EP1927747A3 - Kraftstoffeinspritzventil für Brennkraftmaschinen - Google Patents

Kraftstoffeinspritzventil für Brennkraftmaschinen Download PDF

Info

Publication number
EP1927747A3
EP1927747A3 EP07118346A EP07118346A EP1927747A3 EP 1927747 A3 EP1927747 A3 EP 1927747A3 EP 07118346 A EP07118346 A EP 07118346A EP 07118346 A EP07118346 A EP 07118346A EP 1927747 A3 EP1927747 A3 EP 1927747A3
Authority
EP
European Patent Office
Prior art keywords
valve
control
fuel injector
combustion engines
injector valve
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
EP07118346A
Other languages
English (en)
French (fr)
Other versions
EP1927747A2 (de
EP1927747B1 (de
Inventor
Jochen Mertens
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 EP1927747A2 publication Critical patent/EP1927747A2/de
Publication of EP1927747A3 publication Critical patent/EP1927747A3/de
Application granted granted Critical
Publication of EP1927747B1 publication Critical patent/EP1927747B1/de
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
    • 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
    • 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
    • F02M61/04—Fuel-injectors not provided for in groups F02M39/00 - F02M57/00 or F02M67/00 having valves, e.g. having a plurality of valves in series
    • F02M61/042—The valves being provided with fuel 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
    • 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
    • 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
    • F02M63/0045—Three-way valves
    • 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
    • F02M63/0047—Four-way valves or valves with more than four ways

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 ein Kraftstoffeinspritzventil für Brennkraftmaschinen mit einem Düsenkörper (2), in dem eine Ventilnadel (5) axial verschiebbar geführt ist, vorgeschlagen. Innerhalb der Ventilnadel (5) ist ein Kraftstoffkanal (6) ausgebildet, über welchem einem Ventilnadeldruckraum (15) Kraftstoff zugeführt wird. Dem Ventilnadeldruckraum (15) ist die Ventilnadel (5) mit einer ventilsitzseitigen Stirnfläche (8) zugeordnet, die eine in Öffnungsrichtung der Ventilnadel (5) wirkende Druckfläche (81) ausgebildet. Die Ventilnadel (5) ist mit einer in Schließrichtung wirkenden Schließfläche (25) einem Schlicßraum (24) ausgesetzt, an dem Systemdruck anficgt. Weiterhin ist ein Stcucrraum (30) vorgesehen, dem die Ventilnadel (5) mit einer in Schließrichtung wirkenden Steuerflächen (28) ausgesetzt ist. Der Steuerraum (30) ist über eine Zulaufbohrung (331) permanent mit einer Hochdruckleitung (34) verbunden und über eine Ablaufbohrung (341) mittels des Steuerventils (4) druckentlastbar. In den Steuerraum (30) führt mindestens eine weitere Ablaufbohrung (351), wobei die Ablaufbohrungen (341) und die weitere Ablaufbohrung (351) einzeln oder zusammen über das Steuerventil (4) mit dem Niederdruck/Rücklaufsystem verbindbar sind.
EP07118346A 2006-11-27 2007-10-12 Kraftstoffeinspritzventil für Brennkraftmaschinen Not-in-force EP1927747B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102006055801A DE102006055801A1 (de) 2006-11-27 2006-11-27 Kraftstoffeinspritzventil für Brennkraftmaschinen

Publications (3)

Publication Number Publication Date
EP1927747A2 EP1927747A2 (de) 2008-06-04
EP1927747A3 true EP1927747A3 (de) 2009-01-28
EP1927747B1 EP1927747B1 (de) 2010-01-20

Family

ID=39232879

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07118346A Not-in-force EP1927747B1 (de) 2006-11-27 2007-10-12 Kraftstoffeinspritzventil für Brennkraftmaschinen

Country Status (3)

Country Link
EP (1) EP1927747B1 (de)
AT (1) ATE455951T1 (de)
DE (2) DE102006055801A1 (de)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10335211A1 (de) * 2003-08-01 2005-02-17 Robert Bosch Gmbh Kraftstoff-Einspritzvorrichtung für eine Brennkraftmaschine
DE102004015744A1 (de) * 2004-03-31 2005-10-13 Robert Bosch Gmbh Common-Rail-Injektor
DE102005060655A1 (de) * 2005-12-19 2007-06-21 Robert Bosch Gmbh Kraftstoffeinspritzventil für Brennkraftmaschinen

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10335211A1 (de) * 2003-08-01 2005-02-17 Robert Bosch Gmbh Kraftstoff-Einspritzvorrichtung für eine Brennkraftmaschine
DE102004015744A1 (de) * 2004-03-31 2005-10-13 Robert Bosch Gmbh Common-Rail-Injektor
DE102005060655A1 (de) * 2005-12-19 2007-06-21 Robert Bosch Gmbh Kraftstoffeinspritzventil für Brennkraftmaschinen

Also Published As

Publication number Publication date
EP1927747A2 (de) 2008-06-04
EP1927747B1 (de) 2010-01-20
DE102006055801A1 (de) 2008-05-29
ATE455951T1 (de) 2010-02-15
DE502007002667D1 (de) 2010-03-11

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