ATE467756T1 - FUEL INJECTION VALVES FOR INTERNAL COMBUSTION ENGINES - Google Patents

FUEL INJECTION VALVES FOR INTERNAL COMBUSTION ENGINES

Info

Publication number
ATE467756T1
ATE467756T1 AT07704166T AT07704166T ATE467756T1 AT E467756 T1 ATE467756 T1 AT E467756T1 AT 07704166 T AT07704166 T AT 07704166T AT 07704166 T AT07704166 T AT 07704166T AT E467756 T1 ATE467756 T1 AT E467756T1
Authority
AT
Austria
Prior art keywords
valve
fuel injection
internal combustion
combustion engines
injection valves
Prior art date
Application number
AT07704166T
Other languages
German (de)
Inventor
Rolf-Juergen Giersch
Bernd Dittus
Original Assignee
Bosch Gmbh Robert
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 filed Critical Bosch Gmbh Robert
Application granted granted Critical
Publication of ATE467756T1 publication Critical patent/ATE467756T1/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
    • 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
    • F02M61/042—The valves being provided with fuel passages
    • 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
    • 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
    • F02M63/007—Details not provided for in, or of interest apart from, the apparatus of the groups F02M63/0014 - F02M63/0059
    • F02M63/0078—Valve member details, e.g. special shape, hollow or fuel passages in the valve member
    • F02M63/008—Hollow valve members, e.g. members internally guided
    • 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
    • F02M2547/00—Special features for fuel-injection valves actuated by fluid pressure
    • F02M2547/006—Springs assisting hydraulic closing force

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

Fuel injection valve having a valve body (1) in which a bore (3) with a valve needle (7) arranged therein is formed. The valve needle (7) interacts with a valve seat (4), formed in the valve body (1), in such a way that at least one injection opening (10; 10') can be opened or closed as a result. Arranged in the bore (3) is a valve pin (5) which defines together with the valve needle (7) a first control space (25) which can be filled with fuel, wherein the fuel pressure in the first control space (25) acts on the valve needle (7) in such a way that the latter is pressed against the valve seat (4). Formed in the valve pin (5) is a longitudinal passage (22) leading to a second control space (27) in which a variable pressure can be set.
AT07704166T 2006-03-21 2007-01-26 FUEL INJECTION VALVES FOR INTERNAL COMBUSTION ENGINES ATE467756T1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102006012842A DE102006012842A1 (en) 2006-03-21 2006-03-21 Fuel injection valves for internal combustion engines
PCT/EP2007/050775 WO2007107397A1 (en) 2006-03-21 2007-01-26 Fuel injection valves for internal combustion engines

Publications (1)

Publication Number Publication Date
ATE467756T1 true ATE467756T1 (en) 2010-05-15

Family

ID=38169609

Family Applications (1)

Application Number Title Priority Date Filing Date
AT07704166T ATE467756T1 (en) 2006-03-21 2007-01-26 FUEL INJECTION VALVES FOR INTERNAL COMBUSTION ENGINES

Country Status (4)

Country Link
EP (1) EP1999363B1 (en)
AT (1) ATE467756T1 (en)
DE (2) DE102006012842A1 (en)
WO (1) WO2007107397A1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102007035752A1 (en) * 2007-07-31 2009-02-05 Robert Bosch Gmbh Fuel injector with a seated on the cone valve seat of a nozzle needle centering as a guide for the nozzle needle
DE102013212269A1 (en) 2013-06-26 2014-12-31 Robert Bosch Gmbh Fuel injection valve for internal combustion engines
CH709403A1 (en) * 2014-03-25 2015-09-30 Liebherr Machines Bulle Sa Injector and internal combustion engine with a corresponding injector.

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE69922087T2 (en) * 1998-06-24 2005-12-01 Delphi Technologies, Inc., Troy fuel injector
DE10118699A1 (en) * 2001-04-17 2002-10-31 Bosch Gmbh Robert Fuel injection device and fuel system for internal combustion engines, and internal combustion engine
DE10326044A1 (en) * 2003-06-10 2004-12-30 Robert Bosch Gmbh Injection nozzle for internal combustion engines
EP1566538B1 (en) * 2004-02-20 2006-08-09 Delphi Technologies, Inc. Injection nozzle
DE602005005159T2 (en) * 2005-01-19 2009-04-30 Delphi Technologies, Inc., Troy Fuel injection valve

Also Published As

Publication number Publication date
WO2007107397A1 (en) 2007-09-27
EP1999363A1 (en) 2008-12-10
EP1999363B1 (en) 2010-05-12
DE502007003735D1 (en) 2010-06-24
DE102006012842A1 (en) 2007-09-27

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