EP1390614B1 - Magnetventil zur steuerung eines einspritzventils einer brennkraftmaschine - Google Patents

Magnetventil zur steuerung eines einspritzventils einer brennkraftmaschine Download PDF

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Publication number
EP1390614B1
EP1390614B1 EP02729870A EP02729870A EP1390614B1 EP 1390614 B1 EP1390614 B1 EP 1390614B1 EP 02729870 A EP02729870 A EP 02729870A EP 02729870 A EP02729870 A EP 02729870A EP 1390614 B1 EP1390614 B1 EP 1390614B1
Authority
EP
European Patent Office
Prior art keywords
armature
valve
stop
solenoid valve
plate
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
EP02729870A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP1390614A1 (de
Inventor
Holger Rapp
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 EP1390614A1 publication Critical patent/EP1390614A1/de
Application granted granted Critical
Publication of EP1390614B1 publication Critical patent/EP1390614B1/de
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
    • F02M47/00—Fuel-injection apparatus operated cyclically with fuel-injection valves actuated by fluid pressure
    • F02M47/02—Fuel-injection apparatus operated cyclically with fuel-injection valves actuated by fluid pressure of accumulator-injector type, i.e. having fuel pressure of accumulator tending to open, and fuel pressure in other chamber tending to close, injection valves and having means for periodically releasing that closing pressure
    • F02M47/027—Electrically actuated valves draining the chamber to release the closing pressure
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M63/00—Other fuel-injection apparatus having pertinent characteristics not provided for in groups F02M39/00 - F02M57/00 or F02M67/00; Details, component parts, or accessories of fuel-injection apparatus, not provided for in, or of interest apart from, the apparatus of groups F02M39/00 - F02M61/00 or F02M67/00; Combination of fuel pump with other devices, e.g. lubricating oil pump
    • F02M63/0012—Valves
    • F02M63/0014—Valves characterised by the valve actuating means
    • F02M63/0015—Valves characterised by the valve actuating means electrical, e.g. using solenoid
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M63/00—Other fuel-injection apparatus having pertinent characteristics not provided for in groups F02M39/00 - F02M57/00 or F02M67/00; Details, component parts, or accessories of fuel-injection apparatus, not provided for in, or of interest apart from, the apparatus of groups F02M39/00 - F02M61/00 or F02M67/00; Combination of fuel pump with other devices, e.g. lubricating oil pump
    • F02M63/0012—Valves
    • F02M63/0014—Valves characterised by the valve actuating means
    • F02M63/0015—Valves characterised by the valve actuating means electrical, e.g. using solenoid
    • F02M63/0017—Valves characterised by the valve actuating means electrical, e.g. using solenoid using electromagnetic operating means
    • F02M63/0021—Valves characterised by the valve actuating means electrical, e.g. using solenoid using electromagnetic operating means characterised by the arrangement of mobile armatures
    • F02M63/0022—Valves characterised by the valve actuating means electrical, e.g. using solenoid using electromagnetic operating means characterised by the arrangement of mobile armatures the armature and the valve being allowed to move relatively to each other
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M63/00—Other fuel-injection apparatus having pertinent characteristics not provided for in groups F02M39/00 - F02M57/00 or F02M67/00; Details, component parts, or accessories of fuel-injection apparatus, not provided for in, or of interest apart from, the apparatus of groups F02M39/00 - F02M61/00 or F02M67/00; Combination of fuel pump with other devices, e.g. lubricating oil pump
    • F02M63/0012—Valves
    • F02M63/0031—Valves characterized by the type of valves, e.g. special valve member details, valve seat details, valve housing details
    • F02M63/004—Sliding valves, e.g. spool valves, i.e. whereby the closing member has a sliding movement along a seat for opening and closing
