WO2008046819A3 - Method for the individual adjustment of the idle stroke of an actuator of a metering valve - Google Patents

Method for the individual adjustment of the idle stroke of an actuator of a metering valve Download PDF

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Publication number
WO2008046819A3
WO2008046819A3 PCT/EP2007/061010 EP2007061010W WO2008046819A3 WO 2008046819 A3 WO2008046819 A3 WO 2008046819A3 EP 2007061010 W EP2007061010 W EP 2007061010W WO 2008046819 A3 WO2008046819 A3 WO 2008046819A3
Authority
WO
WIPO (PCT)
Prior art keywords
actuator
idle stroke
metering valve
individual adjustment
stroke
Prior art date
Application number
PCT/EP2007/061010
Other languages
German (de)
French (fr)
Other versions
WO2008046819A2 (en
Inventor
Rene Boehm
Udo Kreissig
Peter Voigt
Original Assignee
Continental Automotive Gmbh
Rene Boehm
Udo Kreissig
Peter Voigt
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 Continental Automotive Gmbh, Rene Boehm, Udo Kreissig, Peter Voigt filed Critical Continental Automotive Gmbh
Priority to DE112007002485T priority Critical patent/DE112007002485A5/en
Publication of WO2008046819A2 publication Critical patent/WO2008046819A2/en
Publication of WO2008046819A3 publication Critical patent/WO2008046819A3/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
    • 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
    • F02M63/0026—Valves characterised by the valve actuating means electrical, e.g. using solenoid using piezoelectric or magnetostrictive actuators
    • 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
    • F02D41/20—Output circuits, e.g. for controlling currents in command coils
    • F02D41/2096—Output circuits, e.g. for controlling currents in command coils for controlling piezoelectric injectors
    • 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
    • F02M61/16—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
    • 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
    • F02M61/167—Means for compensating clearance or thermal expansion

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Fuel-Injection Apparatus (AREA)

Abstract

The invention relates to a method for adjusting an idle stroke (hL) of an actuator (30), preferably a piezoelectric actuator (30), in a metering valve (1), particularly a fuel injector (1) or a head assembly (3) of a fuel injector (1), wherein an idle stroke (hL) of the actuator (30), associated to a activation reference voltage (U10) required for a predefined reference stroke (h10) of the actuator (30), is adjusted in the metering valve (1) in such a way that the idle stroke (hL) is selected to be so much larger than the activation reference voltage (U10) is low.
PCT/EP2007/061010 2006-10-20 2007-10-16 Method for the individual adjustment of the idle stroke of an actuator of a metering valve WO2008046819A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE112007002485T DE112007002485A5 (en) 2006-10-20 2007-10-16 Method for individual Leerhubeinstellung an actuator of a metering valve

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102006049564 2006-10-20
DE102006049564.0 2006-10-20

Publications (2)

Publication Number Publication Date
WO2008046819A2 WO2008046819A2 (en) 2008-04-24
WO2008046819A3 true WO2008046819A3 (en) 2008-07-17

Family

ID=39203277

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2007/061010 WO2008046819A2 (en) 2006-10-20 2007-10-16 Method for the individual adjustment of the idle stroke of an actuator of a metering valve

Country Status (2)

Country Link
DE (1) DE112007002485A5 (en)
WO (1) WO2008046819A2 (en)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10340975A1 (en) * 2003-09-05 2005-03-31 Robert Bosch Gmbh Method for control of adjustment member, e.g. for piezoactor driven fuel injection valve, in which reference stroke of fuel injection valve can be attained by engagement of piezoactor by reference charge
WO2005108774A1 (en) * 2004-05-10 2005-11-17 Siemens Aktiengesellschaft Fuel injector featuring corrigible adjustment of an empty stroke of an actuator unit
DE102005040534A1 (en) * 2005-08-26 2007-03-01 Siemens Ag Injection valve manufacturing method for internal combustion engine, involves determining parameter for controlling valve so that one of the determined values/time points is represented and adjusted when other value/time point is adjusted

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10340975A1 (en) * 2003-09-05 2005-03-31 Robert Bosch Gmbh Method for control of adjustment member, e.g. for piezoactor driven fuel injection valve, in which reference stroke of fuel injection valve can be attained by engagement of piezoactor by reference charge
WO2005108774A1 (en) * 2004-05-10 2005-11-17 Siemens Aktiengesellschaft Fuel injector featuring corrigible adjustment of an empty stroke of an actuator unit
DE102005040534A1 (en) * 2005-08-26 2007-03-01 Siemens Ag Injection valve manufacturing method for internal combustion engine, involves determining parameter for controlling valve so that one of the determined values/time points is represented and adjusted when other value/time point is adjusted

Also Published As

Publication number Publication date
DE112007002485A5 (en) 2009-09-17
WO2008046819A2 (en) 2008-04-24

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