EP1008746A3 - Fuel injection system - Google Patents

Fuel injection system Download PDF

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Publication number
EP1008746A3
EP1008746A3 EP99122213A EP99122213A EP1008746A3 EP 1008746 A3 EP1008746 A3 EP 1008746A3 EP 99122213 A EP99122213 A EP 99122213A EP 99122213 A EP99122213 A EP 99122213A EP 1008746 A3 EP1008746 A3 EP 1008746A3
Authority
EP
European Patent Office
Prior art keywords
injection system
fuel
fuel injection
feed pump
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
EP99122213A
Other languages
German (de)
French (fr)
Other versions
EP1008746A2 (en
EP1008746B1 (en
Inventor
Peter Ing. Schueler (Grad.)
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 EP1008746A2 publication Critical patent/EP1008746A2/en
Publication of EP1008746A3 publication Critical patent/EP1008746A3/en
Application granted granted Critical
Publication of EP1008746B1 publication Critical patent/EP1008746B1/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
    • 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
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D33/00—Controlling delivery of fuel or combustion-air, not otherwise provided for
    • F02D33/003—Controlling the feeding of liquid fuel from storage containers to carburettors or fuel-injection apparatus ; Failure or leakage prevention; Diagnosis or detection of failure; Arrangement of sensors in the fuel system; Electric wiring; Electrostatic discharge
    • F02D33/006—Controlling the feeding of liquid fuel from storage containers to carburettors or fuel-injection apparatus ; Failure or leakage prevention; Diagnosis or detection of failure; Arrangement of sensors in the fuel system; Electric wiring; Electrostatic discharge depending on engine operating conditions, e.g. start, stop or ambient conditions
    • 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
    • F02M37/00—Apparatus or systems for feeding liquid fuel from storage containers to carburettors or fuel-injection apparatus; Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines
    • F02M37/22—Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines, e.g. arrangements in the feeding system
    • F02M37/32—Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines, e.g. arrangements in the feeding system characterised by filters or filter arrangements
    • F02M37/40—Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines, e.g. arrangements in the feeding system characterised by filters or filter arrangements with means for detection of clogging
    • 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
    • F02M37/00—Apparatus or systems for feeding liquid fuel from storage containers to carburettors or fuel-injection apparatus; Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines
    • F02M37/22—Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines, e.g. arrangements in the feeding system
    • F02M37/32—Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines, e.g. arrangements in the feeding system characterised by filters or filter arrangements
    • F02M37/34—Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines, e.g. arrangements in the feeding system characterised by filters or filter arrangements by the filter structure, e.g. honeycomb, mesh or fibrous

Abstract

Die Erfindung betrifft ein Kraftstoffeinspritzsystem, insbesondere Common-Rail-System, mit einer Vorförderpumpe (1), die aus einem Kraftstofftank (2) einen Kraftstoffstrom zu einer Hochdruckpumpe fördert. Dabei ist bezogen auf die Förderrichtung stromabwärts oder stromaufwärts der Vorförderpumpe (1) ein Kraftstofffilter (8) angeordnet.The invention relates to a fuel injection system, especially common rail system, with a pre-feed pump (1) a fuel flow from a fuel tank (2) to a high pressure pump. It is based on the Direction of flow downstream or upstream of the Pre-feed pump (1) a fuel filter (8) arranged.

Zum Schutz der Vorförderpumpe und der Hochdruckpumpe wird eine kraftstofffilterdruckdifferenzabhängige Schutzschaltung (12, 26) vorgesehen.

Figure 00000001
A protection circuit (12, 26) dependent on the fuel filter pressure difference is provided to protect the pre-feed pump and the high pressure pump.
Figure 00000001
EP99122213A 1998-12-11 1999-11-06 Fuel injection system Expired - Lifetime EP1008746B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19857249 1998-12-11
DE19857249A DE19857249A1 (en) 1998-12-11 1998-12-11 Fuel injection system

Publications (3)

Publication Number Publication Date
EP1008746A2 EP1008746A2 (en) 2000-06-14
EP1008746A3 true EP1008746A3 (en) 2003-09-17
EP1008746B1 EP1008746B1 (en) 2004-12-22

Family

ID=7890783

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99122213A Expired - Lifetime EP1008746B1 (en) 1998-12-11 1999-11-06 Fuel injection system

Country Status (4)

Country Link
US (1) US6520162B1 (en)
EP (1) EP1008746B1 (en)
JP (1) JP2000170617A (en)
DE (2) DE19857249A1 (en)

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10208576A1 (en) * 2002-02-21 2003-09-11 Bosch Gmbh Robert Hydraulic pressure relief device for a fuel injection system
FR2879674B1 (en) 2004-12-20 2007-03-30 Filtrauto Sa GAS FILTRATION SYSTEM
DE102006037174A1 (en) * 2006-08-09 2008-02-14 Robert Bosch Gmbh Apparatus and method for controlling a fuel flow rate in a low pressure circuit system for an internal combustion engine
GB2441309B (en) * 2006-08-18 2011-03-30 Parker Hannifin Corp De-aeration system
DE102007000855B4 (en) * 2006-12-27 2020-06-10 Denso Corporation Fuel delivery device and storage fuel injection system having this
US7640919B1 (en) 2008-01-31 2010-01-05 Perkins Engines Company Limited Fuel system for protecting a fuel filter
US20090211556A1 (en) * 2008-02-25 2009-08-27 Perkins Engines Company Limited System for maintaining a pump inlet pressure
US7926470B2 (en) * 2008-04-11 2011-04-19 Caterpillar Inc. Compact relief valve having damping functionality
US7827971B2 (en) * 2009-01-26 2010-11-09 Gm Global Technology Operations, Inc. Engine assembly with fuel filter gas removal apparatus
JP4803269B2 (en) * 2009-02-24 2011-10-26 株式会社デンソー Pulsation reduction device
US9316187B2 (en) * 2011-01-18 2016-04-19 Carter Fuel Systems, Llc Diesel fuel system with advanced priming
DE102011086681A1 (en) * 2011-11-21 2013-05-23 Robert Bosch Gmbh Fuel feed system for a vehicle
DE102014211978A1 (en) 2014-06-23 2015-12-24 Robert Bosch Gmbh Low pressure circuit for a fuel injection system with a temperature controlled bypass
US20160108876A1 (en) * 2015-12-28 2016-04-21 Caterpillar Inc. Oil filter
IT201800007435A1 (en) * 2018-07-23 2020-01-23 FUEL SUPPLY SYSTEM FROM A TANK TO AN INTERNAL COMBUSTION ENGINE AND METHOD FOR CHECKING THIS SYSTEM
US10738749B1 (en) 2019-01-18 2020-08-11 Pratt & Whitney Canada Corp. Method of using heat from fuel of common-rail injectors
US10865728B2 (en) * 2019-01-18 2020-12-15 Pratt & Whitney Canada Corp. Method of using backflow from common-rail fuel injector
DE102019211372A1 (en) * 2019-07-30 2021-02-04 Mtu Friedrichshafen Gmbh Method for monitoring a fuel supply system of an internal combustion engine and internal combustion engine for carrying out such a method
US11754028B2 (en) * 2021-06-23 2023-09-12 Ford Global Technologies, Llc Fuel system diaphragm valve

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0411964A1 (en) * 1989-08-04 1991-02-06 Lucas Industries Public Limited Company Low pressure fuel supply system for a fuel injection pump
US5649561A (en) * 1996-05-03 1997-07-22 Parr Manufacturing, Inc. Fuel filter and pressure regulator system
DE19714488C1 (en) * 1997-04-08 1998-09-03 Siemens Ag Fuel injection system for IC engine, particularly diesel engine

