EP1088985A3 - Injektor für eine Brennkraftmaschine mit Direkteinspritzung - Google Patents

Injektor für eine Brennkraftmaschine mit Direkteinspritzung Download PDF

Info

Publication number
EP1088985A3
EP1088985A3 EP00121484A EP00121484A EP1088985A3 EP 1088985 A3 EP1088985 A3 EP 1088985A3 EP 00121484 A EP00121484 A EP 00121484A EP 00121484 A EP00121484 A EP 00121484A EP 1088985 A3 EP1088985 A3 EP 1088985A3
Authority
EP
European Patent Office
Prior art keywords
bore
control piston
nozzle
injector
combustion engine
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
EP00121484A
Other languages
English (en)
French (fr)
Other versions
EP1088985A2 (de
EP1088985B1 (de
Inventor
Ulrich Dr. Augustin
Dirk Dr. Baranowski
Wilhelm Frank
Wendelin KLÜGL
Günter LEWENTZ
Heinz Lixl
Gerd Dr. Schmutzler
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 EP1088985A2 publication Critical patent/EP1088985A2/de
Publication of EP1088985A3 publication Critical patent/EP1088985A3/de
Application granted granted Critical
Publication of EP1088985B1 publication Critical patent/EP1088985B1/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
    • F02M61/00—Fuel-injectors not provided for in groups F02M39/00 - F02M57/00 or F02M67/00
    • F02M61/04—Fuel-injectors not provided for in groups F02M39/00 - F02M57/00 or F02M67/00 having valves, e.g. having a plurality of valves in series
    • F02M61/10—Other injectors with elongated valve bodies, i.e. of needle-valve type
    • F02M61/12—Other injectors with elongated valve bodies, i.e. of needle-valve type characterised by the provision of guiding or centring means for 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
    • F02M61/00—Fuel-injectors not provided for in groups F02M39/00 - F02M57/00 or F02M67/00
    • F02M61/16—Details not provided for in, or of interest apart from, the apparatus of groups F02M61/02 - F02M61/14
    • F02M61/168—Assembling; Disassembling; Manufacturing; Adjusting
    • 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
    • F02M61/00—Fuel-injectors not provided for in groups F02M39/00 - F02M57/00 or F02M67/00
    • F02M61/16—Details not provided for in, or of interest apart from, the apparatus of groups F02M61/02 - F02M61/14
    • F02M61/20—Closing valves mechanically, e.g. arrangements of springs or weights or permanent magnets; Damping of valve lift

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)
  • Manufacturing & Machinery (AREA)
  • Fuel-Injection Apparatus (AREA)

Abstract

Die Erfindung betrifft einen Injektor (10), der einen Injektorkörper (20) umfaßt, welcher einen Injektorkörperabschnitt (30) und einen Düsenkörperabschnitt (40) aufweist, mit einer sich axial erstreckenden Bohrung (50), eine in diese Bohrung (50) mündende Kraftstoffzuführbohrung (60), einen in der axialen Bohrung (50) verlagerbaren Steuerkolben (70), einen Steuerraum (100) oberhalb des Steuerkolbens (70), ein den Steuerraum (100) entlastendes ansteuerbares Ventil (90), eine sich durch die axiale Bohrung (50) erstreckende, mit dem Steuerkolben (70) in Verbindung stehende Düsennadel (80) zum Öffnen und Schließen einer Einspritzdüse, und eine die Düsennadel (80) in einen Nadelsitz (170) im Bereich der Einspritzdüse vorspannende Düsenfeder (160). Bei dem Injektor (10) mündet die Kraftstoffzuführbohrung (60) in einem Bereich unterhalb des Steuerkolbens (70) in die axiale Bohrung (50) und die Zufuhr von Kraftstoff in den Steuerraum (100) aus dem Bereich der axialen Bohrung (50) unterhalb des Steuerkolbens (70) erfolgt durch eine Bohrung (110) im Steuerkolben (70).
EP20000121484 1999-09-29 2000-09-29 Injektor für eine Brennkraftmaschine mit Direkteinspritzung Expired - Lifetime EP1088985B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19946766 1999-09-29
DE1999146766 DE19946766C2 (de) 1999-09-29 1999-09-29 Injektor für eine Brennkraftmaschine mit Direkteinspritzung

Publications (3)

