EP1469186A2 - Device for reducing the noise emissions - Google Patents
Device for reducing the noise emissions Download PDFInfo
- Publication number
- EP1469186A2 EP1469186A2 EP04005095A EP04005095A EP1469186A2 EP 1469186 A2 EP1469186 A2 EP 1469186A2 EP 04005095 A EP04005095 A EP 04005095A EP 04005095 A EP04005095 A EP 04005095A EP 1469186 A2 EP1469186 A2 EP 1469186A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- housing
- air intake
- intake pipe
- air
- bulged
- 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.)
- Withdrawn
Links
- 238000002485 combustion reaction Methods 0.000 claims abstract description 14
- 230000000087 stabilizing effect Effects 0.000 claims description 7
- 230000006698 induction Effects 0.000 abstract 2
- 238000002955 isolation Methods 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 239000004753 textile Substances 0.000 description 1
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
- F02M35/10—Air intakes; Induction systems
- F02M35/10006—Air intakes; Induction systems characterised by the position of elements of the air intake system in direction of the air intake flow, i.e. between ambient air inlet and supply to the combustion chamber
- F02M35/10013—Means upstream of the air filter; Connection to the ambient air
-
- 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
- F02M35/10137—Flexible ducts, e.g. bellows or hoses
-
- 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
- F02M35/1205—Flow throttling or guiding
- F02M35/1222—Flow throttling or guiding by using adjustable or movable elements, e.g. valves, membranes, bellows, expanding or shrinking elements
-
- 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
Definitions
- the invention relates to a device for reducing noise emissions according to the feature in the preamble of claim 1.
- a disadvantage of the described configuration is that it may occur Relative movements between the air collecting tract of the internal combustion engine and one, the component supplying the intake air, by additional Decoupling measures must be decoupled. This also applies to supercharged internal combustion engines, in which after a charge pump heated intake air must be cooled in an intercooler before it is fed to the internal combustion engine. Such intercoolers are usually used arranged stationary to the body of the motor vehicle, during the Air collecting tract is stationary to the internal combustion engine.
- the object of the present invention is to provide a generic device for To show the reduction of noise emissions with which it is possible Relative movements between the intake tract of an internal combustion engine and Balance body fixed components.
- the housing is advantageously a flexible bellows.
- the housing is connected on the one hand to the air intake pipe and on the other hand to a body-fixed, air-supplying component.
- one section of the housing serves to reduce the noise emission, while the other section of the housing serves as a flexible connection between an air collecting tract fixed to the internal combustion engine and an air-guiding component fixed to the body.
- the housing is according to claim 2 both opposite the gas-carrying pipe and the gas-carrying pipe Component sealed gastight.
- the air collecting tract according to Claim 3 directly with the pressure side of the charger or an intercooler get connected.
- An embodiment according to claims 4 to 6 ensures that the Openings always in the area of a bulged area of the housing are arranged. In the event that several openings in the direction of flow Arranged one behind the other, these can be in different chambers, i.e. H. in various folds of the housing, open out. Because the constricted areas, by means of stabilizing elements, here wire rings, firmly on the air intake pipe single, separate, independent and acoustically decoupled resonator chambers. Furthermore, the serve Stabilizing elements of the additional attachment of the housing on the Air intake pipe.
- the bulged and the constricted areas radially around the air intake pipe One or everyone bulged area can be assigned several openings. Through this The arrangement is on the one hand an optimal vibration isolation between the Internal combustion engine fixed component and the component fixed to the body guaranteed while at the same time the openings in the air intake pipe over the entire scope can be distributed.
- a resonator chamber is formed, the damping frequency band of which previously mentioned parameters is dependent.
- Figure 1 shows the top view of a sectional view of an inventive Device for reducing noise emissions. It is a section of one Air intake pipe 1 shown, which at one end radially at its Has outer circumference openings 2, 2 '. The openings 2, 2 'are in three radial Circumferential sections arranged separately. The single ones Circumferential sections are each radially connected to the air intake pipe 1 enclosing groove 6, 6 'separated from each other. Radially around that with bores 2, 2 ' provided end of the air intake pipe 1 is a housing 3, a tubular Bellows, arranged. The housing 3 has bulged areas 3a, 3a ' and constricted areas 3b, 3b '.
