WO2021028344A1 - Limiteur de débit d'un système d'injection de carburant et système d'injection de carburant - Google Patents

Limiteur de débit d'un système d'injection de carburant et système d'injection de carburant Download PDF

Info

Publication number
WO2021028344A1
WO2021028344A1 PCT/EP2020/072264 EP2020072264W WO2021028344A1 WO 2021028344 A1 WO2021028344 A1 WO 2021028344A1 EP 2020072264 W EP2020072264 W EP 2020072264W WO 2021028344 A1 WO2021028344 A1 WO 2021028344A1
Authority
WO
WIPO (PCT)
Prior art keywords
throttle
hole
flow limiter
fuel
section
Prior art date
Application number
PCT/EP2020/072264
Other languages
German (de)
English (en)
Inventor
Richard Pirkl
Razvan-Sorin STINGHE
Martin Seidl
Wolfgang MELDER
Thomas Atzkern
Igor Nesmjanowitsch
Fabian Schmid
Original Assignee
Liebherr-Components Deggendorf 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 Liebherr-Components Deggendorf Gmbh filed Critical Liebherr-Components Deggendorf Gmbh
Priority to EP20754226.7A priority Critical patent/EP4010580A1/fr
Publication of WO2021028344A1 publication Critical patent/WO2021028344A1/fr

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M63/00—Other fuel-injection apparatus having pertinent characteristics not provided for in groups F02M39/00 - F02M57/00 or F02M67/00; Details, component parts, or accessories of fuel-injection apparatus, not provided for in, or of interest apart from, the apparatus of groups F02M39/00 - F02M61/00 or F02M67/00; Combination of fuel pump with other devices, e.g. lubricating oil pump
    • F02M63/0003—Fuel-injection apparatus having a cyclically-operated valve for connecting a pressure source, e.g. constant pressure pump or accumulator, to an injection valve held closed mechanically, e.g. by springs, and automatically opened by fuel 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
    • F02M55/00—Fuel-injection apparatus characterised by their fuel conduits or their venting means; Arrangements of conduits between fuel tank and pump F02M37/00
    • F02M55/004—Joints; Sealings
    • F02M55/005—Joints; Sealings for high pressure conduits, e.g. connected to pump outlet or to injector inlet
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M61/00—Fuel-injectors not provided for in groups F02M39/00 - F02M57/00 or F02M67/00
    • F02M61/16—Details not provided for in, or of interest apart from, the apparatus of groups F02M61/02 - F02M61/14
    • F02M61/165—Filtering elements specially adapted in fuel inlets to injector
    • 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
    • F02M63/0054—Check 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
    • 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
    • F02M63/0205—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 for cutting-out pumps or injectors in case of abnormal operation of the engine or the injection apparatus, e.g. over-speed, break-down of fuel pumps or injectors ; for cutting-out pumps for stopping the engine
    • 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
    • F02M2200/18—Fuel-injection apparatus having means for maintaining safety not otherwise provided for
    • 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
    • F02M2200/80—Fuel injection apparatus manufacture, repair or assembly
    • F02M2200/8061—Fuel injection apparatus manufacture, repair or assembly involving press-fit, i.e. interference or friction fit

