EP3030779A1 - Geräuschdämpfer - Google Patents
GeräuschdämpferInfo
- Publication number
- EP3030779A1 EP3030779A1 EP14748213.7A EP14748213A EP3030779A1 EP 3030779 A1 EP3030779 A1 EP 3030779A1 EP 14748213 A EP14748213 A EP 14748213A EP 3030779 A1 EP3030779 A1 EP 3030779A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- pipeline
- silencer according
- perforated
- silencer
- pipe
- 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.)
- Granted
Links
- 230000003584 silencer Effects 0.000 title claims abstract description 45
- 238000010521 absorption reaction Methods 0.000 claims abstract description 33
- 239000000203 mixture Substances 0.000 claims abstract description 21
- 238000004519 manufacturing process Methods 0.000 claims description 10
- 239000006260 foam Substances 0.000 claims description 7
- 239000012530 fluid Substances 0.000 claims description 3
- 230000000295 complement effect Effects 0.000 claims 1
- 239000003570 air Substances 0.000 description 23
- 238000002485 combustion reaction Methods 0.000 description 18
- 239000007789 gas Substances 0.000 description 16
- 239000000463 material Substances 0.000 description 9
- 230000008901 benefit Effects 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- 230000009467 reduction Effects 0.000 description 5
- 238000013016 damping Methods 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- 230000002745 absorbent Effects 0.000 description 3
- 239000002250 absorbent Substances 0.000 description 3
- 239000000446 fuel Substances 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 230000003993 interaction Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000004745 nonwoven fabric Substances 0.000 description 2
- 238000005457 optimization Methods 0.000 description 2
- 239000011148 porous material Substances 0.000 description 2
- 239000004640 Melamine resin Substances 0.000 description 1
- 229920000877 Melamine resin Polymers 0.000 description 1
- 239000006096 absorbing agent Substances 0.000 description 1
- 239000011358 absorbing material Substances 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 239000012080 ambient air Substances 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 210000003850 cellular structure Anatomy 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000000567 combustion gas Substances 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 239000004753 textile Substances 0.000 description 1
- 238000009827 uniform distribution Methods 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
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
- F02M35/1205—Flow throttling or guiding
- F02M35/1216—Flow throttling or guiding by using a plurality of holes, slits, protrusions, perforations, ribs or the like; Surface structures; Turbulence generators
-
- 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
- F02M35/10—Air intakes; Induction systems
-
- 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
- F02M35/10—Air intakes; Induction systems
- F02M35/10091—Air intakes; Induction systems characterised by details of intake ducts: shapes; connections; arrangements
- F02M35/10111—Substantially V-, C- or U-shaped ducts in direction of the flow path
-
- 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
- F02M35/1272—Intake silencers ; Sound modulation, transmission or amplification using absorbing, damping, insulating or reflecting materials, e.g. porous foams, fibres, rubbers, fabrics, coatings or membranes
-
- 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 present invention relates to a silencer, in particular an intake silencer for an internal combustion engine, as well as an intake system for a motor vehicle with such an intake silencer. It further relates to an advantageous manufacturing method for such silencer.
- any heat engine is referred to, which performs mechanical work by internal combustion of fuel.
- chemical energy from a mixture of fuel and ambient air is converted by the ignition into mechanical energy in a known as combustion chamber or combustion chamber working space of a working cylinder.
- flow or turbomachinery known from the prior art internal combustion engines, such as the included from the equipment of conventional motor vehicles gasoline engines or diesel engines operate according to this principle.
- gasoline engines or diesel engines operate according to this principle.
- For the intake of outside air and discharge of combustion gases have generic motor vehicles usually fluidly connected to the engine intake and exhaust systems, the latter being referred to in the vehicle technology as exhausts.
- a known from the prior art exhaust for a gasoline engine includes next to a nozzle, exhaust manifold and tailpipe typically a device for reducing noise emissions, such as occur in particular in the form of muzzle noises of the tailpipe.
