EP4170154A1 - Disque atomiseur et procédé de fabrication d'un disque atomiseur - Google Patents

Disque atomiseur et procédé de fabrication d'un disque atomiseur Download PDF

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Publication number
EP4170154A1
EP4170154A1 EP21203995.2A EP21203995A EP4170154A1 EP 4170154 A1 EP4170154 A1 EP 4170154A1 EP 21203995 A EP21203995 A EP 21203995A EP 4170154 A1 EP4170154 A1 EP 4170154A1
Authority
EP
European Patent Office
Prior art keywords
disk
spray hole
fluid
atomizer
disc
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.)
Pending
Application number
EP21203995.2A
Other languages
German (de)
English (en)
Inventor
Franz Leuenberger
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.)
Heinz Haenggi Stanztechnik
Original Assignee
Heinz Haenggi Stanztechnik
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 Heinz Haenggi Stanztechnik filed Critical Heinz Haenggi Stanztechnik
Priority to EP21203995.2A priority Critical patent/EP4170154A1/fr
Priority to PCT/EP2022/055440 priority patent/WO2023066530A1/fr
Publication of EP4170154A1 publication Critical patent/EP4170154A1/fr
Pending legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M25/00—Engine-pertinent apparatus for adding non-fuel substances or small quantities of secondary fuel to combustion-air, main fuel or fuel-air mixture
    • F02M25/022—Adding fuel and water emulsion, water or steam
    • F02M25/0221—Details of the water supply system, e.g. pumps or arrangement of valves
    • F02M25/0225—Water atomisers or mixers, e.g. using ultrasonic waves
    • 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
    • F02M61/162—Means to impart a whirling motion to fuel upstream or near discharging orifices
    • F02M61/163—Means being injection-valves with helically or spirally shaped grooves
    • 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
    • F02M61/1806—Injection nozzles, e.g. having valve seats; Details of valve member seated ends, not otherwise provided for characterised by the arrangement of discharge orifices, e.g. orientation or size
    • F02M61/1833—Discharge orifices having changing cross sections, e.g. being divergent
    • 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
    • F02M61/1853—Orifice plates
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N2610/00—Adding substances to exhaust gases
    • F01N2610/02—Adding substances to exhaust gases the substance being ammonia or urea
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N2610/00—Adding substances to exhaust gases
    • F01N2610/14—Arrangements for the supply of substances, e.g. conduits
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N2610/00—Adding substances to exhaust gases
    • F01N2610/14—Arrangements for the supply of substances, e.g. conduits
    • F01N2610/1453—Sprayers or atomisers; Arrangement thereof in the exhaust apparatus
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M25/00—Engine-pertinent apparatus for adding non-fuel substances or small quantities of secondary fuel to combustion-air, main fuel or fuel-air mixture
    • F02M25/022—Adding fuel and water emulsion, water or steam
    • F02M25/025—Adding water
    • F02M25/028—Adding water into the charge intakes

