EP1400662A1 - Resonatorschalldämpfer - Google Patents
Resonatorschalldämpfer Download PDFInfo
- Publication number
- EP1400662A1 EP1400662A1 EP03103301A EP03103301A EP1400662A1 EP 1400662 A1 EP1400662 A1 EP 1400662A1 EP 03103301 A EP03103301 A EP 03103301A EP 03103301 A EP03103301 A EP 03103301A EP 1400662 A1 EP1400662 A1 EP 1400662A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- silencer
- perforated plate
- wall thickness
- silencer according
- combustion engine
- 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 47
- 238000002485 combustion reaction Methods 0.000 claims description 15
- 230000009467 reduction Effects 0.000 claims description 10
- 239000000463 material Substances 0.000 claims description 4
- 238000009825 accumulation Methods 0.000 claims description 2
- 238000013016 damping Methods 0.000 description 5
- 239000002184 metal Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000002238 attenuated effect Effects 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 239000004952 Polyamide Substances 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 238000004026 adhesive bonding Methods 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000001010 compromised effect Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012634 fragment Substances 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920002647 polyamide Polymers 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 230000003313 weakening effect Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Images
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N1/00—Silencing apparatus characterised by method of silencing
- F01N1/02—Silencing apparatus characterised by method of silencing by using resonance
- F01N1/023—Helmholtz resonators
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N1/00—Silencing apparatus characterised by method of silencing
- F01N1/02—Silencing apparatus characterised by method of silencing by using resonance
-
- 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
- F02M35/12—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
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N2450/00—Methods or apparatus for fitting, inserting or repairing different elements
- F01N2450/18—Methods or apparatus for fitting, inserting or repairing different elements by using quick-active type locking mechanisms, e.g. clips
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N2450/00—Methods or apparatus for fitting, inserting or repairing different elements
- F01N2450/22—Methods or apparatus for fitting, inserting or repairing different elements by welding or brazing
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N2450/00—Methods or apparatus for fitting, inserting or repairing different elements
- F01N2450/28—Methods or apparatus for fitting, inserting or repairing different elements by using adhesive material, e.g. cement
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N2450/00—Methods or apparatus for fitting, inserting or repairing different elements
- F01N2450/40—Retrofitting exhaust apparatus
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N2470/00—Structure or shape of gas passages, pipes or tubes
- F01N2470/02—Tubes being perforated
- F01N2470/04—Tubes being perforated characterised by shape, disposition or dimensions of apertures
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N2470/00—Structure or shape of gas passages, pipes or tubes
- F01N2470/24—Concentric tubes or tubes being concentric to housing, e.g. telescopically assembled
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N2490/00—Structure, disposition or shape of gas-chambers
- F01N2490/15—Plurality of resonance or dead chambers
- F01N2490/155—Plurality of resonance or dead chambers being disposed one after the other in flow direction
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N2530/00—Selection of materials for tubes, chambers or housings
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N2530/00—Selection of materials for tubes, chambers or housings
- F01N2530/18—Plastics material, e.g. polyester resin
-
- 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
- F02B37/00—Engines characterised by provision of pumps driven at least for part of the time by exhaust
Definitions
- the invention relates to a silencer according to the preamble of claim 1.
- the object of the invention is to avoid the disadvantages listed above and one To create a silencer that is easy to manufacture, takes up little space and has a very large variability in the frequency range to be damped. This object is solved by the features of claim 1.
- the silencer according to the invention works on the principle of a Helmholtz resonator, at least one sound-conducting element of this silencer at least contains a resonator chamber through a perforated plate from the corresponding Flow channel is separated.
- the perforated plate can be in the form of a tube or another self-contained element or just suitable as a fragment be designed to separate the resonator chamber and the flow-carrying channel.
- the perforated plate has at least in the direct region of the holes arranged therein a hole changed compared to the remaining wall thickness of the perforated plate Wall thickness. In this way, the frequency range to be attenuated control better without appreciably increasing the duration and vibration resistance of the perforated plate influence.
