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EP1306829B1 - Device for transmission of noise from an internal combustion engine - Google Patents

Device for transmission of noise from an internal combustion engine Download PDF

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Publication number
EP1306829B1
EP1306829B1 EP02023771.5A EP02023771A EP1306829B1 EP 1306829 B1 EP1306829 B1 EP 1306829B1 EP 02023771 A EP02023771 A EP 02023771A EP 1306829 B1 EP1306829 B1 EP 1306829B1
Authority
EP
European Patent Office
Prior art keywords
separating wall
housing
flap element
flap
internal combustion
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.)
Expired - Lifetime
Application number
EP02023771.5A
Other languages
German (de)
French (fr)
Other versions
EP1306829A3 (en
EP1306829A2 (en
Inventor
Hermann Maurer
Matthias Alex
Edgar Vogel
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mann and Hummel GmbH
Original Assignee
Mann and Hummel GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Mann and Hummel GmbH filed Critical Mann and Hummel GmbH
Priority to EP02023771.5A priority Critical patent/EP1306829B1/en
Priority to DE2003110487 priority patent/DE10310487A1/en
Publication of EP1306829A2 publication Critical patent/EP1306829A2/en
Publication of EP1306829A3 publication Critical patent/EP1306829A3/en
Application granted granted Critical
Publication of EP1306829B1 publication Critical patent/EP1306829B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • G10K11/18—Methods or devices for transmitting, conducting or directing sound
    • G10K11/22—Methods or devices for transmitting, conducting or directing sound for conducting sound through hollow pipes, e.g. speaking tubes

