EP1567765B1 - Soupape d'injection - Google Patents

Soupape d'injection Download PDF

Info

Publication number
EP1567765B1
EP1567765B1 EP03799426A EP03799426A EP1567765B1 EP 1567765 B1 EP1567765 B1 EP 1567765B1 EP 03799426 A EP03799426 A EP 03799426A EP 03799426 A EP03799426 A EP 03799426A EP 1567765 B1 EP1567765 B1 EP 1567765B1
Authority
EP
European Patent Office
Prior art keywords
throttle
nozzle
valve
module
injection valve
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.)
Expired - Lifetime
Application number
EP03799426A
Other languages
German (de)
English (en)
Other versions
EP1567765A1 (fr
Inventor
Edgar Schneider
Thomas Koeppel
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 EP1567765A1 publication Critical patent/EP1567765A1/fr
Application granted granted Critical
Publication of EP1567765B1 publication Critical patent/EP1567765B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

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
    • F02M61/04—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
    • 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
    • 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
    • F02M2200/70—Linkage between actuator and actuated element, e.g. between piezoelectric actuator and needle valve or pump plunger
    • F02M2200/703—Linkage between actuator and actuated element, e.g. between piezoelectric actuator and needle valve or pump plunger hydraulic
    • 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
    • F02M2547/00—Special features for fuel-injection valves actuated by fluid pressure
    • F02M2547/003—Valve inserts containing control chamber and valve piston