- Such devices known in the field of vehicle acoustics as silencers can be connected downstream of this, for example, to a catalyst of the exhaust system which is provided as required. rather in turn causes additional sound attenuation.
- the attachment of generic silencers is carried out by means of appropriate stops on the vehicle floor.
- DE 100 26 355 A1 discloses a sound-damping air duct for an air intake tract of an internal combustion engine, in particular of a motor vehicle, with an inner tube having radial openings and with an insulating jacket which at least partially surrounds the inner tube radially on the outside.
- an outer tube is provided, which completely envelops the inner tube and the insulating jacket radially.
- a broadband damper for the intake air of an internal combustion engine is proposed. This is particularly suitable for damping the suction noise associated with a compressor for the intake air.
- the damper is formed by a line section, which is connected by means of passages with a resonance volume.
- the resonance volume can surround the line section annularly.
- an absorption material for improving the sound absorption is provided.
- a barrier layer is attached, which z. B. may consist of a nonwoven or a film. This prevents blowing of the absorbent material into the intake air where the parts of the absorbent material could damage the engine. In this way, the production of a broadband effective and inexpensive broadband damper should be possible.
- a silencer for an air flow channel in which the sound-conducting channel is provided in regions with openings whose length in the flow direction and whose width are within a predetermined size range, wherein, starting from a predetermined opening area of the slot-like openings, a selected depending on a specific frequency range of the acoustic emission to be damped ratio of the length of the openings is selected to the width thereof, wherein the openings at the rear end in the flow direction inward have directed and projecting into the flow channel leading edges.
- EP 1 170 499 A1 discloses another noise reduction arrangement for air ducts.
- a line for the intake system of an internal combustion engine is formed by means of an extrusion process.
- the surface of the pipe is bored to allow the passage of air. This prevents the formation of standing waves in the system and thus reduces the resulting noise.
- the holes may be pierced during extrusion of the conduit and formed in the form of holes or slots.
- the holes may be arranged in a regular pattern, such as in rows, rings or spirals, or in a random pattern or in a combination of different patterns on the line.
- the holes can also be concentrated in certain areas on the pipe surface to improve the acoustic properties of the pipe.
- EP 1 541 856 A1 proposes to provide specific regions of the sound-conducting air duct in a suction pipe of an internal combustion engine serving as a sound conducting pipe in its curved region with slot-like openings whose length in the flow direction and their width are dimensioned according to a predefined size.
- the ratio of the opening length to the width is selected as a function of a specific frequency range of a sound emission to be absorbed.
- fer- ner At the intake manifold of the combustion engine is fer- ner provided a closable flap, which may be placed over the provided in the curvature region slot-like openings.
- a tube with at least one porous section is also known, which in turn is provided with at least one slot which serves to reduce the noise generated by the fluid flow.
- WO 1997 009 527 A1 discloses an air intake duct between the turbocharger and the internal combustion engine internally provided with shields or walls, the openings of which correspond to and are aligned with at least the inside diameters of the inlet and the outlet for a so-called reflection muffler which can be used in motor vehicles.
- the spaces between the shields form resonance chambers for the air flowing through.
- a disadvantage of these known devices is their partial one-sided optimization with regard to a reduction of the muzzle sound of the intake or the absorption of certain sound frequencies.
- the object of the invention is therefore to provide a noise damper, an intake system and a manufacturing method for noise damper, which are characterized by a reduction of the muzzle sound of the intake system over a maximum bandwidth occurring frequencies.
- a noise damper with the features of claim 1, an intake system with the features of claim 14 and by a manufacturing method having the features of claim 15.
- the basic idea of the invention is to encase a perforated pipeline for the gas mixture to be transported with a suitable absorption layer, which in turn is surrounded by a likewise perforated outer shell.
