EP2444605B1 - Amortisseur de bruit - Google Patents

Amortisseur de bruit Download PDF

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Publication number
EP2444605B1
EP2444605B1 EP11184661.4A EP11184661A EP2444605B1 EP 2444605 B1 EP2444605 B1 EP 2444605B1 EP 11184661 A EP11184661 A EP 11184661A EP 2444605 B1 EP2444605 B1 EP 2444605B1
Authority
EP
European Patent Office
Prior art keywords
actuator
housing
shell
muffler according
region
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP11184661.4A
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German (de)
English (en)
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EP2444605A1 (fr
Inventor
Mathias Keck
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.)
Eberspaecher Exhaust Technology GmbH and Co KG
Original Assignee
Eberspaecher Exhaust Technology GmbH and Co KG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication of EP2444605A1 publication Critical patent/EP2444605A1/fr
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Publication of EP2444605B1 publication Critical patent/EP2444605B1/fr
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Classifications

    • 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
    • F01N1/06—Silencing apparatus characterised by method of silencing by using interference effect
    • F01N1/065—Silencing apparatus characterised by method of silencing by using interference effect by using an active noise source, e.g. speakers
    • 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
    • F01N1/026—Annular resonance chambers arranged concentrically to an exhaust passage and communicating with it, e.g. via at least one opening in the exhaust passage
    • 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
    • F01N1/16—Silencing apparatus characterised by method of silencing by using movable parts
    • F01N1/22—Silencing apparatus characterised by method of silencing by using movable parts the parts being resilient walls
    • 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

