EP3209876B1 - Silencieux de vehicule pour la conduite d'air comprimé d'un moteur à combustion - Google Patents

Silencieux de vehicule pour la conduite d'air comprimé d'un moteur à combustion Download PDF

Info

Publication number
EP3209876B1
EP3209876B1 EP15808070.5A EP15808070A EP3209876B1 EP 3209876 B1 EP3209876 B1 EP 3209876B1 EP 15808070 A EP15808070 A EP 15808070A EP 3209876 B1 EP3209876 B1 EP 3209876B1
Authority
EP
European Patent Office
Prior art keywords
interior
silencing device
vehicle according
resonator element
resonator
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
EP15808070.5A
Other languages
German (de)
English (en)
Other versions
EP3209876A1 (fr
Inventor
Harald Hartmann
Christian Hubmann
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.)
Henn GmbH and Co KG
Original Assignee
Henn GmbH and Co KG
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 Henn GmbH and Co KG filed Critical Henn GmbH and Co KG
Publication of EP3209876A1 publication Critical patent/EP3209876A1/fr
Application granted granted Critical
Publication of EP3209876B1 publication Critical patent/EP3209876B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
    • F02M35/12—Intake silencers ; Sound modulation, transmission or amplification
    • F02M35/1255—Intake silencers ; Sound modulation, transmission or amplification using resonance
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B33/00—Engines characterised by provision of pumps for charging or scavenging
    • F02B33/44—Passages conducting the charge from the pump to the engine inlet, e.g. reservoirs
    • 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
    • F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
    • F02M35/12—Intake silencers ; Sound modulation, transmission or amplification
    • F02M35/1255—Intake silencers ; Sound modulation, transmission or amplification using resonance
    • F02M35/1261—Helmholtz resonators
    • 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
    • F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
    • F02M35/12—Intake silencers ; Sound modulation, transmission or amplification
    • F02M35/1255—Intake silencers ; Sound modulation, transmission or amplification using resonance
    • F02M35/1266—Intake silencers ; Sound modulation, transmission or amplification using resonance comprising multiple chambers or compartments
    • 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
    • F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
    • F02M35/12—Intake silencers ; Sound modulation, transmission or amplification
    • F02M35/1283—Manufacturing or assembly; Connectors; Fixations