Definitions

  • the present invention relates to a flow limiter for a fuel injection system and a fuel injection system having such a flow limiter.
  • an injector has a nozzle needle (also: injector needle), which allows a high pressure fuel to come out when an outlet hole of the injector is opened.
  • this nozzle needle acts like a plug which, when it is raised, enables the fuel to escape. Accordingly, it is therefore necessary to lift this needle at relatively short time intervals and to slide it back into the outlet opening again after a short time.
  • Hydraulic servo valves also: pilot valves
  • solenoid valves are used to trigger the movement of this nozzle needle.
  • the servo valves are required for the controlled opening and closing of the nozzle needle. This is how it is possible to determine the start of injection, the injection duration and the end of injection.
  • pilot valves typically in the form of a servo valve, which control the nozzle needle and are themselves controlled via an electromagnetic valve.
  • a pressure level is built up in a control chamber interacting with the nozzle needle with the aid of the fuel available under high pressure, which pressure level acts on the nozzle needle in the closing direction.
  • This control chamber is typically connected to the high pressure area of the fuel via an inlet throttle.
  • this control chamber has a small, closable outlet throttle from which the fuel can escape. If he does this, the pressure in the control chamber and the closing force acting on the nozzle needle are reduced. This results in a movement of the nozzle needle, which releases the outlet opening at the injector tip.
  • the pilot valve includes the inlet throttle, the control chamber and the outlet throttle.
  • the outlet throttle of the control chamber is optionally closed or opened with the aid of an electromagnetic valve or another suitable valve.
  • the controlled opening of this outlet throttle in combination with the inlet throttle determines the pressure in the control chamber of the valve. As already briefly explained above, this pressure is then responsible for opening and closing the nozzle needle.
  • a closing element in technical jargon also: armature
  • armature against the outlet throttle presses to prevent the drainage of fuel and thereby the reduction of pressure in the control chamber from the drain throttle.
  • a flow limiter according to the invention for a fuel injection system has a throttle bushing with a through hole, a throttle insert which is movably received in a first section of the through hole, a sealing section in a second section of the through hole which is reduced in cross section compared to the first section of the through hole, and a spring element which is received in the through hole and urges the throttle insert away from the sealing portion. Furthermore, the Flow limiter characterized in that the throttle insert has, at its end facing the sealing section, a sealing surface which closes the through hole upon contact with the sealing section. If a fuel arranged downstream of the flow limiter closes!
  • the clamping mechanism of the flow restrictor intervenes.
  • fuel is present at high pressure on both sides of the throttle insert.
  • the high-pressure fuel reservoir typically the rail, is connected to the flow limiter on the side of the throttle insert facing away from the sealing section with the flow limiter. Since fuel is now applied to the throttle insert at identical pressure on both sides, the spring element arranged between the throttle insert and the sealing section acts so that the throttle insert is pushed away from the sealing section. The space created in this way forms a reservoir of fuel that can flow completely into the combustion chamber even in the event of a malfunction.
  • the throttle insert with its outer cross section cooperates sealingly with the inner cross section of the through hole and prevents a fluid from flowing between the outer cross section of the throttle insert and the inner cross section of the through hole.
  • the throttle insert has or generates a throttle line which provides a fluid connection along the through hole from the side of the throttle insert facing away from the sealing surface to the side of the throttle insert facing the sealing surface.
  • a throttle line can thus also be implemented which is not implemented through a bore in the throttle insert, but runs in the edge region of the throttle insert and the inner wall of the throttle bushing. To move the throttle line, it is only important to limit the flow of fuel under high pressure, so that the operating principle of the flow limiter works and this prevents the supply of fuel in the event of a permanent drainage of fuel.
  • the throttle line has a bore in the throttle insert that is parallel to the longitudinal direction of the throttle bushing and preferably has at least one further bore that is not run parallel to the longitudinal direction of the throttle bushing.
  • the throttle line is placed in the approximately cylindrical throttle insert from above (coming from the rail) centrally along the longitudinal direction and then goes off laterally to the lateral surface of the throttle insert.
  • the shape of the throttle line can accordingly assume an upside-down "T".
  • the second section of the through hole adjoins the first section of the through hole.
  • the adjoining of the two sections ensures that no other sections can be located in between.
  • the spring element is supported on the cross-sectional reduction of the second section and protrudes into the first section of the through hole.
  • a stop element can be provided which limits a stroke of the throttle piece away from the sealing section, with the stop element preferably being pressed into the through hole or attached to the end of the through hole.
  • the stroke of the throttle insert is limited not only by the sealing section but also by a stop element on the side facing away from it.
  • the spring element then presses the throttle insert against this stop element and thus creates a space of a defined size that is proportional to the maximum amount of fuel that can flow off. This amount or the stroke of the throttle insert is selected so that no serious damage is caused even if the fuel contained therein and the fuel that continues to flow through the throttle line until sealing is completely emptied.