Definitions

  • the present invention relates to an atomizer disk for atomizing a fluid with at least one fluid guide disk and at least one spray hole disk arranged on the fluid guide disk, which has at least one spray hole offset from the center of the atomizer disk, and a method for producing such an atomizer disk.
  • Multi-part atomizer disks of the type mentioned are known. Modern internal combustion engines require optimal atomization of fluids such as fuels in order to trigger the required reaction effects and thus increase their efficiency. Fluid is also atomized during pretreatment of the charge air, for example water, which cools and moistens the charge air. Before exiting from the at least one atomizer bore of an atomizer disk, the fluid is often set in rotation by swirl geometries for optimal atomization or collided head-on by means of channels that meet one another.
  • Such channels are usually embossed in atomizer disks made in one or more parts.
  • the desired cross-section is distorted by anisotropic punching of the material and conically deformed contours.
  • punching indentations are often associated with undesirable material changes and bulging, which impair the desired atomization of the fluid emerging from a spray hole bore.
  • Atomizer is, for example, from the German Offenlegungsschrift DE 10 2015 225 338 A1 known.
  • the object of the invention is to provide an improved atomizer disk and an improved method for producing an atomizer disk.
  • an atomizer disk for atomizing a fluid with at least one fluid guide disk and at least one spray hole disk arranged on the fluid guide disk, which has at least one spray hole offset from the center of the atomizer disk.
  • a channel geometry is cut out in the fluid guide disk, which forms the side surfaces of a guide channel for the fluid.
  • the bottom surface of the guide channel is formed by the spray hole disk.
  • the proposed atomizer disk is provided for atomizing one of these fluids, which is supplied in particular by means of an injection or metering valve.
  • the fluid can be a fluid used for exhaust gas purification, such as urea, or water used to cool and/or moisten the charge air.
  • the proposed atomizer disk is designed in at least two parts and has a separately manufactured fluid guide disk. The two-part design makes it possible to precisely cut out the intended channel geometry in the fluid guide disk.
  • the channel geometry can be implemented using any suitable manufacturing and, in particular, cutting method, such as, for example, using a punching method, or a laser or water jet cutting method, which enables the production of sufficiently precise cut edges.
  • the cut edges of the cut-out channel geometry form the side surfaces of a guiding channel for the fluid.
  • the bottom surface of the guide channel is formed by the spray hole disc arranged on the fluid guide disc.
  • the spray hole disk has at least one spray hole, to which the fluid is guided through the guide channel and through which it then exits in particular in atomized form into the environment of the atomizer disk.
  • a spray hole can, of course, have any other suitable contour in addition to a circular one.
  • different channel systems with different arrangements of spray hole bores can be combined and analyzed easily and uncomplicatedly for the prototype construction.
  • the fluid-guiding disk and the spray hole disk have the same thicknesses or are designed with different thicknesses.
  • the fluid guide disk and the spray hole disk can each have a thickness in the range of a lower single-digit micrometer value ( ⁇ m).
  • the processing direction can be varied during manufacture, which can contribute to better efficiency.
  • the fluid guide disk and the spray hole disk can also be made of the same or different materials.
  • the guide channel is designed to guide the fluid with a substantially laminar flow to a spray hole.
  • the dynamic pressure in the fluid in the area of the spray hole increases.
  • This design supports good atomization of the fluid as it flows through the spray hole by supplying the fluid in a suitable manner.
  • the fluid can be accelerated as it flows through the spray hole by means of an increased dynamic pressure at the end of the guide channel.
  • a laminar swirl flow with corresponding acceleration of the fluid can also be produced by suitable guidance of a laminar fluid.
  • the guide channel has a depression in the area of at least one spray hole bore, which depression is formed in the spray hole disk.
  • Such an indentation is commonly used to create a desired flow of fluid. Depending on the formation of the recess, this can, for example, to form a Serve swirl flow in the fluid.
  • the depression formed in the spray disk can be embossed or produced in it by means of a machining process or cut out of it.
  • the spray hole disk is formed in at least two parts in the passage direction of the at least one spray hole, with the inner spray hole disk, which faces the fluid-guiding disk, having at least one depression.
  • An at least two-part construction of the spray hole disk enables a more flexible design of the depression, in particular with regard to its geometry, arrangement and manufacture.
  • the elements of the spray disk can be made of the same or different materials.
  • the spray hole disk has a plurality of spray holes, with the channel geometry being designed to guide fluid to one spray hole each by means of a respective guide channel.
  • the flow of fluid to each spray hole can be provided individually.
  • the atomizer disk if there are several spray holes, these are arranged in a circle around the center point of the channel geometry. Such an arrangement enables the fluid to be guided individually and, in particular, equally to each of the spray holes.
  • several spray holes can be distributed evenly on a circle arranged around the center point of the channel geometry, or in a predetermined arrangement, for example depending on the geometry and/or the flow conditions in the space into which the fluid is introduced, in particular in atomized form.
  • the number and the respective diameter and/or the opening geometry of the spray holes can also be selected, in particular depending on the intended volume flow and the atomization properties of the fluid.
