US3567135A - Electromagnetically operated fuel injection valve - Google Patents

Electromagnetically operated fuel injection valve Download PDF

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Publication number
US3567135A
US3567135A US793648*A US3567135DA US3567135A US 3567135 A US3567135 A US 3567135A US 3567135D A US3567135D A US 3567135DA US 3567135 A US3567135 A US 3567135A
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US
United States
Prior art keywords
armature
valve
nozzle
chamber
fuel
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
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US793648*A
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English (en)
Inventor
Horst Gebert
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Robert Bosch GmbH
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Robert Bosch GmbH
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Publication date
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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
    • F02M61/162—Means to impart a whirling motion to fuel upstream or near discharging orifices
    • F02M61/163—Means being injection-valves with helically or spirally shaped grooves
    • 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
    • F02M51/0667—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 acting as a valve or having a short valve body attached thereto
    • 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
    • F02M51/08—Injectors peculiar thereto with means directly operating the valve needle specially for low-pressure fuel-injection
    • 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
    • F02M61/162—Means to impart a whirling motion to fuel upstream or near discharging orifices
    • 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
    • F02M2200/50—Arrangements of springs for valves used in fuel injectors or fuel injection pumps
    • F02M2200/505—Adjusting spring tension by sliding spring seats

Definitions

  • the present invention relates to electromagnetically operated valves in general, and more particularly to improvements in electromagnetically operated valves which are especially suited to inject fuel into the intake manifold of an internal combustionengine, particularly into an engine wherein the injection of fuel takes place by means of a time-controlled low-pressure fuel injection system.
  • One object of my invention is to provide a novel and improved electromagnetically operated fuel injection valve which is capable of discharging accurately measured amounts of fuel even if its nozzle is not machined with a high degree of precision.
  • Another object of the invention is to provide a valve whose operation is much less dependent on fluctuations in viscosity of fuel than the operation of conventional valves.
  • a further object of the invention ' is to provide a valve wherein the angle of divergence of the fuel spray which issues from the orifice of the nozzle can be regulated within a wide range and in a simple and inexpensive way.
  • An additional object of the invention is to provide a valve wherein the rate of fuel discharge is practically independent of the cross-sectional area of the conduitry which delivers fuel to the point immediately upstream of the orifice in the nozzle.
  • the novel valve comprises electromagnet means including a soft iron'core and coil means surrounding the core, a nozzle having a fluid-discharging orifice, an armature coaxially disposed between the core and the nozzle and having an annular sealing surface which normally abuts against the rear side of the nozzle to seal the orifice from an annular chamber provided in the armature and surrounding the sealing surface, the chamber being in communication with the orifice in response to axial movement of the armature away from the nozzle on energization of the electromagnet means, and means for admitting fluid to the chamber including at least one channel provided in the armature and being inclined inwardly toward and communicating with the chamber.
  • the projection of the channel into the plane of the sealing surface is at least nearly tangential to the chamber. This insures that the fluid which enters the chamber is set in circulatory motion whereby its movement includes a first component in circumferential direction and a second component in axial direction of the armature. The second component determines the rate of fluid flow into the orifice when the electromagnet means is energized.
  • FIG. 1 is an axial sectional view of an electromagnetically operated fuel injection valve which embodies the invention, the armature of the valve being shown in sealing position;
  • FIG. 2 is a graph showing the rates of fuel discharge from a conventional valve and from the valve of FIG. 1;
  • FIG. 3 is an enlarged side elevational view of a portion of the armature in the valve of FIG. 1;
  • FIG. 4 is a bottom plan view as seen in the direction of arrows from the line IV-IV of FIG. 3.
  • the electromagnetically operated fuel injection valve of FIG. 1 comprises a housing or body which includes a cupped main portion 1 and a cover portion 2.
  • the cupped portion 1 accommodates the electromagnet which includes a hollow soft iron core 3, a plastic coil support 4 and a coil 5.
  • the means for supplyingcurrent to the coil 5 comprises a male terminal 31 which is surrounded by a socket 30 of synthetic plastic material.
  • the cover portion 2 of the valve housing accommodates a reciprocable valve member 6 which is coaxial with the core 3 and is provided with an axially extending bore or passage 7 for a hardened cylindrical sealing member or plug 8 which, together with the valve member 6, constitutes the armature of the electromagnet.
  • the plug 8 has an annular sealing surface 9.
  • the front end portion of the valve member 6 is adjacent to a nozzle 10 which is provided with an axially extending orifice 11. That (front) end face 13 of the valve member 6 which is adjacent to the nozzle 10 is provided with an annular groove or chamber 12 which communicates with the discharge ends of two inclined channels 14 and-surrounds the sealing surface 9.
  • the channels 14 extend in part in the peripheral surface 15 of the valve member 6 and thereupon inwardly and forwardly toward the chamber 12.
  • a slitted. leaf spring 16 serves to support the valve member 6 for reciprocatory movement without friction. This leaf spring 16 is located in front of a flexible diaphragm 17 of synthetic plastic material which prevents escape of fuel through the slits.
  • the central portion of the parts 16, 17 are secured to the valve member 6 by a clamping ring 18 which surrounds the front end face 13, and the marginal portions of the parts 16, 17 are clamped between an internal shoulder of the cover portion 2 and a cap 19 which overlies the front side of the nozzle 10.
  • the means for maintaining the valve member 6 in closed or sealing position comprises a helical spring 21 which bears against an internal shoulder of the valve member and reacts against an axially adjustable sleevelike retainer 22 installed in the core 3.
