IT987575B - Apparecchio silenziatore o smorza torf acustico - Google Patents

Apparecchio silenziatore o smorza torf acustico

Info

Publication number
IT987575B
IT987575B IT30591/72A IT3059172A IT987575B IT 987575 B IT987575 B IT 987575B IT 30591/72 A IT30591/72 A IT 30591/72A IT 3059172 A IT3059172 A IT 3059172A IT 987575 B IT987575 B IT 987575B
Authority
IT
Italy
Prior art keywords
torf
silencer
damper
acoustic device
acoustic
Prior art date
Application number
IT30591/72A
Other languages
English (en)
Original Assignee
Bolt Beranek & Newman
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 Bolt Beranek & Newman filed Critical Bolt Beranek & Newman
Application granted granted Critical
Publication of IT987575B publication Critical patent/IT987575B/it

Links

Classifications

    • 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
    • G10K11/172—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using resonance effects
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02K—JET-PROPULSION PLANTS
    • F02K1/00—Plants characterised by the form or arrangement of the jet pipe or nozzle; Jet pipes or nozzles peculiar thereto
    • F02K1/78—Other construction of jet pipes
    • F02K1/82—Jet pipe walls, e.g. liners
    • F02K1/827—Sound absorbing structures or liners
    • 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
    • F16L55/0336—Noise absorbers by means of sound-absorbing materials

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Exhaust Silencers (AREA)
  • Soundproofing, Sound Blocking, And Sound Damping (AREA)
  • Pipe Accessories (AREA)
IT30591/72A 1971-12-13 1972-10-18 Apparecchio silenziatore o smorza torf acustico IT987575B (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US20700871A 1971-12-13 1971-12-13

Publications (1)

Publication Number Publication Date
IT987575B true IT987575B (it) 1975-03-20

Family

ID=22768834

Family Applications (1)

Application Number Title Priority Date Filing Date
IT30591/72A IT987575B (it) 1971-12-13 1972-10-18 Apparecchio silenziatore o smorza torf acustico

Country Status (7)

Country Link
US (1) US3738448A (it)
JP (1) JPS4865312A (it)
CA (1) CA964139A (it)
DE (1) DE2255428A1 (it)
FR (1) FR2165436A5 (it)
GB (1) GB1383354A (it)
IT (1) IT987575B (it)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5417681Y2 (it) * 1973-11-27 1979-07-06
JPS50106532U (it) * 1974-01-31 1975-09-01
ZA783845B (en) * 1977-07-13 1979-07-25 Carrier Corp Pressure variation absorber
GB2136502B (en) * 1983-03-17 1986-09-03 Chillcotts Ltd Internal combustion engine exhaust silencer
DE3521941C2 (de) * 1985-06-19 1994-02-03 Stahl & Sohn Gmbh & Co Kg Vorrichtung zur Schalldämpfung eines Schwingbrenners
US4747467A (en) * 1986-04-01 1988-05-31 Allied-Signal Inc. Turbine engine noise suppression apparatus and methods
US5276291A (en) * 1992-07-10 1994-01-04 Norris Thomas R Acoustic muffler for high volume fluid flow utilizing Heimholtz resonators with low flow resistance path
US5962821A (en) * 1995-01-27 1999-10-05 Iannetti; Francesco E. Internal combustion engine noise reduction apparatus
US5661272A (en) * 1995-01-27 1997-08-26 Iannetti; Francesco E. Engine noise reduction apparatus
CH691191A5 (de) * 2000-01-06 2001-05-15 Rudolf Ing Htl Gehring Drehverbindung auf Gleitlagerbasis.
EP1213538B1 (de) 2000-12-08 2006-09-06 Alstom Technology Ltd Abgassystem mit Helmholtz-Resonator
EP1633958B1 (en) * 2003-05-02 2007-09-05 Owens Corning Mufflers with enhanced acoustic performance at low and moderate frequencies
JP4937730B2 (ja) * 2006-09-22 2012-05-23 株式会社キングジム 綴込具及びファイリング用具
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
JP5215735B2 (ja) * 2008-05-30 2013-06-19 三菱重工業株式会社 ガスタービン排気設備

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2051515A (en) * 1935-10-07 1936-08-18 Maxim Silencer Co Sound attenuating device
DE977514C (de) * 1952-11-12 1966-11-03 Lothar Dr-Ing Cremer Schallabsorptionsfilter fuer Gasleitungen, insbesondere Lueftungsleitungen
GB783055A (en) * 1955-03-01 1957-09-18 Werner Genest Ges Fuer Isolier Improvements in or relating to sound absorbers for induction and exhaust ducts of power unit and compressor testing stations
DE1095504B (de) * 1955-03-18 1960-12-22 Nordwestdeutscher Rundfunk Absorptionsdaempfer fuer Klima- oder Belueftungsanlagen
US2989136A (en) * 1959-04-14 1961-06-20 Wohlberg George Sound attenuation
AT226480B (de) * 1960-01-14 1963-03-25 Gruenzweig & Hartmann Schalldämpfer
AT254465B (de) * 1963-12-09 1967-05-26 Lothar Dr Ing Cremer Absorptionsschalldämpfer für Gasleitungen, insbesondere Lüftungsleitungen
DE1200007B (de) * 1964-07-24 1965-09-02 Gerber Schall Schwingungstech Schalldaempfer mit einer Kulisse zur Daempfung von aus einer Wandoeffnung od. dgl. ausstrahlenden Geraeuschen

Also Published As

Publication number Publication date
FR2165436A5 (it) 1973-08-03
CA964139A (en) 1975-03-11
JPS4865312A (it) 1973-09-08
GB1383354A (en) 1974-02-12
US3738448A (en) 1973-06-12
DE2255428A1 (de) 1973-06-28

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