EP0837238A3 - Mouldable acoustic devices - Google Patents

Mouldable acoustic devices Download PDF

Info

Publication number
EP0837238A3
EP0837238A3 EP97304416A EP97304416A EP0837238A3 EP 0837238 A3 EP0837238 A3 EP 0837238A3 EP 97304416 A EP97304416 A EP 97304416A EP 97304416 A EP97304416 A EP 97304416A EP 0837238 A3 EP0837238 A3 EP 0837238A3
Authority
EP
European Patent Office
Prior art keywords
acoustic
air filter
mouldable
porous
acoustic devices
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
EP97304416A
Other languages
German (de)
French (fr)
Other versions
EP0837238A2 (en
EP0837238B1 (en
Inventor
Edmond Pol Jean Lepoutre
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.)
Westaflex Tubos Flexiveis Ltda
Original Assignee
Westaflex Tubos Flexiveis Ltda
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
Priority claimed from BR9602968A external-priority patent/BR9602968A/en
Priority claimed from BR9603046A external-priority patent/BR9603046A/en
Application filed by Westaflex Tubos Flexiveis Ltda filed Critical Westaflex Tubos Flexiveis Ltda
Publication of EP0837238A2 publication Critical patent/EP0837238A2/en
Publication of EP0837238A3 publication Critical patent/EP0837238A3/en
Application granted granted Critical
Publication of EP0837238B1 publication Critical patent/EP0837238B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

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
    • F02M35/14—Combined air cleaners and silencers
    • 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
    • F02M35/1216—Flow throttling or guiding by using a plurality of holes, slits, protrusions, perforations, ribs or the like; Surface structures; Turbulence generators
    • 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
    • F02M35/1288—Intake silencers ; Sound modulation, transmission or amplification combined with or integrated into other devices ; Plurality of air intake silencers

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Exhaust Silencers (AREA)
  • Soundproofing, Sound Blocking, And Sound Damping (AREA)
  • Vehicle Interior And Exterior Ornaments, Soundproofing, And Insulation (AREA)

Abstract

Mouldable acoustic devices internally coupled to a vehicle engine's air filter relates to a mouldable acoustic box (5), comprised of a plate of porous acoustic absorbing material or a set of plates of porous acoustic materials, superimposed and glued to each other, having its shape predetermined pursuant to the internal and acoustic characteristics of the conventional air filter to which it will be internally coupled, the device (5) being essentially an acoustic internal lining having the purpose of absorbing acoustic waves generated by inlet noises, that is coupled inside the air filter's upper compartment (1) and/or lower compartment (2), the device (5) being optionally removable f
vrom the relevant compartments.
EP97304416A 1996-06-24 1997-06-24 Mouldable acoustic devices Expired - Lifetime EP0837238B1 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
BR9602968A BR9602968A (en) 1996-06-24 1996-06-24 Moldable and internally attachable acoustic device in vehicle engine air filter
BR9602968 1996-06-24
BR9603046 1996-07-01
BR9603046A BR9603046A (en) 1996-07-01 1996-07-01 Shaped acoustic tubular device and internally attachable to the clean air tube of the vehicle engine intake manifold

Publications (3)

Publication Number Publication Date
EP0837238A2 EP0837238A2 (en) 1998-04-22
EP0837238A3 true EP0837238A3 (en) 1998-10-28
EP0837238B1 EP0837238B1 (en) 2003-06-04

Family

ID=25664774

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97304416A Expired - Lifetime EP0837238B1 (en) 1996-06-24 1997-06-24 Mouldable acoustic devices

Country Status (3)