Definitions

  • the invention relates to a device for noise transmission according to the features of the independent claim 1.
  • a device for noise in the motor vehicle is known.
  • This has a hollow body, which is divided by at least one oscillatable membrane in at least two spaces.
  • One room communicates with a gas-conducting part of an internal combustion engine arranged in the vehicle, and the other room is acoustically coupled to an interior of the vehicle or to the space surrounding the vehicle.
  • a targeted design of the noise can be achieved by dimensioning the diameter of the various openings or membrane.
  • the structure is technically complex and therefore expensive.
  • the invention is based on the object to provide a sound transmission system that is used for noise in a motor vehicle, can be constructed inexpensively and is easily adaptable to different requirements.
  • the main advantage of the invention is that in a closed housing, a partition wall is arranged and this housing is on the one hand with the intake manifold of an internal combustion engine in communication and on the other hand with the interior of a vehicle.
  • the partition is not rigid, but broken by a flap element.
  • This flap element transmits only sound waves, but does not lead to an air balance.
  • the flap element is mounted in such a way that the excitation by the intake sound is transmitted optimally, ie without disturbing background noise or additional noise. In a way, it also acts as a filter to hide certain noise spectra.
  • this housing is, as already mentioned, arranged sealingly on or in the dividing wall.
  • the reliable sealing takes place via suitable sealing lips, on the one hand allow a free movement of the flap, on the other hand cause a gas-tight seal.
  • the flap element may also be spaced from the surrounding housing by a slight gap.
  • this gap is to be chosen so that disturbing influences are avoided by the intake air. Under certain circumstances, to prevent an air exchange in addition to arrange a membrane.
  • a further embodiment of the invention provides to attach the flap element to the partition wall via an axle or a shaft, wherein this flap element can move about a defined pivot point in a narrow angular range.
  • the housing consists of a lower part and an upper part, which are interconnected, wherein the flap element between the lower part and upper part is arranged and has a circumferential membrane. This membrane is clamped between the two housing parts.
  • An embodiment of this described structure with respect to the circumferential membrane provides to provide a profile seal, which has at least two oppositely disposed sealing webs which engage in grooves of the partition and produce a tight connection.
  • FIG. 1 shows a noise transmission system with an intake pipe 10 which is arranged for example between the turbocharger and intake valve of an internal combustion engine.
  • a housing 11 is flanged.
  • This housing is provided with a partition 12, this partition is broken and carries a flap 13.
  • the flap 13 is sealingly inserted at the opening 14 of the partition, for example via one or more sealing lips 15, or via a form-fitting arranged in the partition shaft 16th
  • the flap 13 has a slight gap 17 towards the housing 11, so that a pressure equalization to the suction pressure can take place on the right side of the flap.
  • Below the partition wall 12 is a space 18 which has an outlet 19.
  • This exit is, for example, via a pipe to the side wall of a vehicle, which separates the interior of the engine compartment, led or directly into the interior of the vehicle.
  • the flap 13 is also spaced in the lower chamber 18 of the wall 11 and can thus starting from the pivot point 20 slightly, for example, by 10 degrees, swing shown in phantom.
  • the vibration of the intake air in the intake pipe 10 is transmitted from the movably mounted flap 13 to the space 18 and continued through the outlet 19.
  • FIG. 2 shows a plan view of the flap 13, which is prepared for example by the assembly injection molding process and can be integrated into the housing 11.
  • FIG. 3 shows a noise transmission system with a housing lower part 20 and a housing upper part 21.
  • the two housing parts are connected via fastening elements 22, such as screws, with each other.
  • fastening elements 22 such as screws
  • an inlet 23 is arranged, which is in communication with the intake pipe of an internal combustion engine, not shown here.
  • an outlet 24 is provided, which is in communication with the interior of a motor vehicle.
  • a flap 27 is provided. This has a circumferential sealing lip 28 which is sealingly secured in the connecting region of the two housing halves. This flap can transmit vibrations, it is centrally connected via an oscillating sealing profile 29.
  • FIG. 4 shows the flap 27 with a detailed view.
  • This flap has in the areas in which attachments are provided, holes 30, which are connected to a positive connection in arranging the attachments, which are for example elastomeric parts and in an injection molding with the flap 27.
  • the sealing profile 29 is arranged both above and below the flap and is, as in FIG. 3 can be seen, inserted in each case a groove 31 of the housing part.
  • FIG. 5 shows in a further detailed representation of the flap bearing.
  • the sealing profile 29 extends both into the upper groove 31 and into the lower groove 32 of the two housing parts.
  • the sealing profile is connected as mentioned in the injection molding with the flap 27 and has on both sides of the flap in each case a tapering region 33, 34. This area can be designed so that the flap is suitable for reliably transmitting certain frequencies.
  • the thickness of the sealing profile 29 is, for example, 2 to 3 mm.

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Supercharger (AREA)
  • Sealing With Elastic Sealing Lips (AREA)
  • Sealing Devices (AREA)
  • Vibration Prevention Devices (AREA)
  • General Details Of Gearings (AREA)
  • Control Of Throttle Valves Provided In The Intake System Or In The Exhaust System (AREA)
  • Arrangement Of Transmissions (AREA)

Description

Die Erfindung betrifft eine Vorrichtung zur Geräuschübertragung nach den Merkmalen des unabhängigen Anspruchs 1.The invention relates to a device for noise transmission according to the features of the independent claim 1.

Aus der DE 100 42 012 ist eine Vorrichtung zur Geräuschgestaltung beim Kraftfahrzeug bekannt. Diese weist einen Hohlkörper auf, welche durch wenigstens eine schwingfähige Membran in wenigstens zwei Räume geteilt ist. Ein Raum steht mit einem gasführenden Teil einer in dem Fahrzeug angeordneten Brennkraftmaschine in Verbindung und der andere Raum ist an einen Innenraum des Fahrzeugs bzw. an den das Fahrzeug umgebenden Raum akustisch angekoppelt. Eine gezielte Gestaltung des Geräuschs lässt sich zwar durch die Dimensionierung der Durchmesser der verschiedenen Öffnungen bzw. Membrane erzielen. Der Aufbau ist jedoch fertigungstechnisch aufwendig und damit kostenintensiv.From the DE 100 42 012 a device for noise in the motor vehicle is known. This has a hollow body, which is divided by at least one oscillatable membrane in at least two spaces. One room communicates with a gas-conducting part of an internal combustion engine arranged in the vehicle, and the other room is acoustically coupled to an interior of the vehicle or to the space surrounding the vehicle. Although a targeted design of the noise can be achieved by dimensioning the diameter of the various openings or membrane. However, the structure is technically complex and therefore expensive.

