FR2289993B1 - - Google Patents

Info

Publication number
FR2289993B1
FR2289993B1 FR7533107A FR7533107A FR2289993B1 FR 2289993 B1 FR2289993 B1 FR 2289993B1 FR 7533107 A FR7533107 A FR 7533107A FR 7533107 A FR7533107 A FR 7533107A FR 2289993 B1 FR2289993 B1 FR 2289993B1
Authority
FR
France
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.)
Expired
Application number
FR7533107A
Other languages
French (fr)
Other versions
FR2289993A1 (fr
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of FR2289993A1 publication Critical patent/FR2289993A1/fr
Application granted granted Critical
Publication of FR2289993B1 publication Critical patent/FR2289993B1/fr
Granted legal-status Critical Current

Links

Classifications

    • 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
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/62—Insulation or other protection; Elements or use of specified material therefor
    • E04B1/74—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls
    • E04B1/82—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls specifically with respect to sound only
    • E04B1/84—Sound-absorbing elements
    • 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
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • G10K11/16—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • 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)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Architecture (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Electromagnetism (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Multimedia (AREA)
  • Building Environments (AREA)
FR7533107A 1974-10-29 1975-10-29 Dispositif d'absorption du son Granted FR2289993A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US05/519,003 US3997020A (en) 1974-10-29 1974-10-29 Sound absorber

Publications (2)

Publication Number Publication Date
FR2289993A1 FR2289993A1 (fr) 1976-05-28
FR2289993B1 true FR2289993B1 (online.php) 1979-08-10

Family

ID=24066376

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7533107A Granted FR2289993A1 (fr) 1974-10-29 1975-10-29 Dispositif d'absorption du son

Country Status (2)

Country Link
US (1) US3997020A (online.php)
FR (1) FR2289993A1 (online.php)

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2631812A1 (de) * 1976-07-15 1978-01-19 Messerschmitt Boelkow Blohm Absorptionselement zum daempfen von schall
ITBS20010073A1 (it) * 2001-10-03 2003-04-03 Outline Di Noselli G & C S N C Altoparlante a guida d'onda a dispersione controllata e regolabile
CA2603471C (en) * 2005-04-14 2013-07-23 Douglas P. Magyari Acoustic scatterer
US9275628B2 (en) * 2008-05-05 2016-03-01 Bonnie S. Schnitta Tunable frequency acoustic structures
WO2010017774A1 (zh) * 2008-08-15 2010-02-18 Wu Zhe 用于空气环境吸声的方法及装置及隔声室制造方法
US20100258376A1 (en) * 2009-04-14 2010-10-14 Ward Mark W Device to prevent noise in ladder rung assemblies
DE102009056010B4 (de) * 2009-11-26 2024-02-01 HELLA GmbH & Co. KGaA Flügelzellenpumpe
US11021870B1 (en) * 2013-03-14 2021-06-01 Hrl Laboratories, Llc Sound blocking enclosures with antiresonant membranes
FR3028906B1 (fr) * 2014-11-25 2020-02-07 Institut De Recherche Technologique Jules Verne Procede et dispositif d’amortissement vibratoire d’un panneau
WO2018129309A1 (en) * 2017-01-06 2018-07-12 Bechtel Oil, Gas & Chemicals, Inc. Branch fitting for reducing stress caused by acoustic induced vibration
RU2646072C1 (ru) * 2017-01-10 2018-03-01 Олег Савельевич Кочетов Звукопоглощающая конструкция для облицовки стен промышленного здания
US10808399B2 (en) * 2017-10-12 2020-10-20 Honeywell International Inc. Enhanced acoustic cell and enhanced acoustic panel, and methods of producing the same
EP4171889A4 (en) * 2020-06-30 2024-06-12 Northeast Gas Association IMPROVED ROBOTIC INLINE PIPE INSPECTION SYSTEM AND APPARATUS
AU2023258529A1 (en) * 2022-04-27 2024-10-31 Bae Systems Plc Acoustic black hole, structure damper structurally damped structure and method
EP4270378A1 (en) * 2022-04-27 2023-11-01 BAE SYSTEMS plc Improved acoustic black hole, structural damper, structurally damped structure, and method
EP4270377A1 (en) * 2022-04-27 2023-11-01 BAE SYSTEMS plc Acoustic black hole, structural damper, structurally damped structure, and method
EP4515526A1 (en) * 2022-04-27 2025-03-05 BAE SYSTEMS plc Acoustic black hole, structural damper, structurally damped structure, and method
EP4270376A1 (en) * 2022-04-27 2023-11-01 BAE SYSTEMS plc Acoustic black hole, structural damper, structurally damped structure

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2062478A (en) * 1935-09-28 1936-12-01 Bell Telephone Labor Inc Acoustic device
FR840916A (fr) * 1938-01-05 1939-05-08 Fibro Ciment Et Des Revetement Panneau absorbant les sons
US2293181A (en) * 1940-07-17 1942-08-18 Int Standard Electric Corp Sound absorbing apparatus
US2783008A (en) * 1951-07-28 1957-02-26 Jr Albert G Bodine Acoustical boundary layer control for aerodynamic bodies
US2710335A (en) * 1952-12-30 1955-06-07 Cepco Inc Light diffusing and sound absorbing unit
US3506089A (en) * 1968-10-25 1970-04-14 Cambridge Acoustical Associate Sound absorptive structural block
ES207580Y (es) * 1971-01-11 1976-07-16 Morresi Panel para el acondicionamiento acustico y climatico de am-bientes en general.
DE2229420C3 (de) * 1972-06-16 1980-03-13 Messerschmitt-Boelkow-Blohm Gmbh, 8000 Muenchen Breitbandiger Schwingungsdämpfer zum Reduzieren von Körperschall

Also Published As

Publication number Publication date
FR2289993A1 (fr) 1976-05-28
US3997020A (en) 1976-12-14

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Legal Events

Date Code Title Description
ST Notification of lapse