- Each constricted area 3b, 3b ' is from a stabilizing element 4, 4 ', each a wire ring, in which each correspond Groove 6, 6 'held.
- the housing 3 forms an extension of the air intake pipe 1
- the extension is with another closure element 7 'on another gas-carrying component 5 attached.
- This closure element 7 ' is also one commercially available clamp. While the air intake pipe 1 is fixed to the internal combustion engine, the gas-carrying component 5 is arranged fixed to the body. in the The gas-carrying component 5 is a flange of an exemplary embodiment Intercooler, but it can also be a charger flange or other gas-carrying Component. Also a reverse attachment with respect to the body and the Internal combustion engine is possible.
- the housing 3 serves as sound-absorbing housing, with the air intake noise, as well as noise for example, a loader, can be effectively damped.
- the housing 3 meets the Double function of sound attenuation on the one hand and vibration isolation on the other hand.
- the housing 3 is a polymer-based one Bellows, however, can also use other flexible building materials, such as Silicones or rubber.
Abstract
Description
Die Erfindung betrifft eine Vorrichtung zur Reduzierung von Schallemissionen gemäß dem Merkmal im Oberbegriff des Patentanspruches 1.The invention relates to a device for reducing noise emissions according to the feature in the preamble of claim 1.
Sie geht von der noch nicht veröffentlichten deutschen Patentanmeldung DE 102 26 985 A1 aus. In dieser ist ein Luftansaugrohr für eine Brennkraftmaschine vorgeschlagen, das an seinem Umfang Öffnungen aufweist. Diese Öffnungen sind wiederum gegenüber der Umwelt von einem um das Luftansaugrohr angeordneten Gehäuse verschlossen. Die Öffnungen in Verbindung mit dem Volumen des Gehäuses bilden eine Absorptionskammer. Durch diese Anordnung ist es möglich, Schallemissionen, die im Luftansaugrohr erzeugt werden, wirksam zu dämpfen. Die Gehäuse werden mittels eines Innenhochdruckumformverfahrens aus Metall gefertigt und ortsfest mit dem Luftansaugrohr verbunden. Mit Hilfe des Innenhochdruckumformens ist es möglich Gehäuse herzustellen, die auf gekrümmten Luftansaugrohren anbringbar sind.It is based on the as yet unpublished German patent application DE 102 26 985 A1. In this is an air intake pipe for an internal combustion engine proposed that has openings on its circumference. These openings are again to the environment from one arranged around the air intake pipe Housing closed. The openings in connection with the volume of the Housing form an absorption chamber. With this arrangement it is possible Effectively dampen noise emissions generated in the air intake pipe. The Housings are made of metal using an internal high-pressure forming process manufactured and fixedly connected to the air intake pipe. With the help of Hydroforming, it is possible to manufacture the housing curved air intake pipes are attachable.
Nachteilig an der beschriebenen Ausgestaltung ist es, dass eventuell auftretende Relativbewegungen zwischen dem Luftsammeltrakt der Brennkraftmaschine und einem, die Ansaugluft liefernden Bauteil, durch zusätzliche Entkopplungsmaßnahmen entkoppelt werden müssen. Dies gilt auch für aufgeladene Brennkraftmaschinen, bei denen nach einer Ladepumpe die aufgeheizte Ansaugluft in einem Ladeluftkühler abgekühlt werden muss, bevor sie der Brennkraftmaschine zugeführt wird. Üblicherweise sind derartige Ladeluftkühler ortsfest zur Karosserie des Kraftfahrzeuges angeordnet, während der Luftsammeltrakt ortsfest zur Brennkraftmaschine ist.A disadvantage of the described configuration is that it may occur Relative movements between the air collecting tract of the internal combustion engine and one, the component supplying the intake air, by additional Decoupling measures must be decoupled. This also applies to supercharged internal combustion engines, in which after a charge pump heated intake air must be cooled in an intercooler before it is fed to the internal combustion engine. Such intercoolers are usually used arranged stationary to the body of the motor vehicle, during the Air collecting tract is stationary to the internal combustion engine.
