EP3103999B1 - Ventilanordnung für ein einspritzventil und einspritzventil für einen verbrennungsmotor - Google Patents

Ventilanordnung für ein einspritzventil und einspritzventil für einen verbrennungsmotor Download PDF

Info

Publication number
EP3103999B1
EP3103999B1 EP15171767.5A EP15171767A EP3103999B1 EP 3103999 B1 EP3103999 B1 EP 3103999B1 EP 15171767 A EP15171767 A EP 15171767A EP 3103999 B1 EP3103999 B1 EP 3103999B1
Authority
EP
European Patent Office
Prior art keywords
valve
valve assembly
flow passages
throttling element
fluid
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
EP15171767.5A
Other languages
English (en)
French (fr)
Other versions
EP3103999A1 (de
Inventor
Luca Gestri
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.)
Vitesco Technologies GmbH
Original Assignee
Vitesco Technologies 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 Vitesco Technologies GmbH filed Critical Vitesco Technologies GmbH
Priority to EP15171767.5A priority Critical patent/EP3103999B1/de
Publication of EP3103999A1 publication Critical patent/EP3103999A1/de
Application granted granted Critical
Publication of EP3103999B1 publication Critical patent/EP3103999B1/de
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
    • 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
    • F02M61/08—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 the valves opening in direction of fuel flow
    • 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
    • F02M61/12—Other injectors with elongated valve bodies, i.e. of needle-valve type characterised by the provision of guiding or centring means for valve bodies
    • 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
    • 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
    • F02M61/1826—Discharge orifices having different sizes

