EP1719903A1 - Vorrichtung und Verfahren für ein Kraftstoffeinspritzventil mit schaltbaren Betriebsarten - Google Patents

Vorrichtung und Verfahren für ein Kraftstoffeinspritzventil mit schaltbaren Betriebsarten Download PDF

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Publication number
EP1719903A1
EP1719903A1 EP05076025A EP05076025A EP1719903A1 EP 1719903 A1 EP1719903 A1 EP 1719903A1 EP 05076025 A EP05076025 A EP 05076025A EP 05076025 A EP05076025 A EP 05076025A EP 1719903 A1 EP1719903 A1 EP 1719903A1
Authority
EP
European Patent Office
Prior art keywords
outlet openings
fuel
fuel injector
injector nozzle
openings
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
EP05076025A
Other languages
English (en)
French (fr)
Other versions
EP1719903B1 (de
Inventor
Philip J. Dingle
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.)
Delphi Technologies Inc
Original Assignee
Delphi Technologies Inc
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 Delphi Technologies Inc filed Critical Delphi Technologies Inc
Priority to EP05076025A priority Critical patent/EP1719903B1/de
Priority to DE602005009334T priority patent/DE602005009334D1/de
Priority to AT05076025T priority patent/ATE406515T1/de
Publication of EP1719903A1 publication Critical patent/EP1719903A1/de
Application granted granted Critical
Publication of EP1719903B1 publication Critical patent/EP1719903B1/de
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • F02M61/1806—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
    • F02M61/182—Discharge orifices being situated in different transversal planes with respect to valve member direction of movement
    • 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
    • F02M45/02—Fuel-injection apparatus characterised by having a cyclic delivery of specific time/pressure or time/quantity relationship with each cyclic delivery being separated into two or more parts
    • F02M45/04—Fuel-injection apparatus characterised by having a cyclic delivery of specific time/pressure or time/quantity relationship with each cyclic delivery being separated into two or more parts with a small initial part, e.g. initial part for partial load and initial and main part for full load
    • F02M45/08—Injectors peculiar thereto
    • F02M45/086—Having more than one injection-valve controlling discharge 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
    • 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
    • F02M61/1813—Discharge orifices having different orientations with respect to valve member direction of movement, e.g. orientations being such that fuel jets emerging from discharge orifices collide with each other
    • 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
    • F02M61/1826—Discharge orifices having different sizes
    • 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
    • F02M61/1886—Details of valve seats not covered by groups F02M61/1866 - F02M61/188
    • 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
    • F02M2200/00—Details of fuel-injection apparatus, not otherwise provided for
    • F02M2200/07—Fuel-injection apparatus having means for avoiding sticking of valve or armature, e.g. preventing hydraulic or magnetic sticking of parts
    • 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
    • F02M2200/00—Details of fuel-injection apparatus, not otherwise provided for
    • F02M2200/46—Valves, e.g. injectors, with concentric 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
    • 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
    • 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