Definitions

  • the present invention relates to a muffler for an exhaust system of an internal combustion engine. Furthermore, the present invention relates to an associated use. Relevant is the silencing of internal combustion engines mainly in mobile applications, e.g. in vehicles, but also in stationary applications, such. in combined heat and power plants.
  • Silencers distinguish between active silencers and passive silencers.
  • Active mufflers have an electro-acoustic transducer, which is usually formed by a loudspeaker and is generated with the counter-sound, which leads to a more or less effective extinction of the sound to be damped with a corresponding phase shift.
  • the acoustic emission can be designed specifically with electroacoustic transducers by emitting certain frequencies more intensively.
  • a sound design can be realized with such an active silencer. It is conceivable, for example, to generate the sound emission of a 6-cylinder gasoline engine in a 4-cylinder diesel engine.
  • Such an electroacoustic transducer usually comprises a vibratable membrane, which can be excited by means of an actuator to vibrate. Furthermore, usually still a cage is provided, which spans the membrane and to which the actuator is attached. With this cage, the transducer or the speaker can be attached to a housing of the muffler.
  • Active mufflers that work with at least one such electro-acoustic transducer, for example, from EP 0 916 817 A2 . US 5,600,106 A . DE 10 2006 042 224 B3 . US 5,619,020 A . EP 1 627 996 A1 and EP 0 483 921 A1 known.
  • the known active mufflers is in common that the converter is in each case mounted on a wall of a housing of the muffler, that its membrane is positioned in an opening of the wall. The actuator then excites the membrane to vibrate upon actuation, generating pressure pulsations in the housing.
  • various and complex measures are proposed in the known active mufflers.
  • a passive silencer works with absorption and / or or reflection and / or resonance.
  • mixed forms can also be realized in which a loudspeaker for active silencing is installed in a passive silencer or in which an active silencer is additionally equipped with resonance and / or absorption and / or reflection spaces.
  • the present invention is concerned with the problem of providing a muffler of the type mentioned an improved embodiment, which is characterized in particular by low production costs and / or by a compact design.
  • the invention is based on the general idea to use a vibratory wall portion of a housing of a muffler as a membrane of an electro-acoustic transducer, which can be excited by means of an actuator to vibrate.
  • By a corresponding control of the actuator pressure pulsations can be introduced into the exhaust gas flow over the wall portion of the housing, for example as counter-vibrations to extinguish the sound to be damped more or less and / or as vibrations to reinforce missing or weak sound.
  • the muffler according to the invention is made without additional membrane, since with the aid of the actuator already on Housing existing wall section is used to generate the pressure pulsations. This reduces the manufacturing costs. It is clear that the coupled with the actuator wall portion can be specifically chosen or designed so that it is particularly suitable for generating pressure pulsations.
  • the wall section can thus be designed to vibrate, z. B. by a relative to the wall of the other housing reduced wall thickness and / or changed material selection.
  • the coupled to the actuator wall portion defines a cavity of the housing to the outside, which is present in addition to a tube assembly in the housing and is connected to this tube assembly at least for airborne sound transmission.
  • the pipe arrangement arranged in the housing serves for the exhaust gas routing and comprises at least one pipe section running within the housing.
  • the exhaust gas flow guided in the pipe arrangement transports airborne sound, which also penetrates into the cavity.
  • a control device for active sound design ie for active sound attenuation and / or active sound generation or sound amplification, can now actuate the actuator so that with the help of the wall section pressure pulsations are introduced into the cavity, which are correspondingly out of phase with the sound to be damped and to Sound attenuation by mutual elimination lead or lead to the desired sound amplification.
  • Mixed forms are also possible, so that first frequencies are attenuated and second frequencies are amplified to achieve the desired sound.
  • the housing of the muffler may have a cylindrical shell and two end floors, wherein the actuator is suitably connected to one of the end floors for introducing vibrations.
  • the housing may be designed in winding construction or in tube construction or shell construction.
  • the end floors In a cylindrical shell, the end floors have a round cross section, so that they are particularly suitable for introducing vibrations.
  • the end floor connected to the actuator may have a smaller wall thickness and / or be made of a different material than the shell and / or as the other end floor. As a result, the vibration ability of the end soil used as a membrane can be improved.
  • the respective end floor with a peripheral bottom edge to equip is attached to the jacket in the region of its bottom edge, the end bottom within its bottom edge a membrane area and a skirt that encloses the membrane region and whose stiffness is greater than the stiffness of the membrane region, wherein the actuator is connected to the membrane region for introducing vibrations.
