EP3622170A1 - Soupape servant à doser un fluide - Google Patents

Soupape servant à doser un fluide

Info

Publication number
EP3622170A1
EP3622170A1 EP18722483.7A EP18722483A EP3622170A1 EP 3622170 A1 EP3622170 A1 EP 3622170A1 EP 18722483 A EP18722483 A EP 18722483A EP 3622170 A1 EP3622170 A1 EP 3622170A1
Authority
EP
European Patent Office
Prior art keywords
armature
fluid channel
valve
longitudinal axis
face
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP18722483.7A
Other languages
German (de)
English (en)
Inventor
Stefan Cerny
Murat Ucal
Jochen Rose
Andreas Glaser
Matthias Boee
Axel Heinstein
Nico HERRMANN
Martin Buehner
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
Priority to EP22157406.4A priority Critical patent/EP4033087B1/fr
Priority to EP20191515.4A priority patent/EP3779172B1/fr
Publication of EP3622170A1 publication Critical patent/EP3622170A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M61/00—Fuel-injectors not provided for in groups F02M39/00 - F02M57/00 or F02M67/00
    • F02M61/04—Fuel-injectors not provided for in groups F02M39/00 - F02M57/00 or F02M67/00 having valves, e.g. having a plurality of valves in series
    • F02M61/10—Other injectors with elongated valve bodies, i.e. of needle-valve type
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M51/00—Fuel-injection apparatus characterised by being operated electrically
    • F02M51/06—Injectors peculiar thereto with means directly operating the valve needle
    • F02M51/061—Injectors peculiar thereto with means directly operating the valve needle using electromagnetic operating means
    • F02M51/0625—Injectors peculiar thereto with means directly operating the valve needle using electromagnetic operating means characterised by arrangement of mobile armatures
    • F02M51/0664—Injectors peculiar thereto with means directly operating the valve needle using electromagnetic operating means characterised by arrangement of mobile armatures having a cylindrically or partly cylindrically shaped armature, e.g. entering the winding; having a plate-shaped or undulated armature entering the winding
    • F02M51/0685—Injectors peculiar thereto with means directly operating the valve needle using electromagnetic operating means characterised by arrangement of mobile armatures having a cylindrically or partly cylindrically shaped armature, e.g. entering the winding; having a plate-shaped or undulated armature entering the winding the armature and the valve being allowed to move relatively to each other or not being attached to each other
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B1/00—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means
    • B05B1/30—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to control volume of flow, e.g. with adjustable passages
    • B05B1/3033—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to control volume of flow, e.g. with adjustable passages the control being effected by relative coaxial longitudinal movement of the controlling element and the spray head
    • B05B1/304—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to control volume of flow, e.g. with adjustable passages the control being effected by relative coaxial longitudinal movement of the controlling element and the spray head the controlling element being a lift valve
    • B05B1/3046—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to control volume of flow, e.g. with adjustable passages the control being effected by relative coaxial longitudinal movement of the controlling element and the spray head the controlling element being a lift valve the valve element, e.g. a needle, co-operating with a valve seat located downstream of the valve element and its actuating means, generally in the proximity of the outlet orifice
    • B05B1/3053—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to control volume of flow, e.g. with adjustable passages the control being effected by relative coaxial longitudinal movement of the controlling element and the spray head the controlling element being a lift valve the valve element, e.g. a needle, co-operating with a valve seat located downstream of the valve element and its actuating means, generally in the proximity of the outlet orifice the actuating means being a 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
    • F02M51/00—Fuel-injection apparatus characterised by being operated electrically
    • F02M51/06—Injectors peculiar thereto with means directly operating the valve needle
    • F02M51/061—Injectors peculiar thereto with means directly operating the valve needle using electromagnetic operating means
    • F02M51/0625—Injectors peculiar thereto with means directly operating the valve needle using electromagnetic operating means characterised by arrangement of mobile armatures
    • F02M51/0664—Injectors peculiar thereto with means directly operating the valve needle using electromagnetic operating means characterised by arrangement of mobile armatures having a cylindrically or partly cylindrically shaped armature, e.g. entering the winding; having a plate-shaped or undulated armature entering the winding
    • F02M51/0671—Injectors peculiar thereto with means directly operating the valve needle using electromagnetic operating means characterised by arrangement of mobile armatures having a cylindrically or partly cylindrically shaped armature, e.g. entering the winding; having a plate-shaped or undulated armature entering the winding the armature having an elongated valve body attached thereto
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M61/00—Fuel-injectors not provided for in groups F02M39/00 - F02M57/00 or F02M67/00
    • F02M61/16—Details not provided for in, or of interest apart from, the apparatus of groups F02M61/02 - F02M61/14
    • F02M61/18—Injection nozzles, e.g. having valve seats; Details of valve member seated ends, not otherwise provided for
    • F02M61/1893—Details of valve member ends not covered by groups F02M61/1866 - F02M61/188
    • 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
    • F02M2200/30—Fuel-injection apparatus having mechanical parts, the movement of which is damped
    • F02M2200/304—Fuel-injection apparatus having mechanical parts, the movement of which is damped using hydraulic 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
    • F02M55/00—Fuel-injection apparatus characterised by their fuel conduits or their venting means; Arrangements of conduits between fuel tank and pump F02M37/00
    • F02M55/008—Arrangement of fuel passages inside of injectors

