EP1387939A1 - Soupape d'injection de carburant pour moteurs a combustion - Google Patents

Soupape d'injection de carburant pour moteurs a combustion

Info

Publication number
EP1387939A1
EP1387939A1 EP02726069A EP02726069A EP1387939A1 EP 1387939 A1 EP1387939 A1 EP 1387939A1 EP 02726069 A EP02726069 A EP 02726069A EP 02726069 A EP02726069 A EP 02726069A EP 1387939 A1 EP1387939 A1 EP 1387939A1
Authority
EP
European Patent Office
Prior art keywords
valve needle
pressure
valve
piston rod
control chamber
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
EP02726069A
Other languages
German (de)
English (en)
Other versions
EP1387939B1 (fr
Inventor
Peter Boehland
Sebastian Kanne
Godehard Nentwig
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 EP1387939A1 publication Critical patent/EP1387939A1/fr
Application granted granted Critical
Publication of EP1387939B1 publication Critical patent/EP1387939B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • 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
    • 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
    • F02M2200/00—Details of fuel-injection apparatus, not otherwise provided for
    • F02M2200/46—Valves, e.g. injectors, with concentric valve bodies

Abstract

L'invention concerne une soupape d'injection de carburant pour moteurs à combustion, cette soupape comprenant un corps (1) dans lequel un pointeau de soupape extérieur (10) en forme de piston est disposé mobile longitudinalement dans un trou (3) ménagé dans le corps, ce pointeau coopérant avec un siège de soupape (13) formé au niveau de l'extrémité du trou (3) côté chambre de combustion pour commander au moins une ouverture d'injection (7). Une chambre de commande (24) est formée dans le corps (1), la pression dans cette chambre de commande (24) pouvant être régulée par une soupape (33) et une force de fermeture pouvant être exercée au moins indirectement sur le pointeau de soupape extérieur (10) dans la direction du siège de soupape (13) par l'intermédiaire de la pression dans la chambre de commande (24). Le pointeau de soupape extérieur (10) présente au moins une face de pression (9 ; 101). Dans le pointeau de soupape extérieur (10) est guidé un pointeau de soupape intérieur (12) qui commande au moins une ouverture d'injection (7) supplémentaire au niveau du siège de soupape (13) et qui est sollicité par la pression dans la chambre de commande (24) au moins indirectement dans la direction du siège de soupape (13).
EP02726069A 2001-05-08 2002-03-22 Soupape d'injection de carburant pour moteurs a combustion Expired - Lifetime EP1387939B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10122241 2001-05-08
DE10122241A DE10122241A1 (de) 2001-05-08 2001-05-08 Kraftstoffeinspritzventil für Brennkraftmaschinen
PCT/DE2002/001036 WO2002090754A1 (fr) 2001-05-08 2002-03-22 Soupape d'injection de carburant pour moteurs a combustion

Publications (2)

Publication Number Publication Date
EP1387939A1 true EP1387939A1 (fr) 2004-02-11
EP1387939B1 EP1387939B1 (fr) 2008-01-16

Family

ID=7683966

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02726069A Expired - Lifetime EP1387939B1 (fr) 2001-05-08 2002-03-22 Soupape d'injection de carburant pour moteurs a combustion

Country Status (5)

Country Link
US (1) US7117842B2 (fr)
EP (1) EP1387939B1 (fr)
JP (1) JP4116448B2 (fr)
DE (2) DE10122241A1 (fr)
WO (1) WO2002090754A1 (fr)