Definitions

  • the invention relates to an injection valve with a valve control module and a nozzle module according to the closer defined in the preamble of claim 1, such. shown in DE 101 39 622.
  • Such injectors are well known in practice and are used in particular in conjunction with common rail injection systems for diesel internal combustion engines.
  • a known from the art injection valve of the aforementioned type has a nozzle body of a nozzle module in which a nozzle needle is guided axially displaceable for opening and closing of the injection valve.
  • the nozzle body is provided with a plurality of injection openings, which can be controlled by means of the axially displaceable nozzle needle.
  • the injection valve is designed with a valve control module which has a module housing and a piezoelectric actuator module arranged thereon, which are operatively connected to the nozzle module via a valve control chamber in a manner known per se.
  • the piezoelectric actuator module is adjoined by a valve member arrangement, via which a travel of the piezoelectric actuator module is transferred to a valve closing member.
  • the valve member arrangement has a first piston, a so-called actuating piston, and a second piston, a so-called actuating piston, between which a hydraulic transmission device or a hydraulic coupler is arranged.
  • the hydraulic coupler also serves to compensate for axial length differences caused by temperature differences.
  • the nozzle needle is actuated by means of the valve control module via pressure changes in the so-called valve control chamber, wherein the pressure changes in the valve control chamber lead to an axial displacement of the nozzle needle, which in turn are released or closed to the combustion chamber of the engine leading injection openings of the nozzle body.
  • the pressure in the valve control chamber is set via two throttles opening into the valve control chamber, wherein an outlet throttle in a throttle plate and an inlet throttle is formed in a valve control space limiting and the nozzle needle enclosing sleeve.
  • Object of the present invention is therefore to provide an injection valve that is simple and inexpensive to produce.
  • a tuning required for the desired operation of the injector between the opening pressure of the injector module and the relationship between the throttling effects of the two throttles of the valve control chamber is determined by measuring the opening pressure in a measuring device and the defined pair of a component, i. throttle plate, performed in a simple manner.
  • Such throttle plates or throttle disks which are designed simultaneously with the inlet throttle and the outlet throttle for the valve control chamber, are advantageously produced in a contiguous production section.
  • an injection valve according to the invention over known from practice injectors has the advantage on that a vote is made with respect to the diameter ratio between the diameter of the inlet throttle and the diameter of the outlet throttle with only a single component.
  • the arrangement of the inlet throttle in the elevation of the throttle plate compared to a known from practice injection valve has no significant change in the position of the inlet throttle result, so that a known structural design of an injection valve executed only with an inventive Throttle plate and must be provided with an adapted to the throttle plate according to the invention intermediate element to obtain an injection valve according to the invention.
  • FIG. 1 shows an injection valve 1 with a valve control module 2 and a nozzle module 3.
  • the valve control module 2 is formed with an actuator module 4 only partially shown, wherein the actuator module 4 is a piezoelectric actuator unit.
  • a valve member assembly 5 which has an actuating piston 6 and an actuating piston 7, wherein between these two pistons 6, 7 acting as a hydraulic coupler or hydraulic ratio and as a compensation element of temperature-induced variations in length of the injection valve 1 hydraulic chamber 8 is provided.