Aufgabe der vorliegenden Erfindung ist es, eine gattungsgemäße Vorrichtung zur Reduzierung von Schallemissionen aufzuzeigen, mit der es möglich ist Relativbewegungen zwischen dem Ansaugtrakt einer Brennkraftmaschine und zur Karosserie ortsfesten Bauteilen auszugleichen.The object of the present invention is to provide a generic device for To show the reduction of noise emissions with which it is possible Relative movements between the intake tract of an internal combustion engine and Balance body fixed components.
Diese Aufgabe ist durch das Merkmal im kennzeichnenden Teil des Patentanspruches
1 gelöst.
In vorteilhafter Weise ist das Gehäuse ein flexibler Faltenbalg. Durch diese
Ausgestaltung wird das Gehäuse einerseits mit dem Luftansaugrohr und
andererseits mit einem karosseriefesten, luftzuführenden Bauteil verbunden. Somit
dient ein Abschnitt des Gehäuses zur Reduzierung der Schallemission, während der
andere Abschnitt des Gehäuses als flexible Verbindung zwischen einem zur
Brennkraftmaschine ortsfesten Luftsammeltrakt und einem zur Karosserie
ortsfesten, luftführenden Bauelement dient.This object is achieved by the feature in the characterizing part of patent claim 1.
The housing is advantageously a flexible bellows. With this configuration, the housing is connected on the one hand to the air intake pipe and on the other hand to a body-fixed, air-supplying component. Thus, one section of the housing serves to reduce the noise emission, while the other section of the housing serves as a flexible connection between an air collecting tract fixed to the internal combustion engine and an air-guiding component fixed to the body.
Damit keine Fehlluft ausgeblasen wird, ist das Gehäuse gemäß Patentanspruch 2 sowohl gegenüber dem gasführenden Rohr, als auch dem gasführenden Bauelement gasdicht verschlossen.So that no incorrect air is blown out, the housing is according to claim 2 both opposite the gas-carrying pipe and the gas-carrying pipe Component sealed gastight.
Mit der erfindungsgemäßen Vorrichtung kann der Luftsammeltrakt gemäß Patentanspruch 3 direkt mit der Druckseite des Laders oder eines Ladeluftkühlers verbunden werden.With the device according to the invention, the air collecting tract according to Claim 3 directly with the pressure side of the charger or an intercooler get connected.
Eine Ausgestaltung gemäß der Patentansprüche 4 bis 6 stellt sicher, dass die
Offnungen immer im Bereich eines ausgebuchteten Bereichs des Gehäuses
angeordnet sind. Für den Fall, dass mehrere Öffnungen in Strömungsrichtung
hintereinander angeordnet sind, können diese in unterschiedliche Kammern, d. h. in
verschiedenen Falten des Gehäuses, münden. Da die eingeschnürten Bereiche,
durch Stabilisierungselemente, hier Drahtringe, fest auf das Luftansaugrohr
gedrückt werden, entstehen einzelne, separate, voneinander unabhängige und
akustisch entkoppelte Resonatorkammern. Ferner dienen die
Stabilisierungselemente der zusätzlichen Befestigung des Gehäuses auf dem
Luftansaugrohr.An embodiment according to
Gemäß Patentanspruch 7 und 8 erstrecken sich die ausgebuchteten und die eingeschnürten Bereiche radial um das Luftansaugrohr. Einem, bzw. jedem ausgebuchteten Bereich können mehrere Öffnungen zugeordnet sein. Durch diese Anordnung ist einerseits eine optimale Schwingungsisolierung zwischen dem zur Brennkraftmaschine ortsfesten Bauteil und dem zur Karosserie ortsfesten Bauteil gewährleistet, während gleichzeitig die Öffnungen im Luftansaugrohr über den gesamten Umfang verteilt werden können.According to claims 7 and 8, the bulged and the constricted areas radially around the air intake pipe. One or everyone bulged area can be assigned several openings. Through this The arrangement is on the one hand an optimal vibration isolation between the Internal combustion engine fixed component and the component fixed to the body guaranteed while at the same time the openings in the air intake pipe over the entire scope can be distributed.
