ATE521803T1 - FUEL INJECTOR WITH AN IMPROVED VERSION OF A CONTROL VALVE FOR CONTROLLING A NOZZLE NEEDLE - Google Patents

FUEL INJECTOR WITH AN IMPROVED VERSION OF A CONTROL VALVE FOR CONTROLLING A NOZZLE NEEDLE

Info

Publication number
ATE521803T1
ATE521803T1 AT08100932T AT08100932T ATE521803T1 AT E521803 T1 ATE521803 T1 AT E521803T1 AT 08100932 T AT08100932 T AT 08100932T AT 08100932 T AT08100932 T AT 08100932T AT E521803 T1 ATE521803 T1 AT E521803T1
Authority
AT
Austria
Prior art keywords
needle
controlling
control valve
fuel injector
nozzle needle
Prior art date
Application number
AT08100932T
Other languages
German (de)
Inventor
Hans-Christoph Magel
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 ATE521803T1 publication Critical patent/ATE521803T1/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
    • 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
    • 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
    • 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
    • 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
    • F02M2200/00—Details of fuel-injection apparatus, not otherwise provided for
    • F02M2200/30—Fuel-injection apparatus having mechanical parts, the movement of which is damped
    • F02M2200/304—Fuel-injection apparatus having mechanical parts, the movement of which is damped using hydraulic means

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

An automotive fuel injection assembly (1) has a needle (4) that rises and falls within a jet (3) housing (2) to open and close a jet (5). A valve regulates the needle motion by side contact with a pressure pin (8). The needle (7) end geometry makes contact with the needle valve seat (9) but leaves an aperture that dampens fluid flow to the valve needle (7).
AT08100932T 2007-03-08 2008-01-25 FUEL INJECTOR WITH AN IMPROVED VERSION OF A CONTROL VALVE FOR CONTROLLING A NOZZLE NEEDLE ATE521803T1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102007011317A DE102007011317A1 (en) 2007-03-08 2007-03-08 Fuel injector with an improved version of a control valve for controlling a nozzle needle

Publications (1)

Publication Number Publication Date
ATE521803T1 true ATE521803T1 (en) 2011-09-15

Family

ID=39388333

Family Applications (1)

Application Number Title Priority Date Filing Date
AT08100932T ATE521803T1 (en) 2007-03-08 2008-01-25 FUEL INJECTOR WITH AN IMPROVED VERSION OF A CONTROL VALVE FOR CONTROLLING A NOZZLE NEEDLE

Country Status (3)

Country Link
EP (1) EP1967727B1 (en)
AT (1) ATE521803T1 (en)
DE (1) DE102007011317A1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102007044356A1 (en) * 2007-09-17 2009-03-19 Robert Bosch Gmbh injector
DE102009045434A1 (en) * 2009-10-07 2011-04-14 Robert Bosch Gmbh Fuel injection valve
DE102010003202A1 (en) * 2010-03-24 2011-09-29 Robert Bosch Gmbh Common rail injector with pressure compensated switching valve and additional storage volume
DE102011077618A1 (en) * 2011-06-16 2012-12-20 Robert Bosch Gmbh Injector, in particular fuel injector for an internal combustion engine

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE602004017593D1 (en) * 2004-06-30 2008-12-18 Fiat Ricerche Fuel injection device for an internal combustion engine
EP1719904A1 (en) * 2005-05-02 2006-11-08 Robert Bosch Gmbh Fuel injector
DE102006050032A1 (en) * 2006-10-24 2008-04-30 Robert Bosch Gmbh Injector, particularly common-rail injector, for injecting fuel into combustion chambers of internal-combustion engines, has control valve, which influences pressure in control chamber

Also Published As

Publication number Publication date
EP1967727A3 (en) 2009-07-01
DE102007011317A1 (en) 2008-09-11
EP1967727A2 (en) 2008-09-10
EP1967727B1 (en) 2011-08-24

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