  • a filter element for filtering fuel is preferably provided, which is arranged on the side of the through hole facing the sealing surface and is preferably fastened with a press fit in the through hole.
  • the filter element is pressed or inserted into the sealing section with its narrowed cross section and protrudes downstream, that is to say away from the throttle insert. Fluid flowing downstream from the throttle insert must therefore pass through the filter element so that larger particles in the fuel are filtered.
  • the invention further comprises a fuel injector with a flow limiter according to one of the aspects discussed above, the flow limiter being arranged between a fuel supply line, the so-called rail, and the fuel injector.
  • This arrangement ensures that the amount of fuel that can be dispensed by the injector is limited, so that fuel cannot flow out continuously even in the event of a malfunction in the injector. It can be provided that the flow limiter is pressed into the fuel supply line by inserting the throttle bushing with its outside into the fuel supply line in a sealing manner. Pressing in is a particularly simple and economical type of connection for attaching the flow limiter.
  • the flow limiter is preferably arranged outside the injector and fastened to the housing of the injector.
  • the flow limiter can be fastened by means of a union nut. This union nut interacts with an external thread on the injector housing and presses the flow limiter against the injector.
  • the fuel supply line opens into the union nut.
  • the fuel feed line can have a collar-like expansion at its end provided on the flow limiter, which is pressed against the flow limiter by means of the union nut.
  • the flow limiter is arranged inside the injector by inserting the throttle bushing with its outside in a sealing manner in a housing of the injector, preferably inserting it into a feed line of the injector.
  • FIG. 1 a shows a flow limiter 1 in a sectional view which can be attached outside an injector.
  • This has a throttle bushing 2 in which a through hole 3 is arranged in the longitudinal direction.
  • This through hole 3 has a first section which, seen in FIG. 1a, makes up approximately the upper 75% of the through hole and in which a throttle insert 4 is movably received.
  • This throttle insert 4 can be moved in a sliding manner in the through hole 3 depending on the prevailing pressure conditions. A positioning of the throttle insert 4 is shown, in which the maximum removed position has been assumed by a sealing section 5.
  • a spring element 6 is provided, which is supported on the sealing section 5, which has a reduced cross-section, and pushes the throttle insert 4 away.
  • the stroke of the throttle insert 4 is limited by the stop element 12, which defines the maximum deflection of the throttle insert 4 away from the sealing section 5.
  • This stop element 12 is fastened to the throttle bushing 2 by means of a union nut 11. It can further be provided that this union nut 11 leads a fuel supply line 10 (typically the rail) to the flow limiter 1 via an internal thread or an alternative fastening option, so that fuel is permanently present under high pressure on the side of the throttle insert 4 facing away from the sealing section 5.
  • a fuel supply line 10 typically the rail
  • the fuel under high pressure flows through the throttle line 8 downstream to the outlet side of the flow limiter 1. If a downstream fuel injector is in a closed state, after the downstream line spaces have filled up, fuel will be present at the same high pressure on both sides of the throttle insert. The compressive force of the spring element 6 then leads to the throttle insert 4 being urged towards the stop element 12. The fuel continues to flow via a throttle line 8, which runs through the throttle insert 4 in FIG. 1 a and then runs outward perpendicularly to the longitudinal direction of the throttle insert 4.
  • the precise configuration of the throttle line 8 for the present invention may also be subject to certain variations. It must only be ensured that in a sealing state of the flow limiter 1, in which the throttle insert 4 is in contact with the sealing section 5, the throttle line 8 must not have a fluidic connection to a section downstream of the sealing section 5.
  • FIG. 1 b shows a view of FIG. 1 a rotated by 90 °. In this illustration, the components of the throttle line 8 going out to the left and right side can be seen.
  • FIG. 1c shows a possible side view of the flow limiter 1. It can be seen that the union nut 11 is bent so that it can be tightened in the external thread of the throttle bushing 2 with a wrench.
  • the throttle bushing 2 itself also has corresponding bevels in its outer circumference so that it can be fixed when the union nut 11 is tightened.
  • FIG. 2a shows a sectional view of a flow limiter 1 which can be attached inside an injector.
  • the basic structure of the flow limiter 1 is the same as in the previously considered model.
  • the stop element 12 which is now located in the interior of the throttle bushing 2 and is fixed there.
  • the fixation can be implemented by pressing in or gluing or the like.
  • the outer contour of the throttle bushing 2 is also changed, since it is now essentially cylindrical, the outer circumference having increased slightly in the lower area near the sealing section 5.
  • a filter element 9 is now also present, which is pressed into the sealing section 5 with a reduced cross section. Fuel flowing through the throttle bushing 2 is therefore inevitably filtered, so that undesired foreign particles are filtered out.
  • 2b shows a view of the flow limiter 1 rotated by 90 °, in which the course of the throttle line 8 can also be seen very well.
  • 2c is a possible external view of the flow limiter 1, by means of which the two cylinder jacket surfaces with different radii can be recognized.
  • Figure 2d shows a flow limiter in a state received within a fuel injector.
  • the flow limiter 1 is pressed with its radially larger part into a pressure piece 13 of the injector and extends with its slimmer part into the fuel pipe, which delivers fuel at high pressure. It is clear to a person skilled in the art that, as an alternative or in addition to this, the flow limiter 1 can also be pressed into the fuel pipe.

