EP1741091B1 - Dispositif de couplage sonore entre une conduite d'admission et / ou un compartiment-moteur et l'habitacle d'un vehicule a moteur - Google Patents

Dispositif de couplage sonore entre une conduite d'admission et / ou un compartiment-moteur et l'habitacle d'un vehicule a moteur Download PDF

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Publication number
EP1741091B1
EP1741091B1 EP06705960A EP06705960A EP1741091B1 EP 1741091 B1 EP1741091 B1 EP 1741091B1 EP 06705960 A EP06705960 A EP 06705960A EP 06705960 A EP06705960 A EP 06705960A EP 1741091 B1 EP1741091 B1 EP 1741091B1
Authority
EP
European Patent Office
Prior art keywords
housing
sound
transmission
wall
line
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.)
Not-in-force
Application number
EP06705960A
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German (de)
English (en)
Other versions
EP1741091A1 (fr
Inventor
Anton Wolf
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.)
Woco Industrietechnik GmbH
Original Assignee
Woco Industrietechnik 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 Woco Industrietechnik GmbH filed Critical Woco Industrietechnik GmbH
Publication of EP1741091A1 publication Critical patent/EP1741091A1/fr
Application granted granted Critical
Publication of EP1741091B1 publication Critical patent/EP1741091B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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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 sound coupling between on the one hand an intake tract and / or engine compartment and on the other hand a vehicle interior of a motor vehicle. It can be arranged either in the flow path of uncompressed or compressed intake air. Such devices are already in use for sound modulation.
  • a cross-sectional enlargement must be present within a sound path between the intake of an internal combustion engine of a motor vehicle and an interior of the motor vehicle, which leads to the formation of a resonator, so that absorbed by resonance within a desired frequency band sound energy from the intake and through the resonator via a as a vibrating body functioning membrane can be fed to the vehicle interior.
  • a similar device for noise in a motor vehicle is in the DE 100 42 012 B4 described.
  • a hollow body is used, which is divided by at least one oscillatable membrane in at least two rooms.
  • This membrane fulfills two functions, on the one hand a suppression of a flow in the hollow body and on the other hand a control of a frequency range and an amplification of transmitted noise.
  • transducer for Abgaspulsationen is characterized in that it is formed in the form of an impedance converter which radiates by coupling to the pulsations of an exhaust gas flow using a membrane in the interior of a motor vehicle engine-dependent sound. In this case, resonance characteristics are again used to adjust the radiated airborne sound.
  • the EP 1 365 120 B1 discloses a sound transducer in which the radiated sound is to be adjusted substantially independently of pressure changes at the entrance of a transmission body by using a rigid or rigid vibration body, which is held by means of a holder oscillatory, said support against spring force in the direction of vibration of the Oscillating body is adjustable.
  • a further device for transmitting engine noise which consists of a housing in which a partition wall is arranged, which is broken by a flap element.
  • the DE 101 49 169 C1 relates to a Schallwandlerkopf which is designed so that on the one hand in particular exhaust gas pulsations of an internal combustion engine of a motor vehicle are converted into vibrations in a substantially closed space and on the other hand a functionality is ensured even at, for example, static pressures of 0.5 to 1 bar by an excitation membrane either is coupled with a Schallabstrahlungsmembran or a structure-borne noise with pressure compensation.
  • Another device for sound design in a motor vehicle is from the DE 102 23 873 A1 known, in which a sound transmission device with at least two oscillatory elements, between which an acoustically inactive wall is arranged and which are coupled via a passing through this wall connecting element, is used.
  • Object of the present invention is therefore to provide a device for sound coupling between on the one hand an intake and / or engine compartment and on the other hand, a vehicle interior of a motor vehicle, which is not only inexpensive and easy to produce, but also durable.
  • the positioning device is on the one hand in operative connection with the partition and on the other hand with the housing.
  • At least the region of the dividing wall to which the positioning device engages is reinforced or formed thicker.
  • an outer tube comprising the housing and the second conduit is provided.
  • the inner tube can be stiff or rigid.
  • the inner tube is at least partially inserted into the outer tube so that the positioning device is arranged substantially within the housing.