Definitions

  • the invention relates to a vehicle silencer for a charge air line of a turbocharged internal combustion engine.
  • the EP 2 757 235 A1 discloses a vehicle silencer for a charge air line of a turbocharged internal combustion engine, comprising at least a first and a second housing part made of a metallic material, which are coupled together in a connection region and form an outer shell of the vehicle silencer. Furthermore, a Resonatorinnenelement is formed, which is positively received in at least one of the housing parts and at least one Kammentrennwand and then at least a first inner tube section, wherein at least a first and a second resonator are formed by the housing parts and the Resonatorinnenelement.
  • the EP 1 400 662 A1 discloses a vehicle silencer with a resonator chamber wall made of a plastic and a metal perforated plate as the inner tube section.
  • the EP 1 400 685 A2 discloses an air filter made of a plastic material.
  • the present invention has for its object to provide an improved vehicle silencer, which despite having the simplest possible structure has a high functionality or effectiveness. This object of the invention is achieved by the vehicle muffler described in this document.
  • a vehicle silencer is provided for a charge air line of a turbocharged internal combustion engine, comprising at least first and second housing parts of a metallic material, which are coupled together in a joining or connecting area and form an outer shell of the vehicle silencer.
  • a resonator inner element provided, which is formed of a plastic material.
  • the resonator inner element is received in a form-fitting manner in at least one of the housing parts and has at least one chamber dividing wall and subsequently at least one inner pipe section. At least two resonator chambers are formed by the housing parts and the resonator inner element.
  • the advantage here is that the Resonatorinnenelement is easy to manufacture from a plastic material.
  • the shape of the Resonatorinneniatas can be chosen relatively freely.
  • Another advantage of the use of plastic is an achievable weight reduction compared to a Resonatorinnenelement metal. This is especially for the rising Requirements for as weight-optimized vehicles advantageous.
  • due to the minimization or reduction of occasionally perceived as disturbing flow or whistling noise in the charge air of internal combustion engines, which are charged with compressor arrangements, especially with turbochargers or compressor arrangements an increased comfort level for motor vehicles can be achieved without serious weight increases occur.
  • a plastic resonator inner element can be produced relatively inexpensively not only in large series, but also in small batches, since a tool for producing the resonator inner element made of plastic is easy to produce and thus the tool costs remain low.
  • the Resonatorinnenelement of polyamide, in particular of a fiber-reinforced polyamide is formed.
  • the resonator inner element can be formed by PA66 and / or PA6, which is reinforced with 20% to 40% fibers, preferably about 30% fibers, in particular glass fibers.
  • PA66 and / or PA6 which is reinforced with 20% to 40% fibers, preferably about 30% fibers, in particular glass fibers.
  • the advantage here is that such a plastic has a relatively good heat resistance and also allows a simple and cost-effective production or processing.
  • such a plastic has little distortion or good dimensional stability even at relatively high temperatures.
  • sufficient mechanical strength can be achieved in order to be able to insert or press the resonator inner element into the outer casing or into at least one housing part of the vehicle silencer in a dimensionally accurate and long-term stable position.
  • Such a plastic also allows a relatively tailor-made production, so that defective productions can be kept behind.
  • the good dimensional stability and toughness also ensures the longest possible retention of the planned function or, thus, any possible vibrations or disturbing rattling noises within the specified vehicle silencer can be reliably prevented.
  • an injection molded part is inexpensive to manufacture, especially in mass production.
  • an injection molded part can be designed as freely as possible with respect to its shape, whereby this can be well adapted to the requirements of the vehicle silencer.
  • the resonator inner element has an axially extending centering projection on the outer circumference of its chamber dividing wall, which is coupled to one of the housing parts or bears against its inner surface.
  • the centering lug is rotationally symmetrical about the central axis.
  • the resonator inner element can be accommodated in a housing part, which is likewise rotationally symmetrical.
  • the resonator inner element does not have to be aligned in any particular angular position with respect to the central axis.
  • the assembly of the resonator can be accelerated or simplified.
  • the two housing parts at least in their connection region rotationally symmetrical about the resonator, in particular around its central axis, are formed.
  • the advantage here is that such trained housing parts, for example, by a deep-drawing process, can be produced efficiently.
  • the mass production of the housing parts is simple and inexpensive possible.
  • the two housing parts may have a joining or separating plane that is normal to the center axis, with the resonator inner element being pushed into one of the housing parts in the axial direction.
  • the advantage here is that the housing parts can thereby pot-shaped or cup-shaped and the Resonatorinnenelement can be well integrated or used in the housing parts in the course of assembly.
  • the series production of the housing parts by means of a metal or sheet-metal deep-drawing process is simple and inexpensive.
  • the resonator inner element has a second inner pipe section, wherein the first and the second inner pipe section respectively connect to the chamber partition wall, and extend in opposite axial directions.
  • the resonator inner element has webs which connect in the radial direction to the first inner pipe section and / or webs, which adjoin the second inner pipe section and are each connected at a first web end face with the chamber parting wall.
  • the advantage here is that such webs can serve as stiffeners to stabilize the resonator inner element formed of plastic, in particular the two inner tube sections.
  • the webs on a second web end face have a support portion which cooperates with at least one of the housing parts.
