ATE491091T1 - INJECTOR FOR INJECTING FUEL - Google Patents

INJECTOR FOR INJECTING FUEL

Info

Publication number
ATE491091T1
ATE491091T1 AT07788444T AT07788444T ATE491091T1 AT E491091 T1 ATE491091 T1 AT E491091T1 AT 07788444 T AT07788444 T AT 07788444T AT 07788444 T AT07788444 T AT 07788444T AT E491091 T1 ATE491091 T1 AT E491091T1
Authority
AT
Austria
Prior art keywords
valve piston
valve
injector
shoulder
fuel
Prior art date
Application number
AT07788444T
Other languages
German (de)
Inventor
Nadja Eisenmenger
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 ATE491091T1 publication Critical patent/ATE491091T1/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
    • 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
    • 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
    • F02M63/007—Details not provided for in, or of interest apart from, the apparatus of the groups F02M63/0014 - F02M63/0059
    • F02M63/0073—Pressure balanced valves
    • 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
    • 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
    • F02M2547/003—Valve inserts containing control chamber and valve piston

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 an injector for injecting fuel into a combustion chamber (3) of an internal combustion engine, having an injector housing (9) in which is held a control valve (5) for activating an injection valve element (7) which opens or closes off at least one injection opening (11), wherein the control valve (5) comprises a valve piston (39), by means of which a connection from a control space (25) into a fuel return line (27) can be opened or closed off. The valve piston (39) comprises an annular seat face (41) which can be placed into a seat (43). A shoulder (55; 93) is formed on the valve piston (39), which shoulder (55; 93) is arranged on the high-pressure side of the valve piston (39) in such a way that the pressure force exerted by the fuel on the shoulder (55; 93) assists the closing movement of the valve piston (39).
AT07788444T 2006-10-18 2007-08-15 INJECTOR FOR INJECTING FUEL ATE491091T1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102006049050A DE102006049050A1 (en) 2006-10-18 2006-10-18 Injector for injecting fuel
PCT/EP2007/058470 WO2008046679A1 (en) 2006-10-18 2007-08-15 Injector for injecting fuel

Publications (1)

Publication Number Publication Date
ATE491091T1 true ATE491091T1 (en) 2010-12-15

Family

ID=38717215

Family Applications (1)

Application Number Title Priority Date Filing Date
AT07788444T ATE491091T1 (en) 2006-10-18 2007-08-15 INJECTOR FOR INJECTING FUEL

Country Status (5)

Country Link
EP (1) EP2079922B1 (en)
CN (1) CN101529078B (en)
AT (1) ATE491091T1 (en)
DE (2) DE102006049050A1 (en)
WO (1) WO2008046679A1 (en)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102007011685A1 (en) * 2007-03-09 2008-09-11 Robert Bosch Gmbh Fuel injector with improved control valve
DE102008001425A1 (en) * 2008-04-28 2009-10-29 Robert Bosch Gmbh Fuel injector
DE102009029355A1 (en) * 2009-09-10 2011-03-24 Robert Bosch Gmbh injector
DE102009045335A1 (en) 2009-10-05 2011-04-07 Robert Bosch Gmbh injector
DE102009045995A1 (en) * 2009-10-26 2011-06-09 Robert Bosch Gmbh Fuel injector
EP2333296B1 (en) * 2009-12-10 2013-04-17 Delphi Technologies Holding S.à.r.l. A Valve Member for a Fluid Valve Arrangement
DE102012104531A1 (en) * 2012-05-25 2013-10-24 L'orange Gmbh Valve assembly for fuel injection nozzle, has rod-shaped valve actuator that is provided in sealing boarders at outlet side, and flow throttling device is integrated in rod-shaped valve actuator
DE102012209841A1 (en) 2012-06-12 2013-12-12 Robert Bosch Gmbh Fuel injector for common-rail fuel injection system, has control piston guided in valve unit, which divides control chamber into multiple pressure chambers, where former pressure chamber is arranged between shaft end and control piston
DE102012223166A1 (en) 2012-12-14 2014-06-18 Robert Bosch Gmbh fuel injector
DE102013212140A1 (en) 2013-06-25 2015-01-08 Robert Bosch Gmbh control valve
GB201400650D0 (en) * 2014-01-15 2014-03-05 Delphi Tech Holding Sarl Bobbin with venting conduit
DE102015223168A1 (en) 2015-11-24 2017-05-24 Robert Bosch Gmbh fuel injector
CN110529316B (en) * 2019-08-22 2020-11-03 一汽解放汽车有限公司 Fuel injection valve and engine
CN114060193A (en) * 2020-08-04 2022-02-18 温特图尔汽柴油公司 Fuel injection valve for large diesel engine and large diesel engine

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5947380A (en) * 1997-11-03 1999-09-07 Caterpillar Inc. Fuel injector utilizing flat-seat poppet valves
DE19839581A1 (en) * 1997-11-04 1999-05-06 Lucas Ind Plc Fuel injector
GB2336628A (en) * 1998-04-24 1999-10-27 Lucas Ind Plc A fuel injector, for an I.C. engine, having a three way two position needle control valve
DE19915686A1 (en) * 1999-04-07 2000-10-12 Delphi Tech Inc Switching valve
GB2350662A (en) * 1999-06-03 2000-12-06 Lucas Ind Plc Valve for a fuel injector
DE10118053A1 (en) * 2001-04-11 2002-10-24 Bosch Gmbh Robert Valve for controlling liquids e.g. for vehicle fuel injection system, has hydraulic chamber that transfers control piston movement to actuating piston, which is in hydraulic force equilibrium with valve element closed
ITTO20010969A1 (en) * 2001-10-12 2003-04-12 C R F Societa Con Sortile Per IMPROVEMENTS TO A FUEL INJECTOR FOR ENDOTHERMAL ENGINES, WITH AN ELECTROMAGNETIC DOSING VALVE.
DE10333696A1 (en) * 2003-07-24 2005-02-24 Robert Bosch Gmbh Fuel injector
DE102006021741A1 (en) * 2006-05-10 2007-11-15 Robert Bosch Gmbh Fuel injector with pressure compensated control valve

Also Published As

Publication number Publication date
CN101529078B (en) 2012-07-18
CN101529078A (en) 2009-09-09
DE502007005914D1 (en) 2011-01-20
EP2079922A1 (en) 2009-07-22
WO2008046679A1 (en) 2008-04-24
DE102006049050A1 (en) 2008-04-30
EP2079922B1 (en) 2010-12-08

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