EP1016783A3 - Fuel injection device for internal combustion engines - Google Patents

Fuel injection device for internal combustion engines Download PDF

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Publication number
EP1016783A3
EP1016783A3 EP99124452A EP99124452A EP1016783A3 EP 1016783 A3 EP1016783 A3 EP 1016783A3 EP 99124452 A EP99124452 A EP 99124452A EP 99124452 A EP99124452 A EP 99124452A EP 1016783 A3 EP1016783 A3 EP 1016783A3
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
EP99124452A
Other languages
German (de)
French (fr)
Other versions
EP1016783A2 (en
EP1016783B1 (en
Inventor
Roger Potschin
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 EP1016783A2 publication Critical patent/EP1016783A2/en
Publication of EP1016783A3 publication Critical patent/EP1016783A3/en
Application granted granted Critical
Publication of EP1016783B1 publication Critical patent/EP1016783B1/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
    • 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
    • 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
    • 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
    • F02M63/0033—Lift valves, i.e. having a valve member that moves perpendicularly to the plane of the valve seat
    • F02M63/0035—Poppet valves, i.e. having a mushroom-shaped valve member that moves perpendicularly to the plane of the valve seat
    • 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

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
EP99124452A 1998-12-28 1999-12-08 Fuel injection device for internal combustion engines Expired - Lifetime EP1016783B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19860397 1998-12-28
DE19860397A DE19860397A1 (en) 1998-12-28 1998-12-28 Fuel injection device for internal combustion engines

Publications (3)

Publication Number Publication Date
EP1016783A2 EP1016783A2 (en) 2000-07-05
EP1016783A3 true EP1016783A3 (en) 2002-10-23
EP1016783B1 EP1016783B1 (en) 2004-03-17

Family

ID=7892896

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99124452A Expired - Lifetime EP1016783B1 (en) 1998-12-28 1999-12-08 Fuel injection device for internal combustion engines

Country Status (4)

Country Link
US (1) US6168096B1 (en)
EP (1) EP1016783B1 (en)
JP (1) JP2000192870A (en)
DE (2) DE19860397A1 (en)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19951964A1 (en) * 1999-10-28 2001-05-03 Bosch Gmbh Robert Fuel injection valve for internal combustion engines
US6439201B1 (en) * 2000-12-20 2002-08-27 Caterpillar Inc. Fuel injector having dual flow rate capabilities and engine using same
FR2819021B1 (en) * 2000-12-28 2005-03-04 Denso Corp HYDRAULIC CONTROL VALVE AND FUEL INJECTOR USING SUCH A VALVE
DE10122246A1 (en) * 2001-05-08 2002-11-21 Bosch Gmbh Robert Fuel injector with control valve members connected in series
DE10131640A1 (en) * 2001-06-29 2003-01-16 Bosch Gmbh Robert Fuel injector with injection course shaping through switchable throttle elements
ITTO20010970A1 (en) * 2001-10-12 2003-04-12 Fiat Ricerche FUEL INJECTOR FOR AN INTERNAL COMBUSTION ENGINE.
GB0215490D0 (en) * 2002-07-04 2002-08-14 Delphi Tech Inc Control valve arrangement
EP1795738A1 (en) 2005-12-12 2007-06-13 C.R.F. Societa Consortile per Azioni Fuel-injection system for an internal-combustion engine and corresponding method for controlling fuel injection
US20070235554A1 (en) * 2006-03-29 2007-10-11 Williams Arthur R Dual stroke injector using SMA
JP5262933B2 (en) 2009-04-03 2013-08-14 株式会社デンソー Fuel injection device
JP5565291B2 (en) * 2010-12-08 2014-08-06 株式会社デンソー Fuel injection device
HUE027510T2 (en) * 2012-04-05 2016-10-28 Delphi Int Operations Luxembourg Sarl Valve arrangement
EP2975257B1 (en) * 2014-07-18 2018-01-10 Continental Automotive GmbH Control unit to control a valve pin of a fuel injector and fuel injector
DE102016216885A1 (en) 2016-09-06 2018-03-08 Continental Automotive Gmbh Fluid injector for a motor vehicle
JP6919344B2 (en) * 2017-06-06 2021-08-18 株式会社Ｓｏｋｅｎ Fuel injection device
GB2567171A (en) * 2017-10-04 2019-04-10 Delphi Tech Ip Ltd Fuel injector

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4603671A (en) * 1983-08-17 1986-08-05 Nippon Soken, Inc. Fuel injector for an internal combustion engine
US5429154A (en) * 1993-03-31 1995-07-04 Nippondensco Co., Ltd. Three-way electromagnetic valve
EP0949415A2 (en) * 1998-04-11 1999-10-13 Robert Bosch Gmbh A fuel injection device for internal combustion engines
DE19940290A1 (en) * 1999-08-25 2001-03-01 Bosch Gmbh Robert Control valve for a fuel injector

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT212431Z2 (en) * 1987-08-25 1989-07-04 Weber Srl THE ELECTROMAGNETIC CONTROL FOR FUEL INJECTION VALVE DIESEL CYCLE ENGINES
IT232490Y1 (en) * 1994-07-01 2000-01-10 Elasis Sistema Ricerca Fiat BLOCK TRAVEL ADJUSTMENT DEVICE FOR A FUEL INJECTOR
DE19616812B4 (en) * 1995-04-27 2004-09-30 Nippon Soken, Inc., Nishio Fuel injector
JP3584554B2 (en) * 1995-07-26 2004-11-04 株式会社デンソー Accumulation type fuel injection device
JP3446432B2 (en) * 1995-12-05 2003-09-16 株式会社デンソー Fuel injection device
DE19647304C1 (en) * 1996-11-15 1998-01-22 Daimler Benz Ag Fuel injector for internal combustion engine
US5860597A (en) * 1997-03-24 1999-01-19 Cummins Engine Company, Inc. Injection rate shaping nozzle assembly for a fuel injector
DE19748999C2 (en) * 1997-11-06 2002-11-07 Daimler Chrysler Ag Solenoid valve controlled injector for a storage system of a multi-cylinder internal combustion engine
US6092737A (en) * 1999-02-02 2000-07-25 General Motors Corporation Direct acting fuel injector

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4603671A (en) * 1983-08-17 1986-08-05 Nippon Soken, Inc. Fuel injector for an internal combustion engine
US5429154A (en) * 1993-03-31 1995-07-04 Nippondensco Co., Ltd. Three-way electromagnetic valve
EP0949415A2 (en) * 1998-04-11 1999-10-13 Robert Bosch Gmbh A fuel injection device for internal combustion engines
DE19940290A1 (en) * 1999-08-25 2001-03-01 Bosch Gmbh Robert Control valve for a fuel injector

Also Published As

Publication number Publication date
DE59908876D1 (en) 2004-04-22
DE19860397A1 (en) 2000-06-29
US6168096B1 (en) 2001-01-02
EP1016783A2 (en) 2000-07-05
EP1016783B1 (en) 2004-03-17
JP2000192870A (en) 2000-07-11

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