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M63/00—Other fuel-injection apparatus having pertinent characteristics not provided for in groups F02M39/00 - F02M57/00 or F02M67/00; Details, component parts, or accessories of fuel-injection apparatus, not provided for in, or of interest apart from, the apparatus of groups F02M39/00 - F02M61/00 or F02M67/00; Combination of fuel pump with other devices, e.g. lubricating oil pump
    • F02M63/0012—Valves
    • F02M63/0031—Valves characterized by the type of valves, e.g. special valve member details, valve seat details, valve housing details
    • F02M63/004—Sliding valves, e.g. spool valves, i.e. whereby the closing member has a sliding movement along a seat for opening and closing
    • F02M63/0042—Sliding valves, e.g. spool valves, i.e. whereby the closing member has a sliding movement along a seat for opening and closing combined with valve seats of the lift valve type
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M63/00—Other fuel-injection apparatus having pertinent characteristics not provided for in groups F02M39/00 - F02M57/00 or F02M67/00; Details, component parts, or accessories of fuel-injection apparatus, not provided for in, or of interest apart from, the apparatus of groups F02M39/00 - F02M61/00 or F02M67/00; Combination of fuel pump with other devices, e.g. lubricating oil pump
    • F02M63/0012—Valves
    • F02M63/0031—Valves characterized by the type of valves, e.g. special valve member details, valve seat details, valve housing details
    • F02M63/0043—Two-way valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M63/00—Other fuel-injection apparatus having pertinent characteristics not provided for in groups F02M39/00 - F02M57/00 or F02M67/00; Details, component parts, or accessories of fuel-injection apparatus, not provided for in, or of interest apart from, the apparatus of groups F02M39/00 - F02M61/00 or F02M67/00; Combination of fuel pump with other devices, e.g. lubricating oil pump
    • F02M63/02—Fuel-injection apparatus having several injectors fed by a common pumping element, or having several pumping elements feeding a common injector; Fuel-injection apparatus having provisions for cutting-out pumps, pumping elements, or injectors; Fuel-injection apparatus having provisions for variably interconnecting pumping elements and injectors alternatively
    • F02M63/0205—Fuel-injection apparatus having several injectors fed by a common pumping element, or having several pumping elements feeding a common injector; Fuel-injection apparatus having provisions for cutting-out pumps, pumping elements, or injectors; Fuel-injection apparatus having provisions for variably interconnecting pumping elements and injectors alternatively for cutting-out pumps or injectors in case of abnormal operation of the engine or the injection apparatus, e.g. over-speed, break-down of fuel pumps or injectors ; for cutting-out pumps for stopping the engine
    • F02M63/022—Fuel-injection apparatus having several injectors fed by a common pumping element, or having several pumping elements feeding a common injector; Fuel-injection apparatus having provisions for cutting-out pumps, pumping elements, or injectors; Fuel-injection apparatus having provisions for variably interconnecting pumping elements and injectors alternatively for cutting-out pumps or injectors in case of abnormal operation of the engine or the injection apparatus, e.g. over-speed, break-down of fuel pumps or injectors ; for cutting-out pumps for stopping the engine by acting on fuel control mechanism
    • 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
    • F02M2200/30—Fuel-injection apparatus having mechanical parts, the movement of which is damped
    • F02M2200/304—Fuel-injection apparatus having mechanical parts, the movement of which is damped using hydraulic 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
    • F02M2200/00—Details of fuel-injection apparatus, not otherwise provided for
    • F02M2200/30—Fuel-injection apparatus having mechanical parts, the movement of which is damped
    • F02M2200/306—Fuel-injection apparatus having mechanical parts, the movement of which is damped using mechanical means