  • the inner tube has at least one opening, preferably a multiplicity of openings, in the region of the positioning device and in the region of the transmission wall.
  • the invention further proposes that the first line, the housing, the second line and / or the outer tube comprise or comprise aluminum or plastic, and / or the inner tube comprises aluminum, plastic or foam, wherein in particular the inner tube in the area the positioning device comprises foam.
  • the dividing wall and / or the transfer wall comprise or comprise an elastomer or plastic film or a fabric membrane.
  • the transmission wall is gas-tight.
  • the amount of ⁇ is a maximum of 10 °.
  • the transfer body is cup-shaped, in particular in the form of a flowerpot.
  • the transfer body has a connected to the transmission wall or formed with the same edge which engages the housing, preferably between the housing and the first line is clamped.
  • edge of the transfer body is clamped between an integrally formed on the inner tube flange and thus, in particular releasably connected flange of the outer tube.
  • the invention also proposes that the acoustic transfer function can be set via the effective surface and / or at least one material property of the transfer wall and / or the opening (s) in the inner tube.
  • the stiffness, the modulus of elasticity, at least one damping characteristic and / or the mass of the transmission wall can be varied as an adjustable material property.
  • the housing can be arranged or arranged in the flow path of uncompressed or compressed intake air of the motor vehicle.
  • the invention is thus based on the surprising finding that in a motor vehicle between an engine compartment and a vehicle interior or between an intake tract of an internal combustion engine and the vehicle interior by utilizing uncompressed or compressed intake air to be transmitted sound not necessarily a change in cross section and a membrane disposed substantially perpendicular to the flow direction must happen, but a transmission wall can be used, which is just not substantially perpendicular to the flow or longitudinal axis of sound propagation from the intake or engine compartment to the vehicle interior and also does not fulfill the function of pressure equalization so that it can be arbitrarily thin to optimally transmit sound 1: 1.
  • a transfer body is used, for example, in the form of a flower pot, the side wall of which represents said transfer wall, while its bottom represents a gas-tight partition wall and fulfills the function of pressure equalization.
  • the transfer body can be mounted pointing away with its partition to the vehicle interior and away from the latter.
  • the transfer function of the transfer body can be set primarily via the effective surface of the transfer wall and / or material properties thereof.
  • the effective surface is the vibratory surface of the transmission wall, which can be adjusted by targeted fixing of certain surface areas. Suitable material properties are not only the mass of the transmission wall, but also their rigidity, their modulus of elasticity and / or their damping characteristics.
  • the transfer wall according to the invention is mounted with the partition, which is arranged for example substantially perpendicular to the longitudinal axis of sound propagation from the intake or engine compartment to the vehicle interior, in a housing, that the partition substantially does not contribute to the sound coupling.
  • the partition wall is held for this purpose by means of a positioning device, so that it remains in a specific position during operation of the device according to the invention, not only substantially independent of the attacking gas pressure, but also over the entire lifetime of the device, so in particular a possible Settling behavior of the material of the transfer body is substantially compensated.
  • the positioning device is realized, for example, in the form of a spiral spring holding the transfer body under tension in the housing or as a perforated or rigid, ie non-oscillatable supporting body, perforated in the region of the transfer wall.
  • the effective surface of the transfer wall can be adjusted via the holes or openings of the support body.
  • the housing is in turn provided by an outer tube, while the positioning device as a support body is part of an inner tube inserted therein at least in regions.
  • the partition wall is formed with the transmission wall in preferred embodiments of the invention in one, for example, an elastomer or plastic film or a fabric membrane, wherein the partition wall may have a relation to the transmission wall increased material thickness.
  • a long-lasting device of the same kind for sound coupling between an intake tract or engine compartment and a vehicle interior of a motor vehicle is provided, which can be produced in a cost-effective and simple manner.
  • a sound coupling device 1 is arranged with its housing 2 between on the one hand a line 3 from an engine compartment, not shown, and on the other hand, a line 4 to a vehicle interior of a motor vehicle, not shown).