  • the injection valve 1 is designed with a high-pressure region or a high-pressure connection 9, via which a channel 11 extending in components 10A, 10B of the valve control module 2 is supplied with fuel under common-rail high pressure, which is supplied to the nozzle module 3, wherein the Common rail pressure can take up to 1.6 kbar.
  • the injection valve 1 is presently provided in a conventional manner with a pressure limiting valve, not shown, via which a system pressure of a low pressure region 30 of the injection valve 1 is set.
  • the system pressure of the injection valve 1 is preferably less than 30 bar, wherein the height of the system pressure in each case depending on the present application is set to a required and on the operation of the injector positively acting value via the pressure relief valve.
  • the nozzle module 3 is designed with a nozzle needle 12 which is arranged axially displaceably in a nozzle body 13.
  • the nozzle body 13 rests against a throttle plate 14 of the valve control module 2 as shown in FIG. 1 and is firmly connected to the valve control module 2 via a nozzle clamping nut 15.
  • the nozzle needle 12 acts at its end facing away from the valve control module 2 with a valve seat 16 of the nozzle body 13 such that when a lifting of the nozzle needle 12 of the valve seat 16 injection openings 17 of the nozzle body 13 are released and an injection of fuel into a combustion chamber of an internal combustion engine ,
  • the nozzle needle 12 is moved in the nozzle body 13 against a force acting on the nozzle needle 12 in the closing direction of the nozzle needle 12 spring force of a spring 18 of the valve seat 16 in the direction of the valve control module 2 and the throttle plate 14.
  • the spring 18 is supported with its end facing away from the valve control module 2 via a disc 19 on a shoulder 20 of the nozzle needle 12 from. At its end facing the valve control module 2, the spring 18 bears against an intermediate element or a so-called spring plate 21, which in turn is supported on the throttle plate 14.
  • the behavior of the spring 18 can be influenced depending on the thickness of the disk 19, so that during the assembly of the injection valve 1, a defined selection of a plurality of classified classified discs 19 can be made to compensate for manufacturing tolerances.
  • the nozzle needle 12, the spring plate 21 and the throttle plate 14 define a valve control chamber 22, in which present in each case an inlet throttle 23 and an outlet throttle 24 open, both of which are arranged in the throttle plate 14.
  • FIG. 2 shows the region X of the injection valve 1 marked in FIG. 1 in an enlarged view.
  • the throttle plate 14 on its nozzle module 3 side facing a closed circumferential and an interior 25 bounding survey 26 which defines the valve control chamber 22 together with the spring plate 21 and an end portion 12A of the nozzle needle 12.
  • the survey is in the present case designed as an annular collar 26 which rises above a nozzle module 3 facing the end face 27 of the throttle plate 14 in the direction of the spring 18.
  • the inlet throttle 23 is disposed in the annular collar 26, whereby the high pressure region 9 of the injection valve 1, which surrounds the spring plate 21, is connected to the valve control chamber 22 via the inlet throttle 23. Furthermore, the outlet throttle 24 branches off from the valve control chamber 22 or from the interior 25 of the annular collar 26 in the direction of the low-pressure region 30 of the injection valve 1.
  • a minimum distance of a center line 44 of the inlet throttle 23 in the annular collar 26 from the end face 27 of the throttle plate 14 should not be less than 2 mm in order to provide sufficient space for an electrode guide during erosion for introducing the inlet throttle 23 in the annular collar 26 ,
  • the size of the diameter of the inlet throttle 23 is preferably in a range of 0.15 to 0.25 mm, wherein the diameter of the inlet throttle in the present case is 0.2 mm.
  • a the spring plate 21 facing end face 28 of the annular collar 26 is designed conically with respect to a throttle plate 14 facing surface 29 of the spring plate 21 in cross-section such that upon contact of the spring plate 21 on the annular collar 26 between these two components is a line contact, which for a seal of the valve control chamber 21 with respect to the high-pressure region 8 is particularly advantageous.