Definitions

  • the invention relates to a solenoid valve for controlling a Injection valve of an internal combustion engine according to the generic term of claim 1.
  • Solenoid valve is used to control the fuel pressure in the Control pressure chamber of an injection valve, for example one Injector of a common rail injection system used. at such injectors will check the fuel pressure controlled the movement of a valve piston in the control pressure chamber, with which an injection opening of the injection valve is opened or is closed.
  • the well-known solenoid valve has an electromagnet arranged in a housing part, a movable anchor and one moved with the anchor, acted upon by a closing spring in the closing direction Control valve member on that with a valve seat of the solenoid valve cooperates and so the fuel flow from the Control pressure room controls.
  • Solenoid valve known from DE 196 50 865 A1 is therefore the anchor in two parts with an anchor bolt and one on the Anchor bolt designed with slidingly mounted anchor plate, so that the anchor plate upon impact of the control valve member on the valve seat against the clamping force of one Return spring moved on.
  • the return spring conveys the Then anchor plate back to its defined starting position at a stop fixed to the anchor bolt back. This ensures that when you switch on again of the electromagnet the armature plate is always the same, defined predetermined distance is tightened.
  • This short opening does not lead to a significant one Pressure drop in the control pressure chamber of the injection valve and thus to an unintentional injection, but may during this short phase with the activation of the electromagnet be started for the next injection, since this is the amount of fuel in the combustion chamber of the internal combustion engine influence the injected fuel in an undefined manner would and strong scatter of the injection quantity would result.
  • Activation of the solenoid valve therefore leads only then reliably again to a defined injection quantity, when the anchor plate no longer swings.
  • a time limitation of the ringing process is particularly important to show short time intervals between for example a pre-injection and a main injection of great importance.
  • the armature plate turns on when the electromagnet is turned on so quickly dressed that they are practically undetectable Time delay the stop defined on the anchor bolt reached. Then the anchor plate and anchor bolt accelerated with control valve member to the electromagnet and opened the solenoid valve. This is advantageous achieved that by the ringing process of the anchor plate conditional unwanted opening of the solenoid valve is avoided.
  • the solenoid valve can therefore at any time after the Anchor plate has reached its overstroke, again driven become.
  • Fig. 1 shows the upper part of a from the prior art known fuel injection valve, which for use is determined in a fuel injection system, in particular a common rail system for diesel fuel, which with a high-pressure fuel storage is equipped by a high pressure feed pump continuously with high pressure fuel is supplied.
  • the well-known fuel injector has a valve housing 4 with a longitudinal bore in which a valve piston 6 is arranged, with its one in Fig. 1 not shown end on a in a nozzle body arranged valve needle acts.
  • the valve needle is in one Pressure chamber arranged with a pressure hole with under High-pressure fuel is supplied.
  • valve piston 6 With an opening stroke movement the valve piston 6 becomes the valve needle due to the constant attack on a pressure shoulder of the valve needle High fuel pressure in the pressure chamber against Closing force of a spring raised. Through a then with the Injection takes place in the pressure chamber connected to the injection of the fuel in the combustion chamber of the internal combustion engine. By Lowering the valve piston 6 becomes the valve needle in the closing direction pressed into the valve seat of the injection valve and the injection process ends.
  • the valve piston 6 is on his end facing away from the valve needle in a cylinder bore guided, which is introduced into a valve piece 12, which is inserted into the valve housing 4. In the cylinder bore closes the end face of the valve piston 6 Control pressure chamber 14, which via an inlet channel with a High-pressure fuel connection, not shown, is connected.
  • the inlet channel is essentially made up of three parts.
  • Via the inlet throttle 15 is the control pressure chamber 14 that in the high-pressure fuel accumulator exposed to high fuel pressure.
  • Coaxial to Valve piston 6 branches out of control pressure chamber 14 in the valve piece 12 running bore, one with a flow restrictor 18 provided fuel drain channel 17, the opens into a relief chamber 19, which with a in Fig. 1st Fuel pressure connection, not shown, connected which is in turn with a fuel return of the injection valve communicates.
  • the outlet of the fuel drain channel 17 from the valve piece 12 takes place in the area of a conically countersunk part 21 of the outer Face of the valve piece 12.
  • the valve piece 12 is together with a shim 38 and the flange 32 one Slider 34 fixed via a screw member 23 in the valve housing 4 clamped.
  • a valve seat 24 is formed in the conical part 21, with which a control valve member 25 of the injection valve controlling solenoid valve 30 cooperates.
  • the control valve member 25 is in shape with a two-part anchor an anchor bolt 27 and an anchor plate 28 coupled, which armature with an electromagnet 29 of the solenoid valve 30 interacts.
  • the solenoid valve 30 further includes a the electromagnet 29 housing part 60, which with the Valve housing 4 fixed via screwable connection means 7 connected is.