Country Link
EP (1) EP0837238B1 (en)
DE (1) DE69722555T2 (en)
ES (1) ES2201247T3 (en)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7416580B2 (en) 2001-04-11 2008-08-26 Donaldsom Company, Inc. Filter assemblies and systems for intake air for fuel cells
US6797027B2 (en) 2001-04-11 2004-09-28 Donaldson Company, Inc. Filter assemblies and systems for intake air for fuel cells
US6783881B2 (en) 2001-04-11 2004-08-31 Donaldson Company, Inc. Filter assembly for intake air of fuel cell
US6780534B2 (en) 2001-04-11 2004-08-24 Donaldson Company, Inc. Filter assembly for intake air of fuel cell
US6951697B2 (en) 2001-09-11 2005-10-04 Donaldson Company, Inc. Integrated systems for use with fuel cells, and methods
DE10144972C1 (en) 2001-09-12 2003-05-15 Woco Franz Josef Wolf & Co Gmbh Fluid guidance, in particular in the form of a raw air hose for sucking raw air into an air filter of a motor vehicle
AT506923B1 (en) * 2008-07-21 2010-09-15 Ge Jenbacher Gmbh & Co Ohg AIR FILTER FOR INTERNAL COMBUSTION ENGINE
DE102009037056A1 (en) * 2009-08-13 2011-02-17 Poroson Gmbh Air filter, particularly for intake system of internal combustion engine, comprises housing forming cavity, which has filter material, and sound proofing unit, which has perforated wall
DE102010038634A1 (en) 2010-07-29 2012-02-02 Poroson Gmbh Air filter for suction system of internal combustion engine of vehicle, has sound damping device comprising circumferential wall within which sound damping element is arranged, where sound damping element runs in axis direction of wall
BR102014021034B1 (en) * 2014-08-26 2022-04-26 Westaflex Tubos Flexíveis Ltda. Anti-pollutant porous flexible tube

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6026157A (en) * 1983-07-20 1985-02-09 Nissan Motor Co Ltd Air cleaner for internal-combustion engine
EP0195121A1 (en) * 1985-01-26 1986-09-24 Dr.Ing.h.c. F. Porsche Aktiengesellschaft Method for coating tubes and conduits
JPS62121859A (en) * 1985-11-22 1987-06-03 Yamaha Motor Co Ltd Air cleaner for internal combustion engine
JPS62174560A (en) * 1986-01-27 1987-07-31 Mazda Motor Corp Intake air duct structure for engine
EP0435588A2 (en) * 1989-12-27 1991-07-03 CADILLAC RUBBER & PLASTICS, INC. Air intake duct and method for making same
WO1993019291A1 (en) * 1992-03-14 1993-09-30 Illbruck Gmbh Silencer for a flowing gaseous medium, in particular combustion air in an internal combustion engine

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3429633A1 (en) * 1984-08-11 1986-02-20 Ing. Walter Hengst GmbH & Co KG, 4400 Münster Sound-absorbing air intake filter for an internal combustion engine
DE3707617A1 (en) * 1987-03-10 1988-09-22 Audi Ag Intake pipe for an internal combustion engine

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6026157A (en) * 1983-07-20 1985-02-09 Nissan Motor Co Ltd Air cleaner for internal-combustion engine
EP0195121A1 (en) * 1985-01-26 1986-09-24 Dr.Ing.h.c. F. Porsche Aktiengesellschaft Method for coating tubes and conduits
JPS62121859A (en) * 1985-11-22 1987-06-03 Yamaha Motor Co Ltd Air cleaner for internal combustion engine
JPS62174560A (en) * 1986-01-27 1987-07-31 Mazda Motor Corp Intake air duct structure for engine
EP0435588A2 (en) * 1989-12-27 1991-07-03 CADILLAC RUBBER & PLASTICS, INC. Air intake duct and method for making same
WO1993019291A1 (en) * 1992-03-14 1993-09-30 Illbruck Gmbh Silencer for a flowing gaseous medium, in particular combustion air in an internal combustion engine

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 009, no. 149 (M - 390) 25 June 1985 (1985-06-25) *
PATENT ABSTRACTS OF JAPAN vol. 011, no. 339 (M - 639) 6 November 1987 (1987-11-06) *
PATENT ABSTRACTS OF JAPAN vol. 012, no. 014 (M - 659) 16 January 1988 (1988-01-16) *

Also Published As

Publication number Publication date
ES2201247T3 (en) 2004-03-16
EP0837238A2 (en) 1998-04-22
DE69722555T2 (en) 2004-04-29
DE69722555D1 (en) 2003-07-10
EP0837238B1 (en) 2003-06-04

