EP1365120A1 - Transducteur acoustique pour véhicule à moteur - Google Patents

Transducteur acoustique pour véhicule à moteur Download PDF

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Publication number
EP1365120A1
EP1365120A1 EP03010875A EP03010875A EP1365120A1 EP 1365120 A1 EP1365120 A1 EP 1365120A1 EP 03010875 A EP03010875 A EP 03010875A EP 03010875 A EP03010875 A EP 03010875A EP 1365120 A1 EP1365120 A1 EP 1365120A1
Authority
EP
European Patent Office
Prior art keywords
sound
transducer according
sound transducer
chamber
bellows
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP03010875A
Other languages
German (de)
English (en)
Other versions
EP1365120B1 (fr
Inventor
Andreas Enderich
Lutz Fröhlich
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.)
Mahle Filtersysteme GmbH
Original Assignee
Mahle Filtersysteme 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 Mahle Filtersysteme GmbH filed Critical Mahle Filtersysteme GmbH
Publication of EP1365120A1 publication Critical patent/EP1365120A1/fr
Application granted granted Critical
Publication of EP1365120B1 publication Critical patent/EP1365120B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • F01N13/00—Exhaust or silencing apparatus characterised by constructional features
    • 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
    • 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
    • F02M35/1294—Amplifying, modulating, tuning or transmitting sound, e.g. directing sound to the passenger cabin; Sound modulation
    • 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
    • F02M35/14—Combined air cleaners and silencers
    • 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
    • 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
    • G10K9/00—Devices in which sound is produced by vibrating a diaphragm or analogous element, e.g. fog horns, vehicle hooters or buzzers
    • G10K9/02—Devices in which sound is produced by vibrating a diaphragm or analogous element, e.g. fog horns, vehicle hooters or buzzers driven by gas; e.g. suction operated
    • G10K9/04—Devices in which sound is produced by vibrating a diaphragm or analogous element, e.g. fog horns, vehicle hooters or buzzers driven by gas; e.g. suction operated by compressed gases, e.g. compressed air