Definitions

  • the invention relates to a valve assembly for an injection valve and to an injection valve for a combustion engine.
  • Injection valves are in widespread use, in particular for combustion engines where they may arranged in order to dose a fluid into an intake manifold of the combustion engine or directly into a combustion chamber of a cylinder of the combustion engine.
  • an injection valve provides a fluid spray during an operation.
  • the shape of the fluid spray is influenced by a flow field of fluid upstream of a sealing area in the injection valve.
  • a distribution of the fluid spray further depends on the geometry of the injector nozzle that is formed, for example, by a valve needle and a cartridge of the injection valve in the case of an outward opening injection valve.
  • outward opening injection valves may provide a hollow cone fluid spray structure during an operation.
  • Injection valves are manufactured in various forms in order to satisfy the various needs for the various combustion engines. Therefore, for example, their positioning, their diameter and all the various elements of the injection valve being responsible for the way the fluid is dosed into a combustion chamber may vary in a wide range. Some combustion engines require side mounted injection valves and multi stream configurations that better fit the geometrical constraint of the combustion chamber. Therefore, it is beneficial to enable an asymmetrical fluid spray out of the injection valve for reasons of an enhanced combustion process.
  • US 6,155,499 A describes an injection valve, in particular for direct injection of fuel into a combustion chamber of an internal combustion engine, with a valve body having a valve opening surrounded by a valve seat to form a spray opening, and with a valve needle which is pressed into its closed position, has a closing head and extends through the valve opening so that the closing head which works together with the valve seat is in contact with the valve seat on the spray side when the valve is closed.
  • a plurality of fuel channels distributed around the periphery are arranged in the flow path upstream from the spray opening so that streams or strands of fuel coming out of the fuel channels are essentially maintained until downstream from the spray opening, and the individual cross sections of the fuel channels together define a cross section of the flow path through the valve which determines the flow rate.
  • the fuel injection unit disclosed by DE 101 08 541 A1 generates a fuel spray jet, which has a central jet section with low concentration, and an outer jet section.
  • the outer section is formed to have an area with high concentration and wider spray angle, and a peripheral area with average concentration and small spray angle.
  • the spray jet has a flat cohesive shape.
  • the spray jet area with high concentration is directed onto an inner wall opposite to another inner wall, in which the fuel injection valve is located.
  • the complete spray jet is directed symmetrically onto a central dividing wall between the valves.
  • Document EP 1 531 259 A1 discloses an injection valve including a valve needle in a jet body, which is operated by an actuator. It is acted on by a valve closing spring so that a valve closing body in working connection with the needle is held in a sealing position against a valve seat surface there is a bellows seal at the inflow end of the needle, and a swirling device at the outflow end.
  • Document DE 10 2004 053 784 A1 discloses a valve having a nozzle body, in which an edge of a downstream end of the body is shaped by using laser beam to form wearing zones, which are distributed symmetrically around a valve sealing seat.
  • the zones distort a vaporized fuel mixture to form a three dimensional, asymmetric fuel spray when fuel is injected into a combustion chamber such that the spray does not moisten an ignitor electrode of a spark plug.
  • One object of the invention is to specify a valve assembly for an injection valve which enables a reliable and secure functioning of an injection valve to realize in a simple manner an asymmetrical fluid spray during operation.
  • a valve assembly for an injection valve is specified.
  • an injection valve for a combustion engine is specified which comprises the valve assembly.
  • the valve assembly comprises a valve body.
  • the valve body includes a central longitudinal axis and has a cavity.
  • the cavity may expediently extend through the valve body in axial direction.
  • the cavity comprises a lower cavity portion and, adjacent to the lower cavity portion, a fluid outlet portion with a seal seat.
  • the lower cavity portion has a circular cylindrical basic shape and the fluid outlet portion expands conically from the lower cavity portion in downstream direction.
  • the lower cavity portion and the fluid outlet portion merge at a common interface.
  • the valve assembly further comprises a valve needle, which is arranged axially moveable in the cavity and which is configured to prevent a fluid flow through the fluid outlet portion in a closing position in coaction with the seal seat and to release the fluid flow in further positions.
  • the injection valve is an outward opening injection valve, i.e. the valve needle is displaceable in axial direction from the lower cavity portion towards the seal seat for releasing the fluid flow, i.e. for unsealing the valve.
  • the valve assembly has two or more flow passages which are arranged radially asymmetrical with respect to the longitudinal axis.
  • the flow passages are unevenly distributed around the longitudinal axis and at least two circumferentially subsequent flow passages have different cross-sectional areas.
  • the flow passages are arranged axially between the lower cavity portion and the seal seat of the fluid outlet portion with respect to the longitudinal axis and penetrate the valve body from the lower cavity portion towards the fluid outlet portion upstream of the seal seat.
  • the valve body has a radially inward protruding guide portion for axially guiding the valve needle.
  • the guide portion may represent a throttling element for fluid flowing through the cavity towards the seal seat during operation of the valve assembly.
