EP0962650A3 - Accumulator-type fuel injection apparatus and control method for the same - Google Patents

Accumulator-type fuel injection apparatus and control method for the same Download PDF

Info

Publication number
EP0962650A3
EP0962650A3 EP99103574A EP99103574A EP0962650A3 EP 0962650 A3 EP0962650 A3 EP 0962650A3 EP 99103574 A EP99103574 A EP 99103574A EP 99103574 A EP99103574 A EP 99103574A EP 0962650 A3 EP0962650 A3 EP 0962650A3
Authority
EP
European Patent Office
Prior art keywords
fuel
fuel injection
accumulator
pressure
injection apparatus
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
EP99103574A
Other languages
German (de)
French (fr)
Other versions
EP0962650A2 (en
EP0962650B1 (en
Inventor
Yutaka Tanai
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.)
Toyota Motor Corp
Original Assignee
Toyota Motor Corp
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 Toyota Motor Corp filed Critical Toyota Motor Corp
Publication of EP0962650A2 publication Critical patent/EP0962650A2/en
Publication of EP0962650A3 publication Critical patent/EP0962650A3/en
Application granted granted Critical
Publication of EP0962650B1 publication Critical patent/EP0962650B1/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
    • 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
    • F02M59/02—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps of reciprocating-piston or reciprocating-cylinder type
    • F02M59/08—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps of reciprocating-piston or reciprocating-cylinder type characterised by two or more pumping elements with conjoint outlet or several pumping elements feeding one engine cylinder
    • 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

Abstract

An accumulator-type fuel injection apparatus has a plurality of fuel injection valves for corresponding individual cylinders of an engine. The fuel injection valves (2) are connected to a common pressure-accumulator chamber (3) that is connected to an ejection side of a fuel pump (5). Fuel is pumped from the fuel pump (5) into the pressure-accumulator chamber (3) and then supplied into the cylinders via the corresponding fuel injection valves (2). The fuel pumping timing of the fuel pump is set relative to the fuel injection timing so that a variation in fuel pressure in the pressure-accumulating chamber (3) at the time of start of a fuel injecting operation is smaller than a predetermined set value.
EP99103574A 1998-06-01 1999-02-24 Accumulator-type fuel injection apparatus and control method for the same Expired - Lifetime EP0962650B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP15131498 1998-06-01
JP15131498A JP3446609B2 (en) 1998-06-01 1998-06-01 Accumulator type fuel injection device

Publications (3)

Publication Number Publication Date
EP0962650A2 EP0962650A2 (en) 1999-12-08
EP0962650A3 true EP0962650A3 (en) 2003-03-05
EP0962650B1 EP0962650B1 (en) 2005-05-25

Family

ID=15515945

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99103574A Expired - Lifetime EP0962650B1 (en) 1998-06-01 1999-02-24 Accumulator-type fuel injection apparatus and control method for the same

Country Status (3)

Country Link
EP (1) EP0962650B1 (en)
JP (1) JP3446609B2 (en)
DE (1) DE69925415T2 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100497917C (en) * 2002-01-31 2009-06-10 株式会社电装 Pressure-accumulating jet system
ITBO20040322A1 (en) 2004-05-20 2004-08-20 Magneti Marelli Powertrain Spa METHOD AND SYSTEM FOR DIRECT FUEL INJECTION INTO AN INTERNAL COMBUSTION ENGINE
ITBO20040323A1 (en) 2004-05-20 2004-08-20 Magneti Marelli Powertrain Spa METHOD OF DIRECT INJECTION OF FUEL INTO AN INTERNAL COMBUSTION ENGINE
DE102008050060A1 (en) * 2008-10-01 2010-04-08 Man Diesel Se Common-rail fuel injection system for combustion engine, particularly marine diesel engine, has fuel reservoir and high pressure reservoir for filling of combustion chambers of combustion engine
DE102014208558A1 (en) * 2014-05-07 2015-11-12 Robert Bosch Gmbh Injection system and method for operating an injection molding system
JP6973010B2 (en) * 2017-12-13 2021-11-24 トヨタ自動車株式会社 Fuel pump controller

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0481964A2 (en) * 1988-11-24 1992-04-22 Nippondenso Co., Ltd. Variable-discharge high pressure pump
JPH05106495A (en) * 1991-10-15 1993-04-27 Nippondenso Co Ltd Accumulator type fuel injection device for internal combustion engine

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6142125A (en) * 1997-08-22 2000-11-07 Isuzu Motors Limited Supply pump for common rail fuel injection system

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0481964A2 (en) * 1988-11-24 1992-04-22 Nippondenso Co., Ltd. Variable-discharge high pressure pump
JPH05106495A (en) * 1991-10-15 1993-04-27 Nippondenso Co Ltd Accumulator type fuel injection device for internal combustion engine

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 017, no. 465 (M - 1468) 25 August 1993 (1993-08-25) *

Also Published As

Publication number Publication date
JP3446609B2 (en) 2003-09-16
EP0962650A2 (en) 1999-12-08
JPH11343896A (en) 1999-12-14
DE69925415D1 (en) 2005-06-30
EP0962650B1 (en) 2005-05-25
DE69925415T2 (en) 2006-02-02

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