  • the system of the spring plate 21 on the annular collar 26 is effected by the spring 18, which presses the spring plate 21 due to their biased mounting position against the annular collar 26.
  • the end portion 12A of the nozzle needle 12, which is axially displaceably guided in a guide 41 of the spring plate 21, is designed with a smaller diameter than a region of the nozzle needle 12 which lies outside of the spring plate and is surrounded by the spring 18.
  • This gradation of the nozzle needle 12 on the side facing away from the throttle plate 14 of the spring plate 21 designed a paragraph 32, the Hubwegbegrenzung for the nozzle needle 12 during a movement the nozzle needle 12 in the opening direction of the nozzle module 3 and the injection valve 1 represents.
  • a recess 33 is formed in the end face 27 of the throttle plate 14, which is provided, inter alia, that the end face 27 of the throttle plate 14 with a grinding tool in the area near the annular collar 26 can be edited.
  • the valve member assembly 5 is controlled via the actuator module 4, which is arranged on the valve control chamber and combustion chamber side facing away from the valve member assembly 5.
  • the piezoelectric actuator of the Aktormodules 4, not shown, is constructed in a conventional manner of several ceramic layers and has on its valve member assembly 5 side facing an actuator head 42 and on its valve member assembly 5 side facing away from a non-illustrated Actuator foot on, which is connected to a Wall of a valve housing of the injection valve 1 is supported.
  • a control chamber 34 of the injection valve 1 is separated from the low-pressure region 30.
  • a valve element 35 of a control valve 36 is arranged, which sealingly abuts when not energized actuator module 4 to a first control valve seat 37 which is formed in the component 10A of the valve control module 2.
  • the connection between the control chamber 34 and the valve control chamber 22 via the outlet throttle 24 is opened, since the valve element 35 is pressed by a spring device and prevailing in the control chamber 34 pressure against the first control valve seat 37.
  • the valve element 35, the piezoelectric actuator is not energized and the injection valve 1 is closed by contact of the nozzle needle 12 to the valve seat 16 of the nozzle body 13.
  • the actuator module 4 or its piezoelectric ceramic is energized, the length of the piezoelectric ceramic is increased due to the piezoelectric effect. This elongation is transmitted from the valve member assembly in a conventional manner to the valve member 35, so that the valve element 35 is lifted from the first control valve seat 37 and in the direction of a second control valve seat 38, on the control chamber 34 side facing the Throttle plate 14 is formed, axially displaced.
  • the high-pressure region 9 is connected to the low-pressure region 30 via the valve control chamber 22 and the control chamber 34, and the pressure of the valve control chamber 22 is reduced via the outlet throttle 24 in the direction of the low-pressure region 30. Due to the pressure and the area ratios in the nozzle module 3, the nozzle needle 12 lifts off from the valve seat 16 of the nozzle body 13.
  • valve member 35 is sealingly applied either to the first control valve seat 37 or the second control valve seat 38, so that the connection between the valve control chamber 22 and the low-pressure region 30 is closed.
  • the energization of the actuator module 4 is interrupted; whereby the elongation of the piezoelectric ceramic of the Aktormodules regresses.
  • This is an axial adjustment of the valve member assembly 5 in the direction of the Aktormodules 4 accompanied and the valve member 35 is due to a force acting in the direction of the first control valve seat 37 on the valve element 35 spring force of a spring element 43 and the pressure of the control chamber 34 in turn sealingly against the first control valve seat 37 pressed.
  • the connection between the valve control chamber 22 and the low pressure region 30 is closed, so that the pressure in the valve control chamber 22 via the inlet throttle 23 builds up, which leads in the manner described above to a closing of the injection valve 1.