  • An upstream surface of the guide portion may represent a bottom surface of an upper cavity portion of the cavity, delimiting the upper cavity portion in downstream direction where it in particular merges with the lower cavity portion.
  • the lower cavity portion may be shaped by the guide portion, in particular by an inner lateral surface of the guide portion.
  • the fluid outlet portion is in one development shaped by a downstream surface of the guide portion which is in particular a conical surface.
  • the flow passages extend through the guide portion in axial direction.
  • the valve assembly comprises a separate throttling element which is arranged in the lower cavity portion of the cavity - in particular axially spaced apart from the seal seat - and the flow passages penetrate the throttling element.
  • the throttling element is one part of the valve needle.
  • the throttling element and the valve needle may be manufactured from one blank, for example in this case.
  • the throttling element can be a separate piece which is fixedly connected to the valve needle, for example by a welded connection and/or by a friction fit connection and/or by a form fit connection. In each case, the throttling element does function as a guide element for axially guiding the valve needle relative to the valve body.
  • the asymmetrical fluid spray is realized by the asymmetrical arrangement of the flow passages above the seal seat of the fluid outlet portion. "Above the seal seat” or “upstream of the seal seat” describes a position in axial direction of the cavity from the seal seat towards the lower cavity portion.
  • the asymmetrical arrangement of the flow passages enables an asymmetrical fluid spray and hence locally influences the fluid mass and velocity and thus the distribution of the fluid can be controlled. This further effects a penetration of the fluid spray out of the valve assembly or the corresponding injection valve into a combustion chamber.
  • the described valve assembly influences the fluid flow of a streaming fluid and hence a mass distribution of the fluid at the fluid outlet portion. Because of the asymmetrical arrangement of the two or more flow passages the fluid can be locally accelerated and modulated.
  • the fluid distribution is further influenced by a nozzle cross-section which provides a final angle to the fluid spray as well as its own thickness.
  • valve assembly enables side mounting of injection valves, for example, without having a high risk for wetting the cylinder surfaces of the combustion chamber with the fuel spray dispensed from the injection valve.
  • valve assembly enables an asymmetrical distribution of the thin fluid spray of gasoline mass which helps mixture spray formation reducing the momentum and therefore the penetration as well as the film thickness.
  • outward opening injection valves are robust against flow drift phenomena produced by coking for example.
  • the described valve assembly enables multi-stream configurations using outward opening injection valves to better fit the geometrical constraint of the combustion chamber geometry amongst others. It further makes a contribution to prevent a spray collapse in case of small spray angles.
  • valve assembly When a separate throttling element comprises the flow passages, the other elements of the valve assembly do not have to be modified, for example concerning their geometry or design for changing the shape of the fluid spray. This allows for a particular cost-efficient valve design, in particular by using the same valve body for valve assemblies having different spray distributions.
  • the flow passages can be drilled into the separate throttling element using a laser beam like femtosecond laser drilling or drilling by electrical discharge machining. Other manufacturing processes are also possible.
  • valve assembly makes it possible to precisely modulate or inhibit the fluid flow above the seal seat. Hence, it enables to adjust a tangential distribution of the fluid spray out of the fluid outlet portion consequently.
  • the geometry of the flow passages that feed the area above the seal seat can easily been customized for different central and side applications, for example by drilling as mentioned above. Therefore, by forming the flow passages into the throttling element a desirable flow throttling of the fluid can be reached and hence a consequent reduction of fluid penetration and fluid distribution to meet the requirements for a respective application.
  • the described asymmetrical arrangement of the flow passages can also be used to minimize flow sensitivity to lift tolerances of a valve needle of a solenoid outward opening injection valve, for example.
  • valve assemblies and corresponding injection valves are beneficial to provide an increased flexibility in fluid spray customization with respect to central and side mounted applications. Another benefit is an improved robustness towards fluid spray architecture collapse for compact fluid sprays under flash boiling conditions.
  • the described configurations of the flow passages further provide an elimination of fluid flow drift due to coking and reduced wetting potential by thin fluid spray applications. And it makes a contribution to eliminate issues due to emptying of a sac volume of the valve assembly or the injection valve during closure.
  • the throttling element comprises a ring shape and an opening to enable an arrangement of a valve needle with respect to the longitudinal axis.
  • the ring shape comprises the opening.
  • the opening extends through the throttling element in axial direction for receiving the valve needle.
  • the valve needle extends through the opening of the ring-shaped throttling element in axial direction.
  • the throttling element is operable to guide the valve needle axially with respect to the valve body.
  • This embodiment describes one simple geometry of the throttling element which realizes a symmetrical arrangement of the valve assembly or a corresponding injection valve.
  • the throttling element surrounds the valve needle of the injection valve which is axially movable with respect to the longitudinal axis.
