EP1350947A3 - Fuel injection valve - Google Patents

Fuel injection valve Download PDF

Info

Publication number
EP1350947A3
EP1350947A3 EP03001838A EP03001838A EP1350947A3 EP 1350947 A3 EP1350947 A3 EP 1350947A3 EP 03001838 A EP03001838 A EP 03001838A EP 03001838 A EP03001838 A EP 03001838A EP 1350947 A3 EP1350947 A3 EP 1350947A3
Authority
EP
European Patent Office
Prior art keywords
valve
swirl
fuel injection
guide
closing body
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.)
Granted
Application number
EP03001838A
Other languages
German (de)
French (fr)
Other versions
EP1350947B1 (en
EP1350947A2 (en
Inventor
Joerg A. Heyse
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
Publication of EP1350947A2 publication Critical patent/EP1350947A2/en
Publication of EP1350947A3 publication Critical patent/EP1350947A3/en
Application granted granted Critical
Publication of EP1350947B1 publication Critical patent/EP1350947B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • 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
    • F02M61/162—Means to impart a whirling motion to fuel upstream or near discharging 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
    • F02M51/00—Fuel-injection apparatus characterised by being operated electrically
    • F02M51/06—Injectors peculiar thereto with means directly operating the valve needle
    • F02M51/061—Injectors peculiar thereto with means directly operating the valve needle using electromagnetic operating means
    • F02M51/0625—Injectors peculiar thereto with means directly operating the valve needle using electromagnetic operating means characterised by arrangement of mobile armatures
    • F02M51/0664—Injectors peculiar thereto with means directly operating the valve needle using electromagnetic operating means characterised by arrangement of mobile armatures having a cylindrically or partly cylindrically shaped armature, e.g. entering the winding; having a plate-shaped or undulated armature entering the winding
    • F02M51/0671—Injectors peculiar thereto with means directly operating the valve needle using electromagnetic operating means characterised by arrangement of mobile armatures having a cylindrically or partly cylindrically shaped armature, e.g. entering the winding; having a plate-shaped or undulated armature entering the winding the armature having an elongated valve body attached thereto
    • 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
    • F02M51/00—Fuel-injection apparatus characterised by being operated electrically
    • F02M51/06—Injectors peculiar thereto with means directly operating the valve needle
    • F02M51/061—Injectors peculiar thereto with means directly operating the valve needle using electromagnetic operating means
    • F02M51/0625—Injectors peculiar thereto with means directly operating the valve needle using electromagnetic operating means characterised by arrangement of mobile armatures
    • F02M51/0664—Injectors peculiar thereto with means directly operating the valve needle using electromagnetic operating means characterised by arrangement of mobile armatures having a cylindrically or partly cylindrically shaped armature, e.g. entering the winding; having a plate-shaped or undulated armature entering the winding
    • F02M51/0671—Injectors peculiar thereto with means directly operating the valve needle using electromagnetic operating means characterised by arrangement of mobile armatures having a cylindrically or partly cylindrically shaped armature, e.g. entering the winding; having a plate-shaped or undulated armature entering the winding the armature having an elongated valve body attached thereto
    • F02M51/0675—Injectors peculiar thereto with means directly operating the valve needle using electromagnetic operating means characterised by arrangement of mobile armatures having a cylindrically or partly cylindrically shaped armature, e.g. entering the winding; having a plate-shaped or undulated armature entering the winding the armature having an elongated valve body attached thereto the valve body having cylindrical guiding or metering portions, e.g. with fuel passages
    • F02M51/0678—Injectors peculiar thereto with means directly operating the valve needle using electromagnetic operating means characterised by arrangement of mobile armatures having a cylindrically or partly cylindrically shaped armature, e.g. entering the winding; having a plate-shaped or undulated armature entering the winding the armature having an elongated valve body attached thereto the valve body having cylindrical guiding or metering portions, e.g. with fuel passages all portions having fuel passages, e.g. flats, grooves, diameter reductions
    • 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
    • F02M61/18—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)
  • Electromagnetism (AREA)
  • Fuel-Injection Apparatus (AREA)