Definitions

  • the present invention relates to a sound transducer for a motor vehicle having the features of the preamble of the claim 1.
  • Such a transducer is for example from the DE 199 22 216 A1 and has a hollow transfer body, the at his entrance to the extraction of airborne sound connected to a fresh air line, the fresh air too an internal combustion engine of the vehicle leads.
  • This Transmission body is a modulated airborne sound at one Output of the transmission body to an interior of the vehicle radiated.
  • the decoupled airborne sound has the transfer body a serving as a vibrating body membrane made of plastic or rubber, due to the decoupled airborne sound is excitable to vibrations.
  • the generated vibrating diaphragm the modulated airborne sound and radiates this to the output of the transmission body.
  • Size, texture, mass and texture of the membrane can affect the modulation of the decoupled airborne sound so as to have a desired modulated airborne sound to be able to radiate.
  • a further sound transducer is the initially known type, wherein the transmission body for the extraction of airborne sound with its input to a Exhaust pipe of the internal combustion engine is connected.
  • the modulation of the decoupled airborne sound also occurs here with the help of a membrane that stimulates to vibrate is and at the output of the transmission body modulated Airborne sound, e.g. radiates into an engine compartment.
  • the transfer body must be sealed gas-tight be to exhaust passage in the engine compartment too prevent.
  • the gas-tight closure of the transmission body takes place here again through the membrane, so that on the membrane on the one hand the exhaust pressure prevails, while on the other hand essentially the ambient pressure is applied. Because the exhaust pressure during operation of the internal combustion engine relatively strong Is subject to fluctuations and regularly significantly above the ambient pressure, the above-described Problems also occur here because the membrane due the pressure difference bulges and tense. The accompanying Change in the radiation characteristic is undesirable.
  • the present invention deals with the problem for an acoustic transducer of the type mentioned an improved Specify embodiment, in particular the Dependence of pressure changes at the entrance of the transfer body is reduced.
  • the present invention is based on the general idea Instead of a flexible membrane a rigid or To use stiff vibrating body, with the help of a bracket is held vibratory, this holder against spring force in the vibration direction of the vibrating body is adjustable.
  • this construction is achieved that low - frequency pressure fluctuations in the input area of Transmission body by appropriate relative adjustments the holder together with the vibrating body held by it can be compensated by the holder so far adjusted until the spring force establishes a balance.
  • the low-frequency pressure fluctuations in the respective Sound source usually does not move in one audible frequency spectrum. Accordingly, they can only an adjustment of the relative position of the vibrating body reach, without this for the delivery of an audible sound radiation to stimulate.
  • the decoupled higher-frequency airborne sound the vibrating body after to excite vibrations that cause a radiation of audible, caused modulated airborne sound.
  • the decoupled from Airborne noise at the vibrating body are excitable amplitudes essentially independent of the deflection of the holder, so that the vibration characteristic of the vibrating body essentially independent of the audible frequency range from that at the input side of the transmission body is prevailing pressure.
  • transducer can thus from a fresh air line or from an exhaust pipe one Internal combustion engine independent of pressure fluctuations, the during operation of the internal combustion engine in the fresh air line or occur in the exhaust pipe, airborne sound decoupled and with a substantially constant remaining Modulation behavior of the oscillating body in modulated Airborne sound to be converted.
  • the holder as Corrugated pipe made of metal or as a bellows made of plastic or Be formed rubber, said corrugated pipe or the bellows at one end has the oscillating body and at the other end attached to the transfer body.
  • a corrugated pipe and a Bellows can be made relatively inexpensive and as well be formed so that they act simultaneously as a spring and due to the internal elasticity always a defined Seek to take starting position.
  • the transmission body in a range of relatively low temperatures is connected to the sound wave.
  • the Transfer body to an intake manifold of an internal combustion engine connected.
  • the metal-corrugated tube holder is preferred.
  • the respective, portion of the transmission body connected to the sound source made of metal (hot area) or plastic (cold area) made.
  • the vibrating body is made of a heat-resistant Material, e.g. made of metal, glass or ceramic, made and attached to the metal corrugated pipe.
  • the transmission body can a Have chamber, wherein the vibrating body at the entrance or at the exit of this chamber or between entry and exit is arranged.
  • this chamber is called Resonatorhunt trained to thereby specifically decoupled Airborne sound to excite the oscillating body and / or the to modulate airborne sound emitted by the oscillating body. For example, certain frequencies or frequency bands be amplified while other frequencies or frequency bands to be dampened or suppressed.
  • These Chamber or resonator chamber is different from the adjoining one Section of the transfer body by a Jump in cross section.
  • a first chamber and / or a second chamber may be provided, wherein the Oscillating body separates the two chambers from each other and accordingly at the exit of the first chamber and at the entrance the second chamber is arranged.
  • the transfer body in the region of one chamber and / or in the region of the other chamber having an adjustable portion, wherein by an adjustment of the portion, the volume of one chamber and / or the volume of the other chamber is variable.
  • the resonance behavior of the respective chamber can be adjusted and adapted, for example, to the frequency spectrum of the sound source.
