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WO2012175800A3 - Fuel injection system - Google Patents

Fuel injection system Download PDF

Info

Publication number
WO2012175800A3
WO2012175800A3 PCT/FI2012/050624 FI2012050624W WO2012175800A3 WO 2012175800 A3 WO2012175800 A3 WO 2012175800A3 FI 2012050624 W FI2012050624 W FI 2012050624W WO 2012175800 A3 WO2012175800 A3 WO 2012175800A3
Authority
WO
WIPO (PCT)
Prior art keywords
fuel
injection system
line
fuel injection
injectors
Prior art date
Application number
PCT/FI2012/050624
Other languages
French (fr)
Other versions
WO2012175800A2 (en
Inventor
Gennaro Caputo
Pietro Scrocco
Original Assignee
Wärtsilä Finland Oy
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 Wärtsilä Finland Oy filed Critical Wärtsilä Finland Oy
Priority to EP12743197.1A priority Critical patent/EP2724013B1/en
Priority to KR1020147001644A priority patent/KR101781791B1/en
Priority to CN201280030920.7A priority patent/CN103620199B/en
Publication of WO2012175800A2 publication Critical patent/WO2012175800A2/en
Publication of WO2012175800A3 publication Critical patent/WO2012175800A3/en

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D41/00—Electrical control of supply of combustible mixture or its constituents
    • F02D41/30—Controlling fuel injection
    • F02D41/38—Controlling fuel injection of the high pressure type
    • F02D41/3809—Common rail control systems
    • F02D41/3836—Controlling the fuel pressure
    • F02D41/3863—Controlling the fuel pressure by controlling the flow out of the common rail, e.g. using pressure relief 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
    • F02M63/0012—Valves
    • F02M63/0031—Valves characterized by the type of valves, e.g. special valve member details, valve seat details, valve housing details
    • F02M63/005—Pressure relief valves
    • F02M63/0052—Pressure relief valves with means for adjusting the opening pressure, e.g. electrically controlled
    • 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
    • F02M55/002—Arrangement of leakage or drain conduits in or from 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
    • 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
    • F02M59/025—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 a single piston
    • F02M59/027—Unit-pumps, i.e. single piston and cylinder pump-units, e.g. for cooperating with a camshaft
    • 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
    • F02M69/00—Low-pressure fuel-injection apparatus ; Apparatus with both continuous and intermittent injection; Apparatus injecting different types of fuel
    • F02M69/46—Details, component parts or accessories not provided for in, or of interest apart from, the apparatus covered by groups F02M69/02 - F02M69/44
    • F02M69/54—Arrangement of fuel pressure regulators
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D41/00—Electrical control of supply of combustible mixture or its constituents
    • F02D41/30—Controlling fuel injection
    • F02D41/38—Controlling fuel injection of the high pressure type
    • F02D41/3809—Common rail control systems
    • F02D2041/3881—Common rail control systems with multiple common rails, e.g. one rail per cylinder bank, or a high pressure rail and a low pressure rail
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D2200/00—Input parameters for engine control
    • F02D2200/02—Input parameters for engine control the parameters being related to the engine
    • F02D2200/06—Fuel or fuel supply system parameters
    • F02D2200/0602—Fuel pressure

Landscapes

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

Abstract

A fuel injection system (1) for a reciprocating engine, comprising fuel injectors (2) for injecting fuel into engine cylinders, injection pumps (3) for feeding fuel to the injectors (2), each injection pump comprising at least one pump element (5) for pressurizing fuel to be injected. Each injector (2) is connected to a separate pump element (5) by means of a fuel line (4). A return line (10) is connected to the fuel line (4), which return line (10) is provided with a pressure control valve (12) for controlling fuel pressure in the fuel line (4). The fuel injection system (1) is provided with a control unit (29), which is configured to control the pressure control valve (12).
PCT/FI2012/050624 2011-06-23 2012-06-15 Fuel injection system WO2012175800A2 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP12743197.1A EP2724013B1 (en) 2011-06-23 2012-06-15 Fuel injection system
KR1020147001644A KR101781791B1 (en) 2011-06-23 2012-06-15 Fuel injection system
CN201280030920.7A CN103620199B (en) 2011-06-23 2012-06-15 Fuel injection system