- the described combination of two noise reduction techniques allows through the perforation of the pipe in the first stage an advantageous reduction of the muzzle sound in low frequency ranges while surrounding the pipe absorption layer in the second stage largely eliminates any remaining high-frequency vibrations of the gas mixture, without leading to a hot air intake.
- the sound absorption or the sound attenuation results from the entirety of the construction, which in the manner of a "sandwich" of perforation.
- Absorption layer and perforation is realized.
- the attenuation is in the low-frequency range, i. amplified at frequencies up to about 1000 Hz or 1500 Hz or predominantly by the respective perforation, while the effect of the absorption layer increases with increasing frequency and attenuates or absorbed primarily in the high-frequency range from 1000 Hz or 1500 Hz.
- the construction can achieve an absorption in the entire audible range or an effective attenuation of the audible sound.
- the respective perforation has a number of perforation holes.
- the perforation holes may have any shape and / or size and / or be arranged distributed arbitrarily.
- Preferred embodiments are those in which the perforation holes are formed round. This results in acoustic advantages. Furthermore, it is preferred if at least two of the perforation holes have the same shape. With that increased the acoustic benefits. In addition, the production of the perforation is simplified.
- At least one such perforation hole has a size which is less than 7 mm. That is, the round shaped perforation hole has a diameter of less than 7 mm. Embodiments in which at least one such perforation hole has a size of less than 2 mm are particularly preferred. In this case, the smaller the perforation hole or the perforation holes, the better the acoustic, in particular sound-absorbing, properties of the noise damper.
- such a silencer can be used as an intake silencer for the intake system of an internal combustion engine, such as an internal combustion engine.
- the silencer In its function as an intake silencer, the silencer can be fluidly connected to a suction line or an air filter of the appropriately equipped intake system.
- the embodiment described as an intake silencer allows the silencer to contribute in a fluidically adapted manner to the internal combustion engine for reducing the - induced by the or the reciprocating piston of the engine - pulsating intake flow of the raw air.
- the absorption layer which can be formed by a porous Schallschluckstoff.
- the use of such a material enables the effective conversion of the sound energy transported by the gas mixture into heat energy, which is produced by the friction of the gas molecules at the pores of the sound-absorbing substance.
- Schallschluckstoff this is particularly recommended a foam.
- the high compressibility of this material makes it possible, as part of the manufacturing process, to reduce the volume of the absorption layer by pressure, which proves to be helpful from a production-practical point of view.
- a foam-based absorption layer is also characterized by a very low density and thermal conductivity and ensures uncomplicated workability with little tooling.
- the foam-made absorption layer is almost free of inherent stress.
- an embodiment of the absorption layer made of nonwoven fabric offers.
- the use of such a batt, in particular in the form of a flexible textile fabric allows a wide variety of inventive absorption layers, which can be tailored to a wide range of application requirements by the variety of nonwoven fabric usable raw materials and manufacturing variants.
- the absorption layer is equipped with such an absorption area that it largely absorbs high-frequency vibrations of the gas mixture in the audible range.
- the absorption layer largely absorbs high-frequency vibrations of the gas mixture in the audible range.
- a silencer according to the invention is able, as it were broad-band dampers, to detect a wide frequency spectrum which includes the sound frequencies audible to the human ear, ie the sound of the sound between 50 Hz and 5 kHz, preferably between 50 Hz and 6500 kHz and above ,
- the silencer can be provided with a correspondingly shaped fluidic connection.
- a suitable shaping such as a hollow cylindrical connector or pair of such connectors with a predetermined axis order, such a silencer in a variety of combinations with known cavity resonators, such as.
- Helmholtz resonator or other resonators e.g. ⁇ / 4 pipes are coupled, which allow an optimization of the device to different individual frequencies.
- An uncomplicated structural realization results in this case from the integral design of the or the connecting elements with the pipeline.
- the resonator is preferably arranged at a distance from the noise damper.
- the perforation of the outer shell remains at least partially, preferably completely, free and is not covered by the resonator.
