ATE372447T1 - Schalldämpfer mit verbesserter akustischer leistung bei niedrigen und mittleren frequenzen - Google Patents

Schalldämpfer mit verbesserter akustischer leistung bei niedrigen und mittleren frequenzen

Info

Publication number
ATE372447T1
ATE372447T1 AT04750895T AT04750895T ATE372447T1 AT E372447 T1 ATE372447 T1 AT E372447T1 AT 04750895 T AT04750895 T AT 04750895T AT 04750895 T AT04750895 T AT 04750895T AT E372447 T1 ATE372447 T1 AT E372447T1
Authority
AT
Austria
Prior art keywords
silencer
low
acoustic performance
improved acoustic
medium frequencies
Prior art date
Application number
AT04750895T
Other languages
English (en)
Inventor
Norman Huff
Selamet Ahmet
Lee Iljae
Larry Champney
Original Assignee
Owens Corning Fiberglass Corp
Univ Ohio State Res Found
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 Owens Corning Fiberglass Corp, Univ Ohio State Res Found filed Critical Owens Corning Fiberglass Corp
Application granted granted Critical
Publication of ATE372447T1 publication Critical patent/ATE372447T1/de

Links

Classifications

    • 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
    • F01N1/003—Silencing apparatus characterised by method of silencing by using dead chambers communicating with exhaust gas flow passages
    • F01N1/006—Silencing apparatus characterised by method of silencing by using dead chambers communicating with exhaust gas flow passages comprising at least one perforated tube extending from inlet to outlet of the silencer
    • 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
    • F01N1/023—Helmholtz resonators
    • 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
    • F01N1/04—Silencing apparatus characterised by method of silencing by using resonance having sound-absorbing materials in resonance chambers
    • 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
    • F01N1/24—Silencing apparatus characterised by method of silencing by using sound-absorbing materials
    • 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
    • F01N2310/00—Selection of sound absorbing or insulating material
    • F01N2310/02—Mineral wool, e.g. glass wool, rock wool, asbestos or the like
    • 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
    • F01N2470/00—Structure or shape of exhaust gas passages, pipes or tubes
    • F01N2470/02—Tubes being perforated

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Exhaust Silencers (AREA)
AT04750895T 2003-05-02 2004-04-30 Schalldämpfer mit verbesserter akustischer leistung bei niedrigen und mittleren frequenzen ATE372447T1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US46746803P 2003-05-02 2003-05-02

Publications (1)

Publication Number Publication Date
ATE372447T1 true ATE372447T1 (de) 2007-09-15

Family

ID=33435077

Family Applications (1)

Application Number Title Priority Date Filing Date
AT04750895T ATE372447T1 (de) 2003-05-02 2004-04-30 Schalldämpfer mit verbesserter akustischer leistung bei niedrigen und mittleren frequenzen

Country Status (8)

Country Link
US (1) US7281605B2 (de)
EP (1) EP1633958B1 (de)
JP (1) JP4675887B2 (de)
KR (1) KR20060008972A (de)
AT (1) ATE372447T1 (de)
DE (1) DE602004008774T2 (de)
ES (1) ES2293303T3 (de)
WO (1) WO2004099576A1 (de)

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US7942237B2 (en) * 2006-04-12 2011-05-17 Ocv Intellectual Capital, Llc Long fiber thermoplastic composite muffler system with integrated reflective chamber
US7934580B2 (en) * 2006-04-12 2011-05-03 Ocv Intellectual Capital, Llc Long fiber thermoplastic composite muffler system
US7730996B2 (en) * 2006-04-12 2010-06-08 Ocv Intellectual Capital, Llc Long fiber thermoplastic composite muffler system with integrated crash management
JP2008090931A (ja) * 2006-10-02 2008-04-17 Sony Corp 電子機器及び電子機器の防音方法
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DE102006060388A1 (de) * 2006-12-20 2008-06-26 J. Eberspächer GmbH & Co. KG Fahrzeugheizgerät
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JP5655292B2 (ja) * 2009-11-05 2015-01-21 いすゞ自動車株式会社 熱音響機関
JP5849509B2 (ja) * 2010-08-17 2016-01-27 ヤマハ株式会社 音響装置および音響装置群
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DE102014103054A1 (de) 2014-03-07 2015-09-10 Tenneco Gmbh Abgasschalldämpfer
JP6659234B2 (ja) * 2014-05-30 2020-03-04 株式会社神戸製鋼所 消音器
US9476533B2 (en) * 2015-01-13 2016-10-25 Embraer S.A. Enhanced fluid attenuators and methods, especially useful for aircraft hydraulic systems
DE202015004064U1 (de) 2015-06-10 2015-09-18 Akustikbüro Krämer + Stegmaier GmbH Vorrichtung zur Reduzierung von Schalldruckpegeln
JP6706383B2 (ja) * 2017-03-27 2020-06-03 本田技研工業株式会社 排気マフラー
FR3065917B1 (fr) * 2017-05-05 2020-05-08 Valeo Systemes Thermiques Conduit d'admission d'air poreux pour hvac
US20190120414A1 (en) * 2017-10-23 2019-04-25 Hamilton Sundstrand Corporation Duct assembly having internal noise reduction features, thermal insulation and leak detection
CN110552756A (zh) * 2018-05-30 2019-12-10 上海天纳克排气系统有限公司 消声包
CN112728275A (zh) * 2020-12-19 2021-04-30 重庆大学 非单一低频超开放通风可调节吸声单元
WO2022168533A1 (ja) * 2021-02-03 2022-08-11 富士フイルム株式会社 消音構造体および消音システム
WO2025039255A1 (en) * 2023-08-24 2025-02-27 Du Pont China Limited Muffler for noise reduction of heat dissipation fan in computer system
EP4603716A1 (de) * 2024-02-15 2025-08-20 MANN+HUMMEL GmbH Bremsstaubpartikelfiltersystem

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Also Published As

Publication number Publication date
EP1633958A1 (de) 2006-03-15
JP4675887B2 (ja) 2011-04-27
DE602004008774D1 (de) 2007-10-18
DE602004008774T2 (de) 2008-06-12
EP1633958B1 (de) 2007-09-05
US20040262077A1 (en) 2004-12-30
ES2293303T3 (es) 2008-03-16
JP2006525471A (ja) 2006-11-09
US7281605B2 (en) 2007-10-16
WO2004099576A1 (en) 2004-11-18
KR20060008972A (ko) 2006-01-27

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