EP1440239B1 - Soupape d'injection de carburant - Google Patents

Soupape d'injection de carburant Download PDF

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Publication number
EP1440239B1
EP1440239B1 EP02769885A EP02769885A EP1440239B1 EP 1440239 B1 EP1440239 B1 EP 1440239B1 EP 02769885 A EP02769885 A EP 02769885A EP 02769885 A EP02769885 A EP 02769885A EP 1440239 B1 EP1440239 B1 EP 1440239B1
Authority
EP
European Patent Office
Prior art keywords
fuel injection
valve
injection valve
fuel
stroke
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.)
Expired - Lifetime
Application number
EP02769885A
Other languages
German (de)
English (en)
Other versions
EP1440239A1 (fr
Inventor
Volker Holzgrefe
Günther HOHL
Michael HÜBEL
Jürgen Stein
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 EP1440239A1 publication Critical patent/EP1440239A1/fr
Application granted granted Critical
Publication of EP1440239B1 publication Critical patent/EP1440239B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • 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
    • 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
    • F02M61/042—The valves being provided with fuel passages

Definitions

  • the invention is based on a fuel injection valve according to the preamble of the main claim.
  • an outward opening fuel injection valve known which a having conical sealing seat.
  • the valve needle has a Central bore, which in a the sealing seat upstream pressure chamber opens.
  • An actor who as piezoelectric actuator is designed supports on the one hand against a nozzle body and on the other hand against a non-positively connected to the valve needle Pressure shoulder off.
  • a return spring holds the valve needle in a closed position. Upon excitation of the actuator is through Length extension thereof the valve needle against the closing force of the return spring opened and fuel hosed.
  • a disadvantage of the known from DE 195 34 445 A1 Fuel injection valve is in particular that in the Combustion chamber of the internal combustion engine injected Fuel jet cone-shaped with a specific Opening angle ⁇ is.
  • An injection under different Opening angle ⁇ which, for example, the different requirements for the shape of the mixture cloud in part-load and full load range, is hereby not possible.
  • WO 01/11228 A1 describes a fuel injection valve after Preamble of claim 1.
  • the fuel injection valve according to the invention with the characterizing features of the main claim has In contrast, the advantage that, depending on the stroke position of Valve needle a larger or smaller jet angle can be represented, according to the operating state of Internal combustion engine can be selected.
  • Another advantage is that by means of appropriate shaping the downstream end of the fuel injection valve and corresponding to the valve closing body any desired Beam angle can be realized.
  • a in Figs. 1 and 2 in two different stroke states illustrated embodiment of an inventive Fuel injection valve 1 is in the form of a Fuel injection valve 1 for fuel injection systems of mixture-compacting, externally ignited Internal combustion engine running.
  • the Fuel injector 1 is particularly suitable for direct injection of fuel into one illustrated combustion chamber of an internal combustion engine.
  • the fuel injection valve 1 consists of a Housing body 2 and a nozzle body 3, in which a Valve needle 4 is arranged.
  • the valve needle 4 is available a valve closing body 5 in operative connection, with a Valve seat surface 6 cooperates to a sealing seat.
  • Fuel injection valve 1 is in Embodiment by an outward opening Fuel injection valve 1.
  • the fuel injection valve 1 has an actuator 7, which in the embodiment as piezoelectric actuator 7 is executed.
  • the actuator supports on the one hand on the housing body 2 and on the other hand on a with the valve needle 4 operatively connected shoulder. 8 from. Downstream of the shoulder 8 is a return spring. 9 arranged, which in turn on the nozzle body. 3 supported.
  • the valve needle 4 has a fuel passage 10, through which by a supply-side central Fuel supply 11 fed fuel to the sealing seat to be led.
  • a Swirl chamber 12 is formed, in which the fuel passage 10th opens.
  • a mixture-compressing, externally-ignited internal combustion engine places other demands on the shape, the stoichiometry and the penetration capacity of the mixture cloud injected into the combustion chamber in partial-load operation than in full-load operation.
  • the mixture cloud as shown in Fig. 1, a relatively small opening angle ⁇ 1 , a large penetration capacity, due to the small opening angle ⁇ 1 narrow core area with a richer mixture and have a very lean shell.
  • a large opening angle ⁇ 2 and thus a nearly homogeneous filling of the cylinder with zundpreparedem mixture is required.
  • Fuel injector 1 defines two stroke states, whereby during operation different jet patterns can be displayed, which according to the operating condition the internal combustion engine can be selected.
  • Fig. 1 shows the fuel injection valve 1 in a first stroke state.
  • the valve closing body 5 has already lifted off from the valve seat surface 6, but only releases a gap 13 of small width between the valve closing body 5 and the valve seat surface 6.
  • a fuel jet having a small opening angle ⁇ 1 can be represented, which has a large penetration capacity required for the stratified charge operation.
  • a second stroke position of the fuel injection valve 1 is shown.
  • the valve closing body 5 is now further away from the valve seat surface 6, so that the gap 13 is wider than in Fig. 1. Due to the Entrainment the flow outside of the injection jet of the gap 13, the sprayed fuel jet now applies to the valve closing body 5, which a relative to the longitudinal axis 16 of the fuel injection valve 1 has great inclination and thus leads to a strong expansion of the fuel jet.
  • the opening angle ⁇ 2 is thus increased compared to the first stroke position, which is advantageous for the full load range of the internal combustion engine, since the entire combustion chamber is filled with a relatively homogeneous, stoichiometric mixture.
  • the different stroke positions of the valve needle 4 can in simple way z. B. by the use of two separately controllable actuators 7 are approached.
  • This can For example, a voltage-controlled or voltage-controlled piezoelectric actuator and two piezoelectric Be actuators 7, which are controlled sequentially.
  • the use of two magnetic circuits with two separate coils or a two-part armature is conceivable.
  • the beam angle ⁇ 1 and ⁇ 2 are selected so that the combustion chamber of the internal combustion engine can be optimally filled with an ignitable fuel-air mixture.
  • the preparation of the inclined portion 15 and the valve seat surface 6 may, for example, in the manufacture of the nozzle body 3 z. B. by turning.
  • the invention is not limited to that shown Embodiment limited and for any construction of fuel injection valves 1 with arbitrary actuators. 7 applicable.

