EP2105604A3 - Kraftstoffeinspritzsystem für eine Brennkraftmaschine - Google Patents

Kraftstoffeinspritzsystem für eine Brennkraftmaschine Download PDF

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Publication number
EP2105604A3
EP2105604A3 EP09001412A EP09001412A EP2105604A3 EP 2105604 A3 EP2105604 A3 EP 2105604A3 EP 09001412 A EP09001412 A EP 09001412A EP 09001412 A EP09001412 A EP 09001412A EP 2105604 A3 EP2105604 A3 EP 2105604A3
Authority
EP
European Patent Office
Prior art keywords
fuel
line
pressure
switching pressure
combustion engine
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
EP09001412A
Other languages
English (en)
French (fr)
Other versions
EP2105604B1 (de
EP2105604A2 (de
Inventor
Christian Klüting
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.)
Volkswagen AG
Original Assignee
Volkswagen AG
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 Volkswagen AG filed Critical Volkswagen AG
Publication of EP2105604A2 publication Critical patent/EP2105604A2/de
Publication of EP2105604A3 publication Critical patent/EP2105604A3/de
Application granted granted Critical
Publication of EP2105604B1 publication Critical patent/EP2105604B1/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
    • 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
    • F02M37/00—Apparatus or systems for feeding liquid fuel from storage containers to carburettors or fuel-injection apparatus; Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines
    • F02M37/0011—Constructional details; Manufacturing or assembly of elements of fuel systems; Materials therefor
    • F02M37/0023—Valves in the fuel supply and return system
    • F02M37/0029—Pressure regulator in the low pressure fuel system
    • 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
    • F02M61/16—Details not provided for in, or of interest apart from, the apparatus of groups F02M61/02 - F02M61/14
    • F02M61/20—Closing valves mechanically, e.g. arrangements of springs or weights or permanent magnets; Damping of valve lift
    • F02M61/205—Means specially adapted for varying the spring tension or assisting the spring force to close the injection-valve, e.g. with damping of valve lift
    • 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
    • F02M63/0003—Fuel-injection apparatus having a cyclically-operated valve for connecting a pressure source, e.g. constant pressure pump or accumulator, to an injection valve held closed mechanically, e.g. by springs, and automatically opened by fuel pressure
    • F02M63/0007—Fuel-injection apparatus having a cyclically-operated valve for connecting a pressure source, e.g. constant pressure pump or accumulator, to an injection valve held closed mechanically, e.g. by springs, and automatically opened by fuel pressure using electrically actuated 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
    • F02M63/004—Sliding valves, e.g. spool valves, i.e. whereby the closing member has a sliding movement along a seat for opening and closing
    • 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
    • F02M63/0054—Check 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
    • F02M2200/00—Details of fuel-injection apparatus, not otherwise provided for
    • F02M2200/31—Fuel-injection apparatus having hydraulic pressure fluctuations damping elements
    • F02M2200/315—Fuel-injection apparatus having hydraulic pressure fluctuations damping elements for damping fuel pressure fluctuations
    • 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
    • F02M63/02—Fuel-injection apparatus having several injectors fed by a common pumping element, or having several pumping elements feeding a common injector; Fuel-injection apparatus having provisions for cutting-out pumps, pumping elements, or injectors; Fuel-injection apparatus having provisions for variably interconnecting pumping elements and injectors alternatively
    • F02M63/0225—Fuel-injection apparatus having a common rail feeding several injectors ; Means for varying pressure in common rails; Pumps feeding common rails

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Fuel-Injection Apparatus (AREA)

