WO2005038235A3 - Fuel injection device, especially for a direct injection internal combustion engine - Google Patents

Fuel injection device, especially for a direct injection internal combustion engine Download PDF

Info

Publication number
WO2005038235A3
WO2005038235A3 PCT/DE2004/001743 DE2004001743W WO2005038235A3 WO 2005038235 A3 WO2005038235 A3 WO 2005038235A3 DE 2004001743 W DE2004001743 W DE 2004001743W WO 2005038235 A3 WO2005038235 A3 WO 2005038235A3
Authority
WO
WIPO (PCT)
Prior art keywords
fuel injection
injection device
combustion engine
internal combustion
valve element
Prior art date
Application number
PCT/DE2004/001743
Other languages
German (de)
French (fr)
Other versions
WO2005038235A2 (en
Inventor
Siegfried Ruthardt
Holger Rapp
Original Assignee
Bosch Gmbh Robert
Siegfried Ruthardt
Holger Rapp
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 Bosch Gmbh Robert, Siegfried Ruthardt, Holger Rapp filed Critical Bosch Gmbh Robert
Priority to DE502004005391T priority Critical patent/DE502004005391D1/en
Priority to EP04762588A priority patent/EP1671029B1/en
Publication of WO2005038235A2 publication Critical patent/WO2005038235A2/en
Publication of WO2005038235A3 publication Critical patent/WO2005038235A3/en

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

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

The invention relates to a fuel injection device (18) comprising a housing (28). The housing is provided with a housing recess (30) in which a valve element (48) is located. At least one fuel outlet channel (32) is associated with said valve element. The device also comprises a sleeve piece (34) that is coaxial to the valve element (48) and that is located on the valve element (48). The fuel injection device (18) is characterized in that it comprises alignment means (38) which radially align the sleeve piece (34) relative to the housing recess (30) and that the valve element (48) is guided in the sleeve piece (34).
PCT/DE2004/001743 2003-09-23 2004-08-04 Fuel injection device, especially for a direct injection internal combustion engine WO2005038235A2 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DE502004005391T DE502004005391D1 (en) 2003-09-23 2004-08-04 FUEL INJECTION DEVICE, ESPECIALLY FOR AN INTERNAL COMBUSTION ENGINE WITH FUEL DIRECT INJECTION
EP04762588A EP1671029B1 (en) 2003-09-23 2004-08-04 Fuel injection device, especially for a direct injection internal combustion engine

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10346222.8 2003-09-23
DE2003146222 DE10346222A1 (en) 2003-09-23 2003-09-23 Fuel injection device, especially for internal combustion engine with direct injection, has alignment arrangement that aligns sleeve part radially relative to housing recess and valve element is guided in sleeve part

Publications (2)

Publication Number Publication Date
WO2005038235A2 WO2005038235A2 (en) 2005-04-28
WO2005038235A3 true WO2005038235A3 (en) 2006-01-26

Family

ID=34306271

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DE2004/001743 WO2005038235A2 (en) 2003-09-23 2004-08-04 Fuel injection device, especially for a direct injection internal combustion engine

Country Status (3)

Country Link
EP (1) EP1671029B1 (en)
DE (2) DE10346222A1 (en)
WO (1) WO2005038235A2 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102004024527A1 (en) * 2004-05-18 2005-12-15 Robert Bosch Gmbh Fuel injection system
DE102005039688A1 (en) * 2005-08-22 2007-03-01 Siemens Ag Nozzle assembly for injection valve, has casing arranged, such that flexural rigidity of casing is varied over axial length of housing and change of gap measure counteracts based on fluid pressure, where is formed between body and needle
JP4428357B2 (en) 2006-04-03 2010-03-10 株式会社デンソー Fuel injection valve
DE102006021491A1 (en) 2006-05-09 2007-11-15 Robert Bosch Gmbh Fuel injector with directly operable nozzle needle
DE102008005523A1 (en) * 2008-01-23 2009-07-30 Robert Bosch Gmbh fuel injector
DE102008061400A1 (en) * 2008-12-10 2010-06-17 Man Diesel Se Fuel injection valve for an internal combustion engine

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB809044A (en) * 1955-09-19 1959-02-18 Licencia Talalmanyokat Improvements in or relating to fuel injectors for diesel engines
US5842640A (en) * 1994-06-06 1998-12-01 Ganser-Hydromag Fuel injection valve for internal combustion engines
DE10122256A1 (en) * 2001-05-08 2002-11-21 Bosch Gmbh Robert Fuel injection device for internal combustion engines, in particular common rail injector, and fuel system and internal combustion engine

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB809044A (en) * 1955-09-19 1959-02-18 Licencia Talalmanyokat Improvements in or relating to fuel injectors for diesel engines
US5842640A (en) * 1994-06-06 1998-12-01 Ganser-Hydromag Fuel injection valve for internal combustion engines
DE10122256A1 (en) * 2001-05-08 2002-11-21 Bosch Gmbh Robert Fuel injection device for internal combustion engines, in particular common rail injector, and fuel system and internal combustion engine

Also Published As

Publication number Publication date
EP1671029B1 (en) 2007-10-31
DE502004005391D1 (en) 2007-12-13
WO2005038235A2 (en) 2005-04-28
DE10346222A1 (en) 2005-04-14
EP1671029A2 (en) 2006-06-21

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