FR2894645B1 - GAS TRANSPORT DUCT HAVING A VARIABLE PRESSURE FLOW WITH INTEGRATED ACOUSTICAL ATTENUATION - Google Patents

GAS TRANSPORT DUCT HAVING A VARIABLE PRESSURE FLOW WITH INTEGRATED ACOUSTICAL ATTENUATION

Info

Publication number
FR2894645B1
FR2894645B1 FR0512577A FR0512577A FR2894645B1 FR 2894645 B1 FR2894645 B1 FR 2894645B1 FR 0512577 A FR0512577 A FR 0512577A FR 0512577 A FR0512577 A FR 0512577A FR 2894645 B1 FR2894645 B1 FR 2894645B1
Authority
FR
France
Prior art keywords
variable pressure
pressure flow
gas transport
transport duct
acoustical attenuation
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
FR0512577A
Other languages
French (fr)
Other versions
FR2894645A1 (en
Inventor
Jean Paul Dias
Blandine Escarnot
Max Vareon
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.)
Akwel SA
Original Assignee
MGI Coutier 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 MGI Coutier SA filed Critical MGI Coutier SA
Priority to FR0512577A priority Critical patent/FR2894645B1/en
Publication of FR2894645A1 publication Critical patent/FR2894645A1/en
Application granted granted Critical
Publication of FR2894645B1 publication Critical patent/FR2894645B1/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
    • F02M35/1205—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
    • 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
    • F01N1/003—Silencing apparatus characterised by method of silencing by using dead chambers communicating with gas flow passages
    • 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
    • F01N1/02—Silencing apparatus characterised by method of silencing by using resonance
    • 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
    • F01N1/06—Silencing apparatus characterised by method of silencing by using interference effect
    • 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 ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00
    • F01N13/007—Apparatus used as intake or exhaust silencer
    • 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
    • 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
    • F01N2210/00—Combination of methods of silencing
    • F01N2210/02—Resonance and interference

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Exhaust Silencers (AREA)
FR0512577A 2005-12-13 2005-12-13 GAS TRANSPORT DUCT HAVING A VARIABLE PRESSURE FLOW WITH INTEGRATED ACOUSTICAL ATTENUATION Active FR2894645B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR0512577A FR2894645B1 (en) 2005-12-13 2005-12-13 GAS TRANSPORT DUCT HAVING A VARIABLE PRESSURE FLOW WITH INTEGRATED ACOUSTICAL ATTENUATION

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR0512577A FR2894645B1 (en) 2005-12-13 2005-12-13 GAS TRANSPORT DUCT HAVING A VARIABLE PRESSURE FLOW WITH INTEGRATED ACOUSTICAL ATTENUATION

Publications (2)

Publication Number Publication Date
FR2894645A1 FR2894645A1 (en) 2007-06-15
FR2894645B1 true FR2894645B1 (en) 2009-03-20

Family

ID=36480872

Family Applications (1)

Application Number Title Priority Date Filing Date
FR0512577A Active FR2894645B1 (en) 2005-12-13 2005-12-13 GAS TRANSPORT DUCT HAVING A VARIABLE PRESSURE FLOW WITH INTEGRATED ACOUSTICAL ATTENUATION

Country Status (1)

Country Link
FR (1) FR2894645B1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105587373A (en) * 2015-03-31 2016-05-18 徐工集团工程机械股份有限公司 Silencing device and vehicle engine

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3121777B1 (en) * 2021-04-08 2023-10-27 Tallano Tech Noise attenuator generated by a centrifugal pump.

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2075263A (en) * 1931-10-19 1937-03-30 Maxim Silencer Co Sound attenuating device
FR2768961A1 (en) * 1997-09-26 1999-04-02 Hutchinson Blow molded and extruded component
FR2840847B1 (en) * 2002-06-13 2004-10-22 Mark Iv Systemes Moteurs Sa METHOD FOR MANUFACTURING A PIPE PROVIDED WITH AT LEAST ONE ATTENUATOR AND RESULTING PIPE
FR2864199B1 (en) * 2003-12-23 2006-02-24 Mark Iv Systemes Moteurs Sa INTEGRATED ACOUSTICAL ATTENUATOR CONDUIT AND ITS MANUFACTURING METHOD

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105587373A (en) * 2015-03-31 2016-05-18 徐工集团工程机械股份有限公司 Silencing device and vehicle engine
CN105587373B (en) * 2015-03-31 2018-11-23 徐工集团工程机械股份有限公司 A kind of silencing apparatus and vehicle motor

Also Published As

Publication number Publication date
FR2894645A1 (en) 2007-06-15

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Legal Events

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GC Lien (pledge) constituted

Effective date: 20120330

GC Lien (pledge) constituted

Effective date: 20140411

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CD Change of name or company name

Owner name: AKWEL, FR

Effective date: 20191127

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