Definitions

  • the invention relates to a valve for metering a fluid, in particular a
  • Fuel injection valve for internal combustion engines Specifically, the invention relates to the field of injectors for fuel injection systems of motor vehicles, in which there is preferably a direct injection of fuel into combustion chambers of an internal combustion engine.
  • a valve for metering fluid is known.
  • the known valve has an electromagnet for actuating a valve needle controlling an orifice.
  • the electromagnet is used to operate one on one
  • Valve needle movable anchor has a valve needle adjacent to the bore, which forms a spring receptacle for a Vorhubfeder.
  • the valve according to the invention with the features of claim 1 has the advantage that an improved design and mode of operation are made possible.
  • an improved guidance between the armature and the valve needle, in particular a damping and calming of the armature, and at the same time an advantageous passage of the fluid through an armature space can take place.
  • the fluid serving as armature armature is not fixedly connected to the valve needle, but mounted between stops flying.
  • a stop may be formed on a stop element, which can be realized as a stop sleeve and / or stop ring.
  • the stop element may also be formed integrally with the valve needle.
  • the anchor is in Hibernation adjusted to a relative to the valve needle stationary stop, so that the armature rests there.
  • the complete armature free travel is then available as an acceleration section, whereby the spring is shortened during acceleration.
  • the Ankerokweg can be specified via the axial clearance between the anchor and the two stops.
  • a guide length between the armature and the valve needle can be increased by the spring receptacle is configured by an annular groove not adjacent to the valve needle.
  • the spring receptacle can still advantageously be configured close to the longitudinal axis, that is to say with a small radial distance from the longitudinal axis, in order to allow an advantageous introduction of the fluid from the first region of the armature space into the spring receptacle in the case of a corresponding design of the valve.
  • End positions of the anchor on the stop elements also a free
  • Anchor calming desired damping is reduced. Especially when closing the valve, this can lead to the fact that in terms of the desired driving times too long a period for sufficient reassurance of the armature is required. With regard to possibly very short pause times, for example less than 1, 2 ms, as they may be desired in a multiple injection, thus resulting in significant
  • a proposed fluid channel an advantageous passage of fluid through the armature space and at the same time an impairment of a damping behavior can be reduced, which is particularly advantageous for a calming of the armature when closing the valve.
  • This can also by the structural design of the stop surface on the stop element at least largely uninfluenced by the passage of the fluid through the anchor setting or setting the desired damping can be achieved.
  • Fluid channel has the advantage that at the first end side of the armature advantageously a longitudinal axis near discharge of the fluid can be carried in the fluid channel, while on the second end side of the armature laying the opening of the fluid channel in a further remote from the valve needle area is possible ,
  • a longitudinal axis near discharge of the fluid can be carried in the fluid channel, while on the second end side of the armature laying the opening of the fluid channel in a further remote from the valve needle area is possible
  • an overlap of the opening of the fluid channel can be reduced to the second end face of the armature with a stop surface on the second stop member or completely avoided.
  • the maximum far inward point of the second opening of the fluid channel may lie radially outside a stop surface of the second stop element.
  • the development according to claim 5 has the advantage that on the one hand
  • Fluid channels are realized, as is possible in particular according to the embodiment according to claim 6.
  • an optimization in terms of a tilt angle, with which an axis of the oblique bore is tilted relative to the longitudinal axis, can be realized in an advantageous manner, wherein the tilt angle
  • the opening on the second end face of the armature can be kept optimally small.