  • all support sections or at least one of the support sections for punctiform or as small as possible, axially directed support and relative positioning of the Resonatorinneniatas be formed within the outer shell. It is advantageous that a relatively good thermal decoupling between the metallic housing parts of the outer shell and the Resonatorinnenelement made of plastic can be achieved. In addition, unwanted axial displacements of the resonator inner element, for example due to the flow pressures occurring or due to vibrations, can thereby be avoided in a simple and reliable manner.
  • the centering projection is tongue-like or in the form of a sealing lip and dimensioned such that it is urged under elastic prestress against an inner circumferential surface of the first or further housing part.
  • This can be achieved in a reliable manner a backlash-free and thus vibration-free fitting of the Resonatorinneniatas in the vehicle muffler.
  • this may result in a possibly desired, relatively fluid separation in the contact or transition region between the peripheral portion of the resonator inner element and the inner lateral surfaces of the first or further housing part are created.
  • the resonator inner element is formed by a polymer selected from the group of polyolefins or polyethylene terephthalate, or else mixtures of these polymers.
  • a plastic in the sense of this description is an organic, polymeric solid which is produced synthetically or semi-synthetically from monomeric organic molecules or biopolymers.
  • a polyolefin in the sense of this description is a collective term for polymers prepared from alkenes such as ethylene, propylene, 1-butene or isobutene by polymerization or polyolefin copolymers such as polyethylene and polypropylene.
  • FIGS. 1 to 3 show a first embodiment of a muffler, in particular a vehicle muffler. 1
  • Fig. 1 shows an isometric view of the vehicle muffler 1.
  • the vehicle muffler 1 shown in this view has a first housing part 2 and a second housing part 3, which are interconnected in a joining or connecting portion 4.
  • the vehicle muffler 1 is formed in this embodiment as a rotationally symmetrical hollow body and therefore has a central axis 5.
  • the embodiment described below in more detail is not limited to a rotationally symmetrical hollow body, but it is also conceivable that the vehicle muffler 1 has approximately a rectangular or a polygonal cross-section.
  • the hollow body it is possible for the hollow body to have a prismatic basic shape, that is, to have partial flat areas on its lateral surface.
  • Fig. 2 shows a section through a vehicle muffler 1 along its central axis 5.
  • the vehicle muffler 1 shown here comprises a first resonator 6 and a second resonator 7.
  • the first resonator chamber 6 With respect to the flow direction 8 for the gaseous medium, in particular for the charging or combustion air, is the first resonator chamber 6 is arranged in front of the second resonator chamber 7.
  • the two housing parts 2, 3 form the hollow body mentioned above, in particular an outer shell 9 of the vehicle muffler 1.
  • the first resonator chamber 6 is bounded on the outside by a first outer jacket 10 and a first end wall 11.
  • the first end wall 11 can be designed either as a flat wall, or as in Fig. 2 shown as a wall with gradations.
  • the first outer jacket 10 and the first end wall 11 are in this case included in the first housing part 2.
  • the first resonator chamber 6 is bounded in its outer region by an inner circumferential surface 12 of the first outer jacket 10 and by an end inner surface 13 of the first end wall 11.
  • the first end wall 11 has an inflow opening 14, through which the medium, in particular the compressed intake air, can flow into the first resonator chamber 6.
  • the first resonator chamber 6 is bounded on the inside partially by a first inner tube section 15, respectively by an outer circumferential surface 16 of the first inner tubular section 15 and by a chamber partition wall 17 and a first wall surface 18 of the chamber partition wall 17.
  • the inflow opening 14 has a shoulder 19 which tapers in an axial step in a stepped manner for receiving a coupling element.
  • the stepped tapered projection 19 can be formed so as to project into or protrude into the first resonator chamber 6 so that it delimits the first resonator chamber 6.
  • an outer circumferential surface 20 of the step-shaped tapered projection 19 delimits the first resonator chamber 6.
  • the second resonator chamber 7 is limited in its outer region by the second housing part 3.
  • the second housing part 3 may in this case have a second outer casing 21 with a second inner lateral surface 22.
  • the second housing part 3 comprises a second end wall 23, wherein the second resonator chamber 7 is bounded by a second end inner surface 24 of the second end wall 23.
  • the second housing part 3 also has at its second end wall 23 an outflow opening 25 through which the gaseous medium can be guided.
  • the second end wall 23 extends radially from the second outer shell 21 in the direction of the center. The second end wall 23 is therefore arranged at a right angle to the second outer shell 21.
  • the first housing part 2 is thus arranged on the inflow side 26 and the second housing part 3 on the outflow side 27 of the resonator or the vehicle muffler 1. Furthermore, it can be provided that a connection piece 28 is coupled to the outflow opening 25, which is intended to connect a pressure hose.
  • the connection piece 28 can, as in Fig. 2 can be executed as an independent component, which is connected for example by a welded connection to the second housing part 3. In an alternative variant can also be provided that the connecting piece 28 is formed integrally with the second housing part 3.
  • the second resonator chamber 7 is bounded by a second, inner tube section 29, in particular by an outer lateral surface 30 of the second inner tube section 29. Furthermore, the second resonator chamber 7 is delimited by the chamber dividing wall 17, in particular by a second wall surface 32 of the chamber dividing wall 17, to the first resonator chamber 6.
  • the vehicle muffler 1 which has two resonator chambers 6, 7, a first housing part 2, a second housing part 3 and a resonator inner element 31.
  • the first housing part 2 and the second housing part 3 are formed in an advantageous embodiment as deep-drawn parts.
  • the two housing parts 2, 3 are formed or deep-drawn from a metallic material, for example from a steel sheet.
  • a stainless steel sheet is used here.
  • the resonator inner element 31 is preferably formed from a plastic material and designed in particular as an injection molded part.
  • the individual components of the vehicle muffler 1 are designed so that the resonator inner element 31 is received in a form-fitting manner in the first housing part 2 and / or in the second housing part 3.
  • the vehicle muffler 1 can in the connection region 4 have a cohesive connection by the first housing part 2 and the second housing part 3 are connected to each other in this joining or connecting region 4 by a laser or plasma welding.
  • the first housing part 2 comprises in its connection region 4 to the second housing part 3, a first receiving portion 33.
  • the first receiving portion 33 has at its free end a radially outwardly projecting flange 34, by means of which the first housing part 2 is connected to the second housing part 3.
  • connection between the first housing part 2 and the second housing part 3 is preferably realized by a cohesive connection, for example a welded connection, in particular a laser, plasma or micro plasma welded connection.
  • the inflow side 26 connects to the first receiving portion 33 of the first outer shell 10.
  • the first outer jacket 10 has a cross-sectional dimension 35 on its inner circumferential surface 12.
  • the first outer jacket 10 has an axial extension 36.
  • the first end wall 11 is formed, which the inflow opening 14 and the step-shaped tapered in axial section approach 19 has for receiving a coupling element.
  • the first end wall 11 in this case adjoins the first outer casing 10 in the direction of the center.
  • the second housing part 3 has a second receiving portion 38, to which the second outer shell 21 connects.
  • the area around the receiving portion 38 of the second housing part 3 is formed analogously to the first receiving portion 33 of the first housing part 2.
  • the second receiving portion 38 includes a flange 39, which is preferably connected in the installed state by a welded connection with the flange 34 of the first receiving portion 33.
  • the second outer casing 21 has a cross-sectional dimension 40 on its inner lateral surface 22.
  • the cross-sectional dimension 40 of the second outer sheath 21 and the cross-sectional dimension 35 of the first outer sheath 10 are preferably the same size.
  • the second outer casing 21 also has an axial extension 41.
  • the resonator inner element 31 has on the outer circumference 37 of its chamber dividing wall 17 a centering lug 42, which is designed for receiving or arranging in the first receiving section 33 of the first housing part 2 or for receiving or arranging in the second receiving section 38 of the second housing part 3.
  • a centering lug 42 which is designed for receiving or arranging in the first receiving section 33 of the first housing part 2 or for receiving or arranging in the second receiving section 38 of the second housing part 3.
  • an outer surface 43 of the centering projection 42 contacts the first inner circumferential surface 12 of the first housing part 2 and / or the second inner lateral surface 22 of the second housing part 3 or bears against it.
  • the centering projection 42 is in this case in an advantageous embodiment variant circumferentially, in particular rotationally symmetrical.
  • the centering lug 42 has only individual segments or tabs, which are formed as a centering lug 42.
  • the centering projection 42 may be designed to taper, so that the resonator inner element 31 can be easily inserted into the first 2 and the second housing part 3.
  • the resonator inner element 31 has a slightly larger outer diameter at its centering projection 42 than the cross-sectional dimension 35 of the first outer jacket 10 or the cross-sectional dimension 40 of the second outer jacket 21.
  • the centering lug 42 may be designed like a tongue or in the manner of a sealing lip and in the installed state under elastic bias, in particular with a defined biasing force in the radial direction to the central axis 5 against the first or second inner circumferential surface 12, 22 press.
  • the chamber partition wall 17 is formed.
  • the chamber dividing wall 17 extends in the direction of the center of the vehicle muffler 1.
  • the first inner pipe section 15 is formed on one side.
  • the first inner tube section 15 is hereby pulled starting from the chamber partition wall 17 in the direction of inflow opening 14.
  • the second inner pipe section 29 is formed, which extends from the chamber partition wall 17 in the direction of discharge opening 25 and is pulled.
  • a first chamber gap 45 is formed, through which the first resonator 6 is connected to a free flow opening 46 such that a gas exchange between them is possible.
  • a second chamber gap 47 is formed by the second inner pipe section 29 and the second housing part 3, through which the second resonator chamber 7 is connected to the free flow opening 46.
  • the first inner tube section 15 and the second inner tube section 29 preferably have an identical common inner diameter 48.
  • An axial extension 49 of the first inner tube section 15 and an axial extension 50 of the second inner tube section 29 depend on the axial extension 36 of the first outer jacket 10 and on the axial extension 41 of the second outer jacket 21.
  • the resonator behavior can be influenced.
  • the resonator inner element 31 can have at least one first web 51, which is arranged on the outside of the first inner tubular section 15 and adjoins it.
  • first web 51 is arranged on the outside of the first inner tubular section 15 and adjoins it.
  • three of these first webs 51 are arranged distributed uniformly over the circumference of the first inner pipe section 15, that is offset by 120 ° to each other.
  • a symmetrical stabilization of the first inner pipe section 15 can be achieved.
  • the resonator inner element 31 can have at least one second web 52, which is arranged on the outside of the second inner pipe section 29 and adjoins it.
  • a symmetrical stabilization of the second inner pipe section 29 can be achieved.
  • one of the first webs 51 is arranged offset in each case to one of the second webs 52 by 60 °.
  • Fig. 3 shows an exploded view of the vehicle muffler 1. It is clearly apparent how the vehicle muffler 1 is manufactured or assembled.
  • Fig. 4 shows a perspective view of the Resonatorinneniatas 31, which in the vehicle muffler 1 according to the FIGS. 1 to 3 is installed.
  • a first web end face 53 of the first web 51 connects to the chamber partition wall 17 and a second web end face 54 of the first web 51 has a support portion 55 which cooperates with the first housing part 2.
  • a step 56 is formed, which engages in the step-shaped tapered projection 19.
  • the Resonatorinnenelement 31 can be positioned in its axial position with respect to the two housing parts 2, 3.
  • the resonator inner element 31 is positioned or fixed relative to an angular position of its central axis 5 to the angular position of the central axis 5 of the first 2 and second housing part 3.