  • the rear portion 8 of the plug 8 extends into the foremost convolutions of the spring 21.
  • the rear end portion 23 of the sleeve 22 is provided with external threads 24 and, once the sleeve is properly adjusted to determine the bias of the spring 21, its rear end portion is held against axial movement by suitable deformation of the surrounding part of the core 3.
  • THE OPERATION Fuel is admitted by way of a supply conduit 25 which is sealingly coupled to the socket 30 rearwardly of the sleeve 22.
  • the fuel then passes through a filter 26 in the rear end portion of the core 3, through a median portion'of the core, through the central passage 27 of the sleeve 22, through radially outwardly extending slots 28 of the sleeve 22, and into an annular compartment 29 between the valve member 6 and the cover portion 2 of the valve housing.
  • a sealing ring 32 is inserted between the parts 2 and 4 to prevent leakage of fuel to the coil 5.
  • the aforementioned inclined channels 14 connect the compartment 29 with the annular chamber 12 in the front end face 13 of the valve member 6.
  • the chamber 12 is sealed by surface 9 from the orifice 11 of the nozzle 10 when the coil 5 is deenergized.
  • the valve member 6 is retracted from the nozzle 10 against the opposition of the spring 21 so that fuel can flow radially inwardly along the sealing surface 9 of the plug 8 and into the orifice 11. Additional fuel enters the chamber 12 by way of the channels 14.
  • each channel 14 in the valve member 6 is shown in FIGS. 3 and 4.
  • the intake end of each channel 14 is located in the peripheral surface 15 of the valve member, and each channel 14 thereupon extends inwardly and forwardly along an inclined path so that the inclination of its axis with reference to the front face 13 of the valve member remains constant or substantially constant. This is indicated by the angles a which equal 40.
  • the discharge ends of the channels 14 are located in the bottom surface of the annular chamber 12 in the front end face 13 of the valve member 6.
  • channels 14 are tangential to the annular chamber 12 and that the discharge ends of these channels are located diametrically opposite each other with reference to the axis of the valve member.
  • Such formation of channels 14 insures that fuel which is admitted into the chamber 12 begins to rotate whereby the movement of fuel includes a component in circumferential direction and a component in axial direction of the valve member.
  • the width of the gap between the sealing surface 9 and the rear surface of the nozzle in energized condition of the electromagnet is constant. Therefore, the rate of outflow of fuel decreases if the component of movement in circumferential direction of the valve member increases.
  • the axial component of fuel flow determines the rate at which the fuel enters the orifice 11.
  • the relationship between axial and circumferential components of movement of fuel in the chamber 12 will be best understood with reference to the diagram of FIG. 2.
  • the curve A indicates the amounts M of fuel which leave the nozzle per unit of time as a function of the stroke H of the armature in conventional fuel injection valves wherein the fuel flows toward the sealing surface radially inwardly or in parallelism with the axis of the armature.
  • the curve B indicates the rate of fuel flow through the valve of the present invention, i.e., through a valve where the fuel is caused to circulate before it reaches the sealing surface 9.
  • the rate of fuel outflow is practically constant. In this region, the rate of fuel flow is independent of the cross-sectional area of the channels 14.
  • Another important advantage of the improved valve is that it allows for corrections in the rate of fuel flow in dependency on changes in viscosity of fuel. It was found that, because the fuel circulates in the chamber 12 upstream of the sealing surface 9, the effect of changes in viscosity of fuel on the rate of outflow is much less pronounced than in conventional electromagnetic fuel injection valves. This is attributed to the tangential component of movement of fuel in the chamber 12.
  • cap 19 An important function of the cap 19 is that it restricts the angle of divergence of the conical fuel spray which issues from the orifice 11.
  • the cap 19 is provided with a central aperture 20 which registers with the orifice l1. Depending on the type of engine in which the valve is being put to use, one can select an appropriate cap 19 to insure that the angle of the conical fuel spray is best suited for injection of fuel into the particular engine.
  • the spring 21 is capable of maintaining the surface 9 of the plug 8 in perfect sealing engagement with the nozzle 10 when the electromagnet is deenergized.
  • Still another important advantage of the improved valve is that it reacts practically without any delay to deenergization of the electromagnet. This is attributed to the fact that the magnetic resistance in the gap between the cover portion 2 and the valve member 6 exceeds considerably the magnetic resistance between the valve member 6 and the soft iron core 3. Also, during energization of the electromagnet, the magnetic flux remains practically unchanged.
  • a valve particularly for injection of fuel into the intake manifold of an internal combustion engine, comprising electromagnet means including a core and coil means surrounding said core; a nozzle located in front of and spaced from said core and having a planar rear face and a fluid-discharging orifice extending forwardly from said rear face; an armature installed between said core and said nozzle and having an annular planar sealing surface normally abutting against said planar rear face of said nozzle to seal said orifice from an annular chamber provided in said armature and surrounding said sealing surface, said chamber being in communication with said orifice in response to movement of said armature away from said nozzle on energization of said electromagnet means; and means for admitting fluid to said chamber, including at least one channel provided in said armature and being inclined inwardly toward and communicating with said chamber, the projection of said channel into the plane of said sealing surface being at least substantially tangential to said chamber.
  • said biasing means comprises a helical spring operating between a centrally located portion said armature and an adjusting member installed in said core.
  • a valve as defined in claim 1 wherein the fluid admitted into said chamber by way of said channel is caused to circulate in said chamber and has a first component of movement in the circumferential direction and a second component of movement in the axial direction of said armature, said second component determining the rate at which fluid enters said orifice in response to energization of said electromagnet means.

