EP2119903A3 - Kraftstoff-Injektor sowie Brennkraftmaschine - Google Patents

Kraftstoff-Injektor sowie Brennkraftmaschine Download PDF

Info

Publication number
EP2119903A3
EP2119903A3 EP09100190A EP09100190A EP2119903A3 EP 2119903 A3 EP2119903 A3 EP 2119903A3 EP 09100190 A EP09100190 A EP 09100190A EP 09100190 A EP09100190 A EP 09100190A EP 2119903 A3 EP2119903 A3 EP 2119903A3
Authority
EP
European Patent Office
Prior art keywords
fuel
injector
housing part
control valve
fuel injector
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
EP09100190A
Other languages
English (en)
French (fr)
Other versions
EP2119903B1 (de
EP2119903A2 (de
Inventor
Hans-Christoph Magel
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 EP2119903A2 publication Critical patent/EP2119903A2/de
Publication of EP2119903A3 publication Critical patent/EP2119903A3/de
Application granted granted Critical
Publication of EP2119903B1 publication Critical patent/EP2119903B1/de
Ceased 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
    • F02M53/00—Fuel-injection apparatus characterised by having heating, cooling or thermally-insulating means
    • F02M53/04—Injectors with heating, cooling, or thermally-insulating means
    • F02M53/043—Injectors with heating, cooling, or thermally-insulating means with cooling means other than air cooling
    • 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

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

Die Erfindung betrifft einen Kraftstoff-Injektor (1), insbesondere einen Common-Rail-Injektor, zum Einspritzen von Kraftstoff in einen Brennraum einer Brennkraftmaschine, mit mindestens einem Gehäuseteil (11) und mit einem axial verstellbaren Einspritzventilelement (12), welches mittels eines Steuerventils (31) schaltbar ist, welches wiederum mit einem Aktuator (37) betätigbar ist, wobei bei geöffnetem Steuerventil (31) eine Kraftstoffmenge aus einem Hochdruckbereich in einen mit einem Injektorrücklaufanschluss (7) versehenen Niederdruckbereich (34) des Kraftstoff-Injektors (1) strömt. Erfindungsgemäß ist vorgesehen, dass im Gehäuseteil (11) mindestens eine dem Steuerventil (31) hydraulisch nachgeordnete Kühlbohrung (45, 48) vorgesehen ist, die derart angeordnet ist, dass durch diese zumindest ein Teilvolumenstrom der Kraftstoffmenge vor Erreichen des Injektorrücklaufanschlusses (7) strömen und dabei Wärmeenergie an das Gehäuseteil (11) abgeben kann.
EP09100190.9A 2008-05-14 2009-03-17 Kraftstoff-Injektor sowie Brennkraftmaschine Ceased EP2119903B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102008001735A DE102008001735A1 (de) 2008-05-14 2008-05-14 Kraftstoff-Injektor sowie Brennkraftmaschine

Publications (3)

Publication Number Publication Date
EP2119903A2 EP2119903A2 (de) 2009-11-18
EP2119903A3 true EP2119903A3 (de) 2010-01-06
EP2119903B1 EP2119903B1 (de) 2017-05-31

Family

ID=40793638

Family Applications (1)

Application Number Title Priority Date Filing Date
EP09100190.9A Ceased EP2119903B1 (de) 2008-05-14 2009-03-17 Kraftstoff-Injektor sowie Brennkraftmaschine

Country Status (2)

Country Link
EP (1) EP2119903B1 (de)
DE (1) DE102008001735A1 (de)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7937936B2 (en) * 2007-01-16 2011-05-10 Deere & Company Vehicle exhaust component arrangement
AT512422B1 (de) * 2012-02-07 2016-01-15 Bosch Gmbh Robert Vorrichtung zum einspritzen von kraftstoff in den brennraum einer brennkraftmaschine
EP2711537B1 (de) * 2012-09-25 2017-08-16 Delphi International Operations Luxembourg S.à r.l. Kraftstoffeinspritzdüse

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1046949B (de) * 1954-02-01 1958-12-18 Modag Motorenfabrik Darmstadt Brennstoffeinspritzanlage mit Pumpe und gekuehltem Einspritzventil
GB2093116A (en) * 1981-02-17 1982-08-25 Bosch Gmbh Robert A fuel cooled engine fuel injection nozzle
JPS60240865A (ja) * 1984-05-16 1985-11-29 Automob Antipollut & Saf Res Center 電磁式燃料噴射弁
DE19619523A1 (de) * 1996-05-15 1997-11-20 Bosch Gmbh Robert Kraftstoffeinspritzventil für Hochdruckeinspritzung
US5740782A (en) * 1996-05-20 1998-04-21 Lowi, Jr.; Alvin Positive-displacement-metering, electro-hydraulic fuel injection system
US20040211846A1 (en) * 2003-04-25 2004-10-28 Cummins Inc. Fuel injector having a cooled lower nozzle body

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5148987A (en) 1990-07-05 1992-09-22 Yamaha Hatsudoki Kabushiki Kaisha High pressure fuel injection device for engine
JP2004150276A (ja) 2002-10-28 2004-05-27 Denso Corp インジェクタ及びインジェクタ冷却システム

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1046949B (de) * 1954-02-01 1958-12-18 Modag Motorenfabrik Darmstadt Brennstoffeinspritzanlage mit Pumpe und gekuehltem Einspritzventil
GB2093116A (en) * 1981-02-17 1982-08-25 Bosch Gmbh Robert A fuel cooled engine fuel injection nozzle
JPS60240865A (ja) * 1984-05-16 1985-11-29 Automob Antipollut & Saf Res Center 電磁式燃料噴射弁
DE19619523A1 (de) * 1996-05-15 1997-11-20 Bosch Gmbh Robert Kraftstoffeinspritzventil für Hochdruckeinspritzung
US5740782A (en) * 1996-05-20 1998-04-21 Lowi, Jr.; Alvin Positive-displacement-metering, electro-hydraulic fuel injection system
US20040211846A1 (en) * 2003-04-25 2004-10-28 Cummins Inc. Fuel injector having a cooled lower nozzle body

Also Published As

Publication number Publication date
EP2119903B1 (de) 2017-05-31
DE102008001735A1 (de) 2009-11-19
EP2119903A2 (de) 2009-11-18

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