[go: up one dir, main page]

EP3032090B1 - Clapet de commutation ou de régulation de pression pour un système d'injection de carburant - Google Patents

Clapet de commutation ou de régulation de pression pour un système d'injection de carburant Download PDF

Info

Publication number
EP3032090B1
EP3032090B1 EP15192577.3A EP15192577A EP3032090B1 EP 3032090 B1 EP3032090 B1 EP 3032090B1 EP 15192577 A EP15192577 A EP 15192577A EP 3032090 B1 EP3032090 B1 EP 3032090B1
Authority
EP
European Patent Office
Prior art keywords
pressure
valve
seat
switching
spring
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
EP15192577.3A
Other languages
German (de)
English (en)
Other versions
EP3032090A1 (fr
Inventor
Felix Jaegle
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 EP3032090A1 publication Critical patent/EP3032090A1/fr
Application granted granted Critical
Publication of EP3032090B1 publication Critical patent/EP3032090B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • 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
    • F02M63/005—Pressure relief valves
    • F02M63/0052—Pressure relief valves with means for adjusting the opening pressure, e.g. electrically controlled
    • 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
    • F02M63/0017—Valves characterised by the valve actuating means electrical, e.g. using solenoid using electromagnetic operating means
    • 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
    • F02M63/0078—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
    • 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
    • F02M63/02—Fuel-injection apparatus having several injectors fed by a common pumping element, or having several pumping elements feeding a common injector; Fuel-injection apparatus having provisions for cutting-out pumps, pumping elements, or injectors; Fuel-injection apparatus having provisions for variably interconnecting pumping elements and injectors alternatively
    • F02M63/0225—Fuel-injection apparatus having a common rail feeding several injectors ; Means for varying pressure in common rails; Pumps feeding common rails
    • F02M63/023—Means for varying pressure in common rails
    • F02M63/0235—Means for varying pressure in common rails by bleeding fuel pressure
    • F02M63/025—Means for varying pressure in common rails by bleeding fuel pressure from the common rail
    • 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
    • F02M2200/502—Springs biasing the valve member to the open position