  • the longitudinal axis of the Resonatorinneniatas 31 and the central axis 5 of the outer shell 9 coaxially or congruently positioned.
  • a first web end face 57 of the second web 52 connects to the chamber partition wall 17 and a second web end face 58 of the second web 52 also has a support portion 59.
  • This support portion 59 may cooperate with the second housing part 3.
  • the first web 51 protrudes beyond the first inner pipe section 15 and / or that the second web 52 protrudes beyond the second inner pipe section 29.
  • the support section 55 and / or support section 59 form punctual, in particular punctiform or small-area contact zones with respect to the first or second housing part 2, 3 in order to maximize the heat transfer or the direct transfer of thermal energy between said components to keep low.
  • the two housing parts 2, 3 form a parting plane 62 at which they touch each other.
  • a recess 60 is provided in the centering projection 42 of the Resonatorinneniatas 31, which cooperates with a longitudinal groove 61 of the first 2 or the second housing part 3.
  • the first housing part 2 and the second housing part 3 are deep-drawn, so that they receive their characteristic pot-shaped or cup-shaped form.
  • the resonator inner element 31 is produced by an injection molding process from a plastic granulate.
  • either the first housing part 2 or the second housing part 3 can be used as a base, the other parts are placed and constructed thereon.
  • the exemplary Assembling on the assumption that the second housing part 3 is the base member.
  • the second housing part 3 is inserted into a mounting device to be held there. Furthermore, it is also conceivable that the second housing part 3 by a manipulator, such as a robot, is held.
  • the resonator inner element 31 is inserted into the second receiving section 38 of the second housing part 3.
  • the centering projection 42 of the resonator inner element 31 is inserted into the second receiving section 38. Due to the excess of the centering projection 42, it can be achieved that the resonator inner element 31 has a good, in particular a backlash-free, seat in the second housing part 3.
  • the axial position of the resonator inner element 31 relative to the second housing part 3 is determined here by the second web 52.
  • the first housing part 2 is positioned relative to the second housing part 3.
  • the two housing parts 2, 3 are pushed together or pressed against each other until the flange 34 of the first receiving portion 33 contacts the flange 39 of the second receiving portion 38.
  • the first housing part 2 can now be connected to the second housing part 3.
  • the contiguous flanges 34, 39 are welded here.
  • a welding method for an industrial manufacturing process in particular a mass production, this advantageously a laser or a plasma welding process is used.
  • any other welding method is used, which is suitable to connect the two housing parts 2, 3 cohesively with each other.
  • the two flanges 34, 39 can serve to prevent burn-through of the thin sheet, from which the housing parts 2, 3 are made and thus the welded joint of the two housing parts 2, 3 can have a high strength.
  • the individual parts of the vehicle muffler 1 are preferably dimensioned such that in the assembled state, the centering lug 42 is spaced at a certain distance from the parting plane 62, so that when welding the two housing parts 2, 3, the introduced heat does not affect the resonator inner element 31 formed from plastic leads.
  • FIG. 5 is a further and possibly independent embodiment of the vehicle muffler 1 is shown, again for like parts, the same reference numerals or component names as in the preceding FIGS. 1 to 3 be used. In order to avoid unnecessary repetition, the detailed description in the previous ones will be used FIGS. 1 to 3 referred or referred.
  • FIG. 5 shows the further embodiment of the vehicle muffler 1 in a sectional view accordingly Fig. 2 .
  • the connecting piece 28 is arranged at an angle to the second outer shell 21 and opposite the inflow opening 14 in this embodiment, so that the leading gas flow is passed around a curve. Accordingly, the resonator inner element 31 in the region of the second inner tube section 29 is cut at an oblique angle.
  • FIG. 6 is the Resonatorinnenelement 31 of the embodiment of the vehicle muffler 1 after Fig. 5 shown in a perspective view, again with the same parts the same reference numerals or component names as in the previous FIGS. 1 to 5 be used. In order to avoid unnecessary repetition, the detailed description in the previous ones will be used FIGS. 1 to 5 referred or referred.
  • FIG. 7 shows a further embodiment of the Resonatorinnenelement 31 in a perspective view, again for like parts, the same reference numerals or component designations as in the previous FIGS. 1 to 6 be used. In order to avoid unnecessary repetition, the detailed description in the previous ones will be used FIGS. 1 to 6 referred or referred.
  • a further chamber dividing wall 63 is subsequently formed on the second inner pipe section 29. Subsequent to the further chamber partition wall 63, a third internal pipe section 64 is formed. Furthermore - as can be seen in this embodiment - be provided that in one or more of the inner pipe sections 15, 29, 64, an opening 65 is provided for the passage of the medium through the lateral surfaces thereof.
  • Fig. 8 1 shows a vehicle 66 with a turbocharger 67 and a vehicle muffler 1 connected to the pressure side of the turbocharger 67 according to the invention.
  • turbocharger 67 is a compression device for combustion air of the internal combustion engine of the vehicle 66 to understand. Instead of a turbocharger 67, it is also possible to use a compressor arrangement or another device increasing the boost pressure of the combustion air.
  • the vehicle muffler 1 according to the invention reduces or minimizes flow or whistling noises occurring during operation of the internal combustion engine, at least within a certain frequency range. With the specified vehicle muffler 1 thus the achievable comfort level of motor vehicles whose internal combustion engine is provided boost pressure side with the specified vehicle muffler 1 can be increased. The achievable comfort increase has a favorable or optimized cost / benefit ratio.
  • FIGS. 1 to 4 . 5 to 6 and 7 shown embodiments form the subject of independent solutions according to the invention.
  • the relevant objects and solutions according to the invention can be found in the detailed descriptions of these figures.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Exhaust Silencers (AREA)