  • the housing 2 is substantially tubular, with a longitudinal axis which coincides substantially with the longitudinal axis 5 of a sound entry into the housing 2 and the longitudinal axis 6 of a sound outlet from the housing 2.
  • the conduit 3 is part of an inner tube 8
  • the housing 2 and the other conduit 4 are part of an outer tube 9, wherein the inner tube 8 is partially inserted into the outer tube 9, concentric therewith, such that a Pipe edge 8a of the inner tube 8 abuts an expansion 9a of the outer tube 9.
  • the outer tube 9 is formed somewhat wider than in the region of the conduit 4, so that a step 9b is provided between the housing 2 and the conduit 4.
  • a transfer body 10 is provided for example of an elastomeric foil in the form of a flowerpot.
  • This transfer body 10 in turn comprises a gas-tight partition wall 11 (bottom of the flowerpot) substantially perpendicular to said longitudinal axes 5, 6 and a transfer wall 12 (side wall of the flower pot) extending from the partition wall 11 to the area of sound entry into the housing 2.
  • the transmission wall 12 has a smaller thickness than the partition wall 11.
  • the transmission wall 12 is arranged at an acute angle ⁇ with an amount of approximately 5 ° to said longitudinal axes 5, 6.
  • the same is held by a tension spring 13 in position.
  • the tension spring 13, which is thus a positioning device is clamped for this purpose between the line 3 and the inner tube 8, more precisely in the region of a step 8b of the inner tube 8, and the partition wall 11, wherein in the region of engagement of the tension spring 13 at the partition wall 11, the partition wall 11 is material reinforced.
  • the transfer body 10 still comprises a rim 14 at the open end of the transfer wall 12, with which the transfer body 10 is clamped between the conduit 3 from the engine compartment or the tube edge 8a of the inner tube 8 and the housing 2 or the widening 9a of the outer tube 9 ,
  • the transmission wall 12 thus fulfills only the function of sound transmission and can be formed arbitrarily thin for this purpose to optimally transmit sound 1: 1.
  • a modulation of the sound is possible in a simple manner in that the effective surface of the transmission wall 12 and / or material properties thereof are varied.
  • the material properties of the transfer wall 12 can be set particularly easily over the mass thereof.
  • the stiffness, the modulus of elasticity or an attenuation characteristic can be adjusted, all sizes are of course anisotropically adjustable.
  • the transmitted and / or modulated sound then leaves the sound coupling device 1 along the arrow 6 in FIG. 1 ,
  • the sound coupling device 1 thus basically comes without cross-sectional enlargement in a line system from an engine compartment to a vehicle interior and without the use of a membrane, which is at the same time oscillating body and pressure compensator from. Due to the separation of functions of pressure compensation and sound transmission, an accurate adjustability of the sound to be radiated into the vehicle compartment over the entire service life of the sound coupling device 1 is also made possible in a simple manner.
  • a sound coupling device 1 ' according to the invention is shown in FIG FIG. 2 shown and includes as well as the sound coupling device 1, a housing 2 'between a first conduit 3' from the engine compartment and a second conduit 4 'to the vehicle interior.
  • the first line 3 ' in the form of an inner tube 8' in the housing 2 'hineinverinrt to position a transfer body 10' within the housing 2 ', ie to provide a positioning device 13' in the form of a rigid or rigid support body.
  • the inner tube 8 ' can be made of a plastic, which in the region of the transfer body 10' a plurality of openings 8'c radially to the longitudinal axis 5 'of the sound entry into the housing 2' and to the longitudinal axis 6 'of the sound outlet from the housing 2'. exhibit.
  • the transfer body 10 ' rests against the inner tube 8', wherein in the region of a partition wall 11 'of the transfer body 10' no opening in the inner tube 8 'is provided, in contrast to the region of the inner tube 8', in which the transfer wall 12th 'applies, so that via the openings 8'c the effective surface of the transmission wall 12' and thus the sound coupling with its longitudinal axis 7 'in the region of each opening 8'c is adjustable.
  • the transfer body 10 ' may consist overall of a tissue membrane which is clamped between a first flange 8'a on the inner tube 8' and a second flange 9'a of an outer tube 9, the outer tube 9 'the housing 2' as well also the second line 4 ', wherein between the housing 2' and the second line 4 ', a step 9'b is arranged.
  • a fastening member such as a screw (not shown), guided for fixing.
  • the sound coupling device 1 has the same functions as the sound coupling devices 1, but with a simpler and less expensive structure.