- the spaced arrangement of the resonator can be achieved by a corresponding configuration of the associated connecting elements. These may for example protrude from the silencer and extend in particular transversely, preferably perpendicularly, to the flow direction of the gas mixture in the pipeline from the silencer.
- the connecting elements are preferably spaced transversely to the flow direction of the gas mixture in the pipeline and / or arranged in order to achieve improved interaction and / or to improve the overall absorption. This also improves the flow of the gas mixture or the flow guidance, because the influence of the connecting elements on each other is reduced. Such a configuration can also help to make the noise damper space-saving.
- connection elements are fluidly connected to the pipe.
- This connection preferably takes place in connection areas of the pipeline. This means that at least one such connection region is preferably associated with the respective connection element.
- At least one of the connecting regions is perforated.
- Such a variant has the particular advantage that in the connection area on the advantageous properties of the perforation must not be waived.
- an improved interaction with the associated connecting element and in particular with the resonator is achieved.
- all connection areas are perforated.
- connection regions is perforated differently than the remaining perforated region of the pipeline.
- This can be achieved by the number and / or the density and / or the size of perforation holes being different in the at least one connection region than in another region.
- the perforation holes are formed larger in the connection area.
- the perforation holes in the connection area are at least twice as large as in another area.
- such a perforation hole may have a diameter of 5 mm in the connection region, while such a perforation hole has a diameter of 2 mm in another region.
- connection region is arranged in a bent section of the pipeline. This means that the connection area is bent outwards.
- the bent configuration of the connection region leads to a corresponding flow of the gas mixture into the connection region.
- connection region is advantageously bent such that a flow into the connection region takes place in a simplified manner. This is realized, for example, in that the connection region is bent towards the associated connection element.
- FIG. 1 shows a cross section of a noise damper according to a first embodiment of the invention
- FIG. 2 shows a view of an intake system with a silencer according to a second embodiment of the invention
- FIG. 3 and FIG. 4 each show a partial view of the noise damper of FIG. 2 from different perspectives;
- Figure 5 is a perspective view of a section through the noise damper.
- FIG. 1 illustrates a noise damper 10 according to a first embodiment of the invention on the basis of a sectional representation.
- the term "silencer” in the present context means any device for reducing noise emissions, which in addition to silencers for reducing exhaust noise in particular intake silencer comprises in motor vehicles Building technology in ventilation ducts or air duct systems are used.
- the core of the noise damper 10 forms a pipe 1 1, whose cross section corresponds approximately to a rounded rectangle.
- the walls of the pipe 1 1 consist of a substantially fluid-tight material, which is particularly suitable for the transport of air.
- Other (not shown) pipe fittings, expansion pieces, fittings, seals, fasteners such as flanges, fittings, fittings, sleeves and fasteners to support like the pipe 1 1 supplement in a known arrangement.
- the pipeline 11 is surrounded on both sides by an absorption layer 12 along a partial section, which is formed by two acoustic panels embedded in opposite wall surfaces of the pipeline 11.
- a circumferentially arranged adsorption layer 12 is conceivable, which are placed outside.
- the absorber used in this case is a porous Schallschluckstoff with through pores, such as a suitable melamine resin foam or other foam.
- Foamed material in the broadest sense of the word is understood to mean any substance that is essentially artificially produced with a cellular structure and low density. Equally included are, in particular, chemically, physically or mechanically foamed substances familiar to the person skilled in the art, such as are used in the field of plastics processing.
- the absorption layer 12 is in turn surrounded by an outer shell 13, which presses the foam to the inner pipe 1 1 and fixed in position.
- Both the pipe 1 1 and the outer casing 13 are perforated in such a way that their respective perforation holes 32 in radial Rieh- tion of the pipe 1 1 are slightly offset from each other.
- the arrangement, amount, shape and size of the perforation holes 32 are selected so as to give the noise attenuator 10 a high degree of absorption with respect to low Hörschallfrequenzen.
