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GB1355306A - Cound muting assembly for gas flow duct systems - Google Patents

Cound muting assembly for gas flow duct systems

Info

Publication number
GB1355306A
GB1355306A GB2882472A GB2882472A GB1355306A GB 1355306 A GB1355306 A GB 1355306A GB 2882472 A GB2882472 A GB 2882472A GB 2882472 A GB2882472 A GB 2882472A GB 1355306 A GB1355306 A GB 1355306A
Authority
GB
United Kingdom
Prior art keywords
bar
supports
assembly
cound
muting
Prior art date
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
GB2882472A
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.)
Devane H M
Original Assignee
Devane H M
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 Devane H M filed Critical Devane H M
Publication of GB1355306A publication Critical patent/GB1355306A/en
Expired legal-status Critical Current

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
    • F01N1/08—Silencing apparatus characterised by method of silencing by reducing exhaust energy by throttling or whirling
    • F01N1/12—Silencing apparatus characterised by method of silencing by reducing exhaust energy by throttling or whirling using spirally or helically shaped channels
    • F01N1/125—Silencing apparatus characterised by method of silencing by reducing exhaust energy by throttling or whirling using spirally or helically shaped channels in combination with sound-absorbing materials

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Duct Arrangements (AREA)
  • Exhaust Silencers (AREA)
  • Air-Flow Control Members (AREA)
  • Soundproofing, Sound Blocking, And Sound Damping (AREA)

Abstract

1355306 Silencing gaseous flow H M DEVANE 20 June 1972 [13 Dec 1971] 28824/72 Heading F1B A silencing assembly 10' for use in a gas duct 12', e.g. the intake and exhaust ducts of air conditioning systems, comprises a bar 18', angularly spaced supports 24' along the bar and at least one vane 14' of sound-absorbing material, e.g. expanded plastic, extending in a helical path around the bar supported by the supports. The supports - 24' are fitted in sleeves 28' welded to collars 26' which are slid on to the bar 18', which may be circular, Figs. 2 to 4 (not shown), or hexagonal. Rectangular sheets 20' of sound-absorbing material are mounted between the pairs of supports 24' on either side of the bar 18' to provide two, Fig. 1 (not shown), four or six helical passages in the duct 12. Streamlined or pointed strips 30' are mounted over the upstream and downstream ends of the vanes 14'.
GB2882472A 1971-12-13 1972-06-20 Cound muting assembly for gas flow duct systems Expired GB1355306A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US20722071A 1971-12-13 1971-12-13

Publications (1)

Publication Number Publication Date
GB1355306A true GB1355306A (en) 1974-06-05

Family

ID=22769666

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2882472A Expired GB1355306A (en) 1971-12-13 1972-06-20 Cound muting assembly for gas flow duct systems

Country Status (5)

Country Link
US (1) US3696883A (en)
JP (1) JPS4866801A (en)
CA (1) CA947202A (en)
DE (1) DE2232824A1 (en)
GB (1) GB1355306A (en)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4667770A (en) * 1986-10-02 1987-05-26 Devane Harry M Sound attenuator
US5174653A (en) * 1991-09-30 1992-12-29 Tah Industries, Inc. Serial connectors for motionless mixers
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
DE102004020094A1 (en) * 2004-04-24 2005-11-17 Adam Opel Ag Flow acoustically optimized pipelines
DE102004020095A1 (en) * 2004-04-24 2005-11-24 Adam Opel Ag Flow acoustically optimized flexible pipe
IT1400711B1 (en) * 2010-06-25 2013-06-28 Tecnasfalti S R L ACOUSTIC SILENCER FOR VENTILATION NOZZLES
DE102012208708A1 (en) * 2012-05-24 2013-11-28 Kreuzinger + Manhart Turbulenz Gmbh Flow channel arrangement
JP6200362B2 (en) * 2014-03-26 2017-09-20 川崎重工業株式会社 Exhaust system
RU170696U1 (en) * 2015-04-15 2017-05-03 Федеральное государственное бюджетное образовательное учреждение высшего образования "Воронежский государственный технический университет" SOUND-SUPPLY VENTILATION CHANNEL
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
US20180281558A1 (en) * 2017-03-29 2018-10-04 Ford Global Technologies, Llc Acoustic air duct and air extraction system for a motor vehicle
CN114321550A (en) * 2021-11-22 2022-04-12 太原理工大学 Spiral ladder type energy dissipation device suitable for pressure pipeline

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE467811C (en) * 1928-11-01 Fritz Boysen Muffler for internal combustion engines
GB222699A (en) * 1923-11-15 1924-10-09 Joseph Duffill Improvements in silencers for internal combustion engines and similar purposes
US3132717A (en) * 1955-05-27 1964-05-12 Bolt Beranek & Newman Acoustically absorbent conduit
US3244254A (en) * 1964-01-08 1966-04-05 Compo Corp Combination exhaust conduit and muffler

Also Published As

Publication number Publication date
DE2232824A1 (en) 1973-06-20
CA947202A (en) 1974-05-14
US3696883A (en) 1972-10-10
JPS4866801A (en) 1973-09-13

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee