EP1247978A3 - Fuel injection system for an internal combustion engine - Google Patents

Fuel injection system for an internal combustion engine Download PDF

Info

Publication number
EP1247978A3
EP1247978A3 EP02007620A EP02007620A EP1247978A3 EP 1247978 A3 EP1247978 A3 EP 1247978A3 EP 02007620 A EP02007620 A EP 02007620A EP 02007620 A EP02007620 A EP 02007620A EP 1247978 A3 EP1247978 A3 EP 1247978A3
Authority
EP
European Patent Office
Prior art keywords
pressure
fuel injection
injection system
combustion engine
internal combustion
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
EP02007620A
Other languages
German (de)
French (fr)
Other versions
EP1247978B1 (en
EP1247978A2 (en
Inventor
Michael Dr. Willmann
Albert Kloos
Gerd Huber
Paul Neumeier
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.)
Rolls Royce Solutions GmbH
Original Assignee
MTU Friedrichshafen 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 MTU Friedrichshafen GmbH filed Critical MTU Friedrichshafen GmbH
Publication of EP1247978A2 publication Critical patent/EP1247978A2/en
Publication of EP1247978A3 publication Critical patent/EP1247978A3/en
Application granted granted Critical
Publication of EP1247978B1 publication Critical patent/EP1247978B1/en
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • 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
    • F02M63/0007—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 electrically actuated 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
    • 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
    • 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
    • F02M63/0012—Valves
    • F02M63/0014—Valves characterised by the valve actuating means
    • F02M63/0028—Valves characterised by the valve actuating means hydraulic
    • F02M63/0029—Valves characterised by the valve actuating means hydraulic using a pilot valve controlling a hydraulic chamber
    • 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

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

The fuel injection system is for a diesel engine. It has a number of fuel injectors (1) supplied via a high pressure fuel line (13) containing a pressure control valve (26) for controlling the pressure during fuel injection. The pressure control valve has a freely sliding piston (30) with a pressure space (36,38) on either side and a slider (32) inserted in the flow path of the high pressure fuel line, for controlling the flow cross-section, a setting valve (14,16) determining the pressure in one or both pressure spaces, for moving the piston in the opening or closing direction.
EP02007620A 2001-04-06 2002-04-04 Fuel injection system for an internal combustion engine Expired - Fee Related EP1247978B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10117401 2001-04-06
DE10117401A DE10117401C2 (en) 2001-04-06 2001-04-06 Fuel injection system for an internal combustion engine

Publications (3)

Publication Number Publication Date
EP1247978A2 EP1247978A2 (en) 2002-10-09
EP1247978A3 true EP1247978A3 (en) 2004-01-14
EP1247978B1 EP1247978B1 (en) 2004-12-29

Family

ID=7680774

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02007620A Expired - Fee Related EP1247978B1 (en) 2001-04-06 2002-04-04 Fuel injection system for an internal combustion engine

Country Status (4)

Country Link
US (1) US6729302B2 (en)
EP (1) EP1247978B1 (en)
AT (1) ATE286207T1 (en)
DE (2) DE10117401C2 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102006003484A1 (en) * 2005-03-16 2006-09-21 Robert Bosch Gmbh Device for injecting fuel
DE102005058556B4 (en) * 2005-12-08 2017-04-06 Man Diesel & Turbo Se Injector of a fuel injection system
US8191534B2 (en) * 2008-02-28 2012-06-05 General Electric Company High viscosity fuel injection pressure reduction system and method
EP2410168A1 (en) * 2010-07-23 2012-01-25 Wärtsilä Schweiz AG Fluid dispenser and method for providing an operating fluid using a fluid dispenser
DE102013204093B4 (en) * 2013-03-11 2021-03-18 Mtu Friedrichshafen Gmbh Method for venting a fuel supply line and an internal combustion engine
EP3550136A4 (en) * 2016-12-02 2020-07-29 Meiji University Fuel injection device