Publication Number Publication Date
EP1088985A2 EP1088985A2 (de) 2001-04-04
EP1088985A3 true EP1088985A3 (de) 2003-11-19
EP1088985B1 EP1088985B1 (de) 2006-03-22

Family

ID=7923774

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20000121484 Expired - Lifetime EP1088985B1 (de) 1999-09-29 2000-09-29 Injektor für eine Brennkraftmaschine mit Direkteinspritzung

Country Status (2)

Country Link
EP (1) EP1088985B1 (de)
DE (2) DE19946766C2 (de)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10132450B4 (de) * 2001-07-04 2010-02-11 Robert Bosch Gmbh Kraftstoffeinspritzventil für Brennkraftmaschinen
DE10154576C1 (de) * 2001-11-07 2003-04-17 Bosch Gmbh Robert Kraftstoffinjektor mit düsennaher Magnetventilanordnung
DE10160263A1 (de) 2001-12-07 2003-06-18 Bosch Gmbh Robert Kraftstoffeinspritzeinrichtung für eine Brennkraftmaschine
DE10205185A1 (de) 2002-02-08 2003-08-21 Bosch Gmbh Robert Kraftstoffeinspritzeinrichtung für eine Brennkraftmaschine
DE10240440C1 (de) * 2002-09-02 2003-12-24 Siemens Ag Krafstoffinjektor, insbesondere Common-Rail-Dieselinjektor
DE10253721A1 (de) * 2002-11-19 2004-06-03 Robert Bosch Gmbh Kraftstoffeinspritzventil für Brennkraftmaschinen
JP3891974B2 (ja) 2003-10-01 2007-03-14 株式会社日本自動車部品総合研究所 燃料噴射弁
DE102004024119B4 (de) * 2004-05-14 2006-04-20 Siemens Ag Düsenbaugruppe und Einspritzventil
AT500774B8 (de) * 2004-08-06 2007-02-15 Bosch Gmbh Robert Vorrichtung zum einspritzen von kraftstoff in den brennraum einer brennkraftmaschine
DE102006029392A1 (de) * 2006-06-27 2008-01-03 Robert Bosch Gmbh Injektor
DE102007035752A1 (de) * 2007-07-31 2009-02-05 Robert Bosch Gmbh Kraftstoffinjektor mit einer auf dem Kegelventilsitz einer Düsennadel aufsitzenden Zentrierhülse als Führung für die Düsennadel

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4826080A (en) * 1985-12-02 1989-05-02 Ganser Marco A Fuel injection device for internal combustion engines
DE4203343C1 (en) * 1992-02-06 1993-05-19 Mtu Friedrichshafen Gmbh IC engine fuel injection nozzle - has combustion chamber facing openings or spray holes coverable by peripheral closure wall parts
US5671715A (en) * 1995-04-27 1997-09-30 Nipon Soken, Inc. Fuel injection device
US5860597A (en) * 1997-03-24 1999-01-19 Cummins Engine Company, Inc. Injection rate shaping nozzle assembly for a fuel injector
EP0921301A2 (de) * 1997-12-06 1999-06-09 LUCAS INDUSTRIES public limited company Kraftstoffeinspritzventil

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4826080A (en) * 1985-12-02 1989-05-02 Ganser Marco A Fuel injection device for internal combustion engines
DE4203343C1 (en) * 1992-02-06 1993-05-19 Mtu Friedrichshafen Gmbh IC engine fuel injection nozzle - has combustion chamber facing openings or spray holes coverable by peripheral closure wall parts
US5671715A (en) * 1995-04-27 1997-09-30 Nipon Soken, Inc. Fuel injection device
US5860597A (en) * 1997-03-24 1999-01-19 Cummins Engine Company, Inc. Injection rate shaping nozzle assembly for a fuel injector
EP0921301A2 (de) * 1997-12-06 1999-06-09 LUCAS INDUSTRIES public limited company Kraftstoffeinspritzventil

Also Published As

Publication number Publication date
DE19946766C2 (de) 2001-07-26
DE19946766A1 (de) 2001-04-26
EP1088985A2 (de) 2001-04-04
DE50012433D1 (de) 2006-05-11
EP1088985B1 (de) 2006-03-22

