EP1900932A3 - Device for injecting fuel - Google Patents

Device for injecting fuel Download PDF

Info

Publication number
EP1900932A3
EP1900932A3 EP07112398A EP07112398A EP1900932A3 EP 1900932 A3 EP1900932 A3 EP 1900932A3 EP 07112398 A EP07112398 A EP 07112398A EP 07112398 A EP07112398 A EP 07112398A EP 1900932 A3 EP1900932 A3 EP 1900932A3
Authority
EP
European Patent Office
Prior art keywords
head
disk
actuator
piston
injecting fuel
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
EP07112398A
Other languages
German (de)
French (fr)
Other versions
EP1900932B1 (en
EP1900932A2 (en
Inventor
Stefan Schuerg
Jochen Winkler
Norbert Eichelsdoerfer
Ingo Bleich
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 EP1900932A2 publication Critical patent/EP1900932A2/en
Publication of EP1900932A3 publication Critical patent/EP1900932A3/en
Application granted granted Critical
Publication of EP1900932B1 publication Critical patent/EP1900932B1/en
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
    • F02M61/16—Details not provided for in, or of interest apart from, the apparatus of groups F02M61/02 - F02M61/14
    • F02M61/168—Assembling; Disassembling; Manufacturing; Adjusting
    • 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
    • F02M63/00—Other fuel-injection apparatus having pertinent characteristics not provided for in groups F02M39/00 - F02M57/00 or F02M67/00; Details, component parts, or accessories of fuel-injection apparatus, not provided for in, or of interest apart from, the apparatus of groups F02M39/00 - F02M61/00 or F02M67/00; Combination of fuel pump with other devices, e.g. lubricating oil pump
    • F02M63/0012—Valves
    • F02M63/0014—Valves characterised by the valve actuating means
    • F02M63/0015—Valves characterised by the valve actuating means electrical, e.g. using solenoid
    • F02M63/0026—Valves characterised by the valve actuating means electrical, e.g. using solenoid using piezoelectric or magnetostrictive actuators
    • 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
    • F02M2200/00—Details of fuel-injection apparatus, not otherwise provided for
    • F02M2200/80—Fuel injection apparatus manufacture, repair or assembly
    • F02M2200/8015—Provisions for assembly of fuel injection apparatus in a certain orientation, e.g. markings, notches or specially shaped sleeves other than a clip

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)
  • Manufacturing & Machinery (AREA)
  • Fuel-Injection Apparatus (AREA)

Abstract

The injector has an injecting valve unit locking or releasing an injection opening and controlled by an actuator-operated control valve. An actuator (5) has an actuator head (7), which acts on a coupler piston (9). A leveling disk (61) is arranged between the head and the piston for adjusting longitudinal tolerances. An extension (71) is formed at the head and accommodated in a recess in the disk. A bulge (85) is formed at the disk in such a manner that a distance dimension between the head and the piston is different from predetermined dimension during wrong position of the disk.
EP07112398A 2006-09-11 2007-07-13 Device for injecting fuel Not-in-force EP1900932B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102006042601A DE102006042601A1 (en) 2006-09-11 2006-09-11 Injector for injecting fuel

Publications (3)

Publication Number Publication Date
EP1900932A2 EP1900932A2 (en) 2008-03-19
EP1900932A3 true EP1900932A3 (en) 2009-11-18
EP1900932B1 EP1900932B1 (en) 2011-03-30

Family

ID=38740193

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07112398A Not-in-force EP1900932B1 (en) 2006-09-11 2007-07-13 Device for injecting fuel

Country Status (3)

Country Link
EP (1) EP1900932B1 (en)
AT (1) ATE503924T1 (en)
DE (2) DE102006042601A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102009000875A1 (en) 2009-02-16 2010-08-19 Robert Bosch Gmbh fuel injector
DE102009001322A1 (en) 2009-03-04 2010-09-09 Robert Bosch Gmbh fuel injector

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0816670A1 (en) * 1996-07-02 1998-01-07 Siemens Automotive Corporation Piezoelectric controlled common rail injector with hydraulic amplification of piezoelectric stroke
WO2004027252A1 (en) * 2002-09-12 2004-04-01 Volkswagen Mechatronic Gmbh & Co. Kg Pump/nozzle unit and method for setting the hardness of contact areas of a control valve
WO2006134005A1 (en) * 2005-06-17 2006-12-21 Robert Bosch Gmbh Fuel injecting valve
EP1865189A2 (en) * 2006-06-07 2007-12-12 Robert Bosch Gmbh Fuel injector with a piezo actuator arranged on the low pressure side
WO2008003347A1 (en) * 2006-07-07 2008-01-10 Continental Automotive Gmbh Injection system and method for producing an injection system

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0816670A1 (en) * 1996-07-02 1998-01-07 Siemens Automotive Corporation Piezoelectric controlled common rail injector with hydraulic amplification of piezoelectric stroke
WO2004027252A1 (en) * 2002-09-12 2004-04-01 Volkswagen Mechatronic Gmbh & Co. Kg Pump/nozzle unit and method for setting the hardness of contact areas of a control valve
WO2006134005A1 (en) * 2005-06-17 2006-12-21 Robert Bosch Gmbh Fuel injecting valve
EP1865189A2 (en) * 2006-06-07 2007-12-12 Robert Bosch Gmbh Fuel injector with a piezo actuator arranged on the low pressure side
WO2008003347A1 (en) * 2006-07-07 2008-01-10 Continental Automotive Gmbh Injection system and method for producing an injection system

Also Published As

Publication number Publication date
ATE503924T1 (en) 2011-04-15
DE102006042601A1 (en) 2008-03-27
EP1900932B1 (en) 2011-03-30
EP1900932A2 (en) 2008-03-19
DE502007006826D1 (en) 2011-05-12

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