Landscapes

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

Claims (5)

  1. Injecteur de carburant (1) pour injection directe dans la chambre de combustion d'un moteur à combustion interne, dans lequel :
    une aiguille de soupape (4) est montée dans un corps de buse (3) et peut être manoeuvrée par un actionneur (7) tout en étant soumise à l'action d'un ressort de rappel (9),
    un corps de fermeture d'injecteur (5), coopérant avec l'aiguille de soupape (4) et situé du côté de la chambre de combustion, est maintenu appliqué de manière étanche sur une portée de siège de soupape (6), quand l'actionneur (7) n'est pas activé,
    à un premier état de la course de l'aiguille de soupape (4) est associé un premier angle d'ouverture de jet α1, et un second angle d'ouverture de jet α2 est associé à un second état de la course de l'aiguille de soupape (4),
    caractérisé en ce que
    la portée de siège de soupape (6) est formée à proximité d'une zone inclinée (15) réalisée à l'extrémité (13) située côté sortie de l'injecteur (1), cette zone (15) étant moins inclinée par rapport à l'axe longitudinal (16) de l'injecteur (1), que la portée de siège de soupape (6).
  2. Injecteur de carburant (1) selon la revendication 1,
    caractérisé en ce qu'
    une première course d'aiguille de soupape, correspondant au premier état de la course, est plus petite que la seconde course d'aiguille de soupape correspondant au second état de la course.
  3. Injecteur de carburant (1) selon la revendication 2,
    caractérisé en ce que
    l'angle α1 est plus petit que l'angle α2.
  4. Injecteur de carburant (1) selon une des revendications 1 à 3,
    caractérisé en ce que
    l'angle d'ouverture α1 est le double de l'angle d'inclinaison que présente la zone (15) par rapport à l'axe longitudinal (16) de l'injecteur (1).
  5. Injecteur de carburant (1) selon une des revendications 1 à 3,
    caractérisé en ce que
    l'angle d'ouverture α2 est le double de l'angle d'inclinaison que présente la portée de siège de soupape (6) par rapport à l'axe longitudinal (16) de l'injecteur (1).
EP02769885A 2001-10-24 2002-08-22 Soupape d'injection de carburant Expired - Lifetime EP1440239B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10152416 2001-10-24
DE10152416A DE10152416A1 (de) 2001-10-24 2001-10-24 Brennstoffeinspritzventil
PCT/DE2002/003072 WO2003038273A1 (fr) 2001-10-24 2002-08-22 Soupape d'injection de carburant

