EP1260705B1 - Kraftstoffeinspritzeinrichtung für eine Brennkraftmaschine - Google Patents

Kraftstoffeinspritzeinrichtung für eine Brennkraftmaschine Download PDF

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Publication number
EP1260705B1
EP1260705B1 EP02008448A EP02008448A EP1260705B1 EP 1260705 B1 EP1260705 B1 EP 1260705B1 EP 02008448 A EP02008448 A EP 02008448A EP 02008448 A EP02008448 A EP 02008448A EP 1260705 B1 EP1260705 B1 EP 1260705B1
Authority
EP
European Patent Office
Prior art keywords
pressure
chamber
valve
actuator
pressure 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.)
Expired - Lifetime
Application number
EP02008448A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP1260705A1 (de
Inventor
Volker Reusing
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 EP1260705A1 publication Critical patent/EP1260705A1/de
Application granted granted Critical
Publication of EP1260705B1 publication Critical patent/EP1260705B1/de
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
    • 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
    • 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
    • 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
    • F02M57/00—Fuel-injectors combined or associated with other devices
    • F02M57/02—Injectors structurally combined with fuel-injection pumps
    • 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
    • F02M59/00—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps
    • F02M59/20—Varying fuel delivery in quantity or timing
    • F02M59/36—Varying fuel delivery in quantity or timing by variably-timed valves controlling fuel passages to pumping elements or overflow passages
    • 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
    • F02M59/00—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps
    • F02M59/20—Varying fuel delivery in quantity or timing
    • F02M59/36—Varying fuel delivery in quantity or timing by variably-timed valves controlling fuel passages to pumping elements or overflow passages
    • F02M59/366—Valves being actuated electrically
    • 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
    • F02M59/00—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps
    • F02M59/44—Details, components parts, or accessories not provided for in, or of interest apart from, the apparatus of groups F02M59/02 - F02M59/42; Pumps having transducers, e.g. to measure displacement of pump rack or piston
    • F02M59/46—Valves
    • F02M59/466—Electrically operated valves, e.g. using electromagnetic or piezoelectric operating means
    • F02M59/468—Electrically operated valves, e.g. using electromagnetic or piezoelectric operating means using piezoelectric 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
    • 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
    • F02M63/0031—Valves characterized by the type of valves, e.g. special valve member details, valve seat details, valve housing details
    • F02M63/0049—Combined valve units, e.g. for controlling pumping chamber and injection valve
    • 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
    • F02M63/0059—Arrangements of valve actuators
    • F02M63/0061—Single actuator acting on two or more 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
    • 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

Definitions

  • the fuel injector 12 is below the Fuel pump 10 to the combustion chamber of the internal combustion engine arranged and connected to the pump work space 22.
  • the Fuel injection valve 12 has a valve body 26 on, which can be formed in several parts, in which a piston-shaped injection valve member 28 in a bore 30 is guided longitudinally.
  • the valve body 26 instructs its the combustion chamber of the cylinder of the internal combustion engine facing end region at least one, preferably several Injection openings 32 on.
  • the injection valve member 28 has at its end area facing the combustion chamber for example, approximately conical sealing surface 34, which with a valve seat 36 formed in the valve body 26 cooperates, from or after which the injection openings 32 lead away.

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)
  • Electromagnetism (AREA)
  • Fuel-Injection Apparatus (AREA)
EP02008448A 2001-05-17 2002-04-13 Kraftstoffeinspritzeinrichtung für eine Brennkraftmaschine Expired - Lifetime EP1260705B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10123994 2001-05-17
DE10123994A DE10123994A1 (de) 2001-05-17 2001-05-17 Kraftstoffeinspritzeinrichtung für eine Brennkraftmaschine

Publications (2)

Publication Number Publication Date
EP1260705A1 EP1260705A1 (de) 2002-11-27
EP1260705B1 true EP1260705B1 (de) 2004-10-20

Family

ID=7685111

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02008448A Expired - Lifetime EP1260705B1 (de) 2001-05-17 2002-04-13 Kraftstoffeinspritzeinrichtung für eine Brennkraftmaschine

Country Status (4)

Country Link
US (1) US6758414B2 (ja)
EP (1) EP1260705B1 (ja)
JP (1) JP3658575B2 (ja)
DE (2) DE10123994A1 (ja)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10123993A1 (de) * 2001-05-17 2002-11-21 Bosch Gmbh Robert Kraftstoffeinspritzeinrichtung für eine Brennkraftmaschine
DE10201470A1 (de) * 2002-01-16 2003-08-07 Bosch Gmbh Robert Doppeltschaltendes Ventil für Kraftstoffeinspritzanlagen
WO2004072470A1 (en) * 2003-02-12 2004-08-26 Robert Bosch Gmbh Fuel injector pump system with high pressure post injection
ATE375446T1 (de) 2004-01-13 2007-10-15 Delphi Tech Inc Kraftstoffeinspritzventil
DE102004061799A1 (de) 2004-12-22 2006-07-06 Robert Bosch Gmbh Kraftstoffeinspritzeinrichtung für eine Brennkraftmaschine
US8500045B2 (en) * 2009-07-20 2013-08-06 Caterpillar Inc. Parallel circuit fuel filtration for fuel injectors
US10982635B2 (en) * 2012-05-29 2021-04-20 Delphi Technologies Ip Limited Fuel injector and method for controlling the same
WO2015164256A1 (en) * 2014-04-21 2015-10-29 Stanadyne Llc Pressure relief valve for single plunger fuel pump

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4856713A (en) * 1988-08-04 1989-08-15 Energy Conservation Innovations, Inc. Dual-fuel injector
US5494219A (en) * 1994-06-02 1996-02-27 Caterpillar Inc. Fuel injection control valve with dual solenoids
US5893516A (en) * 1996-08-06 1999-04-13 Lucas Industries Plc Injector
JPH10274016A (ja) * 1997-03-28 1998-10-13 Fuji Heavy Ind Ltd 電磁式動弁制御装置
US6199533B1 (en) * 1999-02-01 2001-03-13 Cummins Engine Company, Inc. Pilot valve controlled three-way fuel injection control valve assembly
US6036120A (en) * 1998-03-27 2000-03-14 General Motors Corporation Fuel injector and method
US6073862A (en) * 1998-09-16 2000-06-13 Westport Research Inc. Gaseous and liquid fuel injector
DE10059628A1 (de) * 2000-12-01 2002-06-13 Bosch Gmbh Robert Modular aufgebauter Injektor zum Einspritzen von Kraftstoff

Also Published As

Publication number Publication date
JP2002349387A (ja) 2002-12-04
DE10123994A1 (de) 2002-11-21
DE50201333D1 (de) 2004-11-25
US6758414B2 (en) 2004-07-06
EP1260705A1 (de) 2002-11-27
US20020170537A1 (en) 2002-11-21
JP3658575B2 (ja) 2005-06-08

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