  • This volume adjustment can be carried out, for example, in the installation of the sound transducer according to the invention in the form of a single adjustment.
  • FIG. 1 includes an internal combustion engine 1 of an otherwise not shown Vehicle, in particular a passenger car, a Fresh air line 2, which housed in an engine block 27 Cylinders 3 of the internal combustion engine 1 feeds fresh air.
  • a Fresh air line 2 In the fresh air line 2 is usually a Air filter 4 is arranged, which contains a filter body 5, in the interior of the air filter 4 a clean side 6 of a Raw side 7 separates.
  • An air distributor 8 distributes the supplied Fresh air in front of the engine block 27 to the individual Cylinder 3.
  • an exhaust pipe. 9 connected, which produced in the cylinders 3 Exhaust gases from the internal combustion engine 1 dissipates.
  • the exhaust pipe 9 after the engine block 27 an exhaust manifold 10, which merges the exhaust gases of the cylinder 3.
  • a catalyst 11 is arranged be.
  • the exhaust pipe 9 not shown other components, e.g. an exhaust gas turbocharger and a silencer included.
  • the internal combustion engine forms 1 a sound source, in particular airborne sound generated.
  • airborne sound are under the present Invention understood pressure pulsations, resulting in a gaseous fluid, e.g. Air or exhaust, spread.
  • an inventive device Sound transducer 12 a transmission body 13. With the help of Sound transducer 12 can now on the internal combustion engine 1 airborne sound decoupled, modulated and in or to a Target area are radiated.
  • a destination space can For example, an engine compartment 14 and / or by a End wall 15 from the engine compartment 14 separate interior 16 of the Be a vehicle.
  • Fig. 1 for decoupling the airborne sound of Internal combustion engine 1, an input 17 of the transmission body 13 at a suitable location with the internal combustion engine. 1 be communicatively connected.
  • Fig. 1 are exemplified several different connection points shown, the distinguishable by the letters a to g are. Accordingly, it is possible in particular, the Sound transducer 12 to the fresh air line 2 or to the exhaust pipe 9 connect. Appropriately, the connection is made each relatively close to the engine to damping effects, for example to avoid the catalyst 11 or the filter element 5.
  • the transfer body has 13 an output 18, the modulated airborne sound to the interior 16 radiates out.
  • the output 18 is here as Schallabichtertrichter designed to a purposeful To improve sound radiation.
  • the output 18 can - as shown - in front of the end wall 15, ie within the engine compartment 14 may be arranged. Likewise it is possible the exit 18 directly on the end wall 15 or in the end wall 15th to install.
  • the transfer body 13 also penetrate the end wall 15, so that the output 18th already in the target area, that is arranged in the interior 16.
  • a vibrating body 19 is formed relatively stiff or rigid.
  • the vibrating body 19 consists of the vibrating body 19 to a corresponding stiff or rigid material.
  • the vibrating body 19 by constructive measures have the desired stiffness or strength.
  • the vibrating body 19 is formed as a circular disk.
  • the vibrating body 19 by means of a holder 20 vibrationally supported on the transfer body 13.
  • the holder 20 is designed so that they for the oscillating body 19 translational, bidirectional Vibrational movements enabled by a double arrow indicated direction of vibration 21 parallel to a indicated by an arrow sound propagation direction 22 of the incoming sound and parallel to one, also indicated by an arrow sound propagation direction 23 of the outgoing sound passes.
  • a conventional flexurally soft membrane when swinging accordingly buckles its excitation
  • the vibration behavior takes place in accordance with the invention swinging suspended bending stiff Vibrating body 19 according to another principle.
  • the Oscillator 19 bulges or bends when swinging substantially not, but moves completely accordingly the oscillation frequency parallel to the initial position, what through the oscillatory mount 20 is made possible.
  • the holder 20 is here as a bellows 24 or as a corrugated pipe 25 trained. While a corrugated tube 25 in the rule Made of metal, the bellows is made of rubber or out Made of plastic. The waves or folds of the bellows 24 and the corrugated pipe 25 cause the bellows 24 or the corrugated tube 25 behaves like a spring. Of the Bellows 24 and the corrugated tube 25 is on the one hand, e.g. above a ring 26, attached to the transfer body 13 and carries on the other hand, the vibrating body 19th
  • the holder 20 of the oscillating body 19 in or on the transfer body 13 against spring force in parallel arranged adjustable to the vibration direction 21.
  • the adjustability as well as the spring force arise during training the holder 20 as a corrugated pipe 25 and bellows 24 by itself.
  • the transmission body 13 is sealed gas-tight, so that in particular no clean air or exhaust gas can escape through the outlet 18.
  • a communicating connection between output 18 and input 17 would destroy, for example, the pressure conditions desired in the fresh air line 2 or in the exhaust line 9.
  • the sealing of the transmission body 13 is carried out so that the oscillating body 19 on the one hand, the output side gas pressure p 0 and on the other hand, the input side gas pressure p 1 according to FIG. 2 or p 3 according to FIG. While the output-side pressure p 0 generally corresponds to the atmospheric ambient pressure and accordingly is essentially contant, the input-side pressure p 1 or p 2 depends on the respective operating state of the internal combustion engine 1.
  • FIGS. 2 and 3 two different pressure situations are shown in FIGS. 2 and 3, wherein the inlet-side gas pressure p 1 shown in FIG. 2 is greater than the gas pressure p 2 shown in FIG. 2, with different axial lengths of the bellows 24 and of the corrugated tube 25 goes along.
  • the holder 20 Due to the adjustability of the holder 20 according to the invention can this adapt to the prevailing pressure conditions, so that the bellows 24 and the corrugated tube 25 at Condition according to FIG. 2 expands in the direction of vibration 21 and compressed in the pressure situation in Fig. 3.