Publications (2)

Publication Number Publication Date
EP1440239A1 EP1440239A1 (fr) 2004-07-28
EP1440239B1 true EP1440239B1 (fr) 2005-07-20

Family

ID=7703530

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02769885A Expired - Lifetime EP1440239B1 (fr) 2001-10-24 2002-08-22 Soupape d'injection de carburant

Country Status (6)

Country Link
US (1) US7140562B2 (fr)
EP (1) EP1440239B1 (fr)
JP (1) JP4377230B2 (fr)
KR (1) KR20040054734A (fr)
DE (2) DE10152416A1 (fr)
WO (1) WO2003038273A1 (fr)

Families Citing this family (34)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10259799A1 (de) * 2002-12-19 2004-07-29 Robert Bosch Gmbh Brennstoffeinspritzventil
EP1500812A1 (fr) * 2003-07-25 2005-01-26 Delphi Technologies, Inc. Buse d'injection de combustible à ouverture vers l'extérieur
DE10346970B3 (de) * 2003-10-09 2004-11-18 Siemens Ag Verfahren zum Steuern einer Brennkraftmaschine
DE10353639A1 (de) * 2003-11-17 2005-06-16 Robert Bosch Gmbh Brennstoffeinspritzventil
CN100422545C (zh) * 2004-12-15 2008-10-01 浙江飞亚电子有限公司 一种喷油嘴
US8225768B2 (en) 2008-01-07 2012-07-24 Mcalister Technologies, Llc Integrated fuel injector igniters suitable for large engine applications and associated methods of use and manufacture
WO2011034655A2 (fr) 2009-08-27 2011-03-24 Mcalister Technologies, Llc Isolateur céramique et ses procédés d'utilisation et de fabrication
US8561598B2 (en) 2008-01-07 2013-10-22 Mcalister Technologies, Llc Method and system of thermochemical regeneration to provide oxygenated fuel, for example, with fuel-cooled fuel injectors
US8387599B2 (en) 2008-01-07 2013-03-05 Mcalister Technologies, Llc Methods and systems for reducing the formation of oxides of nitrogen during combustion in engines
US8635985B2 (en) 2008-01-07 2014-01-28 Mcalister Technologies, Llc Integrated fuel injectors and igniters and associated methods of use and manufacture
WO2011028331A2 (fr) 2009-08-27 2011-03-10 Mcalister Technologies, Llc Mise en forme d'une charge de carburant dans une chambre de combustion à l'aide de plusieurs systèmes d'entraînement et/ou de commande d'ionisation
US8413634B2 (en) 2008-01-07 2013-04-09 Mcalister Technologies, Llc Integrated fuel injector igniters with conductive cable assemblies
US7628137B1 (en) 2008-01-07 2009-12-08 Mcalister Roy E Multifuel storage, metering and ignition system
US8074625B2 (en) * 2008-01-07 2011-12-13 Mcalister Technologies, Llc Fuel injector actuator assemblies and associated methods of use and manufacture
US8365700B2 (en) 2008-01-07 2013-02-05 Mcalister Technologies, Llc Shaping a fuel charge in a combustion chamber with multiple drivers and/or ionization control
US9316189B2 (en) * 2008-01-14 2016-04-19 North Carolina State University Fuel injection device for an internal combustion engine, and associated method
WO2010055927A1 (fr) * 2008-11-14 2010-05-20 日立オートモティブシステムズ株式会社 Appareil d'injection de carburant
JP5537049B2 (ja) * 2009-03-06 2014-07-02 日立オートモティブシステムズ株式会社 筒内噴射式火花点火機関
KR101033080B1 (ko) * 2009-06-24 2011-05-06 현대중공업 주식회사 디젤 엔진용 연료 분사밸브
SG181518A1 (en) 2009-12-07 2012-07-30 Mcalister Technologies Llc Adaptive control system for fuel injectors and igniters
US20110297753A1 (en) 2010-12-06 2011-12-08 Mcalister Roy E Integrated fuel injector igniters configured to inject multiple fuels and/or coolants and associated methods of use and manufacture
CA2788577C (fr) 2010-02-13 2014-04-01 Mcalister Technologies, Llc Ensembles injecteurs de combustible comprenant des modificateurs de force acoustique, et procedes d'utilisation et de fabrication associes
US8297265B2 (en) 2010-02-13 2012-10-30 Mcalister Technologies, Llc Methods and systems for adaptively cooling combustion chambers in engines
KR101144482B1 (ko) 2010-10-06 2012-05-11 (주)제너진 엔진의 직분사 인젝터
US8528519B2 (en) 2010-10-27 2013-09-10 Mcalister Technologies, Llc Integrated fuel injector igniters suitable for large engine applications and associated methods of use and manufacture
US8091528B2 (en) 2010-12-06 2012-01-10 Mcalister Technologies, Llc Integrated fuel injector igniters having force generating assemblies for injecting and igniting fuel and associated methods of use and manufacture
US8820275B2 (en) 2011-02-14 2014-09-02 Mcalister Technologies, Llc Torque multiplier engines
WO2013025626A1 (fr) 2011-08-12 2013-02-21 Mcalister Technologies, Llc Ensemble vanne de réglage de débit à actionnement acoustique comprenant une pluralité de soupapes flexibles
EP2742218A4 (fr) 2011-08-12 2015-03-25 Mcalister Technologies Llc Systèmes et procédés pour l'amélioration du refroidissement d'un moteur et de la production d'énergie
US20130068200A1 (en) * 2011-09-15 2013-03-21 Paul Reynolds Injector Valve with Miniscule Actuator Displacement
CN102912379A (zh) * 2012-10-25 2013-02-06 攀钢集团攀枝花钢铁研究院有限公司 一种制备金属钛的方法
US20140131466A1 (en) 2012-11-12 2014-05-15 Advanced Green Innovations, LLC Hydraulic displacement amplifiers for fuel injectors
US9309846B2 (en) 2012-11-12 2016-04-12 Mcalister Technologies, Llc Motion modifiers for fuel injection systems
US9744540B2 (en) * 2015-04-21 2017-08-29 Dresser, Inc. Water injector nozzle

