ATE402336T1 - FLUID INJECTION VALVE - Google Patents

FLUID INJECTION VALVE

Info

Publication number
ATE402336T1
ATE402336T1 AT04703786T AT04703786T ATE402336T1 AT E402336 T1 ATE402336 T1 AT E402336T1 AT 04703786 T AT04703786 T AT 04703786T AT 04703786 T AT04703786 T AT 04703786T AT E402336 T1 ATE402336 T1 AT E402336T1
Authority
AT
Austria
Prior art keywords
injection valve
valve
valve needle
needle
injection
Prior art date
Application number
AT04703786T
Other languages
German (de)
Inventor
Heribert Geisser
Peter Affolter
Original Assignee
Dualon Internat Holding Sa
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 Dualon Internat Holding Sa filed Critical Dualon Internat Holding Sa
Application granted granted Critical
Publication of ATE402336T1 publication Critical patent/ATE402336T1/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
    • F02M61/00—Fuel-injectors not provided for in groups F02M39/00 - F02M57/00 or F02M67/00
    • F02M61/16—Details not provided for in, or of interest apart from, the apparatus of groups F02M61/02 - F02M61/14
    • F02M61/161—Means for adjusting injection-valve lift
    • 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
    • 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

Disclosed is a liquid injection valve (1), particularly for internal combustion engines, comprising an injection valve (2) that is to be opened and closed by means of an injection valve needle (4) for injecting liquid, said injection valve needle being movable via a pilot valve (3). The pilot valve (3) encompasses a valve housing (10) with flow channels, a pressure chamber (23) located adjacent to the injection valve needle (4) in an axial direction for controlling the axial movement of the injection valve needle (4), and a self-centering valve member (11, 20, 25) for opening and closing a discharge duct (24) of the pressure chamber (23). The injection valve needle can be controlled with precision by means of the valve member which preferably comprises a ball (25) and a valve needle (11).
AT04703786T 2004-01-21 2004-01-21 FLUID INJECTION VALVE ATE402336T1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/EP2004/000434 WO2005071253A1 (en) 2004-01-21 2004-01-21 Liquid injection valve

Publications (1)

Publication Number Publication Date
ATE402336T1 true ATE402336T1 (en) 2008-08-15

Family

ID=34802723

Family Applications (1)

Application Number Title Priority Date Filing Date
AT04703786T ATE402336T1 (en) 2004-01-21 2004-01-21 FLUID INJECTION VALVE

Country Status (4)

Country Link
EP (1) EP1706631B1 (en)
AT (1) ATE402336T1 (en)
DE (1) DE502004007701D1 (en)
WO (1) WO2005071253A1 (en)

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3584554B2 (en) * 1995-07-26 2004-11-04 株式会社デンソー Accumulation type fuel injection device
US5626325A (en) * 1995-09-14 1997-05-06 Cummins Engine Company, Inc. High pressure control valve for a fuel injection system
DE29723706U1 (en) 1997-04-26 1999-06-10 Dualon International S A Hydraulic servo control
DE19937559A1 (en) * 1999-08-09 2001-03-01 Bosch Gmbh Robert Two-stage solenoid valve in a compact design for an injector of an injection system for internal combustion engines
DE19958239A1 (en) * 1999-12-03 2001-06-21 Siemens Ag Hydraulic valve for IC engine fuel injection valve
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

Also Published As

Publication number Publication date
WO2005071253A1 (en) 2005-08-04
DE502004007701D1 (en) 2008-09-04
EP1706631A1 (en) 2006-10-04
EP1706631B1 (en) 2008-07-23

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Legal Events

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