Es ist ferner aus der DE 100 02 984 A1 ein akustischer Absorber und ein Verfahren zur Schallabsorption bekannt. Mit diesem Stand der Technik wird eine Schallpegelminimierung erreicht. Eine definierte und einstellbare Schallübertragung ist bei dem bekannten System nicht möglich.It is also from the DE 100 02 984 A1 an acoustic absorber and a method for sound absorption known. With this state of the art, a sound level minimization is achieved. A defined and adjustable sound transmission is not possible in the known system.

Der Erfindung liegt die Aufgabe zu Grunde, ein Schallübertragungssystem zu schaffen, das zur Geräuschgestaltung bei einem Kraftfahrzeug dient, kostengünstig aufgebaut werden kann und an unterschiedliche Forderungen einfach adaptierbar ist.The invention is based on the object to provide a sound transmission system that is used for noise in a motor vehicle, can be constructed inexpensively and is easily adaptable to different requirements.

Diese Aufgabe wird durch die Merkmale des unabhängigen Anspruchs 1 gelöst.This object is solved by the features of independent claim 1.

Der wesentliche Vorteil der Erfindung liegt darin, dass in einem geschlossenen Gehäuse eine Trennwand angeordnet ist und dieses Gehäuse einerseits mit dem Ansaugrohr einer Brennkraftmaschine in Verbindung steht und andererseits mit dem Innenraum eines Fahrzeugs. Die Trennwand ist jedoch nicht starr, sondern von einem Klappenelement durchbrochen. Dieses Klappenelement überträgt lediglich Schallwellen, führt jedoch nicht zu einem Luftausgleich. Das Klappenelement ist derart gelagert, dass die Anregung durch den Ansaugschall optimal, d. h. ohne störende Nebengeräusche oder Zusatzgeräusche übertragen wird. Es wirkt in gewisser Weise auch als Filter, um bestimmte Geräuschspektren auszublenden.The main advantage of the invention is that in a closed housing, a partition wall is arranged and this housing is on the one hand with the intake manifold of an internal combustion engine in communication and on the other hand with the interior of a vehicle. However, the partition is not rigid, but broken by a flap element. This flap element transmits only sound waves, but does not lead to an air balance. The flap element is mounted in such a way that the excitation by the intake sound is transmitted optimally, ie without disturbing background noise or additional noise. In a way, it also acts as a filter to hide certain noise spectra.

In einer vorteilhaften Ausgestaltung der Erfindung ist vorgesehen, die Verbindung dieses Gehäuses mit dem Ansaugrohr in dem Bereich desselben anzuordnen, welcher sich zwischen Turbolader und Einlassventil der Brennkraftmaschine oder zwischen Kompressor und Einlassventil der Brennkraftmaschine befindet. Das Klappenelement ist, wie bereits erwähnt, dichtend an bzw. in der Trennwand angeordnet. Die zuverlässige Abdichtung erfolgt über geeignete Dichtlippen, die einerseits eine freie Beweglichkeit der Klappe zulassen, andererseits eine gasdichte Abdichtung bewirken.In an advantageous embodiment of the invention, it is provided to arrange the connection of this housing with the intake pipe in the region thereof, which is located between the turbocharger and the intake valve of the internal combustion engine or between the compressor and intake valve of the internal combustion engine. The flap element is, as already mentioned, arranged sealingly on or in the dividing wall. The reliable sealing takes place via suitable sealing lips, on the one hand allow a free movement of the flap, on the other hand cause a gas-tight seal.

