EP1433948A2 - Luftansaugdämpfungsanlage - Google Patents

Luftansaugdämpfungsanlage Download PDF

Info

Publication number: EP1433948A2
Authority: EP; European Patent Office
Prior art keywords: duct; chambers; conduit; openings; noise attenuation
Prior art date: 2002-12-23
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

EP03293260A

Other languages

English (en)

French (fr)

Other versions

EP1433948A3 (de

EP1433948B1 (de

Inventor

Jean-Michel Coulon

Laurent Sence

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.)

Trelleborg Fluid and Acoustic Solutions

Renault SAS

Original Assignee

Renault SA

Trelleborg Fluid and Acoustic Solutions

Renault SAS

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.)

2002-12-23

Filing date

2003-12-19

Publication date

2004-06-30

2003-12-19 Application filed by Renault SA, Trelleborg Fluid and Acoustic Solutions, Renault SAS filed Critical Renault SA

2004-06-30 Publication of EP1433948A2 publication Critical patent/EP1433948A2/de

2005-05-04 Publication of EP1433948A3 publication Critical patent/EP1433948A3/de

2008-06-11 Application granted granted Critical

2008-06-11 Publication of EP1433948B1 publication Critical patent/EP1433948B1/de

2023-12-19 Anticipated expiration legal-status Critical

Status Expired - Lifetime legal-status Critical Current

Images

Classifications

- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
- F02M35/12—Intake silencers ; Sound modulation, transmission or amplification
- F02M35/1255—Intake silencers ; Sound modulation, transmission or amplification using resonance
- F02M35/1261—Helmholtz resonators
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
- F02M35/12—Intake silencers ; Sound modulation, transmission or amplification
- F02M35/1255—Intake silencers ; Sound modulation, transmission or amplification using resonance
- F02M35/1266—Intake silencers ; Sound modulation, transmission or amplification using resonance comprising multiple chambers or compartments
- 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
- F02M35/1283—Manufacturing or assembly; Connectors; Fixations