  • the closing of the injection valve 1 by contact of the valve member 35 to the first control valve seat 37 is preferably used when an injection phase is completed in a combustion chamber of an internal combustion engine and preferably no further injections follow in this injection phase.
  • the closing of the injection valve 1 by the contact of the valve member 35 to the second control valve seat 37 is preferred during an injection phase, which is composed of a plurality of short-term successive injections.
  • the nozzle needle 12 is longitudinally movably guided in a guide 40 of the nozzle body 13 and in the guide 41 of the spring plate 21, wherein the two guides 40 and 41 are matched to the axial mobility of the nozzle needle 12 by a possible malposition of the nozzle needle 12, which would lead to increased frictional forces between the nozzle needle 12 and the nozzle body 13 and the spring plate 21, to avoid.
  • the guide 41 of the spring plate 21 is designed to be relatively short in the axial direction of the injection valve 1, resulting in a cost advantage in the production compared to known from practice sleeve-like design and formed with longer guide areas components.
  • the throttle plate 14 with the inlet throttle 23 and the outlet throttle 24 represents a prefabricated classified disc, which is designed with a defined diameter ratio between a diameter of the inlet throttle 23 and a diameter of the outlet throttle 24, the proper functioning of the Injector 1 ensures.
  • the so-called opening pressure represents that pressure value in the valve control chamber 22 when it is open Control valve 36, in which the nozzle needle 12 lifts from the valve seat 16 of the nozzle body 13.
  • the injection valve according to the invention it is thus possible to use a determined in a special measuring apparatus opening pressure of the nozzle module 3 and the injection valve 1 to a throttle plate with a required for proper operation of the injection valve 1 diameter ratio between a diameter of the inlet throttle and a Diameter of the outlet throttle or a ratio between the throttle effects of the inlet throttle 23 and the outlet throttle 24 to select. Due to manufacturing tolerances, this diameter ratio or ratio between the throttling effects of the two throttles is different from nozzle module to nozzle module. Therefore, classified in an assembly process classified throttle disks with different diameter ratios and paired depending on the opening pressure of a nozzle module.
  • throttle plates are simple and inexpensive to produce, since the inlet throttle and the outlet throttle are integrated into a workpiece or a single component. In addition, the tuning of an injection valve during assembly is considerably simplified.
  • an injection valve can be adjusted, for example, via the pairing of throttle plates whose inlet throttles each have a function of the determined opening pressure selected and suitable for proper operation of the injection valve Have flow.
  • the diameter of the outlet throttle is in each case adapted to the diameter of the inlet throttle, that the diameter ratio of the throttles is constant for all throttle plates zuzupodenden.
  • the operation of the injectors is adjusted via throttle plates with varying diameter ratios.
  • the diameter ratio of the classified orifice plates is varied either by changing the diameter of the inlet throttle, by changing the diameter of the outlet throttle or by changing the diameter of the inlet throttle and the outlet throttle.
  • a minimum distance of the center line of the inlet throttle 23 in the annular collar 26 from the end face 27 of the throttle plate 14 should not be less than 2 mm in order to provide sufficient space for an electrode guide during erosion.
  • the diameter of the inlet throttle is in a range of 0.15 to 0.25 mm and in the present case preferably has a diameter of 0.2 mm.
  • the elevation of the throttle plate for the radial adjustment of the valve control module with respect to the nozzle module engages in a form-fitting manner at least in sections into a device of the nozzle module.