Alternativ zu der Abdichtung kann das Klappenelement von dem umgebenden Gehäuse auch durch einen geringfügigen Spalt beabstandet sein. Dieser Spalt ist jedoch so zu wählen, dass störende Einflüsse durch die Ansaugluft vermieden werden. Unter Umständen ist zur Verhinderung eines Luftaustauschs zusätzlich eine Membran anzuordnen.As an alternative to the sealing, the flap element may also be spaced from the surrounding housing by a slight gap. However, this gap is to be chosen so that disturbing influences are avoided by the intake air. Under certain circumstances, to prevent an air exchange in addition to arrange a membrane.

Eine weitere Ausgestaltung der Erfindung sieht vor, das Klappenelement an der Trennwand über eine Achse oder eine Welle zu befestigen, wobei sich dieses Klappenelement um einen definierten Drehpunkt in einem eng begrenzten Winkelbereich bewegen kann.A further embodiment of the invention provides to attach the flap element to the partition wall via an axle or a shaft, wherein this flap element can move about a defined pivot point in a narrow angular range.

Gemäß einer konstruktiv besonders einfachen Ausgestaltung der Erfindung besteht das Gehäuse aus einem Unterteil und einem Oberteil, ,welche miteinander verbunden sind, wobei das Klappenelement zwischen Unterteil und Oberteil angeordnet ist und eine umlaufende Membran aufweist. Diese Membran ist zwischen die beiden Gehäuseteile eingespannt. Dieser Aufbau ist fertigungstechnisch einfach zu realisieren.According to a structurally particularly simple embodiment of the invention, the housing consists of a lower part and an upper part, which are interconnected, wherein the flap element between the lower part and upper part is arranged and has a circumferential membrane. This membrane is clamped between the two housing parts. This structure is easy to implement in terms of manufacturing technology.

Eine Ausgestaltung dieses beschriebenen Aufbaus hinsichtlich der umlaufenden Membran sieht vor, eine Profildichtung vorzusehen, welche wenigstens zwei gegenüberliegend angeordnete Dichtstege aufweist, die in Nuten der Trennwand eingreifen und eine dichte Verbindung herstellen.An embodiment of this described structure with respect to the circumferential membrane provides to provide a profile seal, which has at least two oppositely disposed sealing webs which engage in grooves of the partition and produce a tight connection.

Diese und weitere Merkmale von bevorzugten Weiterbildungen der Erfindung gehen außer aus den Ansprüchen auch aus der Beschreibung und der Zeichnung hervor, wobei die einzelnen Merkmale jeweils für sich allein oder zu mehreren in Form von Unterkombinationen bei der Ausführungsform der Erfindung und auf anderen Gebieten verwirklicht sein und vorteilhafte sowie für sich schutzfähige Ausführungen darstellen können, für die hier Schutz beansprucht wird.These and other features of preferred embodiments of the invention will become apparent from the claims and from the description and drawings, wherein the individual features realized individually or in each case in the form of sub-combinations in the embodiment of the invention and in other fields may be and represent advantageous and protectable versions for which protection is claimed here.

Die Erfindung wird nachfolgend anhand von Ausführungsbeispielen erläutert. Es zeigt

Figur 1
ein Geräuschübertragungssystem in einer Schnittdarstellung,
Figur 2
eine Draufsicht auf eine in Figur 1 gezeigte Klappe,
Figur 3
eine schematische Darstellung eines Geräuschübertragungssystems mit einem zweigeteilten Gehäuse,
Figur 4
die Detailansicht einer Klappe,
Figur 5
eine Schnittdarstellung der Klappenlagerung.
The invention will be explained below with reference to exemplary embodiments. It shows
FIG. 1
a sound transmission system in a sectional view,
FIG. 2
a top view of an in FIG. 1 shown flap,
FIG. 3
a schematic representation of a noise transmission system with a two-part housing,
FIG. 4
the detailed view of a flap,
FIG. 5
a sectional view of the flap bearing.

