EP2256332A3 - Injecteur de carburant doté d'un piston d'amplification de pression - Google Patents

Injecteur de carburant doté d'un piston d'amplification de pression Download PDF

Info

Publication number
EP2256332A3
EP2256332A3 EP10158114A EP10158114A EP2256332A3 EP 2256332 A3 EP2256332 A3 EP 2256332A3 EP 10158114 A EP10158114 A EP 10158114A EP 10158114 A EP10158114 A EP 10158114A EP 2256332 A3 EP2256332 A3 EP 2256332A3
Authority
EP
European Patent Office
Prior art keywords
pressure piston
fuel injector
low
pressure intensifier
intensifier piston
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
EP10158114A
Other languages
German (de)
English (en)
Other versions
EP2256332A2 (fr
EP2256332B1 (fr
Inventor
Christoph Buehler
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 EP2256332A2 publication Critical patent/EP2256332A2/fr
Publication of EP2256332A3 publication Critical patent/EP2256332A3/fr
Application granted granted Critical
Publication of EP2256332B1 publication Critical patent/EP2256332B1/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
    • F02M57/00—Fuel-injectors combined or associated with other devices
    • F02M57/02—Injectors structurally combined with fuel-injection pumps
    • F02M57/022—Injectors structurally combined with fuel-injection pumps characterised by the pump drive
    • F02M57/025—Injectors structurally combined with fuel-injection pumps characterised by the pump drive hydraulic, e.g. with pressure amplification
    • 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
    • F02M47/025—Hydraulically 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
    • F02M57/00—Fuel-injectors combined or associated with other devices
    • F02M57/02—Injectors structurally combined with fuel-injection pumps
    • F02M57/022—Injectors structurally combined with fuel-injection pumps characterised by the pump drive
    • F02M57/025—Injectors structurally combined with fuel-injection pumps characterised by the pump drive hydraulic, e.g. with pressure amplification
    • F02M57/026—Construction details of pressure amplifiers, e.g. fuel passages or check valves arranged in the intensifier piston or head, particular diameter relationships, stop members, arrangement of ports or conduits

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)
EP10158114.8A 2009-05-29 2010-03-29 Injecteur de carburant doté d'un piston d'amplification de pression Not-in-force EP2256332B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE200910026567 DE102009026567A1 (de) 2009-05-29 2009-05-29 Kraftstoffinjektor mit Druckverstärkerkolben

Publications (3)

Publication Number Publication Date
EP2256332A2 EP2256332A2 (fr) 2010-12-01
EP2256332A3 true EP2256332A3 (fr) 2013-03-20
EP2256332B1 EP2256332B1 (fr) 2016-08-17

Family

ID=42735573

Family Applications (1)

Application Number Title Priority Date Filing Date
EP10158114.8A Not-in-force EP2256332B1 (fr) 2009-05-29 2010-03-29 Injecteur de carburant doté d'un piston d'amplification de pression

Country Status (2)

Country Link
EP (1) EP2256332B1 (fr)
DE (1) DE102009026567A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102010000828A1 (de) 2010-01-12 2011-07-14 Robert Bosch GmbH, 70469 Druckverstärkungseinrichtung für ein Kraftstoffeinspritzsystem und Kraftstoffeinspritzsystem
US12416280B2 (en) * 2022-11-02 2025-09-16 RK IP Holdings, LLC High-pressure fuel injection system

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19954288A1 (de) * 1999-11-11 2001-05-17 Bosch Gmbh Robert Kraftstoffeinspritzventil für Brennkraftmaschinen
WO2002092998A1 (fr) * 2001-05-17 2002-11-21 Robert Bosch Gmbh Systeme d'injection de carburant pourvu d'un dispositif multiplicateur de pression et dispositif multiplicateur de pression
DE10314011A1 (de) * 2003-03-28 2004-10-07 Robert Bosch Gmbh Einpritzventil
DE102007000150A1 (de) * 2006-03-16 2007-09-20 Denso Corp., Kariya Einspritzvorrichtung

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102004053421A1 (de) 2004-11-05 2006-05-11 Robert Bosch Gmbh Kraftstoffeinspritzvorrichtung
DE102007002760A1 (de) 2007-01-18 2008-07-24 Robert Bosch Gmbh Kraftstoffinjektor mit integriertem Druckverstärker

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19954288A1 (de) * 1999-11-11 2001-05-17 Bosch Gmbh Robert Kraftstoffeinspritzventil für Brennkraftmaschinen
WO2002092998A1 (fr) * 2001-05-17 2002-11-21 Robert Bosch Gmbh Systeme d'injection de carburant pourvu d'un dispositif multiplicateur de pression et dispositif multiplicateur de pression
DE10314011A1 (de) * 2003-03-28 2004-10-07 Robert Bosch Gmbh Einpritzventil
DE102007000150A1 (de) * 2006-03-16 2007-09-20 Denso Corp., Kariya Einspritzvorrichtung

Also Published As

Publication number Publication date
EP2256332A2 (fr) 2010-12-01
DE102009026567A1 (de) 2010-12-02
EP2256332B1 (fr) 2016-08-17

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