EP2201240B1 - Injecteur - Google Patents

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Publication number
EP2201240B1
EP2201240B1 EP08803438A EP08803438A EP2201240B1 EP 2201240 B1 EP2201240 B1 EP 2201240B1 EP 08803438 A EP08803438 A EP 08803438A EP 08803438 A EP08803438 A EP 08803438A EP 2201240 B1 EP2201240 B1 EP 2201240B1
Authority
EP
European Patent Office
Prior art keywords
control
valve element
control valve
injector
injector according
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.)
Active
Application number
EP08803438A
Other languages
German (de)
English (en)
Other versions
EP2201240A1 (fr
Inventor
Nadja Eisenmenger
Hans-Christoph Magel
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 EP2201240A1 publication Critical patent/EP2201240A1/fr
Application granted granted Critical
Publication of EP2201240B1 publication Critical patent/EP2201240B1/fr
Active legal-status Critical Current
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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
    • F02M63/007—Details not provided for in, or of interest apart from, the apparatus of the groups F02M63/0014 - F02M63/0059
    • F02M63/0078—Valve member details, e.g. special shape, hollow or fuel passages in the valve member
    • 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
    • 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
    • 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
    • F02M63/0031—Valves characterized by the type of valves, e.g. special valve member details, valve seat details, valve housing details
    • F02M63/004—Sliding valves, e.g. spool valves, i.e. whereby the closing member has a sliding movement along a seat for opening and closing
    • 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
    • F02M63/0031—Valves characterized by the type of valves, e.g. special valve member details, valve seat details, valve housing details
    • F02M63/0043—Two-way valves
    • 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
    • F02M63/007—Details not provided for in, or of interest apart from, the apparatus of the groups F02M63/0014 - F02M63/0059
    • F02M63/0071—Details not provided for in, or of interest apart from, the apparatus of the groups F02M63/0014 - F02M63/0059 characterised by guiding or centering means in valves including the absence of any guiding means, e.g. "flying arrangements"
    • 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
    • F02M63/007—Details not provided for in, or of interest apart from, the apparatus of the groups F02M63/0014 - F02M63/0059
    • F02M63/0073—Pressure balanced valves
    • 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
    • F02M63/007—Details not provided for in, or of interest apart from, the apparatus of the groups F02M63/0014 - F02M63/0059
    • F02M63/0077—Valve seat details
    • 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
    • F02M63/007—Details not provided for in, or of interest apart from, the apparatus of the groups F02M63/0014 - F02M63/0059
    • F02M63/0078—Valve member details, e.g. special shape, hollow or fuel passages in the valve member
    • F02M63/008—Hollow valve members, e.g. members internally guided
    • 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 injector for injecting fuel into a combustion chamber of an internal combustion engine, in particular a common rail injector, according to the preamble of claim 1.
  • the EP 1 612 403 A1 is a common rail injector with a pressure balanced in the axial direction control valve known.
  • the control valve By means of the control valve, the fuel pressure can be influenced within a limited by an injection valve element control chamber.
  • the injection valve element By varying the fuel pressure within the control chamber, the injection valve element is adjusted between an open position and a closed position, wherein the injection valve element releases the fuel flow into the combustion chamber of an internal combustion engine in its open position.
  • the control valve has an axially adjustable by means of an electromagnetic actuator, sleeve-shaped control valve member which cooperates with a control valve seat.
  • the control valve seat is formed on a plate member from which extends integrally formed therewith a guide pin in the axial direction and passes through the sleeve-shaped control valve element.
  • a disadvantage of the known injector is that the arranged at the foot of the guide pin control valve seat is difficult to produce due to its poor accessibility.
  • the invention has for its object to provide an injector with a control valve, the control valve seat is easily manufacturable, and avoided in the strength problems, even at low control valve seat diameters.
  • the invention is based on the idea within the sleeve-shaped control valve element to arrange a pressure pin for receiving the fuel pressure acting in the axial direction and to form this pressure pin as a separate component of the equipped with the control valve seat component.
  • the pressure pin serves as a guide element for the sleeve-shaped control valve element or that additionally or alternatively an outer guide for guiding the sleeve-shaped control valve element is provided on its outer periphery.