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  • 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)
US793648*A 1968-01-30 1969-01-24 Electromagnetically operated fuel injection valve Expired - Lifetime US3567135A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19681601395 DE1601395A1 (de) 1968-01-30 1968-01-30 Elektromagnetisch betaetigtes Einspritzventil

Publications (1)

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US3567135A true US3567135A (en) 1971-03-02

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US793648*A Expired - Lifetime US3567135A (en) 1968-01-30 1969-01-24 Electromagnetically operated fuel injection valve

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US (1) US3567135A (de)
CH (1) CH475475A (de)
DE (1) DE1601395A1 (de)
FR (1) FR1596356A (de)
GB (1) GB1249357A (de)
SE (1) SE350305B (de)

Cited By (57)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3669361A (en) * 1969-08-01 1972-06-13 Sopromi Soc Proc Modern Inject Electromagnetic fuel injectors for internal combustion engines
US3735927A (en) * 1970-04-22 1973-05-29 Sopromi Soc Proc Modern Inject Electro magnetic injector
US3761023A (en) * 1970-09-25 1973-09-25 Sopromi Soc Proc Modern Inject Electromagnetic injectors for internal combustion engines
US3865312A (en) * 1972-01-06 1975-02-11 Renault Electromagnetically operated ball-type injectors
US4033513A (en) * 1975-11-06 1977-07-05 Allied Chemical Corporation Electromagnetically operated valve
DE3028742A1 (de) * 1979-08-03 1981-02-05 Alfa Romeo Spa Elektro-einspritzventil mit kurzen uebergangszustaenden
US4365747A (en) * 1979-09-08 1982-12-28 Robert Bosch Gmbh Electromagnetically actuatable fuel injection valve
US4387677A (en) * 1980-06-24 1983-06-14 Holt Lloyd S.A. Fuel, more especially auxiliary starting fuel, injectors for internal combustion engines and to auxiliary carburetors associable with such injectors
US4502632A (en) * 1980-12-12 1985-03-05 Robert Bosch Gmbh Electromagnetically actuatable valve, in particular a fuel injection valve for fuel injection systems
US4555060A (en) * 1981-05-13 1985-11-26 Robert Bosch Gmbh Electromagnetically actuated valve, in particular a fuel injection valve for fuel injection systems
US4666088A (en) * 1984-03-28 1987-05-19 Robert Bosch Gmbh Fuel injection valve
US4678124A (en) * 1981-11-05 1987-07-07 Robert Bosch Gmbh Electromagnetically actuatable valve in particular a fuel injection valve
DE3834444A1 (de) * 1988-10-10 1990-04-12 Mesenich Gerhard Elektromagnetisches einspritzventil mit membranfeder
DE3834447A1 (de) * 1988-10-10 1990-04-12 Mesenich Gerhard Elektromagnetisches einspritzventil und verfahren zu dessen herstellung
US4982902A (en) * 1980-03-20 1991-01-08 Robert Bosch Gmbh Electromagnetically actuatable valve
US4984744A (en) * 1988-12-24 1991-01-15 Robert Bosch Gmbh Electromagnetically actuatable valve
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
WO1998042977A1 (de) * 1997-03-26 1998-10-01 Robert Bosch Gmbh Brennstoffeinspritzventil und verfahren zur herstellung sowie verwendung eines brennstoffeinspritzventils
US5820099A (en) * 1997-05-20 1998-10-13 Siemens Automotive Corporation Fluid migration inhibitor for fuel injectors
US6286770B1 (en) 1999-09-28 2001-09-11 MAGNETI MARELLI S.p.A. Fuel injection of an improved type
US6481646B1 (en) 2000-09-18 2002-11-19 Siemens Automotive Corporation Solenoid actuated fuel injector
US6499677B2 (en) 2000-12-29 2002-12-31 Siemens Automotive Corporation Modular fuel injector having a low mass, high efficiency electromagnetic actuator and having an integral filter and dynamic adjustment assembly
US6499668B2 (en) 2000-12-29 2002-12-31 Siemens Automotive Corporation Modular fuel injector having a surface treatment on an impact surface of an electromagnetic actuator and having a terminal connector interconnecting an electromagnetic actuator with an electrical terminal
US6502770B2 (en) 2000-12-29 2003-01-07 Siemens Automotive Corporation Modular fuel injector having a snap-on orifice disk retainer and having a terminal connector interconnecting an electromagnetic actuator with an electrical terminal
US6508417B2 (en) * 2000-12-29 2003-01-21 Siemens Automotive Corporation Modular fuel injector having a snap-on orifice disk retainer and having a lift set sleeve
US6511003B2 (en) 2000-12-29 2003-01-28 Siemens Automotive Corporation Modular fuel injector having an integral or interchangeable inlet tube and having a terminal connector interconnecting an electromagnetic actuator with an electrical terminal
US6520421B2 (en) 2000-12-29 2003-02-18 Siemens Automotive Corporation Modular fuel injector having an integral filter and o-ring retainer
US6523761B2 (en) 2000-12-29 2003-02-25 Siemens Automotive Corporation Modular fuel injector having an integral or interchangeable inlet tube and having a lift set sleeve
