EP0949415A3 - A fuel injection device for internal combustion engines - Google Patents

A fuel injection device for internal combustion engines Download PDF

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Publication number
EP0949415A3
EP0949415A3 EP98123745A EP98123745A EP0949415A3 EP 0949415 A3 EP0949415 A3 EP 0949415A3 EP 98123745 A EP98123745 A EP 98123745A EP 98123745 A EP98123745 A EP 98123745A EP 0949415 A3 EP0949415 A3 EP 0949415A3
Authority
EP
European Patent Office
Prior art keywords
fuel injection
injection
fuel
internal combustion
combustion engines
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
EP98123745A
Other languages
German (de)
French (fr)
Other versions
EP0949415A2 (en
EP0949415B1 (en
Inventor
Rudolf Dr. Heinz
Dieter Kienzler
Roger Potschin
Klaus-Peter Dr. Schmoll
Friedrich Boecking
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 EP0949415A2 publication Critical patent/EP0949415A2/en
Publication of EP0949415A3 publication Critical patent/EP0949415A3/en
Application granted granted Critical
Publication of EP0949415B1 publication Critical patent/EP0949415B1/en
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
    • 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
    • F02M63/0056—Throttling valves, e.g. having variable opening positions throttling the flow
    • 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
    • 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
    • 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
    • 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
    • F02M63/007—Details not provided for in, or of interest apart from, the apparatus of the groups F02M63/0014 - F02M63/0059
    • F02M63/0078—Valve member details, e.g. special shape, hollow or fuel passages in the valve member

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

Es wird eine Kraftstoffeinspritzvorrichtung für Brennkraftmaschinen vorgeschlagen, die aus einer Kraftstoffhochdruckquelle (1) Kraftstoffeinspritzventile (9) gesteuert durch eine Steuereinrichtung (8) mit Kraftstoff versorgt. Das Kraftstoffeinspritzventil weist dabei ein Einspritzventilglied (14) auf, dessen Öffnungs- oder Schließstellung durch einen dieses Einspritzventilglied beaufschlagenden in einem Steuerraum (24) eingestellten Druck bestimmt wird. Dazu muß zur Durchführung einer Einspritzung der Druck im Steuerraum (24) entlastet werden, was mit einem Steuerventil (31) erzielt wird, das sequentiell zwei unterschiedliche Abschlußquerschnitte eines Abflußkanals (49) des Steuerraums (24) nacheinander aufsteuert. Damit ist es möglich, eine angepaßte Öffnung des Kraftstoffeinspritzventilglieds für eine Vor- und eine Haupteinspritzung zu bewirken.

Figure 00000001
The invention relates to a fuel injection device for internal combustion engines, which supplies fuel injection valves (9) with fuel from a high-pressure fuel source (1) controlled by a control device (8). The fuel injection valve has an injection valve member (14), the opening or closing position of which is determined by a pressure acting on this injection valve member in a control chamber (24). For this purpose, the pressure in the control chamber (24) has to be relieved in order to carry out an injection, which is achieved with a control valve (31) which sequentially opens two different end cross sections of a discharge channel (49) of the control chamber (24) in succession. It is thus possible to bring about an adapted opening of the fuel injection valve member for a pre-injection and a main injection.
Figure 00000001
EP98123745A 1998-04-11 1998-12-14 A fuel injection device for internal combustion engines Expired - Lifetime EP0949415B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19816316 1998-04-11
DE19816316A DE19816316A1 (en) 1998-04-11 1998-04-11 Fuel injection device for internal combustion engines

Publications (3)

Publication Number Publication Date
EP0949415A2 EP0949415A2 (en) 1999-10-13
EP0949415A3 true EP0949415A3 (en) 2002-06-12
EP0949415B1 EP0949415B1 (en) 2004-10-13

Family

ID=7864365

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98123745A Expired - Lifetime EP0949415B1 (en) 1998-04-11 1998-12-14 A fuel injection device for internal combustion engines

Country Status (4)

Country Link
US (1) US6085719A (en)
EP (1) EP0949415B1 (en)
JP (1) JPH11324848A (en)
DE (2) DE19816316A1 (en)

