BE840537A - ACOUSTIC ATTENUATION, ESPECIALLY INSERABLE IN AN AIR DUCT - Google Patents

ACOUSTIC ATTENUATION, ESPECIALLY INSERABLE IN AN AIR DUCT

Info

Publication number
BE840537A
BE840537A BE165973A BE165973A BE840537A BE 840537 A BE840537 A BE 840537A BE 165973 A BE165973 A BE 165973A BE 165973 A BE165973 A BE 165973A BE 840537 A BE840537 A BE 840537A
Authority
BE
Belgium
Prior art keywords
inserable
air duct
acoustic attenuation
attenuation
acoustic
Prior art date
Application number
BE165973A
Other languages
French (fr)
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 filed Critical
Publication of BE840537A publication Critical patent/BE840537A/en

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
    • F16L55/027—Throttle passages
    • F16L55/02736—Throttle passages using transversal baffles defining a tortuous path

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Exhaust Silencers (AREA)
  • Duct Arrangements (AREA)
  • Air-Flow Control Members (AREA)
BE165973A 1975-04-11 1976-04-08 ACOUSTIC ATTENUATION, ESPECIALLY INSERABLE IN AN AIR DUCT BE840537A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7511416A FR2307330A1 (en) 1975-04-11 1975-04-11 ACOUSTIC ATTENUATOR, ESPECIALLY INSERABLE IN AN AIR DUCT

Publications (1)

Publication Number Publication Date
BE840537A true BE840537A (en) 1976-10-08

Family

ID=9153836

Family Applications (1)

Application Number Title Priority Date Filing Date
BE165973A BE840537A (en) 1975-04-11 1976-04-08 ACOUSTIC ATTENUATION, ESPECIALLY INSERABLE IN AN AIR DUCT

Country Status (6)

Country Link
BE (1) BE840537A (en)
ES (1) ES446879A1 (en)
FR (1) FR2307330A1 (en)
GB (1) GB1536164A (en)
IE (1) IE42550B1 (en)
IT (1) IT1058802B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108800517A (en) * 2018-08-29 2018-11-13 正升环境科技股份有限公司 Spread resonance muffler device and vent passages sound-attenuating system

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8061476B2 (en) * 2005-03-18 2011-11-22 Tumane Enterprises Limited Sound dampening flow channel device
CN112555556A (en) * 2020-10-27 2021-03-26 中国原子能科学研究院 Inverted tooth type throttling element
CN114440045A (en) * 2022-03-08 2022-05-06 公元股份有限公司 Noise-reducing energy dissipater of vertical pipe

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR921160A (en) * 1945-10-31 1947-04-29 Travaux Souterrains Advanced soundproofing channel
CH335132A (en) * 1951-08-30 1958-12-31 Canadian Patents Dev Installation to damp the noise generated by a gas jet escaping from a nozzle

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108800517A (en) * 2018-08-29 2018-11-13 正升环境科技股份有限公司 Spread resonance muffler device and vent passages sound-attenuating system
CN108800517B (en) * 2018-08-29 2024-05-17 正升环境科技股份有限公司 Diffusion resonance silencing device and ventilation channel silencing system

Also Published As

Publication number Publication date
IT1058802B (en) 1982-05-10
GB1536164A (en) 1978-12-20
IE42550B1 (en) 1980-08-27
FR2307330A1 (en) 1976-11-05
IE42550L (en) 1976-10-11
FR2307330B1 (en) 1978-02-24
ES446879A1 (en) 1977-06-01

Similar Documents

Publication Publication Date Title
FR2347539A1 (en) ACOUSTIC COATING FOR TURBOREACTOR DUCTED BLOWER DUCT
BE781768A (en) EXHAUST DUCT
FR2312908A1 (en) HEADPHONES
FR2316458A1 (en) SOUNDPROOFING DEVICE FOR FANS OR BLOWERS
SE7705555L (en) UNIVERSAL CONNECTION AND CROSS FOR THIS
AU1643476A (en) Acoustical silencer
AT368874B (en) DUCT TAPE
IT1087682B (en) SOUND ABSORPTION DEVICE TRANSMITTED THROUGH AIR
SE7701728L (en) CLUSTER ASSOCIATIONS AND PROCEDURES FOR THE PREPARATION THEREOF
FR2334062A1 (en) AIR GUIDE DUCT
FR2392241B1 (en) SOUND ATTENUATION DUCT
NO771017L (en) AIR CLEANING AND HUMIDIFIER.
IT1083901B (en) DUCT
FR2306606A7 (en) AIR DIFFUSER
FR2311300A1 (en) ACOUSTIC EMISSION TRANSDUCER
BE840537A (en) ACOUSTIC ATTENUATION, ESPECIALLY INSERABLE IN AN AIR DUCT
GB1545921A (en) Sound-attenuating inlet ducts
DK147920C (en) VACUUM FLOW SYSTEM
DK48876A (en) AIR CLEANER
FR2352570A1 (en) AIR HUMIDIFIER
FR2296340A1 (en) HEADPHONE LISTENING SYSTEM
FR2324996A1 (en) AIR CONDITIONER
DD130523A5 (en) SOUND SYSTEM
FI51144C (en) Connecting device between hearing protection bracket and earmuff.
DD137814A3 (en) SHORT PIPE soot blowers