- a uniform distribution of perforation holes 32 can be seen on the outer shell 13 and on the pipeline 11.
- the respective perforation hole 32 may have a size or a diameter of about 2 mm.
- FIGS 2, 3 and 4 show a second embodiment according to the invention of a noise damper 20, which now acts as an intake silencer in the context of an intake system 24 for an internal combustion engine in the form of a diesel engine.
- the intake silencer 20 may be connected for this purpose, for example via an optionally adjustable intake to the combustion chambers of cylinders of the diesel engine and this supply the fresh gas required for the combustion process.
- a suitable air filter (not shown) in the form of a paper or dry air filter, wet air filter or ⁇ lbadfilters be equipped, which reduces the wear on the piston, piston rings, cylinder surfaces and bearings of the Diesel engine potentially reduced.
- the intake system 24 may have additional components for preheating the intake air and for fuel injection, such as by means of a mechanically or electromagnetically actuated injection valve.
- two axially parallel aligned, pipe-piece-like connecting elements 28, 29 are further formed on the pipe 21 of the intake muffler 20. Due to their hollow cylindrical shape and specific arrangement, these connecting elements 28, 29 expand the intake silencer 20 by a fluidic connection 25 for an acoustic resonator 26 (shown only in FIG. 2), which can make a plug connection with the intake silencer 20 via a corresponding mating connection.
- the resonator 26 is spaced from the pipe 21 and the outer shell 23 and directed transversely to the flow direction of the gas mixture in the pipe 21.
- the view according to FIG. 3 reveals the manufacturing method used to manufacture the intake silencer 20.
- the outer shell 23 is formed by the combination of two half-shells 33, 34 joined together along a flange, between which the sound-absorbing material concealed in FIG. 3 by the outer shell 23 is pressed against the pipeline 21.
- the pipe 21 can be formed of two substantially identically shaped modules 35, wherein optional, between the half-shells 33, 34 to be used spacers allow adaptation of the Ansauggeräuschdämpfers 20 to absorption layers of different thickness.
- Figure 5 shows a section through such a silencer 10, 20.
- the first half-shell 33 can be seen for producing the outer shell 23 having the first connecting element 28 and the second connecting element 29, which is integrally formed on the first half-shell 33 and thus integrally Silencer 20 are formed.
- the fluidic connection between the first connection element 28 and the pipeline 1 1 is realized via a first connection region 30 of the first module 35 and thus of the pipeline 21.
- first connection region 30 and the second connection region 31 are at least partially bent. That is, the connection portions 30, 31 are disposed in a bent portion of the first module 35 and the pipe 21, respectively.
- the bending is realized here by a convex deformation of the first module 35 with respect to the connecting elements 28, 29. This means that the first module 35 or the pipeline 21 is bent in the respective connection region 30, 31 towards the associated connection element 30, 31.
- connecting regions 30, 31 are perforated.
- the connecting regions 30, 31 are perforated differently than other perforated regions of the pipeline 21. This other perforation is realized in the example shown by a larger formation of perforation holes 32 in the connecting regions 30, 31.
- connection elements 28, 29 are arranged at a distance. Accordingly, the connection areas 30, 31 are arranged at a distance. In this case, the connecting elements 28, 29 transverse to Flow direction of the gas mixture in the pipe 1 1, 21 spaced or arranged offset. In addition, it can be seen that the orientation of the connecting elements 28, 29 extends transversely to the flow direction of the gas mixture in the pipeline 21. This means that the connecting elements 28, 29 project transversely to the flow direction from the noise damper 20.