  • Such an end floor can be particularly easily integrally made of one piece, for. Eg by deep drawing.
  • the housing may be of shell construction and have at least two shells secured to each other, the actuator being connected to one of the shells for inducing vibrations.
  • Such shells are particularly easy to make integral, in one piece, for example by deep drawing. It is particularly advantageous if the respective shell has a peripheral shell edge, wherein the shell is attached to the at least one other shell in the region of its shell edge, wherein the shell has within its shell edge a membrane area and a border which encloses the membrane area and their Stiffness is greater than the stiffness of the membrane area, wherein the actuator is connected to the introduction of vibrations to the membrane area.
  • This measure also leads to an improvement in the membrane property of the wall section coupled to the actuator, which improves the introduction of the desired pressure pulsations into the cavity.
  • the integral design of the respective shell is advantageous since, for example, sealing problems do not occur.
  • an embodiment is advantageous in which the respective wall section has a membrane region, which is connected to the actuator for introducing vibrations, and a skirt, which encloses the membrane region and whose rigidity is greater than the rigidity of the membrane region.
  • Different stiffnesses in the enclosure and in the membrane area can be realized, for example, in that the enclosure has stiffening beads, while the membrane area is free of stiffening beads.
  • the respective wall section has a smaller wall thickness in the membrane area than in the area of the enclosure.
  • at least one stiffening element is attached to the enclosure.
  • the actuator is arranged on the outside of the housing.
  • the actuator is never exposed to the hot exhaust gases, which significantly reduces the thermal load on the actuator. Accordingly, can be dispensed with expensive cooling measures.
  • the active noise control device may also be referred to as ANC control, where ANC stands for Active Noise Control.
  • this control device or the ANC control can control the respective actuator as a function of input signals which are generated by a sensor system for detecting the airborne sound transported in the exhaust gas or that of a control unit for signal transmission connected engine control to operate an internal combustion engine are generated.
  • the control device can on the one hand with a sensor, for.
  • a sensor for.
  • a microphone work together to form a control loop or a regulation.
  • control device can be supplied by a coupling with the engine control with signals that correlate with the noise of the internal combustion engine.
  • the noise of the internal combustion engine Usually there is a close correlation between load and / or speed of the internal combustion engine and the resulting noise. This also makes it possible to construct a control circuit or a control in which the actuation of the actuator correlates only indirectly with the sound to be damped.
  • control device is coupled both with such a sensor as well as with the motor control to operate the respective actuator in a kind of mixed operation with control circuit and control loop.
  • a coarse tuning of the active sound influencing can be achieved in the context of a control, while a fine-tuning of the active sound influencing is realized via a control.
  • the tube assembly may include at least one perforated tube piece disposed in the cavity to facilitate the transmission of airborne sound between the exhaust gas transported in the tube piece and the cavity.
  • the tube arrangement may comprise at least one tube piece which has an inflow opening or an outflow opening in the cavity in order to achieve a sound-transmitting coupling between the tube arrangement and the cavity via the respective opening.
  • the cavity may be formed by an expansion chamber or by a resonance chamber which is acoustically coupled to the tube assembly.
  • the cavity in the housing forms a non-flow area.
  • the respective expansion chamber or resonance chamber is then arranged in the so-called shunt.
  • the cavity in the housing can flow through a region, for. Ex. In the form of a deflection, form.
  • the cavity also includes a flow guiding function.
  • the actuator may be supported on a cage, which in turn is supported on the housing.
  • the cage is supported expediently outside of the wall serving as a membrane wall portion on the housing. If, for example, the wall section serving as a membrane is formed by an end bottom of the housing, the cage is expediently supported on the bottom edge or on the jacket. If the wall section has a membrane area with a border, the cage is expediently supported outside the border.
  • the present invention thus generally also relates to a use of an already existing wall portion of a housing of a Silencer for an exhaust system of an internal combustion engine, in particular of a motor vehicle, as a membrane for an electroacoustic transducer of a device for active sound influencing, ie for active sound generation or sound amplification or for active sound attenuation.
  • the exhaust gas inlet defines an inlet direction for the exhaust gas flow
  • the exhaust gas outlet defines an outlet direction for the exhaust gas flow