Definitions

  • a method for providing variable fuel dispersal through a fuel injector nozzle comprising: providing a first plurality of openings in an outer housing of the fuel injector nozzle; providing a second plurality of openings in the outer housing of the fuel injector nozzle, the second plurality of openings being disposed below the first plurality of openings and the second plurality of openings are larger than the first plurality of openings such that a larger amount of fuel is allowed to flow therethrough; moving an outer needle from a first position to a second position in accordance with a first mode of dispersal of fuel through the fuel injector nozzle, wherein fuel under pressure is only allowed to flow through the first plurality of openings; and moving the outer needle from the second position to a third position in accordance with a second mode of dispersal of fuel through the fuel injector nozzle, wherein fuel under pressure is allowed to flow through the first plurality of openings and the second plurality of openings wherein fuel flowing through the second plurality of openings collides with fuel flowing through the first pluralit
  • One exemplary embodiment of the present invention is to provide a fuel injector with a variable area nozzle that produces colliding sprays in one spray position optimized for normal diesel combustion and a non-colliding spray configuration wherein only a smaller set of opening are used for fuel dispersal wherein the spray geometry and flow rate is adapted for other emission technologies such as Homogeneous Charge Compression Ignition (HCCI) or injection of the fuel when the piston is at or near bottom dead center or any other position other than top dead center.
  • HCCI Homogeneous Charge Compression Ignition
  • first outer valve needle 18 to control fluid communication between chamber 22 and a plurality of first outlet openings 24 bored through a nozzle end 26 of nozzle body 12.
  • first outlet openings 24 will have a smaller diameter opening than the openings disposed below openings 24 and the angular configuration of openings 24 is adapted for supplemental injection requirements.
  • the diameter of openings 24 is 0.011 mm and the diameter of openings 48 is 0.016 mm. It is, of course, understood that exemplary embodiment of the present invention are intended to include dimensions greater than or less than the aforementioned values.
  • the number of openings 48 will be the same as the number of openings 24. However, in an alternative exemplary embodiment, and wherein the positioning and size of openings 48 allows the same to collide with fuel from more than one opening 24, the number of openings 48 may be less than the number of openings 24. Likewise the number of openings 24 may be less than the number of openings 48, but in all cases an opening 48 will be paired with an opening 24 as they may exist.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Fuel-Injection Apparatus (AREA)
  • Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
EP05076025A 2005-05-03 2005-05-03 Vorrichtung für ein Kraftstoffeinspritzventil mit schaltbaren Betriebsarten Not-in-force EP1719903B1 (de)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP05076025A EP1719903B1 (de) 2005-05-03 2005-05-03 Vorrichtung für ein Kraftstoffeinspritzventil mit schaltbaren Betriebsarten
DE602005009334T DE602005009334D1 (de) 2005-05-03 2005-05-03 Vorrichtung für ein Kraftstoffeinspritzventil mit schaltbaren Betriebsarten
AT05076025T ATE406515T1 (de) 2005-05-03 2005-05-03 Vorrichtung für ein kraftstoffeinspritzventil mit schaltbaren betriebsarten

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP05076025A EP1719903B1 (de) 2005-05-03 2005-05-03 Vorrichtung für ein Kraftstoffeinspritzventil mit schaltbaren Betriebsarten

Publications (2)

Publication Number Publication Date
EP1719903A1 true EP1719903A1 (de) 2006-11-08
EP1719903B1 EP1719903B1 (de) 2008-08-27

Family

ID=34938236

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05076025A Not-in-force EP1719903B1 (de) 2005-05-03 2005-05-03 Vorrichtung für ein Kraftstoffeinspritzventil mit schaltbaren Betriebsarten

Country Status (3)

Country Link
EP (1) EP1719903B1 (de)
AT (1) ATE406515T1 (de)
DE (1) DE602005009334D1 (de)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009127850A1 (en) * 2008-04-14 2009-10-22 Delphi Technologies, Inc. Fuel injector
WO2009150512A1 (en) * 2008-06-12 2009-12-17 Toyota Jidosha Kabushiki Kaisha Fuel injection nozzle and fuel injection valve, and fuel injection control system using the same
EP2390491A1 (de) * 2010-05-28 2011-11-30 KW Technologie GmbH & Co. KG Vorrichtung zum Einspritzen von Brennstoff in einen Brennraum
EP2426348A1 (de) * 2010-09-07 2012-03-07 Robert Bosch GmbH Brennstoffeinspritzventil
WO2015078941A1 (de) * 2013-11-29 2015-06-04 Handtmann Systemtechnik Gmbh & Co. Kg Vorrichtung zum vernebeln oder versprayen von flüssigkeit in einen betriebsraum
WO2017038393A1 (ja) * 2015-09-02 2017-03-09 株式会社デンソー 燃料噴射ノズル
WO2018101118A1 (ja) * 2016-11-30 2018-06-07 日立オートモティブシステムズ株式会社 燃料噴射装置
CN112459945A (zh) * 2020-11-24 2021-03-09 一汽解放汽车有限公司 一种喷射器及发动机