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)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102013215636.7A DE102013215636A1 (de) | 2013-08-08 | 2013-08-08 | Geräuschdämpfer |
PCT/EP2014/067022 WO2015018910A1 (de) | 2013-08-08 | 2014-08-07 | Geräuschdämpfer |
Publications (2)
Publication Number | Publication Date |
---|---|
EP3030779A1 true EP3030779A1 (de) | 2016-06-15 |
EP3030779B1 EP3030779B1 (de) | 2018-06-13 |
Family
ID=51298765
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP14748213.7A Not-in-force EP3030779B1 (de) | 2013-08-08 | 2014-08-07 | Geräuschdämpfer |
Country Status (4)
Country | Link |
---|---|
US (1) | US9605631B2 (de) |
EP (1) | EP3030779B1 (de) |
DE (1) | DE102013215636A1 (de) |
WO (1) | WO2015018910A1 (de) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US10954901B2 (en) | 2017-09-07 | 2021-03-23 | Toyota Boshoku Kabushiki Kaisha | Intake system component for internal combustion engine |
Families Citing this family (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2015077245A1 (en) * | 2013-11-19 | 2015-05-28 | Cummins Filtration Ip, Inc. | High frequency silencer for an air induction system |
DE112016002188T5 (de) * | 2015-06-11 | 2018-01-25 | Eaton Corporation | Integrierter Laderresonator |
EP3112654A1 (de) * | 2015-07-03 | 2017-01-04 | Mann+Hummel GmbH | Adapter eines akustischen systems eines gasführenden systems, akustisches system und gasführendes system mit einem akustischen system |
JP6527551B2 (ja) * | 2017-06-14 | 2019-06-05 | 本田技研工業株式会社 | 吸気ダクトモジュール |
WO2019005858A1 (en) * | 2017-06-28 | 2019-01-03 | 3M Innovative Properties Company | MICROPERFORATED CONDUIT |
JP6918417B2 (ja) * | 2017-09-05 | 2021-08-11 | タイガースポリマー株式会社 | 吸音ダクトの製造方法 |
JP7064307B2 (ja) * | 2017-10-12 | 2022-05-10 | 富士フイルムビジネスイノベーション株式会社 | 通気管路 |
FR3073012A1 (fr) * | 2017-10-27 | 2019-05-03 | Psa Automobiles Sa | Filtre a air pour une ligne d'admission d'air d'un moteur a combustion |
DE102018109710B4 (de) * | 2018-04-23 | 2022-10-20 | Dr. Ing. H.C. F. Porsche Aktiengesellschaft | Mehrteiliger Luftkanal bei einem Kraftfahrzeug sowie Verfahren zur Herstellung eines solchen Luftkanals |
US20200018272A1 (en) * | 2018-07-10 | 2020-01-16 | Ford Global Technologies, Llc | Engine air induction resistive foam element sound absorber and silencer |
US11639676B2 (en) * | 2019-06-17 | 2023-05-02 | Tenneco Automotive Operating Company Inc. | Vehicle exhaust system |
JP7196791B2 (ja) * | 2019-07-05 | 2022-12-27 | トヨタ紡織株式会社 | 内燃機関のインレットダクト |
JP7181167B2 (ja) * | 2019-08-23 | 2022-11-30 | トヨタ自動車株式会社 | 車両用吸気ダクト |
JP7432560B2 (ja) | 2021-07-30 | 2024-02-16 | 株式会社セキソー | エアクリーナー用吸音装置 |
Family Cites Families (23)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102004007109A1 (de) | 1981-02-10 | 2005-09-15 | Mann + Hummel Gmbh | Schalldämpfer für einen Luftströmungskanal |
DE59610887D1 (de) | 1995-09-05 | 2004-02-12 | Volkswagen Ag | Schalldämpfer |
JPH09144986A (ja) * | 1995-11-27 | 1997-06-03 | Nissan Motor Co Ltd | 吸音ダクト構造体 |
