EP1688611A3 - Kraftstoffinjektor mit direkter Nadelsteuerung für eine Brennkraftmaschine - Google Patents

Kraftstoffinjektor mit direkter Nadelsteuerung für eine Brennkraftmaschine Download PDF

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Publication number
EP1688611A3
EP1688611A3 EP05112500A EP05112500A EP1688611A3 EP 1688611 A3 EP1688611 A3 EP 1688611A3 EP 05112500 A EP05112500 A EP 05112500A EP 05112500 A EP05112500 A EP 05112500A EP 1688611 A3 EP1688611 A3 EP 1688611A3
Authority
EP
European Patent Office
Prior art keywords
combustion engine
internal combustion
fuel injector
needle control
piston
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
EP05112500A
Other languages
English (en)
French (fr)
Other versions
EP1688611A2 (de
EP1688611B1 (de
Inventor
Thomas Pauer
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 EP1688611A2 publication Critical patent/EP1688611A2/de
Publication of EP1688611A3 publication Critical patent/EP1688611A3/de
Application granted granted Critical
Publication of EP1688611B1 publication Critical patent/EP1688611B1/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
    • 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
    • F02M63/0059—Arrangements of valve actuators
    • F02M63/0061—Single actuator acting on two or more valve bodies
    • 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
    • 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
    • F02M2200/705—Linkage between actuator and actuated element, e.g. between piezoelectric actuator and needle valve or pump plunger hydraulic with means for filling or emptying hydraulic chamber, e.g. for compensating clearance or thermal expansion

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Fuel-Injection Apparatus (AREA)
  • Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)

Abstract

Es wird ein Kraftstoffinjektor mit direkter Nadelsteuerung für eine Brennkraftmaschine mit einer in einem Düsenkörper (11) geführten Düsennadel (14) vorgeschlagen. Der Kraftstoffinjektor weist einen Aktor (20) und eine hydraulische Druckübersetzungseinrichtung (30) mit einem mit dem Aktor (20) in Verbindung stehenden aktorseitigen Druckübersetzerkolben (31) und einem mit der Düsennadel (14) in Verbindung stehenden düsennadelseitigen Druckübersetzerkolben (32) auf. Der aktorseitige Druckübersetzerkolben (31) und der düsennadelseitige Druckübersetzerkolben (32) wirken auf einen Kopplerraum (33) ein. Am düsennadelseitigen Druckübersetzerkolben (32) ist ein Zylinderraum (40) ausgebildet, in dem ein Steuerkolben (34) axial geführt ist, der mit einer kopplerraumseitigen Druckfläche (45) dem Kopplerraum (33) und mit einer rückraumseitigen Druckfläche (48) einem im Zylinderraum (40) ausgebildeten inneren Rückraum (36) ausgesetzt ist. An der dem Kopplerraum (33) entgegengesetzten Seite ist dem düsennadelseitigen Druckübersetzerkolben (32) ein äußerer Rückraum (37) zugeordnet, der über eine hydraulische Verbindung (47) mit dem inneren Rückraum (36) verbunden ist.
EP05112500A 2005-02-02 2005-12-20 Kraftstoffinjektor mit direkter Nadelsteuerung für eine Brennkraftmaschine Not-in-force EP1688611B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102005004738A DE102005004738A1 (de) 2005-02-02 2005-02-02 Kraftstoffinjektor mit direkter Nadelsteuerung für eine Brennkraftmaschine

Publications (3)

Publication Number Publication Date
EP1688611A2 EP1688611A2 (de) 2006-08-09
EP1688611A3 true EP1688611A3 (de) 2007-01-10
EP1688611B1 EP1688611B1 (de) 2008-07-30

Family

ID=36182388

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05112500A Not-in-force EP1688611B1 (de) 2005-02-02 2005-12-20 Kraftstoffinjektor mit direkter Nadelsteuerung für eine Brennkraftmaschine

Country Status (4)

Country Link
US (1) US7419103B2 (de)
EP (1) EP1688611B1 (de)
AT (1) ATE403082T1 (de)
DE (2) DE102005004738A1 (de)

Families Citing this family (19)