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  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Exhaust Silencers (AREA)
  • Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)
  • Fittings On The Vehicle Exterior For Carrying Loads, And Devices For Holding Or Mounting Articles (AREA)

Claims (17)

  1. Dispositif (1') de couplage sonore entre une conduite d'admission et/ou un compartiment moteur d'une part et un habitacle de véhicule à moteur d'autre part, comportant une première conduite (3'), une seconde conduite (4') et un carter (2'), dans lequel pénètre le bruit en provenance de la conduite d'admission et/ou du compartiment moteur par l'intermédiaire de la première conduite (3') et hors duquel un bruit dans l'habitacle du véhicule sort par l'intermédiaire d'une seconde conduite (4'), et comportant un corps de transmission (10') pour le bruit qui est agencé de telle manière à l'intérieur du carter (2') que le bruit pénètre par l'intermédiaire de la première conduite (3') dans le corps de transmission (10') ou bute contre le corps de transmission (10') et qui présente une paroi de séparation étanche aux gaz (11') entre l'entrée de bruit (5') dans le carter (2') et la sortie de bruit (6') hors du carter (2') dont la position dans le carter (2') est maintenue essentiellement constante grâce à un dispositif de positionnement (13'), et comporte également une paroi de transfert (12') entre la paroi de séparation (11') et le carter (2'), par l'intermédiaire de laquelle la fonction de transmission acoustique du corps de transmission (10') vers le couplage sonore (7') est réglable, la paroi de transfert (12') étant reliée ou formée avec la paroi de séparation (11'), la paroi de séparation (11') s'étendant, au moins par secteur, essentiellement verticalement par rapport à l'axe longitudinal (5', 6') de propagation du son au niveau de l'entrée et/ou de la sortie du carter (2'), la paroi de transmission (12') s'étendant, au moins par secteur, à un angle α par rapport à l'axe longitudinal (5', 6') de propagation du son au niveau de l'entrée et/ou de la sortie du carter (2'), caractérisé en ce que la valeur α est au maximum de 30°, une tuyauterie extérieure (9') englobe le carter (2') et la seconde conduite (4'), et une tuyauterie intérieure (8') englobe la première conduite (3') et le dispositif de positionnement (13').
  2. Dispositif selon la revendication 1, caractérisé en ce que
    le dispositif de positionnement (13') est placé en liaison fonctionnelle avec la paroi de séparation (11') d'une part et avec le carter (2') d'autre part.
  3. Dispositif selon la revendication 2, caractérisé en ce que
    au moins le secteur de la paroi de séparation (11') sur lequel le dispositif de positionnement (13') prend appui est formé de manière renforcée ou plus épaisse.
  4. Dispositif selon l'une quelconque des revendications précédentes, caractérisé en ce que
    la tuyauterie intérieure (8') est raide ou rigide.
  5. Dispositif selon l'une quelconque des revendications précédentes, caractérisé en ce que
    la tuyauterie intérieure (8') est, au moins par secteur, agencée de telle manière dans la tuyauterie extérieure (9') que le dispositif de positionnement (13') est agencé essentiellement à l'intérieur du carter (2').
  6. Dispositif selon la revendication 5, caractérisé en ce que
    la tuyauterie intérieure (8') dans le secteur du dispositif de positionnement (13') ainsi que dans le secteur de la paroi de transfert (12') présente au moins une ouverture (8'c), de préférence une pluralité d'ouvertures (8'c).
  7. Dispositif selon l'une quelconque des revendications précédentes, caractérisé en ce que
    la première conduite (3'), le carter (2'), la seconde conduite (4') et/ou la tuyauterie extérieure (9') comportent de l'aluminium ou une matière plastique, et/ou la tuyauterie intérieure (8') comporte de l'aluminium, une matière plastique ou de la mousse, la tuyauterie intérieure (8') comportant en particulier de la mousse dans le secteur du dispositif de positionnement (13').
  8. Dispositif selon l'une quelconque des revendications précédentes, caractérisé en ce que
    la paroi de séparation (11') et/ou la paroi de transfert (12') comporte(nt) un film en élastomère ou en matière plastique, ou bien une membrane textile.
  9. Dispositif selon l'une quelconque des revendications précédentes, caractérisé en ce que
    la paroi de transfert (12') est étanche aux gaz.
  10. Dispositif selon l'une quelconque des revendications précédentes, caractérisé en ce que
    la valeur α est au maximum de 10°.
  11. Dispositif selon l'une quelconque des revendications précédentes, caractérisé en ce que
    le corps de transmission (10') est réalisé en forme de pot, en particulier en forme de pot de fleurs.
  12. Dispositif selon l'une quelconque des revendications précédentes, caractérisé en ce que
    le corps de transmission (10') présente un bord (14') relié à la paroi de transfert (12') ou bien formé avec celle-ci, prenant appui sur le carter (2, 2'), de préférence calé entre le carter (2') et la première conduite (3').
  13. Dispositif selon la revendication 12, caractérisé en ce que
    le bord (14') du corps de transmission (10') est calé entre une bride (8'a), formée sur la tuyauterie intérieure (8'), et une bride (9'a), reliée avec celle-ci, en particulier détachable, de la tuyauterie extérieure (9').
  14. Dispositif selon l'une quelconque des revendications précédentes, caractérisé en ce que
    la fonction de transmission acoustique est réglable par l'intermédiaire de la surface effective et/ou au moins d'une propriété matérielle de la paroi de transmission (12') et/ou de la ou des ouverture(s) (8'c) dans la tuyauterie intérieure (8').
  15. Dispositif selon la revendication 14, caractérisé en ce que
    la rigidité, le module d'élasticité, au moins une caractéristique d'amortissement et/ou la masse de la paroi de transfert (12') est/sont modulables en tant que propriété(s) matérielle(s) réglable(s).
  16. Dispositif selon la revendication 14 ou 15, caractérisé en ce que le dimensionnement de chaque ouverture (8'c), le nombre d'ouvertures (8'c) et/ou le positionnement de l'ouverture ou des ouverture(s) (8'c) est/sont modulables afin de régler la fonction de transmission.
  17. Dispositif selon l'une quelconque des revendications précédentes, caractérisé en ce que le carter (2, 2') peut être agencé ou est agencé sur le trajet d'écoulement de l'air d'admission comprimé ou non comprimé du véhicule à moteur.
EP06705960A 2005-02-16 2006-02-13 Dispositif de couplage sonore entre une conduite d'admission et / ou un compartiment-moteur et l'habitacle d'un vehicule a moteur Not-in-force EP1741091B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102005006914A DE102005006914B4 (de) 2005-02-16 2005-02-16 Vorrichtung zur Schallkopplung zwischen einem Ansaugtrakt und/oder Motorraum und einem Fahrzeuginnenraum eines Kraftfahrzeuges
PCT/DE2006/000242 WO2006086950A1 (fr) 2005-02-16 2006-02-13 Dispositif de couplage sonore entre une conduite d'admission et / ou un compartiment-moteur et l'habitacle d'un vehicule a moteur

