DE10344585A1 - Brennstoffeinspritzventil - Google Patents

Brennstoffeinspritzventil Download PDF

Info

Publication number
DE10344585A1
DE10344585A1 DE10344585A DE10344585A DE10344585A1 DE 10344585 A1 DE10344585 A1 DE 10344585A1 DE 10344585 A DE10344585 A DE 10344585A DE 10344585 A DE10344585 A DE 10344585A DE 10344585 A1 DE10344585 A1 DE 10344585A1
Authority
DE
Germany
Prior art keywords
valve
seat
abspritzkante
trailing edge
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.)
Withdrawn
Application number
DE10344585A
Other languages
English (en)
Inventor
Martin Mueller
Michael Huebel
Marco Vorbach
Alexander Hantke
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 DE10344585A priority Critical patent/DE10344585A1/de
Priority to US10/571,952 priority patent/US8727240B2/en
Priority to JP2006527399A priority patent/JP4542100B2/ja
Priority to PCT/EP2004/052123 priority patent/WO2005031153A1/de
Priority to BRPI0414709-0A priority patent/BRPI0414709B1/pt
Priority to EP04787123.1A priority patent/EP1668240B1/de
Publication of DE10344585A1 publication Critical patent/DE10344585A1/de
Withdrawn legal-status Critical Current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
    • F02M51/00—Fuel-injection apparatus characterised by being operated electrically
    • F02M51/06—Injectors peculiar thereto with means directly operating the valve needle
    • F02M51/0603—Injectors peculiar thereto with means directly operating the valve needle using piezoelectric or magnetostrictive operating means
    • 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
    • F02M61/08—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 the valves opening in direction of fuel flow
    • 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
    • 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
    • F02M69/00—Low-pressure fuel-injection apparatus ; Apparatus with both continuous and intermittent injection; Apparatus injecting different types of fuel
    • F02M69/04—Injectors peculiar thereto
    • F02M69/042—Positioning of injectors with respect to engine, e.g. in the air intake conduit
    • F02M69/045—Positioning of injectors with respect to engine, e.g. in the air intake conduit for injecting into the combustion chamber
    • 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
    • F02M69/00—Low-pressure fuel-injection apparatus ; Apparatus with both continuous and intermittent injection; Apparatus injecting different types of fuel
    • F02M69/08—Low-pressure fuel-injection apparatus ; Apparatus with both continuous and intermittent injection; Apparatus injecting different types of fuel characterised by the fuel being carried by compressed air into main stream of combustion-air

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

Bekannte Brennstoffeinspritzventile haben eine Ventilnadel, die an einer Abströmkante einen maximalen Durchmesser hat, und einen mit der Ventilnadel zusammenwirkenden Ventilsitz mit einem Dichtsitz aufweist, wobei sich der Ventilsitz von dem Dichtsitz, ausgehend bis zu einer Abspritzkante, erweitert und wobei die Abströmkante der Ventilnadel bei geschlossenem Brennstoffeinspritzventil gegenüber der Abspritzkante des Ventilsitzes bezüglich der Strömungsrichtung zurückversetzt ist. Das Brennstoffeinspritzventil spritzt den Kraftstoff unter einem vorbestimmten Strahlwinkel in einen Brennraum einer Brennkraftmaschine ein. Nachteilig ist, daß bei zu geringem oder zu großem Rückversatz der Abströmkante eine unzulässig hohe Strahlwinkelstreuung auftreten kann. DOLLAR A Bein dem erfindungsgemäßen Brennstoffeinspritzventil wird auf einfache Art und Weise die Strahlwinkelstreuung verringert. DOLLAR A Erfindungsgemäß wird vorgeschlagen, daß die Abströmkante (14) der Ventilnadel (4) in einem vorbestimmten Bereich von 2 Mikrometern bis 20 Mikrometern gegenüber der Abspritzkante (16) des Ventilsitzes (9) in Richtung einer Ventillängsachse (22) zurückversetzt ist.
DE10344585A 2003-09-25 2003-09-25 Brennstoffeinspritzventil Withdrawn DE10344585A1 (de)

Priority Applications (6)

Application Number Priority Date Filing Date Title
DE10344585A DE10344585A1 (de) 2003-09-25 2003-09-25 Brennstoffeinspritzventil
US10/571,952 US8727240B2 (en) 2003-09-25 2004-09-10 Fuel injector
JP2006527399A JP4542100B2 (ja) 2003-09-25 2004-09-10 燃料噴射弁
PCT/EP2004/052123 WO2005031153A1 (de) 2003-09-25 2004-09-10 Brennstoffeinspritzventil
BRPI0414709-0A BRPI0414709B1 (pt) 2003-09-25 2004-09-10 Fuel injection valve
EP04787123.1A EP1668240B1 (de) 2003-09-25 2004-09-10 Brennstoffeinspritzventil

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE10344585A DE10344585A1 (de) 2003-09-25 2003-09-25 Brennstoffeinspritzventil

Publications (1)

Publication Number Publication Date
DE10344585A1 true DE10344585A1 (de) 2005-04-28

Family

ID=34384284

Family Applications (1)

Application Number Title Priority Date Filing Date
DE10344585A Withdrawn DE10344585A1 (de) 2003-09-25 2003-09-25 Brennstoffeinspritzventil

Country Status (6)

Country Link
US (1) US8727240B2 (de)
EP (1) EP1668240B1 (de)
JP (1) JP4542100B2 (de)
BR (1) BRPI0414709B1 (de)
DE (1) DE10344585A1 (de)
WO (1) WO2005031153A1 (de)

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3347470A (en) * 1965-04-07 1967-10-17 Borg Warner Fuel injection nozzle
DE3004454A1 (de) * 1980-02-07 1981-08-13 Robert Bosch Gmbh, 7000 Stuttgart Kraftstofeinspritzduese fuer brennkraftmaschinen
CA1279798C (en) * 1985-07-19 1991-02-05 Peter William Ragg Fuel injection
GB2219627B (en) 1988-06-10 1992-10-28 Orbital Eng Pty Improvements relating to nozzles for in-cylinder fuel injection systems
JP2768740B2 (ja) 1988-06-10 1998-06-25 オービタル、エンジン、カンパニー、プロプライエタリ、リミテッド 燃料噴射ノズル
JP2767005B2 (ja) * 1990-11-14 1998-06-18 トヨタ自動車株式会社 エアブラスト弁
JPH05113871A (ja) 1991-10-23 1993-05-07 Mitsubishi Electric Corp 演算処理装置
US5170766A (en) * 1992-01-16 1992-12-15 Orbital Walbro Corporation Fuel and air injection for multi-cylinder internal combustion engines
DE10204655A1 (de) * 2002-02-05 2003-08-28 Bosch Gmbh Robert Brennstoffeinspritzventil

Also Published As

Publication number Publication date
WO2005031153A1 (de) 2005-04-07
JP4542100B2 (ja) 2010-09-08
EP1668240B1 (de) 2014-11-12
EP1668240A1 (de) 2006-06-14
US8727240B2 (en) 2014-05-20
US20090008482A1 (en) 2009-01-08
BRPI0414709B1 (pt) 2017-10-24
BRPI0414709A (pt) 2006-11-14
JP2007506036A (ja) 2007-03-15

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Legal Events

Date Code Title Description
8110 Request for examination paragraph 44
R016 Response to examination communication
R119 Application deemed withdrawn, or ip right lapsed, due to non-payment of renewal fee