EP1607619A3 - Fuel injector - Google Patents

Fuel injector Download PDF

Info

Publication number
EP1607619A3
EP1607619A3 EP05103114A EP05103114A EP1607619A3 EP 1607619 A3 EP1607619 A3 EP 1607619A3 EP 05103114 A EP05103114 A EP 05103114A EP 05103114 A EP05103114 A EP 05103114A EP 1607619 A3 EP1607619 A3 EP 1607619A3
Authority
EP
European Patent Office
Prior art keywords
transmission device
power transmission
valve needle
actuator
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.)
Ceased
Application number
EP05103114A
Other languages
German (de)
French (fr)
Other versions
EP1607619A2 (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 EP1607619A2 publication Critical patent/EP1607619A2/en
Publication of EP1607619A3 publication Critical patent/EP1607619A3/en
Ceased 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
    • 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
    • F02M2200/708—Linkage between actuator and actuated element, e.g. between piezoelectric actuator and needle valve or pump plunger hydraulic with hydraulic chambers formed by a movable sleeve

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

Eine Kraftstoffeinspritzvorrichtung (1) mit einer direkt gesteuerten Ventilnadel (10), die in Abhängigkeit von ihrer Stellung eine Einspritzöffnung (10) zum Einspritzen von Kraftstoff in einen Brennraum öffnet oder schließt, wobei zum Betätigen der Ventilnadel (10) ein elektrisch betriebener Aktor (30) einerseits mit der Ventilnadel (10) über eine Kraftübertragungsvorrichtung gekoppelt ist und andererseits in der Vorrichtung fest verankert ist, ist dadurch gekennzeichnet, dass das mit der Kraftübertragungsvorrichtung gekoppelte Element des Aktors (30) der Kraftübertragungsvorrichtung abgewandt ist, und das in der Vorrichtung fest verankerte Element des Aktors (30) der Kraftübertragungsvorrichtung zugewandt ist.A fuel injector (1) having a directly controlled valve needle (10) which opens or closes an injection port (10) for injecting fuel into a combustion chamber depending on its position, wherein an electrically driven actuator (30) operates to actuate the valve needle (10) ) is coupled on the one hand with the valve needle (10) via a power transmission device and on the other hand firmly anchored in the device, characterized in that the coupled with the force transmission device element of the actuator (30) is remote from the power transmission device, and firmly anchored in the device Element of the actuator (30) facing the power transmission device.

EP05103114A 2004-06-15 2005-04-19 Fuel injector Ceased EP1607619A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102004028885 2004-06-15
DE200410028885 DE102004028885A1 (en) 2004-06-15 2004-06-15 Fuel injection valve

Publications (2)

Publication Number Publication Date
EP1607619A2 EP1607619A2 (en) 2005-12-21
EP1607619A3 true EP1607619A3 (en) 2008-08-27

Family

ID=34980100

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05103114A Ceased EP1607619A3 (en) 2004-06-15 2005-04-19 Fuel injector

Country Status (2)

Country Link
EP (1) EP1607619A3 (en)
DE (1) DE102004028885A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103133205B (en) * 2013-03-14 2014-11-26 天津大学 Two-channel piezoelectric oil ejector
DE102017116367A1 (en) 2017-07-20 2019-01-24 Liebherr-Components Deggendorf Gmbh Device for controlling an injector

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4101076A (en) * 1975-04-03 1978-07-18 Teledyne Industries, Inc. Piezoelectric fuel injector valve
DE19843535A1 (en) * 1998-09-23 2000-03-30 Bosch Gmbh Robert Fuel injector
DE19915210A1 (en) * 1999-04-03 2000-10-05 Bosch Gmbh Robert Fuel injection valve for internal combustion engine, with actuator acting via needle carrier on valve needle
DE19947779A1 (en) * 1999-10-02 2001-04-12 Bosch Gmbh Robert Fuel injector

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4101076A (en) * 1975-04-03 1978-07-18 Teledyne Industries, Inc. Piezoelectric fuel injector valve
DE19843535A1 (en) * 1998-09-23 2000-03-30 Bosch Gmbh Robert Fuel injector
DE19915210A1 (en) * 1999-04-03 2000-10-05 Bosch Gmbh Robert Fuel injection valve for internal combustion engine, with actuator acting via needle carrier on valve needle
DE19947779A1 (en) * 1999-10-02 2001-04-12 Bosch Gmbh Robert Fuel injector

Also Published As

Publication number Publication date
DE102004028885A1 (en) 2006-01-05
EP1607619A2 (en) 2005-12-21

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