  • control valve seat formed in this way, angular errors can be compensated similarly to a spherical control valve seat, but an outer cone as a control valve seat can be manufactured comparatively easily and can be detected well by measurement. Due to the separate formation of pressure pin and the component with control valve seat, the control valve seat is easily accessible, so that the control valve seat is easily manufacturable. In addition, the control valve seat and the guide for the sleeve-shaped control valve element can be processed separately due to the arrangement of different components. By combining a designed as an outer cone control valve seat with a separate pressure pin so easy to be manufactured injector is created, which can be formed in a simple manner pressure balanced in the axial direction.
  • the sleeve-shaped Control valve element advantageously has a high radial rigidity in its end facing the seating area.
  • the control valve seat formed as an outer cone generates centering forces by which the control valve element can be optimally centered to the control valve seat.
  • control valve more precisely the control valve element, as in its closed position in the axial direction pressure compensated component is formed.
  • the sleeve-shaped control valve element is seated with its inner circumference on the control valve designed as an outer cone, so that a linear sealing surface is obtained without pressure step.
  • the outer cone of the control valve seat has an outer cone angle of a value range between about 60 ° and about 80 °.
  • outer cone angle is understood to mean the angle of the outer cone surface to the longitudinal central axis of the control valve seat (outer cone).
  • the outer cone angle is selected from a range between about 70 ° and about 75 °.
  • an inner cone is provided on the cooperating with the designed as an outer cone control valve seat, adjustable in the axial direction, sleeve-shaped control valve element.
  • the inner cone angle ie the angle of the inner conical surface and the longitudinal center axis of the inner cone, is greater than the outer cone angle.
  • control valve seat of the preferably pressure-balanced control valve is inevitably subject to wear over its service life, it is advantageous to limit the actual seating area on the sleeve-shaped control valve element in the radial direction. This is surprisingly very easy to implement in a designed as an outer cone control valve seat.
  • the maximum extent of the sealing surface which increases due to wear can be limited to a maximum by limiting the end face of the control valve element facing the control valve seat by an annular, perpendicular to the longitudinal extent of the valve sleeve, ie in the radial direction, extending end face.
  • the axial distance between the annular, formed by the inner cone seat line (sealing surface) and extending in the radial direction end surface of the control valve element less than 400 .mu.m, preferably less than 300 .mu.m, more preferably less than 200 microns , is.
  • the maximum end-side, radial extension of the seat line can be limited by wear to a minimum, which even in a long-time in operation injector still a high surface pressure in the investment area the sleeve-shaped control valve element leads to the control valve seat.
  • the pressure pin is designed as an inner guide element for the control valve element, that is, the control valve element is guided with its cylindrical inner circumference on the outer circumference of the pressure pin.
  • the pressure pin is fixed to, for example, a positive fit on a component which is axially spaced apart from the component having the control valve seat, or is integral therewith.
  • this component is a plate on which an electromagnet arrangement of an electromagnetic actuator is supported in the axial direction.
  • the pressure pin passes through this electromagnet arrangement in the axial direction.
  • an embodiment of the injector can be realized in which an external guide for the control valve element is provided, the control valve element is thus guided on its outer circumference.
  • the pressure pin is formed as an independent component, which in switched off the internal combustion engine to the the control valve seat having component rests and is supported when pressurized on an axially disposed of this component component.
  • the injector with pressure pin and outer conical control valve seat is an injector with an electromagnetic actuator for actuating the control valve.
  • Fig. 1 a designed as a common-rail injector injector 1 for injecting fuel in a combustion chamber of an internal combustion engine of a motor vehicle is shown.
  • a high pressure pump 2 delivers fuel from a reservoir 3 in a high-pressure fuel storage 4 (Rail). In this fuel, especially diesel or gasoline, under high pressure, of about 2000 bar in this embodiment, stored.
  • the injector 1 is connected via other, not shown, injectors via a supply line 5.
  • a return line 8 a low-pressure region 9 of the injector 1 is connected to the storage container 3. Via the return line 8, a later to be explained control amount of fuel from the injector 1 to the reservoir 3 to flow.
  • an injector body 10 Within an injector body 10 is a control rod 11 of an existing in this embodiment of the control rod 11 and a nozzle needle 12 injection valve element 13 is arranged.
  • the control rod 11 of the injection valve element 13 is guided longitudinally displaceably in a lower portion of the sleeve-shaped component 14.