Landscapes

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

Abstract

La présente invention concerne un limiteur de débit d'un système d'injection de carburant, lequel limiteur de débit comprend : une douille d'étranglement, qui a un trou traversant ; un insert d'étranglement, qui est maintenu de façon mobile dans une première partie du trou traversant ; une partie d'étanchéité dans une seconde partie du trou traversant, qui a une section transversale réduite par rapport à la première partie du trou traversant ; et un élément ressort, qui est maintenu dans le trou traversant et pousse l'insert d'étranglement loin de la partie d'étanchéité. L'invention est caractérisée en ce que l'insert d'étranglement présente, au niveau de son extrémité la plus proche de la partie d'étanchéité, une surface d'étanchéité, qui ferme le trou traversant lorsque la surface d'étanchéité est en contact avec la partie d'étanchéité.
PCT/EP2020/072264 2019-08-09 2020-08-07 Limiteur de débit d'un système d'injection de carburant et système d'injection de carburant WO2021028344A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP20754226.7A EP4010580A1 (fr) 2019-08-09 2020-08-07 Limiteur de débit d'un système d'injection de carburant et système d'injection de carburant

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102019121549.8 2019-08-09
DE102019121549.8A DE102019121549A1 (de) 2019-08-09 2019-08-09 Durchflussbegrenzer für ein Kraftstoffeinspritzsystem sowie Kraftstoffeinspritzsystem

Publications (1)

Publication Number Publication Date
WO2021028344A1 true WO2021028344A1 (fr) 2021-02-18

Family

ID=72046889

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2020/072264 WO2021028344A1 (fr) 2019-08-09 2020-08-07 Limiteur de débit d'un système d'injection de carburant et système d'injection de carburant

Country Status (3)

Country Link
EP (1) EP4010580A1 (fr)
DE (1) DE102019121549A1 (fr)
WO (1) WO2021028344A1 (fr)

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19860476A1 (de) * 1998-12-28 2000-07-06 Bosch Gmbh Robert Kraftstoffeinspritzanlage
US20030217726A1 (en) * 2002-05-23 2003-11-27 Lawrence Charles Kennedy High-pressure connector having an integrated flow limiter and filter
DE10328119A1 (de) * 2002-06-24 2004-02-05 Denso Corp., Kariya Sicherung und Verfahren zu deren Herstellung
US20040094127A1 (en) * 2002-11-15 2004-05-20 Denso Corporation Accumulation type fuel injection system
EP1653076A1 (fr) * 2004-10-29 2006-05-03 Denso Corporation Amortisseur d'écoulement pour un dispositif d'injection à une rampe commune
US20110315117A1 (en) * 2010-06-25 2011-12-29 Gerstner Michael D Fuel system having accumulators and flow limiters
DE102014002281A1 (de) * 2013-03-07 2014-09-11 Caterpillar Inc. Steigleitungsverbinder für ein Brennstoffsystem und Verfahren dafür

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4414242A1 (de) * 1994-04-23 1995-10-26 Bosch Gmbh Robert Kraftstoffeinspritzeinrichtung für Brennkraftmaschinen
DE102005062547A1 (de) * 2005-12-27 2007-07-05 Robert Bosch Gmbh Kraftstoff-Einspritzvorrichtung, insbesondere Pumpe-Düse-System, für eine Brennkraftmaschine
DE102006003639A1 (de) * 2006-01-26 2007-08-02 Robert Bosch Gmbh Hochdruckspeicherkörper mit integriertem Verteilerblock
DE102015220028A1 (de) * 2015-10-15 2017-04-20 Robert Bosch Gmbh Durchflussbegrenzer für einen Injektor

