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
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
KR101297855B1 (en) * 2005-03-18 2013-08-19 투마네 엔터프라이즈 리미티드 A 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 (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

Also Published As

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

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