JPS56500578A - - Google Patents
Info
- Publication number
- JPS56500578A JPS56500578A JP50115980A JP50115980A JPS56500578A JP S56500578 A JPS56500578 A JP S56500578A JP 50115980 A JP50115980 A JP 50115980A JP 50115980 A JP50115980 A JP 50115980A JP S56500578 A JPS56500578 A JP S56500578A
- Authority
- JP
- Japan
- 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.)
- Pending
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
- F01N1/003—Silencing apparatus characterised by method of silencing by using dead chambers communicating with gas flow passages
- F01N1/006—Silencing apparatus characterised by method of silencing by using dead chambers communicating with 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
- F01N1/003—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
- 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
- F02M35/1211—Flow throttling or guiding by using inserts in the air intake flow path, e.g. baffles, throttles or orifices; Flow guides
-
- 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
- F02M35/1205—Flow throttling or guiding
- F02M35/1227—Flow throttling or guiding by using multiple air intake flow paths, e.g. bypass, honeycomb or pipes opening into an expansion chamber
-
- 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
- F02M35/1272—Intake silencers ; Sound modulation, transmission or amplification using absorbing, damping, insulating or reflecting materials, e.g. porous foams, fibres, rubbers, fabrics, coatings or membranes
-
- 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
- F16L55/027—Throttle passages
- F16L55/02736—Throttle passages using transversal baffles defining a tortuous path
-
- 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
- F16L55/027—Throttle passages
- F16L55/02754—Throttle passages using a central core throttling the passage
-
- 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
- F16L9/00—Rigid pipes
- F16L9/21—Rigid pipes made of sound-absorbing materials or with sound-absorbing structure
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/24—Means for preventing or suppressing noise
-
- 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
- F01N2490/00—Structure, disposition or shape of gas-chambers
- F01N2490/15—Plurality of resonance or dead 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
- F01N2490/00—Structure, disposition or shape of gas-chambers
- F01N2490/15—Plurality of resonance or dead chambers
- F01N2490/155—Plurality of resonance or dead chambers being disposed one after the other in flow direction
-
- 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
- F01N2490/00—Structure, disposition or shape of gas-chambers
- F01N2490/20—Chambers being formed inside the exhaust pipe without enlargement of the cross section of the pipe, e.g. resonance chambers
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Exhaust Silencers (AREA)
- Pipe Accessories (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US06/030,925 US4287962A (en) | 1977-11-14 | 1979-04-17 | Packless silencer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS56500578A true JPS56500578A (ja) | 1981-04-30 |
Family
ID=21856730
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP50115980A Pending JPS56500578A (ja) | 1979-04-17 | 1980-04-17 |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US4287962A (ja) |
| EP (1) | EP0029043B1 (ja) |