- the changed wall thickness can be found in at least one hole in the perforated plate through subsequent measures, such as B. Sinks, loops and other in the state of Implement technology known measures.
- the perforated plate can be made of metal; however, it is also conceivable that it consists of an injection-moldable material and that changed wall thicknesses in the area of at least one hole by appropriate Design of the injection mold is produced.
- the cross-sectional shape of the im Perforated plate arranged holes can be selected regardless of the changed wall thickness and be executed. Because the length of the resonator neck, i.e.
- the depth of the Hole is varied in comparison to the perforated plate thickness, can be done in the smallest space implement a broader frequency range to be damped.
- This can preferably be done Muffler in an internal combustion engine, especially a supercharged internal combustion engine deploy. But it is quite conceivable to use this silencer in other Arrange known sound-conducting lines or devices. Compressed air lines are an example here.
- An embodiment of the silencer according to the invention is characterized in that that the changed wall thickness through a conical depression with a defined Angle between the countersunk surfaces is realized.
- the damped frequency is dependent on this on the angle between the countersinks. The bigger the between the countersinks included angle, the higher the frequency to be damped.
- the reduction can on the side leading to the chamber or on the side leading to the flow channel Be arranged side of the perforated plate. It is preferably in the direction of the resonator chamber educated.
- the change in the wall thickness in the direct area of the holes arranged therein through a, comprising at least one step, the wall thickness can be gradually reduced.
- the number of Levels here can be chosen arbitrarily and depends on the desired one damping frequency range and the existing wall thickness in the perforated plate.
- the preferred one-step variant of reducing the wall thickness results in the advantage a precisely defined new resonator neck length.
- the wall thickness can be reduced in a further embodiment by an essentially hemispherical countersink.
- Another possibility to change the wall thickness in the hole area of interest is a hole-congruent casing or integration of at least one other perforated plate.
- the further perforated plate must correspond to the first perforated plate Have shape and is directly with exact hole coverage by means of adhesive process, Welding process, clip process or other known in the art Connection types connected to the first perforated plate. Proves to be advantageous the associated retrofit or retrofit option of an existing one Silencer.
- the silencer according to the invention is in a flow line of an internal combustion engine between an exhaust gas turbocharger and a charge air cooling arranged.
- the silencer is preferred near the largest sound-emitting source, namely the exhaust gas turbocharger.
- the muffler has the same cross-section as the flow line and is used between the exhaust gas turbocharger and the flow line to the charge air cooler.
- the silencer according to the invention is the flow line between exhaust gas turbocharger and intercooler itself.
- the silencer according to the invention is in a sound-conducting element inside an exhaust gas turbocharger of an internal combustion engine arranged.
- an exhaust gas turbocharger of an internal combustion engine arranged.
- the silencer according to the invention is in a sound-conducting element inside an exhaust gas turbocharger of an internal combustion engine arranged.
- the silencer according to the invention is a use in or on all sound-conducting parts of the exhaust gas turbocharger conceivable and possible.
- the Silencers individually or in combination with other silencers in different Positions are used.
- the silencer according to the invention in a sound-conducting element in an exhaust pipe of the internal combustion engine arranged. Since there are also sound waves in certain frequency ranges on the exhaust side to dampen, it is also possible to use this silencer on one or to arrange several points in the exhaust pipe system.
- the silencer can serve as a flange connection between two line parts or in the Line be integrated.
- the silencer according to the invention can be used in combination can be combined with other mufflers known in the prior art.
- Another embodiment of the invention is characterized in that the silencer with a combination of rows of holes with different wall thicknesses of the Perforated sheet is provided for broadband sound absorption. Because of the different Wall thicknesses in the area of individual holes or rows of holes can be a particular one attenuate a wide range of frequencies. The different wall thicknesses can as described above through subsequent processing or already in the manufacturing process of the perforated plate can be achieved.
- the muffler is preferably a combination here of rows of holes with different wall thicknesses of the perforated plate have the rows of holes.
- At least one sound-conducting element at least contains a chamber through a perforated plate from the corresponding flow channel is separated and thus constructed according to the principle of a Helmholtz resonator is to provide.