  • the control rod 11 In a lying on low pressure chamber 15, which is arranged in the plane of the drawing axially below the pressure chamber 6 and sealed with a sealing element 16 with respect to this, the control rod 11 is located with its lower end face on an upper end side of the nozzle needle 12 which is axially displaceable within a Nozzle body 18 is guided.
  • the nozzle body 18 is screwed by means of a union nut, not shown, with the injector body 10.
  • the low-pressure chamber 15 is connected via a channel 19 with connected to the low pressure region 9 of the injector.
  • the injection valve element 13 has a diameter stage 42 (low pressure stage), whereby a fast closing behavior of the injector 1 is ensured.
  • the nozzle needle 12 has at its tip 20 a closing surface 21, with which the nozzle needle 12, so the injection valve element 13, in close contact with an injection valve member seat 22 formed within the nozzle body 18 can be brought.
  • a control chamber 26 is limited, via a radially in the sleeve-shaped portion of Component 14 extending inlet throttle 27 is supplied with high-pressure fuel from the pressure chamber 6.
  • the control chamber 26 is above, in the upper, plate-shaped portion of the component 14 arranged drain channel 28 with outlet throttle 29 connected to a valve chamber 30 which is bounded radially outwardly by a sleeve-shaped control valve element 31 of a control valve 32 (servo valve).
  • fuel can flow into the low-pressure region 9 of the injector 1 when the control valve element 31 which can be actuated by an electromagnetic actuator 33 is lifted off its control valve seat 34, which is designed as an outer cone and arranged on the plate-shaped section of the component 14, ie the control valve 32 is open.
  • the flow cross sections of the inlet throttle 27 and the outlet throttle 28 are matched to one another such that when the control valve 32 is open, a net outflow of fuel (control quantity) from the control chamber 26 via the valve chamber 30 into the low pressure region 9 of the injector 1 and from there via the return line 8 takes place in the reservoir 3.
  • the control valve 32 is designed as a pressure balanced in the axial direction in the closed state valve, wherein the control valve member 31 in its upper plane in the plane of the drawing in one piece with an anchor plate 35 which cooperates with an electromagnet assembly 36 of the actuator 33 is formed.
  • a control closing spring 40 which is supported on a component 41 designed as an injector cover, moves the sleeve-shaped control valve element 31 back onto its outer conical control valve seat 34 on the upper side of the component 14 in the drawing plane.
  • the fuel flowing in through the inlet throttle 27 increases the pressure in the cylinder Control chamber 26 rapidly, whereby the control rod 11 and subsequently the nozzle needle 12, supported by the spring force of a closing spring 38, which is supported on a circumferential collar 39 of the control rod 11, is moved in the direction of the injection valve member seat 22, whereby the fuel flow from the nozzle hole arrangement 23 is interrupted in the combustion chamber.
  • a pressure pin 43 is received, which receives the pressure forces acting in the axial direction within the valve chamber 30 and the valve chamber 30 seals in the axial direction in the plane of the drawing upwards.
  • the pressure pin 43 is supported on the component 41 arranged by the component 14, for which purpose the pressure pin 43 passes through the electromagnet arrangement 36 of the actuator 33 in the axial direction.
  • the pressure pin 43 drops and lies on the top of the outer conical control valve seat 34 until the pressure builds up again.
  • a guide plate 44 (outer guide) is provided, which is the Control valve element 31 leads at its outer periphery.
  • the loose pressure pin 43 designed as a separate component has no guiding function, but serves only to absorb pressure forces acting in the axial direction.
  • an axial passage 45 is provided to the fuel flow within the low pressure region to an armature space 46 and from there via a central, penetrated by the pressure pin 43 opening 51, in which the control closing spring 40 is arranged to ensure the return line 8 ,
  • the control valve member 31 has a radially inner cone 47 located inside. From this, a seat line 48 (sealing line) is formed on the inner circumference, by means of which the control valve element 31 cooperates with the control valve seat 34. How out Fig. 2 it can be seen, an inner cone angle ⁇ of the inner cone 47 is greater than an outer cone angle ⁇ of the outer cone-shaped control valve seat 34th
  • Radially to the inner cone 47 includes an end face 49 of the control valve element 31 on the front side.
  • the distance A between the seat line 48 and the annular end surface 50 is less than 200 microns in the embodiment shown.
  • the perpendicular to the longitudinal central axis L of the control valve seat 34 extending end surface 49 limits the wear-increasing, maximum extension of the seat line 48, whereby a sufficiently high surface pressure is ensured even after a long period of operation.
  • control closing spring 40 is supported on the one hand on the control valve element 31 and on the other an annular shoulder 50 of the pressure pin 43 and presses it against the serving as a lid member 41st
  • Fig. 2 includes radially outward of the flat, extending in the radial direction end surface 49 of the control valve member 31, a radially outer chamfer portion 17 at.