Definitions

  • the invention relates to a switching or pressure control valve for a fuel injection system, in particular a common rail injection system, with the features of the preamble of claim 1.
  • the known control valve has a closing element with a central bore in which a pressure pin is received and guided. Furthermore, the closing element has an annular sealing edge, the diameter of which essentially corresponds to the diameter of the central bore, so that the closing element is substantially pressure-balanced in the closed position, in which the sealing edge lies sealingly against a valve seat.
  • the pressure pin is received and guided within the central bore of the closing element in such a way that it experiences an axial change in position on its end face facing the valve seat and in this way a hydraulic connection of the bore with a return causes.
  • the control valve thus also has a pressure limiting function, so that a pressure limiting valve, which is generally additionally provided, can be dispensed with.
  • control valve for controlling an injection valve member of a fuel injection valve device known for an internal combustion engine, which additionally has a pressure maintenance function to enable the internal combustion engine to be started quickly, in particular in the start-stop mode.
  • the control valve has a pressure-maintaining body that is prestressed against an opening of a connecting channel that connects a control chamber with a valve chamber. The pretensioning force is brought about by a pressure holding spring which is designed or dimensioned such that the pressure holding body closes as soon as a desired holding pressure is reached.
  • pressure control valves for regulating the pressure in a high-pressure fuel accumulator are known, via which a fuel injection valve of the aforementioned type is supplied with fuel under high pressure.
  • a pressure control valve is an example from the published patent application DE 10 2010 043 097 A1 out. It has a magnetic actuator and an armature for acting on a lifting valve closing element, via the lifting movement of which a hydraulic connection from the high-pressure accumulator to a valve chamber connected to a low-pressure region can be released or closed.
  • valves which can be actuated in this way permanent leakage occurs in principle, which can only be limited to a tolerable level in the case of common requirements by means of narrow manufacturing tolerances.
  • the operation of a start-stop system or a hybrid vehicle places higher demands on the permissible leakage.
  • JPH07167012 A and EP0823550 A1 disclose further switching or pressure control valves.
  • the invention is therefore based on the object of specifying a switching or pressure control valve for a fuel injection system, in particular a common rail injection system, which can meet these higher requirements and is also simple and inexpensive to manufacture.
  • the switching or pressure control valve proposed for a fuel injection system comprises a valve valve that interacts with a valve seat. stroke-movable valve closing element which can be actuated by means of an actuator and is acted upon by the spring force of a valve spring against the direction of action of the actuator. Furthermore, the proposed valve comprises a pressure pin, which is received at least in regions in a central bore of the valve closing element and is acted upon in the direction of a sealing seat by the spring force of a pressure holding spring. According to the invention, the spring force of the valve spring acts on the valve closing element in the opening direction. This means that the proposed valve is designed as a normally open valve.
  • the proposed valve fulfills the safety requirements that are regularly placed on a pressure control valve in a fuel injection system. If the actuator fails, the valve spring pushes the valve closing element out of the valve seat, so that the valve opens and prevents an inadmissible pressure increase in the system.
  • the valve has other functions that also include a pressure maintenance function.
  • the pressure maintenance function is realized in the present case by the spring-loaded pressure pin in connection with the additionally provided sealing seat.
  • the pressure pin and sealing seat thus form a pressure holding valve which ensures a minimum pressure in the system, for example to enable start-stop operation of an internal combustion engine. Only at higher pressures does the pressure maintenance valve open against the spring force of the pressure retention spring, so that the pressure maintenance function is only implemented up to a predetermined limit pressure.
  • the limit pressure corresponds to the opening pressure of the pressure-maintaining valve, which can be adjusted via the spring force of the pressure-retaining spring acting on the pressure pin in the direction of the sealing seat.
  • the proposed valve has a switching or pressure control function, which represents the actual valve function.
  • the proposed valve is simple and inexpensive to manufacture, since it primarily uses components that are usually already present in such a valve. Possibly. only a further sealing seat and / or an additional spring must or must be provided. In addition, it is important to coordinate the springs, ie the valve spring and the pressure retaining spring, with respect to their arrangement and spring force.
  • the pressure retaining spring the spring force of which acts on the pressure pin in the direction of the sealing seat, is supported on the one hand on the pressure pin, preferably on a collar section of the pressure pin, and on the other hand on the housing side.
  • This arrangement allows a particularly simple and easy-to-assemble embodiment of a valve according to the invention, since the pressure retaining spring and the collar section formed on the pressure pin can be arranged outside the central bore of the valve closing element to support the pressure retaining spring.
  • the pressure retaining spring is supported on the one hand on the pressure pin, preferably on a collar section of the pressure pin, and on the other hand on the valve closing element.
  • the support on the valve closing element is preferably carried out indirectly via a spring plate connected to the valve closing element.
  • the pressure retaining spring and the collar region formed on the pressure pin for supporting the pressure retaining spring are arranged within the central bore of the valve closing element.
  • the spring plate is preferably connected to the valve closing element only after the pressure pin and the pressure retaining spring have been inserted into the central bore of the valve closing element. To establish the connection, the spring plate can, for example, be pressed into the central bore of the valve closing element.
  • the support of the pressure retaining spring on the valve closing element has the advantage that the spring force of the pressure retaining spring can be used to bring about an additional opening force on the valve closing element, which ensures that the valve opens reliably.
