EP1307647A1 - Soupape d'injection de carburant et son procede de reglage - Google Patents

Soupape d'injection de carburant et son procede de reglage

Info

Publication number
EP1307647A1
EP1307647A1 EP01956339A EP01956339A EP1307647A1 EP 1307647 A1 EP1307647 A1 EP 1307647A1 EP 01956339 A EP01956339 A EP 01956339A EP 01956339 A EP01956339 A EP 01956339A EP 1307647 A1 EP1307647 A1 EP 1307647A1
Authority
EP
European Patent Office
Prior art keywords
sleeve
fuel injection
injection valve
fuel
flow rate
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Withdrawn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
EP01956339A
Other languages
German (de)
English (en)
Inventor
Heinz Luft
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 EP1307647A1 publication Critical patent/EP1307647A1/fr
Withdrawn legal-status Critical Current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
    • 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
    • F02M61/20—Closing valves mechanically, e.g. arrangements of springs or weights or permanent magnets; Damping of valve lift
    • F02M61/205—Means specially adapted for varying the spring tension or assisting the spring force to close the injection-valve, e.g. with damping of 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
    • 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
    • F02M51/0664—Injectors peculiar thereto with means directly operating the valve needle using electromagnetic operating means characterised by arrangement of mobile armatures having a cylindrically or partly cylindrically shaped armature, e.g. entering the winding; having a plate-shaped or undulated armature entering the winding
    • F02M51/0671—Injectors peculiar thereto with means directly operating the valve needle using electromagnetic operating means characterised by arrangement of mobile armatures having a cylindrically or partly cylindrically shaped armature, e.g. entering the winding; having a plate-shaped or undulated armature entering the winding the armature having an elongated valve body attached thereto
    • 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
    • F02M61/168—Assembling; Disassembling; Manufacturing; Adjusting
    • 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
    • F02M2200/00—Details of fuel-injection apparatus, not otherwise provided for
    • F02M2200/31—Fuel-injection apparatus having hydraulic pressure fluctuations damping elements
    • F02M2200/315—Fuel-injection apparatus having hydraulic pressure fluctuations damping elements for damping fuel pressure fluctuations
    • 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
    • F02M2200/50—Arrangements of springs for valves used in fuel injectors or fuel injection pumps
    • F02M2200/505—Adjusting spring tension by sliding spring seats
    • 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
    • F02M2200/50—Arrangements of springs for valves used in fuel injectors or fuel injection pumps
    • F02M2200/507—Adjusting spring tension by screwing spring seats
    • 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
    • F02M61/165—Filtering elements specially adapted in fuel inlets to injector

Definitions

  • a method for adjusting a fuel injector and a fuel injector is known.
  • a magnetically conductive material that changes the magnetic properties of the inner pole is introduced into a blind hole, for example in the form of a powder, and the magnetic force thus varies until the measured actual flow rate of the medium matches the specified target flow rate.
  • DE 40 23 826 AI it is proposed in DE 40 23 826 AI to insert a balancing bolt into a blind hole of an inner pole, which has a recess on its circumference, and thus to vary the magnetic force until the measured actual quantity with the predetermined target quantity matches.
  • DE 195 16 513 AI is a method for adjusting the dynamic flow rate .
  • a fuel injector known.
  • An adjustment element takes place, which is arranged near the solenoid outside the medium flow path.
  • the size of the magnetic flux in the magnetic circuit changes and thus the magnetic force, so that the flow rate can be influenced and set.
  • the setting can be made both with a wet and with a dry fuel injection valve.
  • DE 42 11 723 AI proposes a fuel injection valve or a method for adjusting the dynamic flow rate of a fuel injection valve, in which an adjusting sleeve having a longitudinal slot is pressed into a longitudinal bore of a connecting piece up to a predetermined insertion depth, the dynamic actual flow rate of the valve is measured and compared with a target flow rate and the pressed-in adjusting sleeve, which is under a tension acting in the radial direction, is advanced until the measured actual flow rate matches the predetermined target flow rate.
  • DE 44 31 128 AI takes place to adjust the dynamic flow rate of a fuel injector, a deformation of the valve housing by the engagement of a deformation tool on the outer circumference of the valve housing.
  • the size of the residual air gap between the core and the armature changes and thus the magnetic force so that the flow rate can be influenced and set.
  • Another advantage is the configuration of the inlet-side recess of the sleeve, for example in the form of a hexagon socket, which is designed in such a way that an adjusting tool which is connected in rotation with the sleeve does not act on the annular soft metal insert.
  • FIG. 2A shows an excerpted schematic section through a first exemplary embodiment of the fuel injection valve according to the invention approximately in the region II in FIG. 1 before the implementation of a first adjustment method according to the invention
  • FIG. 3A shows an excerpted schematic section through a third exemplary embodiment of the fuel injection valve according to the invention in area II in FIG. 1 before carrying out a first method step of a second setting method according to the invention
  • the fuel injector 1 is in the form of a fuel injector for fuel injection systems. made by mixture-compressing, spark-ignited internal combustion engines. ⁇ That
  • Fuel injection valve 1 is particularly suitable for injecting fuel directly into a combustion chamber (not shown) of an internal combustion engine.
  • FIG. 2C shows an embodiment variant of the sleeve 24 after the stamping process, in which case an annular insert 39, which is preferably made of soft metal, is inserted into the inlet-side end 43 of the sleeve 24.
  • This embodiment variant has the advantage that the sleeve 24 does not have to consist entirely of a deformable soft metal, but can be made of a stable metal, whereby the stability of the sleeve 24 against deformation is maintained.
  • the throttle point 40 is thus formed by the annular insert 39, so that the sleeve 24 is cylindrical with a zylinderför ige flow channel 46.
  • the sleeve 24 has an inlet-side recess 46a and an outlet-side recess 46b, between which the throttle point 40 is formed.
  • the sleeve 24 is provided with an external thread 49, which interacts with an internal thread 50 of the central recess 47 of the fuel injection valve 1.
  • the sleeve 24 is over the ⁇ thread 49 and Thread 50 is screwed into the central recess 47 of the fuel injection valve 1.
  • the inlet-side recess 46a of the sleeve 24 is designed such that a corresponding adjusting tool 52 can be brought into rotary connection with the sleeve 24.
  • the inlet-side recess 46a can have, for example, an internal hexagon profile or an internal triangular profile.
  • an intermediate ring 48 is inserted between the sleeve 24 and the return spring 23, on which the return spring 23 is supported. This measure prevents, when the sleeve 24 is screwed into the central recess 47, metal chips from detaching from the wall of the central recess 47 by rotating the return spring 23 and clogging the fuel channels 30a to 30c and the spray opening 7.
  • the invention is not limited to the illustrated embodiments and z. B. also suitable for fuel injection valves 1 with piezoelectric or magnetostrictive actuators. Furthermore, the invention can also be used for the production of non-adjustable hydraulic and pneumatic throttles.

