EP1820960A3 - Brennstoffeinspritzventil - Google Patents

Brennstoffeinspritzventil Download PDF

Info

Publication number
EP1820960A3
EP1820960A3 EP07100009A EP07100009A EP1820960A3 EP 1820960 A3 EP1820960 A3 EP 1820960A3 EP 07100009 A EP07100009 A EP 07100009A EP 07100009 A EP07100009 A EP 07100009A EP 1820960 A3 EP1820960 A3 EP 1820960A3
Authority
EP
European Patent Office
Prior art keywords
fuel injection
actuator
injection valve
valve
fuel 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
EP07100009A
Other languages
English (en)
French (fr)
Other versions
EP1820960B1 (de
EP1820960A2 (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 EP1820960A2 publication Critical patent/EP1820960A2/de
Publication of EP1820960A3 publication Critical patent/EP1820960A3/de
Application granted granted Critical
Publication of EP1820960B1 publication Critical patent/EP1820960B1/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
    • F02M51/0603—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
    • F02M2200/707—Linkage between actuator and actuated element, e.g. between piezoelectric actuator and needle valve or pump plunger hydraulic with means for avoiding fuel contact with actuators, e.g. isolating actuators by using bellows or diaphragms

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Fuel-Injection Apparatus (AREA)

Abstract

Ein Brennstoffeinspritzventil (1) dient als Injektor für Brennstoffeinspritzanlagen von luftverdichtenden, selbstzündenden Brennkraftmaschinen. Ein piezoelektrischer Aktor (2) des Brennstoffeinspritzventils (1) ist in einem Aktorraum (5) eines Ventilgehäuses (3) angeordnet. Dabei stützt sich der Aktor (2) über Stützelemente (38, 39, 40, 41) einer Isolierung (37) an einer Innenwand (49) des Aktorraums (5) des Ventilgehäuses (3) ab. Dadurch ist eine Zentrierung und eine Dämpfung des Aktors (2) gewährleistet, so dass eine hohe Zuverlässigkeit des Brennstoffeinspritzventils (1) über seine Lebensdauer gegeben ist.
EP20070100009 2006-02-15 2007-01-02 Brennstoffeinspritzventil Not-in-force EP1820960B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE200610006889 DE102006006889A1 (de) 2006-02-15 2006-02-15 Brennstoffeinspritzventil

Publications (3)

Publication Number Publication Date
EP1820960A2 EP1820960A2 (de) 2007-08-22
EP1820960A3 true EP1820960A3 (de) 2009-03-04
EP1820960B1 EP1820960B1 (de) 2010-11-03

Family

ID=38012664

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20070100009 Not-in-force EP1820960B1 (de) 2006-02-15 2007-01-02 Brennstoffeinspritzventil

Country Status (3)

Country Link
EP (1) EP1820960B1 (de)
DE (2) DE102006006889A1 (de)
ES (1) ES2355077T3 (de)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102008008111A1 (de) * 2008-02-08 2009-08-13 Continental Automotive Gmbh Einspritzventil, Verfahren und Vorrichtung zur Steuerung eines Einspritzventils

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19856186A1 (de) * 1998-12-05 2000-06-15 Bosch Gmbh Robert Piezoelektrischer Aktor
DE19914411A1 (de) * 1999-03-30 2000-10-12 Bosch Gmbh Robert Piezoelektrischer Aktor
WO2001091197A1 (de) * 2000-05-25 2001-11-29 Robert Bosch Gmbh Piezoaktor
US20020084350A1 (en) * 2000-12-28 2002-07-04 Naoyuki Kawazoe Piezoelectric device for injector, method for producing the same, and injector
EP1256710A2 (de) * 2001-05-08 2002-11-13 MAGNETI MARELLI POWERTRAIN S.p.A. Brennstoffeinspritzventil mit piezoelektrischem Aktor in einem isolierten Gehäuse
WO2004006348A2 (de) * 2002-07-04 2004-01-15 Daimlerchrysler Ag Piezoelektrischer aktor für umströmende medien sowie verwendung eines entsprechenden piezoelektrischen aktors
DE102004010186A1 (de) * 2004-03-02 2005-09-22 Siemens Ag Piezokörper, Piezoaktuator und Fluidinjektor
DE102005025137A1 (de) * 2005-06-01 2006-12-07 Siemens Ag Piezoelektrische Aktoreinheit mit verbesserter Wärmeableitung sowie Kraftstoffinjektor

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10326259A1 (de) 2003-06-11 2005-01-05 Robert Bosch Gmbh Injektor für Kraftstoff-Einspritzsysteme von Brennkraftmaschinen, insbesondere von direkteinspritzenden Dieselmotoren

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19856186A1 (de) * 1998-12-05 2000-06-15 Bosch Gmbh Robert Piezoelektrischer Aktor
DE19914411A1 (de) * 1999-03-30 2000-10-12 Bosch Gmbh Robert Piezoelektrischer Aktor
WO2001091197A1 (de) * 2000-05-25 2001-11-29 Robert Bosch Gmbh Piezoaktor
US20020084350A1 (en) * 2000-12-28 2002-07-04 Naoyuki Kawazoe Piezoelectric device for injector, method for producing the same, and injector
EP1256710A2 (de) * 2001-05-08 2002-11-13 MAGNETI MARELLI POWERTRAIN S.p.A. Brennstoffeinspritzventil mit piezoelektrischem Aktor in einem isolierten Gehäuse
WO2004006348A2 (de) * 2002-07-04 2004-01-15 Daimlerchrysler Ag Piezoelektrischer aktor für umströmende medien sowie verwendung eines entsprechenden piezoelektrischen aktors
DE102004010186A1 (de) * 2004-03-02 2005-09-22 Siemens Ag Piezokörper, Piezoaktuator und Fluidinjektor
DE102005025137A1 (de) * 2005-06-01 2006-12-07 Siemens Ag Piezoelektrische Aktoreinheit mit verbesserter Wärmeableitung sowie Kraftstoffinjektor

Also Published As

Publication number Publication date
EP1820960B1 (de) 2010-11-03
DE102006006889A1 (de) 2007-08-23
DE502007005510D1 (de) 2010-12-16
EP1820960A2 (de) 2007-08-22
ES2355077T3 (es) 2011-03-22

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