EP2511514A3 - Brennstoffeinspritzventil - Google Patents

Brennstoffeinspritzventil Download PDF

Info

Publication number
EP2511514A3
EP2511514A3 EP12158513.7A EP12158513A EP2511514A3 EP 2511514 A3 EP2511514 A3 EP 2511514A3 EP 12158513 A EP12158513 A EP 12158513A EP 2511514 A3 EP2511514 A3 EP 2511514A3
Authority
EP
European Patent Office
Prior art keywords
valve
sleeve
chamber
pressure
switching
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
EP12158513.7A
Other languages
English (en)
French (fr)
Other versions
EP2511514A2 (de
EP2511514B1 (de
Inventor
Karsten-Sepp Ramsauer
Holger Rapp
Daniel Schrader
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 EP2511514A2 publication Critical patent/EP2511514A2/de
Publication of EP2511514A3 publication Critical patent/EP2511514A3/de
Application granted granted Critical
Publication of EP2511514B1 publication Critical patent/EP2511514B1/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
    • 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
    • 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
    • F02M63/0031—Valves characterized by the type of valves, e.g. special valve member details, valve seat details, valve housing details
    • F02M63/0045—Three-way valves
    • 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
    • F02M63/007—Details not provided for in, or of interest apart from, the apparatus of the groups F02M63/0014 - F02M63/0059
    • F02M63/0071—Details not provided for in, or of interest apart from, the apparatus of the groups F02M63/0014 - F02M63/0059 characterised by guiding or centering means in valves including the absence of any guiding means, e.g. "flying arrangements"
    • 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
    • F02M2200/28—Details of throttles in fuel-injection apparatus
    • 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
    • F02M63/0031—Valves characterized by the type of valves, e.g. special valve member details, valve seat details, valve housing details
    • F02M63/0033—Lift valves, i.e. having a valve member that moves perpendicularly to the plane of the valve seat
    • F02M63/0035—Poppet valves, i.e. having a mushroom-shaped valve member that moves perpendicularly to the plane of the valve seat

Abstract

Ein Brennstoffeinspritzventil (1), das insbesondere als Injektor für Brennstoffeinspritzanlagen von luftverdichtenden, selbstzündenden Brennkraftmaschinen dient, umfasst ein Schaltventil (5), einen Verbindungskanal (31), der aus einem Steuerraum (29) in einen Verteilerraum (9) des Schaltventils (5) führt, und einen Hochdruckkanal (16). Je nach Schaltstellung des Schaltventils (5) ist der Ventilraum (9) mit einem Niederdruckbereich (12) oder mit dem Hochdruckkanal (16) verbunden. Das Schaltventil (5) umfasst eine Hülse (7) und einen in der Hülse (7) geführten Ventilbolzen (8), wobei zwischen der Hülse (7) und dem Ventilbolzen (8) ein Dichtsitz (15) gebildet ist, über den die Verbindung des Ventilraums (9) mit dem Hochdruckkanal (16) steuerbar ist. Ferner ist im Bereich der Führung zwischen dem Ventilbolzen (8) und der Hülse (7) eine Drossel (23, 42) ausgestaltet, über die der Ventilraum (9) mit dem Hochdruckkanal (16) verbindbar ist.
EP20120158513 2011-04-11 2012-03-08 Brennstoffeinspritzventil Not-in-force EP2511514B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE201110007106 DE102011007106A1 (de) 2011-04-11 2011-04-11 Brennstoffeinspritzventil

Publications (3)

Publication Number Publication Date
EP2511514A2 EP2511514A2 (de) 2012-10-17
EP2511514A3 true EP2511514A3 (de) 2013-11-13
EP2511514B1 EP2511514B1 (de) 2014-11-19

Family

ID=45833180

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20120158513 Not-in-force EP2511514B1 (de) 2011-04-11 2012-03-08 Brennstoffeinspritzventil

Country Status (2)

Country Link
EP (1) EP2511514B1 (de)
DE (1) DE102011007106A1 (de)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102012212614A1 (de) 2012-07-18 2014-01-23 Continental Automotive Gmbh Piezoinjektor mit hydraulisch gekoppelter Düsennadelbewegung
DE102012222509A1 (de) 2012-12-07 2014-06-12 Continental Automotive Gmbh Piezoinjektor
DE102012223934B4 (de) 2012-12-20 2015-10-15 Continental Automotive Gmbh Piezoinjektor

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009033887A1 (de) * 2007-09-06 2009-03-19 Continental Automotive Gmbh Einspritzsystem und verfahren zum herstellen eines einspritzsystems
DE102009026564A1 (de) * 2009-05-29 2010-12-02 Robert Bosch Gmbh Kraftstoff-Injektor mit druckausgeglichenem Steuerventil
EP2275666A1 (de) * 2009-07-07 2011-01-19 Robert Bosch GmbH Kraftstoff-Injektor mit druckausgeglichenem Steuerventil
EP2339164A1 (de) * 2009-12-23 2011-06-29 Robert Bosch GmbH Druckausgeglichener Kraftstoffinjektor mit Bypass und minimiertem Ventilraumvolumen

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102004061800A1 (de) 2004-12-22 2006-07-06 Robert Bosch Gmbh Injektor eines Kraftstoffeinspritzsystems einer Brennkraftmaschine

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009033887A1 (de) * 2007-09-06 2009-03-19 Continental Automotive Gmbh Einspritzsystem und verfahren zum herstellen eines einspritzsystems
DE102009026564A1 (de) * 2009-05-29 2010-12-02 Robert Bosch Gmbh Kraftstoff-Injektor mit druckausgeglichenem Steuerventil
EP2275666A1 (de) * 2009-07-07 2011-01-19 Robert Bosch GmbH Kraftstoff-Injektor mit druckausgeglichenem Steuerventil
EP2339164A1 (de) * 2009-12-23 2011-06-29 Robert Bosch GmbH Druckausgeglichener Kraftstoffinjektor mit Bypass und minimiertem Ventilraumvolumen

Also Published As

Publication number Publication date
EP2511514A2 (de) 2012-10-17
EP2511514B1 (de) 2014-11-19
DE102011007106A1 (de) 2012-10-11

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