EP2206912A3 - Kraftstoff-Injektor - Google Patents

Kraftstoff-Injektor Download PDF

Info

Publication number
EP2206912A3
EP2206912A3 EP09169850A EP09169850A EP2206912A3 EP 2206912 A3 EP2206912 A3 EP 2206912A3 EP 09169850 A EP09169850 A EP 09169850A EP 09169850 A EP09169850 A EP 09169850A EP 2206912 A3 EP2206912 A3 EP 2206912A3
Authority
EP
European Patent Office
Prior art keywords
volume
fuel injector
injector
coupling
marginally
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
EP09169850A
Other languages
English (en)
French (fr)
Other versions
EP2206912B1 (de
EP2206912A2 (de
Inventor
Matthias Burger
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 EP2206912A2 publication Critical patent/EP2206912A2/de
Publication of EP2206912A3 publication Critical patent/EP2206912A3/de
Application granted granted Critical
Publication of EP2206912B1 publication Critical patent/EP2206912B1/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
    • 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
    • F02M61/167—Means for compensating clearance or thermal expansion
    • 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
    • F02M63/02—Fuel-injection apparatus having several injectors fed by a common pumping element, or having several pumping elements feeding a common injector; Fuel-injection apparatus having provisions for cutting-out pumps, pumping elements, or injectors; Fuel-injection apparatus having provisions for variably interconnecting pumping elements and injectors alternatively
    • F02M63/0225—Fuel-injection apparatus having a common rail feeding several injectors ; Means for varying pressure in common rails; Pumps feeding common rails

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 Common-Rail-Injektor, zum Einspritzen von Kraftstoff in einen Brennraum einer Brennkraftmaschine, mit einem zwischen einer Schließstellung und einer Öffnungsstellung verstellbaren, mehrteiligen Einspritzventilelement (18), umfassend ein erstes und mindestens ein relativ zu dem ersten Teil (19) verstellbares zweites Teil (24), die über ein hydraulisches Kopplervolumen (50) miteinander gekoppelt sind. Erfindungsgemäß ist vorgesehen, dass das erste Teil (19) im zweiten Teil (24) oder das zweite Teil (24) im ersten Teil (19) geführt ist und dass das Kopplervolumen (50) mit einem Injektorvolumen (12) über mindestens eine Drosselanordnung (52) verbunden ist, die derart ausgebildet ist, dass der Durchflussvolumenstrom mit steigender Druckdifferenz zwischen Kopplervolumen (50) und Injektorvolumen (12) lediglich unterproportional zunimmt.
EP09169850A 2009-01-13 2009-09-09 Kraftstoff-Injektor Not-in-force EP2206912B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102009000181A DE102009000181A1 (de) 2009-01-13 2009-01-13 Kraftstoff-Injektor

Publications (3)

Publication Number Publication Date
EP2206912A2 EP2206912A2 (de) 2010-07-14
EP2206912A3 true EP2206912A3 (de) 2010-07-21
EP2206912B1 EP2206912B1 (de) 2011-08-03

Family

ID=42124568

Family Applications (1)

Application Number Title Priority Date Filing Date
EP09169850A Not-in-force EP2206912B1 (de) 2009-01-13 2009-09-09 Kraftstoff-Injektor

Country Status (4)

Country Link
US (1) US8302888B2 (de)
EP (1) EP2206912B1 (de)
AT (1) ATE519031T1 (de)
DE (1) DE102009000181A1 (de)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102011015753A1 (de) * 2011-03-31 2012-10-04 Raphael Füchslin Einspritzventil
DE102012220657A1 (de) 2012-11-13 2014-05-15 Robert Bosch Gmbh Brennstoffeinspritzventil
JP6145652B2 (ja) * 2014-01-06 2017-06-14 株式会社Ｓｏｋｅｎ 燃料噴射弁
GB201412086D0 (en) * 2014-07-08 2014-08-20 Delphi International Operations Luxembourg S.�.R.L. Fuel injector for an internal combustion engine
DE102014215749A1 (de) * 2014-08-08 2016-02-11 Continental Automotive Gmbh Drosseleinrichtung zum Steuern einer einer Kraftstoff-Einspritzdüse zuzuführenden Kraftstoffmenge sowie Einspritzeinrichtung
CN104533683B (zh) * 2014-11-26 2017-01-25 中国北方发动机研究所(天津) 一种高压共轨喷油器滑阀结构
US11506162B2 (en) * 2020-11-17 2022-11-22 Caterpillar Inc. Trapped volume split check assembly in fuel injector