US6523760B2 (en) 2000-12-29 2003-02-25 Siemens Automotive Corporation Modular fuel injector having interchangeable armature assemblies and having a terminal connector interconnecting an electromagnetic actuator with an electrical terminal
US6523756B2 (en) 2000-12-29 2003-02-25 Siemens Automotive Corporation Modular fuel injector having a low mass, high efficiency electromagnetic actuator and having a lift set sleeve
US6533188B1 (en) 2000-12-29 2003-03-18 Siemens Automotive Corporation Modular fuel injector having a snap-on orifice disk retainer and having an integral filter and dynamic adjustment assembly
US6536681B2 (en) 2000-12-29 2003-03-25 Siemens Automotive Corporation Modular fuel injector having a surface treatment on an impact surface of an electromagnetic actuator and having an integral filter and O-ring retainer assembly
US6543707B2 (en) 2000-12-29 2003-04-08 Siemens Automotive Corporation Modular fuel injector having a lift set sleeve
US6547154B2 (en) 2000-12-29 2003-04-15 Siemens Automotive Corporation Modular fuel injector having a terminal connector interconnecting an electromagnetic actuator with a pre-bent electrical terminal
US6550690B2 (en) 2000-12-29 2003-04-22 Siemens Automotive Corporation Modular fuel injector having interchangeable armature assemblies and having an integral filter and dynamic adjustment assembly
US6565019B2 (en) 2000-12-29 2003-05-20 Seimens Automotive Corporation Modular fuel injector having a snap-on orifice disk retainer and having an integral filter and O-ring retainer assembly
US6568609B2 (en) 2000-12-29 2003-05-27 Siemens Automotive Corporation Modular fuel injector having an integral or interchangeable inlet tube and having an integral filter and o-ring retainer assembly
US6607143B2 (en) 2000-12-29 2003-08-19 Siemens Automotive Corporation Modular fuel injector having a surface treatment on an impact surface of an electromagnetic actuator and having a lift set sleeve
US6655609B2 (en) 2000-12-29 2003-12-02 Siemens Automotive Corporation Modular fuel injector having a low mass, high efficiency electromagnetic actuator and having an integral filter and o-ring retainer assembly
US6676044B2 (en) 2000-04-07 2004-01-13 Siemens Automotive Corporation Modular fuel injector and method of assembling the modular fuel injector
US6676043B2 (en) 2001-03-30 2004-01-13 Siemens Automotive Corporation Methods of setting armature lift in a modular fuel injector
US6685112B1 (en) 1997-12-23 2004-02-03 Siemens Automotive Corporation Fuel injector armature with a spherical valve seat
US6687997B2 (en) 2001-03-30 2004-02-10 Siemens Automotive Corporation Method of fabricating and testing a modular fuel injector
US6695232B2 (en) 2000-12-29 2004-02-24 Siemens Automotive Corporation Modular fuel injector having interchangeable armature assemblies and having a lift set sleeve
US20040035956A1 (en) * 2000-12-29 2004-02-26 Siemens Automotive Corporation Modular fuel injector having a surface treatment on an impact surface of an electromagnetic actuator and having an integral filter and dynamic adjustment assembly
US6698664B2 (en) 2000-12-29 2004-03-02 Siemens Automotive Corporation Modular fuel injector having an integral or interchangeable inlet tube and having an integral filter and dynamic adjustment assembly
US6769636B2 (en) 2000-12-29 2004-08-03 Siemens Automotive Corporation Modular fuel injector having interchangeable armature assemblies and having an integral filter and O-ring retainer assembly
US6811091B2 (en) 2000-12-29 2004-11-02 Siemens Automotive Corporation Modular fuel injector having an integral filter and dynamic adjustment assembly
US20050045749A1 (en) * 2001-12-27 2005-03-03 Unisia Jecs Corporation Method of manufacturing a fuel injection valve
US6904668B2 (en) 2001-03-30 2005-06-14 Siemens Vdo Automotive Corp. Method of manufacturing a modular fuel injector
US7093362B2 (en) 2001-03-30 2006-08-22 Siemens Vdo Automotive Corporation Method of connecting components of a modular fuel injector
EP1609980A4 (de) * 2003-03-31 2006-09-27 Keihin Corp Elektromagnetisches kraftstoffeinspritzventil
US20120085450A1 (en) * 2010-10-08 2012-04-12 GM Global Technology Operations LLC Accumulator assembly
WO2014079646A1 (de) * 2012-11-26 2014-05-30 Bayerische Motoren Werke Aktiengesellschaft Einspritzvorrichtung für einen verbrennungsmotor
US20180045156A1 (en) * 2015-03-13 2018-02-15 Hitachi Automotive Systems, Ltd. Fuel injection valve
US11181052B2 (en) 2019-09-26 2021-11-23 Setaysha Technical Solutions, Llc Air-fuel metering for internal combustion reciprocating engines
US12460742B2 (en) 2017-11-01 2025-11-04 General Technologies Corp. Valve-diagnostic system and device