| JP (1) | JPS56500578A (ja) |
| CA (1) | CA1160959A (ja) |
| DE (1) | DE3069654D1 (ja) |
| WO (1) | WO1980002304A1 (ja) |
| ZA (1) | ZA802309B (ja) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2016526175A (ja) * | 2013-04-26 | 2016-09-01 | モクポ ナショナル マリタイム ユニバーシティー インダストリー−アカデミック コーオペレーション ファウンデーションＭｏｋｐｏ Ｎａｔｉｏｎａｌ Ｍａｒｉｔｉｍｅ Ｕｎｉｖｅｒｓｉｔｙ Ｉｎｄｕｓｔｒｙ−Ａｃａｄｅｍｉｃ Ｃｏｏｐｅｒａｔｉｏｎ Ｆｏｕｎｄａｔｉｏｎ | 通気通路または通水通路の周りに遮音用共振チャンバーを有する通気型または通水型防音壁 |
Families Citing this family (66)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4360075A (en) * | 1981-05-11 | 1982-11-23 | General Motors Corporation | Low back pressure exhaust silencer for diesel locomotives |
| SE450656B (sv) * | 1982-05-14 | 1987-07-13 | Bahco Ventilation Ab | Ljuddempare for ventilationskanaler eller ventilationsapparater |
| US4660676A (en) * | 1986-03-12 | 1987-04-28 | The United States Of America As Represented By The Secretary Of The Air Force | Ductless acoustical noise attenuator |
| JPH0370932A (ja) * | 1989-08-08 | 1991-03-26 | Mitsubishi Electric Home Appliance Co Ltd | 消音装置 |
| GB2237323A (en) * | 1989-10-06 | 1991-05-01 | Coal Ind | Fan silencer apparatus |
| US4934343A (en) * | 1989-11-21 | 1990-06-19 | Siemens-Bendix Automotive Electronics Limited | In-line noise attenuation device |
| GB2241286A (en) * | 1990-02-23 | 1991-08-28 | Heating World | Central heating boiler exhaust silencing |
| FI95747B (fi) * | 1991-01-17 | 1995-11-30 | Valmet Paper Machinery Inc | Matalien taajuuksien äänenvaimennin paperitehtaiden ilmakanaviin |
| EP0708880B1 (en) * | 1992-10-02 | 1998-07-08 | Paul Eugène Alois DECLERCQ | Fishbone standardised silencers for (internal) combustion engines |
| US5728979A (en) * | 1993-04-05 | 1998-03-17 | Air Handling Engineering Ltd. | Air handling structure for fan inlet and outlet |
| CA2093534C (en) * | 1993-04-05 | 1998-08-18 | Muammer Yazici | Air handling structure for fan inlet and outlet |
| US5587563A (en) * | 1993-06-04 | 1996-12-24 | Dipti Kr. Datta | Air handling structure for pan inlet and outlet |
| US5650599A (en) * | 1993-04-13 | 1997-07-22 | Northrop Grumman Corporation | Noise cancellation method and apparatus |
| US5473124A (en) * | 1994-01-31 | 1995-12-05 | Dipti Datta | Packless silencer |
| US5663535A (en) * | 1995-08-28 | 1997-09-02 | Venturedyne, Ltd. | Sound attenuator for HVAC systems |
| EP0791135B1 (de) * | 1995-09-05 | 2004-01-07 | Volkswagen Aktiengesellschaft | Schalldämpfer |
| US6116375A (en) * | 1995-11-16 | 2000-09-12 | Lorch; Frederick A. | Acoustic resonator |
| CA2164370A1 (en) * | 1995-12-04 | 1997-06-05 | Donald L. Allen | Reactive acoustic silencer |
| US5782082A (en) * | 1996-06-13 | 1998-07-21 | The Boeing Company | Aircraft engine acoustic liner |
| US5817990A (en) * | 1996-07-25 | 1998-10-06 | Aaf International | Wall structure for sound attenuating apparatus |
| US6283245B1 (en) * | 1996-11-27 | 2001-09-04 | William E. Thurman | Media free sound attenuator |
| DE19803161C2 (de) * | 1998-01-28 | 2000-03-16 | Alstom Energy Syst Gmbh | Gasturbinenschalldämpfer mit Diffusor |
| US6977109B1 (en) | 1998-07-24 | 2005-12-20 | 3M Innovative Properties Company | Microperforated polymeric film for sound absorption and sound absorber using same |
| US6617002B2 (en) | 1998-07-24 | 2003-09-09 | Minnesota Mining And Manufacturing Company | Microperforated polymeric film for sound absorption and sound absorber using same |