Über die Anzahl der Bohrungen, deren Öffnungsquerschnitt in Verbindung mit dem Volumen der einzelnen ausgebuchteten Bereiche wird gemäß Patentanspruch 9 eine Resonatorkammer gebildet, deren Dämpfungsfrequenzband von den zuvor genannten Parametern abhängig ist. Durch eine Abstimmung der Parameter (Anzahl der Öffnungen in Verbindung mit deren Querschnittsfläche und Volumen der ausgebuchteten Bereiche) wird die bestmögliche akustische Reduzierung der Schallemission erzielt.About the number of holes, the opening cross-section in connection with the Volume of the individual bulged areas is according to claim 9 a resonator chamber is formed, the damping frequency band of which previously mentioned parameters is dependent. By coordinating the parameters (Number of openings in connection with their cross-sectional area and volume of the fully booked areas) is the best possible acoustic reduction of the Sound emission achieved.
Im Folgenden ist die Erfindung anhand eines bevorzugten Ausführungsbeispieles in einer einzigen Figur näher erläutert.In the following, the invention is shown in FIG a single figure explained.
Figur 1 zeigt die Aufsicht auf eine Schnittdarstellung einer erfindungsgemäßen
Vorrichtung zur Reduzierung von Schallemissionen. Es ist ein Abschnitt eines
Luftansaugrohres 1 dargestellt, welches an einem Ende radial an seinem
Außenumfang Öffnungen 2, 2' aufweist. Die Öffnungen 2, 2' sind in drei radialen
Umfangsabschnitten getrennt voneinander angeordnet. Die einzelnen
Umfangsabschnitte werden jeweils durch eine radial das Luftansaugrohr 1
umschließende Rille 6, 6' voneinander getrennt. Radial um das mit Bohrungen 2, 2'
versehene Ende des Luftansaugrohrs 1 ist ein Gehäuse 3, ein rohrförmiger
Faltenbalg, angeordnet. Das Gehäuse 3 weist ausgebuchtete Bereiche 3a, 3a'
sowie eingeschnürte Bereiche 3b, 3b' auf. Die eingeschnürten Bereiche 3b, 3b' und
die ausgebuchteten Bereiche 3a, 3a' erstrecken sich radial um den Umfang des
Luftansaugrohrs 1. Die eingeschnürten Bereiche 3b, 3b' liegen in den Rillen 6, 6'
auf. Ein Ende des Gehäuses 3, das einen Bereich des Luftansaugrohrs 1
umschließt, ist mit einem Verschlusselement 7, eine Schelle, um das
Luftansaugrohr 1 gasdicht befestigt. Jeder eingeschnürte Bereich 3b, 3b' wird von
einem Stabilisierungselement 4, 4', je ein Drahtring, in der jeweils korrespondieren
Rille 6, 6' gehalten. Das Gehäuse 3 bildet eine Verlängerung des Luftansaugrohres
1 Die Verlängerung ist mit einem weiteren Verschlusselement 7' an einem weiteren
gasführenden Bauteil 5 befestigt. Auch dieses Verschlusselement 7' ist eine
handelsübliche Schelle. Während das Luftansaugrohr 1 brennkraftmaschinenfest ist,
ist das gasführende Bauelement 5 karosseriefest angeordnet. Im
Ausführungsbeispiel ist das gasführende Bauelement 5 ein Flansch eines
Ladeluftkühlers, jedoch kann es auch ein Laderflansch oder sonstiges gasführende
Bauteil sein. Auch eine umgekehrte Befestigung bezüglich der Karosserie und der
Brennkraftmaschine ist möglich.Figure 1 shows the top view of a sectional view of an inventive
Device for reducing noise emissions. It is a section of one
Air intake pipe 1 shown, which at one end radially at its
Has outer circumference openings 2, 2 '. The openings 2, 2 'are in three radial
Circumferential sections arranged separately. The single ones
Circumferential sections are each radially connected to the air intake pipe 1
enclosing groove 6, 6 'separated from each other. Radially around that with bores 2, 2 '
provided end of the air intake pipe 1 is a housing 3, a tubular
Bellows, arranged. The housing 3 has bulged
Beim Betrieb der Brennkraftmaschine führt diese Relativbewegungen gegenüber
der Karosserie aus. Derartige Relativbewegungen werden von dem Gehäuse 3
durch flexible Verformung der Faltenbälge aufgefangen, so dass keine
Beschädigung zwischen einem brennkraftmaschinenfesten Bauelement, wie z. B.
