102014225994A1 (de) 2014-12-16 2016-06-16 Robert Bosch Gmbh Brennstoffeinspritzventil
DE102014225999A1 (de) 2014-12-16 2016-06-16 Robert Bosch Gmbh Brennstoffeinspritzventil
DE102014226003A1 (de) 2014-12-16 2016-06-16 Robert Bosch Gmbh Brennstoffeinspritzventil
DE102015217673A1 (de) 2015-09-15 2017-03-16 Continental Automotive Gmbh Einspritzvorrichtung zur Zumessung eines Fluids und Kraftfahrzeug mit einer derartigen Einspritzvorrichtung
DE102015226541A1 (de) 2015-12-22 2017-06-22 Robert Bosch Gmbh Brennstoffeinspritzventil
DE102015226515A1 (de) 2015-12-22 2017-06-22 Robert Bosch Gmbh Brennstoffeinspritzventil
DE102015226533A1 (de) 2015-12-22 2017-06-22 Robert Bosch Gmbh Brennstoffeinspritzventil
DE102015226528A1 (de) 2015-12-22 2017-06-22 Robert Bosch Gmbh Brennstoffeinspritzventil
DE102016226135A1 (de) 2016-12-23 2018-06-28 Robert Bosch Gmbh Brennstoffeinspritzventil
DE102016226142A1 (de) 2016-12-23 2018-06-28 Robert Bosch Gmbh Brennstoffeinspritzventil
DE102017206057A1 (de) 2017-04-10 2018-10-11 Robert Bosch Gmbh Spulenbaugruppe für elektromagnetische Ventile
JP6782668B2 (ja) * 2017-06-16 2020-11-11 日立オートモティブシステムズ株式会社 燃料噴射弁
US10502112B2 (en) * 2017-09-14 2019-12-10 Vitesco Technologies USA, LLC Injector for reductant delivery unit having fluid volume reduction assembly
US10947880B2 (en) 2018-02-01 2021-03-16 Continental Powertrain USA, LLC Injector for reductant delivery unit having fluid volume reduction assembly
DE102020214154A1 (de) 2020-11-11 2022-05-12 Robert Bosch Gesellschaft mit beschränkter Haftung Brennstoffeinspritzventil
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DE102020215621A1 (de) 2020-12-10 2022-06-15 Robert Bosch Gesellschaft mit beschränkter Haftung Brennstoffeinspritzventil
DE102020215794A1 (de) 2020-12-14 2022-06-15 Robert Bosch Gesellschaft mit beschränkter Haftung Brennstoffeinspritzventil
DE102022210875A1 (de) 2022-10-14 2024-04-25 Robert Bosch Gesellschaft mit beschränkter Haftung Brennstoffeinspritzventil

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Also Published As

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WO1991011611A3 (fr) 1991-09-19
US6341412B1 (en) 2002-01-29
BR9105985A (pt) 1992-11-10
DE4003228A1 (de) 1991-08-22
ES2062761T3 (es) 1994-12-16
ES2086971T3 (es) 1996-07-01
DE4003228C2 (fr) 1992-11-26
US5580001A (en) 1996-12-03
DE59103119D1 (de) 1994-11-03
EP0513037A1 (fr) 1992-11-19
EP0602001A3 (fr) 1994-11-17
JPH05503976A (ja) 1993-06-24
US5275341A (en) 1994-01-04
DE59107672D1 (de) 1996-05-15
EP0513037B1 (fr) 1994-09-28
JP2986542B2 (ja) 1999-12-06
RU2092735C1 (ru) 1997-10-10
WO1991011611A2 (fr) 1991-08-08
KR0185731B1 (ko) 1999-03-20
JP3027353B2 (ja) 2000-04-04
JPH10122085A (ja) 1998-05-12
KR920703997A (ko) 1992-12-18
EP0602001B1 (fr) 1996-04-10

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