EP2072805A3 - Brennstoffeinspritzventil - Google Patents

Brennstoffeinspritzventil Download PDF

Info

Publication number
EP2072805A3
EP2072805A3 EP08105679A EP08105679A EP2072805A3 EP 2072805 A3 EP2072805 A3 EP 2072805A3 EP 08105679 A EP08105679 A EP 08105679A EP 08105679 A EP08105679 A EP 08105679A EP 2072805 A3 EP2072805 A3 EP 2072805A3
Authority
EP
European Patent Office
Prior art keywords
nozzle
fan jet
jet nozzle
fuel injector
fuel injection
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
EP08105679A
Other languages
English (en)
French (fr)
Other versions
EP2072805B1 (de
EP2072805A2 (de
Inventor
Joerg 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 EP2072805A2 publication Critical patent/EP2072805A2/de
Publication of EP2072805A3 publication Critical patent/EP2072805A3/de
Application granted granted Critical
Publication of EP2072805B1 publication Critical patent/EP2072805B1/de
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • F02M61/1853—Orifice plates
    • 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
    • F02M61/184—Discharge orifices having non circular sections

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Fuel-Injection Apparatus (AREA)

Abstract

Das erfindungsgemäße Brennstoffeinspritzventil zeichnet sich dadurch aus, dass stromabwärts eines einen festen Ventilsitz (29) aufweisenden Ventilsitzkörpers (16) eine Multi-Fächerstrahl-Düse (23) angeordnet ist. Die Multi-Fächerstrahl-Düse (23) ist scheibenförmig mit einem mittleren ausgewölbten kuppenartigen Düsenbereich (28) ausgebildet. Im Düsenbereich (28) der als Zerstäubereinrichtung dienenden Multi-Fächerstrahl-Düse (23) sind eine Vielzahl von richtungsparallelen Abspritzschlitzen (30) vorgesehen, die z.B. in einer Reihe angeordnet sind. Der ausgewölbte Düsenbereich (28) ist im Grundumriss viereckförmig oder elliptisch in der Mitte zu einer Spitze (33) zulaufend ausgebildet.
Das Brennstoffeinspritzventil eignet sich besonders für den Einsatz in Brennstoffeinspritzanlagen von gemischverdichtenden fremdgezündeten Brennkraftmaschinen.
EP20080105679 2007-12-21 2008-10-28 Brennstoffeinspritzventil Not-in-force EP2072805B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE200710062190 DE102007062190A1 (de) 2007-12-21 2007-12-21 Brennstoffeinspritzventil

Publications (3)

Publication Number Publication Date
EP2072805A2 EP2072805A2 (de) 2009-06-24
EP2072805A3 true EP2072805A3 (de) 2009-07-08
EP2072805B1 EP2072805B1 (de) 2012-04-11

Family

ID=40451441

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20080105679 Not-in-force EP2072805B1 (de) 2007-12-21 2008-10-28 Brennstoffeinspritzventil

Country Status (2)

Country Link
EP (1) EP2072805B1 (de)
DE (1) DE102007062190A1 (de)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102004013141A1 (de) * 2003-03-25 2004-10-21 Hitachi Unisia Automotive, Ltd., Atsugi Kraftstoffeinspritzventil
WO2006072487A1 (de) * 2005-01-03 2006-07-13 Robert Bosch Gmbh Multi-fächerstrahl-düse und brennstoffeinspritzventil mit multi-fächerstrahl-düse
DE102005000617A1 (de) * 2005-01-03 2006-07-13 Robert Bosch Gmbh Verfahren zur Herstellung eines Schlitzkörpers und Brennstoffeinspritzventil mit einem Schlitzkörper
US20060157595A1 (en) * 2005-01-14 2006-07-20 Peterson William A Jr Fuel injector for high fuel flow rate applications

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19636396B4 (de) 1996-09-07 2005-03-10 Bosch Gmbh Robert Brennstoffeinspritzventil
JPH11117831A (ja) 1997-10-17 1999-04-27 Toyota Motor Corp 内燃機関用燃料噴射弁
JP3323429B2 (ja) 1997-11-19 2002-09-09 トヨタ自動車株式会社 内燃機関用燃料噴射弁

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102004013141A1 (de) * 2003-03-25 2004-10-21 Hitachi Unisia Automotive, Ltd., Atsugi Kraftstoffeinspritzventil
WO2006072487A1 (de) * 2005-01-03 2006-07-13 Robert Bosch Gmbh Multi-fächerstrahl-düse und brennstoffeinspritzventil mit multi-fächerstrahl-düse
DE102005000617A1 (de) * 2005-01-03 2006-07-13 Robert Bosch Gmbh Verfahren zur Herstellung eines Schlitzkörpers und Brennstoffeinspritzventil mit einem Schlitzkörper
US20060157595A1 (en) * 2005-01-14 2006-07-20 Peterson William A Jr Fuel injector for high fuel flow rate applications

Also Published As

Publication number Publication date
EP2072805B1 (de) 2012-04-11
DE102007062190A1 (de) 2009-06-25
EP2072805A2 (de) 2009-06-24

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