  • the throttling element may be fixedly connected to the valve needle and hence being axially movable as well or it may be fixedly connected to the valve body - or in one piece with the valve body - and hence retains in its axial position relatively to the valve body.
  • the asymmetrical arrangement of the two or more flow passages through the throttling element enables an asymmetrical fluid spray during operation of the valve assembly and therefore advantageous fluid spray conditions for a side-mounted outward opening injection valves, for example.
  • the flow passages are designed as grooves in a lateral surface on the throttling element. This may allow for a particularly good lubrication when surfaces of the valve needle or the valve body and the throttling element are in sliding contact for axially guiding the valve needle.
  • the flow passages are spaced apart from the opening of the throttling element in radial outward direction. In this way, a particularly effective modification of the spray distribution may be achievable.
  • the flow passages are arranged in a circle with respect to the longitudinal axis.
  • the geometrical centers of gravity of cross-sections of the flow passages in a plane - in particular in each plane - perpendicular to the longitudinal axis are positioned on a single circle which extends around the longitudinal axis, in particular in said plane and which preferably has its center on the longitudinal axis.
  • the circle may consist of a first and a second semicircle. There may be four flow passages arranged on the first semicircle which penetrate the valve body or the throttling element. The second semicircle may only comprise one flow passage penetrating the valve body or the throttling element. Further embodiments may comprise other numbers of flow passages regarding the respective semicircles.
  • the flow passages have a circular cross-sectional shape.
  • Such a configuration of the flow passages describes a simple way to realize flow passages penetrating the valve body or the throttling element especially by drilling. This enables, in a simple manner, an arrangement of the two or more flow passages to the valve body or to the throttling element and hence to reach the desired flow throttling of the fluid and the given asymmetric fluid spray out of the valve assembly.
  • each flow passage comprises a diameter and at least one diameter differs from the others. In other words, at least two of the flow passages have different diameters.
  • the "diameter" is in the present context the outer diameter which defines the cross-sectional contour of the respective flow channel. In this way, an asymmetrical fluid spray is achievable in particularly simple fashion by drilling.
  • the three flow passages penetrating the first half may have a diameter which is twice as large as that of the three flow passages on the second half.
  • the flow passages are tilted with respect to the longitudinal axis.
  • a tilt of the flow passages also influences the fluid flow and the generation of an asymmetrical fluid spray out of the valve assembly.
  • one or more flow passages comprise a hole axis which includes a given - in particular acute - angle with respect to the longitudinal axis. It is further possible that the flow passages include different angles with the longitudinal axis.
  • Figure 1a shows a cross section of a valve assembly 1 for an injection valve 30 according to a first, unclaimed design in a longitudinal section view with respect to a longitudinal axis L.
  • the valve assembly 1 comprises a valve body 3 including the longitudinal axis L and having and a cavity 5.
  • the cavity 5 comprises an upper cavity portion 6, a lower cavity portion 7 downstream of the upper cavity portion 6 and, adjacent to and downstream of the lower cavity portion 7, a fluid outlet portion 9.
  • fluid may flow through the cavity 5 in downstream longitudinal direction from the upper cavity portion 6 through the lower cavity portion 7 to the fluid outlet portion 9 to be dispensed from the valve assembly 1 at the fluid outlet portion 9.
  • the valve assembly 1 further comprises a valve needle 31.
  • the valve needle 31 and the seal seat 11 are configured and arranged to act together to prevent a fluid flow out of the fluid outlet portion 9 in a closed position of the valve needle 31.
  • a sealing element of the valve needle 31 is in sealing mechanical contact with the seal seat 11.
  • the sealing element has a conical surface which is operable to establish the sealing mechanical contact with the valve seat 11.
  • the sealing element merges with a shaft of the valve needle 31.
  • the shaft may have the general shape of a cylindrical rod.
  • the valve needle 31 is axially displaceable in downstream axial direction along the longitudinal axis L to establish a gap between the seal seat 11 and the sealing element for enabling fuel flow out of the cavity 5 through the fluid outlet portion 9.
  • the valve assembly 1 is in particular a valve assembly 1 of an outward opening injection valve 30.
  • the valve assembly 1 further comprises a throttling element 15.
  • the throttling element 15 is a separate piece which is arranged in the lower cavity portion 7 of the cavity 5 upstream of the seal seat 11.
  • the throttling element 15 is ring-shaped, having a penetrating opening which extends longitudinally through the throttling element 15.
  • the throttling element 15 contacts a wall of the valve body 3. More specifically, it is in press-fit and form-fit connection with the circular cylindrical side surface of the lower cavity portion 7 of the cavity 5 of the valve body 3 so that it has a fixed position relative to the valve body 3.
  • An upstream surface of the throttling element 15 represents a bottom surface of the upper cavity portion 6.
  • the fluid outlet portion 9 is positioned downstream of the throttling element 15.
  • the fluid outlet portion 9 has a conical circumferential surface which comprises the seal seat 11, for example adjacent to a downstream edge of the conical circumferential surface.
  • the valve needle 31 extends through the opening of the throttling element 15 so that it is in sliding mechanical contact with the throttling element 15.