  • the exhaust gas inlet and exhaust gas outlet are oriented relative to one another such that the inlet direction and the outlet direction enclose an angle greater than 0 °.
  • the angle can be at least 90 °.
  • the angle between the inlet direction and outlet direction is about 90 ° or about 180 °.
  • Corresponding Fig. 1 includes an internal combustion engine 1, which is preferably arranged in a motor vehicle, an engine block 2, with a plurality of cylinders 3, in which pistons, not shown, are arranged adjustable. Accordingly, this is a piston engine.
  • the internal combustion engine 1 has a fresh air system 4 which supplies fresh air 5 or a fresh air flow 5 to the cylinders 3.
  • an exhaust system 6 is provided, which dissipates exhaust gas 7 or an exhaust gas flow 7 from the cylinders 3.
  • a muffler 8 is arranged, which has an actuator 9. Further, the silencer 9 is associated with a control device 10 which is coupled via a control line 11 to the actuator 9.
  • the control device 10 serves to actuate the actuator 9 Fig. 1 a sensor 12 is shown, which is connected via a signal line 13 to the control device 10.
  • the sensor system 12 can detect the airborne sound transported in the exhaust gas 7 and thus generate correlated signals and supply it to the control device 10.
  • the sensor 12 has at least one Sensor 43, which may be configured for example as a microphone.
  • the sensor 43 is connected downstream of the muffler 8 to the exhaust system 6. It is clear that in principle other positions for the sensor 43 are conceivable, for example, directly on a housing 14 of the muffler 8.
  • the sensor 12 may have a plurality of sensors 43.
  • a motor control 15 which serves for operating the internal combustion engine 1 and is connected via corresponding lines 16 with corresponding components of the internal combustion engine 1.
  • a signal line 17 is provided, which connects the motor control 15 with the control device 10.
  • the control device 10 receives information or signals which correlate with the airborne sound transported in the exhaust gas 7. For example, based on the instantaneous load and / or speed of the internal combustion engine 1, the airborne sound transported in the exhaust gas 7 can be estimated with regard to the frequencies and / or amplitudes.
  • the control device 10 can be designed such that it controls the actuator 9 in response to input signals, which the control device 10 receives from the sensor system 12 and / or from the motor control 15.
  • the silencer 8 has at least one exhaust gas inlet 18 and at least one exhaust gas outlet 19 on its housing 14. Through the exhaust gas inlet 18, the exhaust gas 7 enters the housing 14 and through the exhaust gas outlet 19, the exhaust gas 7 passes out of the housing 14 again.
  • a pipe assembly 20 is further arranged, which serves for the exhaust gas guide and which comprises at least one pipe section 21 which extends within the housing 14.
  • at least one cavity 22 is formed in the housing 14. Said cavity 22 is in addition to the tube assembly 20 in Housing 14 is provided and communicates with the tube assembly 20 at least for airborne sound transmission in connection. Thus, there is an acoustic coupling with respect to airborne sound between cavity 22 and tube assembly 20.
  • at least a portion of the tube assembly 20 extends within the cavity 22nd
  • the muffler 8 also comprises at least one actuator 9, which can be operated, for example, electromagnetically or electrically.
  • the actuator 9 is connected to a wall portion 23 of the housing 14, such that the actuator 9 can excite said wall portion 23 for generating vibrations or pressure pulsations in the cavity 22.
  • said wall section 23 limits the aforementioned cavity 22 to the outside.
  • pressure oscillations, ie pressure pulsations can be generated in the gas volume in the cavity 22. This can be carried out with the aid of the control device 10 in a targeted manner so that an active sound design takes place in which certain frequencies are damped and other specific frequencies are generated or amplified.
  • control device 10 is preferably an ANC control, which will also be referred to below as 10. It is noteworthy that for the realization of the here presented active muffler 8 is not a complete electro-acoustic transducer, in particular speakers, must be installed in the housing 14, but the here presented active muffler 8 without additional membrane, as said wall portion 23 of the housing 14 as a membrane is used, which can be excited by means of the actuator 9 to vibrate.
  • the housing 14 has a cylindrical shell 24 and two end floors 25 which close the cylindrical shell 24 at its longitudinal ends.
  • a housing 14 may be formed in a winding construction, so that the shell 24 is formed by a sheet metal web which is wound in the circumferential direction at least 360 ° to form the shell 24.
  • the housing 14 may be made in a pipe construction, so that the jacket 24 is formed by a tubular body. Both in the winding construction as well as in the tubular construction, the end floors 25 are grown on the jacket 24.
  • the housing 14 may also be designed in shell construction. In this case, the housing 14 has at least two shells 26, of which in Fig. 6 an example is shown. In the shell construction usually no end floors 25 are used.
  • the housing 14 is then assembled from the individual shells 26, for which purpose the individual shells 26 are fastened together.
  • the wall portion 23 is formed on the jacket 24, so that the actuator 9 is mounted on the jacket 14.
