EP0976924A3 - Servoventil für ein Einspritzventil und Einspritzventil - Google Patents

Servoventil für ein Einspritzventil und Einspritzventil Download PDF

Info

Publication number
EP0976924A3
EP0976924A3 EP99112980A EP99112980A EP0976924A3 EP 0976924 A3 EP0976924 A3 EP 0976924A3 EP 99112980 A EP99112980 A EP 99112980A EP 99112980 A EP99112980 A EP 99112980A EP 0976924 A3 EP0976924 A3 EP 0976924A3
Authority
EP
European Patent Office
Prior art keywords
valve
chamber
injection
injector
servo valve
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
EP99112980A
Other languages
English (en)
French (fr)
Other versions
EP0976924B1 (de
EP0976924A2 (de
Inventor
Heinz Lixl
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.)
Siemens AG
Siemens Corp
Original Assignee
Siemens AG
Siemens Corp
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 Siemens AG, Siemens Corp filed Critical Siemens AG
Publication of EP0976924A2 publication Critical patent/EP0976924A2/de
Publication of EP0976924A3 publication Critical patent/EP0976924A3/de
Application granted granted Critical
Publication of EP0976924B1 publication Critical patent/EP0976924B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • 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
    • F02M63/0033—Lift valves, i.e. having a valve member that moves perpendicularly to the plane of the valve seat
    • F02M63/0036—Lift valves, i.e. having a valve member that moves perpendicularly to the plane of the valve seat with spherical or partly spherical shaped valve member ends
    • 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

Landscapes

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

Abstract

Das Einspritzventil für die Einspritzung von Kraftstoff in eine Verbrennungskraftmaschine weist einen Steuerraum (4) auf, der über eine Zulaufbohrung (2) mit einem Raum (20) und eine Zulaufdrossel (3) mit einem Hochdruckspeicher in Verbindung steht und der über eine Ablaufdrossel (10) in einer Ablaufbohrung (9) und über die Ventilkammer (22) des Servoventils (12) mit einem drucklosen Rücklauf (14) zu einem Kraftstofftank in Verbindung gebracht werden kann. Der im Steuerraum (4) herrschende Druck wirkt auf einen beweglichen Düsenkörper (6) ein, der mit einer Düsennadel versehen ist, die bei der Bewegung des Düsenkörpers (6) Einspritzlöcher (7) freigibt und verschließt. Das Servoventil (12) umfaßt einen beweglichen Ventilkörper (26), der von einem Aktor (18) betätigt wird und der selektiv an einem Anschlag (24) zwischen dem Raum (20) und der Ventilkammer (22) oder an einem Ventilsitz (28) zwischen der Ventilkammer (22) und dem Rücklauf (14) zur Anlage kommen kann. Wenn der Ventilkörper (26) am Ventilsitz (28) anliegt, kann der Kraftstoff zum Schließen des Einspritzventils über die Zulaufdrossel (3) und außerdem über die Ventilkammer (22) des Servoventils und die Ablaufdrossel (10) in den Steuerraum (4) strömen.
EP99112980A 1998-07-31 1999-07-05 Einspritzventil mit einem Servoventil Expired - Lifetime EP0976924B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19834667 1998-07-31
DE19834667 1998-07-31

Publications (3)

Publication Number Publication Date
EP0976924A2 EP0976924A2 (de) 2000-02-02
EP0976924A3 true EP0976924A3 (de) 2001-06-13
EP0976924B1 EP0976924B1 (de) 2003-09-17

Family

ID=7876057

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99112980A Expired - Lifetime EP0976924B1 (de) 1998-07-31 1999-07-05 Einspritzventil mit einem Servoventil

Country Status (2)

Country Link
EP (1) EP0976924B1 (de)
DE (1) DE59906995D1 (de)