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2508390A1 (de) * 1975-02-26 1976-09-09 Bosch Gmbh Robert Einspritz-magnetventil
DE2936853A1 (de) * 1979-09-12 1981-04-02 Robert Bosch Gmbh, 7000 Stuttgart Elektromagnetisch betaetigbares ventil
DE3046889A1 (de) * 1980-12-12 1982-07-15 Robert Bosch Gmbh, 7000 Stuttgart Elektromagnetisch betaetigbares ventil, insbesondere kraftstoffeinspritzventil fuer kraftstoffeinspritzanlagen
US4564145A (en) * 1982-08-04 1986-01-14 Aisan Kogyo Kabushiki Kaisha Electromagnetic fuel injector
IT1152503B (it) * 1982-08-18 1987-01-07 Alfa Romeo Spa Elettroiniettore per un motore a c.i.
GB2136500A (en) * 1983-03-16 1984-09-19 Lucas Ind Plc Electromagnetic fuel injector
GB8307292D0 (en) * 1983-03-16 1983-04-20 Lucas Ind Plc Fuel injector
DE3623554A1 (de) * 1986-07-12 1988-01-21 Pierburg Gmbh Elektromagnetisches, intermittierendes einspritzventil
BE1002667A3 (fr) * 1988-12-22 1991-04-30 Rizzuto Raffaele Dispositif de protection pour chaussure de sport.
IT1240180B (it) * 1990-04-06 1993-11-27 Weber Srl Valvola dosatrice e polverizzatrice di carburante ad azionamento elettromagnetico per un dispositivo di alimentazione di un motore endotermico
CN1049951C (zh) * 1993-12-09 2000-03-01 罗伯特·博施有限公司 电磁操纵阀
RU2327897C1 (ru) * 2006-08-31 2008-06-27 ООО НПК "Базальт" Электромагнитная форсунка
RU2411391C1 (ru) * 2009-06-08 2011-02-10 Виктор Александрович Звягинцев Форсунка