Families Citing this family (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10205970A1 (de) * 2002-02-14 2003-09-04 Bosch Gmbh Robert Kraftstoffeinspritzventil für Brennkraftmaschinen
DE10227277A1 (de) * 2002-06-19 2004-01-08 Robert Bosch Gmbh Kraftstoffeinspritzventil für Brennkraftmaschinen
DE10246974A1 (de) * 2002-10-09 2004-04-22 Robert Bosch Gmbh Kraftstoffeinspritzvorrichtung für eine Brennkraftmaschine
DE10312586A1 (de) * 2003-03-21 2004-09-30 Robert Bosch Gmbh Kraftstoffeinspritzventil für Brennkraftmaschinen
DE10312738B4 (de) * 2003-03-21 2005-02-24 Siemens Ag Einspritzventil mit hydraulisch betätigter Nadel und Hohlnadel und Verfahren zum Steuern einer Einspritzung
DE10326043A1 (de) * 2003-06-10 2004-12-30 Robert Bosch Gmbh Einspritzdüse für Brennkraftmaschinen
DE10330705B4 (de) * 2003-07-08 2014-09-04 Robert Bosch Gmbh Verfahren und Vorrichtung zur Steuerung einer Brennkraftmaschine
DE10334209A1 (de) * 2003-07-26 2005-02-10 Robert Bosch Gmbh Kraftstoff-Einspritzvorrichtung für eine Brennkraftmaschine
DE10338228A1 (de) * 2003-08-20 2005-03-10 Bosch Gmbh Robert Kraftstoffeinspritzventil für Brennkraftmaschinen
DE10354878A1 (de) 2003-11-24 2005-06-09 Robert Bosch Gmbh Kraftstoff-Einspritzvorrichtung, insbesondere für eine Brennkraftmaschine mit Kraftstoff-Direkteinspritzung, sowie Verfahren zu ihrer Herstellung
DE10357769B4 (de) * 2003-12-10 2007-06-21 Siemens Ag Kraftstoffeinspritzventil
DE102004010760A1 (de) * 2004-03-05 2005-09-22 Robert Bosch Gmbh Kraftstoffeinspritzeinrichtung für Brennkraftmaschinen mit Nadelhubdämpfung
DE102004015360A1 (de) * 2004-03-30 2005-10-20 Bosch Gmbh Robert Kraftstoffeinspritzventil für Brennkraftmaschinen
DE102004030448A1 (de) * 2004-06-24 2006-01-12 Robert Bosch Gmbh Kraftstoffeinspritzvorrichtung
ATE388319T1 (de) * 2004-08-13 2008-03-15 Delphi Tech Inc Einspritzdüse
EP1643117B1 (fr) * 2004-10-01 2007-08-29 Delphi Technologies, Inc. Buse d'injection
DE102004051756A1 (de) * 2004-10-23 2006-04-27 Robert Bosch Gmbh Kraftstoffeinspritzventil für Brennkraftmaschinen
US7507210B2 (en) * 2006-05-01 2009-03-24 Ethicon Endo-Surgery, Inc. Biopsy cannula adjustable depth stop
EP1835145B1 (fr) * 2006-05-09 2012-06-20 Okamura Yugen Kaisha Moteur a combustion interne a piston rotatif
DE102007004553A1 (de) * 2007-01-30 2008-07-31 Robert Bosch Gmbh Kugelsitzventil mit verringertem Erosionsverhalten
DE102007011047A1 (de) * 2007-03-07 2008-09-11 Robert Bosch Gmbh Magnetventilinjektor
EP2674608B1 (fr) * 2012-06-13 2015-08-12 Delphi International Operations Luxembourg S.à r.l. Injecteur à carburant
DE102015211918A1 (de) * 2015-06-26 2016-12-29 Robert Bosch Gmbh Kraftstoffinjektor
CN111648893A (zh) * 2020-05-27 2020-09-11 天津职业技术师范大学(中国职业培训指导教师进修中心) 一种电控喷油器控制阀用柱塞、快速响应电控喷油器控制阀及其控制方法
CN114165373A (zh) * 2021-12-17 2022-03-11 中国船舶重工集团公司第七一一研究所 喷油器和共轨系统
US11815055B1 (en) * 2022-12-01 2023-11-14 Caterpillar Inc. Multi-fuel injector and method

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4023223A1 (de) 1990-07-21 1992-01-23 Bosch Gmbh Robert Kraftstoff-einspritzduese fuer brennkraftmaschinen
GB9709678D0 (en) * 1997-05-14 1997-07-02 Lucas Ind Plc Fuel injector
DE19756986C1 (de) * 1997-12-20 1999-06-02 Daimler Chrysler Ag Speichereinspritzsystem
DE19827267A1 (de) 1998-06-18 1999-12-23 Bosch Gmbh Robert Kraftstoff-Einspritzventil für Hochdruck-Einspritzung mit verbesserter Steuerung der Kraftstoffzufuhr
DE59909449D1 (de) * 1998-08-06 2004-06-17 Siemens Ag Kraftstoffeinspritzdüse
GB9916464D0 (en) * 1999-07-14 1999-09-15 Lucas Ind Plc Fuel injector
AT3763U3 (de) * 1999-08-05 2000-12-27 Avl List Gmbh Nockenbetätigte einspritzeinrichtung für eine brennkraftmaschine
DE10221384A1 (de) * 2002-05-14 2003-11-27 Bosch Gmbh Robert Kraftstoffeinspritzeinrichtung für eine Brennkraftmaschine
DE10229417A1 (de) * 2002-06-29 2004-01-15 Robert Bosch Gmbh Speichereinspritzsystem mit Variodüse und Druckübersetzungseinrichtung
DE102004028521A1 (de) * 2004-06-11 2005-12-29 Robert Bosch Gmbh Kraftstoffinjektor mit mehrteiligem Einspritzventilglied und mit Druckverstärker

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO02090754A1 *

Also Published As

Publication number Publication date
EP1387939B1 (fr) 2008-01-16
JP4116448B2 (ja) 2008-07-09
DE50211554D1 (de) 2008-03-06
DE10122241A1 (de) 2002-12-05
US20050199753A1 (en) 2005-09-15
JP2004519597A (ja) 2004-07-02
WO2002090754A1 (fr) 2002-11-14
US7117842B2 (en) 2006-10-10

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