  • the throttling element 15 represents a guide element 14 for axially guiding the valve needle 31 relative to the valve body 3.
  • the throttling element 15 comprises two or more flow passages 13 which penetrate the throttling element 15 and which are arranged radially asymmetrical with respect to the longitudinal axis L.
  • the flow passages 13 of the throttling element 15 end upstream of the seal seat 11 and preferably also upstream of the sealing element of the valve needle.
  • the flow passages 13 have circular cross-sectional shapes but with different diameters and are asymmetrically positioned on a circle around the longitudinal axis L.
  • Figure 1b shows a cross section of the valve assembly 1 according to the first unclaimed design in a cross-sectional view on the plane 1b-1b (see Fig. 1a ).
  • the throttling element 15 comprises six flow passages 13 which have a circular cross-sectional shape and which are substantially arranged in a circle.
  • a reference line A-A' which imaginarily subdivides the throttling element 15 into a first half (the left half in Fig. 1b ) and a second half (the right half in Fig. 1b )
  • Two further flow passages 13 are positioned symmetrically with respect to the reference line AA'.
  • the three flow passages 13 in the left half have a larger diameter which is larger than the diameter of the flow channel 13 in the right half and also than the diameters of the two flow passages 13 which are positioned symmetrically with respect to the reference line AA'.
  • the flow passages 13 are asymmetrically arranged around the valve needle 31 or around the longitudinal axis L.
  • the all flow passages 13 have a central axis which is parallel to the longitudinal axis L.
  • one or more flow passages 13 are tilted with respect to the longitudinal axis L to further influence throttling of the fluid flow and the generation of an asymmetrical fluid spray.
  • valve assembly 1 With the valve assembly 1 according to the present design, an asymmetrical fluid spray is simply and reliably achievable during operation.
  • the asymmetrical fluid spray is realized by the asymmetrical arrangement of the flow passages 13 above the seal seat 11 of the fluid outlet portion 9.
  • the described valve assembly 1 influences the fluid flow of a streaming fluid and hence a mass distribution of the fluid at the fluid outlet portion 9. Because of the asymmetrical arrangement of the two or more flow passages 13 the fluid can be locally accelerated and modulated.
  • the asymmetrical arrangement of the flow passages 13 enables an asymmetrical fluid spray and hence locally influences the fluid mass and velocity, thus the distribution of the fluid can be controlled. This may influence a penetration of the fluid spray out of the valve assembly 1 or the injection valve 30 into a combustion chamber, for example.
  • valve assembly 1 enables side mounting of the outward opening injection valve 30, for example.
  • Outward opening injection valves may be beneficial for side mounting applications because of their robustness against flow drift phenomena produced by coking, for example.
  • the described valve assembly 1 and injection vale 30 enables multi-stream configurations using outward opening injection valves to better fit a geometrical constraint of a combustion chamber geometry amongst others. Furthermore, it makes a contribution to less sensitiveness to carbon deposits over time that lead to tip sooting, for example, and to undesirable change of fluid spray properties.
  • Figure 2a shows a longitudinal section view of a valve assembly 1 according to a second, unclaimed design.
  • Figure 2b shows a cross-sectional view on the plane 2b-2b (see Fig. 2a ) of the valve assembly 1 according to the second unclaimed design.
  • the valve assembly 1 according to the second design corresponds in general to that of the first design.
  • throttling element 15 which also represents the guide element 14 is formed by an integral portion of the valve body 3.
  • a radially inward protruding portion of the circumferential sidewall of the valve body 3 represents a guide portion 14 for axially guiding the valve needle 31 in the present design.
  • the guide portion 14 also represents a throttling element 15 for restricting and shaping fluid flow through the cavity 5 towards the seal seat 11 during operation of the valve assembly 1.
  • An upstream surface of the guide portion 14 represents a bottom surface of the upper cavity portion 6 of the cavity 5 and delimits the upper cavity portion 6 in downstream direction. At the bottom surface, the upper cavity portion 6 merges with the lower cavity portion 7.
  • the lower cavity portion 7 is shaped by an inner lateral surface of the guide portion 14 in the present design.
  • the fluid outlet portion 9 is shaped by a downstream, conical surface of the guide portion 14. The conical surface tapers in upstream direction, i.e. in longitudinal direction towards the lower cavity portion 7.
  • the flow passages 13 extend through the guide portion 14 in axial direction so that they penetrate the valve body 3 from the lower cavity portion 7 to the fluid outlet portion 9. They may or may not reach the seal seat 11 and the nozzle tip when the valve needle 31 is in the closed position.
  • the flow passages 13 are drilled into the radially inward protruding portion of the sidewall of the valve body 3 which represents the guide element 14 and the throttling element 15. They enable fluid to pass from the lower cavity portion 7 to the fluid outlet portion 9 along the valve needle 31. Drilling may be done by the use of a laser beam or by electrical discharge machining, for example.
  • flow passages 13 Analogously to the first design, there are six flow passages 13 asymmetrically arranged in a circle around the valve needle 31 and the longitudinal axis L. There are three flow passages 13 on the left half which comprise circular shapes with larger diameter then the one flow passage 13 on the right half with respect to the marked reference line AA'. Further embodiments may comprise other numbers of flow passages 13 which may comprise other shapes than circular ones. The arrangement of the two or more flow passages 13 can also vary from the illustrated one in a circle.
