WO2008068084A3 - Fuel injection valve for internal combustion engines - Google Patents

Fuel injection valve for internal combustion engines Download PDF

Info

Publication number
WO2008068084A3
WO2008068084A3 PCT/EP2007/060732 EP2007060732W WO2008068084A3 WO 2008068084 A3 WO2008068084 A3 WO 2008068084A3 EP 2007060732 W EP2007060732 W EP 2007060732W WO 2008068084 A3 WO2008068084 A3 WO 2008068084A3
Authority
WO
WIPO (PCT)
Prior art keywords
control
valve
control sleeve
cylindrical section
valve body
Prior art date
Application number
PCT/EP2007/060732
Other languages
German (de)
French (fr)
Other versions
WO2008068084A2 (en
Inventor
Nestor Rodriguez-Amaya
Original Assignee
Bosch Gmbh Robert
Nestor Rodriguez-Amaya
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 Bosch Gmbh Robert, Nestor Rodriguez-Amaya filed Critical Bosch Gmbh Robert
Priority to AT07821100T priority Critical patent/ATE460583T1/en
Priority to CN200780045276XA priority patent/CN101548093B/en
Priority to EP07821100A priority patent/EP2100027B1/en
Priority to DE502007003108T priority patent/DE502007003108D1/en
Publication of WO2008068084A2 publication Critical patent/WO2008068084A2/en
Publication of WO2008068084A3 publication Critical patent/WO2008068084A3/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
    • 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
    • F02M63/0012—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
    • F02M63/007—Details not provided for in, or of interest apart from, the apparatus of the groups F02M63/0014 - F02M63/0059
    • F02M63/0078—Valve member details, e.g. special shape, hollow or fuel passages in the valve member
    • F02M63/008—Hollow valve members, e.g. members internally guided
    • 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
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M2200/00—Details of fuel-injection apparatus, not otherwise provided for
    • F02M2200/28—Details of throttles in fuel-injection apparatus
    • 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
    • F02M2547/00—Special features for fuel-injection valves actuated by fluid pressure
    • F02M2547/003—Valve inserts containing control chamber and valve piston

Abstract

Disclosed is a fuel injection valve for internal combustion engines, comprising a housing (1) and a control valve (5) which allows a control chamber (15) to be connected to a leakage oil chamber (40). The control valve (5) encompasses a valve body (25) and a control sleeve (32) that can be moved by means of a solenoid (37). The control sleeve (32) delimits, in a radially external direction, an annular space (30) that is connected to the control chamber (32). The control sleeve (32) cooperates with a valve seat (42) formed on the valve body (25) in order to open and close a cross-section that connects the annular space (30) to the leakage oil chamber (40). The control sleeve (32) has an external cylindrical section (49) which lies opposite an internal cylindrical section (48) on the valve body (25) when the control sleeve (32) rests on the valve seat (42) such that a throttling gap (50) is formed between the external cylindrical section (49) of the control sleeve (32) and the internal cylindrical section (48) of the valve body (25).
PCT/EP2007/060732 2006-12-08 2007-10-10 Fuel injection valve for internal combustion engines WO2008068084A2 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
AT07821100T ATE460583T1 (en) 2006-12-08 2007-10-10 FUEL INJECTION VALVE FOR INTERNAL COMBUSTION ENGINES
CN200780045276XA CN101548093B (en) 2006-12-08 2007-10-10 Fuel injection valve for internal combustion engines
EP07821100A EP2100027B1 (en) 2006-12-08 2007-10-10 Fuel injection valve for internal combustion engines
DE502007003108T DE502007003108D1 (en) 2006-12-08 2007-10-10 FUEL INJECTION VALVE FOR INTERNAL COMBUSTION ENGINES

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102006057935A DE102006057935A1 (en) 2006-12-08 2006-12-08 Fuel injection valve for internal combustion engines
DE102006057935.6 2006-12-08

Publications (2)

Publication Number Publication Date
WO2008068084A2 WO2008068084A2 (en) 2008-06-12
WO2008068084A3 true WO2008068084A3 (en) 2008-07-24

Family

ID=39363178

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2007/060732 WO2008068084A2 (en) 2006-12-08 2007-10-10 Fuel injection valve for internal combustion engines

Country Status (5)

