EP2395227A3 - Injection valve - Google Patents

Injection valve Download PDF

Info

Publication number
EP2395227A3
EP2395227A3 EP20110169799 EP11169799A EP2395227A3 EP 2395227 A3 EP2395227 A3 EP 2395227A3 EP 20110169799 EP20110169799 EP 20110169799 EP 11169799 A EP11169799 A EP 11169799A EP 2395227 A3 EP2395227 A3 EP 2395227A3
Authority
EP
European Patent Office
Prior art keywords
injection valve
valve member
pressure
injection
bore
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Withdrawn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
EP20110169799
Other languages
German (de)
French (fr)
Other versions
EP2395227A2 (en
Inventor
Armin Schuelke
Olaf Ohlhafer
Uwe Iben
Robert Giezendanner-Thoben
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 EP2395227A2 publication Critical patent/EP2395227A2/en
Publication of EP2395227A3 publication Critical patent/EP2395227A3/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Withdrawn legal-status Critical Current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
    • F02M51/00—Fuel-injection apparatus characterised by being operated electrically
    • F02M51/06—Injectors peculiar thereto with means directly operating the valve needle
    • F02M51/061—Injectors peculiar thereto with means directly operating the valve needle using electromagnetic operating means
    • F02M51/0625—Injectors peculiar thereto with means directly operating the valve needle using electromagnetic operating means characterised by arrangement of mobile armatures
    • F02M51/0635—Injectors peculiar thereto with means directly operating the valve needle using electromagnetic operating means characterised by arrangement of mobile armatures having a plate-shaped or undulated armature not entering the winding
    • F02M51/0642—Injectors peculiar thereto with means directly operating the valve needle using electromagnetic operating means characterised by arrangement of mobile armatures having a plate-shaped or undulated armature not entering the winding the armature having a valve attached thereto
    • F02M51/0653—Injectors peculiar thereto with means directly operating the valve needle using electromagnetic operating means characterised by arrangement of mobile armatures having a plate-shaped or undulated armature not entering the winding the armature having a valve attached thereto the valve being an elongated body, e.g. a needle valve
    • F02M51/0657—Injectors peculiar thereto with means directly operating the valve needle using electromagnetic operating means characterised by arrangement of mobile armatures having a plate-shaped or undulated armature not entering the winding the armature having a valve attached thereto the valve being an elongated body, e.g. a needle valve the body being hollow and its interior communicating with the fuel flow
    • 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
    • F02M61/00—Fuel-injectors not provided for in groups F02M39/00 - F02M57/00 or F02M67/00
    • F02M61/04—Fuel-injectors not provided for in groups F02M39/00 - F02M57/00 or F02M67/00 having valves, e.g. having a plurality of valves in series
    • F02M61/10—Other injectors with elongated valve bodies, i.e. of needle-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
    • F02M61/00—Fuel-injectors not provided for in groups F02M39/00 - F02M57/00 or F02M67/00
    • F02M61/04—Fuel-injectors not provided for in groups F02M39/00 - F02M57/00 or F02M67/00 having valves, e.g. having a plurality of valves in series
    • F02M61/10—Other injectors with elongated valve bodies, i.e. of needle-valve type
    • F02M61/12—Other injectors with elongated valve bodies, i.e. of needle-valve type characterised by the provision of guiding or centring means for valve bodies

Abstract

Die Erfindung betrifft ein Einspritzventil mit einem Einspritzventilglied (1), das zum Freigeben und Verschließen wenigstens einer Einspritzöffnung (2) in einer Bohrung (3) eines Gehäuseteils (4) hubbeweglich geführt ist, und einem Aktor (5) zur direkten Betätigung des Einspritzventilgliedes (1), wobei das Einspritzventilglied (1) als Hohlnadel ausgebildet ist.The invention relates to an injection valve with an injection valve member (1), which is guided for releasing and closing at least one injection opening (2) in a bore (3) of a housing part (4), and an actuator (5) for direct actuation of the injection valve member ( 1), wherein the injection valve member (1) is designed as a hollow needle.

Erfindungsgemäß bildet die Bohrung (3) zugleich ein Hochdruckführung (6) aus, über welche der wenigstens einen Einspritzöffnung (2) ein unter hohem Druck stehendes Medium zugeführt wird, wobei das als Hohlnadel ausgebildete Einspritzventilglied (1) die Hochdruckführung (6) nach radial innen begrenzt, so dass das Einspritzventilglied (1) im Betrieb des Einspritzventils im Wesentlichen außenumfangseitig von Hochdruck beaufschlagt ist, wobei in axialer Richtung beaufschlagte Flächen einen Druckausgleich bewirken.