  • the at least one spray hole is oriented at an oblique angle or at right angles to the bottom surface of the guide channel.
  • the orientation of the at least one spray hole to the bottom surface of the guide channel can be provided in particular depending on the geometry and/or the flow conditions in the space in which the fluid is introduced, in particular in atomized form, and/or depending on the interaction with the flow formation in the feed channel and/or depending on the spray hole geometry resulting from the atomization properties of the spray hole geometry associated in particular.
  • the at least one spray hole can be cylindrical or conical, tapering or widening, or also have a cross section that changes along the direction of passage of the fluid.
  • the fluid guide disk and the spray hole disk are firmly connected to one another.
  • the atomizer disk can be handled as a whole in the same way as a one-piece atomizer disk.
  • At least one connecting element is provided which is arranged on the circumference of the atomizer disk and is used to connect the atomizer disk to a fluid valve.
  • the one or more connecting element(s) is/are designed in such a way that it can be used to produce a particularly positive connection with a fluid valve.
  • the atomizer disk produced using the proposed method has at least one or more advantages and properties of the atomizer disk described above. Consequently, the advantages and properties described above apply analogously to an atomizer disk that is designed accordingly and manufactured using the proposed manufacturing method, and vice versa, the advantages and properties described below, which result from the manufacturing method, also apply to the atomizer disk produced with it.
  • cutting out the channel geometry advantageously prevents anisotropic stamping indentations, in particular on the walls of the guide channel in the fluid guide disk.
  • a guide channel for the fluid to be atomized that corresponds exactly to the geometric design can be produced.
  • the flow through the at least one flow channel can be calculated more precisely as a result of the increased accuracy associated with this.
  • a further advantage of the proposed production method is that no undesirable turbulence occurs along punching indentations and the defined flow path of the fluid can thus be maintained.
  • the desired flow of fluid can be achieved through the precisely manufacturable channel geometry.
  • the proposed manufacturing method for the atomizer disk provides for an atomizer disk designed at least in two parts. In this way, the intended channel geometry in the fluid-guiding disk can be cut out precisely, as a result of which cutting edges running exactly can be produced. As a result, influences on the fluid flow in the guide channels caused by the manufacture of the atomizer disk can be largely avoided.
  • a first step a the fluid guide disk is cut out with a channel geometry arranged therein and a peripheral geometry.
  • Any suitable cutting method can be used for this purpose, such as a punching method, a laser cutting method or a water jet cutting method.
  • the spray hole disk is cut out with at least one spray hole arranged therein and a peripheral geometry.
  • Any suitable cutting method can also be used for this purpose, such as a punching method, a laser cutting method or a water jet cutting method, in which case the spray holes in particular can also be produced using a micro-punching method, for example.
  • the fluid guide disk is arranged on the spray hole disk in such a way that the spray hole disk forms the bottom surface of the at least one guide channel for the fluid; and in step d) the fluid guide disk is joined to the spray hole disk to form the atomizer disk.
  • the fluid-guiding disk and the spray hole disk can be firmly connected to one another, in particular by producing a positive and/or non-positive and/or material connection between the disks.
  • One embodiment of the method for producing an atomizer disk in which the spray hole disk is designed in two parts in the direction of passage of the at least one spray hole, has step b1) as a further step, in which the inner spray hole disk has a peripheral geometry and at least one recess at the position of the at least one spray hole is cut out.
  • the cutting out of the recess in an inner injection perforated disk provided for this purpose also makes it possible to produce a very precise contour of the recess. Due to the fact that the recess has a greater extent than the spray hole arranged in the outer spray hole disk, the recess forms a depression in the guide channel after the atomizer disk has been joined.
  • a change in flow associated with this occurs as a function of the geometry of the depression, in particular interacting with the geometry of the guide channel formed in the fluid guide disk.
  • an at least partially rounded indentation can cause the formation of a swirl flow in the fluid in order in particular to achieve a desired atomization of the fluid after it emerges from the atomizer disk.
  • a depression is embossed in the spray hole disc in at least one area surrounding the spray hole.
  • Such an embossed depression of the guide channel can also be used, in particular, to influence the fluid flow before it passes through an injection hole, in order in particular to achieve a desired atomization of the fluid.
  • At least one joining element is formed in particular in steps a) and/or b) on the periphery of the fluid-guiding disk and/or on the periphery of the perforated spray disk.
  • At least one joining element is formed on the circumference of the fluid guide disk, which is provided for joining the fluid guide disk to the spray hole disk.
  • at least one joining element can also be formed on the circumference of the perforated spray disc, which is provided for joining the perforated spray disc to the fluid-guiding disc.
  • Such joining elements are designed in particular to produce a joining connection, for example by engaging with the peripheral contour of the other pane, as can be provided in particular with clamps or the like.
  • one or more such joining elements can engage with one or more joining elements arranged on the respective other disk element of the atomizer disk.
