EP2108080A1 - Injecteur pour injecter du carburant dans les chambres de combustion des moteurs à combustion interne - Google Patents

Injecteur pour injecter du carburant dans les chambres de combustion des moteurs à combustion interne

Info

Publication number
EP2108080A1
EP2108080A1 EP07847880A EP07847880A EP2108080A1 EP 2108080 A1 EP2108080 A1 EP 2108080A1 EP 07847880 A EP07847880 A EP 07847880A EP 07847880 A EP07847880 A EP 07847880A EP 2108080 A1 EP2108080 A1 EP 2108080A1
Authority
EP
European Patent Office
Prior art keywords
injector
sub
sleeve
injector according
spring
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
EP07847880A
Other languages
German (de)
English (en)
Other versions
EP2108080B1 (fr
Inventor
Hans-Christoph Magel
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 EP2108080A1 publication Critical patent/EP2108080A1/fr
Application granted granted Critical
Publication of EP2108080B1 publication Critical patent/EP2108080B1/fr
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
    • F02M47/00—Fuel-injection apparatus operated cyclically with fuel-injection valves actuated by fluid pressure
    • F02M47/02—Fuel-injection apparatus operated cyclically with fuel-injection valves actuated by fluid pressure of accumulator-injector type, i.e. having fuel pressure of accumulator tending to open, and fuel pressure in other chamber tending to close, injection valves and having means for periodically releasing that closing pressure
    • F02M47/027—Electrically actuated valves draining the chamber to release the closing 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
    • 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
    • F02M61/10—Other injectors with elongated valve bodies, i.e. of needle-valve type
    • 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
    • F02M61/10—Other injectors with elongated valve bodies, i.e. of needle-valve type
    • F02M61/12—Other injectors with elongated valve bodies, i.e. of needle-valve type characterised by the provision of guiding or centring means for 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
    • 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
    • F02M61/167—Means for compensating clearance or thermal expansion
    • 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
    • F02M2200/30—Fuel-injection apparatus having mechanical parts, the movement of which is damped
    • F02M2200/304—Fuel-injection apparatus having mechanical parts, the movement of which is damped using hydraulic 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
    • F02M2200/00—Details of fuel-injection apparatus, not otherwise provided for
    • F02M2200/70—Linkage between actuator and actuated element, e.g. between piezoelectric actuator and needle valve or pump plunger
    • F02M2200/703—Linkage between actuator and actuated element, e.g. between piezoelectric actuator and needle valve or pump plunger hydraulic
    • 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
    • F02M2547/00—Special features for fuel-injection valves actuated by fluid pressure
    • F02M2547/001—Control chambers formed by movable sleeves
    • 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
    • F02M2547/00—Special features for fuel-injection valves actuated by fluid pressure
    • F02M2547/003—Valve inserts containing control chamber and valve piston

Landscapes

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

Abstract

L'invention concerne un injecteur (1) pour injecter du carburant dans les chambres de combustion des moteurs à combustion interne, notamment un injecteur (1) à rampe commune, comprenant une zone à haute pression et un élément (14) à vanne pouvant être déplacé dans le sens axial entre une position fermée et une position ouverte libérant le flux de carburant. Conformément à l'invention, il est prévu que l'élément (14) à vanne comprenne un premier élément (16) partiel et au moins un deuxième élément (17) partiel séparé qui sont couplés hydrauliquement entre eux par le biais d'un espace (38) d'accouplement et que l'espace (38) d'accouplement n'est relié hydrauliquement avec la zone à haute pression de l'injecteur (1) que dans une direction axiale.
EP07847880A 2007-01-09 2007-12-06 Injecteur pour injecter du carburant dans les chambres de combustion des moteurs à combustion interne Not-in-force EP2108080B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102007001363A DE102007001363A1 (de) 2007-01-09 2007-01-09 Injektor zum Einspritzen von Kraftstoff in Brennräume von Brennkraftmaschinen
PCT/EP2007/063393 WO2008083881A1 (fr) 2007-01-09 2007-12-06 Injecteur pour injecter du carburant dans les chambres de combustion des moteurs à combustion interne

Publications (2)

Publication Number Publication Date
EP2108080A1 true EP2108080A1 (fr) 2009-10-14
EP2108080B1 EP2108080B1 (fr) 2012-05-30

Family

ID=38965774

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07847880A Not-in-force EP2108080B1 (fr) 2007-01-09 2007-12-06 Injecteur pour injecter du carburant dans les chambres de combustion des moteurs à combustion interne

Country Status (6)

Country Link
US (1) US8069840B2 (fr)
EP (1) EP2108080B1 (fr)
JP (2) JP5284277B2 (fr)
CN (1) CN101578445B (fr)
DE (1) DE102007001363A1 (fr)
WO (1) WO2008083881A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11506162B2 (en) 2020-11-17 2022-11-22 Caterpillar Inc. Trapped volume split check assembly in fuel injector