dem Luftansaugrohr 1 und einem karosseriefesten Bauelement, wie. z. B. dem
Ladeluftkühler, auftreten können. Gleichzeitig dient das Gehäuse 3 als
schallabsorbierendes Gehäuse, mit dem Luftansauggeräusche, sowie Geräusche
beispielsweise eines Laders, wirkungsvoll gedämpft werden können. Die
ausgebuchteten Bereiche 3a, 3a' bilden in Verbindung mit den Öffnungen 2, 2'
Resonatorkammern, die frequenzmäßig auf den Frequenzbereich der
Schallemission, beispielsweise durch Veränderung von Größe und Anzahl der
Öffnungen 2, 2', abgestimmt werden können. Somit erfüllt das Gehäuse 3 die
Doppelfunktion der Schalldämpfung einerseits sowie der Schwingungsisolierung
andererseits.When the internal combustion engine is operating, this leads to relative movements
the body. Such relative movements are caused by the housing 3
caught by flexible deformation of the bellows so that none
Damage between an engine-fixed component, such as. B.
the air intake pipe 1 and a body-fixed component, such as. z. B. the
Intercooler, can occur. At the same time, the housing 3 serves as
sound-absorbing housing, with the air intake noise, as well as noise
for example, a loader, can be effectively damped. The
bulged
Im vorliegenden Ausführungsbeispiel ist das Gehäuse 3 ein polymerbasierter Faltenbalg, jedoch können auch andere flexible Baustoffe, wie beispielsweise Silikone oder Gummi, zum Einsatz kommen. Die Verschlusselemente 7, 7' sind Kabelschellen, statt derer auch Klemmen anderer Art eingesetzt werden können. In the present exemplary embodiment, the housing 3 is a polymer-based one Bellows, however, can also use other flexible building materials, such as Silicones or rubber. The closure elements 7, 7 'are Cable clips, instead of which other types of clamps can be used.
Anstelle der Drahtringe als Stabilisierungselemente 4, 4' könnten auch textile
Fasern eingesetzt werden. Instead of the wire rings as stabilizing
- 11
- Luftansaugrohrair intake pipe
- 2, 2'2, 2 '
- Öffnungopening
- 33
- Gehäusecasing
- 3a, 3a'3a, 3a '
- ausgebuchteter Bereichfully booked area
- 3b, 3b'3b, 3b '
- eingeschnürter Bereichconstricted area
- 4, 4'4, 4 '
- Stabilisierungselementstabilizing element
- 55
- Gasführendes BauelementGas-carrying component
- 6, 6'6, 6 '
- Rillengrooves
- 7, 7'7, 7 '
- Verschlusselementclosure element
Claims (9)
dadurch gekennzeichnet, dass das Gehäuse (3) ein flexibler Faltenbalg ist.Device for reducing sound emissions of an air guide pipe (1) of an internal combustion engine, which connects an air collection tract and a charger of the internal combustion engine in a gas-conducting manner at least in sections on the pressure side of the charger and has at least one opening (2, 2 ') on its circumference, which is separated from a housing (3) is covered,
characterized in that the housing (3) is a flexible bellows.
dadurch gekennzeichnet, dass das Gehäuse (3) einerseits gegenüber dem Luftansaugrohr (1) und andererseits gegenüber einem luftführenden Bauelement (5) gasdicht verschlossen ist.Device according to claim 1,
characterized in that the housing (3) is sealed gas-tight on the one hand with respect to the air intake pipe (1) and on the other hand with respect to an air-guiding component (5).
dadurch gekennzeichnet, dass das gasführende Bauelement (5) der Lader oder ein Ladeluftkühler ist. Device according to claim 2,
characterized in that the gas-carrying component (5) is the charger or an intercooler.
dadurch gekennzeichnet, dass die Öffnung (2, 2') in einem ausgebuchteten Bereich (3a, 3a') angeordnet ist.Device according to one of the claims 1 to 3, wherein the housing (3) has at least one bulged (3a, 3a ') and one constricted area (3b, 3b') which is in contact with an outer surface of the air intake pipe (1),
characterized in that the opening (2, 2 ') is arranged in a bulged area (3a, 3a').