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB702797A (en) * 1950-11-13 1954-01-20 Rudolf L Orange Improvements in or relating to fuel-injection nozzles for internal combustion engines
US2881980A (en) * 1957-05-10 1959-04-14 Bendix Aviat Corp Fuel injection nozzle
US3241768A (en) * 1963-05-01 1966-03-22 Ass Eng Ltd Fuel injection valves
US3301492A (en) * 1964-09-24 1967-01-31 Bendix Corp Variable area nozzle
US3329347A (en) * 1965-10-19 1967-07-04 Vitramon Inc Valved liquid ejector capable of emitting intermittent spurts

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB702797A (en) * 1950-11-13 1954-01-20 Rudolf L Orange Improvements in or relating to fuel-injection nozzles for internal combustion engines
US2881980A (en) * 1957-05-10 1959-04-14 Bendix Aviat Corp Fuel injection nozzle
US3241768A (en) * 1963-05-01 1966-03-22 Ass Eng Ltd Fuel injection valves
US3301492A (en) * 1964-09-24 1967-01-31 Bendix Corp Variable area nozzle
US3329347A (en) * 1965-10-19 1967-07-04 Vitramon Inc Valved liquid ejector capable of emitting intermittent spurts

Cited By (74)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3669361A (en) * 1969-08-01 1972-06-13 Sopromi Soc Proc Modern Inject Electromagnetic fuel injectors for internal combustion engines
US3735927A (en) * 1970-04-22 1973-05-29 Sopromi Soc Proc Modern Inject Electro magnetic injector
US3761023A (en) * 1970-09-25 1973-09-25 Sopromi Soc Proc Modern Inject Electromagnetic injectors for internal combustion engines
US3865312A (en) * 1972-01-06 1975-02-11 Renault Electromagnetically operated ball-type injectors
US4033513A (en) * 1975-11-06 1977-07-05 Allied Chemical Corporation Electromagnetically operated valve
DE3028742A1 (de) * 1979-08-03 1981-02-05 Alfa Romeo Spa Elektro-einspritzventil mit kurzen uebergangszustaenden
US4365747A (en) * 1979-09-08 1982-12-28 Robert Bosch Gmbh Electromagnetically actuatable fuel injection valve
US4982902A (en) * 1980-03-20 1991-01-08 Robert Bosch Gmbh Electromagnetically actuatable valve
US4387677A (en) * 1980-06-24 1983-06-14 Holt Lloyd S.A. Fuel, more especially auxiliary starting fuel, injectors for internal combustion engines and to auxiliary carburetors associable with such injectors
US4502632A (en) * 1980-12-12 1985-03-05 Robert Bosch Gmbh Electromagnetically actuatable valve, in particular a fuel injection valve for fuel injection systems
US4555060A (en) * 1981-05-13 1985-11-26 Robert Bosch Gmbh Electromagnetically actuated valve, in particular a fuel injection valve for fuel injection systems
US4678124A (en) * 1981-11-05 1987-07-07 Robert Bosch Gmbh Electromagnetically actuatable valve in particular a fuel injection valve
US4666088A (en) * 1984-03-28 1987-05-19 Robert Bosch Gmbh Fuel injection valve
DE3834447A1 (de) * 1988-10-10 1990-04-12 Mesenich Gerhard Elektromagnetisches einspritzventil und verfahren zu dessen herstellung
DE3834444A1 (de) * 1988-10-10 1990-04-12 Mesenich Gerhard Elektromagnetisches einspritzventil mit membranfeder
US5044563A (en) * 1988-10-10 1991-09-03 Siemens Automotive L. P. Electromagnetic fuel injector with diaphragm spring
US4984744A (en) * 1988-12-24 1991-01-15 Robert Bosch Gmbh Electromagnetically actuatable valve
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
WO1998042977A1 (de) * 1997-03-26 1998-10-01 Robert Bosch Gmbh Brennstoffeinspritzventil und verfahren zur herstellung sowie verwendung eines brennstoffeinspritzventils
US6027049A (en) * 1997-03-26 2000-02-22 Robert Bosch Gmbh Fuel-injection valve, method for producing a fuel-injection valve and use of the same
US5820099A (en) * 1997-05-20 1998-10-13 Siemens Automotive Corporation Fluid migration inhibitor for fuel injectors
US6685112B1 (en) 1997-12-23 2004-02-03 Siemens Automotive Corporation Fuel injector armature with a spherical valve seat
US6286770B1 (en) 1999-09-28 2001-09-11 MAGNETI MARELLI S.p.A. Fuel injection of an improved type
US6676044B2 (en) 2000-04-07 2004-01-13 Siemens Automotive Corporation Modular fuel injector and method of assembling the modular fuel injector