Claims (10)

  1. Silencieux de véhicule (1) pour une conduite d'air de suralimentation d'un moteur à combustion avec turbocompresseur (67), comprenant au moins une première (2) et une deuxième partie de boîtier (3) en matériau métallique, qui sont couplées entre elles dans une zone de liaison (4) et qui constituent une enveloppe externe (9) du silencieux de véhicule (1), un élément interne de résonance (31) étant prévu, qui est logé par complémentarité de forme dans au moins une des parties du boîtier (2, 3) et qui comprend au moins une cloison de chambre (17) et, raccordée à celle-ci, au moins une première portion tubulaire interne (15), les parties de boîtier (2, 3) et l'élément interne de résonance (31) formant au moins une première (6) et une deuxième chambre de résonance (7), caractérisé en ce que l'élément interne de résonance (31) est constitué d'une matière plastique et en ce que l'élément interne de résonance (31) comprend une deuxième portion tubulaire interne (29), la première (15) et la deuxième portion tubulaire interne (29) se raccordant chacune à la cloison de chambre (17) et s'étendant dans des directions axiales opposées et en ce que l'élément interne de résonance (31) comprenant une première nervure (51), qui se raccorde dans la direction radiale à la première portion tubulaire interne (15) et qui comprend une deuxième nervure (52) qui se raccorde à la deuxième portion tubulaire interne (29) et les nervures (51, 52) sont reliées chacune à la cloison de chambre (17) au niveau d'une première face frontale de nervure (53, 57).
  2. Silencieux de véhicule selon la revendication 1, caractérisé en ce que l'élément de résonance interne (31) est constitué de polyamide, plus particulièrement d'un polyamide renforcé par des fibres.
  3. Silencieux de véhicule selon la revendication 1 ou 2, caractérisé en ce que l'élément de résonance interne (31) est constitué d'une pièce moulée par injection.
  4. Silencieux de véhicule selon l'une des revendications précédentes, caractérisé en ce que l'élément de résonance interne (31) comprend, sur la circonférence externe (37) de sa cloison de chambre (17), au moins un embout de centrage (42) s'étendant dans la direction axiale, qui s'appuie contre au moins une des parties du boîtier (2, 3).
  5. Silencieux de véhicule selon la revendication 4, caractérisé en ce que l'embout de centrage (42) est conçu avec une symétrie de rotation autour de l'axe central (5).
  6. Silencieux de véhicule selon l'une des revendications précédentes, caractérisé en ce que les deux parties du boîtier (2, 3) sont conçues, au moins dans leur zone de liaison (4), avec une symétrie de rotation autour de l'axe central (5).
  7. Silencieux de véhicule selon l'une des revendications précédentes, caractérisé en ce que les deux parties du boîtier (2, 3) comprennent un plan de jonction ou de séparation (62) perpendiculaire à l'axe central (5), et l'élément interne de résonance (31) est inséré axialement dans une des parties du boîtier (2, 3).
  8. Silencieux de véhicule selon l'une des revendications précédentes, caractérisé en ce qu'au moins une des nervures (51, 52) comprend, au niveau d'une deuxième face frontale de nervure (54, 58), une portion d'appui (55, 59) qui interagit avec au moins une des parties du boîtier (2, 3).
  9. Silencieux de véhicule selon la revendication 8, caractérisé en ce que toutes les portions d'appui (55, 59) ou au moins une des portions d'appui (55, 59) est conçue pour un appui ponctuel, ou sur la surface la plus petite possible, orienté axialement, et le positionnement relatif de l'élément interne de résonance (31) à l'intérieur de l'enveloppe externe (9).
  10. Silencieux de véhicule selon la revendication 4, caractérisé en ce que l'embout de centrage (42) est conçu sous la forme d'une languette ou sous la forme d'une lèvre d'étanchéité et dimensionné de façon à ce qu'il soit comprimé, avec une précontrainte élastique, contre une surface d'enveloppe externe (12, 22) de la première ou de la deuxième partie du boîtier (2, 3).
EP15808070.5A 2014-10-21 2015-10-21 Silencieux de vehicule pour la conduite d'air comprimé d'un moteur à combustion Active EP3209876B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT507542014 2014-10-21
PCT/AT2015/050263 WO2016061604A1 (fr) 2014-10-21 2015-10-21 Silencieux d'échappement de véhicule pour une conduite d'air de suralimentation d'un moteur à combustion interne