Definitions

the present invention relates to a device for attenuation of noise on a air intake circuit for supercharged internal combustion engine, as well as an air intake circuit equipped with such an attenuation device.
the main function of an air intake system of a combustion engine internal, equipped with a turbocharger is to convey to the engine the fresh air coming from the vehicle facade cleaning this air.
these type noises aerodynamics are in a wide band of 500 Hertz at 3000 Hertz. This noise is a component of mouth noise called sighing noise. He is spread upstream of the turbocharger.
To eliminate mouth noises high frequency it is used absorbent and porous materials that are installed in the filter housing and on the duct. However, the performance acoustic of these porous absorbent materials is greatly affected during the time by dust and infiltration of liquids.
attenuation absorption requires a relatively large contact area with air in circulation. This congestion constraint can result in a increase in pressure losses.
noise attenuation devices intended to be positioned on ducts conveying air under pressure, that is to say in downstream of the turbocharger. Noise attenuated by such devices present essentially a high frequency component.
such devices consist of outer circumferential chambers communicating with the conduit through openings as illustrated in particular the patent EP1176355 or the patent DE-A-19943246. In this second document, all the rooms are of the same size and therefore not allow attenuation of noises emitted inside a wide frequency band.
An object of the present invention is therefore to propose an attenuation device noises of the aforementioned type whose design makes it possible to dampen noises of mouth extending within a significant frequency range of 500 Hertz at 3,000 Hertz.
the subject of the invention is a device for attenuating noise on a air intake circuit for a supercharged internal combustion engine, these noises being notably resulting from the operation of the turbocharger, this device in the form of a duct section integrable with the circuit, this duct being equipped with a first group of chambers external circumferences, arranged in parallel around the duct and communicating with the latter through openings arranged in parallel around the duct section to establish a stream communication between ducts and chambers allowing high noise attenuation frequency, characterized in that the conduit, adapted to constitute a section of the turbocharger air intake duct, comprises at least one additional room arranged in series with the first group of rooms, this first group of rooms, intended for noise attenuation high frequency, consisting of chambers extending along the conduit along a substantially axial component relative to the longitudinal axis of the duct, while the additional room or bedrooms, which communicate by at least one opening with the conduit and which are dimensioned by each chamber of the first group so as to
the chambers of the first group which extend along the duct following a component substantially axial with respect to the longitudinal axis of the duct, communicating with the conduit through oblong openings and axial to said conduit .
the or the average noise attenuation chambers frequency which extend essentially transversely to the duct, as for them, in the form of annular or semi chambers ring.
These rooms for attenuation of the medium frequency noise communicate with the conduit via openings, preferably oblong, and transverse to said duct.
rooms intended for the attenuation of high frequency noises are low volume rooms whose axial arrangement and in parallel makes it possible to limit the bulk on the leads.
Another subject of the invention is an air intake circuit for a combustion engine. supercharged internal combustion, said circuit comprising at least one input of air, an air filter and a turbocharger interconnected by a conduit, characterized in that the inlet duct section of the turbocharger, extending upstream of the air filter or respectively downstream of the air filter, is equipped with a noise attenuation device of the aforementioned type.
the noise attenuation device is more particularly intended to be positioned on an air intake circuit for supercharged internal combustion engine.
An example of such a circuit air intake is shown in Figure 1.
such circuits comprise at least one air inlet, an air filter 12 and a turbocharger 11 interconnected by a conduit.
the turbocharger 11 is itself connected output to a motor 10 via a circuit equipped on its way an exchanger 13.
the device which is the subject of the invention, is intended, in particular, to attenuate noise. from the operation of the turbocharger 11. It turns out that these noises generated by the turbocharger are not propagated in the flow direction air. These noises indeed have a tendency to go up towards the mouth of admission. Consequently, the noise attenuation device of the invention is present in the form of a duct capable of constituting a section of the duct of the turbocharger air intake circuit 11. Such a device is therefore positioned upstream of the turbocharger 11, upstream or downstream of the filter 12. In the example shown in FIG. 1, this device for attenuating noise is positioned upstream of the air filter 12.
this noise attenuation device is in the form of a section 1 of duct integrable with the input circuit of the turbocharger 11.
This section 1 conduit has openings 2, 3 communicating with chambers 5, 6 arranged around the duct section to establish a communication of the air flow between duct 1 and chambers 5, 6.
this conduit 1 capable of constituting a section of the conduit of the circuit turbocharger 11, has at least two openings 2, 3 arranged in series along the conduit and communicating each with a room 5, 6 of differentiated orientation. At least one of the openings in the series consists of a plurality of so-called axial openings positioned in circumferentially parallel to said circuit.
Each opening 2 in parallel communicates with a so-called axial chamber 5 so as to attenuate noise emitted at high frequency.
Chambers 5 are called axial because their longitudinal component extends substantially parallel to the axis longitudinal of the duct 1. These chambers 5 can be arranged in parallel around the duct 1 because of their small volume. These 5 axial chambers are arranged in series with at least one chamber 6 transverse to said duct 1.
the duct 1 comprises two chambers 6 transversely arranged axially offset along the duct 1 and in series with the group of rooms 5.
transverse openings 3 open into a chamber 6 preferably annular or semi-annular extending at least partially around said led 1 so as to attenuate noise emitted at medium frequency.
This positioning of openings and chambers both in series and in parallel to said circuit makes it possible to obtain a dimensional relationship between the rooms that can vary inside a wide beach.
the openings 2 axial extending in parallel on the circumference of the conduit are intended to cooperate with low volume chambers arranged side by side and circumferentially around the duct.
This set rooms 5 / apertures 2 allows the attenuation of noise emitted at high frequency, that is to say inside a beach extending beyond 1500 Hertz.
the rooms 5 can have a very low volume and congestion on the duct is reduced.
These sets opening / chambers co-operate with sets made up of openings 3 transverse to the duct, these transverse openings 3 cooperating with chambers 6, said transverse to the duct and preferably annular or semi-annular. Because of their disposition, these rooms can present a large volume. Indeed, this big volume is necessary to attenuate noise emitted at medium frequency, that is to say at within a frequency range between 500 Hertz and 1500 Hertz.
the combining openings and axial chambers with openings and chambers transverse to the longitudinal axis of the duct allows, for a small overall dimensions, to obtain a dimensional relationship between extremely high rooms.
the cooperating transverse chambers 6 with the 3 transverse openings can reach large volumes greater than the volume of each axial chamber arranged in parallel and cooperating with an axial opening.
the volume of each room 6 is five to twelve times that of a room 5.
the section of opening 2 or 3 is greater than one-tenth of the section of the leads 1.
the volume of the chamber 6 for a diameter of the duct between 40 and 60 mm extends between 0.03 and 0.1 l. The combination of these rooms allows to cover a wide range of frequencies.
the shapes and dimensions of the openings as well as the shapes and dimensions of the chambers are adapted to obtain different attenuation effects.
the axial openings 2 cooperate with the axial chambers 5 to obtain noise attenuation on the basis of the quarter-wave principle or to constitute expansion chambers.
the section of the opening 2 substantially corresponds to the section of the chamber 5.
the conduit 1 comprises in addition openings 4 opening into the open air so as to mitigate low frequency noise, that is to say, those produced at a frequency below 500 Hertz.
These openings 4 of the duct 1 opening into the open air are positioned on either side of a series of openings 2, 3 opening into chambers 5, 6.
These openings here consist of simple slots axial, that is to say of longitudinal axis parallel to the longitudinal axis of the duct 1.
These openings 4 have a width of the order of 1% of the perimeter of the leads for example 11.5 to 2.5 mm and a length of the order of the diameter duct is 40 to 60 mm.
the openings 2, 3, 4 of the duct came of manufacture with the conduit, the chambers 5, 6 being constituted from parts 8A, 8B reported around said conduit.
Rooms 5, 6 of the device are thus formed from two half-shells 8A, 8B reported around of said conduit 1.
These half-shells 8A, 8B have an internal profile 9 curve adapted to fit in the manner of a saddle profile duct 1.
the lateral or transverse faces of said shells have this profile curve while the longitudinal faces are touched once positioned on either side of the duct by enclosing the latter.
these half-shells 8A, 8B are maintained on said conduit by connection, in particular by snapping of the half-shells between them.
Rooms 5, 6 are obtained by partitioning half-shells via walls extending substantially parallel to or orthogonal to the longitudinal axis of the duct 1.
5 chambers arranged in parallel are obtained from partitions extending between the transverse walls of the half-shells, perpendicular to the latter, while the rooms 6 intended for cooperate with the transverse openings 3 of said duct are obtained at from partitions extending parallel to the transverse walls of the half-shells.
These half-shells can still be connected to each other by welding and / or gluing.
half-shells can also be maintained assembled to the conduit by connection such as welding or gluing between half-shells and leads.
connection such as welding or gluing between half-shells and leads.
the connection between half-shells and conduit is a non-sealed link.
sealing is not essential.
Such an attenuation device is in fact arranged to be positioned on the turbocharger inlet circuit, upstream of the air filter 12 equipping the turbocharger inlet circuit 11, or downstream of the air filter 12 between filter 12 and turbocharger inlet 11.
the attenuated noise by means of a Such a device may extend within a frequency range extremely important between 500 Hertz and 3000 Hertz.