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1059437A1 (de) 1999-06-09 2000-12-13 Delphi Technologies, Inc. Kraftstoffeinspritzventil
US20030094517A1 (en) * 2001-11-16 2003-05-22 Masaaki Kato Fuel injection nozzle
US20040055562A1 (en) * 2002-09-25 2004-03-25 Chris Stewart Mixed mode fuel injector with individually moveable needle valve members
DE10246973A1 (de) * 2002-10-09 2004-04-22 Robert Bosch Gmbh Kraftstoff-Einspritzvorrichtung für eine Brennkraftmaschine
DE10305187A1 (de) * 2003-02-08 2004-08-19 Robert Bosch Gmbh Kraftstoff-Einspritzvorrichtung, insbesondere für Brennkraftmaschinen mit Kraftstoff-Direkteinspritzung

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1059437A1 (de) 1999-06-09 2000-12-13 Delphi Technologies, Inc. Kraftstoffeinspritzventil
US20030094517A1 (en) * 2001-11-16 2003-05-22 Masaaki Kato Fuel injection nozzle
US20040055562A1 (en) * 2002-09-25 2004-03-25 Chris Stewart Mixed mode fuel injector with individually moveable needle valve members
DE10246973A1 (de) * 2002-10-09 2004-04-22 Robert Bosch Gmbh Kraftstoff-Einspritzvorrichtung für eine Brennkraftmaschine
DE10305187A1 (de) * 2003-02-08 2004-08-19 Robert Bosch Gmbh Kraftstoff-Einspritzvorrichtung, insbesondere für Brennkraftmaschinen mit Kraftstoff-Direkteinspritzung

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009127850A1 (en) * 2008-04-14 2009-10-22 Delphi Technologies, Inc. Fuel injector
US8490888B2 (en) 2008-04-14 2013-07-23 Delphi Technologies Holding S.Arl Fuel injector
WO2009150512A1 (en) * 2008-06-12 2009-12-17 Toyota Jidosha Kabushiki Kaisha Fuel injection nozzle and fuel injection valve, and fuel injection control system using the same
EP2390491A1 (de) * 2010-05-28 2011-11-30 KW Technologie GmbH & Co. KG Vorrichtung zum Einspritzen von Brennstoff in einen Brennraum
EP2650527A1 (de) * 2010-05-28 2013-10-16 KW Technologie GmbH & Co. KG Vorrichtung zum Einspritzen von Brennstoff in einen Brennraum
EP2426348A1 (de) * 2010-09-07 2012-03-07 Robert Bosch GmbH Brennstoffeinspritzventil
WO2015078941A1 (de) * 2013-11-29 2015-06-04 Handtmann Systemtechnik Gmbh & Co. Kg Vorrichtung zum vernebeln oder versprayen von flüssigkeit in einen betriebsraum
WO2017038393A1 (ja) * 2015-09-02 2017-03-09 株式会社デンソー 燃料噴射ノズル
JP2017048722A (ja) * 2015-09-02 2017-03-09 株式会社デンソー 燃料噴射ノズル
WO2018101118A1 (ja) * 2016-11-30 2018-06-07 日立オートモティブシステムズ株式会社 燃料噴射装置
JPWO2018101118A1 (ja) * 2016-11-30 2019-07-25 日立オートモティブシステムズ株式会社 燃料噴射装置
US10995655B2 (en) 2016-11-30 2021-05-04 Hitachi Automotive Systems, Ltd. Fuel injection device
CN112459945A (zh) * 2020-11-24 2021-03-09 一汽解放汽车有限公司 一种喷射器及发动机

Also Published As

Publication number Publication date
ATE406515T1 (de) 2008-09-15
EP1719903B1 (de) 2008-08-27
DE602005009334D1 (de) 2008-10-09

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