  • Such a configuration of the assembly 1 or the injection valve 30 describes another possibility to realize an asymmetrical fluid spray during operation of the valve assembly 1 or the injection valve 30.
  • Figure 3a shows a longitudinal section view of a valve assembly 1 for an injection valve 30 according to an exemplary embodiment of the invention. For simplicity, only the portion on the left side of the longitudinal axis L is shown in Fig. 3a.
  • Fig. 3b shows a cross-sectional view of the valve assembly 1 according to the embodiment on the plane 3b-3b.
  • valve assembly 1 of the present embodiment corresponds in general to those of the first and second designs. Contrary thereto, the throttling element 15 is not positionally fix relative to the valve body 3.
  • the throttling element 15 is in one piece with the valve needle 31.
  • the throttling element 15 may be connected to the valve needle 31 by welding, for example.
  • the throttling element 15 and the valve needle 31 are manufactured from one blank, for example.
  • the throttling element 15 is positioned upstream of the seal seat 11. It is also positioned spaced apart from and upstream of the sealing element of the valve needle 31. It protrudes radially outward from a shaft of the valve needle 31.
  • the outline of the shaft of the valve needle 31 is roughly indicated by the dashed circle in Fig. 3b .
  • the shaft protrudes axially from the throttling element 15 on both axial sides.
  • the shaft is in particular in the shape of a cylindrical rod.
  • the throttling element 15 and the guide element 14 are different from one another, in contrast to the first and second designs.
  • the guide element 14 is fixed to or in one piece with the valve needle 31 in the present embodiment. It is positioned upstream and spaced apart from the throttling element 15.
  • the valve needle 31 comprises a second guide element (not shown) in an axial end region of the valve needle remote from the sealing element, the guide element 14 and the throttling element 15.
  • the throttling element 15 has a radially outward tapering disc shape in the present embodiment and comprises flow passages 13 which are tilted with respect to the longitudinal axis L (cf. the inclined central axis of the flow channel 13 shown in Fig. 3a ).
  • each fluid passage 13 has an elliptical cross-sectional shape wherein the three flow passages 13 in the first (left) half as well as the two flow passages on the reference line AA' have a larger cross-section than the one in the second (right) half.
  • Figure 4a shows a longitudinal section view corresponding to that of Fig. 3a of a valve assembly 1 and an injection valve 30 according to a further exemplary embodiment of the invention.
  • Figure 4b shows a cross-sectional view of the valve assembly 1 of the further embodiment on the plane 4b-4b which is indicated in Fig. 4a .
  • valve assembly 1 of the further embodiment corresponds in general to that of the previous embodiment.
  • throttling element 15 which is an integral part of the valve needle 31 also represents the guide element 14 which is operable to guide the downstream end portion of the valve needle 31 in axial direction.
  • the flow passages 13 are not spaced apart from the circumferential edges of the throttling element 15. Rather, they are in the shape of grooves in an outer lateral surface of the throttling element 15 which is in sliding mechanical contact with the valve body 3 for axially guiding the valve needle 31. Also, the central axes of the flow channels 13 are not inclined relative to the longitudinal axis L but parallel thereto.
  • Figure 4b shows that there are six flow passages 13 in the present embodiment which are asymmetrically arranged in a circle corresponding to the outer circumferential edge of the throttling element 15.
  • the number of flow passages 13 can vary for different embodiments as well as their geometry. Moreover, combinations of the described embodiments are also possible to realize a desirable throttling of the fluid flow and to enable an asymmetrical fluid spray.
  • cross-sectional shape wherein the three flow passages 13 in the first (left) half as well as the two flow passages on the reference line AA' have a larger cross-section than the one in the second (right) half.
  • Figure 4a shows a longitudinal section view corresponding to that of Fig. 3a of a valve assembly 1 and an injection valve 30 according to a fourth exemplary embodiment.
  • Figure 4b shows a cross-sectional view of the valve assembly 1 of the fourth embodiment on the plane 4b-4b which is indicated in Fig. 4a .
  • valve assembly 1 of the fourth embodiment corresponds in general to that of the third embodiment.
  • throttling element 15 which is an integral part of the valve needle 31 also represents the guide element 14 which is operable to guide the downstream end portion of the valve needle 31 in axial direction.
  • the flow passages 13 are not spaced apart from the circumferential edges of the throttling element 15. Rather, they are in the shape of grooves in an outer lateral surface of the throttling element 15 which is in sliding mechanical contact with the valve body 3 for axially guiding the valve needle 31. Also, the central axes of the flow channels 13 are not inclined relative to the longitudinal axis L but parallel thereto.
  • Figure 4b shows that there are six flow passages 13 in the present embodiment which are asymmetrically arranged in a circle corresponding to the outer circumferential edge of the throttling element 15.
  • the invention is not limited to specific embodiments by the description on basis of these exemplary embodiments. Rather, the scope of the invention is defined by the appended claims. Moreover, the invention comprises any combination of claims and any combination of features disclosed by the claims. Within the scope of the invention, the number of flow passages 13 can vary for different embodiments as well as their geometry. Moreover, combinations of the described embodiments are also possible to realize a desirable throttling of the fluid flow and to enable an asymmetrical fluid spray.