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Engineering & Computer Science (AREA)
Chemical & Material Sciences (AREA)
Combustion & Propulsion (AREA)
Mechanical Engineering (AREA)
General Engineering & Computer Science (AREA)
Manufacturing & Machinery (AREA)
Supercharger (AREA)
Polysaccharides And Polysaccharide Derivatives (AREA)
Separation By Low-Temperature Treatments (AREA)
Steroid Compounds (AREA)
Exhaust Gas After Treatment (AREA)
Air-Conditioning For Vehicles (AREA)

EP03293260A 2002-12-23 2003-12-19 Luftansaugdämpfungsanlage Expired - Lifetime EP1433948B1 (de)

Applications Claiming Priority (2)

Application Number	Priority Date	Filing Date	Title
FR0216486A FR2849114B1 (fr)	2002-12-23	2002-12-23	Dispositif d'attenuation des bruits sur un circuit d'admission d'air
FR0216486		2002-12-23

Publications (3)

Publication Number	Publication Date
EP1433948A2 true EP1433948A2 (de)	2004-06-30
EP1433948A3 EP1433948A3 (de)	2005-05-04
EP1433948B1 EP1433948B1 (de)	2008-06-11

Family

ID=32406371

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
EP03293260A Expired - Lifetime EP1433948B1 (de)	2002-12-23	2003-12-19	Luftansaugdämpfungsanlage

Country Status (4)

