EP1314881A3 - Injektor für ein Common-Rail-Kraftstoffeinspritzsystem mit Einspritzverlaufsformung - Google Patents

Injektor für ein Common-Rail-Kraftstoffeinspritzsystem mit Einspritzverlaufsformung Download PDF

Info

Publication number
EP1314881A3
EP1314881A3 EP02024236A EP02024236A EP1314881A3 EP 1314881 A3 EP1314881 A3 EP 1314881A3 EP 02024236 A EP02024236 A EP 02024236A EP 02024236 A EP02024236 A EP 02024236A EP 1314881 A3 EP1314881 A3 EP 1314881A3
Authority
EP
European Patent Office
Prior art keywords
common
injection
fuel injector
rate shaping
rail
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.)
Withdrawn
Application number
EP02024236A
Other languages
English (en)
French (fr)
Other versions
EP1314881A2 (de
Inventor
Rainer Buck
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 EP1314881A2 publication Critical patent/EP1314881A2/de
Publication of EP1314881A3 publication Critical patent/EP1314881A3/de
Withdrawn legal-status Critical Current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
    • 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
    • F02M63/0003—Fuel-injection apparatus having a cyclically-operated valve for connecting a pressure source, e.g. constant pressure pump or accumulator, to an injection valve held closed mechanically, e.g. by springs, and automatically opened by fuel pressure
    • F02M63/0007—Fuel-injection apparatus having a cyclically-operated valve for connecting a pressure source, e.g. constant pressure pump or accumulator, to an injection valve held closed mechanically, e.g. by springs, and automatically opened by fuel pressure using electrically actuated 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
    • F02M45/00—Fuel-injection apparatus characterised by having a cyclic delivery of specific time/pressure or time/quantity relationship
    • F02M45/02—Fuel-injection apparatus characterised by having a cyclic delivery of specific time/pressure or time/quantity relationship with each cyclic delivery being separated into two or more parts
    • F02M45/04—Fuel-injection apparatus characterised by having a cyclic delivery of specific time/pressure or time/quantity relationship with each cyclic delivery being separated into two or more parts with a small initial part, e.g. initial part for partial load and initial and main part for full load
    • F02M45/08—Injectors peculiar thereto
    • 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
    • F02M45/00—Fuel-injection apparatus characterised by having a cyclic delivery of specific time/pressure or time/quantity relationship
    • F02M45/12—Fuel-injection apparatus characterised by having a cyclic delivery of specific time/pressure or time/quantity relationship providing a continuous cyclic delivery with variable 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
    • 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

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

Es wird ein Common-Rail-Injektor vorgeschlagen, der großen Spielraum bei der Gestaltung des Verlaufs von Voreinspritzung und Haupteinspritzung und des Einspritzdrucks bietet. Außerdem bietet er eine verbesserte Sicherheit gegen Leckagen in den Brennraum durch z. B. einen undichten Düsennadelventilsitz (34).
EP02024236A 2001-11-27 2002-10-31 Injektor für ein Common-Rail-Kraftstoffeinspritzsystem mit Einspritzverlaufsformung Withdrawn EP1314881A3 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10158028A DE10158028A1 (de) 2001-11-27 2001-11-27 Injektor für ein Common-Rail-Kraftstoffeinspritzsystem mit Einspritzverlaufsformung
DE10158028 2001-11-27

Publications (2)

Publication Number Publication Date
EP1314881A2 EP1314881A2 (de) 2003-05-28
EP1314881A3 true EP1314881A3 (de) 2006-03-22

Family

ID=7707048

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02024236A Withdrawn EP1314881A3 (de) 2001-11-27 2002-10-31 Injektor für ein Common-Rail-Kraftstoffeinspritzsystem mit Einspritzverlaufsformung

Country Status (4)