- the perforated plate in the direct area of the holes arranged therein have a conical countersink for each hole, the Angle between the countersinks is between 60 and 150 °.
- the resonator tube is made of metal and the depressions are mechanically introduced from the outside.
- the wall thickness is Perforated sheet in the non-countersunk areas between 0.5 and 5 mm and the hole diameter between 1 and 20 mm.
- this silencer it is also advantageous for this silencer to have the ratio between the chamber volume and the sum of the perforated sheets between 4 and 40 cm 3 per cm 2 .
- the silencer according to the invention is advantageously used in an internal combustion engine used at least one exhaust gas turbocharger, where it is on the intake side and / or exhaust side can be used.
- FIG. 1 shows a schematic view of an embodiment of the invention.
- a silencer 10 consisting of a perforated plate 11 and a resonator chamber wall 14.
- the perforated plate 11 has a substantially cylindrical shape and separates the flow channel running inside the perforated plate 11 from two Resonator chambers 13a, 13b. These are by the perforated plate 11 in the radial Spacing surrounding resonator chamber wall 14 is formed, the chambers 13a, 13b be separated from each other by a partition 15.
- perforated plate 11 has cutouts 12 which are used to produce the Helmholtz effect serve and are distributed over the entire scope.
- the recesses 12 are countersunk in the perforated plate 11 in the direction of the resonator chamber wall 14 the two rows of holes each have a different countersink angle. This gives there is broadband attenuation of the emitted sound because of the different Different resonator neck lengths can be achieved.
- the perforated plate 11 made of metal with options at the respective ends to be connected to further pipeline parts or an exhaust gas turbocharger.
- the resonator chamber wall consists of a plastic, such as Polyamide 6.6 (PA 6.6) and is sealed with the perforated sheet via gluing or other in the prior art known connection method connected.
- the cutouts in the recesses 12 are mechanically connected between the perforated plate 11 and the resonator chamber wall 14, with defined countersink angles. Due to the subsidence, the effective one gives way Resonator neck length from the original resonator neck length, namely the perforated plate wall thickness s, down.
- FIG. 2 shows the relationship between countersink angle ⁇ and resonator neck length s. Components corresponding to FIG. 1 are provided with the same reference symbols.
- FIG. 2 shows 3 sections of the perforated plate 11 in the area of the cutouts 12, each with different countersinks and different countersink angles ⁇ i .
- the lower section according to FIG. 2c shows a perforated plate 11 in the region of a recess 12, which has no countersink, which corresponds to the prior art, and the effective resonator neck length s i corresponds to the wall thickness s of the perforated plate 11.
- One way to increase the frequency to be damped is to reduce the effective resonator neck length s i .
- FIG. 2b again shows a perforated plate 11 in the region of a recess 12 with a depression at the depression angle ⁇ 2 .
- the countersink angle ⁇ i has been increased to a countersink angle ⁇ 1 compared to the middle section. Due to the increased angle of depression ⁇ 1 , there is again a reduced resonator neck length s 1 .
- FIG. 3 The effects of the reduction of the effective resonator neck length s i on the frequency F to be damped are shown in FIG. 3.
- the basic effect of Helmholtz resonators with a damping factor of over 20 dB compared to a line with the same diameter without a silencer according to the X curve can be clearly seen. Furthermore, there is a shift in the attenuated frequencies with different or no reductions in the area of the cutouts 12 of the perforated plate 11.
- the muffler tested has a full row of holes with an equally full, concentric resonator chamber. If the recesses are reduced compared to the recesses that are not recessed, the damped frequency shifts in the direction of the higher frequencies.
