FR2983919B1 - ACOUSTICAL ATTENUATION DEVICE FOR THE INTAKE LINE OF A THERMAL MOTOR, AND ADMISSION LINE INCORPORATING IT. - Google Patents

ACOUSTICAL ATTENUATION DEVICE FOR THE INTAKE LINE OF A THERMAL MOTOR, AND ADMISSION LINE INCORPORATING IT.

Info

Publication number
FR2983919B1
FR2983919B1 FR1161551A FR1161551A FR2983919B1 FR 2983919 B1 FR2983919 B1 FR 2983919B1 FR 1161551 A FR1161551 A FR 1161551A FR 1161551 A FR1161551 A FR 1161551A FR 2983919 B1 FR2983919 B1 FR 2983919B1
Authority
FR
France
Prior art keywords
integral
interface
line
partitioning portion
attenuation device
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
FR1161551A
Other languages
French (fr)
Other versions
FR2983919A1 (en
Inventor
Alper Caliskan
Michael Lhoste
Antoine Bourdariat
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.)
Hutchinson SA
Original Assignee
Hutchinson SA
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 Hutchinson SA filed Critical Hutchinson SA
Priority to FR1161551A priority Critical patent/FR2983919B1/en
Publication of FR2983919A1 publication Critical patent/FR2983919A1/en
Application granted granted Critical
Publication of FR2983919B1 publication Critical patent/FR2983919B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • F02M35/12—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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
    • F16L55/02—Energy absorbers; Noise absorbers
    • F16L55/033—Noise absorbers
    • F16L55/0335—Noise absorbers by means of external rings
    • 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
    • F02M35/10—Air intakes; Induction systems
    • F02M35/10091—Air intakes; Induction systems characterised by details of intake ducts: shapes; connections; arrangements
    • F02M35/10144—Connections of intake ducts to each other or to another device

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Manufacturing & Machinery (AREA)
  • Exhaust Silencers (AREA)

Abstract

La présente invention concerne un dispositif d'atténuation acoustique pour ligne d'admission d'un moteur thermique, une telle ligne l'incorporant et son utilisation pour procurer une atténuation déterminée. Un dispositif (1) selon l'invention comporte : - une enveloppe tubulaire (2) à deux embouts (3, 4) qui comportent deux tronçons axialement externes (3b, 4b) se prolongeant par des élargissements (3a, 4a) solidaires en une interface annulaire (6), et - une structure de conduite (10) interne comportant : * une portion centrale de cloisonnement (11) qui délimite deux chambres annulaires de résonance (8 et 9) et est solidaire de l'enveloppe en ladite interface, et * deux portions d'extrémité (14 et 15) qui sont solidaires desdits tronçons externes et qui se terminent entre les élargissements et la portion de cloisonnement de sorte à former avec celle-ci deux espaces axiaux (8a et 9a) de communication avec les chambres. Selon l'invention, la portion de cloisonnement (11) de section en « L » est constituée d'un anneau radial (12) et d'un rebord axial (13) externe qui prolonge l'anneau en étant rabattu à angle droit sous ladite interface.The present invention relates to an acoustic attenuation device for the intake line of a heat engine, such a line incorporating it and its use to provide a determined attenuation. A device (1) according to the invention comprises: - a tubular casing (2) with two end pieces (3, 4) which comprise two axially outer sections (3b, 4b) extending by extensions (3a, 4a) integral in one annular interface (6), and - an internal pipe structure (10) comprising: * a central partitioning portion (11) which delimits two annular resonance chambers (8 and 9) and is integral with the casing at said interface, and * two end portions (14 and 15) which are integral with said outer sections and which end between the widenings and the partitioning portion so as to form therewith two axial spaces (8a and 9a) in communication with the bedrooms. According to the invention, the partitioning portion (11) of "L" section consists of a radial ring (12) and an external axial flange (13) which extends the ring by being folded down at right angles under said interface.

FR1161551A 2011-12-13 2011-12-13 ACOUSTICAL ATTENUATION DEVICE FOR THE INTAKE LINE OF A THERMAL MOTOR, AND ADMISSION LINE INCORPORATING IT. Active FR2983919B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR1161551A FR2983919B1 (en) 2011-12-13 2011-12-13 ACOUSTICAL ATTENUATION DEVICE FOR THE INTAKE LINE OF A THERMAL MOTOR, AND ADMISSION LINE INCORPORATING IT.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1161551A FR2983919B1 (en) 2011-12-13 2011-12-13 ACOUSTICAL ATTENUATION DEVICE FOR THE INTAKE LINE OF A THERMAL MOTOR, AND ADMISSION LINE INCORPORATING IT.

Publications (2)

Publication Number Publication Date
FR2983919A1 FR2983919A1 (en) 2013-06-14
FR2983919B1 true FR2983919B1 (en) 2014-01-03

Family

ID=47278215

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1161551A Active FR2983919B1 (en) 2011-12-13 2011-12-13 ACOUSTICAL ATTENUATION DEVICE FOR THE INTAKE LINE OF A THERMAL MOTOR, AND ADMISSION LINE INCORPORATING IT.

Country Status (1)

Country Link
FR (1) FR2983919B1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT514568B1 (en) 2014-03-07 2015-02-15 Henn Gmbh & Co Kg silencer

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59141707A (en) * 1983-02-02 1984-08-14 Sanyo Electric Co Ltd Intake muffler device for compressor
FR2816991B1 (en) * 2000-11-23 2003-01-17 Westaflex Automobile SILENT FORMING DEVICE, ESPECIALLY FOR A TURBO ENGINE
FR2924764A1 (en) * 2007-12-05 2009-06-12 Hutchinson Sa ACOUSTICAL ATTENUATION DEVICE FOR THE INTAKE LINE OF A THERMAL MOTOR, AND ADMISSION LINE INCORPORATING IT

Also Published As

Publication number Publication date
FR2983919A1 (en) 2013-06-14

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