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DE10338228A1 - Fuel injection valve for internal combustion engines - Google Patents

Fuel injection valve for internal combustion engines Download PDF

Info

Publication number
DE10338228A1
DE10338228A1 DE2003138228 DE10338228A DE10338228A1 DE 10338228 A1 DE10338228 A1 DE 10338228A1 DE 2003138228 DE2003138228 DE 2003138228 DE 10338228 A DE10338228 A DE 10338228A DE 10338228 A1 DE10338228 A1 DE 10338228A1
Authority
DE
Germany
Prior art keywords
valve
control
needle
chamber
control chamber
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.)
Withdrawn
Application number
DE2003138228
Other languages
German (de)
Inventor
Detlev Potz
Peter Boehland
Thomas Kuegler
Predrag Nunic
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 DE2003138228 priority Critical patent/DE10338228A1/en
Priority to PCT/DE2004/001306 priority patent/WO2005019638A1/en
Priority to DE502004006203T priority patent/DE502004006203D1/en
Priority to EP04738755A priority patent/EP1658427B1/en
Publication of DE10338228A1 publication Critical patent/DE10338228A1/en
Withdrawn legal-status Critical Current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
    • 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
    • F02M63/0026—Valves characterised by the valve actuating means electrical, e.g. using solenoid using piezoelectric or magnetostrictive actuators
    • 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
    • F02M45/00—Fuel-injection apparatus characterised by having a cyclic delivery of specific time/pressure or time/quantity relationship
    • F02M45/02—Fuel-injection apparatus characterised by having a cyclic delivery of specific time/pressure or time/quantity relationship with each cyclic delivery being separated into two or more parts
    • F02M45/04—Fuel-injection apparatus characterised by having a cyclic delivery of specific time/pressure or time/quantity relationship with each cyclic delivery being separated into two or more parts with a small initial part, e.g. initial part for partial load and initial and main part for full load
    • F02M45/08—Injectors peculiar thereto
    • F02M45/086—Having more than one injection-valve controlling discharge orifices
    • 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
    • F02M45/00—Fuel-injection apparatus characterised by having a cyclic delivery of specific time/pressure or time/quantity relationship
    • F02M45/02—Fuel-injection apparatus characterised by having a cyclic delivery of specific time/pressure or time/quantity relationship with each cyclic delivery being separated into two or more parts
    • F02M45/10—Other injectors with multiple-part delivery, e.g. with vibrating 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
    • 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
    • F02M2200/00—Details of fuel-injection apparatus, not otherwise provided for
    • F02M2200/46—Valves, e.g. injectors, with concentric 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
    • F02M61/18—Injection nozzles, e.g. having valve seats; Details of valve member seated ends, not otherwise provided for
    • F02M61/1806—Injection nozzles, e.g. having valve seats; Details of valve member seated ends, not otherwise provided for characterised by the arrangement of discharge orifices, e.g. orientation or size

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

Kraftstoffeinspritzventil mit einem Gehäuse (1), in dem ein Ventilsitz (20) ausgebildet ist und eine Ventilaußennadel (17) und eine Ventilinnennadel (15) angeordnet sind. Durch den Druck in einem äußeren Steuerraum (56) ist eine Schließkraft auf die Ventilaußennadel (17) ausübbar und durch den Druck in einem inneren Steuerraum (54) eine entsprechende Schließkraft auf die Ventilinnennadel (15). Der innere Steuerraum (54) ist über eine innere Ablaufdrossel (51) und der äußere Steuerraum (56) über eine äußere Ablaufdrossel (49) mit einem Steuerventilraum (60) eines Steuerventils (30) verbunden, wobei im Steuerventilraum (60) ein Ventilglied (62) angeordnet ist. Der innere Steuerraum (54) ist über eine innere Zulaufdrossel (47) und der äußere Steuerraum (56) über eine äußere Zulaufdrossel (45) mit einem Hochdruckbereich (8) verbunden, und das Ventilglied (62) kann eine erste, eine zweite und eine dritte Schaltposition einnehmen, so dass der Druck in den Steuerräumen (54; 56) so steuerbar ist, dass sowohl nur die äußere Ventilnadel (17) als auch beide Ventilnadeln (15; 17) geöffnet werden können (Fig. 1).Fuel injection valve having a housing (1), in which a valve seat (20) is formed and a valve outer needle (17) and a valve inner needle (15) are arranged. By the pressure in an outer control chamber (56) a closing force on the valve outer needle (17) is exercisable and by the pressure in an inner control chamber (54) a corresponding closing force on the valve inner needle (15). The inner control chamber (54) is connected via an inner outlet throttle (51) and the outer control chamber (56) via an outer outlet throttle (49) to a control valve chamber (60) of a control valve (30), wherein in the control valve chamber (60) a valve member ( 62) is arranged. The inner control chamber (54) is connected via an inner inlet throttle (47) and the outer control chamber (56) via an outer inlet throttle (45) to a high-pressure region (8), and the valve member (62) can have a first, a second and a occupy the third switching position so that the pressure in the control chambers (54; 56) is controllable so that only the outer valve needle (17) and both valve pins (15; 17) can be opened (FIG. 1).