  • the Design of the holder 20 takes place so that through the different length the vibration behavior of the vibrating body 19 is not or only slightly affected. This has the consequence that the vibration excitation of the vibrating body 19 by the application of decoupled airborne sound essentially independent of the vibrating body 19 applied pressure differences is.
  • the of the oscillating body 19 generated vibration amplitudes are therefore substantially regardless of the system pressures. This is achieved for example, by a linear or quasi-linear spring constant in the bellows 24 and in the corrugated pipe 25th
  • the vibrating body 19 made of a heat-resistant material, e.g. from sheet metal, and is the metal corrugated pipe 25, for example soldered.
  • the ring 26 and the associated, to the entrance 17 leading portion of the transfer body 13 is then expediently also made of metal.
  • the portion of the transmission body containing the output 18 13 be made of plastic, since this Section not directly exposed to the hot exhaust gases is.
  • FIGS. 2 and 3 has the transfer body 13 between input 17 and outlet 18 a first chamber 28 and a second chamber 29.
  • the first chamber 28 is via a first line section 30 connected to the input 17, wherein in one Transition from this first line section 30 to the first Chamber 28 formed a jump-like cross-sectional widening 31 is.
  • the second chamber 29 via a second line section 32 of the transmission body 13 connected to the output 18, wherein the second chamber 29 via a sudden cross-section decrease 33 in the second line section 32 passes.
  • first pipe section 30 form as ⁇ / 2 resonator, where ⁇ is the wavelength of a preferred frequency is.
  • the bellows 24 and the corrugated tube 25 is cylindrical and coaxially aligned with the respective chamber 28,29.
  • the two Line sections 30 and 32 are coaxial and aligned with the Bellows 24 and aligned to the corrugated pipe 25.
  • the vibrating body 19 is on the one hand am Exit the first chamber 28 and on the other hand at the entrance the second chamber 29 is arranged.
  • the first chamber 28 can together with the integrated vibrating body 19 an assembly form in their interior with hot gases, e.g. with combustion exhaust gases can be acted upon.
  • the bellows 24 and the vibrating body 19 formed as a one-piece or one-piece integral component 34 be, for example, by a blow molding process can be produced.
  • a corresponding adapted Shape of the bellows 24 may be the integral component 34 can also be realized as a cast component.
  • the spring elasticity the bellows 24 and the rigidity of the vibrating body 19 can be achieved by the selected material thicknesses and / or by the geometric shape of the respective Reach section in the integral component 24.
  • the integral body 34 is at the free end of its bellows 24 at 37 connected to the ring 26, e.g. through a bond.
  • the desired suspension properties or rigidities also determined by the material selection be, for example, by the vibrating body 19 a relatively rigid plastic is used during the Bellows 24 made of a relatively flexible plastic or made of rubber.
  • bellows 24 and vibrating body 19 can again be formed as a one-piece integral component 34, wherein the shape here is such that the integral component 34 is produced as an injection molded component.
  • the stiffness of the Oscillating body 19 can also be increased as shown in FIG. 6, that the vibrating body 19 by a suitable shaping, e.g. by a circumferential annular collar 35 and by Webs 36, stiffened.
  • Fig. 7 is such a stiffener of the vibrating body 19 shown by way of example.
  • at Fig. 6 is the free end of the bellows 24 at 38 directly connected to the transfer body 13, for example through a bond.
  • the Bellows 24 is substantially conically shaped.
  • the transfer body has 13 in the region of the second chamber 29 a adjustable section 39, which corresponds to a double arrow 40 relative to the other areas of the transmission body 13 positionable in the sound propagation direction 22,23 is.
  • a adjustable section 39 For example, the volume of the second chamber 29 can be varied. On This way, the resonance behavior of the second chamber 29 to a specific target frequency or a specific target frequency band be matched.
  • This voting process can for example, during assembly of the transducer 12 am Vehicle done. Section 39 will be after the vote fixes and retains the once found setting. at the particular embodiments shown in FIGS.
  • a controller can Actuator 41 as a function of the speed and / or the load of the internal combustion engine 1 actuate.
  • section 39 also has the output 18 of the transmission body 13, so that this in the adjustment of section 39 also is moved relative to the bulkhead 15, is the section 39 in the embodiment of FIG. 9 between arranged two stationary sections of the transfer body 13, so that in particular the position of the output 18 is also invariant with an adjustment of the section 39.
  • FIGS. 10 and 11 therefore differentiate Embodiments of this holder 20 shown.
  • the holder 20 may be e.g. through a hollow cylinder 42 may be formed at the at one axial end of the Vibrating body 19 is attached.
  • the hollow cylinder 42 is by means of a suspension 43 connected to the transfer body 13.
  • the hollow cylinder 42 is also outside on a cylindrical Section 44 of the transmission body 13 attached, the dimensions are coordinated with each other are that the hollow cylinder 20 is substantially gas-tight and low-friction telescopic in the direction of vibration 21 is mounted on section 44.
  • the suspension 43 allows on the one hand the required pressure compensation and on the other hand, the translatory oscillatory motion of Vibrating body 19.
  • the hollow cylinder 42 formed as Holder 20 also in a cylindrical portion 45th the transfer body 13 inserted and adjustable in stroke be stored, and here too the dimensions are coordinated so that the hollow cylinder 42nd essentially frictionless and gas-tight in the cylinder section 45 is stored.
  • this suspension for example, by a coil spring may be formed.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Exhaust Silencers (AREA)
EP03010875A 2002-05-15 2003-05-15 Transducteur acoustique pour véhicule à moteur Expired - Lifetime EP1365120B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10221447 2002-05-15
DE10221447A DE10221447A1 (de) 2002-05-15 2002-05-15 Schallwandler für ein Kraftfahrzeug

