EP1318293A3 - Kraftstoffeinspritzeinrichtung für eine Brennkraftmaschine - Google Patents

Kraftstoffeinspritzeinrichtung für eine Brennkraftmaschine Download PDF

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Publication number
EP1318293A3
EP1318293A3 EP02023348A EP02023348A EP1318293A3 EP 1318293 A3 EP1318293 A3 EP 1318293A3 EP 02023348 A EP02023348 A EP 02023348A EP 02023348 A EP02023348 A EP 02023348A EP 1318293 A3 EP1318293 A3 EP 1318293A3
Authority
EP
European Patent Office
Prior art keywords
pump
pressure
fuel injection
chamber
injection 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
EP02023348A
Other languages
English (en)
French (fr)
Other versions
EP1318293A2 (de
EP1318293B1 (de
Inventor
Friedrich Boecking
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 EP1318293A2 publication Critical patent/EP1318293A2/de
Publication of EP1318293A3 publication Critical patent/EP1318293A3/de
Application granted granted Critical
Publication of EP1318293B1 publication Critical patent/EP1318293B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • 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
    • 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
    • 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
    • F02M45/06—Pumps peculiar thereto
    • 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
    • F02M57/00—Fuel-injectors combined or associated with other devices
    • F02M57/02—Injectors structurally combined with fuel-injection pumps
    • 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
    • F02M59/00—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps
    • F02M59/20—Varying fuel delivery in quantity or timing
    • F02M59/36—Varying fuel delivery in quantity or timing by variably-timed valves controlling fuel passages to pumping elements or overflow passages
    • F02M59/366—Valves being actuated electrically
    • 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

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 Kraftstoffeinspritzeinrichtung weist für jeden Zylinder der Brennkraftmaschine eine Kraftstoffhochdruckpumpe (10) und ein mit dieser verbundenes Kraftstoffeinspritzventil (12) auf. Ein erster Pumpenkolben (18) der Kraftstoffhochdruckpumpe (10) begrenzt einen Pumpenarbeitsraum (22), der mit einem Druckraum (40) des Kraftstoffeinspritzventils (12) verbunden ist, das ein Einspritzventilglied (28) aufweist, durch das Einspritzöffnungen (32) gesteuert werden und von dem im Druckraum (40) herrschenden Druck gegen eine Schließkraft in einer Öffnungsrichtung (29) bewegbar ist. Die Kraftstoffhochdruckpumpe (10) weist einen zweiten Pumpenkolben (60) auf, der einen Arbeitsraum (66) begrenzt und an dem nach einem Anfangsförderhub (a) der erste Pumpenkolben (18) zur Anlage kommt, so daß der zweite Pumpenkolben (60) ebenfalls einen Förderhub ausführt. Durch ein erstes Steuerventil (78) wird eine Verbindung (66) des Pumpenarbeitsraums (22) mit einem Entlastungsraum (24) gesteuert und durch ein zweites Steuerventil (82) wird eine Verbindung (80) eines mit dem Arbeitsraum (66) verbundenen, durch einen zumindest mittelbar in Schließrichtung auf das Einspritzventilglied (28) wirkenden Steuerkolben (50) begrenzten Steuerdruckraums (52) mit einem Entlastungsraum (24) gesteuert.
EP02023348A 2001-12-07 2002-10-18 Kraftstoffeinspritzeinrichtung für eine Brennkraftmaschine Expired - Lifetime EP1318293B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10160258A DE10160258A1 (de) 2001-12-07 2001-12-07 Kraftstoffeinspritzeinrichtung für eine Brennkraftmaschine
DE10160258 2001-12-07

Publications (3)

Publication Number Publication Date
EP1318293A2 EP1318293A2 (de) 2003-06-11
EP1318293A3 true EP1318293A3 (de) 2006-03-22
EP1318293B1 EP1318293B1 (de) 2007-08-29

Family

ID=7708447

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02023348A Expired - Lifetime EP1318293B1 (de) 2001-12-07 2002-10-18 Kraftstoffeinspritzeinrichtung für eine Brennkraftmaschine

Country Status (3)

Country Link
US (1) US6688541B2 (de)
EP (1) EP1318293B1 (de)
DE (2) DE10160258A1 (de)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10233101A1 (de) * 2002-07-20 2004-01-29 Robert Bosch Gmbh Kraftstoffeinspritzeinrichtung für eine Brennkraftmaschine
US20070007363A1 (en) * 2005-07-04 2007-01-11 Hitachi, Ltd. Fuel injection valve
DE102006026644A1 (de) * 2006-06-08 2007-12-13 Robert Bosch Gmbh Piezoelektrischer Aktor
FI122557B (fi) * 2009-04-02 2012-03-30 Waertsilae Finland Oy Mäntämoottorin polttoaineenruiskutusjärjestely
FI124743B (fi) * 2012-10-18 2015-01-15 Wärtsilä Finland Oy Polttoaineen ruiskutusjärjestely

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0818623A1 (de) * 1996-07-13 1998-01-14 Lucas Industries Public Limited Company Einspritzventil
EP0987431A2 (de) * 1998-09-18 2000-03-22 Lucas Industries Limited Kraftstoffeinspritzventil
DE19940294A1 (de) * 1999-08-25 2001-03-01 Bosch Gmbh Robert Kraftstoffeinspritzventil

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4004610A1 (de) * 1989-04-21 1990-10-25 Bosch Gmbh Robert Kraftstoffeinspritzanlage, insbesondere pumpeduese, fuer brennkraftmaschinen
DE29712502U1 (de) * 1997-07-15 1997-09-18 FEV Motorentechnik GmbH & Co. KG, 52078 Aachen Elektromagnetischer Aktuator mit Gehäuse
GB9812901D0 (en) * 1998-06-15 1998-08-12 Lucas Ind Plc Fuel injector
DE10042309B4 (de) * 2000-08-29 2005-04-21 Robert Bosch Gmbh Zumessventil
DE10055269B4 (de) * 2000-11-08 2005-10-27 Robert Bosch Gmbh Druckgesteuerter Injektor mit Druckübersetzung
DE10154802A1 (de) * 2001-11-08 2003-05-22 Bosch Gmbh Robert Kraftstoffeinspritzeinrichtung für eine Brennkraftmaschine
DE10155406A1 (de) * 2001-11-10 2003-05-22 Bosch Gmbh Robert Kraftstoffeinspritzeinrichtung für eine Brennkraftmaschine

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0818623A1 (de) * 1996-07-13 1998-01-14 Lucas Industries Public Limited Company Einspritzventil
EP0987431A2 (de) * 1998-09-18 2000-03-22 Lucas Industries Limited Kraftstoffeinspritzventil
DE19940294A1 (de) * 1999-08-25 2001-03-01 Bosch Gmbh Robert Kraftstoffeinspritzventil

Also Published As

Publication number Publication date
EP1318293A2 (de) 2003-06-11
US20030106948A1 (en) 2003-06-12
EP1318293B1 (de) 2007-08-29
DE10160258A1 (de) 2003-06-18
US6688541B2 (en) 2004-02-10
DE50210802D1 (de) 2007-10-11

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