Beschreibung der AusführungsbeispieleDescription of the embodiments

Die Figur 1 zeigt ein Geräuschübertragungssystem mit einem Ansaugrohr 10 das beispielsweise zwischen Turbolader und Einlassventil einer Brennkraftmaschine angeordnet ist. An dem Ansaugrohr 10 ist ein Gehäuse 11 angeflanscht. Dieses Gehäuse ist mit einer Trennwand 12 versehen, diese Trennwand ist durchbrochen und trägt eine Klappe 13. Die Klappe 13 ist an dem Durchbruch 14 der Trennwand dichtend eingesetzt, beispielsweise über eine oder mehrere Dichtlippen 15, oder über eine formschlüssig in der Trennwand angeordneten Welle 16. Die Klappe 13 weist zu dem Gehäuse 11 hin einen geringfügigen Spalt 17 auf, so dass rechtsseitig der Klappe ein Druckausgleich zu dem Ansaugdruck stattfinden kann. Unterhalb der Trennwand 12 befindet sich ein Raum 18 der einen Austritt 19 aufweist. Dieser Austritt ist beispielsweise über ein Rohr zu der Bordwand eines Fahrzeugs, welche den Innenraum von dem Motorraum trennt, geführt oder unmittelbar in den Innenraum des Fahrzeugs. Die Klappe 13 ist auch in der unteren Kammer 18 von der Wandung 11 beabstandet und kann damit ausgehend von dem Drehpunkt 20 geringfügig, beispielsweise um 10° Grad, schwingen strichpunktiert dargestellt. Die Schwingung der Ansaugluft in dem Ansaugrohr 10 wird von der beweglich gelagerten Klappe 13 auf den Raum 18 übertragen und über den Austritt 19 weitergeführt.The FIG. 1 shows a noise transmission system with an intake pipe 10 which is arranged for example between the turbocharger and intake valve of an internal combustion engine. At the intake pipe 10, a housing 11 is flanged. This housing is provided with a partition 12, this partition is broken and carries a flap 13. The flap 13 is sealingly inserted at the opening 14 of the partition, for example via one or more sealing lips 15, or via a form-fitting arranged in the partition shaft 16th The flap 13 has a slight gap 17 towards the housing 11, so that a pressure equalization to the suction pressure can take place on the right side of the flap. Below the partition wall 12 is a space 18 which has an outlet 19. This exit is, for example, via a pipe to the side wall of a vehicle, which separates the interior of the engine compartment, led or directly into the interior of the vehicle. The flap 13 is also spaced in the lower chamber 18 of the wall 11 and can thus starting from the pivot point 20 slightly, for example, by 10 degrees, swing shown in phantom. The vibration of the intake air in the intake pipe 10 is transmitted from the movably mounted flap 13 to the space 18 and continued through the outlet 19.

Figur 2 zeigt eine Draufsicht auf die Klappe 13, welche beispielsweise im Montagespritzgießverfahren hergestellt ist und in das Gehäuse 11 integriert werden kann. FIG. 2 shows a plan view of the flap 13, which is prepared for example by the assembly injection molding process and can be integrated into the housing 11.