  • a particularly positive and/or non-positive connection can be formed between the spray hole disk and the fluid guide disk.
  • a joining element arranged on the spray disk is designed as a tab with a recess and a joining element arranged on the fluid-guiding disk is designed as a tab which can be arranged in the recess of the tab on the spray disk.
  • the fluid-guiding disk and the spray hole disk are positively connected to one another after the fluid-guiding disk has been arranged on the spray hole disk in step c).
  • the tab arranged on the fluid guide disk is arranged in a form-fitting manner in the recess of the tab on the spray hole disk.
  • step d) the fluid-guiding disk is arranged on the spray hole disk and the at least one joining element on the fluid-guiding disk and/or the at least one joining element arranged on the spray hole disk is/are deformed, in particular caulked, thereby creating a connection between the fluid guide disc and the Splash disk is produced.
  • the deformation of the at least one joining element firmly connects the fluid guide disk and the spray hole disk to one another.
  • a positive and/or non-positive connection between the elements of the atomizer disk is produced in this way.
  • the joining element can be designed in such a way that it forms a connecting element for connecting the atomizer disk to a fluid valve.
  • FIG. 1 shows a three-dimensional view of an exemplary atomizer disc 10 according to the invention in a view of Fluid guide disk 11.
  • the atomizer disk 10 has a spray hole disk 12, which in 1 is arranged below the fluid guide disk 11 and has four spray holes 15 offset relative to the center Z of the atomizer disk 12 .
  • a channel geometry 21 is cut out in the fluid guide disk 11 , which forms the side faces 22 of a guide channel 25 for the fluid, and the bottom face 24 of the guide channel 25 is formed by the spray hole disk 12 .
  • Each guide channel 25 of the exemplary atomizer disk 10 is designed to guide the fluid with a substantially laminar flow to an injection hole 15 and is also designed in such a way that the dynamic pressure in the fluid in the area of the injection hole 15 increases.
  • the fluid guide disk 11 has a peripheral geometry 17 and the spray hole disk 12 has a peripheral geometry 18, which in the exemplary embodiment are also produced by a cutting process.
  • FIG 2 shows a three-dimensional view of the exemplary atomizer disk 10 according to the invention in a view of the spray orifice disk 12.
  • the four injection holes 15 of the atomizer disk 10 are arranged in a circle around the center Z of the atomizer disk 10 and thus also around the center point of the channel geometry 21 in the exemplary embodiment.
  • the atomizer disk 10 also has connecting elements 30 arranged on its circumference, which are provided for connecting the atomizer disk 10 to a fluid valve (not shown).
  • Figure 3a shows a sectional view of a detail of a further exemplary atomizer disk 10 according to the invention, the spray hole disk 12 of which is designed in two parts in the passage direction D of the at least one spray hole 15 .
  • the inner spray hole disk 12a which faces the fluid guide disk 11, has a recess 27 which opens the guide channel 25 in the area of the spray hole 15 in the passage direction D expanded.
  • the spray hole 15 is at the in Figure 3a shown embodiment at an oblique angle to the bottom surface 24 of the guide channel 25 aligned.
  • Figure 3b shows a sectional view of a detail of a further exemplary atomizer disk 10 according to the invention, the spray hole disk 12 of which is designed in one piece in the direction of passage of the at least one spray hole 15 .
  • the one-piece spray hole disk 12 has a depression 27 in the passage direction D of a spray hole 15 , which widens the guide channel 25 in the area of the spray hole 15 .
  • the spray hole 15 at the in Figure 3b shown embodiment at an oblique angle to the bottom surface 24 of the guide channel 25 aligned.
  • FIG. 4 shows a schematic representation of a flowchart of the method according to the invention for producing an atomizer disk 10 for atomizing a fluid with at least one fluid guide disk 11, in which a channel geometry 21 is formed and at least one spray hole disk 12 arranged on the fluid guide disk 11 and having at least one spray hole 15.
  • a fluid guide disk 11 with a channel geometry 21 arranged therein and a peripheral geometry 17 is cut out
  • a depression 27 can be embossed in the spray hole disk 12 in at least one area surrounding a spray hole 15 .
  • the fluid guide disk 11 is arranged on the spray disk 12 in such a way that the spray disk 12 forms the bottom surface 24 of the at least one guide channel 25 for the fluid.
  • the fluid guide disk 11 is joined to the spray hole disk 12 to form the atomizer disk 10 .
  • the method has an additional step b1), in which an inner spray hole disk 12a with a peripheral geometry 18 and is cut out with at least one recess 27 at the position of the at least one spray hole 15.
  • the recess 27 has a greater extension than the spray hole 15 arranged in the outer spray hole disk 12b.
  • figure 5 14 is another three-dimensional view of the exemplary atomizer disk 10 of the present invention 1 after arranging the fluid guide disc 11 on the spray hole disc 12.
  • Four joining elements 31, 32 are formed both on the circumference 17 of the fluid guide disc 11 and on the circumference 18 of the spray hole disc 12, which are angled upwards for joining the fluid guide disc 11 and the spray hole disc 12 are.
  • the joining elements 32 arranged on the spray disk 12 are designed as a lug with a recess 33 (cf. 6 ) formed and arranged on the fluid guide disk 11 joining elements 31 as a tab, which in figure 5 is arranged in the recess 33 of the joining element 32 on the spray hole disk 12 .
  • FIG 13 is a detailed three-dimensional view of the atomizer disc of the present invention 1 shown with joined joining elements 31, 32.
  • the joining elements arranged on the fluid guide disk 11 and on the spray hole disk 12 have been compared to the illustration in figure 5 deformed or caulked together, whereby a connection between the fluid guide disk 11 and the spray hole disk 12 is made.
  • the joining elements 31 and 32 together form connecting elements 30, which are provided for connecting the atomizer disc 10 to a fluid valve (not shown).