* 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
DE10352736A1 (de) * 2003-11-12 2005-07-07 Robert Bosch Gmbh Kraftstoffinjektor mit direkter Nadeleinspritzung
DE102005012929A1 (de) * 2005-03-21 2006-09-28 Robert Bosch Gmbh Kraftstoffinjektor mit direkter Steuerung des Einspritzventilglieds und variabler Übersetzung
DE102005016796A1 (de) * 2005-04-12 2006-10-19 Robert Bosch Gmbh Zweistufig öffnender Kraftstoffinjektor
DE102005025953A1 (de) * 2005-06-06 2006-12-07 Siemens Ag Einspritzventil und Ausgleichselement für ein Einspritzventil
DE102005036444A1 (de) * 2005-08-03 2007-02-08 Robert Bosch Gmbh Einspritzdüse
DE102006008648A1 (de) * 2006-02-24 2007-08-30 Robert Bosch Gmbh Kraftstoffeinspritzvorrichtung für eine Brennkraftmaschine
US8074625B2 (en) 2008-01-07 2011-12-13 Mcalister Technologies, Llc Fuel injector actuator assemblies and associated methods of use and manufacture
DE102008008847A1 (de) 2008-02-13 2009-08-27 Robert Bosch Gmbh Kraftstoffinjektor mit einer direkt gesteuerten Ventilnadel
DE102008032133B4 (de) * 2008-07-08 2015-08-20 Continental Automotive Gmbh Kraftstoffeinspritzvorrichtung
DE102009024595A1 (de) 2009-06-10 2011-03-24 Continental Automotive Gmbh Einspritzventil mit Übertragungseinheit
DE102009024596A1 (de) 2009-06-10 2011-04-07 Continental Automotive Gmbh Einspritzventil mit Übertragungseinheit
DE102012212266B4 (de) * 2012-07-13 2015-01-22 Continental Automotive Gmbh Fluidinjektor
DE102012212264B4 (de) 2012-07-13 2014-02-13 Continental Automotive Gmbh Verfahren zum Herstellen eines Festkörperaktuators
US9309846B2 (en) 2012-11-12 2016-04-12 Mcalister Technologies, Llc Motion modifiers for fuel injection systems
WO2014144807A1 (en) * 2012-11-12 2014-09-18 Mcalister Technologies, Llc Systems and methods for providing motion amplification and compensation by fluid displacement
US20140131466A1 (en) 2012-11-12 2014-05-15 Advanced Green Innovations, LLC Hydraulic displacement amplifiers for fuel injectors
DE102013219225A1 (de) * 2013-09-25 2015-03-26 Continental Automotive Gmbh Piezo-Injektor zur Kraftstoff-Direkteinspritzung
DE102014211334B3 (de) * 2014-06-13 2015-08-27 Continental Automotive Gmbh Verfahren zur Charakterisierung eines hydraulischen Koppelelementes eines Piezo-Injektors

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10326046A1 (de) * 2003-06-10 2004-12-30 Robert Bosch Gmbh Einspritzdüse für Brennkraftmaschinen
DE10347769B3 (de) * 2003-10-14 2005-01-13 Siemens Ag Stellgerät

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4784102A (en) * 1984-12-25 1988-11-15 Nippon Soken, Inc. Fuel injector and fuel injection system
DE19712921A1 (de) * 1997-03-27 1998-10-01 Bosch Gmbh Robert Brennstoffeinspritzventil mit piezoelektrischem oder magnetostriktivem Aktor
GB9925753D0 (en) * 1999-10-29 1999-12-29 Lucas Industries Ltd Fuel injector
DE60126380T2 (de) * 2000-07-18 2007-11-15 Delphi Technologies, Inc., Troy Kraftstoffeinspritzventil
US6766965B2 (en) * 2001-08-31 2004-07-27 Siemens Automotive Corporation Twin tube hydraulic compensator for a fuel injector

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10326046A1 (de) * 2003-06-10 2004-12-30 Robert Bosch Gmbh Einspritzdüse für Brennkraftmaschinen
DE10347769B3 (de) * 2003-10-14 2005-01-13 Siemens Ag Stellgerät

Also Published As

Publication number Publication date
DE102005004738A1 (de) 2006-08-10
EP1688611A2 (de) 2006-08-09
US7419103B2 (en) 2008-09-02
US20060169802A1 (en) 2006-08-03
EP1688611B1 (de) 2008-07-30
DE502005004874D1 (de) 2008-09-11
ATE403082T1 (de) 2008-08-15

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