  • Fig. 4 an embodiment in which the wall portion 23, with which the actuator 9 is coupled, is formed on one of the end floors 25 or formed by one of the end floors 25.
  • the actuator 9 is arranged on the outside of the housing 14, so that the actuator 9 is not exposed to the hot exhaust gases 7.
  • Fig. 5 shows Fig. 5 an embodiment in which the actuator 9 is arranged inside the housing 14.
  • the pipe section 21 has a perforation 27 which creates an acoustic coupling between the pipe arrangement 20 and the cavity 22.
  • the cavity 22 serves as an expansion chamber.
  • the cavity 22 forms in this case within the housing 14 a non-flow area.
  • the cavity 22 is formed by a resonance chamber, which is acoustically coupled to the tube arrangement 20 via a connecting tube 28. Also in this case, the cavity 22 is not flowed through by the exhaust gas 7.
  • the resonance chamber forms a resonance volume of a Helmholtz resonator whose neck is formed by the connection pipe 28.
  • an absorption chamber 29 is provided, in which an absorption material, a so-called sound-absorbing substance, can be arranged.
  • the pipe section 21 is also equipped with a perforation 27 in the region of the absorption chamber 29 for airborne sound coupling.
  • the housing 14 also contains an absorption chamber 29, which may be filled with absorption material, a deflection chamber 30 and an expansion chamber forming the cavity 22.
  • the individual chambers are separated from each other by partitions 31, which may be perforated.
  • the cavity 22 is provided in a non-flow area of the housing 14. Missing the partition wall 31 between the cavity 22 and the deflection chamber 30, the unified volume forms the deflection chamber 30, in which case the deflection chamber 30 also forms the cavity 22. In this case, the cavity 22 is flowed through.
  • the tube assembly 20 then has a tube piece 21, which in the cavity 22 an inflow 32nd has, and a pipe section 33 which has an outflow opening 34 in the cavity 22.
  • an absorption chamber 29, which may be filled with an absorption material, a deflection chamber 30, the cavity 22 in the form of an expansion chamber and a further expansion chamber 35 or reflection chamber 35 are arranged purely by way of example.
  • the pipe section 21 again has a perforation 27 for the acoustic coupling between pipe assembly 20 and cavity 22.
  • At least the partition wall 31 between the absorption chamber 29 and deflection chamber 30 is perforated.
  • the other partitions 31 may be gas-tight.
  • the actuator 9 may be disposed on one of the shells 26 of the shell-type housing 14.
  • the actuator 9 is connected to the introduction of vibrations with the wall portion 23 of the shell 26.
  • the shell 26 has a peripheral shell rim 36, with which the shell 26 can be attached to another shell of the housing 14.
  • the shell 26 has a membrane region 37 and a skirt 38.
  • the enclosure 38 encloses the membrane area 37, that is, the enclosure 38 encloses the membrane area 37.
  • the rigidity of the membrane region 37 is smaller than the rigidity of the skirt 38.
  • the actuator 9 is now connected to the membrane region 37 for introducing vibrations.
  • the shell 26 equipped with the actuator 9 may have a smaller wall thickness, at least in the membrane area 37, than the at least one further shell of the shell-type housing 14.
  • the actuator 9 is connected to one of the end floors 25 for introducing vibrations.
  • the end floor 25 has a peripheral bottom edge 39 with which the end floor 25 can be secured to the shell 24.
  • the end bottom 25 has a membrane region 37 and a skirt 38, which surrounds the membrane region 37.
  • the rigidity of the enclosure 38 is selected to be greater than the rigidity of the membrane portion 37.
  • the equipped with the actuator 9 end floor 25 may have at least in the membrane portion 37 has a smaller wall thickness than the other end floor 25 and / or as the jacket 24th
  • Fig. 8 now shows a further specific embodiment, in which the actuator 9 is supported on a cage 40.
  • This cage 40 is in turn supported on the housing 14.
  • the cage 40 may, for example, be supported on the jacket 24.
  • the cage 40 defines with the respective wall portion 23 a receiving space 41, in which the actuator 9 is arranged and which is open to an environment 42 of the actuator 9 out.
  • the respective wall section 23 has a membrane region 37, which is connected to the actuator 9 for introducing vibrations, and a skirt 38, which encloses the membrane region 37 and whose rigidity is greater than the rigidity of the membrane region 37.
  • Different stiffnesses in the skirt 38 and in the membrane region 37 can be realized, for example, by the skirt 38 having stiffening beads, not shown, while the membrane portion 37 is free of such stiffening beads.
  • the respective wall section 23 has a smaller wall thickness in the membrane area 37 than in the area of the enclosure 38. Additionally or alternatively, provision may be made for at least one stiffening element (not shown here) to be secured to the enclosure 38.
  • the exhaust gas inlet 18 defines an inlet direction for the exhaust gas flow and the exhaust gas outlet 19 defines an outlet direction for the exhaust gas flow, wherein exhaust gas inlet 18 and exhaust gas outlet 19 in the embodiments of FIGS. 4 and 5 are oriented to each other so that the inlet direction and the exit direction include an angle greater than 0 °.
  • the angle is at least 90 °.
  • the angle between the inlet direction and the outlet direction is according to Fig. 4 about 90 ° and according to Fig. 5 about 180 °.