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)

Claims (10)

  1. Injecteur pour injecter du carburant dans une chambre de combustion d'un moteur à combustion interne, en particulier injecteur à rampe commune, comprenant un élément de soupape d'injection (13) réglable entre une position de fermeture et une position d'ouverture libérant le flux de carburant, qui peut être commandé au moyen d'une soupape de commande (32) présentant un élément de soupape de commande en forme de douille (31), l'élément de soupape de commande (32) coopérant avec un siège de soupape de commande (34) disposé sur un élément structurel (14), et le siège de soupape de commande (34) étant réalisé sous forme de cône extérieur,
    caractérisé en ce
    qu'une goupille de pression (43) entourée par l'élément de soupape de commande (31) et séparée de l'élément structurel (14) est prévue.
  2. Injecteur selon la revendication 1,
    caractérisé en ce que
    la soupape de commande (32) est réalisée dans l'état fermé avec une compensation de la pression dans la direction axiale.
  3. Injecteur selon l'une quelconque des revendications 1 ou 2,
    caractérisé en ce que
    le cône extérieur présente un angle de conicité extérieur (α) dans une plage d'environ 60° à environ 80°, de préférence d'environ 70° à environ 75°.
  4. Injecteur selon l'une quelconque des revendications précédentes,
    caractérisé en ce que
    l'élément de soupape de commande (31) présente un cône intérieur s'ouvrant dans la direction du siège de soupape de commande (34).
  5. Injecteur selon la revendication 4,
    caractérisé en ce que
    l'angle de conicité extérieur (β) est inférieur à l'angle de conicité intérieur (α).
  6. Injecteur selon l'une quelconque des revendications précédentes,
    caractérisé en ce que
    l'élément de soupape de commande (31) est limité du côté du siège par une surface d'extrémité (49) de forme annulaire et s'étendant perpendiculairement à l'étendue longitudinale de l'élément de soupape de commande (31).
  7. Injecteur selon l'une quelconque des revendications précédentes,
    caractérisé en ce que
    la distance axiale (A) d'une ligne de siège (48) formée par le cône intérieur à la surface d'extrémité de forme annulaire (49) est inférieure à 400 µm, de préférence inférieure à 300 µm, particulièrement préférablement inférieure à 200 µm.
  8. Injecteur selon l'une quelconque des revendications précédentes,
    caractérisé en ce que
    la goupille de pression (43) sert d'élément de guidage interne pour l'élément de soupape de commande (31) et est fixée sur un composant (41) espacé de l'élément structure (14) présentant le siège de soupape de commande (34) ou est réalisée d'une seule pièce avec celui-ci, ou est sollicitée par la force d'un ressort contre celui-ci, ou s'appuie contre celui-ci lors d'une sollicitation en pression.
  9. Injecteur selon l'une quelconque des revendications précédentes,
    caractérisé en ce que
    l'élément de soupape de commande (31) est guidé sur sa périphérie extérieure.
  10. Injecteur selon l'une quelconque des revendications précédentes,
    caractérisé en ce
    qu'il est prévu un actionneur électromagnétique (33) pour actionner la soupape de commande (32).
EP08803438A 2007-09-17 2008-09-01 Injecteur Active EP2201240B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE200710044356 DE102007044356A1 (de) 2007-09-17 2007-09-17 Injektor
PCT/EP2008/061455 WO2009037097A1 (fr) 2007-09-17 2008-09-01 Injecteur

Publications (2)

