EP1258628A3 - Fuel injection valve - Google Patents

Fuel injection valve Download PDF

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Publication number
EP1258628A3
EP1258628A3 EP02010816A EP02010816A EP1258628A3 EP 1258628 A3 EP1258628 A3 EP 1258628A3 EP 02010816 A EP02010816 A EP 02010816A EP 02010816 A EP02010816 A EP 02010816A EP 1258628 A3 EP1258628 A3 EP 1258628A3
Authority
EP
European Patent Office
Prior art keywords
valve
fuel injection
valve seat
injection valve
fuel
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Withdrawn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
EP02010816A
Other languages
German (de)
French (fr)
Other versions
EP1258628A2 (en
Inventor
Günter DANTES
Detlef Nowak
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 EP1258628A2 publication Critical patent/EP1258628A2/en
Publication of EP1258628A3 publication Critical patent/EP1258628A3/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Withdrawn legal-status Critical Current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
    • F02M65/00—Testing fuel-injection apparatus, e.g. testing injection timing ; Cleaning of fuel-injection apparatus
    • F02M65/007—Cleaning
    • F02M65/008—Cleaning of injectors only
    • 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
    • F02M43/00—Fuel-injection apparatus operating simultaneously on two or more fuels, or on a liquid fuel and another liquid, e.g. the other liquid being an anti-knock additive
    • F02M43/04—Injectors peculiar 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
    • 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
    • F02M61/165—Filtering elements specially adapted in fuel inlets to injector

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) für Brennstoffeinspritzanlagen von Brennkraftmaschinen umfaßt eine Magnetspule (10), eine mit der Magnetspule (10) in Wirkverbindung stehende und in einer Schließrichtung von einer Rückstellfeder (23) beaufschlagte Ventilnadel (3) zur Betätigung eines Ventilschließkörpers (4), der zusammen mit einer an einem Ventilsitzkörper (5) ausgebildeten Ventilsitzfläche (6) einen Dichtsitz bildet, zumindest zwei Abspritzöffnungen (7), die in dem Ventilsitzkörper (5) ausgebildet sind, und eine zentrale Brennstoffzufuhr (16). Das Brennstoffeinspritzventil (1) weist einen Hilfszulauf (40) auf, welcher über eine Leitung (44; 47) mit einem Innenraum (46) des Brennstoffeinspritzventils (1) in Verbindung steht.

Figure 00000001
A fuel injection valve (1) for fuel injection systems of internal combustion engines comprises a magnet coil (10), a valve needle (3), which is operatively connected to the magnet coil (10) and acted upon in a closing direction by a return spring (23), for actuating a valve closing body (4) together with a valve seat surface (6) formed on a valve seat body (5) forms a sealing seat, at least two spray openings (7) formed in the valve seat body (5) and a central fuel supply (16). The fuel injector (1) has an auxiliary inlet (40) which is connected via a line (44; 47) to an interior (46) of the fuel injector (1).
Figure 00000001
EP02010816A 2001-05-16 2002-05-15 Fuel injection valve Withdrawn EP1258628A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10123867 2001-05-16
DE2001123867 DE10123867A1 (en) 2001-05-16 2001-05-16 Fuel injector

Publications (2)

Publication Number Publication Date
EP1258628A2 EP1258628A2 (en) 2002-11-20
EP1258628A3 true EP1258628A3 (en) 2004-12-01

Family

ID=7685027

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02010816A Withdrawn EP1258628A3 (en) 2001-05-16 2002-05-15 Fuel injection valve

Country Status (2)

Country Link
EP (1) EP1258628A3 (en)
DE (1) DE10123867A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10337893A1 (en) * 2003-08-18 2005-03-17 Daimlerchrysler Ag Fuel injection system and method for injecting fuel
GB2543826B (en) * 2015-10-30 2019-07-24 Caterpillar Inc A fuel injector, a fuel injector assembly and an associated method

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3203558A1 (en) * 1981-02-04 1982-09-23 Toyo Kogyo Co. Ltd., Hiroshima FUEL INJECTION DEVICE WITH SUB-AIR SYSTEM
DE3622142C1 (en) * 1986-07-02 1988-02-04 Daimler Benz Ag Liquid-cooled injection valve
US4736712A (en) * 1986-12-01 1988-04-12 General Electric Company Self purging dual fuel injector
US5020484A (en) * 1989-11-06 1991-06-04 Fuji Jukogyo Kabushiki Kaisha Lubricating system for a two-cycle engine
DE19629107A1 (en) * 1996-07-19 1998-01-29 Mtu Friedrichshafen Gmbh Diesel engine fuel injection system
DE19915792A1 (en) * 1999-04-08 2000-10-19 Daimler Chrysler Ag Fuel feed system for internal combustion engine has fuel feed passage leading to fuel injection valve provided in cylinder head or rocker cover connected to it, and runs perpendicularly to longitudinal axis of fuel injection valve

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19804463B4 (en) 1998-02-05 2006-06-14 Daimlerchrysler Ag Fuel injection system for gasoline engines

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3203558A1 (en) * 1981-02-04 1982-09-23 Toyo Kogyo Co. Ltd., Hiroshima FUEL INJECTION DEVICE WITH SUB-AIR SYSTEM
DE3622142C1 (en) * 1986-07-02 1988-02-04 Daimler Benz Ag Liquid-cooled injection valve
US4736712A (en) * 1986-12-01 1988-04-12 General Electric Company Self purging dual fuel injector
US5020484A (en) * 1989-11-06 1991-06-04 Fuji Jukogyo Kabushiki Kaisha Lubricating system for a two-cycle engine
DE19629107A1 (en) * 1996-07-19 1998-01-29 Mtu Friedrichshafen Gmbh Diesel engine fuel injection system
DE19915792A1 (en) * 1999-04-08 2000-10-19 Daimler Chrysler Ag Fuel feed system for internal combustion engine has fuel feed passage leading to fuel injection valve provided in cylinder head or rocker cover connected to it, and runs perpendicularly to longitudinal axis of fuel injection valve

Also Published As

Publication number Publication date
EP1258628A2 (en) 2002-11-20
DE10123867A1 (en) 2002-11-28

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