dadurch gekennzeichnet, dass zumindest ein eingeschnürter Bereich (3b, 3b') von einem Stabilisierungselement (4, 4') auf die Außenfläche des Luftansaugrohres (1) gedrückt ist.Device according to claim 4,
characterized in that at least one constricted region (3b, 3b ') is pressed by a stabilizing element (4, 4') onto the outer surface of the air intake pipe (1).
dadurch gekennzeichnet, dass das Stabilisierungselement (4, 4') ein Drahtring ist.Device according to claim 5,
characterized in that the stabilizing element (4, 4 ') is a wire ring.
dadurch gekennzeichnet, dass sich der ausgebuchtete (3a, 3a') und der eingeschnürte Bereich (3b, 3b') radial um das Luftansaugrohr (1) erstrecken.Device according to one of the claims 4 to 6,
characterized in that the bulged (3a, 3a ') and the constricted area (3b, 3b') extend radially around the air intake pipe (1).
dadurch gekennzeichnet, dass einem ausgebuchteten Bereich (3a, 3a') mehrere Öffnungen (2, 2') zugeordnet sind.Device according to one of the claims 4 to 7,
characterized in that a bulged area (3a, 3a ') is assigned several openings (2, 2').
dadurch gekennzeichnet, dass der ausgebuchtete Bereich (3a, 3a') eine Resonatorkammer ist.Device according to one of the claims 4 to 8,
characterized in that the bulged area (3a, 3a ') is a resonator chamber.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE10317224 | 2003-04-15 | ||
| DE2003117224 DE10317224B4 (en) | 2003-04-15 | 2003-04-15 | Device for reducing noise emissions |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP1469186A2 true EP1469186A2 (en) | 2004-10-20 |
| EP1469186A3 EP1469186A3 (en) | 2010-03-31 |
Family
ID=32892352
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP04005095A Withdrawn EP1469186A3 (en) | 2003-04-15 | 2004-03-04 | Device for reducing the noise emissions |
Country Status (2)
| Country | Link |
|---|---|
| EP (1) | EP1469186A3 (en) |
| DE (1) | DE10317224B4 (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1607614A1 (en) * | 2004-06-14 | 2005-12-21 | Veritas Ag | Muffler |
| CN100392233C (en) * | 2006-07-23 | 2008-06-04 | 重庆长安汽车股份有限公司 | Engine air filter inlet pipe structure |
| US7387188B2 (en) * | 2003-09-08 | 2008-06-17 | Veritas Ag | Sound absorber |
| DE102007042869A1 (en) | 2007-09-08 | 2009-03-12 | Volkswagen Ag | Noise emission reduction device for use in vehicle i.e. motor vehicle, has silencer comprising multiple pipeline sections which are spaced at inner wall surface of pipeline or inlet port |
| WO2012052548A3 (en) * | 2010-10-22 | 2012-07-26 | Umfotec Umformtechnik Gmbh | Wide-band damper for charge air lines of an internal combustion engine with turbocharger |
| EP3159528A1 (en) * | 2015-10-23 | 2017-04-26 | Dura Operating, LLC | Resonator assembly and manufacturing process for producing the same |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102007004766A1 (en) | 2007-01-31 | 2008-08-07 | Bayerische Motoren Werke Aktiengesellschaft | Corrugated pipe i.e. charge air pipe, for turbocharger, has medium-prominent pipe arranged in pipe that is made of elastomer or thermoplastic material, and bulging and/or expandable pipe arranged between medium-prominent pipe and pipe |
Citations (8)
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|---|---|---|---|---|
| US1909394A (en) * | 1930-05-31 | 1933-05-16 | Bendix Aviat Corp | Muffler |
| FR1385985A (en) * | 1963-03-15 | 1965-01-15 | Flexible synthetic hose | |
| US4350223A (en) * | 1980-01-16 | 1982-09-21 | Nissan Motor Co., Ltd. | Silencer |
| EP0665404A1 (en) * | 1994-01-28 | 1995-08-02 | Westaflex-Automobile S.A. | A gas transport hose |
