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DE10348928A1 - Fuel injection device for automobile internal combustion engine has throttle in path of fuel to injection opening for reducing force acting on jet needle in opening direction - Google Patents

Fuel injection device for automobile internal combustion engine has throttle in path of fuel to injection opening for reducing force acting on jet needle in opening direction Download PDF

Info

Publication number
DE10348928A1
DE10348928A1 DE2003148928 DE10348928A DE10348928A1 DE 10348928 A1 DE10348928 A1 DE 10348928A1 DE 2003148928 DE2003148928 DE 2003148928 DE 10348928 A DE10348928 A DE 10348928A DE 10348928 A1 DE10348928 A1 DE 10348928A1
Authority
DE
Germany
Prior art keywords
fuel
opening
throttle
path
force acting
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.)
Ceased
Application number
DE2003148928
Other languages
German (de)
Inventor
Patrick Mattes
Friedrich Boecking
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
Priority to DE2003148928 priority Critical patent/DE10348928A1/en
Publication of DE10348928A1 publication Critical patent/DE10348928A1/en
Ceased legal-status Critical Current

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
    • F02M61/042—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
    • 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
    • F02M61/168—Assembling; Disassembling; Manufacturing; Adjusting
    • 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
    • F02M61/18—Injection nozzles, e.g. having valve seats; Details of valve member seated ends, not otherwise provided for
    • F02M61/188—Spherical or partly spherical shaped valve member ends
    • 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
    • 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
    • F02M2200/28—Details of throttles in fuel-injection apparatus
    • 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
    • F02M2200/00—Details of fuel-injection apparatus, not otherwise provided for
    • F02M2200/80—Fuel injection apparatus manufacture, repair or assembly
    • F02M2200/8092—Fuel injection apparatus manufacture, repair or assembly adjusting or calibration
    • 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
    • F02M63/0031—Valves characterized by the type of valves, e.g. special valve member details, valve seat details, valve housing details
    • F02M63/004—Sliding valves, e.g. spool valves, i.e. whereby the closing member has a sliding movement along a seat for opening and closing
    • 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
    • F02M63/0031—Valves characterized by the type of valves, e.g. special valve member details, valve seat details, valve housing details
    • F02M63/0043—Two-way valves

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Fuel-Injection Apparatus (AREA)

Abstract

The fuel injection device (1) has a fuel injection valve (9) provided with a jet needle (11) for injecting fuel into the engine, the fuel supplied at high pressure via a fuel line (5) coupled to a control chamber (43) in which the fuel pressure is controlled via a control valve (41). The fuel injection valve has a throttle (60) in the path of the fuel supplied to the injection opening, for reducing the force acting on the valve needle in the opening direction.
DE2003148928 2003-10-18 2003-10-18 Fuel injection device for automobile internal combustion engine has throttle in path of fuel to injection opening for reducing force acting on jet needle in opening direction Ceased DE10348928A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE2003148928 DE10348928A1 (en) 2003-10-18 2003-10-18 Fuel injection device for automobile internal combustion engine has throttle in path of fuel to injection opening for reducing force acting on jet needle in opening direction

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2003148928 DE10348928A1 (en) 2003-10-18 2003-10-18 Fuel injection device for automobile internal combustion engine has throttle in path of fuel to injection opening for reducing force acting on jet needle in opening direction

Publications (1)

Publication Number Publication Date
DE10348928A1 true DE10348928A1 (en) 2005-05-12

Family

ID=34428501

Family Applications (1)

Application Number Title Priority Date Filing Date
DE2003148928 Ceased DE10348928A1 (en) 2003-10-18 2003-10-18 Fuel injection device for automobile internal combustion engine has throttle in path of fuel to injection opening for reducing force acting on jet needle in opening direction

Country Status (1)

Country Link
DE (1) DE10348928A1 (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1990532A1 (en) * 2007-05-07 2008-11-12 Robert Bosch GmbH Fuel injector for a combustion engine with common rail injection system
EP2110541A1 (en) * 2008-04-18 2009-10-21 MAGNETI MARELLI POWERTRAIN S.p.A. Fuel injector with direct shutter actuation for internal combustion engines
WO2010081574A1 (en) * 2009-01-14 2010-07-22 Robert Bosch Gmbh Fuel injector for internal combustion engines
EP2216542A1 (en) * 2009-02-06 2010-08-11 Continental Automotive GmbH Valve assembly for an injection valve and injection valve
WO2014206610A1 (en) * 2013-06-25 2014-12-31 Robert Bosch Gmbh Nozzle assembly for a fuel injector, and fuel injector
EP2924275A1 (en) * 2014-03-25 2015-09-30 Liebherr Machines Bulle SA Injector with increased flow cross section
GB2491147B (en) * 2011-05-24 2017-07-05 Gm Global Tech Operations Llc Fuel injection system comprising fuel injectors linked in series

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1990532A1 (en) * 2007-05-07 2008-11-12 Robert Bosch GmbH Fuel injector for a combustion engine with common rail injection system
EP2110541A1 (en) * 2008-04-18 2009-10-21 MAGNETI MARELLI POWERTRAIN S.p.A. Fuel injector with direct shutter actuation for internal combustion engines
US8061632B2 (en) 2008-04-18 2011-11-22 MAGNETI MARELLI S.p.A. Fuel injector with direct shutter actuation for internal combustion engines
WO2010081574A1 (en) * 2009-01-14 2010-07-22 Robert Bosch Gmbh Fuel injector for internal combustion engines
EP2216542A1 (en) * 2009-02-06 2010-08-11 Continental Automotive GmbH Valve assembly for an injection valve and injection valve
GB2491147B (en) * 2011-05-24 2017-07-05 Gm Global Tech Operations Llc Fuel injection system comprising fuel injectors linked in series
WO2014206610A1 (en) * 2013-06-25 2014-12-31 Robert Bosch Gmbh Nozzle assembly for a fuel injector, and fuel injector
EP2924275A1 (en) * 2014-03-25 2015-09-30 Liebherr Machines Bulle SA Injector with increased flow cross section

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R016 Response to examination communication
R002 Refusal decision in examination/registration proceedings
R003 Refusal decision now final