Family Cites Families (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3618777A (en) * 1969-12-15 1971-11-09 Chandler Evans Inc Low-flow contaminated fuel transfer system for a fuel control
US3591003A (en) * 1970-02-11 1971-07-06 Pall Corp Differential pressure-responsive signalling device and a filter assembly having same
US3970104A (en) * 1975-01-09 1976-07-20 Midland-Ross Corporation Fuel filter bypass valve with condition preliminary indicator and secondary indicator
US4423751A (en) * 1980-12-09 1984-01-03 Cummins Engine Company, Inc. Bypass valve and alarm assembly
JP2689721B2 (en) * 1990-11-16 1997-12-10 トヨタ自動車株式会社 Fuel pressure control device for internal combustion engine
US5078167A (en) * 1990-12-18 1992-01-07 Parr Manufacturing, Inc. Fuel filter and pressure regulator system apparatus
JP3033214B2 (en) * 1991-02-27 2000-04-17 株式会社デンソー Accumulation type fuel supply method and apparatus by a plurality of fuel pumping means, and abnormality determination apparatus in equipment having a plurality of fluid pumping means
US5195494A (en) * 1992-02-27 1993-03-23 Walbro Corporation Fuel delivery system with outlet pressure regulation
JPH0569374U (en) * 1992-02-28 1993-09-21 富士重工業株式会社 In-cylinder direct injection engine abnormality warning device
JP3556983B2 (en) * 1994-12-28 2004-08-25 トヨタ自動車株式会社 Fuel supply device for internal combustion engine
JP3575124B2 (en) * 1995-08-09 2004-10-13 株式会社デンソー Fuel supply device for internal combustion engine
DE19602082B4 (en) * 1996-01-20 2004-04-08 Mann + Hummel Gmbh Fuel module
DE19626689C1 (en) * 1996-07-03 1997-11-20 Bosch Gmbh Robert Common-rail fuel injection system monitoring method
JPH10227268A (en) * 1997-02-12 1998-08-25 Nippon Soken Inc Accumulator fuel injection device
US5873349A (en) * 1997-03-07 1999-02-23 Walbro Corporation Fuel pressure regulator
US5887572A (en) * 1997-05-05 1999-03-30 Ford Global Technologies, Inc. Pressure and temperature control for fuel delivery systems
JPH1172053A (en) * 1997-08-29 1999-03-16 Denso Corp Fuel supply device
FR2772635B1 (en) * 1997-12-18 2000-06-16 Snecma AUTOLAVABLE DEVICE FOR SEPARATION AND FILTRATION OF SOLID PARTICLES IN A FLOW OF LIQUID AND APPLICATION TO A FUEL INJECTION CIRCUIT INCLUDING SUCH A DEVICE
DE19801355B4 (en) * 1998-01-16 2004-04-08 Robert Bosch Gmbh High-pressure pump for fuel supply in fuel injection systems of internal combustion engines
US6007711A (en) * 1998-04-09 1999-12-28 Stanadyne Automotive Corp. Diverter assembly for fuel filter
US6159383A (en) * 1998-04-17 2000-12-12 Caterpillar Inc. Filter head assembly

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0411964A1 (en) * 1989-08-04 1991-02-06 Lucas Industries Public Limited Company Low pressure fuel supply system for a fuel injection pump
US5649561A (en) * 1996-05-03 1997-07-22 Parr Manufacturing, Inc. Fuel filter and pressure regulator system
DE19714488C1 (en) * 1997-04-08 1998-09-03 Siemens Ag Fuel injection system for IC engine, particularly diesel engine

Also Published As

Publication number Publication date
US6520162B1 (en) 2003-02-18
DE59911324D1 (en) 2005-01-27
DE19857249A1 (en) 2000-06-15
JP2000170617A (en) 2000-06-20
EP1008746A2 (en) 2000-06-14
EP1008746B1 (en) 2004-12-22

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