| US6364054B1 (en) | 2000-01-27 | 2002-04-02 | Midas International Corporation | High performance muffler |
| US6598701B1 (en) | 2000-06-30 | 2003-07-29 | 3M Innovative Properties Company | Shaped microperforated polymeric film sound absorbers and methods of manufacturing the same |
| SE0003349D0 (sv) * | 2000-09-18 | 2000-09-18 | Flaekt Ab | Ljudabsorbent |
| FR2814987B1 (fr) * | 2000-10-11 | 2003-04-18 | Valeo Climatisation | Panneau de diffusion d'air pour vehicule automobile |
| US6550574B2 (en) | 2000-12-21 | 2003-04-22 | Dresser-Rand Company | Acoustic liner and a fluid pressurizing device and method utilizing same |
| DE10102040A1 (de) * | 2001-01-18 | 2002-07-25 | Mahle Filtersysteme Gmbh | Schalldämpfer |
| DE10112010B4 (de) * | 2001-03-13 | 2018-03-08 | Valeo Klimasysteme Gmbh | Luftführungskanal und Kraftfahrzeugs-Heiz-, Belüftungs- und oder Klimaanlage |
| ES2300357T5 (es) * | 2001-06-13 | 2011-11-17 | Woco Industrietechnik Gmbh | Amortiguador de ruidos. |
| ITPD20010297A1 (it) * | 2001-12-21 | 2003-06-21 | Liebert Hiross Spa | Dispositivo particolarmente per la riduzione del rumore emesso da condizionatori d'aria. |
| US6688966B2 (en) | 2002-04-23 | 2004-02-10 | M & I Heat Transfer Products Ltd. | Air handling unit with supply and exhaust fans |
| US20030214055A1 (en) * | 2002-05-17 | 2003-11-20 | Air Handling Engineering Ltd. | Outlet silencer for cooling tower, evaporator cooler or condenser |
| US6918740B2 (en) * | 2003-01-28 | 2005-07-19 | Dresser-Rand Company | Gas compression apparatus and method with noise attenuation |
| CA2578532C (en) * | 2004-05-07 | 2014-02-18 | Silenceair International Pty Limited | A ventilation device and frame system |
| US20080190711A1 (en) * | 2004-06-30 | 2008-08-14 | Patrick William P | Elevator Cab Ceiling with Dissipative Ventilation Channel |
| PL1878008T3 (pl) * | 2005-03-18 | 2014-03-31 | Tumane Enterprises Ltd | Urządzenie tłumiące dźwięk kanału przepływowego |
| US8336672B2 (en) * | 2006-01-18 | 2012-12-25 | Bard Manufacturing Company | Air treatment and sound reduction system |
| FR2912186B1 (fr) * | 2007-02-01 | 2013-07-05 | Airbus France | Dispositif de traitement acoustique des bruits de turbine et de combustion |
| US8210308B2 (en) * | 2007-03-16 | 2012-07-03 | E.H. Price Ltd. | Sound attentuator |
| US7806229B2 (en) * | 2007-03-16 | 2010-10-05 | E.H. Price Ltd. | Fan powered silencing terminal unit |
| WO2008113160A1 (en) * | 2007-03-16 | 2008-09-25 | E.H. Price Ltd. | Single duct silencing terminal unit |
| EP2012022A3 (de) * | 2007-07-02 | 2012-08-29 | Conti Temic microelectronic GmbH | Vorrichtung zur Be-/Entlüftung einer Mehrzahl von pneumatischen Aktuatoren |
| US7546898B2 (en) * | 2007-07-30 | 2009-06-16 | Hewlett-Packard Development Company, L.P. | Noise reduction with resonatance chamber |
| US20090266644A1 (en) * | 2008-04-23 | 2009-10-29 | Price Kenneth E | Catalytic converter muffler |
| FI122523B (fi) * | 2008-04-30 | 2012-03-15 | Metso Paper Inc | Matalien taajuksien äänenvaimennin, menetelmä matalien taajuuksien äänenvaimentimen valmistamiseksi ja järjestelmä matalien taajuuksien vaimentamiseksi esimerkiksi paperitehtaiden ilmastointikanavissa |
| DE102008027290A1 (de) * | 2008-06-06 | 2009-12-10 | J. Eberspächer GmbH & Co. KG | Schalldämpfer für eine Abgasanlage |