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Exhaust Silencers (AREA)
- Supercharger (AREA)
- Medicines Containing Material From Animals Or Micro-Organisms (AREA)
Abstract
Description
- Figur 1
- Schematische Ansicht eines erfindungsgemäßen Schalldämpfers in einer besonderen Ausführungsform
- Figur 2
- Darstellung der Korrelation zwischen Senkwinkel und Resonatorhalslänge
- Figur 3
- Darstellung des Einflusses des Senkwinkels auf das Dämpfungsmaß
Claims (16)
- Schalldämpfer, insbesondere einer Brennkraftmaschine, vorzugsweise einer aufgeladenen Brennkraftmaschine, wobei wenigstens ein schallführendes Element wenigstens eine Resonatorkammer enthält, die durch ein Lochblech vom korrespondierenden Strömungskanal getrennt ist und dadurch nach dem Prinzip eines Helmholtz-Resonators aufgebaut ist, dadurch gekennzeichnet, dass das Lochblech im direkten Bereich der darin angeordneten Löcher an wenigstens einem Loch eine veränderte Wandstärke aufweist.
- Schalldämpfer nach Anspruch 1, dadurch gekennzeichnet, dass die veränderte Wandstärke durch eine kegelförmige Senkung mit einem definierten Winkel zwischen den Senkflächen realisiert ist
- Schalldämpfer nach Anspruch 1, dadurch gekennzeichnet, dass die veränderte Wandstärke durch eine wenigstens eine Stufe umfassende stufenweise Verringerung der Wandstärke realisiert ist.
- Schalldämpfer nach Anspruch 1, dadurch gekennzeichnet, dass die veränderte Wandstärke durch eine, im wesentlichen halbkugelförmige Senkung realisiert ist.
- Schalldämpfer nach Anspruch 1, dadurch gekennzeichnet, dass die veränderte Wandstärke durch eine gezielte Wandmaterialanhäufung in diesem Bereich realisiert ist.
- Schalldämpfer nach Anspruch 1, dadurch gekennzeichnet, dass die veränderte Wandstärke durch eine lochkongruente Verbindung mit wenigstens einem weiteren Lochblech realisiert ist.
- Schalldämpfer nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass der Schalldämpfer in einer Strömungsleitung einer Brennkraftmaschine zwischen einem Abgasturbolader und einer Ladeluftkühlung angeordnet ist.
- Schalldämpfer nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, dass der Schalldämpfer in einem schallführendem Element im Innern eines Abgasturboladers einer Brennkraftmaschine angeordnet ist.
- Schalldämpfer nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, dass der Schalldämpfer in einem schallführenden Element in einer abgasseitigen Leitung der Brennkraftmaschine angeordnet ist.
- Schalldämpfer nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass der Schalldämpfer mit einer Kombination von Lochreihen mit unterschiedlichen Wandstärken des Lochblechs zur breitbandigeren Schalldämpfung versehen ist.
- Schalldämpfer, insbesondere für eine Brennkraftmaschine mit Turbolader, wobei wenigstens ein schallführendes Element wenigstens eine Kammer enthält, die durch ein Lochblech vom korrespondierenden Strömungskanal getrennt ist und dadurch nach dem Prinzip eines Helmholtz-Resonators aufgebaut ist, dadurch gekennzeichnet, dass das Lochblech im direkten Bereich der darin angeordneten Löcher bei jedem Loch eine kegelförmige Senkung enthält und wobei der Winkel zwischen den Senkflächen zwischen 60° und 150° beträgt.
- Schalldämpfer nach Anspruch 11, dadurch gekennzeichnet, dass die Wandstärke des Lochblechs in den Bereichen, die nicht angesenkt sind, zwischen 0,5 und 5 mm beträgt und der Lochdurchmesser zwischen 1 und 20 mm beträgt.
- Schalldämpfer nach einem der Ansprüche 11 oder 12, dadurch gekennzeichnet, dass der radiale Abstand zwischen Lochblech und einer äußeren Begrenzungswand zwischen 1 und 40 mm beträgt.
- Schalldämpfer nach einem oder mehreren der Ansprüche 11 bis 13, dadurch gekennzeichnet, dass das Verhältnis zwischen Kammervolumen und Summe der Lochflächen zwischen 4 und 40 cm3/cm2 beträgt.
