EP1865192A3 - Kraftstoffinjektor mit Servounterstützung - Google Patents

Kraftstoffinjektor mit Servounterstützung Download PDF

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Publication number
EP1865192A3
EP1865192A3 EP07106974A EP07106974A EP1865192A3 EP 1865192 A3 EP1865192 A3 EP 1865192A3 EP 07106974 A EP07106974 A EP 07106974A EP 07106974 A EP07106974 A EP 07106974A EP 1865192 A3 EP1865192 A3 EP 1865192A3
Authority
EP
European Patent Office
Prior art keywords
valve member
injection valve
booster piston
fuel injector
injector
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
EP07106974A
Other languages
English (en)
French (fr)
Other versions
EP1865192B1 (de
EP1865192A2 (de
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 EP1865192A2 publication Critical patent/EP1865192A2/de
Publication of EP1865192A3 publication Critical patent/EP1865192A3/de
Application granted granted Critical
Publication of EP1865192B1 publication Critical patent/EP1865192B1/de
Expired - Fee Related 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
    • 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
    • F02M63/0026—Valves characterised by the valve actuating means electrical, e.g. using solenoid using piezoelectric or magnetostrictive actuators
    • 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
    • F02M51/0603—Injectors peculiar thereto with means directly operating the valve needle using piezoelectric or magnetostrictive 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
    • 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
    • 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
    • F02M2200/704—Linkage between actuator and actuated element, e.g. between piezoelectric actuator and needle valve or pump plunger hydraulic with actuator and actuated element moving in different directions, e.g. in opposite directions

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)
  • Fuel-Injection Apparatus (AREA)

Abstract

Die Erfindung betrifft einen Injektor zum Einspritzen von Kraftstoff in einen Brennraum einer Verbrennungskraftmaschine, wobei der Injektor (1) mittels eines Aktors (5) betätigt wird und mit einem Kraftstoffzulauf (45) verbunden ist, über den unter Systemdruck stehender Kraftstoff zugeführt wird, und bei dem mindestens eine Einspritzöffnung (59) durch ein Einspritzventilglied (23) freigebbar oder verschließbar ist. Das Einspritzventilglied (23) wird mittels eines Übersetzerkolbens (19) angesteuert. Am Übersetzerkolben (19) ist ein hülsenförmiger Abschnitt (21) ausgebildet, in dem das Einspritzventilglied (23) geführt ist und der mit einer Stirnfläche (25) des Einspritzventilgliedes (23) einen Steuerraum (29) begrenzt. Der Übersetzerkolben (19) ist ein Ventilkolben eines Servoventiles (33).
EP20070106974 2006-06-07 2007-04-26 Kraftstoffinjektor mit Servounterstützung Expired - Fee Related EP1865192B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE200610026400 DE102006026400A1 (de) 2006-06-07 2006-06-07 Kraftstoffinjektor mit Servounterstützung

Publications (3)

Publication Number Publication Date
EP1865192A2 EP1865192A2 (de) 2007-12-12
EP1865192A3 true EP1865192A3 (de) 2009-04-29
EP1865192B1 EP1865192B1 (de) 2010-11-03

Family

ID=38476848

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20070106974 Expired - Fee Related EP1865192B1 (de) 2006-06-07 2007-04-26 Kraftstoffinjektor mit Servounterstützung

Country Status (2)

Country Link
EP (1) EP1865192B1 (de)
DE (2) DE102006026400A1 (de)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102006055487A1 (de) * 2006-11-24 2008-05-29 Robert Bosch Gmbh Kraftstoffinjektor
DE102009002897A1 (de) * 2009-05-07 2010-11-11 Robert Bosch Gmbh Kraftstoffinjektor
DE102011003443A1 (de) * 2011-02-01 2012-08-02 Robert Bosch Gmbh Kraftstoffinjektor
WO2013045688A1 (en) * 2011-10-01 2013-04-04 Robert Bosch Gmbh An injection valve having wet actuator and simplified hydraulic transmission
HUE027556T2 (en) 2012-06-13 2016-10-28 Delphi Int Operations Luxembourg Sarl atomizer
DE102014211469A1 (de) * 2014-06-16 2015-12-17 Robert Bosch Gmbh Düsenbaugruppe für einen Kraftstoffinjektor sowie Kraftstoffinjektor
GB2592019B (en) * 2020-02-12 2022-07-06 Delphi Tech Ip Ltd Diesel injector with an optimized valve assembly

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19939452A1 (de) * 1999-08-20 2001-03-01 Bosch Gmbh Robert Vorrichtung zur Einspritzung von Kraftstoff
WO2005075811A1 (de) * 2004-02-04 2005-08-18 Robert Bosch Gmbh Kraftstoffinjektor mit direktgesteuertem einspritzventilglied
DE102004015744A1 (de) * 2004-03-31 2005-10-13 Robert Bosch Gmbh Common-Rail-Injektor

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19939452A1 (de) * 1999-08-20 2001-03-01 Bosch Gmbh Robert Vorrichtung zur Einspritzung von Kraftstoff
WO2005075811A1 (de) * 2004-02-04 2005-08-18 Robert Bosch Gmbh Kraftstoffinjektor mit direktgesteuertem einspritzventilglied
DE102004015744A1 (de) * 2004-03-31 2005-10-13 Robert Bosch Gmbh Common-Rail-Injektor

Also Published As

Publication number Publication date
EP1865192B1 (de) 2010-11-03
DE102006026400A1 (de) 2007-12-13
EP1865192A2 (de) 2007-12-12
DE502007005524D1 (de) 2010-12-16

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