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0690223A2 (de) * 1994-07-01 1996-01-03 ELASIS SISTEMA RICERCA FIAT NEL MEZZOGIORNO Società Consortile per Azioni Vorrichtung zum Einstellen des Nadelhubes eines Kraftstoffeinspritzventils
WO1999049209A1 (de) * 1998-03-26 1999-09-30 Mtu Motoren- Und Turbinen-Union Friedrichshafen Gmbh Hochdruck-kolbenzylindereinheit
DE102007014359A1 (de) * 2006-09-01 2008-03-06 Robert Bosch Gmbh Injektor für eine Kraftstoffeinspritzanlage
DE102007001363A1 (de) * 2007-01-09 2008-07-10 Robert Bosch Gmbh Injektor zum Einspritzen von Kraftstoff in Brennräume von Brennkraftmaschinen

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10104618A1 (de) * 2001-02-02 2002-08-08 Bosch Gmbh Robert Ventil zum Steuern von Flüssigkeiten
ES2344695T3 (es) * 2001-07-03 2010-09-03 Crt Common Rail Technologies Ag Valvula de inyeccion de combustible para motores de combustion interna.
DE102004024527A1 (de) * 2004-05-18 2005-12-15 Robert Bosch Gmbh Kraftstoffeinspritzeinrichtung
DE102005026514B4 (de) * 2005-02-18 2008-12-24 Robert Bosch Gmbh Einspritzdüse
DE102005059169A1 (de) * 2005-12-12 2007-06-14 Robert Bosch Gmbh Kraftstoffinjektor mit direkt betätigbarem Einspritzventilglied
WO2007098621A1 (de) * 2006-03-03 2007-09-07 Ganser-Hydromag Ag Brennstoffeinspritzventil für verbrennungskraftmaschinen
DE102006036780A1 (de) * 2006-08-07 2008-02-21 Robert Bosch Gmbh Krafstoffinjektor mit direkter Nadelsteuerung und Servoventil-Unterstützung
DE102008040680A1 (de) * 2008-07-24 2010-01-28 Robert Bosch Gmbh Kraftstoff-Injektor

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0690223A2 (de) * 1994-07-01 1996-01-03 ELASIS SISTEMA RICERCA FIAT NEL MEZZOGIORNO Società Consortile per Azioni Vorrichtung zum Einstellen des Nadelhubes eines Kraftstoffeinspritzventils
WO1999049209A1 (de) * 1998-03-26 1999-09-30 Mtu Motoren- Und Turbinen-Union Friedrichshafen Gmbh Hochdruck-kolbenzylindereinheit
DE102007014359A1 (de) * 2006-09-01 2008-03-06 Robert Bosch Gmbh Injektor für eine Kraftstoffeinspritzanlage
DE102007001363A1 (de) * 2007-01-09 2008-07-10 Robert Bosch Gmbh Injektor zum Einspritzen von Kraftstoff in Brennräume von Brennkraftmaschinen

Also Published As

Publication number Publication date
DE102009000181A1 (de) 2010-07-15
EP2206912B1 (de) 2011-08-03
US20100175665A1 (en) 2010-07-15
EP2206912A2 (de) 2010-07-14
US8302888B2 (en) 2012-11-06
ATE519031T1 (de) 2011-08-15

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