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

La présente invention concerne une soupape d'injection (1) comprenant un module de commande de soupape (2) et un module d'injecteur (3) qui est raccordé audit module de commande de soupape et qui présente un pointeau d'injecteur (12) pouvant se déplacer en direction axiale dans un corps d'injecteur (13). Le module de commande de soupape (2) est adjacent au module d'injecteur (3) avec une plaque d'étranglement (14). Un élément intermédiaire se trouve dans la zone d'une extrémité du pointeau d'injecteur (12) faisant face à la plaque d'étranglement (14). Cet élément intermédiaire est comprimé sur la plaque d'étranglement (14) par un ressort (18) placé entre l'élément intermédiaire (21) et le pointeau d'injecteur (12) et cette plaque d'étranglement contraint le pointeau d'injecteur (12) dans la direction de fermeture avec une force axiale. La soupape d'injection selon cette invention comprend également au moins un étranglement de sortie (24) dans la plaque d'étranglement (14) et au moins un étranglement d'admission (23) relié à une zone sous haute pression (9), ces étranglements débouchant dans une chambre de commande de soupape (22). La plaque d'étranglement présente sur son côté faisant face au module d'injecteur (3) une partie en saillie close (26) qui définit une chambre interne (25), représente une délimitation de la chambre de commande de soupape (22) et dans laquelle se trouve l'étranglement d'admission (23).

Claims (10)

  1. Injecteur (1) comportant un module de commande de soupape (2) relié à un module de buse (3) comportant une aiguille d'injecteur (12) mobile axialement dans un corps d'injecteur (13), le module de commande de soupape (2) étant adjacent au module de buse (3) par l'intermédiaire d'une plaque d'étranglement (14) avec un élément intermédiaire (21) prévu dans la zone d'une extrémité de l'aiguille d'injecteur (12) orientée vers la plaque d'étranglement (14), l'élément intermédiaire étant pressé contre la plaque d'étranglement (14) au moyen d'un ressort (18) qui, disposé entre l'élément intermédiaire (21) et l'aiguille d'injecteur (12), exerce une force axiale sur l'aiguille d'injecteur (12) dans la direction de fermeture, avec au moins un étranglement de sortie (24) dans la plaque d'étranglement (14) et au moins un étranglement d'entrée (23) raccordé à une zone de haute pression (9), lesquels étranglements débouchent dans une chambre de commande de soupape (22),
    caractérisé en ce que
    la plaque d'étranglement (14) présente, sur son côté orienté vers le module de buse (3), une élévation (26) qui délimite un espace intérieur (25) clos en soi qui représente une délimitation pour la chambre de commande de soupape (22) et qui loge l'étranglement d'entrée (23).
  2. Injecteur selon la revendication 1,
    caractérisé en ce que
    l'élément intermédiaire (21) a la forme d'une cuvette de ressort en contact avec la plaque d'étranglement (14) au niveau de la face frontale (28), orientée vers le module de buse (3), de l'élévation (26).
  3. Injecteur selon la revendication 1 ou 2,
    caractérisé en ce que
    l'aiguille d'injecteur (12) du module de buse (3) est guidée dans un guidage (41) de l'élément intermédiaire (21) et, à l'ouverture du module de buse (3), effectue un déplacement axial dans le guidage (41) de l'élément intermédiaire (21) de telle manière que l'aiguille d'injecteur (12) s'engage dans l'espace intérieur (25) de l'élévation (26) par son côté (12A) orienté vers la plaque d'étranglement (14).
  4. Injecteur selon l'une des revendications 1 à 3,
    caractérisé en ce que
    l'aiguille d'injecteur (12) présente, dans la zone de l'élément intermédiaire (21), un épaulement (32) qui vient en butée contre la face de l'élément intermédiaire (21) opposée à la plaque d'étranglement (14) pour une course définie de l'aiguille d'injecteur (12) lors d'un déplacement axial de l'aiguille d'injecteur (12) pour ouvrir le module buse (3).
  5. Injecteur selon l'une des revendications 1 à 4,
    caractérisé en ce que
    la face frontale (28), orientée vers l'élément intermédiaire (21), de l'élévation (26) une section transversale conique, qui crée un contact linéaire entre l'élévation (26) et l'élément intermédiaire (21).
  6. Injecteur selon l'une des revendications 1 à 5,
    caractérisé par
    une rondelle (19), servant à l'ajustement d'une élasticité du ressort (18), entre une extrémité du ressort (18) opposée à la plaque d'étranglement (14) et un épaulement (20) de l'aiguille d'injecteur (12).
  7. Injecteur selon l'une des revendications 1 à 6,
    caractérisé par
    un évidement (33) au niveau d'une jonction entre une face frontale (27), orientée vers l'élément intermédiaire (21), de la plaque d'étranglement (14) et l'élévation (26) dans la plaque d'étranglement (14).
  8. Injecteur selon l'une des revendications 3 à 7,
    caractérisé en ce que
    le guidage (41) de l'élément intermédiaire (21) destiné à l'aiguille d'injecteur (12) est coordonné à un guidage (40) du corps d'injecteur (13) du module de buse (3) destiné à l'aiguille d'injecteur (12).
  9. Injecteur selon l'une des revendications 1 à 8,
    caractérisé en ce qu'
    un rapport entre un diamètre de l'étranglement de sortie (24) et un diamètre de l'étranglement d'entrée (23) est ajusté en fonction d'une pression dans la chambre de commande de soupape (22) qui ouvre le module de buse (3).
  10. Injecteur selon l'une des revendications 1 à 9,
    caractérisé en ce que
    l'élévation (26) de la plaque d'étranglement (14) s'engage au moins partiellement et par complémentarité de forme avec un dispositif du module de buse (3) en vue de l'alignement radial du module de commande (2) par rapport au module de buse (3).
EP03799426A 2002-10-31 2003-08-11 Soupape d'injection Expired - Lifetime EP1567765B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10250720 2002-10-31
DE10250720A DE10250720A1 (de) 2002-10-31 2002-10-31 Einspritzventil
PCT/DE2003/002704 WO2004040119A1 (fr) 2002-10-31 2003-08-11 Soupape d'injection