  • the anchor plate 28 under the influence of their inertial mass against the preload a return spring 35 is dynamically displaceable the anchor bolt 27 and is supported by this return spring at rest against one fixed on the anchor bolt Stop 26 pressed, which in the form of a on the anchor bolt pushed-on sickle disc is formed. With your the other end, the return spring 35 is supported on the Flange 32 of the slider 34 from which the anchor bolt 27th leads in a through opening.
  • the anchor bolt 27 and with him the armature disk 28 and that coupled to the anchor bolt 27 Control valve member 25 are constantly by themselves Supporting closing spring 31 in the closing direction acts so that the control valve member 25 normally is in the closed position on the valve seat 24.
  • the anchor bolt 27 points to the one facing away from the electromagnet 29 End of an annular shoulder 33 which, when the electromagnet is excited strikes the slider 34 and so the opening stroke of the control valve member 25 limited.
  • the adjusting disk 38 serves for the opening stroke.
  • the opening and closing of the injection valve is as follows described controlled by the solenoid valve 30. How already shown, the anchor bolt 27 is constantly through the closing spring 31 is acted upon in the closing direction, so that the control valve member 25 when the solenoid is not energized is in the closed position on the valve seat 24 and the control pressure chamber 14 is closed towards the discharge side 19, so that there is very high the inlet channel Builds up pressure that is also present in the high-pressure fuel reservoir.
  • the pressure in the control pressure chamber 14 generates a closing force on the valve piston 6 and in connection therewith standing valve needle, which is larger than that on the other hand in Opening direction due to the high pressure Forces.
  • the control pressure chamber 14 by opening the Solenoid valve opened to the relief side 19, builds the pressure in the small volume of the control pressure chamber 14 very quickly, since this via the inlet throttle 15 from the high pressure side is decoupled. As a result, predominates the force acting on the valve needle in the opening direction from the high fuel pressure at the valve needle, so that the valve needle moves up and at least the an injection opening opened for injection becomes.
  • solenoid valve 30 closes the fuel drain passage 17, the pressure in the control pressure chamber 14 through the fuel flowing in again via the inlet duct 15 be built up so that the original closing force is applied and the valve needle of the fuel injector closes.
  • overstroke stop in the known solenoid valve 37 provided which through one of the anchor plate facing end portion of a guide sleeve Section of the slider 34 is formed.
  • the overstroke 37 limits the maximum overtravel distance by which the anchor plate 28 after the impact of the control valve member 25 on the valve seat 24 along the anchor bolt 27 starting from the stop fixed on the anchor bolt 27 26 can move.
  • the rocking of the anchor plate 28 is reduced by the overstroke stop 37 and the anchor plate 28 returns to its starting position faster the stop 26 designed as a sickle disk.
  • the stroke of the anchor plate is dependent represented by the time when the solenoid valve is opened.
  • the anchor plate 28 then moves in the time interval I continue the overtravel until it reaches a maximum Overtravel h2 of, for example, about 20 microns hits the overstroke stop 37 and is braked there.
  • time interval II becomes the anchor plate through the return spring 35 back to the sickle disk 26 emotional.
  • the solenoid valve therefore opens briefly.
  • the Vibration process of the anchor plate leads to that with a renewed activation of the solenoid valve in time interval III must not be started because the solenoid valve in this Time interval opens briefly.
  • the control of the solenoid valve by applying voltage to the electromagnet either only beforehand in time interval II or later in time interval IV done.
  • Fig. 3 is a section of a cross-sectional view of the solenoid valve according to the invention.
  • the invention Solenoid valve 30 differs from that in Fig. 1 shown known solenoid valve in that none Return spring is provided on the solenoid valve.
  • the electromagnet 29 When switching off the electromagnet 29 is the armature with armature plate 28, Anchor bolt 27 and control valve member 25 by the closing spring 31 moved to the valve seat 24. Once the control valve member meets the valve seat 24, the armature plate 28 moves due to their inert mass on the now fixed anchor bolt further. This movement of the anchor plate 28 is subject only the laws of inertia, gravity, friction and the hydrodynamics of the fuel and is free of one Restoring elastic spring force.
  • FIG Fig. 4 The resulting movement of the anchor plate 28 is shown in FIG Fig. 4 shown.
  • the anchor plate 28 moves in the Time interval I first with the anchor bolt around the opening stroke h1 and then after impacting the control valve member on the valve seat with a fixed anchor bolt around the Overtravel distance h2 to overtravel stop 37.
  • the Anchor plate 28 Approaching the overstroke stop 37 annular surface 39 formed on the anchor plate 28 forms over the anchor bolt 27 pushed socket 40 a hydraulic together with the overstroke stop 37 Damping room through which the impact of the anchor plate 28 is damped on the overstroke.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Electromagnetism (AREA)
  • Fuel-Injection Apparatus (AREA)
EP02729870A 2001-05-12 2002-04-17 Magnetventil zur steuerung eines einspritzventils einer brennkraftmaschine Expired - Lifetime EP1390614B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10123171A DE10123171A1 (de) 2001-05-12 2001-05-12 Magnetventil zur Steuerung eines Einspritzventils einer Brennkraftmaschine
DE10123171 2001-05-12
PCT/DE2002/001418 WO2002092991A1 (de) 2001-05-12 2002-04-17 Magnetventil zur steuerung eines einspritzventils einer brennkraftmaschine