| WO2012084521A1 (de) * | 2010-12-22 | 2012-06-28 | Inventio Ag | Vorrichtung zur belüftung einer aufzugsanlage |
| DE102011008518B4 (de) | 2011-01-13 | 2022-11-03 | Mahle International Gmbh | Wand für einen Luftkanal, Luftkanal und Klimaanlage |
| US20120270493A1 (en) * | 2011-04-21 | 2012-10-25 | Patrick Oliver | Packless Silencer for a Venturi Control Valve |
| US9488079B2 (en) * | 2012-02-07 | 2016-11-08 | Black Widow Performance, Inc. | Muffler for automobile |
| US9305539B2 (en) | 2013-04-04 | 2016-04-05 | Trane International Inc. | Acoustic dispersing airflow passage |
| US9874125B2 (en) | 2013-10-10 | 2018-01-23 | Miratech Group, Llc | Quadruple-tuned silencer apparatus and method for attenuating sound from an engine exhaust |
| DE102015205497A1 (de) * | 2015-03-26 | 2016-09-29 | Maico Elektroapparate-Fabrik Gmbh | Schalldämpfer für eine Lüftungseinrichtung, Schalldämpferanordnung, Lüftungseinrichtung sowie Verfahren zum Herstellen eines Schalldämpfers |
| WO2016201166A1 (en) | 2015-06-11 | 2016-12-15 | Eaton Corporation | Supercharger integral resonator |
| US9784218B1 (en) * | 2016-06-03 | 2017-10-10 | Brunswick Corporation | Sound attenuating air intake systems for marine engines |
| CN108458467B (zh) * | 2017-02-17 | 2020-11-10 | S.I.Pan公司 | 分离器以及包括该分离器的*** |
| US10532631B2 (en) | 2017-03-29 | 2020-01-14 | Ford Global Technologies, Llc | Acoustic air duct and air extraction system including a plurality of channels having an expansion chamber |
| US20180281559A1 (en) * | 2017-03-29 | 2018-10-04 | Ford Global Technologies, Llc | Acoustic air duct and air extraction system with nesting expansion chambers |
| WO2020042628A1 (zh) * | 2018-08-29 | 2020-03-05 | 正升环境科技股份有限公司 | 扩散消声装置、扩散共振消声装置、全频扩散消声装置、通风通道消声***及其消声方法 |
| US11592205B2 (en) * | 2018-12-18 | 2023-02-28 | Johnson Controls Tyco IP Holdings LLP | Silencer assembly for air handling unit of an HVAC system |
| US11713904B2 (en) * | 2019-10-01 | 2023-08-01 | Johnson Controls Tyco IP Holdings LLP | Tunable sound attenuating modules |
| US11279594B2 (en) * | 2019-11-14 | 2022-03-22 | Otis Elevator Company | Sound absorbing panels for elevator |
| GB2606703A (en) * | 2021-04-29 | 2022-11-23 | Dyson Technology Ltd | Noise reduction for air flow devices |
Family Cites Families (33)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2043030A (en) * | 1935-04-02 | 1936-06-02 | Maxim Silencer Co | Sound attenuating device |
| US2100655A (en) * | 1935-08-09 | 1937-11-30 | Maxim Silencer Co | Sound attenuating device |
| US2575233A (en) * | 1938-12-10 | 1951-11-13 | Plasse Gustave | Exhaust muffler with conical baffle plates |
| US2252256A (en) * | 1939-01-11 | 1941-08-12 | Harris Eliot Huntington | Sound attenuator for air impellers |
| US2265342A (en) * | 1940-05-18 | 1941-12-09 | Maxim Silencer Co | Silencer |
| US2367473A (en) * | 1941-09-30 | 1945-01-16 | Smith Bernard | Exhaust silencer for internalcombustion engines |
| US2759556A (en) * | 1952-08-04 | 1956-08-21 | Bolt Beranek & Newman | Acoustic method and system |
| DE977514C (de) * | 1952-11-12 | 1966-11-03 | Lothar Dr-Ing Cremer | Schallabsorptionsfilter fuer Gasleitungen, insbesondere Lueftungsleitungen |
| US2916101A (en) * | 1957-02-25 | 1959-12-08 | Israel A Naman | Sound-absorbing structures |
| US3018840A (en) * | 1959-08-28 | 1962-01-30 | American Mach & Foundry | Acoustic duct and panel construction therefor |
