AT2961U2 - STORAGE INJECTION DEVICE - Google Patents

STORAGE INJECTION DEVICE Download PDF

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Publication number
AT2961U2
AT2961U2 AT45098U AT45098U AT2961U2 AT 2961 U2 AT2961 U2 AT 2961U2 AT 45098 U AT45098 U AT 45098U AT 45098 U AT45098 U AT 45098U AT 2961 U2 AT2961 U2 AT 2961U2
Authority
AT
Austria
Prior art keywords
injection
control valve
injection device
injector
pressure
Prior art date
Application number
AT45098U
Other languages
German (de)
Other versions
AT2961U3 (en
Inventor
Otfried Dipl Ing Derschmidt
Ludwig Dipl Ing Buergler
Original Assignee
Avl List 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 Avl List Gmbh filed Critical Avl List Gmbh
Priority to AT0045098U priority Critical patent/AT2961U3/en
Priority to DE1999130276 priority patent/DE19930276A1/en
Publication of AT2961U2 publication Critical patent/AT2961U2/en
Publication of AT2961U3 publication Critical patent/AT2961U3/en

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
    • F02M63/02—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
    • 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

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

Bei einer Speichereinspritzeinrichtung mit zumindest einem direkt in einen Brennraum (2) einer Brennkraftmaschine mündenden Einspritzinjektor (3) pro Zylinder, welcher über eine Einspritzleitung (1) mit einer Kraftstoffverteilerleiste (CR) verbunden ist, ist zur Realisierung eines zweiten Druckniveaus vorgesehen, daß in jeder Einspritzleitung (1) ein von einem Steuergerät (S`2) mit Steuersignalen beaufschlagbares Schaltventil (4) und zwischen dem Schaltventil (4) und dem Einspritzinjektor (3) ein Druckhalteventil (5) angeordnet ist, welches bei geschlossenem Schaltventil (4) einen am Einspritzinjektor (3) anliegenden Restdruck hält.In the case of a storage injection device with at least one injection injector (3) per cylinder opening directly into a combustion chamber (2) of an internal combustion engine, which is connected to a fuel rail (CR) via an injection line (1), a second pressure level is provided for in each of them Injection line (1) a control valve (S`2) to which control signals can be applied and control valve (4) and between the control valve (4) and the injection injector (3) a pressure control valve (5) is arranged, which is closed when the control valve (4) Injection injector (3) holds the remaining pressure.

Claims (4)

AT 002 961U2 ANSPRÜCHE 1. Speichereinspritzeinrichtung mit zumindest einem direkt in einen Brennraum (2) einer Brennkraftmaschine mündenden Einspritzinjektor (3) pro Zylinder, welcher über eine Einspritzleitung (1) mit einer KraftstoffVerteilerleiste (CR) verbunden ist, dadurch gekennzeichnet. daß in jeder Einspritzleitung (1) ein von einem Steuergerät (S2) mit Steuersignalen beaufschlagbares Schaltventil (4) und zwischen dem Schaltventil (4) und dem Einspritzinjektor (3) ein Druckhalteventil (5) angeordnet ist, welches bei geschlossenem Schaltventil (4) einen am Einspritzinjektor (3) anliegenden Restdruck hält.AT 002 961U2 CLAIMS 1. Accumulator injection device with at least one injector (3) per cylinder opening directly into a combustion chamber (2) of an internal combustion engine, which is connected to a fuel rail (CR) via an injection line (1). that in each injection line (1) a control valve (S2) can be acted upon with control signals and a switching valve (4) between the switching valve (4) and the injection injector (3) is arranged a pressure control valve (5) which, when the switching valve (4) is closed residual pressure present at the injection injector (3). 2. Speichereinspritzeinrichtung nach Anspruch 1, dadurch gekennzeichnet, daß dem Druckhalteventil (5) eine Drossel (6) vorgeschaltet ist.2. Accumulator injection device according to claim 1, characterized in that the pressure holding valve (5) is connected upstream of a throttle (6). 3. Speichereinspritzeinrichtung nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß das Schaltventil (4) zur Verringerung des Totvolumens in der Einspritzleitung (1) nahe am Einspritzinjektor (3) angeordnet ist.3. Accumulator injection device according to claim 1 or 2, characterized in that the switching valve (4) for reducing the dead volume in the injection line (1) is arranged close to the injection injector (3). 4. Speichereinspritzeinrichtung nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß das Druckhalteventil (5) zur Aufrechterhaltung eines Restdruckes im Bereich von 250 bis 600 bar, vorzugsweise im Bereich von 300 bis 400 bar, ausgebildet ist. 54. Accumulator injection device according to one of claims 1 to 3, characterized in that the pressure holding valve (5) is designed to maintain a residual pressure in the range from 250 to 600 bar, preferably in the range from 300 to 400 bar. 5
AT0045098U 1998-07-02 1998-07-02 STORAGE INJECTION DEVICE AT2961U3 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
AT0045098U AT2961U3 (en) 1998-07-02 1998-07-02 STORAGE INJECTION DEVICE
DE1999130276 DE19930276A1 (en) 1998-07-02 1999-07-01 Storage injection arrangement for combustion engine, having pressure hold valve arranged between switching valve and injection device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AT0045098U AT2961U3 (en) 1998-07-02 1998-07-02 STORAGE INJECTION DEVICE

Publications (2)

Publication Number Publication Date
AT2961U2 true AT2961U2 (en) 1999-07-26
AT2961U3 AT2961U3 (en) 1999-11-25

Family

ID=3490946

Family Applications (1)

Application Number Title Priority Date Filing Date
AT0045098U AT2961U3 (en) 1998-07-02 1998-07-02 STORAGE INJECTION DEVICE

Country Status (2)

Country Link
AT (1) AT2961U3 (en)
DE (1) DE19930276A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001012982A1 (en) * 1999-08-16 2001-02-22 Robert Bosch Gmbh Fuel injection device
WO2001014712A1 (en) * 1999-08-20 2001-03-01 Robert Bosch Gmbh Fuel injection device

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1199467B1 (en) 2000-10-16 2004-12-15 Woodward Governor Company Fuel injection system
DE10054526A1 (en) * 2000-11-03 2002-05-16 Bosch Gmbh Robert injection
DE10117401C2 (en) * 2001-04-06 2003-02-27 Mtu Friedrichshafen Gmbh Fuel injection system for an internal combustion engine
DE10147830B4 (en) * 2001-09-27 2008-05-08 L'orange Gmbh fuel injector
DE102008015857A1 (en) * 2008-03-27 2009-10-01 Volkswagen Ag Fuel injection system for an internal combustion engine

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3411539A1 (en) * 1984-03-29 1985-10-10 Robert Bosch Gmbh, 7000 Stuttgart Fuel injection device
DE4341739C1 (en) * 1993-12-08 1995-03-30 Mtu Friedrichshafen Gmbh Injection system

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001012982A1 (en) * 1999-08-16 2001-02-22 Robert Bosch Gmbh Fuel injection device
DE19938169A1 (en) * 1999-08-16 2001-03-01 Bosch Gmbh Robert Fuel injector
US6532938B1 (en) * 1999-08-16 2003-03-18 Robert Bosch Gmbh Fuel injection system
WO2001014712A1 (en) * 1999-08-20 2001-03-01 Robert Bosch Gmbh Fuel injection device
US6725840B1 (en) 1999-08-20 2004-04-27 Robert Bosch Gmbh Fuel injection device

Also Published As

Publication number Publication date
AT2961U3 (en) 1999-11-25
DE19930276A1 (en) 2000-01-27

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