Similar Documents

Publication Publication Date Title
US5493081A (en) Panel that absorbs acoustic energy at low, medium and high frequencies, particularly at frequencies ranging from 400 Hz to 5,000 Hz
US4782913A (en) Constructional element with acoustic properties
EP0837238A3 (en) Mouldable acoustic devices
EP0373135A3 (en) Headliners having improved sound-absorbing characteristics
FR2387822A1 (en) Sound damper for car engine - consists of porous plate mounted over front axle to cover underside of engine component
JP3730395B2 (en) Sound absorbing material structure and method for manufacturing sound absorbing material
CA2316586A1 (en) Acoustical panel having a calendered, flame-retardant paper backing and method of making the same
WO2002083461A1 (en) Acoustic tile and its use in vehicle sound proofing
EP0765737A4 (en) Sound absorbing component
US5004070A (en) Acoustic board
MXPA05010486A (en) Acoustically effective nonwoven material for vehicle liners.
KR970065332A (en) Sound absorbing and insulating material sheet of car
ES2008790A6 (en) Front-wall lining for automobiles
GB2333078A (en) Low noise wheelpan
JPS6331117Y2 (en)
JPH10282965A (en) Sound absorption device
FR2372325A1 (en) Vehicle IC engine air induction noise damper - has box with sound absorbing interior walls fitted between existing air filter and external intake
PL54271Y1 (en) Sound absorber especially for engine air inlet in engine compartment of the car fiat 126p fl
JPH0220248Y2 (en)
JPS5848853Y2 (en) speaker cabinet
JPS59162351U (en) Automobile silencer
GB1510229A (en) Noise-attenuating engine enclosure
JP2524166B2 (en) Thin film soundproofing material
JPS6330251U (en)
JPH075750Y2 (en) Speaker mounting structure for automobiles

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): BE DE ES FR GB IT

AX Request for extension of the european patent

Free format text: AL;LT;LV;RO;SI

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): AT BE CH DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

AX Request for extension of the european patent

Free format text: AL;LT;LV;RO;SI

17P Request for examination filed

Effective date: 19990428

AKX Designation fees paid

Free format text: BE DE ES FR GB IT

17Q First examination report despatched

Effective date: 20010924

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Designated state(s): BE DE ES FR GB IT

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

REF Corresponds to:

Ref document number: 69722555

Country of ref document: DE

Date of ref document: 20030710

Kind code of ref document: P

REG Reference to a national code

Ref country code: ES

Ref legal event code: FG2A

Ref document number: 2201247

Country of ref document: ES

Kind code of ref document: T3

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

ET Fr: translation filed
26N No opposition filed

Effective date: 20040305

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: BE

Payment date: 20071128

Year of fee payment: 11

BERE Be: lapsed

Owner name: *WESTAFLEX TUBOS FLEXIVEIS LTDA.

Effective date: 20080630

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20080630

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20070624

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

Effective date: 20110228

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20100630

PGRI Patent reinstated in contracting state [announced from national office to epo]

Ref country code: IT

Effective date: 20110616

REG Reference to a national code

Ref country code: FR

Ref legal event code: RN

Effective date: 20120502

REG Reference to a national code

Ref country code: FR

Ref legal event code: FC

Effective date: 20120529

PGRI Patent reinstated in contracting state [announced from national office to epo]

Ref country code: FR

Effective date: 20120605

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 19

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 20

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20160509

Year of fee payment: 20

Ref country code: ES

Payment date: 20160509

Year of fee payment: 20

Ref country code: GB

Payment date: 20160505

Year of fee payment: 20

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: IT

Payment date: 20160510

Year of fee payment: 20

Ref country code: FR

Payment date: 20160505

Year of fee payment: 20

REG Reference to a national code

Ref country code: DE

Ref legal event code: R071

Ref document number: 69722555

Country of ref document: DE

REG Reference to a national code

Ref country code: GB

Ref legal event code: PE20

Expiry date: 20170623

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF EXPIRATION OF PROTECTION

Effective date: 20170623

REG Reference to a national code

Ref country code: ES

Ref legal event code: FD2A

Effective date: 20180508

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: ES

Free format text: LAPSE BECAUSE OF EXPIRATION OF PROTECTION

Effective date: 20170625