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE231126C (fr)
US2796296A (en) * 1953-04-27 1957-06-18 John F Campbell Nozzle exit valve
DE967935C (de) 1953-12-13 1957-12-27 Kloeckner Humboldt Deutz Ag Brennstoffeinspritzventil
US4197997A (en) * 1978-07-28 1980-04-15 Ford Motor Company Floating ring fuel injector valve
DE3300670A1 (de) 1982-01-23 1983-08-04 Lucas Industries P.L.C., Birmingham, West Midlands Kraftstoffeinspritzduese
DE3719459A1 (de) * 1987-06-11 1988-12-29 Bosch Gmbh Robert Kraftstoff-einspritzduese fuer brennkraftmaschinen
US4993643A (en) 1988-10-05 1991-02-19 Ford Motor Company Fuel injector with variable fuel spray shape or pattern
DE4005455A1 (de) 1989-02-28 1990-08-30 Volkswagen Ag Zumessventil, insbesondere kraftstoff-einspritzventil fuer eine brennkraftmaschine
US4982708A (en) * 1989-06-22 1991-01-08 Robert Bosch Gmbh Fuel injection nozzle for internal combustion engines
DE19534445C2 (de) 1995-09-16 1998-07-30 Man Nutzfahrzeuge Ag Einspritzventil für Brennkraftmaschinen
DE19642653C5 (de) * 1996-10-16 2008-02-21 Daimler Ag Verfahren zur Bildung eines zündfähigen Kraftstoff/Luft-Gemisches
DE19843570A1 (de) * 1998-09-23 2000-03-30 Bosch Gmbh Robert Brennstoffeinspritzventil
US6042028A (en) * 1999-02-18 2000-03-28 General Motors Corporation Direct injection fuel injector spray nozzle and method
DE19936944A1 (de) 1999-08-05 2001-02-08 Bosch Gmbh Robert Verfahren zum Zumessen von Brennstoff mit einem Brennstoffeinspritzventil
DE19948237A1 (de) 1999-10-07 2001-04-12 Bosch Gmbh Robert Verfahren zum Zumessen von Brennstoff mit einem Brennstoffeinspritzventil

Also Published As

Publication number Publication date
US7140562B2 (en) 2006-11-28
WO2003038273A1 (fr) 2003-05-08
EP1440239A1 (fr) 2004-07-28
JP2005507055A (ja) 2005-03-10
DE50203701D1 (de) 2005-08-25
US20040075002A1 (en) 2004-04-22
JP4377230B2 (ja) 2009-12-02
DE10152416A1 (de) 2003-06-18
KR20040054734A (ko) 2004-06-25

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