Similar Documents

Publication Publication Date Title
US6892967B2 (en) Fuel-injection valve for internal combustion engine
US1833080A (en) Fuel injection or spray valve
WO2005050003A1 (de) Injektor zur einspritzung von kraftstoff in brennräume von brennkraftmaschinen, insbesondere piezoaktorgesteuerter common-rail-injektor
EP1255038A3 (de) Brennstoffeinspritzanlage
EP1118765A3 (de) Brennstoffeinspritzventil für Verbrennungskraftmaschinen
EP1693564A3 (de) Kraftstoffinjektor mit direkter Nadelsteuerung für eine Brennkraftmaschine
EP1088985A3 (de) Injektor für eine Brennkraftmaschine mit Direkteinspritzung
EP0864743A3 (de) Kraftstoffeinspritzventil für Brennkraftmaschinen
DE4341545A1 (de) Kraftstoffeinspritzeinrichtung für Brennkraftmaschinen
EP0976924A3 (de) Servoventil für ein Einspritzventil und Einspritzventil
EP1201913A3 (de) Kraftstoffhochdruckpumpe mit veränderlicher Fördermenge
EP1584813A3 (de) Kraftstoffeinspritzeinrichtung für Brennkraftmaschinen mit direkt ansteuerbaren Düsennadeln
EP0915254A3 (de) Magnetventilgesteuerter Injektor für ein Speichersystem einer mehrzylindrigen Brennkraftmaschine
EP1013919A3 (de) Kraftstoffeinspritzventil
EP1335128A3 (de) Ventil zur Steuerung einer Verbindung in einem Hochdruckflüssigkeitssystem, insbesondere einer Kraftstoffeinspritzeinrichtung für eine Brennkraftmaschine
EP1382838A3 (de) Brennstoffeinspritzventil
EP0872636A3 (de) Kraftstoffeinspritzventil für Brennkraftmaschinen
EP0779430A1 (de) Einspritzventil
EP1211411A3 (de) Modular aufgebauter Injektor zum Einspritzen von Kraftstoff
EP1421272B1 (de) Kraftstoffeinspritzvorrichtung für brennkraftmaschinen
EP1312789A3 (de) Doppelter Brennstoffzulauf eines Kraftstoffeinspritzventils
DE19618650B4 (de) Verfahren zur Herstellung eines Kraftstoffeinspritzventils für Brennkraftmaschinen
EP1076176A3 (de) Einspritzanlage für eine Brennkraftmaschine
EP1273792A3 (de) Kraftstoffinjektor mit hochdruckfestem Zulauf
EP1281861B1 (de) Kraftstoff-Einspritzeinrichtung für Brennkraftmaschinen

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): 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

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

Extension state: AL LT LV MK RO SI

RIC1 Information provided on ipc code assigned before grant

Ipc: 7F 02M 47/02 A

Ipc: 7F 02M 61/12 B

Ipc: 7F 02M 61/16 B

Ipc: 7F 02M 61/20 B

Ipc: 7F 02M 61/10 B

17P Request for examination filed

Effective date: 20040517

AKX Designation fees paid

Designated state(s): DE FR GB IT

17Q First examination report despatched

Effective date: 20040820

RIN1 Information on inventor provided before grant (corrected)

Inventor name: LIXL, HEINZ

Inventor name: FRANK, WILHELM

Inventor name: LEWENTZ, GUENTHER

Inventor name: KLUEGL, WENDELIN

Inventor name: BARANOWSKI, DIRK, DR.

Inventor name: AUGUSTIN, ULRICH, DR.

Inventor name: SCHMUTZLER, GERD, DR.

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

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 GB IT

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

Free format text: NOT ENGLISH

GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)

Effective date: 20060322

REF Corresponds to:

Ref document number: 50012433

Country of ref document: DE

Date of ref document: 20060511

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: 20061227

REG Reference to a national code

Ref country code: FR

Ref legal event code: TP

REG Reference to a national code

Ref country code: GB

Ref legal event code: 732E

Free format text: REGISTERED BETWEEN 20110825 AND 20110831

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

Ref country code: GB

Payment date: 20120920

Year of fee payment: 13

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20130929

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

Ref country code: GB

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

Effective date: 20130929

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

Ref country code: IT

Payment date: 20140929

Year of fee payment: 15

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: 20150929

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 17

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 18

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 19

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

Ref country code: FR

Payment date: 20180924

Year of fee payment: 19

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

Ref country code: DE

Payment date: 20180930

Year of fee payment: 19

REG Reference to a national code

Ref country code: DE

Ref legal event code: R119

Ref document number: 50012433

Country of ref document: DE

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: 20200401

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: 20190930