EP1983186A3 - Druckausgeglichenes Stellelement - Google Patents

Druckausgeglichenes Stellelement Download PDF

Info

Publication number
EP1983186A3
EP1983186A3 EP08103368A EP08103368A EP1983186A3 EP 1983186 A3 EP1983186 A3 EP 1983186A3 EP 08103368 A EP08103368 A EP 08103368A EP 08103368 A EP08103368 A EP 08103368A EP 1983186 A3 EP1983186 A3 EP 1983186A3
Authority
EP
European Patent Office
Prior art keywords
actuator
pressure
stabilised
guide pin
holding body
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
EP08103368A
Other languages
English (en)
French (fr)
Other versions
EP1983186A2 (de
EP1983186B1 (de
Inventor
Michael Kurz
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 EP1983186A2 publication Critical patent/EP1983186A2/de
Publication of EP1983186A3 publication Critical patent/EP1983186A3/de
Application granted granted Critical
Publication of EP1983186B1 publication Critical patent/EP1983186B1/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
    • F02M63/0014—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
    • 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
    • F02M63/0043—Two-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
    • F02M63/0057—Means for avoiding fuel contact with valve actuator, e.g. isolating actuators by using bellows or diaphragms

Landscapes

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

Abstract

Die Erfindung bezieht sich auf einen Kraftstoffinjektor (10), der ein Düsenmodul (12), eine Drosselplatte (14) sowie einen Haltekörper (18) umfasst. Diese Komponenten sind über eine Düsenspannmutter (16) zu einem Schraubverbund verspannt. Im Haltekörper (18) ist ein Aktormodul (20) aufgenommen, über welches ein 2/2-Wege-Schaltventil (22) betätigbar ist, mit welchem eine Druckentlastung beziehungsweise eine Druckbeaufschlagung eines Steuerraumes (86) erfolgt, wodurch ein Einspritzventilglied (92) betätigt wird. Das 2/2-Wege-Schaltventil (22) umfasst einen Ventilkörper (44), in dem ein Führungsstift (42) aufgenommen ist, der an einer Stirnseite von unter Systemdruck stehendem Kraftstoff im Hochdruckbereich (52) beaufschlagt ist.
EP08103368A 2007-04-16 2008-04-04 Druckausgeglichenes Stellelement Not-in-force EP1983186B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102007017729A DE102007017729A1 (de) 2007-04-16 2007-04-16 Druckausgeglichenes Stellelement

Publications (3)

Publication Number Publication Date
EP1983186A2 EP1983186A2 (de) 2008-10-22
EP1983186A3 true EP1983186A3 (de) 2009-01-07
EP1983186B1 EP1983186B1 (de) 2011-10-19

Family

ID=39711849

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08103368A Not-in-force EP1983186B1 (de) 2007-04-16 2008-04-04 Druckausgeglichenes Stellelement

Country Status (3)

Country Link
EP (1) EP1983186B1 (de)
AT (1) ATE529624T1 (de)
DE (1) DE102007017729A1 (de)

Families Citing this family (4)

* 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
DE102016220074B4 (de) * 2016-10-14 2023-02-02 Vitesco Technologies GmbH Piezo-Common-Rail-Injektor mit hydraulischem Spielausgleich über Bewegung des Ventilsitzes

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002084106A1 (de) * 2001-04-11 2002-10-24 Robert Bosch Gmbh Ventil zum steuern von flüssigkeiten
WO2008061844A1 (de) * 2006-11-24 2008-05-29 Robert Bosch Gmbh Kraftstoffinjektor

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10218904A1 (de) 2001-05-17 2002-12-05 Bosch Gmbh Robert Kraftstoffeinspritzeinrichtung

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002084106A1 (de) * 2001-04-11 2002-10-24 Robert Bosch Gmbh Ventil zum steuern von flüssigkeiten
WO2008061844A1 (de) * 2006-11-24 2008-05-29 Robert Bosch Gmbh Kraftstoffinjektor

Also Published As

Publication number Publication date
DE102007017729A1 (de) 2008-10-23
ATE529624T1 (de) 2011-11-15
EP1983186A2 (de) 2008-10-22
EP1983186B1 (de) 2011-10-19

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