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Water Supply & Treatment (AREA)
  • Nozzles (AREA)
EP21203995.2A 2021-10-21 2021-10-21 Disque atomiseur et procédé de fabrication d'un disque atomiseur Pending EP4170154A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP21203995.2A EP4170154A1 (fr) 2021-10-21 2021-10-21 Disque atomiseur et procédé de fabrication d'un disque atomiseur
PCT/EP2022/055440 WO2023066530A1 (fr) 2021-10-21 2022-03-03 Disque d'atomisation et procédé de production de disque d'atomisation

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP21203995.2A EP4170154A1 (fr) 2021-10-21 2021-10-21 Disque atomiseur et procédé de fabrication d'un disque atomiseur

Publications (1)

Publication Number Publication Date
EP4170154A1 true EP4170154A1 (fr) 2023-04-26

Family

ID=78371852

Family Applications (1)

Application Number Title Priority Date Filing Date
EP21203995.2A Pending EP4170154A1 (fr) 2021-10-21 2021-10-21 Disque atomiseur et procédé de fabrication d'un disque atomiseur

Country Status (2)

Country Link
EP (1) EP4170154A1 (fr)
WO (1) WO2023066530A1 (fr)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5899390A (en) * 1995-03-29 1999-05-04 Robert Bosch Gmbh Orifice plate, in particular for injection valves
EP1186774A2 (fr) * 2000-09-06 2002-03-13 Visteon Global Technologies, Inc. Buse d'injection de carburant
US20090200402A1 (en) * 2004-10-09 2009-08-13 Markus Gesk Fuel injector
EP3109554A1 (fr) * 2015-06-22 2016-12-28 Doosan Heavy Industries & Construction Co. Ltd. Unité de buse d'alimentation en combustible ayant une structure d'étanchéité
DE102015225338A1 (de) 2015-12-15 2017-07-06 Robert Bosch Gmbh Spritzlochscheibe und Ventil
US20180320649A1 (en) * 2013-11-11 2018-11-08 Enplas Corporation Attachment structure of fuel injection device nozzle plate

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5899390A (en) * 1995-03-29 1999-05-04 Robert Bosch Gmbh Orifice plate, in particular for injection valves
EP1186774A2 (fr) * 2000-09-06 2002-03-13 Visteon Global Technologies, Inc. Buse d'injection de carburant
US20090200402A1 (en) * 2004-10-09 2009-08-13 Markus Gesk Fuel injector
US20180320649A1 (en) * 2013-11-11 2018-11-08 Enplas Corporation Attachment structure of fuel injection device nozzle plate
EP3109554A1 (fr) * 2015-06-22 2016-12-28 Doosan Heavy Industries & Construction Co. Ltd. Unité de buse d'alimentation en combustible ayant une structure d'étanchéité
DE102015225338A1 (de) 2015-12-15 2017-07-06 Robert Bosch Gmbh Spritzlochscheibe und Ventil

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WO2023066530A1 (fr) 2023-04-27

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