EP1312792A3 - Kraftstoffspritzeinrichtung für eine Brennkraftmaschine - Google Patents

Kraftstoffspritzeinrichtung für eine Brennkraftmaschine Download PDF

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Publication number
EP1312792A3
EP1312792A3 EP02022358A EP02022358A EP1312792A3 EP 1312792 A3 EP1312792 A3 EP 1312792A3 EP 02022358 A EP02022358 A EP 02022358A EP 02022358 A EP02022358 A EP 02022358A EP 1312792 A3 EP1312792 A3 EP 1312792A3
Authority
EP
European Patent Office
Prior art keywords
pressure
combustion engine
internal combustion
fuel injection
pump
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
EP02022358A
Other languages
English (en)
French (fr)
Other versions
EP1312792B1 (de
EP1312792A2 (de
Inventor
Peter Grabandt
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 EP1312792A2 publication Critical patent/EP1312792A2/de
Publication of EP1312792A3 publication Critical patent/EP1312792A3/de
Application granted granted Critical
Publication of EP1312792B1 publication Critical patent/EP1312792B1/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
    • F02M47/00—Fuel-injection apparatus operated cyclically with fuel-injection valves actuated by fluid pressure
    • F02M47/02—Fuel-injection apparatus operated cyclically with fuel-injection valves actuated by fluid pressure of accumulator-injector type, i.e. having fuel pressure of accumulator tending to open, and fuel pressure in other chamber tending to close, injection valves and having means for periodically releasing that closing pressure
    • F02M47/027—Electrically actuated valves draining the chamber to release the closing pressure
    • 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
    • F02M47/00—Fuel-injection apparatus operated cyclically with fuel-injection valves actuated by fluid pressure
    • F02M47/02—Fuel-injection apparatus operated cyclically with fuel-injection valves actuated by fluid pressure of accumulator-injector type, i.e. having fuel pressure of accumulator tending to open, and fuel pressure in other chamber tending to close, injection valves and having means for periodically releasing that closing pressure
    • 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
    • F02M55/00—Fuel-injection apparatus characterised by their fuel conduits or their venting means; Arrangements of conduits between fuel tank and pump F02M37/00
    • F02M55/04—Means for damping vibrations or pressure fluctuations in injection pump inlets or outlets
    • 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
    • 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
    • F02M59/44—Details, components parts, or accessories not provided for in, or of interest apart from, the apparatus of groups F02M59/02 - F02M59/42; Pumps having transducers, e.g. to measure displacement of pump rack or piston
    • 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
    • F02M2200/00—Details of fuel-injection apparatus, not otherwise provided for
    • F02M2200/40—Fuel-injection apparatus with fuel accumulators, e.g. a fuel injector having an integrated fuel accumulator

Abstract

Die Kraftstoffeinspritzeinrichtung weist eine Kraftstoffhochdruckpumpe (10) und ein mit dieser verbundenes Kraftstoffeinspritzventil (12) für jeden Zylinder der Brennkraftmaschine auf. Die Kraftstoffhochdruckpumpe (10) weist einen durch die Brennkraftmaschine in einer Hubbewegung angetriebenen Pumpenkolben (18) auf, der einen Pumpenarbeitsraum (22) begrenzt, welcher über eine Leitung (14) mit einem Druckraum (40) des getrennt von der Kraftstoffhochdruckpumpe (10) an der Brennkraftmaschine angeordneten Kraftstoffeinspritzventils (12) verbunden ist, das ein Einspritzventilglied (28) aufweist, durch das wenigstens eine Einspritzöffnung (32) gesteuert wird und das durch den im Druckraum (40) herrschenden Druck beaufschlagt gegen eine Schließkraft in Öffnungsrichtung (29) zur Freigabe der wenigstens einen Einspritzöffnung (32) bewegbar ist. Am Kraftstoffeinspritzventil (12) ist ein elektrisch betätigtes Steuerventil (58) vorgesehen, durch das zumindest mittelbar eine Verbindung (54) des Pumpenarbeitsraums (22) mit einem Speicherraum (56) gesteuert wird, in dem bei geöffnetem Steuerventil (58) durch dieses abgesteuerter Kraftstoff unter Druck speicherbar ist.
EP02022358A 2001-11-14 2002-10-08 Kraftstoffspritzeinrichtung für eine Brennkraftmaschine Expired - Lifetime EP1312792B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10155973A DE10155973A1 (de) 2001-11-14 2001-11-14 Kraftstoffeinspritzeinrichtung für eine Brennkraftmaschine
DE10155973 2001-11-14