Publications (2)

Publication Number Publication Date
EP1741091A1 EP1741091A1 (fr) 2007-01-10
EP1741091B1 true EP1741091B1 (fr) 2008-10-22

Family

ID=36572034

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06705960A Not-in-force EP1741091B1 (fr) 2005-02-16 2006-02-13 Dispositif de couplage sonore entre une conduite d'admission et / ou un compartiment-moteur et l'habitacle d'un vehicule a moteur

Country Status (5)

Country Link
US (1) US7487857B2 (fr)
EP (1) EP1741091B1 (fr)
AT (1) ATE412234T1 (fr)
DE (2) DE102005006914B4 (fr)
WO (1) WO2006086950A1 (fr)

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US7896128B2 (en) * 2008-09-12 2011-03-01 Theodore De Leo Auto-sensing, automatic adjusting exhaust baffle
US20100139604A1 (en) * 2008-12-09 2010-06-10 Reza Abdolhosseini Inlet mechanism for an air induction system
JP5389477B2 (ja) * 2009-03-05 2014-01-15 株式会社Ｒｏｋｉ 吸気音調整装置
US20100314193A1 (en) * 2009-06-12 2010-12-16 Mann+Hummel Gmbh Membrane stiffening through ribbing for engine sound transmission device
RU2488176C2 (ru) * 2011-09-02 2013-07-20 Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Тольяттинский государственный университет" Акустомеханический преобразователь
JP5956633B1 (ja) * 2015-03-13 2016-07-27 本田技研工業株式会社 車両の吸気音伝達装置
KR102451886B1 (ko) * 2017-10-25 2022-10-06 현대자동차 주식회사 차량용 머플러 밸브 유닛
CN108831428B (zh) * 2018-09-07 2024-01-05 浙江奥派克汽车配件有限公司 一种多音电控气喇叭
KR102554930B1 (ko) * 2018-10-10 2023-07-12 현대자동차주식회사 차량용 배기음 조절 장치

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Also Published As

Publication number Publication date
DE102005006914A1 (de) 2006-08-17
US20080135330A1 (en) 2008-06-12
DE102005006914B4 (de) 2008-05-29
ATE412234T1 (de) 2008-11-15
EP1741091A1 (fr) 2007-01-10
DE502006001870D1 (de) 2008-12-04
US7487857B2 (en) 2009-02-10
WO2006086950A1 (fr) 2006-08-24

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