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI20115649A FI123271B (en) 2011-06-23 2011-06-23 Fuel injection systems
FI20115649 2011-06-23

Publications (2)

Publication Number Publication Date
WO2012175800A2 WO2012175800A2 (en) 2012-12-27
WO2012175800A3 true WO2012175800A3 (en) 2013-02-14

Family

ID=44206858

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/FI2012/050624 WO2012175800A2 (en) 2011-06-23 2012-06-15 Fuel injection system

Country Status (5)

Country Link
EP (1) EP2724013B1 (en)
KR (1) KR101781791B1 (en)
CN (1) CN103620199B (en)
FI (1) FI123271B (en)
WO (1) WO2012175800A2 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3032086A1 (en) * 2014-12-08 2016-06-15 Wärtsilä Finland Oy Fuel injection arrangement
EP3032091B1 (en) * 2014-12-08 2019-03-20 Wärtsilä Finland Oy Fuel injection arrangement
DE102018208901A1 (en) * 2018-06-06 2019-12-12 Robert Bosch Gmbh Water injection device for an internal combustion engine

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102006040441B3 (en) * 2006-08-29 2008-02-21 Mtu Friedrichshafen Gmbh Method for identifying opening of passive pressure limiting valve, involves supplying fuel from common-rail system in fuel tank, where load shedding is identified
DE102009031527B3 (en) * 2009-07-02 2010-11-18 Mtu Friedrichshafen Gmbh Method for controlling and regulating an internal combustion engine
DE102009051390A1 (en) * 2009-10-30 2011-05-05 Mtu Friedrichshafen Gmbh Method for controlling and regulating an internal combustion engine

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3304755B2 (en) * 1996-04-17 2002-07-22 三菱電機株式会社 Fuel injection device
KR100612784B1 (en) * 2002-01-31 2006-08-17 가부시키가이샤 덴소 Accumulator injection system
DE10237586A1 (en) * 2002-08-16 2004-02-26 Robert Bosch Gmbh Fuel injection installation for IC engine, such as diesel engine with high pressure pump for fuel delivery to buffer container, whose piston is driven from engine camshaft
JP2005146882A (en) * 2003-11-11 2005-06-09 Toyota Motor Corp Fuel injection device for internal combustion engine
JP4432610B2 (en) * 2004-05-17 2010-03-17 トヨタ自動車株式会社 Fuel supply device for internal combustion engine
JP4318266B2 (en) * 2007-03-30 2009-08-19 エムエーエヌ・ディーゼル・フィリアル・アフ・エムエーエヌ・ディーゼル・エスイー・ティスクランド Cam-driven fuel injection system for large two-cycle diesel engines

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102006040441B3 (en) * 2006-08-29 2008-02-21 Mtu Friedrichshafen Gmbh Method for identifying opening of passive pressure limiting valve, involves supplying fuel from common-rail system in fuel tank, where load shedding is identified
DE102009031527B3 (en) * 2009-07-02 2010-11-18 Mtu Friedrichshafen Gmbh Method for controlling and regulating an internal combustion engine
DE102009051390A1 (en) * 2009-10-30 2011-05-05 Mtu Friedrichshafen Gmbh Method for controlling and regulating an internal combustion engine

Also Published As

Publication number Publication date
WO2012175800A2 (en) 2012-12-27
CN103620199B (en) 2016-05-04
CN103620199A (en) 2014-03-05
FI20115649A0 (en) 2011-06-23
KR101781791B1 (en) 2017-09-26
FI20115649A (en) 2012-12-24
FI123271B (en) 2013-01-31
EP2724013A2 (en) 2014-04-30
KR20140043127A (en) 2014-04-08
EP2724013B1 (en) 2015-07-29

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