EP1918569A3 - Fuel injection valve - Google Patents

Fuel injection valve Download PDF

Info

Publication number
EP1918569A3
EP1918569A3 EP07115065A EP07115065A EP1918569A3 EP 1918569 A3 EP1918569 A3 EP 1918569A3 EP 07115065 A EP07115065 A EP 07115065A EP 07115065 A EP07115065 A EP 07115065A EP 1918569 A3 EP1918569 A3 EP 1918569A3
Authority
EP
European Patent Office
Prior art keywords
inlet
pressure chamber
valve
throttle
fuel injection
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.)
Withdrawn
Application number
EP07115065A
Other languages
German (de)
French (fr)
Other versions
EP1918569A2 (en
Inventor
Friedrich Boecking
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 EP1918569A2 publication Critical patent/EP1918569A2/en
Publication of EP1918569A3 publication Critical patent/EP1918569A3/en
Withdrawn legal-status Critical Current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
    • 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
    • F02M63/0042—Sliding valves, e.g. spool valves, i.e. whereby the closing member has a sliding movement along a seat for opening and closing combined with valve seats of the lift valve type
    • 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
    • F02M2547/00—Special features for fuel-injection valves actuated by fluid pressure
    • F02M2547/001—Control chambers formed by movable sleeves
    • 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

Abstract

Die Erfindung betrifft ein Kraftstoffeinspritzventil für Brennkraftmaschinen, mit einem einen Zulauf für den Kraftstoff aufweisenden Gehäuse, in dem eine Ventilnadel längsverschiebbar angeordnet ist, die durch ihre Längsbewegung mit einem Ventilsitz zum Öffnen und Schließen wenigstens einer Einspritzöffnung zusammenwirkt und mit einem elektromagnetischen Antrieb zum Betätigen eines Steuerventils, das einen der Betätigung der Ventilnadel dienenden Druckraum über eine Ablaufdrossel druckbeaufschlagt oder druckentlastet, wobei der Druckraum über eine erste Zulaufdrossel mit dem Zulauf verbunden ist. Es ist vorgesehen, dass der Zulauf (7) über eine zweite Zulaufdrossel (47) mit der den Druckraum (40) abgewandten Seite der Ablaufdrossel (49) verbunden ist.

Figure imgaf001
The invention relates to a fuel injection valve for internal combustion engines, having a housing for the fuel having a housing in which a valve needle is arranged longitudinally displaceable, which cooperates by their longitudinal movement with a valve seat for opening and closing at least one injection port and an electromagnetic drive for actuating a control valve , which pressurizes or depressurizes a pressure chamber serving to actuate the valve needle via an outlet throttle, wherein the pressure chamber is connected to the inlet via a first inlet throttle. It is provided that the inlet (7) via a second inlet throttle (47) with the pressure chamber (40) facing away from the outlet throttle (49) is connected.
Figure imgaf001
EP07115065A 2006-10-23 2007-08-28 Fuel injection valve Withdrawn EP1918569A3 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE200610049883 DE102006049883A1 (en) 2006-10-23 2006-10-23 Fuel injecting valve for internal-combustion engine, has housing with inlet connected with side of draining throttle over inlet throttle, where side is turned away from chamber that is connected with inlet over another inlet throttle

Publications (2)

Publication Number Publication Date
EP1918569A2 EP1918569A2 (en) 2008-05-07
EP1918569A3 true EP1918569A3 (en) 2008-12-24

Family

ID=39110880

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07115065A Withdrawn EP1918569A3 (en) 2006-10-23 2007-08-28 Fuel injection valve

Country Status (2)