Publication Number Publication Date
EP2201240A1 EP2201240A1 (fr) 2010-06-30
EP2201240B1 true EP2201240B1 (fr) 2012-12-19

Family

ID=39938416

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08803438A Active EP2201240B1 (fr) 2007-09-17 2008-09-01 Injecteur

Country Status (3)

Country Link
EP (1) EP2201240B1 (fr)
DE (1) DE102007044356A1 (fr)
WO (1) WO2009037097A1 (fr)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102007044356A1 (de) * 2007-09-17 2009-03-19 Robert Bosch Gmbh Injektor
DE102009027932A1 (de) * 2009-07-22 2011-01-27 Robert Bosch Gmbh Kraftstoffinjektor und Kraftstoffeinspritzsystem
DE102009046563A1 (de) * 2009-11-10 2011-05-12 Robert Bosch Gmbh Kraftstoffinjektor
DE102010003202A1 (de) 2010-03-24 2011-09-29 Robert Bosch Gmbh Common-Rail-Injektor mit druckausgeglichenem Schaltventil und zusätzlichem Speichervolumen
DE102011077618A1 (de) 2011-06-16 2012-12-20 Robert Bosch Gmbh Injektor, insbesondere Kraftstoffinjektor für eine Brennkraftmaschine
DE102011078346A1 (de) * 2011-06-29 2013-01-03 Robert Bosch Gmbh Schaltventil, Verfahren zum Herstellen eines Schaltventils und Kraftstoffinjektor mit einem Schaltventil
DE102011078407A1 (de) * 2011-06-30 2013-01-03 Robert Bosch Gmbh Schaltventil zur Steuerung eines Kraftstoffinjektors und Kraftstoffinjektor
DE102011079999A1 (de) 2011-07-28 2013-01-31 Robert Bosch Gmbh Injektor
DE102017207880A1 (de) * 2017-05-10 2018-11-15 Robert Bosch Gmbh Kraftstoffinjektor

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1967727A2 (fr) * 2007-03-08 2008-09-10 Robert Bosch Gmbh Injecteur de carburant doté d'un équipement amélioré d'une soupape de commande pour la commande d'une aiguille d'injection
WO2008138743A1 (fr) * 2007-05-14 2008-11-20 Robert Bosch Gmbh Injecteur
WO2009016003A1 (fr) * 2007-07-30 2009-02-05 Robert Bosch Gmbh Soupape d'injection de carburant avec une étanchéité améliorée au niveau du siège d'étanchéité d'une soupape de commande à pression compensée
WO2009037097A1 (fr) * 2007-09-17 2009-03-26 Robert Bosch Gmbh Injecteur
WO2009037095A1 (fr) * 2007-09-17 2009-03-26 Robert Bosch Gmbh Soupape de commande pour injecteur de carburant

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DE602004004254T2 (de) 2004-06-30 2007-07-12 C.R.F. S.C.P.A. Servoventil zum Steuern eines Einspritzventils einer Brennkraftmaschine
DE102006021741A1 (de) * 2006-05-10 2007-11-15 Robert Bosch Gmbh Kraftstoffinjektor mit druckausgeglichenem Steuerventil

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Publication number Priority date Publication date Assignee Title
EP1967727A2 (fr) * 2007-03-08 2008-09-10 Robert Bosch Gmbh Injecteur de carburant doté d'un équipement amélioré d'une soupape de commande pour la commande d'une aiguille d'injection
WO2008138743A1 (fr) * 2007-05-14 2008-11-20 Robert Bosch Gmbh Injecteur
WO2009016003A1 (fr) * 2007-07-30 2009-02-05 Robert Bosch Gmbh Soupape d'injection de carburant avec une étanchéité améliorée au niveau du siège d'étanchéité d'une soupape de commande à pression compensée
WO2009037097A1 (fr) * 2007-09-17 2009-03-26 Robert Bosch Gmbh Injecteur
WO2009037095A1 (fr) * 2007-09-17 2009-03-26 Robert Bosch Gmbh Soupape de commande pour injecteur de carburant

Also Published As

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EP2201240A1 (fr) 2010-06-30
WO2009037097A1 (fr) 2009-03-26
DE102007044356A1 (de) 2009-03-19

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