EP1013919A3 - Fuel injection valve - Google Patents

Fuel injection valve Download PDF

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Publication number
EP1013919A3
EP1013919A3 EP99124112A EP99124112A EP1013919A3 EP 1013919 A3 EP1013919 A3 EP 1013919A3 EP 99124112 A EP99124112 A EP 99124112A EP 99124112 A EP99124112 A EP 99124112A EP 1013919 A3 EP1013919 A3 EP 1013919A3
Authority
EP
European Patent Office
Prior art keywords
valve
pressure
fuel injection
injection valve
valve seat
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
EP99124112A
Other languages
German (de)
French (fr)
Other versions
EP1013919A2 (en
EP1013919B1 (en
Inventor
Walter Egler
Peter Boehland
Lorenz Betz
Ralf Hentschel
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 EP1013919A2 publication Critical patent/EP1013919A2/en
Publication of EP1013919A3 publication Critical patent/EP1013919A3/en
Application granted granted Critical
Publication of EP1013919B1 publication Critical patent/EP1013919B1/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
    • 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
    • F02M63/0017—Valves characterised by the valve actuating means electrical, e.g. using solenoid using electromagnetic 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
    • F02M2200/00—Details of fuel-injection apparatus, not otherwise provided for
    • F02M2200/04—Fuel-injection apparatus having means for avoiding effect of cavitation, e.g. erosion
    • 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
    • F02M2200/28—Details of throttles in fuel-injection apparatus

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Fluid Mechanics (AREA)
  • Electromagnetism (AREA)
  • Fuel-Injection Apparatus (AREA)

Abstract

Kraftstoffeinspritzventil für eine Hochdruckeinspritzung von Kraftstoff aus einer zentralen Hochdruckleitung in Brennräume einer Verbrennungskraftmaschine, das ein Schaltventil mit einem Ventilsitz (51) und einer Ventilkugel (50) umfasst, wobei die Ventilkugel (50) in geöffnetem Zustand mittels eines Hochdruckstrahls, der von einem mit einer zentralen Hochdruckleitung in Wirkverbindung stehenden Druckraum (20) aus einer Drosselbohrung (15) gespeist ist, vom Ventilsitz (51) abgehoben ist. Der Übergang von der Drosselbohrung (15) zum Ventilsitz (51) ist als Diffusor ausgebildet.

Figure 00000001
Figure 00000002
Fuel injection valve for a high-pressure injection of fuel from a central high-pressure line in combustion chambers of an internal combustion engine, which comprises a switching valve with a valve seat (51) and a valve ball (50), the valve ball (50) in the open state by means of a high-pressure jet which is emitted by a central high-pressure line, the pressure chamber (20), which is operatively connected, is fed from a throttle bore (15) and is lifted off the valve seat (51). The transition from the throttle bore (15) to the valve seat (51) is designed as a diffuser.
Figure 00000001
Figure 00000002
EP99124112A 1998-12-22 1999-12-02 Fuel injection valve Expired - Lifetime EP1013919B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19859537A DE19859537A1 (en) 1998-12-22 1998-12-22 Fuel injector
DE19859537 1998-12-22

Publications (3)

Publication Number Publication Date
EP1013919A2 EP1013919A2 (en) 2000-06-28
EP1013919A3 true EP1013919A3 (en) 2002-02-13
EP1013919B1 EP1013919B1 (en) 2004-10-20

Family

ID=7892302

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99124112A Expired - Lifetime EP1013919B1 (en) 1998-12-22 1999-12-02 Fuel injection valve

Country Status (4)