DE10026355B4 (de) | 2000-05-27 | 2010-06-17 | Mahle Filtersysteme Gmbh | Schalldämpfende Luftleitung |
GB2364352A (en) | 2000-07-03 | 2002-01-23 | Draftex Ind Ltd | Noise reduction in air conduits; making perforated conduits |
FR2814778B1 (fr) | 2000-09-29 | 2003-01-10 | Peugeot Citroen Automobiles Sa | Conduit pour le transport de fluide gazeux et dispositif d'admission d'air pour moteur a combustion interne comportant un tel conduit |
DE10058479A1 (de) | 2000-11-24 | 2002-05-29 | Mann & Hummel Filter | Breitbanddämpfer für den Ansaugtrakt einer Brennkraftmaschine |
DE10102040A1 (de) * | 2001-01-18 | 2002-07-25 | Mahle Filtersysteme Gmbh | Schalldämpfer |
DE10243881A1 (de) * | 2002-09-21 | 2004-04-01 | Mann + Hummel Gmbh | Schalldämpfer zur Verringerung von Luftgeräuschen und Verfahren zur Herstellung desselben |
DE60317802T2 (de) | 2003-12-11 | 2008-10-30 | Mann + Hummel Gmbh | Schalldämpfer |
DE102004038216A1 (de) | 2004-08-05 | 2006-03-16 | Mann+Hummel Gmbh | Ansaugschalldämpfer |
JP4502891B2 (ja) * | 2005-07-06 | 2010-07-14 | タイガースポリマー株式会社 | 吸気装置 |
DE102006060144A1 (de) * | 2006-12-18 | 2008-06-19 | Mahle International Gmbh | Verfahren und Vorrichtung zum Herstellen eines Rohrs |
JP2008231979A (ja) * | 2007-03-19 | 2008-10-02 | Roki Co Ltd | 消音チャンバーダクト |
JP4771546B2 (ja) * | 2007-03-22 | 2011-09-14 | 株式会社Roki | 消音ダクト |
US20080236938A1 (en) * | 2007-03-30 | 2008-10-02 | Siemens Vdo Automotive, Inc. | Induction system duct with noise attenuating holes |
DE102008061363A1 (de) * | 2007-12-12 | 2009-08-20 | Daeki Corporation, Suwon-si | Luftkanalanordnung für Fahrzeuge |
JP5084618B2 (ja) * | 2008-06-03 | 2012-11-28 | 株式会社Roki | 吸気ダクト |
WO2011059976A1 (en) * | 2009-11-11 | 2011-05-19 | Toledo Molding & Die, Inc. | Air intake apparatus |
US8800713B2 (en) * | 2010-02-11 | 2014-08-12 | Faurecia Emissions Control Technologies, Usa, Llc | Plastic muffler with Helmholtz chamber |
JP5793422B2 (ja) * | 2010-06-08 | 2015-10-14 | 株式会社イノアックコーポレーション | 吸気ダクト |
EP2541034B1 (de) * | 2011-06-28 | 2014-11-05 | Röchling Automotive AG & Co. KG | Kraftfahrzeug-Luftleitungskanal mit gedämpftem Helmholtz-Resonator |
DE102012212251A1 (de) * | 2012-07-12 | 2014-01-16 | Mahle International Gmbh | Frischluftanlagenkomponente |
-
2013
- 2013-08-08 DE DE102013215636.7A patent/DE102013215636A1/de not_active Withdrawn
-
2014
- 2014-08-07 WO PCT/EP2014/067022 patent/WO2015018910A1/de active Application Filing
- 2014-08-07 US US14/910,682 patent/US9605631B2/en not_active Expired - Fee Related
- 2014-08-07 EP EP14748213.7A patent/EP3030779B1/de not_active Not-in-force
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US10954901B2 (en) | 2017-09-07 | 2021-03-23 | Toyota Boshoku Kabushiki Kaisha | Intake system component for internal combustion engine |
Also Published As
Publication number | Publication date |
---|---|
WO2015018910A1 (de) | 2015-02-12 |
EP3030779B1 (de) | 2018-06-13 |
US20160195049A1 (en) | 2016-07-07 |
US9605631B2 (en) | 2017-03-28 |
DE102013215636A1 (de) | 2015-02-12 |
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