Figure imgaf001
According to the invention, the bore (3) at the same time forms a high-pressure guide (6), via which the at least one injection opening (2) is supplied with a medium under high pressure, wherein the injection valve member (1) designed as a hollow needle guides the high-pressure guide (6) radially inward limited, so that the injection valve member (1) is applied in the operation of the injector substantially outer peripheral side of high pressure, wherein acted upon in the axial direction surfaces effect a pressure equalization.
Figure imgaf001
EP20110169799 2010-06-14 2011-06-14 Injection valve Withdrawn EP2395227A3 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE201010030037 DE102010030037A1 (en) 2010-06-14 2010-06-14 Injector

Publications (2)

Publication Number Publication Date
EP2395227A2 EP2395227A2 (en) 2011-12-14
EP2395227A3 true EP2395227A3 (en) 2015-04-22

Family

ID=44650698

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20110169799 Withdrawn EP2395227A3 (en) 2010-06-14 2011-06-14 Injection valve

Country Status (2)

Country Link
EP (1) EP2395227A3 (en)
DE (1) DE102010030037A1 (en)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005264822A (en) * 2004-03-18 2005-09-29 Nippon Soken Inc Fuel injection valve
DE102005013828A1 (en) * 2004-03-29 2005-11-10 Toyota Jidosha K.K., Toyota Fuel injection valve
EP2138709A1 (en) * 2008-06-24 2009-12-30 Robert Bosch GmbH Directly actuated fuel injector

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102008000702A1 (en) 2008-03-17 2009-09-24 Robert Bosch Gmbh injector

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005264822A (en) * 2004-03-18 2005-09-29 Nippon Soken Inc Fuel injection valve
DE102005013828A1 (en) * 2004-03-29 2005-11-10 Toyota Jidosha K.K., Toyota Fuel injection valve
EP2138709A1 (en) * 2008-06-24 2009-12-30 Robert Bosch GmbH Directly actuated fuel injector

Also Published As

Publication number Publication date
EP2395227A2 (en) 2011-12-14
DE102010030037A1 (en) 2011-12-15

Similar Documents

Publication Publication Date Title
DE102007035698A1 (en) Fuel injection valve with improved tightness at the sealing seat of a pressure-balanced control valve
EP2386746A3 (en) Fuel injector
WO2015067562A4 (en) Locking device for a door or flap
EP2177748A3 (en) Injection device
EP2466112A3 (en) Pulsation dampener
EP2503086A3 (en) Drive circuit sub-assembly for a vehicle door
EP2694796B1 (en) Pressure relief valve for common rail heavy oil injection systems
EP2395227A3 (en) Injection valve
EP2298940B1 (en) Automatic frettage (interference fit) device for high pressure components, particularly for pipelines
DE102011004640A1 (en) Control valve for a fuel injector and fuel injector
EP2161459A3 (en) Drive device for a door and method for operating the same
EP2439397A3 (en) Fuel injector
EP2743493A3 (en) Fuel injector
EP2354526A3 (en) Fuel injector
EP2428672A3 (en) Fuel injector
EP3336350B1 (en) Arrangement for partial treatment of materials and method for interrupting a fluid flow
EP2354527A3 (en) Fuel injector
EP3097302B1 (en) Fuel injector
EP2824310B1 (en) Fuel injector valve for combustion engines
EP2905669A3 (en) Pressure control valve
EP2522438A3 (en) Closure and expression plunger for cartridges for plastic masses and method for inserting such a plunger into a cartridge
DE102008043088A1 (en) Valve, particularly electromagnetic valve, for gaseous medium, particularly gas valve for gas tank, particularly motor vehicle gas tank, is provided with valve opening surrounding valve seat, and single stroke-operated valve member
DE102007062792A1 (en) Fuel injection valve for high-speed internal-combustion engine, has valve needle guided into guide sleeve at needle end turned away from valve seat and having outer side, with which sleeve is guided into inner side of pressure chamber
EP2383038A3 (en) Method for operating a jigging machine
WO2015106934A1 (en) Fuel injector

Legal Events

Date Code Title Description
AK Designated contracting states

Kind code of ref document: A2

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

AX Request for extension of the european patent

Extension state: BA ME

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

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

AX Request for extension of the european patent

Extension state: BA ME

RIC1 Information provided on ipc code assigned before grant

Ipc: F02M 51/06 20060101AFI20150313BHEP

Ipc: F02M 61/10 20060101ALI20150313BHEP

Ipc: F02M 61/12 20060101ALI20150313BHEP

17P Request for examination filed

Effective date: 20151022

RBV Designated contracting states (corrected)

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

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: 20151023