Publications (2)

Publication Number Publication Date
EP1567765A1 EP1567765A1 (fr) 2005-08-31
EP1567765B1 true EP1567765B1 (fr) 2006-10-04

Family

ID=32103207

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03799426A Expired - Lifetime EP1567765B1 (fr) 2002-10-31 2003-08-11 Soupape d'injection

Country Status (6)

Country Link
US (1) US20060151637A1 (fr)
EP (1) EP1567765B1 (fr)
JP (1) JP2006504893A (fr)
CN (1) CN1639456A (fr)
DE (2) DE10250720A1 (fr)
WO (1) WO2004040119A1 (fr)

Families Citing this family (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005004405A1 (de) * 2005-01-31 2006-08-03 Siemens Ag Düsenbaugruppe und Einspritzventil
WO2006108309A1 (fr) * 2005-04-14 2006-10-19 Ganser-Hydromag Ag Injecteur de carburant
DE102005025952B4 (de) * 2005-06-06 2009-01-29 Continental Automotive Gmbh Verfahren zum Herstellen eines Ventils
RU2438035C2 (ru) * 2006-03-03 2011-12-27 Ганзер-Хюдромаг Аг Инжекторный клапан для топлива для двигателя внутреннего сгорания (варианты)
DE102006037175A1 (de) * 2006-08-09 2008-02-14 Robert Bosch Gmbh Kraftstoffinjektor mit verbessert geführter Hubbewegung des Ventilschließgliedes
DE102008040629A1 (de) 2008-07-23 2010-01-28 Robert Bosch Gmbh Verfahren zum Ansteuern eines Kraftstoffinjektors im Überdruckfall oder Fehlerfall und zugehöriges Einspritzsystem
DE102008040817A1 (de) 2008-07-29 2010-02-04 Robert Bosch Gmbh Kraftstoffinjektor mit einem rotierenden Lamellenrad
DE102008040885A1 (de) 2008-07-31 2010-02-04 Robert Bosch Gmbh Kraftstoffinjektor
DE102009024596A1 (de) 2009-06-10 2011-04-07 Continental Automotive Gmbh Einspritzventil mit Übertragungseinheit
DE102009024595A1 (de) * 2009-06-10 2011-03-24 Continental Automotive Gmbh Einspritzventil mit Übertragungseinheit
DE102009045995A1 (de) * 2009-10-26 2011-06-09 Robert Bosch Gmbh Kraftstoffeinspritzvorrichtung
JP5240181B2 (ja) * 2009-12-24 2013-07-17 株式会社デンソー 燃料噴射装置
AT510462B1 (de) * 2010-09-22 2014-04-15 Bosch Gmbh Robert Verfahren zum überprüfen und instandsetzen eines kraftstoffinjektors
DE102011076957A1 (de) * 2011-06-06 2012-12-06 Robert Bosch Gmbh Kraftstoffeinspritzventil für Brennkraftmaschinen
CN104093968B (zh) * 2012-02-07 2016-10-12 甘瑟-许德罗玛格股份公司 燃料喷射阀和用于喷射燃料的装置
DE102012208075A1 (de) * 2012-05-15 2013-11-21 Man Diesel & Turbo Se Injektor für eine Kraftstoffversorgungsanlage einer Brennkraftmaschine sowie Kraftstoffversorgungsanlage
DE102012221624A1 (de) * 2012-11-27 2014-05-28 Robert Bosch Gmbh Kraftstoffeinspritzventil für Brennkraftmaschinen
DE102015211918A1 (de) * 2015-06-26 2016-12-29 Robert Bosch Gmbh Kraftstoffinjektor
CN106351775B (zh) * 2016-11-24 2019-11-12 北油电控燃油喷射系统(天津)有限公司 一种控制腔中置式高压电控喷油器
DE102017101999A1 (de) * 2017-02-01 2018-08-02 Firma L'orange Gmbh Kraftstoff-Einspritzinjektor für eine Brennkraftmaschine
CN108397326B (zh) * 2018-01-23 2020-07-17 中国第一汽车股份有限公司 一种减少泄漏的共轨喷油器

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19709794A1 (de) * 1997-03-10 1998-09-17 Bosch Gmbh Robert Ventil zum Steuern von Flüssigkeiten
DE19936669A1 (de) * 1999-08-04 2001-02-22 Bosch Gmbh Robert Common-Rail-Injektor
US6626371B1 (en) * 1997-10-09 2003-09-30 Robert Bosch Gmbh Common rail injector
DE19821768C2 (de) * 1998-05-14 2000-09-07 Siemens Ag Dosiervorrichtung und Dosierverfahren
DE19827267A1 (de) * 1998-06-18 1999-12-23 Bosch Gmbh Robert Kraftstoff-Einspritzventil für Hochdruck-Einspritzung mit verbesserter Steuerung der Kraftstoffzufuhr
US6293254B1 (en) * 2000-01-07 2001-09-25 Cummins Engine Company, Inc. Fuel injector with floating sleeve control chamber
DE10029297A1 (de) * 2000-06-14 2001-10-18 Bosch Gmbh Robert Ventil zum Steuern von Flüssigkeiten
DE10040522A1 (de) * 2000-08-18 2002-02-28 Bosch Gmbh Robert Kraftstoffeinspritzsystem für Brennkraftmaschinen
DE10100390A1 (de) * 2001-01-05 2002-07-25 Bosch Gmbh Robert Einspritzventil
DE10139622B4 (de) * 2001-03-29 2018-06-14 Robert Bosch Gmbh Einspritzventil
DE10118053A1 (de) * 2001-04-11 2002-10-24 Bosch Gmbh Robert Ventil zum Steuern von Flüssigkeiten
DE10122256A1 (de) * 2001-05-08 2002-11-21 Bosch Gmbh Robert Kraftstoff-Einspritzvorrichtung für Brennkraftmaschinen, insbesondere Common-Rail-Injektor, sowie Kraftstoffsystem und Brennkraftmaschine