DE2003138228 2003-08-20 2003-08-20 Fuel injection valve for internal combustion engines Withdrawn DE10338228A1 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
DE2003138228 DE10338228A1 (en) 2003-08-20 2003-08-20 Fuel injection valve for internal combustion engines
PCT/DE2004/001306 WO2005019638A1 (en) 2003-08-20 2004-06-22 Fuel injection valve for internal combustion engines
DE502004006203T DE502004006203D1 (en) 2003-08-20 2004-06-22 FUEL INJECTION VALVE FOR INTERNAL COMBUSTION ENGINES
EP04738755A EP1658427B1 (en) 2003-08-20 2004-06-22 Fuel injection valve for internal combustion engines

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2003138228 DE10338228A1 (en) 2003-08-20 2003-08-20 Fuel injection valve for internal combustion engines

Publications (1)

Publication Number Publication Date
DE10338228A1 true DE10338228A1 (en) 2005-03-10

Family

ID=34177708

Family Applications (2)

Application Number Title Priority Date Filing Date
DE2003138228 Withdrawn DE10338228A1 (en) 2003-08-20 2003-08-20 Fuel injection valve for internal combustion engines
DE502004006203T Expired - Lifetime DE502004006203D1 (en) 2003-08-20 2004-06-22 FUEL INJECTION VALVE FOR INTERNAL COMBUSTION ENGINES

Family Applications After (1)

Application Number Title Priority Date Filing Date
DE502004006203T Expired - Lifetime DE502004006203D1 (en) 2003-08-20 2004-06-22 FUEL INJECTION VALVE FOR INTERNAL COMBUSTION ENGINES

Country Status (3)

Country Link
EP (1) EP1658427B1 (en)
DE (2) DE10338228A1 (en)
WO (1) WO2005019638A1 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006010650A1 (en) * 2004-06-24 2006-02-02 Robert Bosch Gmbh Fuel injection device
EP1650427A1 (en) 2004-10-23 2006-04-26 Robert Bosch Gmbh Fuel injection valve for internal combustion engines
DE102007002281A1 (en) 2007-01-16 2008-07-17 Robert Bosch Gmbh Injector for fuel injection system of internal-combustion engine in motor vehicle, has guidance for servo piston designed at separation element and limiting coupler space together with separation element and piston
CN106414992A (en) * 2014-05-26 2017-02-15 罗伯特·博世有限公司 Nozzle assembly for a fuel injector, and fuel injector

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10357769B4 (en) * 2003-12-10 2007-06-21 Siemens Ag Fuel injection valve
DE102004061800A1 (en) * 2004-12-22 2006-07-06 Robert Bosch Gmbh Injector of a fuel injection system of an internal combustion engine
DE102005020832A1 (en) * 2005-05-04 2006-11-09 Robert Bosch Gmbh Automotive fuel injection jet has two sliding needles both linked to a common fuel flow regulation chamber
DE102008001330A1 (en) * 2008-04-23 2009-10-29 Robert Bosch Gmbh Fuel injection valve for internal combustion engines

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4221913B2 (en) * 2001-04-26 2009-02-12 トヨタ自動車株式会社 Fuel injection device
DE10122241A1 (en) * 2001-05-08 2002-12-05 Bosch Gmbh Robert Fuel injection valve for internal combustion engines
DE10210927A1 (en) * 2002-03-13 2003-10-02 Bosch Gmbh Robert Fuel injection valve for internal combustion engines

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006010650A1 (en) * 2004-06-24 2006-02-02 Robert Bosch Gmbh Fuel injection device
EP1650427A1 (en) 2004-10-23 2006-04-26 Robert Bosch Gmbh Fuel injection valve for internal combustion engines
DE102007002281A1 (en) 2007-01-16 2008-07-17 Robert Bosch Gmbh Injector for fuel injection system of internal-combustion engine in motor vehicle, has guidance for servo piston designed at separation element and limiting coupler space together with separation element and piston
CN106414992A (en) * 2014-05-26 2017-02-15 罗伯特·博世有限公司 Nozzle assembly for a fuel injector, and fuel injector
CN106414992B (en) * 2014-05-26 2019-11-22 罗伯特·博世有限公司 Nozzle assembly and fuel injector for fuel injector

Also Published As

Publication number Publication date
DE502004006203D1 (en) 2008-03-27
EP1658427A1 (en) 2006-05-24
WO2005019638A1 (en) 2005-03-03
EP1658427B1 (en) 2008-02-13

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Legal Events

Date Code Title Description
8141 Disposal/no request for examination