Country	Link
EP (1)	EP1433948B1 (de)
AT (1)	ATE398235T1 (de)
DE (1)	DE60321533D1 (de)
FR (1)	FR2849114B1 (de)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
EP2101057A1 (de) *	2008-03-12	2009-09-16	Hutchinson	Vorrichtung zur Lärmreduzierung für Einspeiseleitung einer Wärmekraftmaschine und Einspeiseleitung, die diese Vorrichtung umfasst
DE102008020721A1 (de) *	2008-04-23	2009-10-29	J. Eberspächer GmbH & Co. KG	Schalldämpferbaugruppe für eine Abgasleitung
WO2012055784A3 (de) *	2010-10-25	2012-07-19	Umfotec Umformtechnik Gmbh	Scheibendämpfer für ladeluftleitungen eines verbrennungsmotors mit turbolader
US20130092472A1 (en) *	2011-10-12	2013-04-18	Ford Global Technologies, Llc	Acoustic attenuator for an engine booster
EP3112658A1 (de) *	2015-07-03	2017-01-04	MANN+HUMMEL GmbH	Schalldämpferanordnung
DE102007058938B4 (de) *	2007-07-30	2021-03-25	Hyundai Motor Co.	Luftreinigungs-Einlasskanal

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
FR2876748B1 (fr) *	2004-10-15	2010-10-08	Trelleborg Fluid Systems Geie	Conduit pour le transport de fluide gazeux et dispositif d'admission d'air comportant un tel conduit

Citations (5)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
FR1217190A (fr) *	1958-12-03	1960-05-02		Dispositif silencieux d'aspiration pour compresseurs et moteurs analogues
US5979598A (en) *	1996-04-22	1999-11-09	Woco Franz-Josef Wolf & Co.	Intake silencer for motor vehicle
DE19855708A1 (de) *	1998-12-03	2000-06-08	Dietrich Denker	Rohrkammerdämpfer
DE19943246A1 (de) *	1999-09-10	2001-03-22	Daimler Chrysler Ag	Schalldämpfer zur Herabminderung der Luftgeräusche im Ansaugstrang von Brennkraftmaschinen
GB2365066A (en) *	2000-07-28	2002-02-13	Draftex Ind Ltd	Noise attenuation arrangements for pressurised-gas conduits

2002
- 2002-12-23 FR FR0216486A patent/FR2849114B1/fr not_active Expired - Fee Related
2003
- 2003-12-19 EP EP03293260A patent/EP1433948B1/de not_active Expired - Lifetime
- 2003-12-19 AT AT03293260T patent/ATE398235T1/de not_active IP Right Cessation
- 2003-12-19 DE DE60321533T patent/DE60321533D1/de not_active Expired - Lifetime

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
FR1217190A (fr) *	1958-12-03	1960-05-02		Dispositif silencieux d'aspiration pour compresseurs et moteurs analogues
US5979598A (en) *	1996-04-22	1999-11-09	Woco Franz-Josef Wolf & Co.	Intake silencer for motor vehicle
DE19855708A1 (de) *	1998-12-03	2000-06-08	Dietrich Denker	Rohrkammerdämpfer
DE19943246A1 (de) *	1999-09-10	2001-03-22	Daimler Chrysler Ag	Schalldämpfer zur Herabminderung der Luftgeräusche im Ansaugstrang von Brennkraftmaschinen
GB2365066A (en) *	2000-07-28	2002-02-13	Draftex Ind Ltd	Noise attenuation arrangements for pressurised-gas conduits

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE102007058938B4 (de) *	2007-07-30	2021-03-25	Hyundai Motor Co.	Luftreinigungs-Einlasskanal
EP2101057A1 (de) *	2008-03-12	2009-09-16	Hutchinson	Vorrichtung zur Lärmreduzierung für Einspeiseleitung einer Wärmekraftmaschine und Einspeiseleitung, die diese Vorrichtung umfasst
FR2928705A1 (fr) *	2008-03-12	2009-09-18	Hutchinson Sa	Dispositif d'attenuation acoustique pour ligne d'admission d'un moteur thermique,et ligne d'admission l'incorporant.
DE102008020721A1 (de) *	2008-04-23	2009-10-29	J. Eberspächer GmbH & Co. KG	Schalldämpferbaugruppe für eine Abgasleitung
WO2012055784A3 (de) *	2010-10-25	2012-07-19	Umfotec Umformtechnik Gmbh	Scheibendämpfer für ladeluftleitungen eines verbrennungsmotors mit turbolader
US20130092472A1 (en) *	2011-10-12	2013-04-18	Ford Global Technologies, Llc	Acoustic attenuator for an engine booster
US9097220B2 (en) *	2011-10-12	2015-08-04	Ford Global Technologies, Llc	Acoustic attenuator for an engine booster
US9951728B2 (en)	2011-10-12	2018-04-24	Ford Global Technologies, Llc	Acoustic attenuator for an engine booster
EP3112658A1 (de) *	2015-07-03	2017-01-04	MANN+HUMMEL GmbH	Schalldämpferanordnung

