EP1154152A3 - Kraftstoffeinspritzventil für Brennkraftmaschinen - Google Patents

Kraftstoffeinspritzventil für Brennkraftmaschinen Download PDF

Info

Publication number
EP1154152A3
EP1154152A3 EP01109235A EP01109235A EP1154152A3 EP 1154152 A3 EP1154152 A3 EP 1154152A3 EP 01109235 A EP01109235 A EP 01109235A EP 01109235 A EP01109235 A EP 01109235A EP 1154152 A3 EP1154152 A3 EP 1154152A3
Authority
EP
European Patent Office
Prior art keywords
valve
valve member
combustion chamber
closing force
fuel injection
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.)
Withdrawn
Application number
EP01109235A
Other languages
English (en)
French (fr)
Other versions
EP1154152A2 (de
Inventor
Giovanni Ferraro
Hansjörg EGELER
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 EP1154152A2 publication Critical patent/EP1154152A2/de
Publication of EP1154152A3 publication Critical patent/EP1154152A3/de
Withdrawn legal-status Critical Current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
    • 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
    • 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
    • F02M45/08—Injectors peculiar thereto
    • F02M45/083—Having two or more closing springs acting on injection-valve

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

Kraftstoffeinspritzventil mit einem Ventilkörper (1), in dem in einer Bohrung (12) ein kolbenförmiges Ventilglied (10) entgegen einer Schließkraft längsverschiebbar angeordnet ist. Am brennraumseitigen Ende des Ventilglieds (10) ist eine Ventildichtfläche (15) ausgebildet, die mit einem Ventilsitz (17) zur Steuerung wenigstens einer Einspritzöffnung (19) zusammenwirkt. Das Ventilglied (10) ist in einem brennraumabgewandten Abschnitt in der Bohrung (12) geführt und verjüngt sich zum Brennraum hin unter Bildung einer Druckschulter (11), die mit Kraftstoff beaufschlagt ist. Die Längsbewegung des Ventilglieds (10) wird durch die hydraulische Kraft auf die Druckschulter (11) gesteuert, welche hydraulische Kraft entgegen der Schließkraft gerichtet ist. Die Schließkraft wird durch wenigstens einen Faltenbalg (35; 37) erzeugt, der in einem im Ventilhaltekörper (7) ausgebildeten Federraum (45) unter Vorspannung angeordnet ist. Der Faltenbalg (35; 37) weist dabei keinen Verschleiß auf, so daß der Öffnungsdruck des Kraftstoffeinspritzventils während des gesamten Betriebs konstant bleibt (Figur 1).
EP01109235A 2000-05-12 2001-04-14 Kraftstoffeinspritzventil für Brennkraftmaschinen Withdrawn EP1154152A3 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE2000123322 DE10023322A1 (de) 2000-05-12 2000-05-12 Kraftstoffeinspritzventil für Brenkraftmaschinen
DE10023322 2000-05-12

Publications (2)

Publication Number Publication Date
EP1154152A2 EP1154152A2 (de) 2001-11-14
EP1154152A3 true EP1154152A3 (de) 2004-12-08

Family

ID=7641812

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01109235A Withdrawn EP1154152A3 (de) 2000-05-12 2001-04-14 Kraftstoffeinspritzventil für Brennkraftmaschinen

Country Status (2)

Country Link
EP (1) EP1154152A3 (de)
DE (1) DE10023322A1 (de)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19954537A1 (de) * 1999-11-12 2001-05-17 Bosch Gmbh Robert Brennstoffeinspritzventil
DE102006009070A1 (de) * 2006-02-28 2007-08-30 Robert Bosch Gmbh Brennstoffeinspritzventil