Publications (2)

Publication Number Publication Date
EP1365120A1 true EP1365120A1 (fr) 2003-11-26
EP1365120B1 EP1365120B1 (fr) 2004-06-16

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP03010875A Expired - Lifetime EP1365120B1 (fr) 2002-05-15 2003-05-15 Transducteur acoustique pour véhicule à moteur

Country Status (2)

Country Link
EP (1) EP1365120B1 (fr)
DE (2) DE10221447A1 (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2103801A3 (fr) * 2008-03-18 2012-11-14 Nissan Motor Co., Ltd. Dispositif de génération de sons d'admission d'air
EP3181887A1 (fr) * 2015-12-18 2017-06-21 MAHLE Filter Systems Japan Corporation Appareil de réduction de son d'admission pour moteur à combustion interne
WO2018086971A1 (fr) * 2016-11-14 2018-05-17 Jaguar Land Rover Limited Système d'échappement de véhicule avec dispositif de transmission sonore
IT201700044358A1 (it) * 2017-04-21 2018-10-21 Ferrari Spa Dispositivo symposer isolante pneumaticamente e permeabile acusticamente per un condotto di trasmissione del rumore di un motore a combustione interna
IT201700044384A1 (it) * 2017-04-21 2018-10-21 Ferrari Spa Veicolo stradale con un motore a combustione interna e provvisto di un dispositivo di trasmissione del rumore di scarico
US20230039045A1 (en) * 2021-08-03 2023-02-09 Mclaren Automotive Limited Sound bypass

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Publication number Priority date Publication date Assignee Title
DE102004000019A1 (de) * 2004-07-21 2006-02-16 Mann + Hummel Gmbh Vorrichtung zur Geräuschübertragung
DE102005006914B4 (de) * 2005-02-16 2008-05-29 Woco Industrietechnik Gmbh Vorrichtung zur Schallkopplung zwischen einem Ansaugtrakt und/oder Motorraum und einem Fahrzeuginnenraum eines Kraftfahrzeuges
DE202008006365U1 (de) * 2008-05-08 2009-09-17 Mann + Hummel Gmbh Vorrichtung zur Geräuschübertragung in einem Kraftfahrzeug
DE102010005067B4 (de) * 2010-01-15 2022-10-20 Dr. Ing. H.C. F. Porsche Aktiengesellschaft Vorrichtung zur Geräuschübertragung
DE102012109668A1 (de) 2012-10-11 2014-04-17 Dr. Ing. H.C. F. Porsche Aktiengesellschaft Vorrichtung zur Geräuschübertragung bei einem Kraftfahrzeug
DE102015106000A1 (de) 2015-04-20 2016-10-20 Dr. Ing. H.C. F. Porsche Aktiengesellschaft Schallgenerator für ein Kraftfahrzeug
DE102018106429A1 (de) * 2018-03-20 2019-09-26 Eberspächer Exhaust Technology GmbH & Co. KG Verfahren zur Herstellung eines Schalldämpfers