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19939450A1 (de) * 1999-08-20 2001-03-01 Bosch Gmbh Robert Kraftstoffeinspritzvorrichtung für Brennkraftmaschinen
JP4048699B2 (ja) * 1999-11-10 2008-02-20 株式会社デンソー 燃料噴射弁
DE10015268A1 (de) * 2000-03-28 2001-10-04 Siemens Ag Einspritzventil mit Bypaßdrossel
DE10024702A1 (de) * 2000-05-18 2001-11-22 Bosch Gmbh Robert Einspritzanordnung für ein Kraftstoff-Speichereinspritzsystem einer Verbrennungsmaschine
DE10024703A1 (de) * 2000-05-18 2001-11-22 Bosch Gmbh Robert Einspritzanordnung für ein Kraftstoff-Speichereinspritzsystem einer Verbrennungsmaschine
DE10063698A1 (de) * 2000-12-20 2002-07-04 Siemens Ag Hochdruckeinspritzsystem mit Ausführung einer Steuerdrossel als Kaskadendrossel
JP3556921B2 (ja) * 2001-04-27 2004-08-25 株式会社日本自動車部品総合研究所 燃料噴射弁
DE10123775B4 (de) * 2001-05-16 2005-01-20 Robert Bosch Gmbh Kraftstoff-Einspritzvorrichtung für Brennkraftmaschinen, insbesondere Common-Rail-Injektor, sowie Kraftstoffsystem und Brennkraftmaschine
DE10131640A1 (de) * 2001-06-29 2003-01-16 Bosch Gmbh Robert Kraftstoffinjektor mit Einspritzverlaufsformung durch schaltbare Drosselelemente
DE10131619A1 (de) * 2001-06-29 2003-01-23 Bosch Gmbh Robert Kraftstoffinjektor mit Einspritzverlaufsformung
DE10131642A1 (de) * 2001-06-29 2003-01-16 Bosch Gmbh Robert Kraftstoffinjektor mit variabler Steuerraumdruckbeaufschlagung
DE10131618A1 (de) * 2001-06-29 2003-01-23 Bosch Gmbh Robert Kraftstoffinjektor mit zuschaltbarem Steuerraumzulauf
DE10132249A1 (de) * 2001-07-04 2003-01-23 Bosch Gmbh Robert Kraftstoffinjektor mit kraftausgeglichenem Steuerventil
JP3864764B2 (ja) * 2001-11-22 2007-01-10 株式会社デンソー 燃料噴射弁
US7331329B2 (en) 2002-07-15 2008-02-19 Caterpillar Inc. Fuel injector with directly controlled highly efficient nozzle assembly and fuel system using same
DE102005046743B3 (de) * 2005-09-29 2007-05-16 Siemens Ag Verfahren zur Ermittlung des Zeitpunktes des Anschlags eines Ventilkörpers in einem von einem elektromechanischen Aktor betätigten Ablaufventil
BRPI0708551B1 (pt) 2006-03-03 2019-07-02 Ganser-Hydromag Ag Válvula de injeção de combustível para a injeção intermitente de combustível dentro da câmara de combustão de um motor de combustão interna
DE102010001612A1 (de) * 2010-02-05 2011-08-11 Robert Bosch GmbH, 70469 Kraftstoffinjektor
DE102011015753A1 (de) 2011-03-31 2012-10-04 Raphael Füchslin Einspritzventil

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0199632A1 (de) * 1985-04-19 1986-10-29 Societe Alsacienne De Constructions Mecaniques De Mulhouse Einspritzanlage für Dieselmotoren
EP0426205A2 (de) * 1985-12-02 1991-05-08 Marco Alfredo Ganser Steuereinrichtung für elektro-hydraulisch betätigte Kraftstoffeinspritzventile
EP0740067A2 (de) * 1995-04-27 1996-10-30 Isuzu Motors Limited Kraftstoffeinspritzvorrichtung der Akkumulatorgattung

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0199632A1 (de) * 1985-04-19 1986-10-29 Societe Alsacienne De Constructions Mecaniques De Mulhouse Einspritzanlage für Dieselmotoren
EP0426205A2 (de) * 1985-12-02 1991-05-08 Marco Alfredo Ganser Steuereinrichtung für elektro-hydraulisch betätigte Kraftstoffeinspritzventile
EP0740067A2 (de) * 1995-04-27 1996-10-30 Isuzu Motors Limited Kraftstoffeinspritzvorrichtung der Akkumulatorgattung