  • the pressure retaining spring is preferably designed as a compression spring, in particular as a helical compression spring. Furthermore, the pressure holding spring preferably surrounds the pressure pin at least in regions in order to guide the pressure holding spring over the pressure pin.
  • the central bore of the valve closing element is advantageously designed as a stepped bore, so that a section with an enlarged inner diameter is formed is used in which the pressure retaining spring, the collar portion of the pressure pin and / or the spring plate.
  • the pressure pin has at its end facing away from the sealing seat a stop surface cooperating with a housing stop.
  • the housing stop serves to support the pressure pin when it lifts off the sealing seat due to an increase in pressure in the system. This also removes the pressure holding function of the valve so that the actual function of the valve is not impaired.
  • the valve is preferably pressure-balanced or at least pressure-equalized. This means that the pressure forces acting on the valve closing element equalize or at least almost equalize. This reduces the power required to operate the valve and a much smaller actuator can be used. In addition, the energy requirement of the actuator is reduced.
  • the valve closing element is designed as a hollow needle.
  • the hollow needle is preferably designed to taper at its end facing the valve seat. This configuration leads to the formation of an annular sealing edge, the diameter of which essentially corresponds to the inside diameter of the central bore, as a result of which the valve closing element is largely pressure-balanced.
  • valve seat be conical.
  • the tapered end of the cone is preferably oriented in the direction of the valve closing element, so that when the valve is closed, the preferably annular sealing edge of the valve closing element engages around the conical valve seat.
  • the opening to be sealed thus comes to lie within the central bore of the valve closing element, which simplifies the design of the pressure-maintaining valve.
  • the sealing seat of the pressure holding valve is preferably designed as a flat seat or a conical seat and / or is formed directly adjacent to the valve seat.
  • the conical valve seat can, for example, be flattened or chamfered at the end.
  • a flat, conical or partially spherical sealing contour can also be formed on the pressure pin. Basically, all known seat geometries are possible.
  • the actuator is advantageously a magnetic actuator and comprises a magnetic coil for acting on an armature which is coupled or can be coupled to the valve closing element.
  • the actuator enables direct actuation of the valve.
  • a small magnetic actuator can also be used, since the power requirement is low.
  • the pressure control valve shown can be used in particular to control the pressure in a high-pressure accumulator (not shown) in a fuel injection system.
  • the high-pressure accumulator can be connected to a return line (not shown) via an inlet channel 16 and an outlet channel 20 of the pressure control valve.
  • the pressure control valve shown is designed as a pressure-balanced valve. It comprises a valve closing element 2 which interacts with a valve seat 1 and can be moved and an actuator 3 by means of which the valve closing element 2 can be actuated directly.
  • the actuator 3 is a magnetic actuator with a magnetic coil 13 for acting on an armature 14 connected to the valve closing element 2, which in the present case is designed as a plunger armature.
  • armature 14 When the solenoid 13 is energized, a magnetic field is formed, the magnetic force of which pulls the armature 14 in the direction of the valve seat 1.
  • the armature 14 presses the valve closing element 2 against the valve seat 1.
  • valve spring 4 acting on the valve closing element 2 in the opening direction can open the valve.
  • the valve spring 4 is supported on the one hand on the end face of the armature 14 facing the valve seat 1 and on the other hand on an end face of a guide sleeve 15 which partially surrounds the valve closing element 2 and which serves to guide the valve closing element 2.
  • the guide sleeve 15 is penetrated by the drain channel 20.
  • a central bore 6 is formed in the valve closing element 2, in which a pressure pin 5 is received and guided in some areas.
  • the pressure pin 5 projects beyond the valve closing element 2 at its end facing away from the valve seat 1 and forms a collar section 11 on which a pressure holding spring 8 is supported.
  • the other end of the pressure retaining spring 8 is supported on the housing side.
  • the spring force of the pressure holding spring 8 prestresses the pressure pin 5 in the direction of a sealing seat 7, which, lying radially on the inside, directly adjoins the valve seat 1 and is penetrated by the inlet channel 16. If the pressure pin 5 is in contact with the sealing seat 7 (see Fig. 1 ), the inlet channel 16 is closed.
  • the pressure pin 5 moves in the direction of a housing stop 9 until a stop surface 10 formed on the pressure pin 5 comes to rest against the housing stop 9. In this position, the pressure pin 5 no longer takes part in the pressure control function of the valve. This is because the valve closing element 2 can open and close unaffected.
  • a modification of the pressure control valve Fig. 1 is in the Fig. 2 shown.
  • the pressure retaining spring 8 is arranged here within the central bore 6 of the valve closing element 2, which is designed as a stepped bore and also receives the collar portion 11 of the pressure pin 5 and a spring plate 12 for supporting the pressure retaining spring 8.
  • a stop surface 17 for the collar section 11 of the pressure pin 5 is formed via the stepped bore, so that the spring force of the pressure holding spring 8 also acts on the valve closing element 2. If the pressure pin 5 lifts off the sealing seat 7, this leads to an additional opening force on the valve closing element 2, so that a safe opening is ensured when the energization of the magnet coil 13 is ended.
  • valve seat 1 is conical and is encompassed by an annular sealing edge 18 of the valve closing element 2.
  • the opening of the inlet channel 16 to be sealed thus comes to lie within the central bore 6 of the valve closing element 2.
  • the conical valve seat 1 is flattened at the end, so that a flat seat is formed.
  • the pressure pin 5 has a flat sealing contour 19 which interacts with the sealing seat 7.
  • the sealing contour 19 on the pressure pin 5 is partially spherical and interacts with a sealing seat 7 designed as a conical seat.
  • the conical shape of the sealing seat 7 is formed by a chamfer, via which the valve seat 1 merges into the inlet channel 16.
  • the invention is not limited to the illustrated embodiments of a pressure control valve, but basically applicable to all pressure-balanced or almost pressure-balanced valves within a fuel injection system, in particular a common rail injection system.