Die Darstellung gemäß Figur 3 zeigt ein Geräuschübertragungssystem mit einem Gehäuseunterteil 20 und einem Gehäuseoberteil 21. Die beiden Gehäuseteile sind über Befestigungselemente 22, wie beispielsweise Schrauben, miteinander verbunden. Selbstverständlich besteht auch die Möglichkeit, die beiden Gehäuseteile miteinander zu verschweißen oder zu verkleben. Im Gehäuseunterteil 20 ist ein Einlass 23 angeordnet, welcher mit dem Ansaugrohr einer hier nicht dargestellten Brennkraftmaschine in Verbindung steht. Im Gehäuseoberteil ist ein Auslass 24 vorgesehen, welcher mit dem Innenraum eines Kraftfahrzeugs in Verbindung ist. In beiden Gehäuseteilen, dies zeigt die Darstellung, befindet sich sowohl eine geräuscheingangsseitige Kammer 25a, 25b, in beiden Gehäuseteilen befindet sich ebenfalls eine geräuschausgangsseitige Kammer 26a, 26b. Zur Trennung dieser Kammern ist eine Klappe 27 vorgesehen. Diese besitzt eine umlaufende Dichtlippe 28, welche abdichtend in dem Verbindungsbereich der beiden Gehäusehälften befestigt ist. Damit diese Klappe Schwingungen übertragen kann, ist sie mittig über ein schwingfähiges Dichtprofil 29 verbunden.The representation according to FIG. 3 shows a noise transmission system with a housing lower part 20 and a housing upper part 21. The two housing parts are connected via fastening elements 22, such as screws, with each other. Of course, it is also possible to weld or glue the two housing parts together. In the lower housing part 20, an inlet 23 is arranged, which is in communication with the intake pipe of an internal combustion engine, not shown here. In the upper housing part, an outlet 24 is provided, which is in communication with the interior of a motor vehicle. In both housing parts, this shows the illustration, there is both a noise input side chamber 25a, 25b, in both housing parts is also a noise output side chamber 26a, 26b. To separate these chambers, a flap 27 is provided. This has a circumferential sealing lip 28 which is sealingly secured in the connecting region of the two housing halves. This flap can transmit vibrations, it is centrally connected via an oscillating sealing profile 29.

Figur 4 zeigt die Klappe 27 mit einer Detaildarstellung. Diese Klappe weist in den Bereichen, in welchen Anbauteile vorgesehen sind, Löcher 30 auf, die zu einer formschlüssigen Verbindung beim Anordnen der Anbauteile, welche beispielsweise Elastomerteile sind und in einem Spritzgießvorgang mit der Klappe 27 verbunden werden. Das Dichtprofil 29 ist sowohl ober- als auch unterseitig der Klappe angeordnet und wird, wie in Figur 3 zu erkennen ist, in jeweils eine Nut 31 des Gehäuseteils eingelegt. FIG. 4 shows the flap 27 with a detailed view. This flap has in the areas in which attachments are provided, holes 30, which are connected to a positive connection in arranging the attachments, which are for example elastomeric parts and in an injection molding with the flap 27. The sealing profile 29 is arranged both above and below the flap and is, as in FIG. 3 can be seen, inserted in each case a groove 31 of the housing part.

Figur 5 zeigt in einer weiteren Detaildarstellung die Klappenlagerung. Das Dichtprofil 29 erstreckt sich sowohl in die obere Nut 31 als auch in die untere Nut 32 der beiden Gehäuseteile. Das Dichtprofil ist wie erwähnt im Spritzgießverfahren mit der Klappe 27 verbunden und weist auf beiden Seiten der Klappe jeweils einen Verjüngungsbereich 33, 34 auf. Dieser Bereich kann so gestaltet werden, dass die Klappe geeignet ist, bestimmte Frequenzen zuverlässig zu übertragen. Im Verjüngungsbereich beträgt die Dicke des Dichtprofils 29 beispielsweise 2 bis 3 mm. Bei einer Anwendung von handelsüblichem Elastomer ist gewährleistet, dass einerseits die Klappe mit einer gewissen Steifigkeit zwischen den beiden Gehäuseteilen 20, 21 gelagert ist, andererseits jedoch die Lagerung flexibel genug ist, um eine optimale Übertragungswirkung zu erzielen. FIG. 5 shows in a further detailed representation of the flap bearing. The sealing profile 29 extends both into the upper groove 31 and into the lower groove 32 of the two housing parts. The sealing profile is connected as mentioned in the injection molding with the flap 27 and has on both sides of the flap in each case a tapering region 33, 34. This area can be designed so that the flap is suitable for reliably transmitting certain frequencies. In the tapering region, the thickness of the sealing profile 29 is, for example, 2 to 3 mm. In an application of commercially available elastomer ensures that on the one hand the flap is mounted with a certain stiffness between the two housing parts 20, 21, on the other hand, however, the storage is flexible enough to achieve an optimal transfer effect.