Also Published As

Publication number Publication date
EP0976924B1 (de) 2003-09-17
EP0976924A2 (de) 2000-02-02
DE59906995D1 (de) 2003-10-23

Similar Documents

Publication Publication Date Title
EP0976924A3 (de) Servoventil für ein Einspritzventil und Einspritzventil
EP1125049B1 (de) Kombiniertes hub-/druckgesteuertes kraftstoffeinspritz verfahren und -system für eine brennkraftmaschine
EP0807757A1 (de) Brennstoffeinspritzventil für Verbrunnungskraftmaschinen
DE4422552C1 (de) Verfahren zum Einspritzen von Kraftstoff in den Brennraum einer Brennkraftmaschine
DE19738397A1 (de) Kraftstoffeinspritzanlage für eine Brennkraftmaschine
EP0952333A3 (de) Einspritzventil für Kraftstoffeinspritzsysteme
DE4445980A1 (de) Einspritzsystem
DE19603435A1 (de) Von Einspritzratenform- bzw. -gestaltungssteuerung geöffnetes Rückschlagventil für eine Brennstoffeinspritzdüse
EP1125045B1 (de) Kraftstoffeinspritzsystem für eine brennkraftmaschine
EP0915254A3 (de) Magnetventilgesteuerter Injektor für ein Speichersystem einer mehrzylindrigen Brennkraftmaschine
EP1651862B1 (de) Schaltventil für einen kraftstoffinjektor mit druckübersetzer
EP1733139B1 (de) Common-rail-injektor
EP1013919A3 (de) Kraftstoffeinspritzventil
EP1335128A3 (de) Ventil zur Steuerung einer Verbindung in einem Hochdruckflüssigkeitssystem, insbesondere einer Kraftstoffeinspritzeinrichtung für eine Brennkraftmaschine
DE10031582A1 (de) Druckgesteuerter Injektor mit gesteuerter Düsennadel
EP2603680A1 (de) Einspritzvorrichtung zum einbringen einer harnstofflösung in den abgasstrang einer brennkraftmaschine
EP1088985A3 (de) Injektor für eine Brennkraftmaschine mit Direkteinspritzung
EP1939441A3 (de) Kraftstoffinjektor
DE19923421C2 (de) Injektor
DE69709550T2 (de) Kraftstoffeinspritzventil für Brennkraftmaschine
US7124746B2 (en) Method and apparatus for controlling a fuel injector
DE3412746A1 (de) Kraftstoffeinspritzanlage
DE102007005382A1 (de) Leckagefreier Injektor
DE102023104967A1 (de) Kraftstoffinjektor für kraftstoffsystem mit dämpfungs einstellventil
DE102006054063A1 (de) Kraftstoffinjektor

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): DE FR IT

AX Request for extension of the european patent

Free format text: AL;LT;LV;MK;RO;SI

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

AX Request for extension of the european patent

Free format text: AL;LT;LV;MK;RO;SI

17P Request for examination filed

Effective date: 20010507

AKX Designation fees paid

Free format text: DE FR IT

17Q First examination report despatched

Effective date: 20020305

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

RTI1 Title (correction)

Free format text: INJECTOR WITH A SERVO VALVE

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): DE FR IT

RIN1 Information on inventor provided before grant (corrected)

Inventor name: LIXL, HEINZ

REF Corresponds to:

Ref document number: 59906995

Country of ref document: DE

Date of ref document: 20031023

Kind code of ref document: P

ET Fr: translation filed
PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed

Effective date: 20040618

REG Reference to a national code

Ref country code: FR

Ref legal event code: TP

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20120731

Year of fee payment: 14

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20130722

Year of fee payment: 15

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: IT

Payment date: 20130729

Year of fee payment: 15

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20140201

REG Reference to a national code

Ref country code: DE

Ref legal event code: R119

Ref document number: 59906995

Country of ref document: DE

Effective date: 20140201

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

Effective date: 20150331

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20140705

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20140731