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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)

Claims (15)

  1. Silencieux destiné à un système d'échappement (6) d'un moteur à combustion interne (1), en particulier d'un véhicule automobile,
    - comprenant un boîtier (14), qui présente au moins une entrée pour gaz d'échappement (18) et au moins une sortie pour gaz d'échappement (19),
    - comprenant un ensemble tubulaire (20) disposé dans le boîtier (14) servant à acheminer les gaz d'échappement, lequel comprend au moins une pièce tubulaire (21) s'étendant à l'intérieur du boîtier (14)
    - comprenant au moins un espace creux (22) réalisé dans le boîtier (14), qui est présent en plus de l'ensemble tubulaire (20) et qui est relié audit ensemble tubulaire au moins aux fins de la transmission du bruit de l'air,
    - comprenant au moins un actionneur (9) servant à produire des pulsations de pression dans l'au moins un espace creux (22),
    - comprenant un système de commande (10) servant à influencer activement le bruit, lequel système de commande est relié à l'au moins un actionneur (9) aux fins de l'actionnement de ce dernier,
    caractérisé en ce
    que l'actionneur (9) est relié à une section de paroi (23), délimitant l'espace creux (22) respectif par rapport à l'extérieur, du boîtier (14) de telle manière que l'actionneur (9) amène, lors de son actionnement, la section de paroi (23) à produire des vibrations, qui produisent dans l'au moins un espace creux (22) les pulsations de pression.
  2. Silencieux selon la revendication 1,
    caractérisé en ce
    que le boîtier (14) présente une enveloppe (24) cylindrique et deux fonds d'extrémité (25), dans lequel l'actionneur (9) est relié à l'un des fonds d'extrémité (25) afin d'introduire des vibrations.
  3. Silencieux selon la revendication 2,
    caractérisé en ce
    que la structure du boîtier (14) est de type enroulement ou tube ou coque.
  4. Silencieux selon la revendication 2 ou 3,
    caractérisé en ce
    que le fond d'extrémité (25) respectif présente un bord de fond (39) périphérique, dans lequel le fond d'extrémité (25) est fixé, dans la zone de son bord de fond (39), au niveau de l'enveloppe (24), dans lequel le fond d'extrémité (25) présente à l'intérieur de son bord de fond (39) une zone de membrane (37) et un encadrement (38), qui encadre la zone de membrane (37) et dont la rigidité est plus importante que la rigidité de la zone de membrane (37), dans lequel l'actionneur (9) est relié à la zone de membrane (37) afin d'introduire des vibrations.
  5. Silencieux selon la revendication 1,
    caractérisé en ce
    - que la structure du boîtier (14) est de type coque et présente au moins deux coques (26), qui sont fixées l'une à l'autre, dans lequel l'actionneur (9) est relié à l'une des coques (26) afin d'introduire des vibrations,
    - que la coque (26) respective présente un bord de coque (36) périphérique, dans lequel la coque (26) est fixée, dans la zone de son bord de coque (36), à l'au moins une autre coque (26), dans lequel la coque (26) présente, à l'intérieur de son bord de coque (36), une zone de membrane (37) et un encadrement (38), qui encadre la zone de membrane (37) et dont la rigidité est plus importante que la rigidité de la zone de membrane (37), dans lequel l'actionneur (9) est relié à la zone de membrane (37) afin d'introduire des vibrations.
  6. Silencieux selon l'une quelconque des revendications 1 à 5,
    caractérisé en ce que la section de paroi (23) respective présente une zone de membrane (37), qui est reliée à l'actionneur (9) afin d'introduire des vibrations, et un encadrement (38), qui encadre la zone de membrane (37) et dont la rigidité est importante que la rigidité de la zone de membrane (37)