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19612721A1 (en) * 1995-03-30 1996-10-02 Avl Verbrennungskraft Messtech Stored fuel-injection system with preinjection for IC engine
DE19734354A1 (en) * 1997-08-08 1999-02-11 Mtu Friedrichshafen Gmbh Internal combustion engine fuel injection system
DE19930276A1 (en) * 1998-07-02 2000-01-27 Avl List Gmbh Storage injection arrangement for combustion engine, having pressure hold valve arranged between switching valve and injection device
EP0995903A2 (en) * 1998-10-20 2000-04-26 Wärtsilä NSD Schweiz AG Device for injecting liquids into a cylinder of a diesel engine and diesel engine
DE19910589A1 (en) * 1999-03-10 2000-09-21 Siemens Ag Injection valve for internal combustion engine
DE19921878A1 (en) * 1999-05-12 2000-11-23 Daimler Chrysler Ag Fuel injection system for IC engine uses fuel injector with magnetically-operated injection valve and independent magnetic valve controlling pressure control valve for fuel feeds to and from injector

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS49108427A (en) * 1973-02-19 1974-10-15
US3792390A (en) * 1973-05-29 1974-02-19 Allis Chalmers Magnetic actuator device
DE2803049A1 (en) * 1978-01-25 1979-08-09 Bosch Gmbh Robert PUMP NOZZLE FOR COMBUSTION MACHINES
DE2806788A1 (en) * 1978-02-17 1979-08-23 Bosch Gmbh Robert PUMP NOZZLE FOR COMBUSTION MACHINES
US4247052A (en) * 1979-10-09 1981-01-27 General Motors Corporation Electromagnetic fuel injector
US4450783A (en) * 1982-09-30 1984-05-29 Cummins Engine Company, Inc. Electronically controlled fuel pump
US4559511A (en) * 1983-04-19 1985-12-17 Westinghouse Electric Corp. Vacuum contactor having DC electromagnet with improved force watts ratio
JP2719924B2 (en) * 1988-05-10 1998-02-25 株式会社ゼクセル Booster unit injector
US4928028A (en) * 1989-02-23 1990-05-22 Hydraulic Units, Inc. Proportional permanent magnet force actuator
US5720261A (en) * 1994-12-01 1998-02-24 Oded E. Sturman Valve controller systems and methods and fuel injection systems utilizing the same
WO1999010670A1 (en) * 1997-08-25 1999-03-04 Mitsubishi Denki Kabushiki Kaisha Duty driving solenoid valve
JPH11182376A (en) 1997-12-15 1999-07-06 Zexel:Kk Cylinder injection device
WO2000052326A1 (en) * 1999-03-01 2000-09-08 Siemens Aktiengesellschaft System and method for controlling a control valve for a diesel fuel injection system

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19612721A1 (en) * 1995-03-30 1996-10-02 Avl Verbrennungskraft Messtech Stored fuel-injection system with preinjection for IC engine
DE19734354A1 (en) * 1997-08-08 1999-02-11 Mtu Friedrichshafen Gmbh Internal combustion engine fuel injection system
DE19930276A1 (en) * 1998-07-02 2000-01-27 Avl List Gmbh Storage injection arrangement for combustion engine, having pressure hold valve arranged between switching valve and injection device
EP0995903A2 (en) * 1998-10-20 2000-04-26 Wärtsilä NSD Schweiz AG Device for injecting liquids into a cylinder of a diesel engine and diesel engine
DE19910589A1 (en) * 1999-03-10 2000-09-21 Siemens Ag Injection valve for internal combustion engine
DE19921878A1 (en) * 1999-05-12 2000-11-23 Daimler Chrysler Ag Fuel injection system for IC engine uses fuel injector with magnetically-operated injection valve and independent magnetic valve controlling pressure control valve for fuel feeds to and from injector

Also Published As

Publication number Publication date
EP1247978B1 (en) 2004-12-29
EP1247978A2 (en) 2002-10-09
ATE286207T1 (en) 2005-01-15
DE50201867D1 (en) 2005-02-03
US6729302B2 (en) 2004-05-04
US20020179063A1 (en) 2002-12-05
DE10117401A1 (en) 2002-10-17
DE10117401C2 (en) 2003-02-27

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