EP1970557A3 - Valve for fuel injectors - Google Patents

Valve for fuel injectors Download PDF

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Publication number
EP1970557A3
EP1970557A3 EP08100935A EP08100935A EP1970557A3 EP 1970557 A3 EP1970557 A3 EP 1970557A3 EP 08100935 A EP08100935 A EP 08100935A EP 08100935 A EP08100935 A EP 08100935A EP 1970557 A3 EP1970557 A3 EP 1970557A3
Authority
EP
European Patent Office
Prior art keywords
valve
fuel injectors
armature assembly
actuating member
solenoid valve
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.)
Withdrawn
Application number
EP08100935A
Other languages
German (de)
French (fr)
Other versions
EP1970557A2 (en
Inventor
Friedrich Boecking
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 EP1970557A2 publication Critical patent/EP1970557A2/en
Publication of EP1970557A3 publication Critical patent/EP1970557A3/en
Withdrawn legal-status Critical Current

Links

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
    • 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
    • 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
    • F02M63/007—Details not provided for in, or of interest apart from, the apparatus of the groups F02M63/0014 - F02M63/0059
    • 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
    • F02M63/007—Details not provided for in, or of interest apart from, the apparatus of the groups F02M63/0014 - F02M63/0059
    • F02M63/0075—Stop members in valves, e.g. plates or disks limiting the movement of armature, valve or spring
    • 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
    • F02M63/007—Details not provided for in, or of interest apart from, the apparatus of the groups F02M63/0014 - F02M63/0059
    • F02M63/0078—Valve member details, e.g. special shape, hollow or fuel passages in the valve member
    • 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
    • F02M2547/00—Special features for fuel-injection valves actuated by fluid pressure
    • F02M2547/001—Control chambers formed by movable sleeves

Abstract

Kraftstoffinjektor (10) mit einem Haltekörper (12), mit einem Düsenkörper (20), in dem ein mittels eines Betätigungsorgans (26), insbesondere mittels eines Magnetventiles, betätigbares bevorzugt nadelförmig ausgebildetes Einspritzventilglied (24) aufgenommen ist, mit einer Ankerbaugruppe (44), die über das Betätigungsorgan (26), insbesondere ein Magnetventil betätigbar ist, welches die Druckentlastung oder Druckbeaufschlagung eines Steuerraums (64) steuert, dadurch gekennzeichnet, dass in die Ankerbaugruppe (44) ein mit mindestens einem Sitz (50, 82) zusammenwirkendes Ventilelement (48) integriert ist.

Figure imgaf001
Fuel injector (10) with a holding body (12), with a nozzle body (20), in which a by means of an actuating member (26), in particular by means of a solenoid valve, actuated preferably needle-shaped injection valve member (24) is received, with an armature assembly (44) , which can be actuated via the actuating member (26), in particular a solenoid valve, which controls the pressure relief or pressurization of a control chamber (64), characterized in that in the armature assembly (44) a valve element cooperating with at least one seat (50, 82) ( 48) is integrated.
Figure imgaf001
EP08100935A 2007-03-16 2008-01-25 Valve for fuel injectors Withdrawn EP1970557A3 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE200710012706 DE102007012706A1 (en) 2007-03-16 2007-03-16 Valve for fuel injectors

Publications (2)

Publication Number Publication Date
EP1970557A2 EP1970557A2 (en) 2008-09-17
EP1970557A3 true EP1970557A3 (en) 2009-08-26

Family

ID=39387454

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08100935A Withdrawn EP1970557A3 (en) 2007-03-16 2008-01-25 Valve for fuel injectors

Country Status (2)

Country Link
EP (1) EP1970557A3 (en)
DE (1) DE102007012706A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102018122250A1 (en) * 2018-09-12 2020-03-12 Liebherr-Components Deggendorf Gmbh Fuel injector valve

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0753658A1 (en) * 1995-07-14 1997-01-15 ELASIS SISTEMA RICERCA FIAT NEL MEZZOGIORNO Società Consortile per Azioni Improved electromagnetic metering valve for a fuel injector
EP1081372A2 (en) * 1999-08-31 2001-03-07 Denso Corporation Fuel injection device
WO2004048769A1 (en) * 2002-11-23 2004-06-10 Robert Bosch Gmbh Fuel injection device with a 3-way control valve for configuring the injection process

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19650865A1 (en) 1996-12-07 1998-06-10 Bosch Gmbh Robert magnetic valve
DE19708104A1 (en) 1997-02-28 1998-09-03 Bosch Gmbh Robert magnetic valve

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0753658A1 (en) * 1995-07-14 1997-01-15 ELASIS SISTEMA RICERCA FIAT NEL MEZZOGIORNO Società Consortile per Azioni Improved electromagnetic metering valve for a fuel injector
EP1081372A2 (en) * 1999-08-31 2001-03-07 Denso Corporation Fuel injection device
WO2004048769A1 (en) * 2002-11-23 2004-06-10 Robert Bosch Gmbh Fuel injection device with a 3-way control valve for configuring the injection process

Also Published As

Publication number Publication date
DE102007012706A1 (en) 2008-09-18
EP1970557A2 (en) 2008-09-17

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