| DE19504223A1 (en) * | 1995-02-09 | 1996-08-14 | Volkswagen Ag | Intake silencer for internal combustion engine |
| DE19750102A1 (en) * | 1997-11-12 | 1999-06-02 | Stankiewicz Gmbh | Gas-flowed line with sound absorption effect |
| EP1170499A1 (en) * | 2000-07-03 | 2002-01-09 | Trelleborg Ab | Noise reduction arrangements for air conduits |
| EP1344969A2 (en) * | 2002-03-15 | 2003-09-17 | Smiths Group plc | Ducting |
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| JPS58158312A (en) * | 1982-03-17 | 1983-09-20 | Nissan Motor Co Ltd | Premuffler |
| JPH01197119A (en) * | 1988-02-02 | 1989-08-08 | Daihatsu Motor Co Ltd | Air introducing device in internal combustion engine for vehicle |
| DE4302659C1 (en) * | 1993-01-30 | 1994-04-21 | Daimler Benz Ag | Induction air guide for vehicle combustion engine - has exchangeable, insertable throttle as diffusor forming annular space with guidance channel and held in place by burls |
| DE29600060U1 (en) * | 1996-01-03 | 1996-03-07 | Schmitt Peter | Intake pipe for supercharged and self-priming internal combustion engines |
-
2003
- 2003-04-15 DE DE2003117224 patent/DE10317224B4/en not_active Expired - Fee Related
-
2004
- 2004-03-04 EP EP04005095A patent/EP1469186A3/en not_active Withdrawn
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1909394A (en) * | 1930-05-31 | 1933-05-16 | Bendix Aviat Corp | Muffler |
| FR1385985A (en) * | 1963-03-15 | 1965-01-15 | Flexible synthetic hose | |
| US4350223A (en) * | 1980-01-16 | 1982-09-21 | Nissan Motor Co., Ltd. | Silencer |
| EP0665404A1 (en) * | 1994-01-28 | 1995-08-02 | Westaflex-Automobile S.A. | A gas transport hose |
| DE19504223A1 (en) * | 1995-02-09 | 1996-08-14 | Volkswagen Ag | Intake silencer for internal combustion engine |
| DE19750102A1 (en) * | 1997-11-12 | 1999-06-02 | Stankiewicz Gmbh | Gas-flowed line with sound absorption effect |
| EP1170499A1 (en) * | 2000-07-03 | 2002-01-09 | Trelleborg Ab | Noise reduction arrangements for air conduits |
| EP1344969A2 (en) * | 2002-03-15 | 2003-09-17 | Smiths Group plc | Ducting |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7387188B2 (en) * | 2003-09-08 | 2008-06-17 | Veritas Ag | Sound absorber |
| EP1607614A1 (en) * | 2004-06-14 | 2005-12-21 | Veritas Ag | Muffler |
| US7448469B2 (en) | 2004-06-14 | 2008-11-11 | Veritas Ag | Silencer |
| CN100392233C (en) * | 2006-07-23 | 2008-06-04 | 重庆长安汽车股份有限公司 | Engine air filter inlet pipe structure |
| DE102007042869A1 (en) | 2007-09-08 | 2009-03-12 | Volkswagen Ag | Noise emission reduction device for use in vehicle i.e. motor vehicle, has silencer comprising multiple pipeline sections which are spaced at inner wall surface of pipeline or inlet port |
| WO2012052548A3 (en) * | 2010-10-22 | 2012-07-26 | Umfotec Umformtechnik Gmbh | Wide-band damper for charge air lines of an internal combustion engine with turbocharger |
| US9121374B2 (en) | 2010-10-22 | 2015-09-01 | Umfotec Umformtechnik Gmbh | Wide-band damper for charge air lines of an internal combustion engine with turbocharger |
| EP3159528A1 (en) * | 2015-10-23 | 2017-04-26 | Dura Operating, LLC | Resonator assembly and manufacturing process for producing the same |
| CN106609716A (en) * | 2015-10-23 | 2017-05-03 | 德韧运营公司 | Resonator assembly and manufacturing process for producing the same |
Also Published As
| Publication number | Publication date |
|---|---|
| DE10317224B4 (en) | 2011-11-17 |
| DE10317224A1 (en) | 2004-11-04 |
| EP1469186A3 (en) | 2010-03-31 |
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