EP1273797A3 - Fuel injection device - Google Patents

Fuel injection device Download PDF

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Publication number
EP1273797A3
EP1273797A3 EP02011711A EP02011711A EP1273797A3 EP 1273797 A3 EP1273797 A3 EP 1273797A3 EP 02011711 A EP02011711 A EP 02011711A EP 02011711 A EP02011711 A EP 02011711A EP 1273797 A3 EP1273797 A3 EP 1273797A3
Authority
EP
European Patent Office
Prior art keywords
injection device
fuel injection
pump
fuel
injectors
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
EP02011711A
Other languages
German (de)
French (fr)
Other versions
EP1273797B1 (en
EP1273797A2 (en
Inventor
Hans-Christoph Magel
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 EP1273797A2 publication Critical patent/EP1273797A2/en
Publication of EP1273797A3 publication Critical patent/EP1273797A3/en
Application granted granted Critical
Publication of EP1273797B1 publication Critical patent/EP1273797B1/en
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
    • F02M57/00—Fuel-injectors combined or associated with other devices
    • F02M57/02—Injectors structurally combined with fuel-injection pumps
    • F02M57/022—Injectors structurally combined with fuel-injection pumps characterised by the pump drive
    • F02M57/023—Injectors structurally combined with fuel-injection pumps characterised by the pump drive mechanical
    • 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
    • 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
    • F02M55/00—Fuel-injection apparatus characterised by their fuel conduits or their venting means; Arrangements of conduits between fuel tank and pump F02M37/00
    • F02M55/02—Conduits between injection pumps and injectors, e.g. conduits between pump and common-rail or conduits between common-rail and injectors
    • 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
    • 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
    • F02M59/46—Valves
    • F02M59/462—Delivery valves
    • 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
    • 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
    • F02M63/0005—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 valves actuated by fluid 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
    • 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
    • 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
    • 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
    • F02M45/12—Fuel-injection apparatus characterised by having a cyclic delivery of specific time/pressure or time/quantity relationship providing a continuous cyclic delivery with variable pressure

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Fuel-Injection Apparatus (AREA)

Abstract

Eine Kraftstoffeinspritzeinrichtung (3) einer Brennkraftmaschine weist je nach Anzahl der Zylinder mindestens ein lokales jedem Injektor (2) zugeordnetes Pumpenelement (1) einer Pumpe-Düse-Einheit oder eines Pumpe-Leitung-Düse-Systems zur Verdichtung des Kraftstoffs auf. Weiterhin ist ein zentraler Druckspeicher (25) vorgesehen, an den die Injektoren (2) angeschlossen sind.

Figure 00000001
A fuel injection device (3) of an internal combustion engine, depending on the number of cylinders on at least one local each injector (2) associated pump element (1) of a pump-nozzle unit or a pump-line-nozzle system for compression of the fuel. Furthermore, a central pressure accumulator (25) is provided, to which the injectors (2) are connected.
Figure 00000001
EP20020011711 2001-07-05 2002-05-25 Fuel injection device Expired - Lifetime EP1273797B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE2001132732 DE10132732A1 (en) 2001-07-05 2001-07-05 Fuel injection system
DE10132732 2001-07-05

Publications (3)

Publication Number Publication Date
EP1273797A2 EP1273797A2 (en) 2003-01-08
EP1273797A3 true EP1273797A3 (en) 2005-01-19
EP1273797B1 EP1273797B1 (en) 2008-07-02

Family

ID=7690798

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20020011711 Expired - Lifetime EP1273797B1 (en) 2001-07-05 2002-05-25 Fuel injection device

Country Status (3)

Country Link
EP (1) EP1273797B1 (en)
JP (1) JP3887583B2 (en)
DE (2) DE10132732A1 (en)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1359316B1 (en) * 2002-05-03 2007-04-18 Delphi Technologies, Inc. Fuel injection system
DE10301194A1 (en) * 2003-01-15 2004-07-29 Robert Bosch Gmbh Fuel injection device for an internal combustion engine (ICE) has a high-pressure fuel pump linked to a fuel injection valve for each cylinder in the ICE
FR2871197B1 (en) * 2004-06-04 2006-07-28 Renault V I Sa PUMP INJECTOR
DE102004028886A1 (en) * 2004-06-15 2006-01-05 Robert Bosch Gmbh Fuel injection system
FR2872224A1 (en) * 2004-06-29 2005-12-30 Renault Sas Fuel injection device for e.g. diesel engine, has auxiliary fuel inlet duct with shutter driven from closing position towards releasing position when pressure of fuel in main fuel inlet ducts is lower than pressure in auxiliary duct
DE102004037538A1 (en) * 2004-08-03 2006-02-23 Robert Bosch Gmbh Method and device for reducing the rail pressure in a common rail injection system
EP1657430B1 (en) 2004-11-12 2008-05-07 C.R.F. Società Consortile per Azioni An accumulation volume fuel injection system for an internal combustion engine
EP1904741B1 (en) * 2005-07-18 2010-11-17 Ganser-Hydromag AG Accumulator injection system for an internal combustion engine
US7398763B2 (en) * 2005-11-09 2008-07-15 Caterpillar Inc. Multi-source fuel system for variable pressure injection
CN101400886B (en) * 2006-03-30 2010-09-08 沃尔沃拉斯特瓦格纳公司 Fuel injection system
US7392791B2 (en) 2006-05-31 2008-07-01 Caterpillar Inc. Multi-source fuel system for variable pressure injection
US7353800B2 (en) 2006-05-24 2008-04-08 Caterpillar Inc. Multi-source fuel system having grouped injector pressure control
US7431017B2 (en) 2006-05-24 2008-10-07 Caterpillar Inc. Multi-source fuel system having closed loop pressure control
GB0614537D0 (en) * 2006-07-21 2006-08-30 Delphi Tech Inc Fuel Injection System
DE102008051931A1 (en) 2008-10-16 2010-04-22 Continental Automotive Gmbh Injection system for an internal combustion engine
CN102900576A (en) * 2012-10-22 2013-01-30 哈尔滨工程大学 Electric control common rail oil injection system with two-stage supercharging piston

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19910970A1 (en) * 1999-03-12 2000-09-28 Bosch Gmbh Robert Fuel injector
DE19939428A1 (en) * 1999-08-20 2001-03-01 Bosch Gmbh Robert Method and device for performing a fuel injection
DE19939419A1 (en) * 1999-08-20 2001-03-01 Bosch Gmbh Robert Fuel injector
DE19939429A1 (en) * 1999-08-20 2001-03-01 Bosch Gmbh Robert Fuel injector

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19910970A1 (en) * 1999-03-12 2000-09-28 Bosch Gmbh Robert Fuel injector
DE19939428A1 (en) * 1999-08-20 2001-03-01 Bosch Gmbh Robert Method and device for performing a fuel injection
DE19939419A1 (en) * 1999-08-20 2001-03-01 Bosch Gmbh Robert Fuel injector
DE19939429A1 (en) * 1999-08-20 2001-03-01 Bosch Gmbh Robert Fuel injector

Also Published As

Publication number Publication date
DE10132732A1 (en) 2003-01-23
EP1273797B1 (en) 2008-07-02
DE50212423D1 (en) 2008-08-14
EP1273797A2 (en) 2003-01-08
JP3887583B2 (en) 2007-02-28
JP2003042040A (en) 2003-02-13

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