EP2386746A3 - Kraftstoffinjektor - Google Patents

Kraftstoffinjektor Download PDF

Info

Publication number
EP2386746A3
EP2386746A3 EP11165102A EP11165102A EP2386746A3 EP 2386746 A3 EP2386746 A3 EP 2386746A3 EP 11165102 A EP11165102 A EP 11165102A EP 11165102 A EP11165102 A EP 11165102A EP 2386746 A3 EP2386746 A3 EP 2386746A3
Authority
EP
European Patent Office
Prior art keywords
valve member
injection valve
active surface
hydraulic
hydraulic active
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
EP11165102A
Other languages
English (en)
French (fr)
Other versions
EP2386746A2 (de
EP2386746B1 (de
Inventor
Armin Schuelke
Olaf Ohlhafer
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 EP2386746A2 publication Critical patent/EP2386746A2/de
Publication of EP2386746A3 publication Critical patent/EP2386746A3/de
Application granted granted Critical
Publication of EP2386746B1 publication Critical patent/EP2386746B1/de
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • 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
    • 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
    • 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
    • F02M51/0685—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 and the valve being allowed to move relatively to each other or not being attached 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
    • F02M2200/00—Details of fuel-injection apparatus, not otherwise provided for
    • F02M2200/70—Linkage between actuator and actuated element, e.g. between piezoelectric actuator and needle valve or pump plunger
    • F02M2200/701—Linkage between actuator and actuated element, e.g. between piezoelectric actuator and needle valve or pump plunger mechanical
    • 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
    • F02M2200/70—Linkage between actuator and actuated element, e.g. between piezoelectric actuator and needle valve or pump plunger
    • F02M2200/703—Linkage between actuator and actuated element, e.g. between piezoelectric actuator and needle valve or pump plunger hydraulic
    • 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

Landscapes

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

Abstract

Die Erfindung betrifft einen Kraftstoffinjektor zum Einspritzen von Kraftstoff in einen Brennraum einer Brennkraftmaschine mit einem Magnetaktor (1) zur direkten Steuerung eines vorzugsweise nadelförmigen Einspritzventilgliedes (2), über dessen Hubbewegung wenigstens eine Einspritzöffnung (3) des Kraftstoffinjektors freigebbar und verschließbar ist, wobei der Magnetaktor (1) ein hubbewegliches Ankerelement (4), zur Steuerung des Steuerdrucks in einem Steuervolumen (5) umfasst, das in axialer Richtung von einer am Einspritzventilglied (2) ausgebildeten hydraulischen Wirkfläche A1 begrenzt wird.
Erfindungsgemäß wird vorgeschlagen, dass der hydraulischen Wirkfläche A1 des Einspritzventilgliedes (2) innerhalb einer das Einspritzventilglied (2) zumindest teilweise aufnehmenden Führungsbohrung (6) sowohl eine am Ankerelement (4) ausgebildete hydraulische Wirkfläche A2, als auch eine an einem hydraulischen Übersetzer (7) ausgebildete hydraulische Wirkfläche A3 gegenüberliegt, welche mit der hydraulischen Wirkfläche A1 des Einspritzventilgliedes (2) über das Steuervolumen (5) hydraulisch koppelbar sind, wobei die hydraulische Wirkfläche A3 zugleich als Anschlagfläche (8) ausgebildet ist und eine mechanische Kopplung des hydraulischen Übersetzers (7) mit dem Einspritzventilglied (2) ermöglicht.
EP20110165102 2010-05-11 2011-05-06 Kraftstoffinjektor Not-in-force EP2386746B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE201010028835 DE102010028835A1 (de) 2010-05-11 2010-05-11 Kraftstoffinjektor

Publications (3)

Publication Number Publication Date
EP2386746A2 EP2386746A2 (de) 2011-11-16
EP2386746A3 true EP2386746A3 (de) 2013-02-20
EP2386746B1 EP2386746B1 (de) 2014-09-03

Family

ID=44484768

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20110165102 Not-in-force EP2386746B1 (de) 2010-05-11 2011-05-06 Kraftstoffinjektor

Country Status (2)

Country Link
EP (1) EP2386746B1 (de)
DE (1) DE102010028835A1 (de)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102010044205A1 (de) * 2010-11-22 2012-05-24 Robert Bosch Gmbh Kraftstoffinjektor
DE102011002422A1 (de) * 2011-01-04 2012-07-05 Robert Bosch Gmbh Einspritzventil zum Einspritzen eines Fluids
DE102012210220A1 (de) * 2012-06-18 2013-12-19 Robert Bosch Gmbh Kraftstoffinjektor mit direkt gesteuerter Düsennadel
DE102012222043A1 (de) 2012-12-03 2014-06-05 Robert Bosch Gmbh Kraftstoffinjektor
DE102012222127A1 (de) 2012-12-04 2014-06-05 Robert Bosch Gmbh Kraftstoffinjektor
DE102013210744A1 (de) 2013-06-10 2014-12-11 Robert Bosch Gmbh Kraftstoffinjektor
DE102013221534A1 (de) 2013-10-23 2015-04-23 Robert Bosch Gmbh Kraftstoffinjektor
DE102013221484A1 (de) 2013-10-23 2015-04-23 Robert Bosch Gmbh Kraftstoffinjektor
DE102015209505A1 (de) 2015-05-22 2016-11-24 Robert Bosch Gmbh Kraftstoffinjektor
DE102015209395A1 (de) 2015-05-22 2016-11-24 Robert Bosch Gmbh Kraftstoffinjektor
GB201520123D0 (en) * 2015-11-16 2015-12-30 Delphi Internat Operations Luxembourg S À R L Fuel injector
GB201520206D0 (en) * 2015-11-17 2015-12-30 Delphi Internat Operations Luxembourg S À R L Fuel injector

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005015732A1 (de) * 2005-04-06 2006-10-12 Robert Bosch Gmbh Kraftstoffinjektor mit hydraulischem Mitnehmer

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102006015745A1 (de) 2006-04-04 2007-10-11 Robert Bosch Gmbh Kraftstoffinjektor mit direktgesteuertem Einspritzventilglied

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005015732A1 (de) * 2005-04-06 2006-10-12 Robert Bosch Gmbh Kraftstoffinjektor mit hydraulischem Mitnehmer

Also Published As

Publication number Publication date
EP2386746A2 (de) 2011-11-16
EP2386746B1 (de) 2014-09-03
DE102010028835A1 (de) 2011-11-17

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