Families Citing this family (34)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19826791A1 (en) * 1998-06-16 1999-12-23 Bosch Gmbh Robert Valve control unit for a fuel injector
DE19860397A1 (en) * 1998-12-28 2000-06-29 Bosch Gmbh Robert Fuel injection device for internal combustion engines
DE19907544C2 (en) 1999-02-22 2002-12-05 Siemens Ag Injector for an injection system of an internal combustion engine
DE60015218T2 (en) * 1999-04-01 2006-02-16 Delphi Technologies, Inc., Troy Fuel injector
DE19940292B4 (en) * 1999-08-25 2008-03-06 Robert Bosch Gmbh Control valve for a fuel injection valve
DE19940300A1 (en) * 1999-08-25 2001-03-01 Bosch Gmbh Robert Control valve for an injector
EP1081372B1 (en) * 1999-08-31 2004-10-13 Denso Corporation Fuel injection device
DE19941463A1 (en) * 1999-09-01 2001-03-15 Bosch Gmbh Robert Magnet injector for fuel storage injection systems
US20030155021A1 (en) * 2000-01-22 2003-08-21 Friedrich Boecking Valve for the control of fluids
DE10015268A1 (en) * 2000-03-28 2001-10-04 Siemens Ag Injector with bypass throttle
DE10031579A1 (en) * 2000-06-29 2002-01-17 Bosch Gmbh Robert Pressure controlled injector with vario register injector
DE10031582A1 (en) * 2000-06-29 2002-01-17 Bosch Gmbh Robert Pressure controlled injector with controlled nozzle needle
DE10031580A1 (en) * 2000-06-29 2002-01-17 Bosch Gmbh Robert Pressure-controlled control part for common rail injectors
DE10035814A1 (en) * 2000-07-22 2002-01-31 Bosch Gmbh Robert Method for controlling an injection valve for fuel injection into an internal combustion engine
DE10046823B4 (en) * 2000-09-20 2004-07-15 L'orange Gmbh Servo control valve for injection injectors
US6764028B2 (en) 2001-04-04 2004-07-20 Synerject, Llc Fuel injector nozzles
US6634339B2 (en) 2001-10-31 2003-10-21 Caterpillar Inc Front end rate shaping valve concept for a fuel injection system
DE10154802A1 (en) * 2001-11-08 2003-05-22 Bosch Gmbh Robert Fuel injection device for an internal combustion engine
WO2004079180A1 (en) * 2003-03-04 2004-09-16 Siemens Aktiengesellschaft Valve comprising a spring element for a fuel injector
US7124744B2 (en) * 2003-07-31 2006-10-24 Caterpillar Inc. Variable control orifice member and fuel injector using same
DE10335059A1 (en) * 2003-07-31 2005-02-17 Robert Bosch Gmbh Switching valve for a fuel injector with pressure booster
DE102004014198B3 (en) * 2004-03-23 2005-10-13 Siemens Ag Servo valve and injector
EP1612403B1 (en) * 2004-06-30 2007-01-10 C.R.F. Società Consortile per Azioni Servo valve for controlling an internal combustion engine fuel injector
EP1621764B1 (en) * 2004-06-30 2007-11-07 C.R.F. Società Consortile per Azioni Internal combustion engine fuel injector
AT501668B1 (en) * 2004-08-24 2007-03-15 Bosch Gmbh Robert CONTROL VALVE FOR AN INJECTION NOZZLE
DE102004046191B3 (en) * 2004-09-23 2006-04-13 Siemens Ag Servo valve and injector
DE102006021741A1 (en) * 2006-05-10 2007-11-15 Robert Bosch Gmbh Fuel injector with pressure compensated control valve
EP2025921B1 (en) * 2007-07-30 2009-10-14 C.R.F. Società Consortile per Azioni Fuel injector with balanced metering servovalve, for an internal combustion engine
DE102008032385B4 (en) * 2008-07-09 2018-03-29 Audi Ag High-pressure injection arrangement for a direct-injection internal combustion engine
DE102009001003B4 (en) * 2009-02-19 2017-11-30 Robert Bosch Gmbh Fuel injector
DE102011017217A1 (en) 2011-04-15 2012-10-18 Mühlbauer Ag Apparatus and method for depositing sheet products
CH710127A1 (en) * 2014-09-17 2016-03-31 Ganser Crs Ag Fuel injection valve for internal combustion engines.
EP3230580B1 (en) 2014-12-11 2019-05-08 Delphi Technologies IP Limited Control valve assembly
US10077748B2 (en) * 2014-12-23 2018-09-18 Cummins Inc. Fuel injector for common rail

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0745764A2 (en) * 1995-06-02 1996-12-04 Ganser-Hydromag Ag Fuel injection valve for internal combustion engines
DE19624001A1 (en) * 1996-06-15 1997-12-18 Bosch Gmbh Robert Fuel injection device for internal combustion engines
EP0816670A1 (en) * 1996-07-02 1998-01-07 Siemens Automotive Corporation Piezoelectric controlled common rail injector with hydraulic amplification of piezoelectric stroke
EP0829641A2 (en) * 1996-08-31 1998-03-18 Isuzu Motors Limited A fuel injection device for engines

Family Cites Families (7)

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JPH07145750A (en) * 1993-11-25 1995-06-06 Zexel Corp Fuel injection control device
JP2885076B2 (en) * 1994-07-08 1999-04-19 三菱自動車工業株式会社 Accumulator type fuel injection device
JPH08158981A (en) * 1994-12-02 1996-06-18 Nippondenso Co Ltd Fuel injection device
DE19616812B4 (en) * 1995-04-27 2004-09-30 Nippon Soken, Inc., Nishio Fuel injector
JPH09209867A (en) * 1996-02-07 1997-08-12 Mitsubishi Motors Corp Fuel injector
FI101739B1 (en) * 1996-08-16 1998-08-14 Waertsila Nsd Oy Ab An injection valve
DE19738397A1 (en) * 1997-09-03 1999-03-18 Bosch Gmbh Robert Fuel injection system for an internal combustion engine

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0745764A2 (en) * 1995-06-02 1996-12-04 Ganser-Hydromag Ag Fuel injection valve for internal combustion engines
DE19624001A1 (en) * 1996-06-15 1997-12-18 Bosch Gmbh Robert Fuel injection device for internal combustion engines
EP0816670A1 (en) * 1996-07-02 1998-01-07 Siemens Automotive Corporation Piezoelectric controlled common rail injector with hydraulic amplification of piezoelectric stroke
EP0829641A2 (en) * 1996-08-31 1998-03-18 Isuzu Motors Limited A fuel injection device for engines

Also Published As

Publication number Publication date
US6085719A (en) 2000-07-11
DE19816316A1 (en) 1999-10-14
DE59812121D1 (en) 2004-11-18
EP0949415A2 (en) 1999-10-13
JPH11324848A (en) 1999-11-26
EP0949415B1 (en) 2004-10-13

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