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)
  • Fuel-Injection Apparatus (AREA)

Claims (9)

  1. Soupape de commutation ou de régulation de pression pour un système d'injection de carburant, en particulier un système d'injection à rampe commune, comportant un élément de fermeture de soupape (2) effectuant un mouvement de va-et-vient et coopérant avec un siège de soupape (1), lequel élément de fermeture de soupape peut être actionné au moyen d'un actionneur (3) et est sollicité par la force élastique d'un ressort de soupape (4) en sens inverse au sens d'action de l'actionneur (3), comportant en outre une goupille de pression (5) qui est reçue au moins dans certaines régions dans un alésage central (6) de l'élément de fermeture de soupape (2) et est sollicitée en direction d'un siège d'étanchéité (7) par la force élastique d'un ressort de maintien de pression (8), la goupille de pression (5) pouvant s'appuyer contre le siège d'étanchéité (7) et, ainsi, la goupille de pression (5) et le siège d'étanchéité (7) formant une soupape de maintien de pression,
    la force élastique du ressort de soupape (4) sollicitant l'élément de fermeture de soupape (2) dans le sens d'ouverture, caractérisée en ce que le siège d'étanchéité (7) est directement adjacent au siège de soupape (1) de manière radialement intérieure et est traversé par un canal d'amenée (16).
  2. Soupape de commutation ou de régulation de pression selon la revendication 1, caractérisée en ce que le ressort de maintien de pression (8) est supporté, à une extrémité, sur la goupille de pression (5), de préférence sur une partie de collerette (11) de la goupille de pression (5) et, à l'autre extrémité, sur le boîtier.
  3. Soupape de commutation ou de régulation de pression selon la revendication 1, caractérisée en ce que le ressort de maintien de pression (8) est supporté, à une extrémité, sur la goupille de pression (5), de préférence sur une partie de collerette (11) de la goupille de pression (5) et, à l'autre extrémité, sur l'élément de fermeture de soupape (2), de préférence indirectement par le biais d'une coupelle de ressort (12) reliée à l'élément de fermeture de soupape (2).
  4. Soupape de commutation ou de régulation de pression selon la revendication 1 ou 2, caractérisée en ce que l'alésage central (6) de l'élément de fermeture de soupape (2) est réalisé sous forme d'alésage étagé et comporte une partie présentant un diamètre intérieur agrandi pour recevoir le ressort de maintien de pression (8) et/ou la partie de collerette (11) de la goupille de pression (5) et/ou la coupelle de ressort (12).
  5. Soupape de commutation ou de régulation de pression selon l'une des revendications précédentes, caractérisée en ce que la goupille de pression (5) comporte, à son extrémité opposée au siège d'étanchéité (7), une surface de butée (10) coopérant avec une butée de boîtier (9).
  6. Soupape de commutation ou de régulation de pression selon l'une des revendications précédentes, caractérisée en ce que l'élément de fermeture de soupape (2) est réalisé sous forme d'aiguille creuse qui est formée de préférence de manière à se terminer de façon conique à son extrémité tournée vers le siège de soupape (1).
  7. Soupape de commutation ou de régulation de pression selon l'une des revendications précédentes, caractérisée en ce que le siège de soupape (1) est de forme conique.
  8. Soupape de commutation ou de régulation de pression selon l'une des revendications précédentes, caractérisée en ce que le siège d'étanchéité (7) est réalisé sous forme de siège plan ou de siège conique et/ou est formé de manière directement adjacente au siège de soupape (1).
  9. Soupape de commutation ou de régulation de pression selon l'une des revendications précédentes, caractérisée en ce que l'actionneur (3) est un actionneur magnétique et comporte une bobine magnétique (13) destinée à agir sur une armature (14) accouplée ou pouvant être accouplée à l'élément de fermeture de soupape (2).
EP15192577.3A 2014-12-09 2015-11-02 Clapet de commutation ou de régulation de pression pour un système d'injection de carburant Active EP3032090B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102014225323.3A DE102014225323A1 (de) 2014-12-09 2014-12-09 Schalt- oder Druckregelventil für ein Karftstoffeinspritzsystem