Country Link
EP (1) EP1918569A3 (en)
DE (1) DE102006049883A1 (en)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106593724B (en) * 2017-01-18 2023-03-21 哈尔滨工程大学 Bypass type electric control oil injector with hydraulic feedback
CN106640453B (en) * 2017-01-18 2023-01-03 哈尔滨工程大学 Micro-dynamic oil return electric control oil injector with hydraulic feedback
CN106762279B (en) * 2017-01-18 2023-03-21 哈尔滨工程大学 Resonance bypass type electric control oil injector with hydraulic feedback
CN106762288B (en) * 2017-01-18 2023-03-17 哈尔滨工程大学 Pressure accumulation hole plate type electric control oil injector with hydraulic feedback
CN106762287B (en) * 2017-01-18 2023-03-21 哈尔滨工程大学 Resonant orifice plate type electric control oil injector with hydraulic feedback
CN106762281B (en) * 2017-01-18 2023-03-21 哈尔滨工程大学 Electric control oil injector with hydraulic feedback
CN106762278B (en) * 2017-01-18 2023-03-21 哈尔滨工程大学 Micro-dynamic oil return resonance bypass type electric control oil injector with hydraulic feedback
CN107035586B (en) * 2017-01-18 2023-01-03 哈尔滨工程大学 Micro-dynamic oil return resonant type electric control oil injector with hydraulic feedback
CN106762286B (en) * 2017-01-18 2023-03-21 哈尔滨工程大学 Micro-dynamic oil return bypass type electric control oil injector with hydraulic feedback
CN108131230B (en) * 2017-12-26 2024-03-08 南岳电控（衡阳）工业技术股份有限公司 High-pressure common rail heavy mechanical oil sprayer of diesel engine

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001088366A1 (en) * 2000-05-18 2001-11-22 Robert Bosch Gmbh Accumulator fuel-injection system for an internal combustion engine
US20030052184A1 (en) * 2001-09-15 2003-03-20 Friedrich Boecking Valve for regulating fluids
DE10326260A1 (en) * 2003-06-11 2005-01-05 Robert Bosch Gmbh Fuel injection valve and method for its 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
DE102004030445A1 (en) * 2004-06-24 2006-01-12 Robert Bosch Gmbh Fuel injector

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001088366A1 (en) * 2000-05-18 2001-11-22 Robert Bosch Gmbh Accumulator fuel-injection system for an internal combustion engine
US20030052184A1 (en) * 2001-09-15 2003-03-20 Friedrich Boecking Valve for regulating fluids
DE10326260A1 (en) * 2003-06-11 2005-01-05 Robert Bosch Gmbh Fuel injection valve and method for its control
DE102004030445A1 (en) * 2004-06-24 2006-01-12 Robert Bosch Gmbh Fuel injector
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
EP1918569A2 (en) 2008-05-07
DE102006049883A1 (en) 2008-04-24

Similar Documents

Publication Publication Date Title
EP1918569A3 (en) Fuel injection valve
EP3055550B1 (en) Injection valve and method for operating an injection valve
DE102010037567B4 (en) Electrohydraulic variable valve lift device
EP2597294A3 (en) Valve, in particular low pressure valve, for controlling exhaust gas recirculation
DE102016207743A1 (en) Device for metering a gaseous fuel to an injector
EP0976924A3 (en) Servo valve for an injector and injector
EP1865192A3 (en) Fuel injector with servo assistance
DE102006012078A1 (en) Fuel injection device for an internal combustion engine with direct fuel injection
EP2025922A3 (en) Fuel injector valve for combustion engines
EP1927748A3 (en) Fuel injector
EP1571328A3 (en) Fuel injection valve
DE102008041594A1 (en) Fuel high pressure pump i.e. plug-in pump, for internal combustion engine, has cylindrical pump housing, piston, conveyor chamber, inlet valve and outlet valve, where outlet valve and piston longitudinal axis are parallel to each other
EP1939441A3 (en) Fuel injector
EP1234976A3 (en) Valve system for regulating the pressure of fuel supply in a combustion engine
DE102012105482A1 (en) Electrohydraulically variable valve lift system
DE102013010232A1 (en) Check valve for a fuel system
EP2166218A3 (en) Fuel injector valve
EP2119903A3 (en) Fuel injector and combustion engine
EP1884637A3 (en) Method for cleaning the combustion chamber and the intake tract of a combustion engine
EP1840352A3 (en) Air intake system and method of operating for a piston engine
EP1967723A3 (en) Valve control unit for ramjet engine and guided missile with such a valve control unit
EP1849976A3 (en) Piston engine
EP1647684A3 (en) Hydrogen engine with optimized fuel injecting device.
EP2458194A3 (en) Fuel injector valve for combustion engines
EP2019198A3 (en) Injector

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC MT NL PL PT RO SE SI SK TR

AX Request for extension of the european patent

Extension state: AL BA HR MK RS

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC MT NL PL PT RO SE SI SK TR

AX Request for extension of the european patent

Extension state: AL BA HR MK RS

AKX Designation fees paid
STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 20090625

REG Reference to a national code

Ref country code: DE

Ref legal event code: 8566