Landscapes

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

Abstract

La présente invention concerne une soupape d'injection de carburant (1) destinée à des installations d'injection de carburant de moteurs à combustion interne. Cette soupape permet notamment l'injection directe de carburant dans la chambre de combustion d'un moteur à combustion interne. Cette soupape comprend un actionneur (10), un pointeau de soupape (3), qui coopère avec l'actionneur (10), est sollicité par un ressort de rappel (23) dans une direction de fermeture et permet d'actionner un élément de fermeture de soupape (4), qui, avec une surface de siège de soupape (6), forme un siège d'étanchéité, ainsi qu'une douille (24), qui exerce une précontrainte sur le ressort de rappel (23). Cette douille (24) est à déformation plastique et une intervention mécanique peut par conséquent permettre de modifier la section transversale d'un canal d'écoulement (46) de cette douille.
EP01956339A 2000-08-02 2001-07-18 Soupape d'injection de carburant et son procede de reglage Withdrawn EP1307647A1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10037570A DE10037570A1 (de) 2000-08-02 2000-08-02 Brennstoffeinspritzventil und Verfahren zu dessen Einstellung
DE10037570 2000-08-02
PCT/DE2001/002699 WO2002010583A1 (fr) 2000-08-02 2001-07-18 Soupape d'injection de carburant et son procede de reglage

Publications (1)

Publication Number Publication Date
EP1307647A1 true EP1307647A1 (fr) 2003-05-07

Family

ID=7651019

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01956339A Withdrawn EP1307647A1 (fr) 2000-08-02 2001-07-18 Soupape d'injection de carburant et son procede de reglage

Country Status (5)

Country Link
US (1) US20030094513A1 (fr)
EP (1) EP1307647A1 (fr)
JP (1) JP2004505204A (fr)
DE (1) DE10037570A1 (fr)
WO (1) WO2002010583A1 (fr)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10122353B4 (de) 2001-05-09 2004-04-22 Robert Bosch Gmbh Brennstoffeinspritzventil
DE10130239A1 (de) 2001-06-22 2003-01-02 Bosch Gmbh Robert Brennstoffeinspritzventil und Verfahren zu dessen Einstellung
EP1741925A1 (fr) * 2005-07-05 2007-01-10 Siemens Aktiengesellschaft Soupape d'injection de fluide
EP2000662B1 (fr) 2007-06-04 2012-03-14 Continental Automotive GmbH Réglage et agencement de filtre pour soupape d'injection, et soupape d'injection
US7942132B2 (en) 2008-07-17 2011-05-17 Robert Bosch Gmbh In-line noise filtering device for fuel system
DE102012002061A1 (de) * 2012-02-03 2013-08-08 Emitec Gesellschaft Für Emissionstechnologie Mbh Dosierventil für einfriergefährdete Additive
DE102013225834A1 (de) * 2013-12-13 2015-06-18 Robert Bosch Gmbh Brennstoffeinspritzventil
DE102015217673A1 (de) 2015-09-15 2017-03-16 Continental Automotive Gmbh Einspritzvorrichtung zur Zumessung eines Fluids und Kraftfahrzeug mit einer derartigen Einspritzvorrichtung
US10227906B2 (en) * 2016-07-21 2019-03-12 Continental Powertrain USA, LLC Diesel exhaust fluid injector calibration freeze protection insert
EP3309384B1 (fr) * 2016-10-12 2020-08-26 Vitesco Technologies GmbH Dispositif anti-retour pour soupape d'injection et ladite soupape
US10539057B2 (en) * 2017-09-14 2020-01-21 Vitesco Technologies USA, LLC Injector for reductant delivery unit having reduced fluid volume
DE102017221203A1 (de) * 2017-11-27 2019-05-29 Hyundai Motor Company Kraftstoffeinspritzsystem und Verfahren zum Betreiben eines Kraftstoffeinspritzsystems
US10947880B2 (en) * 2018-02-01 2021-03-16 Continental Powertrain USA, LLC Injector for reductant delivery unit having fluid volume reduction assembly