Publications (2)

Publication Number Publication Date
EP3032090A1 EP3032090A1 (fr) 2016-06-15
EP3032090B1 true EP3032090B1 (fr) 2020-01-08

Family

ID=54365153

Family Applications (1)

Application Number Title Priority Date Filing Date
EP15192577.3A Active EP3032090B1 (fr) 2014-12-09 2015-11-02 Clapet de commutation ou de régulation de pression pour un système d'injection de carburant

Country Status (2)

Country Link
EP (1) EP3032090B1 (fr)
DE (1) DE102014225323A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102021206328A1 (de) * 2021-06-21 2022-12-22 Robert Bosch Gesellschaft mit beschränkter Haftung Gasspeichervorrichtung, Gasversorgungssystem sowie Gasmotor

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07167012A (ja) * 1993-12-17 1995-07-04 Zexel Corp 燃料噴射装置

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4438336A1 (de) * 1994-10-27 1996-05-02 Bosch Gmbh Robert Magnetventil mit Druckbegrenzung für schlupfgeregelte Kraftfahrzeug-Bremsanlagen
GB9616521D0 (en) * 1996-08-06 1996-09-25 Lucas Ind Plc Injector
DE102006049885A1 (de) * 2006-10-23 2008-04-24 Robert Bosch Gmbh Injektor zur Einspritzung von Kraftstoff in Brennräume von Brennkraftmaschinen
DE102008000907A1 (de) * 2008-04-01 2009-10-08 Robert Bosch Gmbh Magnetventil mit mehrteiligem Anker ohne Ankerführung
DE102008002717A1 (de) * 2008-06-27 2010-01-14 Robert Bosch Gmbh Kraftstoffinjektor mit zweiteiligem Magnetanker
DE102009000284A1 (de) 2009-01-19 2010-07-22 Robert Bosch Gmbh Kraftstoffeinspritzventileinrichtung
DE102009027841A1 (de) 2009-07-20 2011-01-27 Robert Bosch Gmbh Kraftstoffeinspritzventil
DE102010043097A1 (de) 2010-10-29 2012-05-03 Robert Bosch Gmbh Druckregelventil

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07167012A (ja) * 1993-12-17 1995-07-04 Zexel Corp 燃料噴射装置

Also Published As

Publication number Publication date
EP3032090A1 (fr) 2016-06-15
DE102014225323A1 (de) 2016-06-09

Similar Documents

Publication Publication Date Title
EP3478957B1 (fr) Soupape d'injection d'un carburant gazeux
EP2531715B1 (fr) Ensemble soupape de commande d'un injecteur de carburant
EP2462335B1 (fr) Dispositif pour injection sous haute pression
EP2454467B1 (fr) Système de soupape
EP2743493B1 (fr) Injecteur de carburant
WO2014000961A1 (fr) Injecteur de carburant à actionneur magnétique
EP2278152B1 (fr) Soupape d'injection de carburant
EP3387247B1 (fr) Soupape d'admission à commande électromagnétique et pompe haute pression munie d'une soupape d'admission
WO2016034402A1 (fr) Soupape proportionnelle à commande électromagnétique
EP2494182B1 (fr) Dispositif d'injection de carburant
EP3032090B1 (fr) Clapet de commutation ou de régulation de pression pour un système d'injection de carburant
EP2733345A1 (fr) Soupape de régulation de pression pour un accumulateur haute pression d'un moteur à combustion
EP3420257B1 (fr) Électrovanne
DE102014224693B4 (de) Magnetventil zur Druckregelung und/oder Druckbegrenzung
EP3365551B1 (fr) Soupape d'admission à commande électromagnétique et pompe haute pression munie d'une soupape d'admission
DE102009000284A1 (de) Kraftstoffeinspritzventileinrichtung
EP2204570A1 (fr) Injecteur de carburant
EP2185807A1 (fr) Vanne de commande pour un injecteur
DE102008002605A1 (de) Direkt betätigter Kraftstoffinjektor
EP3423717B1 (fr) Soupape d'admission à commande électromagnétique et pompe haute pression munie d'une soupape d'admission
WO2017108343A1 (fr) Soupape d'admission à commande électromagnétique et pompe haute pression munie d'une soupape d'admission
DE102015214816A1 (de) Hochdruckanordnung
DE102014211469A1 (de) Düsenbaugruppe für einen Kraftstoffinjektor sowie Kraftstoffinjektor
DE102006047935A1 (de) Kraftstoffinjektor für eine Brennkraftmaschine
DE102019220172A1 (de) Kraftstoffinjektor für eine Brennkraftmaschine

