EP1377746B1 - Kraftstoffeinspritzventil und verfahren zum einspritzen von kraftstoff - Google Patents

Kraftstoffeinspritzventil und verfahren zum einspritzen von kraftstoff Download PDF

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Publication number
EP1377746B1
EP1377746B1 EP02712990A EP02712990A EP1377746B1 EP 1377746 B1 EP1377746 B1 EP 1377746B1 EP 02712990 A EP02712990 A EP 02712990A EP 02712990 A EP02712990 A EP 02712990A EP 1377746 B1 EP1377746 B1 EP 1377746B1
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EP
European Patent Office
Prior art keywords
fuel
pressure
chamber
valve
sensing chamber
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.)
Expired - Lifetime
Application number
EP02712990A
Other languages
English (en)
French (fr)
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EP1377746A1 (de
Inventor
Daniel Paro
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.)
Wartsila Finland Oy
Original Assignee
Wartsila Finland Oy
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Filing date
Publication date
Application filed by Wartsila Finland Oy filed Critical Wartsila Finland Oy
Publication of EP1377746A1 publication Critical patent/EP1377746A1/de
Application granted granted Critical
Publication of EP1377746B1 publication Critical patent/EP1377746B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • 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
    • 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
    • F02M65/00—Testing fuel-injection apparatus, e.g. testing injection timing ; Cleaning of fuel-injection apparatus
    • F02M65/003—Measuring variation of fuel pressure in high pressure line
    • 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
    • F02M2200/24—Fuel-injection apparatus with sensors

Claims (10)

  1. Kraftstoffeinspritzventil, das eine Nadelventilbaugruppe (2) aufweist, die in einem Ventilkörper (1) angeordnet ist, wobei ein Nadelventil (2') zur Steuerung der Kraftstoffeinspritzung in einen Zylinder (11) eines Motors aus einer Kraftstoftkammer (5) dient, die im Ventilkörper (1) angeordnet ist, dadurch gekennzeichnet, dass das Einspritzventil eine Druckerfassungskammer (6) aufweist, die mit der Kraftstoffkammer (5) in Verbindung stehend angeordnet ist, und dass ein druckmessendes Mittel (7) mit der Druckerfassungskammer (6) in Verbindung stehend angeordnet ist.
  2. Kraftstoffeinspritzventil nach Anspruch 1, dadurch gekennzeichnet, dass die Druckerfassungskammer (6) mit einer Kraftstoffrückführungsleitung (8) verbunden ist, um abgegebenen Kraftstoff vom Einspritzventil wegzuführen.
  3. Kraftstoffeinspritzventil nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass die Druckerfassungskammer (6) mit der Kraftstoffkammer (5) über ein erstes druckreduzierendes Mittel (9) in Verbindung stehend angeordnet ist.
  4. Kraftstoffeinspritzventil nach Anspruch 3, dadurch gekennzeichnet, dass ein Rückschlagventil (10) zwischen der Druckerfassungskammer (6) und dem ersten druckreduzierenden Mittel (9) angebracht ist.
  5. Kraftstoffeinspritzventil nach Anspruch 2, dadurch gekennzeichnet, dass das zweite druckreduzierende Mittel (9') zwischen der Druckerfassungskammer (6) und der Rückführungsleitung (8) angebracht ist.
  6. Kraftstoffeinspritzventil nach Anspruch 5, dadurch gekennzeichnet, dass ein zweites Rückschlagventil (10') zwischen dem zweiten druckreduzierenden Mittel (9') und der Kraftstoffrückführungsleitung angebracht ist.
  7. Kraftstoffeinspritzventil nach Anspruch 3 oder 5, dadurch gekennzeichnet, dass die druckreduzierenden Mittel (9, 9') eine Bohrung, eine Düse oder einen Flansch geeigneter Größe aufweisen.
  8. Verfahren zur Kraftstoffeinspritzung, wobei Kraftstoff unter einem erhöhten Druck, der durch eine Ventilnadel (2'), die in einem Ventilkörper (1) angeordnet ist, gesteuert wird, aus einer Kraftstoffkammer (5) zu einem Zylinder (11) eines Motors geführt wird, dadurch gekennzeichnet, dass Kraftstoff von der Kraftstoffkammer (5) unter einem erhöhten Druck über ein druckreduzierendes Mittel (9), das im Ventilkörper angeordnet ist, zu einer Druckerfassungskammer (6) geführt wird, in der ein druckmessendes Mittel (7) zur Überwachung des Betriebs des Einspritzventils angeordnet ist.
  9. Verfahren nach Anspruch 8, dadurch gekennzeichnet, dass der Kraftstoffdruck auf mindestens ein Zehntel des Drucks herabgesetzt wird, der in der Kraftstoffkammer (5) herrscht, wenn der Kraftstoff über das druckreduzierende Mittel (9) zu der Druckerfassungskammer (6) geführt wird.
  10. Verfahren nach Anspruch 8, dadurch gekennzeichnet, dass der Kraftstoff von der Druckerfassungskammer (6) zu einer Kraftstoffrückführungsleitung (8) geführt wir
EP02712990A 2001-04-10 2002-04-04 Kraftstoffeinspritzventil und verfahren zum einspritzen von kraftstoff Expired - Lifetime EP1377746B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FI20010742 2001-04-10
FI20010742A FI113684B (fi) 2001-04-10 2001-04-10 Polttoaineen ruiskutusventtiili ja menetelmä polttoaineen ruiskutuksessa
PCT/FI2002/000289 WO2002084108A1 (en) 2001-04-10 2002-04-04 Fuel injector and method of injecting fuel

Publications (2)

Publication Number Publication Date
EP1377746A1 EP1377746A1 (de) 2004-01-07
EP1377746B1 true EP1377746B1 (de) 2006-12-20

Family

ID=8560956

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02712990A Expired - Lifetime EP1377746B1 (de) 2001-04-10 2002-04-04 Kraftstoffeinspritzventil und verfahren zum einspritzen von kraftstoff

Country Status (6)

Country Link
EP (1) EP1377746B1 (de)
AT (1) ATE348952T1 (de)
DE (1) DE60216903T2 (de)
DK (1) DK1377746T3 (de)
FI (1) FI113684B (de)
WO (1) WO2002084108A1 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101545433B (zh) * 2008-03-28 2011-11-09 株式会社电装 具有内装式燃料压力传感器的燃料喷射器

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1805410A4 (de) * 2004-09-24 2010-04-28 Advanced Engine Components Ltd Gaseinspritzventil

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5133645A (en) * 1990-07-16 1992-07-28 Diesel Technology Corporation Common rail fuel injection system
US5647536A (en) * 1995-01-23 1997-07-15 Cummins Engine Company, Inc. Injection rate shaping nozzle assembly for a fuel injector
US5860597A (en) * 1997-03-24 1999-01-19 Cummins Engine Company, Inc. Injection rate shaping nozzle assembly for a fuel injector
FI107831B (fi) * 1998-05-20 2001-10-15 Waertsilae Tech Oy Ab Polttoaineensyöttöjärjestelmä

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101545433B (zh) * 2008-03-28 2011-11-09 株式会社电装 具有内装式燃料压力传感器的燃料喷射器

Also Published As

Publication number Publication date
FI20010742A (fi) 2002-10-11
EP1377746A1 (de) 2004-01-07
DK1377746T3 (da) 2007-03-12
FI20010742A0 (fi) 2001-04-10
DE60216903D1 (de) 2007-02-01
FI113684B (fi) 2004-05-31
ATE348952T1 (de) 2007-01-15
DE60216903T2 (de) 2007-10-18
WO2002084108A1 (en) 2002-10-24

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