EP1900933A3 - Kraftstoffeinspritzventil - Google Patents

Kraftstoffeinspritzventil Download PDF

Info

Publication number
EP1900933A3
EP1900933A3 EP07016402A EP07016402A EP1900933A3 EP 1900933 A3 EP1900933 A3 EP 1900933A3 EP 07016402 A EP07016402 A EP 07016402A EP 07016402 A EP07016402 A EP 07016402A EP 1900933 A3 EP1900933 A3 EP 1900933A3
Authority
EP
European Patent Office
Prior art keywords
injection valve
fuel injection
bore
housing
fuel
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
EP07016402A
Other languages
English (en)
French (fr)
Other versions
EP1900933B1 (de
EP1900933A2 (de
Inventor
Bernd Hoss
Aschraf Dr. Abdelfattah
Stefan Henrici
Bodo Dr. Durst
Stephan Missy
Florian Dr. Preuss
Wolfgang Dr. Kern
Erik Schünemann
Gottfried Drexler
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.)
Bayerische Motoren Werke AG
Original Assignee
Bayerische Motoren Werke AG
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 Bayerische Motoren Werke AG filed Critical Bayerische Motoren Werke AG
Publication of EP1900933A2 publication Critical patent/EP1900933A2/de
Publication of EP1900933A3 publication Critical patent/EP1900933A3/de
Application granted granted Critical
Publication of EP1900933B1 publication Critical patent/EP1900933B1/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
    • 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
    • F02M61/08—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 the valves opening in direction of fuel flow
    • 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
    • F02M61/18—Injection nozzles, e.g. having valve seats; Details of valve member seated ends, not otherwise provided for
    • 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
    • F02M2200/00—Details of fuel-injection apparatus, not otherwise provided for
    • F02M2200/06—Fuel-injection apparatus having means for preventing coking, e.g. of fuel injector discharge orifices or valve needles
    • 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
    • F02M2200/00—Details of fuel-injection apparatus, not otherwise provided for
    • F02M2200/80—Fuel injection apparatus manufacture, repair or assembly
    • F02M2200/8069—Fuel injection apparatus manufacture, repair or assembly involving removal of material from the fuel apparatus, e.g. by punching, hydro-erosion or mechanical operation
    • 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
    • F02M2200/00—Details of fuel-injection apparatus, not otherwise provided for
    • F02M2200/90—Selection of particular materials
    • F02M2200/9038—Coatings

Landscapes

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

Abstract

Kraftstoffeinspritzventil (1), insbesondere für eine Brennkraftmaschine, mit einem Gehäuse (2) mit einer Bohrung (3) durch die Kraftstoff förderbar ist, wobei in der Bohrung (3) ein von einem Stellelement betätigbares Verschlusselement (4) mit einem gehäuseseitigen Verschlusskörper (5), der eine Strömungsabrisskante (6) für eingespritzten Kraftstoff aufweist, angeordnet ist, mit dem bei einer Lageveränderung aus dem Gehäuse (1) heraus die Bohrung (3) gegenüber einer Umgebung (7) des Kraftstoffeinspritzventils (1) öffenbar ist, wobei der Verschlusskörper (5) zumindest im Bereich der Strömungsabrisskante (6) auf der der Umgebung (7) zugewandten Seite eine Rauheit (8) aufweist.
Mit der erfindungsgemäßen Ausgestaltung des Kraftstoffeinspritzventils wird eine Veränderung der Gemischaufbereitung über die Lebensdauer des Kraftstoffeinspritzventils vermieden.
EP20070016402 2006-09-09 2007-08-22 Kraftstoffeinspritzventil Not-in-force EP1900933B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE200610042444 DE102006042444A1 (de) 2006-09-09 2006-09-09 Kraftstoffeinspritzventil

Publications (3)

Publication Number Publication Date
EP1900933A2 EP1900933A2 (de) 2008-03-19
EP1900933A3 true EP1900933A3 (de) 2010-10-20
EP1900933B1 EP1900933B1 (de) 2011-11-30

Family

ID=38739487

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20070016402 Not-in-force EP1900933B1 (de) 2006-09-09 2007-08-22 Kraftstoffeinspritzventil

Country Status (2)

Country Link
EP (1) EP1900933B1 (de)
DE (1) DE102006042444A1 (de)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011029941A1 (de) * 2009-09-14 2011-03-17 Continental Automotive Gmbh Düsenbaugruppe für ein einspritzventil und einspritzventil
DE102011007876A1 (de) * 2011-04-21 2012-10-25 Robert Bosch Gmbh Komponente, insbesondere eines Kraftstoffeinspritzsystems, mit einer Oberfläche

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6267307B1 (en) * 1997-12-12 2001-07-31 Magneti Marelli France Fuel injector with anti-scale ceramic coating for direct injection
DE10012969A1 (de) * 2000-03-16 2001-11-08 Daimler Chrysler Ag Einspritzdüse und ein Verfahren zur Bildung eines Kraftstoff-Luftgemischs
JP2002364492A (ja) * 2001-05-31 2002-12-18 Unisia Jecs Corp 燃料噴射弁
DE10344584A1 (de) * 2003-09-25 2005-04-28 Bosch Gmbh Robert Brennstoffeinspritzventil
WO2005042968A1 (de) * 2003-10-29 2005-05-12 Robert Bosch Gmbh Brennstoffeinspritzventil

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4408722A (en) * 1981-05-29 1983-10-11 General Motors Corporation Fuel injection nozzle with grooved poppet valve
DE19726727A1 (de) * 1997-06-24 1999-01-07 Bosch Gmbh Robert Brennstoffeinspritzventil oder Brennstoffeinspritzdüse

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6267307B1 (en) * 1997-12-12 2001-07-31 Magneti Marelli France Fuel injector with anti-scale ceramic coating for direct injection
DE10012969A1 (de) * 2000-03-16 2001-11-08 Daimler Chrysler Ag Einspritzdüse und ein Verfahren zur Bildung eines Kraftstoff-Luftgemischs
JP2002364492A (ja) * 2001-05-31 2002-12-18 Unisia Jecs Corp 燃料噴射弁
DE10344584A1 (de) * 2003-09-25 2005-04-28 Bosch Gmbh Robert Brennstoffeinspritzventil
WO2005042968A1 (de) * 2003-10-29 2005-05-12 Robert Bosch Gmbh Brennstoffeinspritzventil

Also Published As

Publication number Publication date
EP1900933B1 (de) 2011-11-30
DE102006042444A1 (de) 2008-03-27
EP1900933A2 (de) 2008-03-19

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