Also Published As

Publication number Publication date
DE10250720A1 (de) 2004-05-13
EP1567765A1 (fr) 2005-08-31
US20060151637A1 (en) 2006-07-13
JP2006504893A (ja) 2006-02-09
CN1639456A (zh) 2005-07-13
WO2004040119A1 (fr) 2004-05-13
DE50305301D1 (de) 2006-11-16

Similar Documents

Publication Publication Date Title
EP1567765B1 (fr) Soupape d'injection
DE19519192C1 (de) Einspritzventil
EP0657644B1 (fr) Dispositif d'injection de combustible pour moteurs à combustion interne
DE19946827C1 (de) Ventil zum Steuern von Flüssigkeiten
EP1705369A1 (fr) Injecteur de carburant pour des moteurs a combustion interne
EP1705365A2 (fr) Injecteur de carburant avec contrôle direct de l'aiguille et amplificateur variable de course
DE10100390A1 (de) Einspritzventil
WO2008049671A1 (fr) Injecteur de carburant
EP1703119B1 (fr) Buse d'injection de carburant
DE10205218A1 (de) Ventil zur Steuerung einer Verbindung in einem Hochdruckflüssigkeitssystem, insbesondere einer Kraftstoffeinspitzeinrichtung für eine Brennkraftmaschine
WO2001038712A2 (fr) Soupape d'injection de carburant pour moteurs a combustion interne
WO2001011219A1 (fr) Injecteur a rampe commune
DE10152268A1 (de) Einspritzventil
WO2002053958A1 (fr) Soupape de commande de liquides
EP2824310B1 (fr) Soupape d'injection de carburant pour moteurs à combustion interne
EP1961953A1 (fr) Soupape à plusieurs voies
EP1276983B1 (fr) Soupape servant a diriger des liquides
DE10050599B4 (de) Einspritzventil mit einem Pumpkolben
EP1210512B1 (fr) Injecteur
DE10255328A1 (de) Ventileinrichtung, insbesondere für ein Kraftstoffeinspritzsystem einer Brennkraftmaschine
EP1989433A1 (fr) Injecteur de carburant a pointeau de gicleur a actionnement direct et augmentation variable de la course de l'actionneur
DE19939478C1 (de) Ventil zum Steuern von Flüssigkeiten
DE10032924A1 (de) Kraftstoffeinspritzvorrichtung für Brennkraftmaschinen
EP1424492A2 (fr) Vanne de commande de liquides avec une buse et une valve de commande
WO2018153596A1 (fr) Injecteur de carburant destiné à injecter un carburant gazeux et/ou liquide

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: 20050531

AK Designated contracting states

Kind code of ref document: A1

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

RBV Designated contracting states (corrected)

Designated state(s): DE FR GB IT

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): DE FR GB IT

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT;WARNING: LAPSES OF ITALIAN PATENTS WITH EFFECTIVE DATE BEFORE 2007 MAY HAVE OCCURRED AT ANY TIME BEFORE 2007. THE CORRECT EFFECTIVE DATE MAY BE DIFFERENT FROM THE ONE RECORDED.

Effective date: 20061004

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

Free format text: NOT ENGLISH

REF Corresponds to:

Ref document number: 50305301

Country of ref document: DE

Date of ref document: 20061116

Kind code of ref document: P

GBV Gb: ep patent (uk) treated as always having been void in accordance with gb section 77(7)/1977 [no translation filed]

Effective date: 20061004

EN Fr: translation not filed
PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed

Effective date: 20070705

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20061004

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20070525

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20061004

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20141024

Year of fee payment: 12

REG Reference to a national code

Ref country code: DE

Ref legal event code: R119

Ref document number: 50305301

Country of ref document: DE

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20160301