| US3033307A (en) * | 1959-10-06 | 1962-05-08 | Industrial Acoustics Co | Noise attenuating apparatus |
| US3120877A (en) * | 1960-10-27 | 1964-02-11 | Curtiss Wright Corp | Exhaust noise suppressor for reaction engines |
| US3195679A (en) * | 1961-02-08 | 1965-07-20 | Industrial Acoustics Co | Sound attenuator and method of producing same |
| DE1447988A1 (de) * | 1965-02-25 | 1969-05-29 | F R Meyer Kg | Schalldaempfer im Baukastensystem |
| AT267984B (de) * | 1965-07-12 | 1969-01-27 | Svenska Flaektfabriken Ab | Drosselvorrichtung zum Regeln der Strömung eines gasförmigen Mediums in einer Leitung |
| GB1192194A (en) * | 1966-08-05 | 1970-05-20 | Chiyoda Chem Eng Construct Co | Silencer for Suction or Discharge of Fluids Unders Pressure |
| US3477231A (en) * | 1967-12-26 | 1969-11-11 | Gen Electric | Noise reduction |
| AU431320B2 (en) * | 1968-02-27 | 1972-12-28 | Theuniversity Of Sydney | Improvements in air ducting |
| US3502171A (en) * | 1968-05-31 | 1970-03-24 | Boeing Co | Composite laminar structure for noise attenuation of fast moving gas streams,and method of making the same |
| FR1580553A (ja) * | 1968-07-26 | 1969-09-05 | ||
| FR1588852A (ja) * | 1968-07-31 | 1970-03-16 | ||
| US3481427A (en) * | 1968-11-29 | 1969-12-02 | Mc Donnell Douglas Corp | Acoustical panel structure |
| NL6817307A (ja) * | 1968-12-03 | 1970-06-05 | ||
| US3511336A (en) * | 1969-06-10 | 1970-05-12 | Rink Corp | Sound attenuator for air flow |
| US3642093A (en) * | 1970-02-12 | 1972-02-15 | Barber Colman Co | Sound attenuator with fluidic control |
| US3650348A (en) * | 1970-02-19 | 1972-03-21 | Boeing Co | Supersonic noise suppressor |
| US3618700A (en) * | 1970-06-15 | 1971-11-09 | Boeing Co | Retracted noise suppression system |
| US3721389A (en) * | 1971-06-10 | 1973-03-20 | Boeing Co | Exit nozzle assemblies for gas turbine power plants |
| FR2196667A5 (ja) * | 1972-08-17 | 1974-03-15 | Damiron Paul | |
| US3854548A (en) * | 1973-08-01 | 1974-12-17 | H Suzuki | Silencing apparatus |
| DE7515224U (de) * | 1975-05-13 | 1975-10-23 | Gruenzweig + Hartmann Und Glasfaser Ag | Schalldämpfer für Rohrleitungen |
| DE2630056A1 (de) * | 1975-07-30 | 1977-02-17 | Industrial Acoustics Co | Schalldaempfer |
| CA1137877A (en) * | 1977-11-14 | 1982-12-21 | Martin Hirschorn | Packless silencer |
-
1979
- 1979-04-17 US US06/030,925 patent/US4287962A/en not_active Expired - Lifetime
-
1980
- 1980-04-17 ZA ZA00802309A patent/ZA802309B/xx unknown
- 1980-04-17 DE DE8080900968T patent/DE3069654D1/de not_active Expired
- 1980-04-17 CA CA000350047A patent/CA1160959A/en not_active Expired
- 1980-04-17 JP JP50115980A patent/JPS56500578A/ja active Pending
- 1980-04-17 WO PCT/US1980/000465 patent/WO1980002304A1/en active IP Right Grant
- 1980-11-04 EP EP80900968A patent/EP0029043B1/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2016526175A (ja) * | 2013-04-26 | 2016-09-01 | モクポ ナショナル マリタイム ユニバーシティー インダストリー−アカデミック コーオペレーション ファウンデーションＭｏｋｐｏ Ｎａｔｉｏｎａｌ Ｍａｒｉｔｉｍｅ Ｕｎｉｖｅｒｓｉｔｙ Ｉｎｄｕｓｔｒｙ−Ａｃａｄｅｍｉｃ Ｃｏｏｐｅｒａｔｉｏｎ Ｆｏｕｎｄａｔｉｏｎ | 通気通路または通水通路の周りに遮音用共振チャンバーを有する通気型または通水型防音壁 |
Also Published As
| Publication number | Publication date |
|---|---|
| ZA802309B (en) | 1981-04-29 |
| US4287962A (en) | 1981-09-08 |
| EP0029043A1 (en) | 1981-05-27 |
| DE3069654D1 (en) | 1985-01-03 |
| WO1980002304A1 (en) | 1980-10-30 |
| EP0029043A4 (en) | 1982-01-08 |
| CA1160959A (en) | 1984-01-24 |
| EP0029043B1 (en) | 1984-11-21 |