  • the cross-section available for the passage of the fluid along the coaxial direction can thereby be increased over the entire course through the armature as a result of the design of the oblique bore, if this makes sense in the respective application.
  • the fluid channel can be configured in an advantageous manner by production technology easy to be realized coaxial blind holes.
  • Stop surface on the relevant stop element to no overlap between the relevant opening or the relevant openings of the at least one fluid channel and the stop surface on the stop element more comes. Thereby o the maximum damping surface is available.
  • FIG. 2 shows a valve in an excerpt, schematic sectional view according to a second embodiment.
  • FIG. 3 shows a valve in an excerptional, schematic sectional view according to a third exemplary embodiment
  • FIG. 4 shows a valve in an excerptional, schematic sectional view corresponding to a fourth exemplary embodiment.
  • valve 1 shows a valve 1 for metering a fluid in a bleed-off
  • the valve 1 may be formed in particular as a fuel injection valve 1.
  • a preferred application is a fuel injection system, in which such fuel injection valves 1 are designed as high-pressure injection valves 1 and are used for direct injections of fuel into associated combustion chambers of the internal combustion engine.
  • liquid or gaseous fuels can be used as the fuel.
  • the valve 1 is suitable for metering liquid or gaseous fluids.
  • the valve 1 has a housing (valve housing) 2, in which a stationary inner pole 3 is arranged. A in this embodiment within the housing. 2
  • valve needle 5 is guided with respect to the housing 2 along a longitudinal axis 4.
  • an armature (armature) 6 is arranged at the valve needle 5.
  • a stop element 7 and a further stop element 8 are also arranged.
  • Stop elements 7, 8 are stop surfaces 7 ', 8' is formed.
  • the armature 6 can in this case be moved relative to the valve needle 5 between the stop elements 7, 8 during an actuation along the longitudinal axis 4, with an anchor path 9 being predetermined.
  • the longitudinal axis 4 can be used here as a longitudinal axis 4 of the valve needle 5 or as
  • the armature 6, the inner pole 3 and a solenoid, not shown, are components of an electromagnetic actuator 10th
  • a valve closing body 11 is formed, which cooperates with a valve seat surface 12 to a sealing seat.
  • fuel can be injected via the open sealing seat and at least one nozzle opening 13 into a space, in particular a combustion space.
  • the valve 1 has a return spring 14, which the valve needle 5 via the
  • Stop element 7 adjusted to its initial position in which the sealing seat is closed.
  • the armature 6 is based on a cylindrical basic shape 20 with a through hole 21, wherein the armature 6 is guided on the through hole 21 on the valve needle 5.
  • the basic shape 20 of the armature 6 has a length 24 between a pole 3 facing the first end face 22 of the armature 6 and one of the inner pole. 3
  • the armature 6 is arranged in an armature space 16.
  • the first end face 22 adjoins a first area 17 of the armature space 16.
  • the second end face 23 adjoins a second area 18 of the armature space 16.
  • fuel is allowed to pass through the armature via at least a portion of its length 24 through at least one fluid channel 15.
  • the armature 6 has a spring receptacle 25.
  • the fluid channel 15 in this case includes the spring seat 25 with a.
  • the fluid channel 15 leads at least over part of the spring receptacle 25.
  • the spring receptacle 25 is opened on the end face 22 of the armature 6.
  • a spring support surface 26 on which a spring 27 partially arranged in the spring receiver 25 is supported is formed by the bottom 26 of the spring receiver 25.
  • the spring 27 is further supported on the stop surface 7 'of the stopper 7 from. Upon actuation of the armature 6, the spring 27 is shortened relative to its initial length, wherein it can completely dip into the spring seat 25. Furthermore, the spring 27 in this embodiment with beveled spring ends 43,
  • the guide length of the armature 6 on the valve needle 5 is equal to the length 24 of the armature 6 between its end faces 22, 23rd
  • the guide of the valve needle 5 with respect to the longitudinal axis 4 and with respect to the housing 2 results in this embodiment via the stop element. 7
  • the stop element 7 is guided in a guide region 30 on an inner bore 31 of the inner pole 3.
  • the guidance of the valve needle 5 can additionally or alternatively also be realized via the armature 6.