Abstract

Ein Brennstoffeinspritzventil (1), insbesondere zum direkten Einspritzen von Brennstoff in einen Brennraum einer Brennkraftmaschine, hat eine Ventilnadel (3), die an ihrem abspritzseitigen Ende einen Ventilschließkörper (4) aufweist, der mit einer Ventilsitzfläche (6), die an einem Ventilsitzkörper (5) ausgebildet ist, zu einem Dichtsitz zusammenwirkt. Ein Führungsabschnitt (38) des Ventilschließkörpers (4) dient zur Führung der Ventilnadel (3) in einem Führungskörper (37). Eine Dralleinrichtung (42) dient zur Erzeugung eines Dralls in einer Drallkammer (35) stromaufwärts des Dichtsitzes. Im Ventilsitzkörper (5) ist eine Abspritzöffnung (7) vorgesehen. Im Führungsabschnitt (38) des Ventilschließkörpers (4) ist zumindest ein Strömungskanal (36) vorgesehen, der als Bypass für die Brennstoffzuleitung zur Drallkammer (35) dient.

Figure 00000001
A fuel injection valve (1), in particular for injecting fuel directly into a combustion chamber of an internal combustion engine, has a valve needle (3) which has a valve closing body (4) at its end on the spray side, which is connected to a valve seat surface (6) which is connected to a valve seat body ( 5) is designed to cooperate to form a sealing seat. A guide section (38) of the valve closing body (4) serves to guide the valve needle (3) in a guide body (37). A swirl device (42) is used to generate a swirl in a swirl chamber (35) upstream of the sealing seat. A spray opening (7) is provided in the valve seat body (5). At least one flow channel (36) is provided in the guide section (38) of the valve closing body (4) and serves as a bypass for the fuel supply line to the swirl chamber (35).
Figure 00000001
EP20030001838 2002-04-04 2003-01-29 Fuel injection valve Expired - Lifetime EP1350947B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10214904 2002-04-04
DE2002114904 DE10214904A1 (en) 2002-04-04 2002-04-04 Fuel injector

Publications (3)

Publication Number Publication Date
EP1350947A2 EP1350947A2 (en) 2003-10-08
EP1350947A3 true EP1350947A3 (en) 2004-05-12
EP1350947B1 EP1350947B1 (en) 2006-01-11

Family

ID=27816140

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20030001838 Expired - Lifetime EP1350947B1 (en) 2002-04-04 2003-01-29 Fuel injection valve

Country Status (2)

Country Link
EP (1) EP1350947B1 (en)
DE (2) DE10214904A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10357759A1 (en) * 2003-12-10 2005-07-28 Robert Bosch Gmbh Fuel injector

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60142051A (en) * 1983-12-28 1985-07-27 Toyota Motor Corp Fuel injection valve for internal-combustion engine
US5163621A (en) * 1989-12-12 1992-11-17 Nippondenso Co., Ltd. Fuel injection valve having different fuel injection angles at different opening amounts
WO2002044550A1 (en) * 2000-11-28 2002-06-06 Robert Bosch Gmbh Fuel injection system
WO2002050428A1 (en) * 2000-12-19 2002-06-27 Robert Bosch Gmbh Fuel injection valve

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60142051A (en) * 1983-12-28 1985-07-27 Toyota Motor Corp Fuel injection valve for internal-combustion engine
US5163621A (en) * 1989-12-12 1992-11-17 Nippondenso Co., Ltd. Fuel injection valve having different fuel injection angles at different opening amounts
WO2002044550A1 (en) * 2000-11-28 2002-06-06 Robert Bosch Gmbh Fuel injection system
WO2002050428A1 (en) * 2000-12-19 2002-06-27 Robert Bosch Gmbh Fuel injection valve

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 009, no. 307 (M - 435) 4 December 1985 (1985-12-04) *

Also Published As

Publication number Publication date
DE10214904A1 (en) 2003-10-16
EP1350947B1 (en) 2006-01-11
EP1350947A2 (en) 2003-10-08
DE50302146D1 (en) 2006-04-06

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