Country Link
US (1) US6758417B2 (de)
EP (1) EP1314881A3 (de)
JP (1) JP2003184705A (de)
DE (1) DE10158028A1 (de)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10160263A1 (de) * 2001-12-07 2003-06-18 Bosch Gmbh Robert Kraftstoffeinspritzeinrichtung für eine Brennkraftmaschine
ATE375446T1 (de) 2004-01-13 2007-10-15 Delphi Tech Inc Kraftstoffeinspritzventil
FI119120B (fi) * 2004-01-23 2008-07-31 Waertsilae Finland Oy Laitteisto ja menetelmä polttoaineen ruiskutuspaineen muokkaamiseksi
US20090118612A1 (en) 2005-05-06 2009-05-07 Sorin Grunwald Apparatus and Method for Vascular Access
CN101854853B (zh) 2007-06-26 2013-11-06 威索诺瓦公司 使用生理参数进行血管内装置引导和定位的设备和方法
JP5039524B2 (ja) * 2007-12-05 2012-10-03 三菱重工業株式会社 蓄圧式燃料噴射装置の燃料噴射弁
JP5120293B2 (ja) * 2009-02-20 2013-01-16 株式会社デンソー 燃料噴射弁
US8628031B2 (en) * 2010-01-07 2014-01-14 Sturman Industries, Inc. Method and apparatus for controlling needle seat load in very high pressure diesel injectors
DE102010063981A1 (de) 2010-12-22 2012-06-28 Continental Automotive Gmbh Magnetodynamischer Aktor und Verfahren zur Betätigung eines Kraftstoffeinspritzventils

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5397055A (en) * 1991-11-01 1995-03-14 Paul; Marius A. Fuel injector system
DE19963920A1 (de) * 1999-12-31 2001-07-12 Bosch Gmbh Robert Injektor für ein Common-Rail-Kraftstoffeinspritzsystem mit schiebergesteuertem Zulaufkanal und direkter Kopplung von Steuerkolben und Düsenkanal
DE10002704A1 (de) * 2000-01-22 2001-08-02 Bosch Gmbh Robert Einspritzeinrichtung und Verfahren zum Einspritzen von Fluid

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3105205A1 (de) * 1981-02-13 1982-12-30 Günter 8543 Hilpoltstein Elsbett Kolbenpumpe zum foerdern von fluessigkeiten, insbesondere kraftstoff fuer hubkolben-brennkraftmaschinen
JP2636361B2 (ja) * 1988-09-21 1997-07-30 トヨタ自動車株式会社 ユニットインジェクタ
IT1232027B (it) * 1989-03-03 1992-01-23 Weber Srl Perfezionamento ai dispositivi di iniezione del combustibile ad azio namento elettromagnetico per motori a ciclo diesel
AT1626U1 (de) * 1995-04-05 1997-08-25 Avl Verbrennungskraft Messtech Speichereinspritzsystem für brennkraftmaschinen
GB9905896D0 (en) * 1999-03-16 1999-05-05 Lucas Ind Plc Fuel injector arrangement
US6685160B2 (en) * 2001-07-30 2004-02-03 Caterpillar Inc Dual solenoid latching actuator and method of using same

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5397055A (en) * 1991-11-01 1995-03-14 Paul; Marius A. Fuel injector system
DE19963920A1 (de) * 1999-12-31 2001-07-12 Bosch Gmbh Robert Injektor für ein Common-Rail-Kraftstoffeinspritzsystem mit schiebergesteuertem Zulaufkanal und direkter Kopplung von Steuerkolben und Düsenkanal
DE10002704A1 (de) * 2000-01-22 2001-08-02 Bosch Gmbh Robert Einspritzeinrichtung und Verfahren zum Einspritzen von Fluid

Also Published As

Publication number Publication date
US20030111548A1 (en) 2003-06-19
JP2003184705A (ja) 2003-07-03
EP1314881A2 (de) 2003-05-28
DE10158028A1 (de) 2003-06-12
US6758417B2 (en) 2004-07-06

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