Abstract

Die Erfindung betrifft ein Kraftstoffeinspritzsystem für eine Brennkraftmaschine, insbesondere für einen Dieselmotor, mit wenigstens einem Arbeitszylinder und wenigstens einem Injektor pro Arbeitszylinder zum Einspritzen von Kraftstoff in jeweils einen Arbeitszylinder, wobei der Injektor ein Mengenventil (20) und eine mit dem Mengenventil (20) über eine erste Kraftstoffleitung (40) verbundene Einspritzdüse (24) aufweist. Hierbei ist zusätzlich ein Standdruckeinstellventil (22) vorgesehen, welches einerseits mit der ersten Kraftstoffleitung (40) und andererseits mit einem Kraftstoffrücklauf (36) verbunden ist, wobei das Standdruckeinstellventil (22) derart ausgebildet ist, dass dieses unterhalb eines ersten Schaltdruckes in der ersten Kraftstoffleitung (40), welcher kleiner ist als ein Öffnungsdruck der Einspritzdüse (24), in einer ersten Arbeitsstellung den Kraftstoffrücklauf (36) von der Leitung (40) abtrennt, bei dem ersten Schaltdruck und oberhalb des ersten Schaltdruckes sowie unterhalb eines zweiten Schaltdruckes, welcher größer als der erste Schaltdruck und kleiner als der Öffnungsdruck der Einspritzdüse (24) ist, den Kraftstoffrücklauf (36) mit der ersten Kraftstoffleitung (40) in einer zweiten Arbeitsstellung fluidleitend verbindet, sowie bei und oberhalb des zweiten Schaltdruckes in einer dritten Arbeitsstellung den Kraftstoffrücklauf (36) von der ersten Kraftstoffleitung (40) abtrennt.
EP09001412.7A 2008-03-27 2009-02-02 Kraftstoffeinspritzsystem für eine Brennkraftmaschine Not-in-force EP2105604B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE200810015857 DE102008015857A1 (de) 2008-03-27 2008-03-27 Kraftstoffeinspritzsystem für eine Brennkraftmaschine

Publications (3)

Publication Number Publication Date
EP2105604A2 EP2105604A2 (de) 2009-09-30
EP2105604A3 true EP2105604A3 (de) 2010-11-17
EP2105604B1 EP2105604B1 (de) 2013-04-10

Family

ID=40810086

Family Applications (1)

Application Number Title Priority Date Filing Date
EP09001412.7A Not-in-force EP2105604B1 (de) 2008-03-27 2009-02-02 Kraftstoffeinspritzsystem für eine Brennkraftmaschine

Country Status (2)

Country Link
EP (1) EP2105604B1 (de)
DE (1) DE102008015857A1 (de)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102014210779A1 (de) 2014-06-05 2015-12-17 Volkswagen Aktiengesellschaft Kraftstoffeinspritzvorrichtung

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19930276A1 (de) * 1998-07-02 2000-01-27 Avl List Gmbh Speichereinspritzeinrichtung
EP0994251A1 (de) * 1998-10-17 2000-04-19 Lucas Industries Limited Kraftstoffeinspritzvorrichtung
DE10046662A1 (de) * 2000-09-20 2002-04-04 Bosch Gmbh Robert Ventil zum Steuern von Flüssigkeiten mit einer zentralen Leckageableitung

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3009750C2 (de) * 1980-03-14 1987-01-02 M.A.N.- B & W Diesel GmbH, 8900 Augsburg Brennstoffeinspritzvorrichtung für Brennkraftmaschinen
DE10033428C2 (de) * 2000-07-10 2002-07-11 Bosch Gmbh Robert Druckgesteuerter Injektor zum Einspritzen von Kraftstoff
DE10330132A1 (de) * 2003-07-04 2005-01-20 Robert Bosch Gmbh Druckhalteventil, Werkzeug, Set und Kraftstoffeinspritzsystem

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19930276A1 (de) * 1998-07-02 2000-01-27 Avl List Gmbh Speichereinspritzeinrichtung
EP0994251A1 (de) * 1998-10-17 2000-04-19 Lucas Industries Limited Kraftstoffeinspritzvorrichtung
DE10046662A1 (de) * 2000-09-20 2002-04-04 Bosch Gmbh Robert Ventil zum Steuern von Flüssigkeiten mit einer zentralen Leckageableitung

Also Published As

Publication number Publication date
DE102008015857A1 (de) 2009-10-01
EP2105604B1 (de) 2013-04-10
EP2105604A2 (de) 2009-09-30

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