Also Published As

Publication number	Publication date
FR2849114B1 (fr)	2007-04-13
ATE398235T1 (de)	2008-07-15
EP1433948A3 (de)	2005-05-04
FR2849114A1 (fr)	2004-06-25
DE60321533D1 (de)	2008-07-24
EP1433948B1 (de)	2008-06-11

Publication	Publication Date	Title
EP0057623B1 (de)	1986-07-23	Abgassschalldämpfer einer Wärmekraftmaschine
FR2761404A1 (fr)	1998-10-02	Systeme d'echappement pour vehicule
FR2656038A1 (fr)	1991-06-21	Sortie d'echappement a venturi.
EP1877667A1 (de)	2008-01-16	Vorrichtung zur turboladung eines verbrennungsmotors mit einer pulsationsdämpfungskammer
FR3027067A1 (fr)	2016-04-15	Ensemble de filtre a air avec un resonateur acoustique integre
EP1433948B1 (de)	2008-06-11	Luftansaugdämpfungsanlage
FR2551501A1 (fr)	1985-03-08	Dispositif d'admission pour un moteur automobile a combustion interne
WO2016071623A1 (fr)	2016-05-12	Conduit intégrant un dispositif d'atténuation acoustique
EP1553284B1 (de)	2011-02-16	Luftansaugdämpfungsanlage, insbesondere für aufgeladene Brennkraftmaschinen oder Klimaanlage, und Ansaugkanal mit solch einer Anlage
EP1795733B1 (de)	2010-09-08	Schalldämpfer zur Verringerung von Luftgeräuschen, insbesondre für interne Brennkraftmaschinen
EP2435685B1 (de)	2017-03-29	Fluggasturbine mit schalldämpfer im abgasendstück
EP3303815A1 (de)	2018-04-11	Vorrichtung zur dämpfung von ansauggeräuschen und abgestrahlten geräuschen
FR2928705A1 (fr)	2009-09-18	Dispositif d'attenuation acoustique pour ligne d'admission d'un moteur thermique,et ligne d'admission l'incorporant.
EP3450739B1 (de)	2019-10-02	Filteranordnung
FR2946120A1 (fr)	2010-12-03	Dispositif d'attenuation acoustique pour ligne d'admission d'un moteur thermique,et ligne d'admission l'incorporant.
FR2752272A1 (fr)	1998-02-13	Dispositif d'isolation phonique pour un ventilateur
EP1966478A1 (de)	2008-09-10	Eine geräuschdämpfende vorrichtung und einen motoreinheitsluftkanal, die durch einen rastmechanismus abgedichtet verbunden sind, umfassende anordnung
FR3076318A1 (fr)	2019-07-05	Dispositif de génération de son et système d’échappement de véhicule
FR3092361A1 (fr)	2020-08-07	Résonateur acoustique
FR2875560A1 (fr)	2006-03-24	Ventilateur centrifuge a bruit reduit pour systeme de ventilation d'un vehicule automobile
FR3073251A1 (fr)	2019-05-10	Circuit d'admission d'air pour moteur a allumage commande avec plenum integre a la culasse
FR2894645A1 (fr)	2007-06-15	Conduit de transport de gaz ayant un ecoulement a pression variable avec attenuation acoustique integree
FR2876748A1 (fr)	2006-04-21	Conduit pour le transport de fluide gazeux et dispositif d'admission d'air comportant un tel conduit
FR3106853A1 (fr)	2021-08-06	Dispositif d’echappement comprenant des bossages de maintien d’un boitier de depollution
FR2925611A3 (fr)	2009-06-26	Resonateur acoustique de filtre a air de vehicule automobile

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