Publications (2)

Publication Number Publication Date
EP3209876A1 EP3209876A1 (fr) 2017-08-30
EP3209876B1 true EP3209876B1 (fr) 2018-12-26

Family

ID=54848348

Family Applications (1)

Application Number Title Priority Date Filing Date
EP15808070.5A Active EP3209876B1 (fr) 2014-10-21 2015-10-21 Silencieux de vehicule pour la conduite d'air comprimé d'un moteur à combustion

Country Status (3)

Country Link
EP (1) EP3209876B1 (fr)
ES (1) ES2717778T3 (fr)
WO (1) WO2016061604A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102020122027B4 (de) * 2020-08-24 2023-05-04 Mann+Hummel Gmbh Schalldämpfer und Filtersystem

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19943246B4 (de) * 1999-09-10 2006-06-14 Daimlerchrysler Ag Schalldämpfer zur Herabminderung der Luftgeräusche im Ansaugstrang von Brennkraftmaschinen
US6684842B1 (en) * 2002-07-12 2004-02-03 Visteon Global Technologies, Inc. Multi-chamber resonator
DE10243884A1 (de) 2002-09-21 2004-04-01 Mann + Hummel Gmbh Resonatorschalldämpfer
DE10243883A1 (de) * 2002-09-21 2004-04-15 Mann + Hummel Gmbh Resonatorluftfilter
FR2945839B1 (fr) * 2009-05-20 2012-10-26 Mann & Hummel Gmbh Dispositif acoustique pour l'insonorisation de moteurs a combustion interne.
US20140196977A1 (en) * 2013-01-16 2014-07-17 Henn Gmbh & Co Kg. Silencer and method for manufacturing the same

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

Also Published As

Publication number Publication date
ES2717778T3 (es) 2019-06-25
EP3209876A1 (fr) 2017-08-30
WO2016061604A1 (fr) 2016-04-28

Similar Documents

Publication Publication Date Title
EP2180163B1 (fr) Boîtier de turbines et son procédé de fabrication
EP3303816B1 (fr) Silencieux de vehicule
EP3114345B1 (fr) Silencieux
EP2616658B2 (fr) Conduite de fluide présentant un résonateur
WO1999051909A1 (fr) Systeme pour reduire les pulsations et/ou les vibrations dans des systemes hydrauliques de conduites en tuyaux souples
DE102015202851A1 (de) Fluidleitungsanordnung
EP2757235B1 (fr) Silencieux et son procédé de fabrication
DE102010020064B4 (de) Schalldämpferanordnung für eine insbesondere aufgeladene Kraftfahrzeug-Brennkraftmaschine
DE19960427C1 (de) Ladeluftschlauch und Verfahren zur Herstellung eines Ladeluftschlauchs
DE102005048593B4 (de) Kunststoffleitung, insbesondere hydraulische Kupplungsdruck-Übertragungsleitung für ein Kraftfahrzeug
EP3209876B1 (fr) Silencieux de vehicule pour la conduite d'air comprimé d'un moteur à combustion
DE102012204114B4 (de) Schalldämpfer-Einheit
DE102019201504A1 (de) Luftkanal für ein Kraftfahrzeug sowie Verfahren für seine Herstellung
DE10243881A1 (de) Schalldämpfer zur Verringerung von Luftgeräuschen und Verfahren zur Herstellung desselben
DE102013016350B3 (de) Fluidbetätigter Membranantrieb
DE102018107766A1 (de) Abgasanlage und Mischerbaugruppe für eine Abgasanlage
EP2270320A2 (fr) Supports de sondes et leur procédé de fabrication
WO2012035163A1 (fr) Unité de traitement de gaz d'échappement pour une conduite de recyclage de gaz d'échappement
EP3245396B1 (fr) Silenciux pour vehicule
EP1419001B1 (fr) Boitier
EP2607765B1 (fr) Bride hybride
DE102019204072A1 (de) Geräuschdämpfer für einen Ansaugtrakt
DE102008017625B4 (de) Teilstück für eine Abgasanlage eines Verbrennungsmotors und Verfahren zu seiner Herstellung
EP3137752B1 (fr) Silencieux
DE102005044810A1 (de) Gehäuse für eine Abgasreinigungsvorrichtung