Publications (2)

Publication Number Publication Date
EP1390614A1 EP1390614A1 (de) 2004-02-25
EP1390614B1 true EP1390614B1 (de) 2004-10-06

Family

ID=7684568

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02729870A Expired - Lifetime EP1390614B1 (de) 2001-05-12 2002-04-17 Magnetventil zur steuerung eines einspritzventils einer brennkraftmaschine

Country Status (6)

Country Link
US (1) US6997432B2 (es)
EP (1) EP1390614B1 (es)
JP (1) JP4058349B2 (es)
DE (2) DE10123171A1 (es)
ES (1) ES2229143T3 (es)
WO (1) WO2002092991A1 (es)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7156368B2 (en) * 2004-04-14 2007-01-02 Cummins Inc. Solenoid actuated flow controller valve
US20060138374A1 (en) * 2004-04-14 2006-06-29 Lucas Michael A Solenoid actuated flow control valve including adjustable spacer
DE102005053115A1 (de) * 2005-11-08 2007-05-10 Robert Bosch Gmbh Optimierte Ankergruppenführung für Magnetventile
DE102005058302A1 (de) * 2005-12-07 2007-06-14 Robert Bosch Gmbh Verformungsoptimierte Ankerführung für Magnetventile
DE102006041977A1 (de) 2006-09-07 2008-03-27 Robert Bosch Gmbh Injektor zum Einspritzen von Kraftstoff
US20080081632A1 (en) * 2006-09-29 2008-04-03 Symbol Technologies, Inc. Methods and apparatus for defining, storing, and identifying key performance indicators associated with an RF network
ATE423901T1 (de) * 2006-10-24 2009-03-15 Fiat Ricerche Magnetdosierventil für ein brennstoffeinspritzventil
DE102007060396A1 (de) 2007-12-03 2009-06-04 Robert Bosch Gmbh Mechanische Löschung von Schließprellern bei Einspritzdüsen
US8689772B2 (en) * 2011-05-19 2014-04-08 Caterpillar Inc. Fuel injector with telescoping armature overtravel feature
US9359985B2 (en) 2014-09-04 2016-06-07 Caterpillar Inc. Fluid injector actuator with resilient armature overtravel feature
US10180106B2 (en) 2016-05-17 2019-01-15 Hamilton Sundstrand Corporation Solenoids for gas turbine engine bleed valves
US20220218086A1 (en) * 2019-05-22 2022-07-14 Atech S.R.L. Tamper-proof bag and security system therefor
US11603815B1 (en) * 2021-11-04 2023-03-14 Standard Motor Products, Inc. Modular armature-needle assembly for fuel injectors
DE102022202027A1 (de) * 2022-02-28 2023-08-31 Robert Bosch Gesellschaft mit beschränkter Haftung Verfahren zur Ansteuerung eines elektromagnetisch ansteuerbaren Gasventils, Steuergerät

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT227711Y1 (it) * 1992-12-29 1997-12-15 Elasis Sistema Ricerca Fiat Valvola di dosaggio a comando elettromagnetico per un iniettore di combustibile
US6068010A (en) * 1995-06-09 2000-05-30 Marotta Scientific Controls, Inc. Microvalve and microthruster for satellites and methods of making and using the same
DE19650865A1 (de) * 1996-12-07 1998-06-10 Bosch Gmbh Robert Magnetventil
IT239878Y1 (it) * 1996-12-23 2001-03-13 Elasis Sistema Ricerca Fiat Perfezionamenti ad una valvola di dosaggio a comando elettromagneticoper un iniettore di combustibile.
DE19708104A1 (de) 1997-02-28 1998-09-03 Bosch Gmbh Robert Magnetventil
DE19820341C2 (de) * 1998-05-07 2000-04-06 Daimler Chrysler Ag Betätigungsvorrichtung für eine Hochdruck-Einspritzdüse für flüssige Einspritzmedien
DE19832826C2 (de) 1998-07-21 2000-08-17 Bosch Gmbh Robert Montageverfahren für Kraftstoff-Einspritzventil und Vorsteuerventil sowie Kraftstoff-Einspritzventil
UA67804C2 (uk) * 1998-10-02 2004-07-15 Роналд Нортедж Клапан
DE29905883U1 (de) * 1999-03-31 1999-06-17 Festo AG & Co, 73734 Esslingen Elektromagnetische Antriebsvorrichtung
DE10131201A1 (de) * 2001-06-28 2003-01-16 Bosch Gmbh Robert Magnetventil zur Steuerung eines Einspritzventils einer Brennkraftmaschine

Also Published As

Publication number Publication date
WO2002092991A1 (de) 2002-11-21
ES2229143T3 (es) 2005-04-16
JP4058349B2 (ja) 2008-03-05
JP2004519609A (ja) 2004-07-02
US6997432B2 (en) 2006-02-14
DE50201241D1 (de) 2004-11-11
EP1390614A1 (de) 2004-02-25
DE10123171A1 (de) 2002-11-14
US20040026644A1 (en) 2004-02-12

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