Country Link
EP (1) EP2100027B1 (en)
CN (1) CN101548093B (en)
AT (1) ATE460583T1 (en)
DE (2) DE102006057935A1 (en)
WO (1) WO2008068084A2 (en)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102007037825A1 (en) * 2007-08-10 2009-02-12 Robert Bosch Gmbh Fuel injection valve for internal combustion engines
DE602008005725D1 (en) * 2008-06-27 2011-05-05 Fiat Ricerche Fuel injection device with balanced measuring servo valve for an internal combustion engine
DE102008002717A1 (en) * 2008-06-27 2010-01-14 Robert Bosch Gmbh Fuel injector with two-part magnet armature
EP2138708B1 (en) * 2008-06-27 2010-11-03 C.R.F. Società Consortile per Azioni Fuel injector equipped with a metering servovalve for an internal combustion engine
US9464613B2 (en) 2008-06-27 2016-10-11 C.R.F. Societa Consortile Per Azioni Fuel injector equipped with a metering servovalve for an internal combustion engine
DE102009046830B4 (en) 2009-11-18 2023-02-02 Robert Bosch Gmbh Common rail system with a quantity control valve
DE102010043092A1 (en) * 2010-10-29 2012-05-03 Robert Bosch Gmbh Pressure control valve
DE102011076666A1 (en) 2011-05-30 2012-12-06 Robert Bosch Gmbh Fuel injector for use in common rail injection system of internal combustion engine, has sleeve having outer leakage side portion partially opened by control valve and configured to have a flow force due to fluid jet on sleeve
CN102374084B (en) * 2011-09-20 2012-12-05 福建省莆田市中涵机动力有限公司 Static non-leakage high pressure common-rail injector
CN102852684B (en) * 2012-10-12 2014-09-17 福建省莆田市中涵机动力有限公司 Pressure balancing type external sealing plane control valve of common-rail oil sprayer
DE102012220031A1 (en) 2012-11-02 2014-05-08 Robert Bosch Gmbh Fuel injector for internal combustion engine, has one throttle gap that is formed in area of spill compound, where another throttle gap is provided in spill compound besides former throttle gap
DE102014212549A1 (en) * 2014-06-30 2015-12-31 Robert Bosch Gmbh Gas injector for injecting gaseous fuels
DE102015202978A1 (en) * 2015-02-19 2016-08-25 Robert Bosch Gmbh Pressure control valve
DE102015204515A1 (en) * 2015-03-12 2016-09-15 Robert Bosch Gmbh Control valve for a fuel injector

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2000055490A1 (en) * 1999-03-18 2000-09-21 Delphi Technologies Inc. Fuel injector
DE10131125A1 (en) * 2001-06-28 2002-09-12 Bosch Gmbh Robert Magnetic valve has damped, one-piece armature with armature plate and bolt, element damping upward motion of armature in valve seat associated with underside of armature plate
US20030106533A1 (en) * 2001-12-11 2003-06-12 Cummins Ins. Fuel injector with feedback control
EP1612403A1 (en) * 2004-06-30 2006-01-04 C.R.F. Societa' Consortile per Azioni Servo valve for controlling an internal combustion engine fuel injector

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10335340A1 (en) * 2003-08-01 2005-02-24 Robert Bosch Gmbh Control valve for a pressure injector containing fuel injector

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2000055490A1 (en) * 1999-03-18 2000-09-21 Delphi Technologies Inc. Fuel injector
DE10131125A1 (en) * 2001-06-28 2002-09-12 Bosch Gmbh Robert Magnetic valve has damped, one-piece armature with armature plate and bolt, element damping upward motion of armature in valve seat associated with underside of armature plate
US20030106533A1 (en) * 2001-12-11 2003-06-12 Cummins Ins. Fuel injector with feedback control
EP1612403A1 (en) * 2004-06-30 2006-01-04 C.R.F. Societa' Consortile per Azioni Servo valve for controlling an internal combustion engine fuel injector

Also Published As

Publication number Publication date
DE102006057935A1 (en) 2008-06-12
CN101548093A (en) 2009-09-30
WO2008068084A2 (en) 2008-06-12
EP2100027A2 (en) 2009-09-16
EP2100027B1 (en) 2010-03-10
DE502007003108D1 (en) 2010-04-22
ATE460583T1 (en) 2010-03-15
CN101548093B (en) 2012-08-08

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