Claims (7)

  1. Device for noise transmission, consisting of a housing (11, 20, 21) with a separating wall (12) disposed in the housing, comprising a first room defined by the separating wall which is connectable with an intake manifold of an internal combustion engine, and a second room defined by the separating wall which is connectable with a wall or the interior space of a motor vehicle which features the internal combustion engine, the separating wall being penetrated by a flap element (13, 27) for transmitting sound waves, the flap element being sealingly disposed in the separating wall.
  2. Device for noise transmission according to claim 1, characterized in that the first room defined by the separating wall between turbo charger and inlet valve is connectable with an intake manifold of an internal combustion engine.
  3. Device according to claim 1, characterized in that the flap element features one or several sealing lips (15, 28) and that it is sealingly disposed at the separating wall (12).
  4. Device according to claim 1, characterized in that the flap element is spaced from the surrounding housing by a small gap.
  5. Device according to claim 1, characterized in that the flap element features a pivot point at the separating wall and that it moves around this pivot point in an angular range below 10°.
  6. Device according to claim 1, characterized in that the housing consists of a lower part (20) and an upper part (21) which are connected with each other, the flap element (27) being disposed between lower part and upper part and featuring a surrounding membrane which is clamped between both housing parts and supports the flap element.
  7. Device according to claim 6, characterized in that the surrounding membrane features a profile sealing which features at least two opposing sealing webs which engage into grooves of the separating wall and realize a sealing connection.
EP02023771.5A 2001-10-27 2002-10-25 Device for transmission of noise from an internal combustion engine Expired - Lifetime EP1306829B1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP02023771.5A EP1306829B1 (en) 2001-10-27 2002-10-25 Device for transmission of noise from an internal combustion engine
DE2003110487 DE10310487A1 (en) 2001-10-27 2003-03-11 Noise transmission device for automobile with diesel engine or direct injection petrol engine has housing coupled to engine air intake containing throttle element and partition wall incorporating flap element

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10153134 2001-10-27
DE10153143 2001-10-27
EP02023771.5A EP1306829B1 (en) 2001-10-27 2002-10-25 Device for transmission of noise from an internal combustion engine

Publications (3)

Publication Number Publication Date
EP1306829A2 EP1306829A2 (en) 2003-05-02
EP1306829A3 EP1306829A3 (en) 2011-03-02
EP1306829B1 true EP1306829B1 (en) 2014-01-15

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP02023771.5A Expired - Lifetime EP1306829B1 (en) 2001-10-27 2002-10-25 Device for transmission of noise from an internal combustion engine

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EP (1) EP1306829B1 (en)
JP (1) JP4279536B2 (en)
DE (1) DE10310487A1 (en)

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DE202005012038U1 (en) * 2005-07-28 2006-12-14 Mann + Hummel Gmbh Device for noise transmission in vehicle, has gap which is provided between edge of articulated bearing opening and transmission flap whereby gap is closed in pressure tight manner by means of diaphragm
DE202005014862U1 (en) * 2005-09-20 2007-02-01 Mann + Hummel Gmbh Device for transmitting noise in a motor vehicle
DE102006058074A1 (en) * 2006-12-07 2008-06-19 Mahle International Gmbh Fresh gas system for internal combustion engine, especially in motor vehicle, has high pressure side downstream of charger coupled to low pressure side upstream of charger for gas-tight transfer of pressure pulsations in fresh gas
US7845466B2 (en) * 2007-08-28 2010-12-07 Visteon Global Technologies, Inc. Sound generator with structurally and acoustically coupled sound radiation panel and method for manufacturing the same
DE202007015940U1 (en) 2007-11-13 2009-03-19 Mann+Hummel Gmbh Device for transmitting noise in a motor vehicle with internal combustion engine
US7658263B2 (en) * 2008-04-03 2010-02-09 Mann + Hummel Gmbh Device for noise transmission in a motor vehicle
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EP1306829A3 (en) 2011-03-02
DE10310487A1 (en) 2004-09-23
JP4279536B2 (en) 2009-06-17
EP1306829A2 (en) 2003-05-02
JP2003262166A (en) 2003-09-19

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