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1122430B (it) * 1979-08-03 1986-04-23 Alfa Romeo Spa Elettroiniettore a transitori rapidi
DE3864772D1 (de) * 1987-07-21 1991-10-17 Nippon Denso Co Verfahren zum einstellen der brennstoffeinspritzmenge eines elektromagnetischen brennstoffeinspritzventils.
DE4023828A1 (de) * 1990-07-27 1992-01-30 Bosch Gmbh Robert Verfahren zur einstellung eines ventils und ventil
DE4023826A1 (de) * 1990-07-27 1992-01-30 Bosch Gmbh Robert Verfahren zur einstellung eines ventils und ventil
DE4109868A1 (de) * 1991-03-26 1992-10-01 Bosch Gmbh Robert Einstellbuchse fuer ein elektromagnetisch betaetigbares ventil und verfahren zur herstellung
DE4123787A1 (de) * 1991-07-18 1993-01-21 Bosch Gmbh Robert Verfahren zur einstellung eines brennstoffeinspritzventils und brennstoffeinspritzventil
DE4211723A1 (de) * 1992-04-08 1993-04-15 Bosch Gmbh Robert Verfahren zur herstellung und verfahren zur einstellung eines ventils
JP2668767B2 (ja) * 1993-09-08 1997-10-27 株式会社ケーヒン 電磁燃料噴射弁における燃料噴射量調整方法
JP2849793B2 (ja) * 1993-09-08 1999-01-27 株式会社ケーヒン 電磁燃料噴射弁及び電磁燃料噴射弁における燃料噴射量調整方法
DE4431128A1 (de) * 1994-09-01 1996-03-07 Bosch Gmbh Robert Verfahren zur Einstellung eines Ventils und Ventil
DE19516513A1 (de) * 1995-05-05 1996-11-07 Bosch Gmbh Robert Verfahren zur Einstellung eines Ventils und Ventil

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO0210583A1 *

Also Published As

Publication number Publication date
US20030094513A1 (en) 2003-05-22
DE10037570A1 (de) 2002-02-14
JP2004505204A (ja) 2004-02-19
WO2002010583A1 (fr) 2002-02-07

Similar Documents

Publication Publication Date Title
EP1303697B1 (fr) Soupape d'injection de carburant
DE3723698A1 (de) Kraftstoffeinspritzventil sowie verfahren zu dessen einstellung
EP1309793A1 (fr) Soupape d'injection de carburant
EP1307647A1 (fr) Soupape d'injection de carburant et son procede de reglage
DE2943155C2 (fr)
DE68913209T2 (de) Elektrisch betätigbares ventil für kraftstoff-einspritzanlagen für brennkraftmaschinen.
EP1332280B1 (fr) Soupape d'injection de carburant et procede de reglage
EP1350025B1 (fr) Liaison entre un induit et un pointeau de soupape d'une soupape d'injection de carburant
EP1402171B1 (fr) Soupape d'injection de carburant et procede de reglage
DE4431128A1 (de) Verfahren zur Einstellung eines Ventils und Ventil
WO2002095215A1 (fr) Soupape d'injection de carburant
EP1327070B1 (fr) Soupape d'injection de carburant
EP1195516B1 (fr) Soupape d'injection de combustible
EP1309790B1 (fr) Soupape d'injection de carburant
EP1688612A1 (fr) Injecteur de carburant
WO2003062629A1 (fr) Soupape electromagnetique et son procede de realisation
WO2002092995A1 (fr) Soupape d'injection de carburant
WO2003001052A1 (fr) Soupape d'injection de carburant
EP1308618B1 (fr) Soupape d'injection de carburant
WO2002061270A1 (fr) Soupape d'injection de combustible
EP1300583A2 (fr) Soupape d'injection de combustible
DE102004043707A1 (de) Brennstoffeinspritzventil
DE10037480A1 (de) Brennstoffeinspritzventil
EP1312794A1 (fr) Injecteur de carburant

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

17P Request for examination filed

Effective date: 20030303

AK Designated contracting states

Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR

RIN1 Information on inventor provided before grant (corrected)

Inventor name: LUFT, HEINZ

RBV Designated contracting states (corrected)

Designated state(s): DE FR GB IT

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: 20050201