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB293171A (en) * 1927-05-26 1928-07-05 Torkild Valdemar Hemmingsen Fuel valve for internal combustion engines
GB404067A (en) * 1932-08-16 1934-01-11 Bryce Ltd Improvements in injector nozzles for internal combustion engines
FR1273461A (fr) * 1960-09-01 1961-10-13 Perfectionnement aux injecteurs apériodiques pour moteurs à combustion interne et autres
FR2168712A5 (de) * 1972-01-21 1973-08-31 Breting Olivier
DE4110531A1 (de) * 1991-03-30 1992-10-01 Erich Brosa Einspritzduese fuer kraftstoffe und andere medien
WO2000008333A1 (de) * 1998-08-07 2000-02-17 Robert Bosch Gmbh Brennstoffeinspritzventil

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4440182C2 (de) 1994-11-10 2003-09-18 Bosch Gmbh Robert Kraftstoffeinspritzventil für Brennkraftmaschinen

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB293171A (en) * 1927-05-26 1928-07-05 Torkild Valdemar Hemmingsen Fuel valve for internal combustion engines
GB404067A (en) * 1932-08-16 1934-01-11 Bryce Ltd Improvements in injector nozzles for internal combustion engines
FR1273461A (fr) * 1960-09-01 1961-10-13 Perfectionnement aux injecteurs apériodiques pour moteurs à combustion interne et autres
FR2168712A5 (de) * 1972-01-21 1973-08-31 Breting Olivier
DE4110531A1 (de) * 1991-03-30 1992-10-01 Erich Brosa Einspritzduese fuer kraftstoffe und andere medien
WO2000008333A1 (de) * 1998-08-07 2000-02-17 Robert Bosch Gmbh Brennstoffeinspritzventil

Also Published As

Publication number Publication date
EP1154152A2 (de) 2001-11-14
DE10023322A1 (de) 2001-11-15

Similar Documents

Publication Publication Date Title
DE19702066C2 (de) Piezoelektrischer Injektor für Kraftstoffeinspritzanlagen von Brennkraftmaschinen
US7051958B2 (en) Fuel injection valve for internal combustion engines
DE69708396T2 (de) Piezoelektrisch gesteuertes Einspritzventil mit hydraulischer Vergrösserung des Hubs
EP1733139B1 (de) Common-rail-injektor
EP0937891A3 (de) Kraftstoffeinspritzventil
EP1637806A3 (de) Druckmessglühkerze für einen Dieselmotor
EP1041272A3 (de) Brennstoffeinspritzventil
EP1118765A3 (de) Brennstoffeinspritzventil für Verbrennungskraftmaschinen
EP1181445B1 (de) Kraftstoffeinspritzventil für brennkraftmaschinen
JP2965042B2 (ja) ディーゼル機関用電磁燃料噴射装置
EP0952333A3 (de) Einspritzventil für Kraftstoffeinspritzsysteme
EP0976924A3 (de) Servoventil für ein Einspritzventil und Einspritzventil
EP0864743A3 (de) Kraftstoffeinspritzventil für Brennkraftmaschinen
DE50008830D1 (de) Ventil zum steuern von flüssigkeiten
DE102006055486A1 (de) Kraftstoffeinspritzventil für Brennkraftmaschinen
US20060202052A1 (en) Fuel injection valve comprising two coaxial valve needles
EP1088985A3 (de) Injektor für eine Brennkraftmaschine mit Direkteinspritzung
US5826793A (en) Two rate fuel injector
EP1195515A3 (de) Brennstoffeinspritzventil
EP0872636A3 (de) Kraftstoffeinspritzventil für Brennkraftmaschinen
EP1154152A3 (de) Kraftstoffeinspritzventil für Brennkraftmaschinen
WO2001051805A3 (de) Einspritzdüse
EP2148080A1 (de) Kraftstoffeinspritzventileinrichtung
DE10139622A1 (de) Einspritzventil
EP1624181B1 (de) Common-Rail-Injektor

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR

AX Request for extension of the european patent

Free format text: AL;LT;LV;MK;RO;SI

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR

AX Request for extension of the european patent

Extension state: AL LT LV MK RO SI

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 20041103