Country Link
US (1) US6276335B1 (en)
EP (1) EP1013919B1 (en)
JP (1) JP2000186647A (en)
DE (2) DE19859537A1 (en)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10007175B9 (en) * 2000-02-17 2004-11-04 Siemens Ag Injection valve for injecting fuel into an internal combustion engine
DE10039215A1 (en) * 2000-08-11 2002-02-28 Bosch Gmbh Robert Seat valve arrangement, in particular for a fuel injection system of an internal combustion engine
JP2003113761A (en) 2001-08-01 2003-04-18 Denso Corp Fuel injection valve
DE10152173A1 (en) * 2001-10-23 2003-04-30 Bosch Gmbh Robert Solenoid valve for controlling an injection valve
US7111614B1 (en) 2005-08-29 2006-09-26 Caterpillar Inc. Single fluid injector with rate shaping capability
DE102006034111A1 (en) * 2006-07-24 2008-01-31 Robert Bosch Gmbh Servo-valve-controlled injector for injecting fuel into cylinder combustion chambers of internal combustion engines; in particular common rail injector
DE102007004553A1 (en) * 2007-01-30 2008-07-31 Robert Bosch Gmbh Ball seat valve for use in injecting device, has diffuser arranged between choke valve and valve seat, and side turned towards seat is provided with narrowing that includes narrowing section turned away from seat
DE102008044096A1 (en) 2008-11-27 2010-06-02 Robert Bosch Gmbh Method for producing throttle bores with a low caviation transfer point
DE102009028943A1 (en) * 2009-08-27 2011-03-03 Robert Bosch Gmbh Cavitation erosion-optimized ball seat valve
JP5051279B2 (en) * 2009-12-21 2012-10-17 株式会社デンソー Constant residual pressure valve
DE102010063981A1 (en) * 2010-12-22 2012-06-28 Continental Automotive Gmbh Magnetodynamic actuator and method for actuating a fuel injection valve
DE102013214589A1 (en) * 2013-07-25 2015-01-29 Robert Bosch Gmbh Switching valve for a fuel injector
DE102015204255A1 (en) * 2015-03-10 2016-09-15 Robert Bosch Gmbh Fuel injector for a fuel injection system
FR3055370B1 (en) * 2016-09-01 2020-05-01 Delphi Technologies Ip Limited COIL ASSEMBLY

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2316447A (en) * 1996-08-23 1998-02-25 Daimler Benz Ag I.c. engine common rail fuel injection valve
EP0851115A1 (en) * 1996-12-23 1998-07-01 ELASIS SISTEMA RICERCA FIAT NEL MEZZOGIORNO Società Consortile per Azioni Electromagnetic metering valve with a ball shutter for a fuel injector
US5806766A (en) * 1996-05-08 1998-09-15 Siemens Aktiengesellschaft Injection valve

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1250900B (en) * 1991-12-24 1995-04-21 Elasis Sistema Ricerca Fiat ELECTROMAGNETICALLY OPERATED FUEL INJECTION VALVE.
CH689282A5 (en) * 1994-03-29 1999-01-29 Christian Dipl-Ing Eth Mathis Injection valve for a particular intended as a diesel engine internal combustion engine.
IT232490Y1 (en) * 1994-07-01 2000-01-10 Elasis Sistema Ricerca Fiat BLOCK TRAVEL ADJUSTMENT DEVICE FOR A FUEL INJECTOR
ATE199966T1 (en) * 1995-06-02 2001-04-15 Ganser Hydromag FUEL INJECTION VALVE FOR COMBUSTION ENGINES
DE19624001A1 (en) * 1996-06-15 1997-12-18 Bosch Gmbh Robert Fuel injection device for internal combustion engines
US5890653A (en) * 1998-04-23 1999-04-06 Stanadyne Automotive Corp. Sensing and control methods and apparatus for common rail injectors
DE19822503C1 (en) * 1998-05-19 1999-11-25 Siemens Ag Control valve for fuel injector
JP3704957B2 (en) * 1998-07-06 2005-10-12 いすゞ自動車株式会社 Injector

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5806766A (en) * 1996-05-08 1998-09-15 Siemens Aktiengesellschaft Injection valve
GB2316447A (en) * 1996-08-23 1998-02-25 Daimler Benz Ag I.c. engine common rail fuel injection valve
EP0851115A1 (en) * 1996-12-23 1998-07-01 ELASIS SISTEMA RICERCA FIAT NEL MEZZOGIORNO Società Consortile per Azioni Electromagnetic metering valve with a ball shutter for a fuel injector

Also Published As

Publication number Publication date
US6276335B1 (en) 2001-08-21
DE19859537A1 (en) 2000-07-06
EP1013919A2 (en) 2000-06-28
EP1013919B1 (en) 2004-10-20
DE59910896D1 (en) 2004-11-25
JP2000186647A (en) 2000-07-04

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