US7347383B2 (en) 2000-04-07 2008-03-25 Siemens Vdo Automotive Corporation Modular fuel injector and method of assembling the modular fuel injector
US6793162B2 (en) 2000-04-07 2004-09-21 Siemens Automotive Corporation Fuel injector and method of forming a hermetic seal for the fuel injector
US20040046066A1 (en) * 2000-04-07 2004-03-11 Siemens Automotive Corporation Modular fuel injector and method of assembling the modular fuel injector
US6481646B1 (en) 2000-09-18 2002-11-19 Siemens Automotive Corporation Solenoid actuated fuel injector
US6769176B2 (en) 2000-09-18 2004-08-03 Siemens Automotive Corporation Method of manufacturing a fuel injector
US6547154B2 (en) 2000-12-29 2003-04-15 Siemens Automotive Corporation Modular fuel injector having a terminal connector interconnecting an electromagnetic actuator with a pre-bent electrical terminal
US6499668B2 (en) 2000-12-29 2002-12-31 Siemens Automotive Corporation Modular fuel injector having a surface treatment on an impact surface of an electromagnetic actuator and having a terminal connector interconnecting an electromagnetic actuator with an electrical terminal
US6523760B2 (en) 2000-12-29 2003-02-25 Siemens Automotive Corporation Modular fuel injector having interchangeable armature assemblies and having a terminal connector interconnecting an electromagnetic actuator with an electrical terminal
US6523756B2 (en) 2000-12-29 2003-02-25 Siemens Automotive Corporation Modular fuel injector having a low mass, high efficiency electromagnetic actuator and having a lift set sleeve
US6533188B1 (en) 2000-12-29 2003-03-18 Siemens Automotive Corporation Modular fuel injector having a snap-on orifice disk retainer and having an integral filter and dynamic adjustment assembly
US6536681B2 (en) 2000-12-29 2003-03-25 Siemens Automotive Corporation Modular fuel injector having a surface treatment on an impact surface of an electromagnetic actuator and having an integral filter and O-ring retainer assembly
US6543707B2 (en) 2000-12-29 2003-04-08 Siemens Automotive Corporation Modular fuel injector having a lift set sleeve
US6520421B2 (en) 2000-12-29 2003-02-18 Siemens Automotive Corporation Modular fuel injector having an integral filter and o-ring retainer
US6550690B2 (en) 2000-12-29 2003-04-22 Siemens Automotive Corporation Modular fuel injector having interchangeable armature assemblies and having an integral filter and dynamic adjustment assembly
US6565019B2 (en) 2000-12-29 2003-05-20 Seimens Automotive Corporation Modular fuel injector having a snap-on orifice disk retainer and having an integral filter and O-ring retainer assembly
US6568609B2 (en) 2000-12-29 2003-05-27 Siemens Automotive Corporation Modular fuel injector having an integral or interchangeable inlet tube and having an integral filter and o-ring retainer assembly
US6607143B2 (en) 2000-12-29 2003-08-19 Siemens Automotive Corporation Modular fuel injector having a surface treatment on an impact surface of an electromagnetic actuator and having a lift set sleeve
US6655609B2 (en) 2000-12-29 2003-12-02 Siemens Automotive Corporation Modular fuel injector having a low mass, high efficiency electromagnetic actuator and having an integral filter and o-ring retainer assembly
US6499677B2 (en) 2000-12-29 2002-12-31 Siemens Automotive Corporation Modular fuel injector having a low mass, high efficiency electromagnetic actuator and having an integral filter and dynamic adjustment assembly
US6511003B2 (en) 2000-12-29 2003-01-28 Siemens Automotive Corporation Modular fuel injector having an integral or interchangeable inlet tube and having a terminal connector interconnecting an electromagnetic actuator with an electrical terminal
US6840500B2 (en) 2000-12-29 2005-01-11 Siemens Vdo Automotovie Corporation Modular fuel injector having a surface treatment on an impact surface of an electromagnetic actuator and having an integral filter and dynamic adjustment assembly
US6695232B2 (en) 2000-12-29 2004-02-24 Siemens Automotive Corporation Modular fuel injector having interchangeable armature assemblies and having a lift set sleeve