Legal Events

Date Code Title Description
STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE INTERNATIONAL PUBLICATION HAS BEEN MADE

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: REQUEST FOR EXAMINATION WAS MADE

17P Request for examination filed

Effective date: 20170519

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

DAV Request for validation of the european patent (deleted)
DAX Request for extension of the european patent (deleted)
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: 20180215

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

Owner name: HENN GMBH & CO KG.

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: 20180718

GRAJ Information related to disapproval of communication of intention to grant by the applicant or resumption of examination proceedings by the epo deleted

Free format text: ORIGINAL CODE: EPIDOSDIGR1

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

Free format text: STATUS: EXAMINATION IS IN PROGRESS

GRAR Information related to intention to grant a patent recorded

Free format text: ORIGINAL CODE: EPIDOSNIGR71

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

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

Free format text: STATUS: GRANT OF PATENT IS INTENDED

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

INTC Intention to grant announced (deleted)
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

INTG Intention to grant announced

Effective date: 20181119

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

Free format text: NOT ENGLISH

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

REG Reference to a national code

Ref country code: AT

Ref legal event code: REF

Ref document number: 1081765

Country of ref document: AT

Kind code of ref document: T

Effective date: 20190115

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

Free format text: LANGUAGE OF EP DOCUMENT: GERMAN

REG Reference to a national code

Ref country code: DE

Ref legal event code: R096

Ref document number: 502015007479

Country of ref document: DE

REG Reference to a national code

Ref country code: SE

Ref legal event code: TRGR

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

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: 20181226

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: 20181226

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: 20190326

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: 20190326

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: 20181226

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: 20181226

REG Reference to a national code

Ref country code: NL

Ref legal event code: MP

Effective date: 20181226

REG Reference to a national code

Ref country code: LT

Ref legal event code: MG4D

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

Ref country code: 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: 20181226

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: 20190327

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: 20181226

REG Reference to a national code

Ref country code: ES

Ref legal event code: FG2A

Ref document number: 2717778

Country of ref document: ES

Kind code of ref document: T3

Effective date: 20190625

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

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: 20181226

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

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: 20190426

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: 20181226

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: 20181226

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: 20181226

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: 20181226

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: 20190426

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: 20181226

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: 20181226

REG Reference to a national code

Ref country code: DE

Ref legal event code: R097

Ref document number: 502015007479

Country of ref document: DE

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

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: 20181226

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

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

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed

Effective date: 20190927

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: 20181226

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

Ref country code: TR

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

Effective date: 20181226

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: 20181226

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

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: 20191031

Ref country code: LU

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

Effective date: 20191021

Ref country code: CH

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

Effective date: 20191031

REG Reference to a national code

Ref country code: BE

Ref legal event code: MM

Effective date: 20191031

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: 20191031

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

Ref country code: IE

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

Effective date: 20191021

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: 20181226

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: 20181226

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: 20151021

REG Reference to a national code

Ref country code: AT

Ref legal event code: MM01

Ref document number: 1081765

Country of ref document: AT

Kind code of ref document: T

Effective date: 20201021

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

Ref country code: AT

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

Effective date: 20201021

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: 20181226

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: GB

Payment date: 20230907

Year of fee payment: 9

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

Ref country code: SE

Payment date: 20230829

Year of fee payment: 9

Ref country code: FR

Payment date: 20230907

Year of fee payment: 9

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

Ref country code: ES

Payment date: 20231108

Year of fee payment: 9

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

Ref country code: IT

Payment date: 20231023

Year of fee payment: 9

Ref country code: DE

Payment date: 20230904

Year of fee payment: 9