EP1195516A3 - Fuel injection valve - Google Patents

Fuel injection valve Download PDF

Info

Publication number
EP1195516A3
EP1195516A3 EP01123836A EP01123836A EP1195516A3 EP 1195516 A3 EP1195516 A3 EP 1195516A3 EP 01123836 A EP01123836 A EP 01123836A EP 01123836 A EP01123836 A EP 01123836A EP 1195516 A3 EP1195516 A3 EP 1195516A3
Authority
EP
European Patent Office
Prior art keywords
valve
fuel injection
fuel
injection valve
valve needle
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
EP01123836A
Other languages
German (de)
French (fr)
Other versions
EP1195516A2 (en
EP1195516B1 (en
Inventor
Guenter 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 EP1195516A2 publication Critical patent/EP1195516A2/en
Publication of EP1195516A3 publication Critical patent/EP1195516A3/en
Application granted granted Critical
Publication of EP1195516B1 publication Critical patent/EP1195516B1/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
    • F02M61/18—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
    • F02M45/00—Fuel-injection apparatus characterised by having a cyclic delivery of specific time/pressure or time/quantity relationship
    • F02M45/12—Fuel-injection apparatus characterised by having a cyclic delivery of specific time/pressure or time/quantity relationship providing a continuous cyclic delivery with variable 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
    • 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
    • F02M61/162—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
    • 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

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 ein Brennstoffeinspritzventil (1) zum direkten Einspritzen von Brennstoff in einen Brennraum einer Brennkraftmaschine, umfaßt einen Aktor (10) zur Betätigung einer Ventilnadel (3), wobei die Ventilnadel (3) an einem abspritzseitigen Ende einen Ventilschließkörper (4) aufweist, der zusammen mit einer Ventilsitzfläche (6), die an einem Ventilsitzkörper (5) ausgebildet ist, einen Dichtsitz bildet. Brennstoffkanäle (35) sind in einer mit dem Ventilsitzkörper (5) verbundenen oder einstückig ausgebildeten Ventilnadelführung (31) in mehreren Reihen (34) umfänglich in der Ventilnadelführung (31) angeordnet, wobei die Anzahl der Brennstoffkanäle (35) und ihre Lage zueinander so gewählt ist, daß dadurch eine Kennlinie, die den dynamischen Brennstofffluß (qdyn) durch das Brennstoffeinspritzventil (1) in Abhängigkeit von einem Hub (h) der Ventilnadel (3) darstellt, eingestellt wird.

Figure 00000001
Figure 00000002
A fuel injection valve (1), in particular a fuel injection valve (1) for injecting fuel directly into a combustion chamber of an internal combustion engine, comprises an actuator (10) for actuating a valve needle (3), the valve needle (3) having a valve closing body () 4) which, together with a valve seat surface (6) which is formed on a valve seat body (5), forms a sealing seat. Fuel channels (35) are arranged circumferentially in the valve needle guide (31) in a plurality of rows (34) in a valve needle guide (31) which is connected to the valve seat body (5) or is formed in one piece, the number of fuel channels (35) and their position relative to one another being selected in this way is that a characteristic curve is set which represents the dynamic fuel flow (q dyn ) through the fuel injection valve (1) as a function of a stroke (h) of the valve needle (3).
Figure 00000001
Figure 00000002
EP20010123836 2000-10-06 2001-10-05 Fuel injection valve Expired - Lifetime EP1195516B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE2000149519 DE10049519B4 (en) 2000-10-06 2000-10-06 Fuel injector
DE10049519 2000-10-06

Publications (3)

Publication Number Publication Date
EP1195516A2 EP1195516A2 (en) 2002-04-10
EP1195516A3 true EP1195516A3 (en) 2004-01-02
EP1195516B1 EP1195516B1 (en) 2006-06-07

Family

ID=7658891

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20010123836 Expired - Lifetime EP1195516B1 (en) 2000-10-06 2001-10-05 Fuel injection valve

Country Status (3)

Country Link
EP (1) EP1195516B1 (en)
JP (1) JP2002155834A (en)
DE (2) DE10049519B4 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2650266B2 (en) * 1987-08-12 1997-09-03 キヤノン株式会社 Still video playback device
JP4529617B2 (en) * 2004-09-24 2010-08-25 アイシン・エィ・ダブリュ株式会社 Valve device
DE102004060531B4 (en) * 2004-12-16 2020-04-16 Robert Bosch Gmbh Procedure for adjusting hydraulic valves
DE102013204152A1 (en) 2013-03-11 2014-09-11 Robert Bosch Gmbh Valve for controlling a fluid with increased tightness

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0789142A1 (en) * 1995-08-29 1997-08-13 Isuzu Motors Limited Storage type fuel injection device
DE19625059A1 (en) * 1996-06-22 1998-01-02 Bosch Gmbh Robert Injection valve, in particular for injecting fuel directly into a combustion chamber of an internal combustion engine
US5823161A (en) * 1995-02-15 1998-10-20 Robert Bosch Gmbh Fuel injection device for internal combustion engines
WO2002029242A2 (en) * 2000-10-06 2002-04-11 Robert Bosch Gmbh Fuel injection valve

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6125818A (en) * 1997-03-19 2000-10-03 Hiatchi, Ltd. Fuel injector and internal combustion engine having the same
JPH10281039A (en) * 1997-04-02 1998-10-20 Hitachi Ltd Fuel injector and controlling method therefor
US6572028B1 (en) * 2000-01-19 2003-06-03 Visteon Global Technologies, Inc. Combined needle guide, filter, and flow director for gasoline fuel injectors

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5823161A (en) * 1995-02-15 1998-10-20 Robert Bosch Gmbh Fuel injection device for internal combustion engines
EP0789142A1 (en) * 1995-08-29 1997-08-13 Isuzu Motors Limited Storage type fuel injection device
DE19625059A1 (en) * 1996-06-22 1998-01-02 Bosch Gmbh Robert Injection valve, in particular for injecting fuel directly into a combustion chamber of an internal combustion engine
WO2002029242A2 (en) * 2000-10-06 2002-04-11 Robert Bosch Gmbh Fuel injection valve

Also Published As

Publication number Publication date
EP1195516A2 (en) 2002-04-10
DE10049519B4 (en) 2006-01-12
EP1195516B1 (en) 2006-06-07
DE10049519A1 (en) 2002-04-18
DE50110018D1 (en) 2006-07-20
JP2002155834A (en) 2002-05-31

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