Landscapes

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

Claims (9)

  1. Ventilanordnung (1) für ein nach außen öffnendes Einspritzventil (30), wobei die Ventilanordnung (1) Folgendes umfasst:
    - einen Ventilkörper (3), der eine Mittellängsachse (L) aufweist und einen Hohlraum (5) umfasst, wobei der Hohlraum (5) einen unteren Hohlraumabschnitt (7) und neben dem unteren Hohlraumabschnitt (7) einen Fluidauslassabschnitt (9) mit einem Dichtungssitz (11) umfasst, und
    - eine Ventilnadel (31), die axial beweglich in dem Hohlraum (5) angeordnet ist und die dazu konfiguriert ist, einen Fluidstrom durch den Fluidauslassabschnitt (9) in einer geschlossenen Stellung in Zusammenwirkung mit dem Dichtungssitz (11) zu verhindern, und in einer axialen Richtung von dem unteren Hohlraumabschnitt (7) zu dem Dichtungssitz (11) zum Freigeben des Fluidstroms durch den Fluidauslassabschnitt (9) verschiebbar ist,
    wobei die Ventilanordnung (1) zwei oder mehr Strömungsdurchgänge (13) umfasst,
    wobei
    - die Ventilanordnung ein Drosselelement (15) umfasst, das ein Teil der Ventilnadel (31) oder mit der Ventilnadel (31) fest verbunden ist und in dem unteren Hohlraumabschnitt (7) des Hohlraums (5) angeordnet und von dem Dichtungssitz (11) axial beabstandet ist, und
    dadurch gekennzeichnet, dass
    - die Strömungsdurchgänge (13) das Drosselelement (15) durchdringen und ungleichmäßig um die Längsachse (L) herum verteilt sind, und wobei
    mindestens zwei umfänglich nachfolgende Strömungsdurchgänge (13) unterschiedliche Querschnittsflächen aufweisen, und wobei das Drosselelement (15) zum Führen der Ventilnadel (31) in einer axialen Richtung konfiguriert ist.
  2. Ventilanordnung (1) nach Anspruch 1, wobei das Drosselelement (15) radial von einem Schaft der Ventilnadel (31) vorragt.
  3. Ventilanordnung (1) nach Anspruch 2, wobei die Strömungsdurchgänge (13) von dem Schaft der Ventilnadel (31) in einer radial nach außen verlaufenden Richtung beabstandet sind.
  4. Ventilanordnung (1) nach Anspruch 1 oder 2, wobei die Strömungsdurchgänge (13) als Nuten in einer lateralen Fläche des Drosselelements (15) konstruiert sind.
  5. Ventilanordnung (1) nach einem der vorhergehenden Ansprüche, wobei
    die Strömungsdurchgänge (13) auf einem Kreis, der die Längsachse (L) umgibt, angeordnet sind.
  6. Ventilanordnung (1) nach einem der vorhergehenden Ansprüche, wobei die Strömungsdurchgänge (13) eine kreisförmige Querschnittsform aufweisen.
  7. Ventilanordnung (1) nach dem vorhergehenden Anspruch, wobei mindestens zwei der Strömungsdurchgänge (13) unterschiedliche Durchmesser aufweisen.
  8. Ventilanordnung (1) nach einem der vorhergehenden Ansprüche, wobei die Strömungsdurchgänge (13) bezüglich der Längsachse (L) schräg sind.
  9. Einspritzventil (30) für einen Verbrennungsmotor, das eine Ventilanordnung (1) nach einem der vorhergehenden Ansprüche umfasst.
EP15171767.5A 2015-06-12 2015-06-12 Ventilanordnung für ein einspritzventil und einspritzventil für einen verbrennungsmotor Active EP3103999B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP15171767.5A EP3103999B1 (de) 2015-06-12 2015-06-12 Ventilanordnung für ein einspritzventil und einspritzventil für einen verbrennungsmotor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP15171767.5A EP3103999B1 (de) 2015-06-12 2015-06-12 Ventilanordnung für ein einspritzventil und einspritzventil für einen verbrennungsmotor

Publications (2)

Publication Number Publication Date
EP3103999A1 EP3103999A1 (de) 2016-12-14
EP3103999B1 true EP3103999B1 (de) 2020-08-05

Family

ID=53396331

Family Applications (1)

Application Number Title Priority Date Filing Date
EP15171767.5A Active EP3103999B1 (de) 2015-06-12 2015-06-12 Ventilanordnung für ein einspritzventil und einspritzventil für einen verbrennungsmotor

Country Status (1)

Country Link
EP (1) EP3103999B1 (de)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP7124351B2 (ja) * 2018-03-08 2022-08-24 株式会社デンソー 燃料噴射弁および燃料噴射システム

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102004053784A1 (de) * 2004-11-08 2006-05-11 Robert Bosch Gmbh Brennstoffeinspritzventil und Verfahren zu dessen Herstellung

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19633260A1 (de) * 1996-08-17 1998-02-19 Bosch Gmbh Robert Einspritzventil, insbesondere zum direkten Einspritzen von Kraftstoff in einen Brennraum eines Verbrennungsmotors
US6588399B2 (en) * 2000-02-22 2003-07-08 Hitachi, Ltd. Fuel injection method of internal combustion engine and fuel injection apparatus of internal combustion engine
DE10353639A1 (de) * 2003-11-17 2005-06-16 Robert Bosch Gmbh Brennstoffeinspritzventil
US7942349B1 (en) * 2009-03-24 2011-05-17 Meyer Andrew E Fuel injector
EP2698527A1 (de) * 2012-08-16 2014-02-19 Continental Automotive GmbH Ventilanordnung für ein Einspritzventil und Einspritzventil

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102004053784A1 (de) * 2004-11-08 2006-05-11 Robert Bosch Gmbh Brennstoffeinspritzventil und Verfahren zu dessen Herstellung