  7. Silencieux selon l'une quelconque des revendications 4 à 6,
    caractérisé en ce que l'encadrement (38) présente des moulures de renfort, tandis que la zone de membrane (37) est dépourvue de moulures de renfort.
  8. Silencieux selon l'une quelconque des revendications 4 à 7,
    caractérisé en ce que la section de paroi (23) respective dans la zone de membrane (37) présente une épaisseur plus petite que celle dans la zone de l'encadrement (38).
  9. Silencieux selon l'une quelconque des revendications 4 à 8,
    caractérisé en ce qu'au moins un élément de renfort est fixé au niveau de l'encadrement (38).
  10. Silencieux selon l'une quelconque des revendications 1 à 9,
    caractérisé en ce
    - que l'actionneur (9) est disposé à l'extérieur ou à l'intérieur au niveau du boîtier (14), et/ou
    - que l'actionneur (9) prend appui au niveau d'une cage (40), qui prend à son tour appui au niveau du boîtier (14).
  11. Silencieux selon l'une quelconque des revendications 1 à 10,
    caractérisé en ce
    que le système de commande (10) commande l'actionneur (9) respectif en fonction de signaux d'entrée, qui sont générés par un mécanisme de détection (12), relié au système de commande (10) aux fins de la transmission de signaux, servant à détecter le bruit de l'air transporté dans les gaz d'échappement ou qui sont générés par une commande de moteur (15), reliée au système de commande (10) aux fins de la transmission de signaux, servant à faire fonctionner le moteur à combustion interne (2), dans lequel l'invention peut prévoir en particulier que l'influence active du bruit comprend une atténuation active du bruit et/ou une production active de bruit et/ou une amplification du bruit.
  12. Silencieux selon l'une quelconque des revendications 1 à 11,
    caractérisé en ce
    - que l'ensemble tubulaire (20) présente au moins une pièce tubulaire (21) perforée, qui est disposée dans l'espace creux (22), ou
    - que l'ensemble tubulaire (20) présente au moins une pièce tubulaire (21), qui forme, dans l'espace creux (22), un tube de liaison (28) ou qui présente une ouverture de flux entrant (34) ou une ouverture de flux sortant (32).
  13. Silencieux selon l'une quelconque des revendications 1 à 12,
    caractérisé en ce
    - que l'espace creux (22) est formé par une chambre d'expansion ou par une chambre de résonance, qui est couplée acoustiquement à l'ensemble tubulaire (20), dans lequel l'invention peut prévoir en particulier que l'espace creux (22) forme dans le boîtier (14) une zone qui n'est pas traversé par un flux, et/ou
    - que l'espace creux (22) forme dans le boîtier (14) une zone qui est traversée par un flux, par exemple se présentant sous la forme d'une chambre de déviation (30).
  14. Silencieux selon l'une quelconque des revendications 1 à 13,
    caractérisé en ce
    que l'actionneur (9) prend appui au niveau d'une cage (40), qui prend appui à son tour au niveau du boîtier (14).
  15. Utilisation d'une section de paroi (23) présente de toute façon d'un boîtier (14) d'un silencieux (8) d'un système d'échappement (6) d'un moteur à combustion interne (1), en particulier d'un véhicule automobile, en tant que membrane pour un convertisseur électroacoustique d'un système servant à influencer activement le bruit.
EP11184661.4A 2010-10-20 2011-10-11 Amortisseur de bruit Active EP2444605B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102010042679A DE102010042679A1 (de) 2010-10-20 2010-10-20 Schalldämpfer