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19860476A1 (de) * 1998-12-28 2000-07-06 Bosch Gmbh Robert Kraftstoffeinspritzanlage
US20030217726A1 (en) * 2002-05-23 2003-11-27 Lawrence Charles Kennedy High-pressure connector having an integrated flow limiter and filter
DE10328119A1 (de) * 2002-06-24 2004-02-05 Denso Corp., Kariya Sicherung und Verfahren zu deren Herstellung
US20040094127A1 (en) * 2002-11-15 2004-05-20 Denso Corporation Accumulation type fuel injection system
EP1653076A1 (fr) * 2004-10-29 2006-05-03 Denso Corporation Amortisseur d'écoulement pour un dispositif d'injection à une rampe commune
US20110315117A1 (en) * 2010-06-25 2011-12-29 Gerstner Michael D Fuel system having accumulators and flow limiters
DE102014002281A1 (de) * 2013-03-07 2014-09-11 Caterpillar Inc. Steigleitungsverbinder für ein Brennstoffsystem und Verfahren dafür

Also Published As

Publication number Publication date
DE102019121549A1 (de) 2021-02-11
EP4010580A1 (fr) 2022-06-15

Similar Documents

Publication Publication Date Title
DE602005000662T2 (de) Einspritzventil einer Brennkraftmaschine
DE102018200612B4 (de) Hochdruckanschluss für eine Kraftstoffhochdruckpumpe sowie Kraftstoffhochdruckpumpe
EP2129903B1 (fr) Injecteur de carburant doté d'un étranglement de sortie supplémentaire ou doté d'une disposition améliorée de ce dernier dans la soupape de commande
EP3194757A1 (fr) Injecteur de carburant pour moteurs à combustion interne
EP2206912B1 (fr) Injecteur de carburant
EP1952011B1 (fr) Dispositif d'injection de carburant pour moteur a combustion interne a injection directe de carburant
AT500774B1 (de) Vorrichtung zum einspritzen von kraftstoff in den brennraum einer brennkraftmaschine
DE102007019606B3 (de) Strömungsverbinder für ein Ventil
EP2011995B1 (fr) Injecteur doté d'un élément d'aération s'ouvrant vers l'extérieur
DE10046662B4 (de) Kraftstoffeinspritzventil mit einem Druckhalteventil
EP4010580A1 (fr) Limiteur de débit d'un système d'injection de carburant et système d'injection de carburant
EP2354527B1 (fr) Injecteur de carburant
EP2275666B1 (fr) Injecteur de carburant doté d'une soupape de distribution à pression compensée
DE102005023179B3 (de) Einspritzventil mit einem erhöhten Druck im Ablaufraum
DE102006050033A1 (de) Injektor, insbesondere Common-Rail-Injektor
DE10220931C1 (de) Injektor zur Kraftstoffeinspritzung
WO2019174815A1 (fr) Élément filtrant pour un milieu liquide et pompe pourvue d'un élément filtrant
EP1073836B1 (fr) Ensemble buse pour le dosage de liquides ou de gaz
EP4172486A1 (fr) Limiteur de débit d'un système d'injection de carburant et système d'injection de carburant comprenant un limiteur de débit
DE10261415B3 (de) Druckanpassungsvorrichtung
DE10160490B4 (de) Kraftstoff-Einspritzvorrichtung, Kraftstoffsystem sowie Brennkraftmaschine
EP0806246A1 (fr) Vanne d'arrêt pour buse et buse de pulvérisation par pression munie d'une telle vanne
EP3775527B1 (fr) Injecteur servant à l'injection de carburant
DE102005022535A1 (de) Einspritzventil und Düsenbaugruppe für ein Einspritzventil
DE10147830A1 (de) Kraftstoffinjektor

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 20754226

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

ENP Entry into the national phase

Ref document number: 2020754226

Country of ref document: EP

Effective date: 20220308