Also Published As

Publication number Publication date
EP3103999A1 (de) 2016-12-14

Similar Documents

Publication Publication Date Title
US6155499A (en) Injection valve, particularly for direct injection of fuel into the combustion chamber of an internal combustion engine
US10774800B2 (en) Nozzle body and fuel injection valve
US10208711B2 (en) Gas injector including an outwardly opening valve closure element
US9194351B2 (en) Injection valve
US5878961A (en) Injection valve for injecting fuel directly into a combustion chamber of an internal combustion engine
JP2013007387A (ja) 電磁的に操作される燃料噴射弁
EP3103999B1 (de) Ventilanordnung für ein einspritzventil und einspritzventil für einen verbrennungsmotor
US7188790B2 (en) Fuel-injection valve
JP6444599B2 (ja) 燃料を噴射するためのバルブ
JP4157384B2 (ja) 半径方向の切欠きを備えた弁
US9822748B2 (en) Restrictive flow passage in common rail injectors
JP6824300B2 (ja) 貫通口に先細りする流入領域が設けられた流体を調量する弁
KR20150085465A (ko) 연소 기관을 위한 밸브 조립체 및 유체 인젝터
US20210348585A1 (en) Nozzle with microstructured through-holes
JP2019074083A (ja) 液体を調量する弁、特に燃料噴射弁
US6502554B1 (en) Fuel injection valve for internal combustion engines
EP2896811B1 (de) Düsenanordnung und Brennstoffeinspritzventil für einen Verbrennungsmotor
US11253875B2 (en) Multi-dimple orifice disc for a fluid injector, and methods for constructing and utilizing same
US9551311B2 (en) Nozzle body, the valve assembly and fluid injection valve
EP3156640B1 (de) Düsenkörper für flüssigkeitseinspritzventil und flüssigkeitsinjektor
EP1482170B1 (de) Einspritzdüse mit verbesserter Einspritzung und Verfahren zur deren Herstellung
EP3239513B1 (de) Ventilverschlusselement mit elastomerdichtung, ventilanordnung und fluidinjektor
EP1467087A1 (de) Sprühmusterelement und Kraftstoffeinspritzventil mit demselben
KR102071151B1 (ko) 연소 엔진용 인젝터
EP3851663A1 (de) Ventilsitzkörperanordnung für eine flüssigkeitseinspritzdüse eines verbrennungsmotors mit einem ventilsitzkörper und einem ausflussöffnungsteil

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

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

Free format text: STATUS: THE APPLICATION HAS BEEN PUBLISHED

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: 20170614

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: 20171012

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: 20200212

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: VITESCO TECHNOLOGIES GMBH

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

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

REG Reference to a national code

Ref country code: AT

Ref legal event code: REF

Ref document number: 1299044

Country of ref document: AT

Kind code of ref document: T

Effective date: 20200815

REG Reference to a national code

Ref country code: DE

Ref legal event code: R096

Ref document number: 602015056806

Country of ref document: DE

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

REG Reference to a national code

Ref country code: LT

Ref legal event code: MG4D

REG Reference to a national code

Ref country code: NL

Ref legal event code: MP

Effective date: 20200805

REG Reference to a national code

Ref country code: AT

Ref legal event code: MK05

Ref document number: 1299044

Country of ref document: AT

Kind code of ref document: T

Effective date: 20200805

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

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: 20200805

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: 20201105

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: 20200805

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: 20200805

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: 20201207

Ref country code: AT

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: 20200805

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: 20200805

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: 20200805

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: 20201105

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: 20201106

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

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: 20200805

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: 20200805

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: 20200805

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: 20200805

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: 20201205

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: 20200805

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: 20200805

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: 20200805

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: 20200805

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: 20200805

REG Reference to a national code

Ref country code: DE

Ref legal event code: R097

Ref document number: 602015056806

Country of ref document: DE

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

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: 20200805

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

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

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: 20200805

26N No opposition filed

Effective date: 20210507

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

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: 20200805

REG Reference to a national code

Ref country code: DE

Ref legal event code: R081

Ref document number: 602015056806

Country of ref document: DE

Owner name: VITESCO TECHNOLOGIES GMBH, DE

Free format text: FORMER OWNER: VITESCO TECHNOLOGIES GMBH, 30165 HANNOVER, DE

Ref country code: DE

Ref legal event code: R081

Ref document number: 602015056806

Country of ref document: DE

Owner name: DUMAREY FLOWMOTION TECHNOLOGIES S.R.L., IT

Free format text: FORMER OWNER: VITESCO TECHNOLOGIES GMBH, 30165 HANNOVER, DE

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: 20200805

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: 20210612

REG Reference to a national code

Ref country code: BE

Ref legal event code: MM

Effective date: 20210630

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: 20210612

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

Ref country code: LI

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

Effective date: 20210630

Ref country code: IE

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

Effective date: 20210612

Ref country code: GB

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

Effective date: 20210612

Ref country code: CH

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

Effective date: 20210630

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: 20210630

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: 20210630

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

Ref country code: HU

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT; INVALID AB INITIO

Effective date: 20150612

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

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: 20200805

P01 Opt-out of the competence of the unified patent court (upc) registered

Effective date: 20230530

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

Ref country code: DE

Payment date: 20230630

Year of fee payment: 9

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: 20200805

REG Reference to a national code

Ref country code: DE

Ref legal event code: R081

Ref document number: 602015056806

Country of ref document: DE

Owner name: DUMAREY FLOWMOTION TECHNOLOGIES S.R.L., IT

Free format text: FORMER OWNER: VITESCO TECHNOLOGIES GMBH, 93055 REGENSBURG, DE

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

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: 20200805

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

Ref country code: IT

Payment date: 20240620

Year of fee payment: 10