Publications (2)

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EP2444605A1 EP2444605A1 (fr) 2012-04-25
EP2444605B1 true EP2444605B1 (fr) 2016-08-31

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US (1) US8434590B2 (fr)
EP (1) EP2444605B1 (fr)
DE (1) DE102010042679A1 (fr)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102011005155A1 (de) * 2011-03-04 2012-09-06 J. Eberspächer GmbH & Co. KG Abgasanlagenkomponente
EP2915967B1 (fr) * 2014-03-04 2017-08-02 Eberspächer Exhaust Technology GmbH & Co. KG Conception active des bruits d'échappement
DE102014222897A1 (de) * 2014-11-10 2016-05-12 Robert Bosch Gmbh Verfahren zum Betreiben einer aktiven Abgasanlage
DE102015211460A1 (de) * 2015-06-22 2016-12-22 Bayerische Motoren Werke Aktiengesellschaft Abgasanlage
CN106368863A (zh) * 2015-07-23 2017-02-01 曼胡默尔有限责任公司 消音器以及包括该消音器的进气系统
DE102015217461A1 (de) * 2015-09-11 2017-03-16 Eberspächer Exhaust Technology GmbH & Co. KG Verbindungsrohr zum Anschließen eines aktiven Schalldämpfers an eine Abgasanlage für eine Brennkraftmaschine
CN106677876A (zh) * 2016-12-05 2017-05-17 柳州金创科技有限责任公司 一种减震汽车尾气利用装置
CN108716427B (zh) * 2018-02-28 2021-01-05 新昌县精锐机械有限公司 用于车辆消声装置的综合测试冷却工作方法
CN108386250A (zh) * 2018-02-28 2018-08-10 成英 用于车辆消声装置的驻波管采集消声谐振工作方法
DE102018107531A1 (de) * 2018-03-29 2019-10-02 Faurecia Emissions Control Technologies, Germany Gmbh Abgasanlage für einen Verbrennungsmotor eines Kraftfahrzeugs
DE102019111270A1 (de) * 2019-05-02 2020-11-05 Eberspächer Exhaust Technology GmbH & Co. KG Abgasschalldämpfer für eine Abgasanlage einer Brennkraftmaschine
CN113593511B (zh) * 2021-07-26 2024-03-26 江苏科技大学 一种双腔耦合赫姆霍兹消声器及控制方法

Family Cites Families (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5257316A (en) * 1990-10-31 1993-10-26 Matsushita Electric Works, Ltd. Acoustic conductance and silencer utilizing same
US5446790A (en) * 1989-11-24 1995-08-29 Nippondenso Co., Ltd. Intake sound control apparatus
US5119902A (en) * 1990-04-25 1992-06-09 Ford Motor Company Active muffler transducer arrangement
US5619020A (en) * 1991-08-29 1997-04-08 Noise Cancellation Technologies, Inc. Muffler
US5550334A (en) * 1991-10-30 1996-08-27 Noise Cancellation Technologies, Inc. Actively sound reduced muffler having a venturi effect configuration
US5336856A (en) * 1992-07-07 1994-08-09 Arvin Industries, Inc. Electronic muffler assembly with exhaust bypass
JPH06323122A (ja) * 1993-05-12 1994-11-22 Aisin Takaoka Ltd 消音装置
US5444197A (en) * 1993-08-09 1995-08-22 Flugger; Ray T. Muffler with intermediate sound-attenuating partition and method
JP2587683Y2 (ja) * 1993-08-12 1998-12-24 カルソニック株式会社 能動型消音器
IT1267402B1 (it) * 1994-02-22 1997-02-05 Electronic Sound Attenuation S Silenziatore attivo per gas di scarico.
DE19751596A1 (de) * 1997-11-21 1999-06-02 Leistritz Abgastech Aktiver Schalldämpfer
EP0916817B1 (fr) * 1997-11-18 2006-02-08 Faurecia Abgastechnik GmbH Silencieux actif
DE20014194U1 (de) * 2000-08-17 2001-12-20 Arvin Exhaust Gmbh Abgasführendes Rohr
DE102004040421A1 (de) * 2004-08-19 2006-03-09 J. Eberspächer GmbH & Co. KG Aktiver Abgasschalldämpfer
DE102005011747B3 (de) * 2005-03-11 2006-06-29 Benteler Automobiltechnik Gmbh Aktiver Abgasschalldämpfer
DE102005019459B3 (de) * 2005-04-25 2006-07-13 Benteler Automobiltechnik Gmbh Aktiver Ansaugschalldämpfer
JP2008031936A (ja) * 2006-07-28 2008-02-14 Toyota Motor Corp スピーカ装置及び騒音抑制装置
DE102006042224B3 (de) * 2006-09-06 2008-01-17 J. Eberspächer GmbH & Co. KG Aktiver Schalldämpfer für eine Abgasanlage
DE102009032553A1 (de) * 2009-07-10 2011-01-20 J. Eberspächer GmbH & Co. KG Abgasanlage und zugehörige Verbindungsanordnung für einen Aktuator

Also Published As

Publication number Publication date
US20120097478A1 (en) 2012-04-26
EP2444605A1 (fr) 2012-04-25
US8434590B2 (en) 2013-05-07
DE102010042679A1 (de) 2012-04-26

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