  • the outer side 32 of the armature 6 extends at least partially to the inner side 33 of the housing 2.
  • an annular gap between the stop element 7 and the inner pole 3 can be realized.
  • the fluid channel 15 has a helical bore 50.
  • the fluid channel 15 preferably has exactly one oblique bore 50. The fluid channel 15 then leads via the oblique bore 50 and at least one part 51 of the spring receptacle 25.
  • the oblique bore 50 is configured in the armature 6 so that it extends along the coaxial direction 19 radially outward, ie away from the longitudinal axis 4, wherein in the plane between the coaxial direction 19 and an axis 53 of the oblique bore 50 is an inclination angle 54 results.
  • the configuration of the oblique bore 50 is not limited to that the axis 53 lies in the same plane as the longitudinal axis 4 of the valve needle 5, as is the case in the illustrated embodiment with the plane given by the plane of the drawing.
  • the oblique bore 50 extends in this embodiment from the first end face 22 of the armature 6 to the second end face 23 of the armature 6.
  • Fluid channel 15 intersects this inner part 57 of the second end face 23. In this way, a large damping surface between the second stop surface 8 'and the second end face 23 can be realized.
  • Federage 25 along the longitudinal axis 4 is blended with the spring retainer 25, results in a favorable flow behavior and with respect to the spring retainer 25 even enlarged first opening 55 of the fluid channel 15. Specifically, this is a point 60 at which the first opening 55 radially maximum of the A point 61 at which the first opening 55 has a minimum distance from the longitudinal axis 4, however, is still at the edge of the
  • the oblique bore 50 is also configured so that the bottom 26 of the spring retainer 25 is cut by the oblique bore 50.
  • the spring seat 25 can be used advantageously for passing the fuel and integrated over its entire length 58 in the fluid channel 15.
  • Fig. 2 shows a valve 1 in an excerptive, schematic sectional view according to a second embodiment.
  • the partial surface 56 'of the armature 6 can in this case be configured via a circumferential groove 85 or individual countersunk holes. Specifically, first the partial surface 56 'on the second end face 23 of the armature 6 can be configured, and then the oblique bore 50 can be drilled starting from the second end face 23. This allows a right-angled impact of a drill bit on the part surface 56 'of the armature 6.
  • Fig. 3 shows a valve 1 in an excerpt, schematic sectional view according to a third embodiment.
  • a bevel 66 is configured on the armature 6, which has the second end face 23 at its
  • valve 1 in an excerptional, schematic sectional representation according to a fourth exemplary embodiment.
  • the fluid channel 15 has a first coaxial blind hole 71 and a second coaxial
  • the first coaxial blind hole 71 extends from the first end face 22 in the coaxial direction 19.
  • the second coaxial blind hole 72 extends from the second end face 23 against the coaxial direction 19.
  • An intersection region 73 can in this case be arranged close to the bottom 26 of the spring receptacle 25 viewed along the longitudinal axis 4. This results in favorable flow conditions.
  • the blind holes 71, 72 and at least a portion 51 of the spring seat 25 can be used.
  • the spring receiver 25 can advantageously be integrated at least partially into the fluid channel 15.
  • the fluid is guided in the coaxial direction 19 viewed along the longitudinal axis 4 radially outward. This also results in an advantageous introduction of the fluid, starting from the inner bore 31 of the Inner pole 3 in the fluid channel 15 and at the same time an advantageous damping on the second stop element eighth
  • Longitudinal axis 4 is located as a radially outwardly of the longitudinal axis 4 far outermost point 62 of a second opening 56 of the fluid channel 15. Further, it is advantageous if a
  • Longitudinal axis 4 is located as a centroid 65 of a second opening 56 of the
  • the exit surface 80 can lie in an annular surface 82 running around with respect to the longitudinal axis 4, wherein the annular surface 82 is designed as a partial surface 82 of a cone-shaped jacket 83 rotationally symmetrical with respect to the longitudinal axis 4 or as a partial surface 82 of a circular disc 84 oriented perpendicular to the longitudinal axis 4.
  • This is possible, for example, by the configuration of a peripheral groove 85 or a chamfer 66.