- Schalldämpfer nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass eine Veränderung der Lochblechwandstärke eine Änderung der wirksamen Resonatorhalslänge ergibt.
- Brennkraftmaschine mit wenigstens einem Abgasturbolader, dadurch gekennzeichnet, dass ein Schalldämpfer nach einem der vorhergehenden Ansprüche vorhanden ist.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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DE10243884 | 2002-09-21 | ||
DE10243884A DE10243884A1 (de) | 2002-09-21 | 2002-09-21 | Resonatorschalldämpfer |
Publications (2)
Publication Number | Publication Date |
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EP1400662A1 true EP1400662A1 (de) | 2004-03-24 |
EP1400662B1 EP1400662B1 (de) | 2007-08-08 |
Family
ID=31896264
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP03103301A Expired - Lifetime EP1400662B1 (de) | 2002-09-21 | 2003-09-05 | Resonatorschalldämpfer |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP1400662B1 (de) |
AT (1) | ATE369485T1 (de) |
DE (2) | DE10243884A1 (de) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102010020064A1 (de) | 2010-05-11 | 2011-11-17 | Bayerische Motoren Werke Aktiengesellschaft | Schalldämpferanordnung für eine insbesondere aufgeladene Kraftfahrzeug-Brennkraftmaschine |
EP2534343A2 (de) * | 2010-02-11 | 2012-12-19 | Faurecia Emissions Control Technologies, USA, LLC | Kunststoffauspuff mit helmholtz-kammer |
EP2757235A1 (de) | 2013-01-16 | 2014-07-23 | Henn GmbH & Co.KG | Schalldämpfer und Verfahren zu seiner Herstellung |
WO2016061604A1 (de) | 2014-10-21 | 2016-04-28 | Henn Gmbh & Co Kg. | Fahrzeugschalldämpfer für eine ladeluftleitung eines verbrennungsmotors |
CN107407484A (zh) * | 2015-07-08 | 2017-11-28 | 三菱日立电力系统株式会社 | 燃烧器以及燃气涡轮 |
US20230003479A1 (en) * | 2021-06-04 | 2023-01-05 | Daren BERG | Firearm noise suppressor |
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Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102019002157B4 (de) * | 2019-03-26 | 2023-03-02 | Stefanie Gernert | Wand zur tieffrequenten und breit-frequenzbandingen, massiven schalldämpfung flächig einfallenden schalls |
US11808187B2 (en) | 2021-03-01 | 2023-11-07 | Caterpillar Inc. | Noise attenuation components |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4164266A (en) * | 1976-08-19 | 1979-08-14 | Lars Collin | Exhaust gas muffler |
FR2540912A2 (fr) * | 1982-06-02 | 1984-08-17 | Uzan Daniel | Dispositif absorbeur acoustique passif absorbant aussi les basses frequences |
FR2743848A1 (fr) * | 1996-01-24 | 1997-07-25 | Peugeot | Dispositif d'attenuation reglable des bruits emis par des gaz en circulation d'un moteur de vehicule automobile |
FR2751375A1 (fr) * | 1996-07-20 | 1998-01-23 | Heinrich Gillet Gmbh Co Kg | Dispositif destine a supprimer la formation de sons harmoniques dans des tubes perfores |
WO1998059166A1 (de) * | 1997-06-20 | 1998-12-30 | Filterwerk Mann+Hummel Gmbh | Ansaugsystem, insbesondere zur verwendung als ansaugkanal einer verbrennungskraftmaschine |
US5930371A (en) * | 1997-01-07 | 1999-07-27 | Nelson Industries, Inc. | Tunable acoustic system |
DE10102040A1 (de) * | 2001-01-18 | 2002-07-25 | Mahle Filtersysteme Gmbh | Schalldämpfer |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