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102008040680A1 (de) 2008-07-24 2010-01-28 Robert Bosch Gmbh Kraftstoff-Injektor
DE102008041502A1 (de) * 2008-08-25 2010-03-04 Robert Bosch Gmbh Kraftstoffinjektor mit einem Magnetventil
DE102008041561B4 (de) 2008-08-26 2022-05-19 Robert Bosch Gmbh Kraftstoffinjektor sowie Auslegungsverfahren für einen Kraftstoffinjektor
DE102009000181A1 (de) 2009-01-13 2010-07-15 Robert Bosch Gmbh Kraftstoff-Injektor
CN102213165B (zh) * 2010-04-08 2013-02-13 北京亚新科天纬油泵油嘴股份有限公司 高压共轨电控喷油器
DE102011083260A1 (de) * 2010-09-29 2012-03-29 Robert Bosch Gmbh Kraftstoffeinspritzventil für Brennkraftmaschinen
HUE027556T2 (en) * 2012-06-13 2016-10-28 Delphi Int Operations Luxembourg Sarl atomizer
EP2863044B1 (fr) * 2013-10-15 2016-06-29 Continental Automotive GmbH Soupape d'injection
US20150252761A1 (en) * 2014-03-07 2015-09-10 Transonic Combustion, Inc. Actuation system for piezoelectric fuel injectors
GB201421885D0 (en) * 2014-12-09 2015-01-21 Delphi International Operations Luxembourg S.�.R.L. Fuel injector
FR3045109B1 (fr) * 2015-12-11 2018-01-05 Delphi Technologies Ip Limited Injecteur de carburant
US10006429B2 (en) * 2016-03-31 2018-06-26 GM Global Technology Operations LLC Variable-area poppet nozzle actuator
CN108412653B (zh) * 2018-03-30 2023-11-03 重油高科电控燃油喷射系统(重庆)有限公司 一种共轨喷油器
BR112021022895A2 (pt) 2019-05-15 2022-01-18 Clearflame Engines Inc Partida a frio para combustíveis de alta octanagem em uma arquitetura de motor a diesel
JP2021080844A (ja) 2019-11-15 2021-05-27 株式会社デンソー 燃料噴射装置

Family Cites Families (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1082164C (zh) * 1996-06-18 2002-04-03 孙平 磁耦合内驱动阀门
CN1095035C (zh) * 1997-07-02 2002-11-27 罗伯特·博施有限公司 用于控制液体的阀
DE10024703A1 (de) 2000-05-18 2001-11-22 Bosch Gmbh Robert Einspritzanordnung für ein Kraftstoff-Speichereinspritzsystem einer Verbrennungsmaschine
DE10145620B4 (de) * 2001-09-15 2006-03-02 Robert Bosch Gmbh Ventil zum Steuern von Flüssigkeiten
DE10151688A1 (de) * 2001-10-19 2003-04-30 Bosch Gmbh Robert Ventil zum Steuern von Flüssigkeiten
DE10203657A1 (de) * 2002-01-30 2003-08-28 Bosch Gmbh Robert Brennstoffeinspritzventil
DE10207227A1 (de) * 2002-02-21 2003-09-04 Bosch Gmbh Robert Kraftstoffeinspritzventil für Brennkraftmaschinen
DE10229419A1 (de) * 2002-06-29 2004-01-29 Robert Bosch Gmbh Druckübersetzter Kraftstoffinjektor mit schnellem Druckabbau bei Einspritzende
DE10229418A1 (de) * 2002-06-29 2004-01-29 Robert Bosch Gmbh Einrichtung zur Dämpfung des Nadelhubes an Kraftstoffinjektoren
DE10229415A1 (de) * 2002-06-29 2004-01-29 Robert Bosch Gmbh Einrichtung zur Nadelhubdämpfung an druckgesteuerten Kraftstoffinjektoren
DE10315016A1 (de) * 2003-04-02 2004-10-28 Robert Bosch Gmbh Kraftstoffinjektor mit leckagefreiem Servoventil
DE10315015B4 (de) * 2003-04-02 2005-12-15 Robert Bosch Gmbh Kraftstoffinjektor mit Druckverstärker und Servoventil mit optimierter Steuermenge
DE10326046A1 (de) * 2003-06-10 2004-12-30 Robert Bosch Gmbh Einspritzdüse für Brennkraftmaschinen
DE10337574A1 (de) * 2003-08-14 2005-03-10 Bosch Gmbh Robert Kraftstoffeinspritzeinrichtung für Brennkraftmaschinen
DE102004002299A1 (de) * 2004-01-16 2005-08-04 Robert Bosch Gmbh Kraftstoffinjektor mit direkt angesteuertem Einspritzventilglied
DE102004002309A1 (de) 2004-01-16 2005-08-04 Robert Bosch Gmbh Kraftstoffinjektor mit direkter Nadelstreuerung
DE102004031790A1 (de) * 2004-07-01 2006-01-26 Robert Bosch Gmbh Common-Rail-Injektor
DE102004062006A1 (de) * 2004-12-23 2006-07-13 Robert Bosch Gmbh Kraftstoffinjektor mit direkt angesteuertem Einspritzventilglied
DE102005009148A1 (de) * 2005-03-01 2006-09-07 Robert Bosch Gmbh Kraftstoffinjektor mit direktgesteuertem Einspritzventilglied mit Doppelsitz
DE102006009659A1 (de) * 2005-07-25 2007-02-01 Robert Bosch Gmbh Kraftstoff-Einspritzvorrichtung für eine Brennkraftmaschine mit Kraftstoff-Direkteinspritzung

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2008083881A1 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11506162B2 (en) 2020-11-17 2022-11-22 Caterpillar Inc. Trapped volume split check assembly in fuel injector

Also Published As

Publication number Publication date
CN101578445A (zh) 2009-11-11
JP5284277B2 (ja) 2013-09-11
US20100050990A1 (en) 2010-03-04
JP2010515853A (ja) 2010-05-13
WO2008083881A1 (fr) 2008-07-17
EP2108080B1 (fr) 2012-05-30
JP2013007389A (ja) 2013-01-10
CN101578445B (zh) 2014-04-09
US8069840B2 (en) 2011-12-06
DE102007001363A1 (de) 2008-07-10
JP5627656B2 (ja) 2014-11-19

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