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)
  • Magnetically Actuated Valves (AREA)
  • Fuel-Injection Apparatus (AREA)
  • Sampling And Sample Adjustment (AREA)
  • Catching Or Destruction (AREA)
  • Measuring Volume Flow (AREA)

Abstract

L'invention concerne une soupape (1) servant à doser un fluide, qui fait office en particulier de soupape d'injection de carburant pour des moteurs à combustion interne. La soupape selon l'invention comprend un actionneur (10) électromagnétique, qui comporte une armature (6) disposée dans un espace (16) d'armature, et un pointeau (5) de soupape pouvant être actionné par l'actionneur (10) au moyen de l'armature (6). L'armature (6) est guidée sur le pointeau de soupape (5). Un premier élément de butée (7) coopérant en fonctionnement avec un premier côté frontal (22) de l'armature (6) et un deuxième élément de butée (8) coopérant en fonctionnement avec un deuxième côté frontal (23) de l'armature (6) sont disposés sur le pointeau de soupape (5) et limitent un déplacement de l'armature (6) par rapport au pointeau de soupape (5). L'armature (6) comporte un logement de ressort (25) ouvert en direction du premier côté frontal (22) de l'armature (6), dans lequel un ressort (27) prenant appui sur l'élément de butée (7) est inséré. La soupape (1) est dans le cas présent configurée de telle sorte que l'armature (6) comporte au moins un canal de fluide (15) qui permet en fonctionnement un acheminement de fluide entre une première zone (17) jouxtant le premier côté frontal (22) de l'armature (6), de l'espace d'armature (16) et une deuxième zone (18) joutant le deuxième côté frontal (23) de l'armature (6), de l'espace d'armature (16), que le canal de fluide (15) incorpore au moins en partie le logement de ressort (25), et que le canal de fluide (15) s'étend au moins par endroits radialement vers l'extérieur le long d'une direction (19) orientée depuis le premier côté frontal (22) vers le deuxième côté frontal (23) et coaxiale par rapport à un axe longitudinal (4).
EP18722483.7A 2017-05-10 2018-05-03 Soupape servant à doser un fluide Withdrawn EP3622170A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP22157406.4A EP4033087B1 (fr) 2017-05-10 2018-05-03 Soupape de distribution d'un fluide
EP20191515.4A EP3779172B1 (fr) 2017-05-10 2018-05-03 Soupape de dosage d'un fluide

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102017207845.6A DE102017207845A1 (de) 2017-05-10 2017-05-10 Ventil zum Zumessen eines Fluids
PCT/EP2018/061296 WO2018206382A1 (fr) 2017-05-10 2018-05-03 Soupape servant à doser un fluide

Related Child Applications (2)

Application Number Title Priority Date Filing Date
EP22157406.4A Division EP4033087B1 (fr) 2017-05-10 2018-05-03 Soupape de distribution d'un fluide
EP20191515.4A Division EP3779172B1 (fr) 2017-05-10 2018-05-03 Soupape de dosage d'un fluide

Publications (1)

Publication Number Publication Date
EP3622170A1 true EP3622170A1 (fr) 2020-03-18

Family

ID=62116435

Family Applications (3)

Application Number Title Priority Date Filing Date
EP22157406.4A Active EP4033087B1 (fr) 2017-05-10 2018-05-03 Soupape de distribution d'un fluide
EP18722483.7A Withdrawn EP3622170A1 (fr) 2017-05-10 2018-05-03 Soupape servant à doser un fluide
EP20191515.4A Active EP3779172B1 (fr) 2017-05-10 2018-05-03 Soupape de dosage d'un fluide

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP22157406.4A Active EP4033087B1 (fr) 2017-05-10 2018-05-03 Soupape de distribution d'un fluide

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP20191515.4A Active EP3779172B1 (fr) 2017-05-10 2018-05-03 Soupape de dosage d'un fluide

Country Status (7)

Country Link
US (1) US11852106B2 (fr)
EP (3) EP4033087B1 (fr)
JP (2) JP2020519805A (fr)
KR (2) KR20230043253A (fr)
CN (2) CN114876689B (fr)
DE (1) DE102017207845A1 (fr)
WO (1) WO2018206382A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11655786B2 (en) 2021-05-28 2023-05-23 Stanadyne Llc Fuel injector

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EP3009663B1 (fr) * 2014-10-15 2020-06-24 Vitesco Technologies GmbH Ensemble de soupape et injecteur de fluide
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Also Published As

Publication number Publication date
KR20200003824A (ko) 2020-01-10
EP3779172A1 (fr) 2021-02-17
CN114876689A (zh) 2022-08-09
US20200386199A1 (en) 2020-12-10
EP4033087B1 (fr) 2023-08-30
KR20230043253A (ko) 2023-03-30
CN110612390A (zh) 2019-12-24
CN114876689B (zh) 2023-09-01
US11852106B2 (en) 2023-12-26
WO2018206382A1 (fr) 2018-11-15
DE102017207845A1 (de) 2018-11-15
CN110612390B (zh) 2022-05-31
JP2020519805A (ja) 2020-07-02
EP3779172B1 (fr) 2022-07-06
JP7270684B2 (ja) 2023-05-10
EP4033087A1 (fr) 2022-07-27
JP2021179214A (ja) 2021-11-18

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