Publications (3)

Publication Number Publication Date
EP1312792A2 EP1312792A2 (de) 2003-05-21
EP1312792A3 true EP1312792A3 (de) 2004-09-01
EP1312792B1 EP1312792B1 (de) 2005-12-28

Family

ID=7705752

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02022358A Expired - Lifetime EP1312792B1 (de) 2001-11-14 2002-10-08 Kraftstoffspritzeinrichtung für eine Brennkraftmaschine

Country Status (3)

Country Link
US (1) US6763809B2 (de)
EP (1) EP1312792B1 (de)
DE (2) DE10155973A1 (de)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1826397A3 (de) * 2002-05-03 2009-08-05 Delphi Technologies, Inc. Kraftstoffeinspritzsystem
AU2003210737A1 (en) * 2003-01-30 2004-08-30 Robert Bosch Gmbh Fuel injector pump with trapped volume
US7281523B2 (en) * 2003-02-12 2007-10-16 Robert Bosch Gmbh Fuel injector pump system with high pressure post injection
AU2003291564A1 (en) * 2003-03-04 2004-09-28 Robert Bosch Gmbh Fuel injection system with accumulator fill valve assembly
ATE366359T1 (de) * 2003-12-12 2007-07-15 Delphi Tech Inc Einspritzventil mit steuerungsventil, das den druck im steuerungsraum steuert
US7066151B1 (en) * 2005-04-07 2006-06-27 Robert Bosch Gmbh Fuel injector with spill chamber
DE102005056133A1 (de) * 2005-11-23 2007-05-24 L'orange Gmbh Einspritzinjektor
US10982635B2 (en) * 2012-05-29 2021-04-20 Delphi Technologies Ip Limited Fuel injector and method for controlling the same

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0524132A2 (de) * 1991-07-16 1993-01-20 Stanadyne Automotive Corp. Brennstoffsystem für eine Rotationsverteilerbrennstoffeinspritzpumpe
EP0957261A2 (de) * 1998-05-15 1999-11-17 LUCAS INDUSTRIES public limited company Brennstoffsystem und Pumpe zur Anwendung in einem solchen System
EP1236884A2 (de) * 2001-02-28 2002-09-04 Robert Bosch Gmbh Kraftstoffeinspritzeinrichtung für Brennkraftmaschinen

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3521428A1 (de) * 1985-06-14 1986-12-18 Robert Bosch Gmbh, 7000 Stuttgart Kraftstoffeinspritzvorrichtung fuer brennkraftmaschinen
CH668621A5 (de) * 1986-01-22 1989-01-13 Dereco Dieselmotoren Forschung Kraftstoffeinspritzanlage fuer eine brennkraftmaschine.
US5732679A (en) * 1995-04-27 1998-03-31 Isuzu Motors Limited Accumulator-type fuel injection system
DE19952512A1 (de) * 1999-10-30 2001-05-10 Bosch Gmbh Robert Druckverstärker und Kraftstoffeinspritzsystem mit einem Druckverstärker

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0524132A2 (de) * 1991-07-16 1993-01-20 Stanadyne Automotive Corp. Brennstoffsystem für eine Rotationsverteilerbrennstoffeinspritzpumpe
EP0957261A2 (de) * 1998-05-15 1999-11-17 LUCAS INDUSTRIES public limited company Brennstoffsystem und Pumpe zur Anwendung in einem solchen System
EP1236884A2 (de) * 2001-02-28 2002-09-04 Robert Bosch Gmbh Kraftstoffeinspritzeinrichtung für Brennkraftmaschinen

Also Published As

Publication number Publication date
US20030111053A1 (en) 2003-06-19
DE50205426D1 (de) 2006-02-02
EP1312792B1 (de) 2005-12-28
US6763809B2 (en) 2004-07-20
EP1312792A2 (de) 2003-05-21
DE10155973A1 (de) 2003-05-22

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