WO2005054655A3 - Method for providing a controlled injection rate and injection pressure in a fuel injector assembly - Google Patents

Method for providing a controlled injection rate and injection pressure in a fuel injector assembly Download PDF

Info

Publication number
WO2005054655A3
WO2005054655A3 PCT/US2004/039072 US2004039072W WO2005054655A3 WO 2005054655 A3 WO2005054655 A3 WO 2005054655A3 US 2004039072 W US2004039072 W US 2004039072W WO 2005054655 A3 WO2005054655 A3 WO 2005054655A3
Authority
WO
WIPO (PCT)
Prior art keywords
valve member
solenoid
pressure
injector
providing
Prior art date
Application number
PCT/US2004/039072
Other languages
French (fr)
Other versions
WO2005054655A2 (en
WO2005054655B1 (en
Inventor
Robert D Straub
Original Assignee
Bosch Gmbh Robert
Robert D Straub
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
Priority claimed from US10/724,480 external-priority patent/US7150410B1/en
Application filed by Bosch Gmbh Robert, Robert D Straub filed Critical Bosch Gmbh Robert
Priority to DE112004002280T priority Critical patent/DE112004002280T5/en
Priority to GB0609805A priority patent/GB2422915B8/en
Publication of WO2005054655A2 publication Critical patent/WO2005054655A2/en
Publication of WO2005054655A3 publication Critical patent/WO2005054655A3/en
Publication of WO2005054655B1 publication Critical patent/WO2005054655B1/en

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
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D1/00—Controlling fuel-injection pumps, e.g. of high pressure injection type
    • F02D1/02—Controlling fuel-injection pumps, e.g. of high pressure injection type not restricted to adjustment of injection timing, e.g. varying amount of fuel delivered
    • F02D1/06—Controlling fuel-injection pumps, e.g. of high pressure injection type not restricted to adjustment of injection timing, e.g. varying amount of fuel delivered by means dependent on pressure of engine working fluid
    • 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
    • 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
    • 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
    • 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
    • F02M63/0015—Valves characterised by the valve actuating means electrical, e.g. using solenoid
    • 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
    • F02M63/004—Sliding valves, e.g. spool valves, i.e. whereby the closing member has a sliding movement along a seat for opening and closing
    • 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
    • F02M63/0043—Two-way 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
    • F02M63/0059—Arrangements of valve actuators
    • F02M63/0068—Actuators specially adapted for partial and full opening of the 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
    • 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

Abstract

A method for controlling injection rate and injection pressure of an electromagnetic fuel injector assembly having a pressure balanced control valve including a solenoid and a valve member subject to the pressure developed by the injector and actuated by the solenoid to close the valve member against the biasing force of a spring. The control valve is supported in a valve bore in an injector body. The method includes the step of providing a first level of current to the solenoid for moving the valve member from an open to a closed position allowing the pressure in the injector to rise, providing a regulated current to the solenoid at preselected times during the injector event to unbalance the forces acting on the valve member thereby slightly unseating the valve member to regulate injection pressure and injection rate of the fuel injector, and ending solenoid current delivery thereby moving the valve member to its open position.
PCT/US2004/039072 2003-11-28 2004-11-19 Method for providing a controlled injection rate and injection pressure in a fuel injector assembly WO2005054655A2 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DE112004002280T DE112004002280T5 (en) 2003-11-28 2004-11-19 A method of providing a controlled injection rate and pressure in a fuel injection assembly
GB0609805A GB2422915B8 (en) 2003-11-28 2004-11-19 Method for providing a controlled injection rate and injection pressure in a fuel injector assembly

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US10/724,480 US7150410B1 (en) 1999-01-29 2003-11-28 Method for providing a controlled injection rate and injection pressure in a fuel injector assembly
US10/724,480 2003-11-28

Publications (3)

Publication Number Publication Date
WO2005054655A2 WO2005054655A2 (en) 2005-06-16
WO2005054655A3 true WO2005054655A3 (en) 2006-07-20
WO2005054655B1 WO2005054655B1 (en) 2006-08-24

Family

ID=34652669

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2004/039072 WO2005054655A2 (en) 2003-11-28 2004-11-19 Method for providing a controlled injection rate and injection pressure in a fuel injector assembly

Country Status (3)

Country Link
DE (1) DE112004002280T5 (en)
GB (1) GB2422915B8 (en)
WO (1) WO2005054655A2 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7707993B2 (en) 2008-06-24 2010-05-04 Caterpillar Inc. Electronic pressure relief in a mechanically actuated fuel injector
US20200025122A1 (en) * 2018-07-17 2020-01-23 Continental Automotive Systems, Inc. Engine control system and method for controlling activation of solenoid valves
CN109411179B (en) * 2018-11-14 2021-03-02 立讯精密工业（昆山）有限公司 Coil framework

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5494219A (en) * 1994-06-02 1996-02-27 Caterpillar Inc. Fuel injection control valve with dual solenoids
US5687693A (en) * 1994-07-29 1997-11-18 Caterpillar Inc. Hydraulically-actuated fuel injector with direct control needle valve

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5494219A (en) * 1994-06-02 1996-02-27 Caterpillar Inc. Fuel injection control valve with dual solenoids
US5687693A (en) * 1994-07-29 1997-11-18 Caterpillar Inc. Hydraulically-actuated fuel injector with direct control needle valve

Also Published As

Publication number Publication date
GB2422915B (en) 2007-05-02
GB2422915A8 (en) 2007-06-05
WO2005054655A2 (en) 2005-06-16
DE112004002280T5 (en) 2006-11-02
GB0609805D0 (en) 2006-06-28
GB2422915A (en) 2006-08-09
GB2422915B8 (en) 2007-06-05
WO2005054655B1 (en) 2006-08-24

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