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

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

AX Request for extension of the european patent

Extension state: BA ME

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

Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE

17P Request for examination filed

Effective date: 20161215

RBV Designated contracting states (corrected)

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

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

Free format text: STATUS: EXAMINATION IS IN PROGRESS

17Q First examination report despatched

Effective date: 20180810

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

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

Free format text: STATUS: GRANT OF PATENT IS INTENDED

INTG Intention to grant announced

Effective date: 20190521

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

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

Free format text: STATUS: THE PATENT HAS BEEN GRANTED

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

Free format text: NOT ENGLISH

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

REG Reference to a national code

Ref country code: DE

Ref legal event code: R096

Ref document number: 502015011446

Country of ref document: DE

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

Free format text: LANGUAGE OF EP DOCUMENT: GERMAN

REG Reference to a national code

Ref country code: AT

Ref legal event code: REF

Ref document number: 1223029

Country of ref document: AT

Kind code of ref document: T

Effective date: 20200215

RAP2 Party data changed (patent owner data changed or rights of a patent transferred)

Owner name: ROBERT BOSCH GMBH

REG Reference to a national code

Ref country code: NL

Ref legal event code: MP

Effective date: 20200108

REG Reference to a national code

Ref country code: LT

Ref legal event code: MG4D

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

Ref country code: NO

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: 20200408

Ref country code: LT

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: 20200108

Ref country code: NL

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: 20200108

Ref country code: PT

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: 20200531

Ref country code: FI

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: 20200108

Ref country code: RS

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: 20200108

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

Ref country code: GR

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: 20200409

Ref country code: HR

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: 20200108

Ref country code: BG

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: 20200408

Ref country code: LV

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: 20200108

Ref country code: IS

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: 20200508

Ref country code: SE

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: 20200108

REG Reference to a national code

Ref country code: DE

Ref legal event code: R097

Ref document number: 502015011446

Country of ref document: DE

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

Ref country code: CZ

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: 20200108

Ref country code: RO

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: 20200108

Ref country code: SM

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: 20200108

Ref country code: EE

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: 20200108

Ref country code: DK

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: 20200108

Ref country code: ES

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: 20200108

Ref country code: SK

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: 20200108

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: 20201009

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

Effective date: 20200108

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

Ref country code: PL

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: 20200108

Ref country code: SI

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: 20200108

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

Ref country code: MC

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: 20200108

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20201102

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

Ref country code: LU

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

Effective date: 20201102

REG Reference to a national code

Ref country code: BE

Ref legal event code: MM

Effective date: 20201130

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

Ref country code: CH

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

Effective date: 20201130

Ref country code: LI

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

Effective date: 20201130

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 NON-PAYMENT OF DUE FEES

Effective date: 20201130

Ref country code: IE

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

Effective date: 20201102

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 NON-PAYMENT OF DUE FEES

Effective date: 20201102

REG Reference to a national code

Ref country code: AT

Ref legal event code: MM01

Ref document number: 1223029

Country of ref document: AT

Kind code of ref document: T

Effective date: 20201102

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

Ref country code: AT

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

Effective date: 20201102

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

Ref country code: TR

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: 20200108

Ref country code: MT

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: 20200108

Ref country code: CY

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: 20200108

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

Ref country code: MK

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: 20200108

Ref country code: AL

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: 20200108

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

Ref country code: BE

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

Effective date: 20201130

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

Ref country code: DE

Payment date: 20250122

Year of fee payment: 10