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FR2376994A1 (fr) * | 1977-01-11 | 1978-08-04 | Snecma | Perfectionnements aux dispositifs a cavites resonnantes pour la reduction du bruit dans un conduit en presence d'un flux gazeux |
DE19818873C2 (de) * | 1998-04-28 | 2001-07-05 | Man B & W Diesel Ag | Hubkolbenbrennkraftmaschine |
-
2002
- 2002-09-21 DE DE10243884A patent/DE10243884A1/de not_active Withdrawn
-
2003
- 2003-09-05 DE DE50307856T patent/DE50307856D1/de not_active Expired - Lifetime
- 2003-09-05 EP EP03103301A patent/EP1400662B1/de not_active Expired - Lifetime
- 2003-09-05 AT AT03103301T patent/ATE369485T1/de not_active IP Right Cessation
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4164266A (en) * | 1976-08-19 | 1979-08-14 | Lars Collin | Exhaust gas muffler |
FR2540912A2 (fr) * | 1982-06-02 | 1984-08-17 | Uzan Daniel | Dispositif absorbeur acoustique passif absorbant aussi les basses frequences |
FR2743848A1 (fr) * | 1996-01-24 | 1997-07-25 | Peugeot | Dispositif d'attenuation reglable des bruits emis par des gaz en circulation d'un moteur de vehicule automobile |
FR2751375A1 (fr) * | 1996-07-20 | 1998-01-23 | Heinrich Gillet Gmbh Co Kg | Dispositif destine a supprimer la formation de sons harmoniques dans des tubes perfores |
US5930371A (en) * | 1997-01-07 | 1999-07-27 | Nelson Industries, Inc. | Tunable acoustic system |
WO1998059166A1 (de) * | 1997-06-20 | 1998-12-30 | Filterwerk Mann+Hummel Gmbh | Ansaugsystem, insbesondere zur verwendung als ansaugkanal einer verbrennungskraftmaschine |
DE10102040A1 (de) * | 2001-01-18 | 2002-07-25 | Mahle Filtersysteme Gmbh | Schalldämpfer |
Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2534343A2 (de) * | 2010-02-11 | 2012-12-19 | Faurecia Emissions Control Technologies, USA, LLC | Kunststoffauspuff mit helmholtz-kammer |
EP2534343A4 (de) * | 2010-02-11 | 2015-04-22 | Faurecia Emissions Control Technologies Usa Llc | Kunststoffauspuff mit helmholtz-kammer |
DE102010020064A1 (de) | 2010-05-11 | 2011-11-17 | Bayerische Motoren Werke Aktiengesellschaft | Schalldämpferanordnung für eine insbesondere aufgeladene Kraftfahrzeug-Brennkraftmaschine |
DE102010020064B4 (de) | 2010-05-11 | 2019-10-02 | Bayerische Motoren Werke Aktiengesellschaft | Schalldämpferanordnung für eine insbesondere aufgeladene Kraftfahrzeug-Brennkraftmaschine |
EP2757235A1 (de) | 2013-01-16 | 2014-07-23 | Henn GmbH & Co.KG | Schalldämpfer und Verfahren zu seiner Herstellung |
WO2016061604A1 (de) | 2014-10-21 | 2016-04-28 | Henn Gmbh & Co Kg. | Fahrzeugschalldämpfer für eine ladeluftleitung eines verbrennungsmotors |
CN107407484A (zh) * | 2015-07-08 | 2017-11-28 | 三菱日立电力系统株式会社 | 燃烧器以及燃气涡轮 |
CN107407484B (zh) * | 2015-07-08 | 2019-12-03 | 三菱日立电力系统株式会社 | 燃烧器以及燃气涡轮 |
US10712004B2 (en) | 2015-07-08 | 2020-07-14 | Mitsubishi Hitachi Power Systems, Ltd. | Combustor including an acoustic device mounted on a combustion liner for damping combustion oscillation of a predetermined frequency and gas turbine |
US20230003479A1 (en) * | 2021-06-04 | 2023-01-05 | Daren BERG | Firearm noise suppressor |
Also Published As
Publication number | Publication date |
---|---|
DE50307856D1 (de) | 2007-09-20 |
ATE369485T1 (de) | 2007-08-15 |
EP1400662B1 (de) | 2007-08-08 |
DE10243884A1 (de) | 2004-04-01 |
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