US20040035956A1 (en) * 2000-12-29 2004-02-26 Siemens Automotive Corporation Modular fuel injector having a surface treatment on an impact surface of an electromagnetic actuator and having an integral filter and dynamic adjustment assembly
US6698664B2 (en) 2000-12-29 2004-03-02 Siemens Automotive Corporation Modular fuel injector having an integral or interchangeable inlet tube and having an integral filter and dynamic adjustment assembly
US6508417B2 (en) * 2000-12-29 2003-01-21 Siemens Automotive Corporation Modular fuel injector having a snap-on orifice disk retainer and having a lift set sleeve
US6708906B2 (en) 2000-12-29 2004-03-23 Siemens Automotive Corporation Modular fuel injector having a surface treatment on an impact surface of an electromagnetic actuator and having an integral filter and dynamic adjustment assembly
US6502770B2 (en) 2000-12-29 2003-01-07 Siemens Automotive Corporation Modular fuel injector having a snap-on orifice disk retainer and having a terminal connector interconnecting an electromagnetic actuator with an electrical terminal
US6769636B2 (en) 2000-12-29 2004-08-03 Siemens Automotive Corporation Modular fuel injector having interchangeable armature assemblies and having an integral filter and O-ring retainer assembly
US6523761B2 (en) 2000-12-29 2003-02-25 Siemens Automotive Corporation Modular fuel injector having an integral or interchangeable inlet tube and having a lift set sleeve
US6811091B2 (en) 2000-12-29 2004-11-02 Siemens Automotive Corporation Modular fuel injector having an integral filter and dynamic adjustment assembly
US6687997B2 (en) 2001-03-30 2004-02-10 Siemens Automotive Corporation Method of fabricating and testing a modular fuel injector
US6904668B2 (en) 2001-03-30 2005-06-14 Siemens Vdo Automotive Corp. Method of manufacturing a modular fuel injector
US7093362B2 (en) 2001-03-30 2006-08-22 Siemens Vdo Automotive Corporation Method of connecting components of a modular fuel injector
US6676043B2 (en) 2001-03-30 2004-01-13 Siemens Automotive Corporation Methods of setting armature lift in a modular fuel injector
US20050045749A1 (en) * 2001-12-27 2005-03-03 Unisia Jecs Corporation Method of manufacturing a fuel injection valve
US7204433B2 (en) * 2001-12-27 2007-04-17 Unisia Jecs Corporation Method of manufacturing a fuel injection valve
EP1609980A4 (de) * 2003-03-31 2006-09-27 Keihin Corp Elektromagnetisches kraftstoffeinspritzventil
US20060273274A1 (en) * 2003-03-31 2006-12-07 Takahiro Nagaoka Electromagnetic fuel injection valve
CN100436805C (zh) * 2003-03-31 2008-11-26 株式会社京浜 电磁式燃料喷射阀
US8567444B2 (en) * 2010-10-08 2013-10-29 GM Global Technology Operations LLC Accumulator assembly
US20120085450A1 (en) * 2010-10-08 2012-04-12 GM Global Technology Operations LLC Accumulator assembly
WO2014079646A1 (de) * 2012-11-26 2014-05-30 Bayerische Motoren Werke Aktiengesellschaft Einspritzvorrichtung für einen verbrennungsmotor
CN104685199A (zh) * 2012-11-26 2015-06-03 宝马股份公司 用于内燃机的喷射装置
CN104685199B (zh) * 2012-11-26 2017-06-27 宝马股份公司 用于内燃机的喷射装置
US9790907B2 (en) 2012-11-26 2017-10-17 Bayerische Motoren Werke Aktiengesellschaft Injection device for an internal combustion engine
US20180045156A1 (en) * 2015-03-13 2018-02-15 Hitachi Automotive Systems, Ltd. Fuel injection valve
US10247158B2 (en) * 2015-03-13 2019-04-02 Hitachi Automotive Systems, Ltd. Fuel injection valve
US12460742B2 (en) 2017-11-01 2025-11-04 General Technologies Corp. Valve-diagnostic system and device
US11181052B2 (en) 2019-09-26 2021-11-23 Setaysha Technical Solutions, Llc Air-fuel metering for internal combustion reciprocating engines
US12104544B2 (en) 2019-09-26 2024-10-01 Setaysha Technical Solutions LLC Air-fuel metering for internal combustion reciprocating engines

Also Published As

Publication number Publication date
SE350305B (de) 1972-10-23
FR1596356A (de) 1970-06-15
GB1249357A (en) 1971-10-13
DE1601395A1 (de) 1970-10-29
CH475475A (de) 1969-07-15

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