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DE1052169B (de) * 1954-04-20 1959-03-05 Sigismond Wilman Ansauggeraeuschdaempfer
WO2001016477A1 (fr) * 1999-08-27 2001-03-08 Filterwerk Mann + Hummel Gmbh Filtre a air
EP1111228A2 (fr) * 1999-12-24 2001-06-27 MAHLE Filtersysteme GmbH Filtre en particulier filtre d'admission

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DE4435296C2 (de) * 1994-10-01 2002-04-25 Bayerische Motoren Werke Ag Kraftfahrzeug mit einer Brennkraftmaschine
DE19704376A1 (de) * 1997-02-06 1998-08-13 Knecht Filterwerke Gmbh Luftfilteranordnung
DE10015697C1 (de) * 2000-03-29 2001-12-20 Wolf Woco & Co Franz J Schallwandler für Abgaspulsationen

Patent Citations (3)

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Publication number Priority date Publication date Assignee Title
DE1052169B (de) * 1954-04-20 1959-03-05 Sigismond Wilman Ansauggeraeuschdaempfer
WO2001016477A1 (fr) * 1999-08-27 2001-03-08 Filterwerk Mann + Hummel Gmbh Filtre a air
EP1111228A2 (fr) * 1999-12-24 2001-06-27 MAHLE Filtersysteme GmbH Filtre en particulier filtre d'admission

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2103801A3 (fr) * 2008-03-18 2012-11-14 Nissan Motor Co., Ltd. Dispositif de génération de sons d'admission d'air
EP3181887A1 (fr) * 2015-12-18 2017-06-21 MAHLE Filter Systems Japan Corporation Appareil de réduction de son d'admission pour moteur à combustion interne
US10100793B2 (en) 2015-12-18 2018-10-16 Mahle Filter Systems Japan Corporation Intake sound reduction device for internal combustion engine
WO2018086971A1 (fr) * 2016-11-14 2018-05-17 Jaguar Land Rover Limited Système d'échappement de véhicule avec dispositif de transmission sonore
GB2556046A (en) * 2016-11-14 2018-05-23 Jaguar Land Rover Ltd Vehicle exhaust system with sound transmission device
GB2556046B (en) * 2016-11-14 2019-12-18 Jaguar Land Rover Ltd Vehicle exhaust system with sound transmission device
IT201700044358A1 (it) * 2017-04-21 2018-10-21 Ferrari Spa Dispositivo symposer isolante pneumaticamente e permeabile acusticamente per un condotto di trasmissione del rumore di un motore a combustione interna
IT201700044384A1 (it) * 2017-04-21 2018-10-21 Ferrari Spa Veicolo stradale con un motore a combustione interna e provvisto di un dispositivo di trasmissione del rumore di scarico
EP3392498A1 (fr) 2017-04-21 2018-10-24 FERRARI S.p.A. Dispositif symposer pneumatiquement isolant et perméable acoustiquement pour un conduit de transmission de bruit d'un moteur à combustion interne
EP3392479A1 (fr) 2017-04-21 2018-10-24 FERRARI S.p.A. Véhicule routier à moteur à? combustion interne et pourvu d'un dispositif de transmission du bruit d'?échappement
US20230039045A1 (en) * 2021-08-03 2023-02-09 Mclaren Automotive Limited Sound bypass
US12170078B2 (en) * 2021-08-03 2024-12-17 Mclaren Automotive Limited Sound bypass

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EP1365120B1 (fr) 2004-06-16
DE50300024D1 (de) 2004-07-22
DE10221447A1 (de) 2003-11-27

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