GB2231916B - Acoustic attenuators. - Google Patents

Acoustic attenuators.

Info

Publication number
GB2231916B
GB2231916B GB9010585A GB9010585A GB2231916B GB 2231916 B GB2231916 B GB 2231916B GB 9010585 A GB9010585 A GB 9010585A GB 9010585 A GB9010585 A GB 9010585A GB 2231916 B GB2231916 B GB 2231916B
Authority
GB
United Kingdom
Prior art keywords
acoustic attenuators
attenuators
acoustic
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 - Fee Related
Application number
GB9010585A
Other versions
GB2231916A (en
GB9010585D0 (en
Inventor
Alan Trevor Fry
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.)
Sound Attenuators Ltd
Original Assignee
Sound Attenuators Ltd
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 Sound Attenuators Ltd filed Critical Sound Attenuators Ltd
Publication of GB9010585D0 publication Critical patent/GB9010585D0/en
Publication of GB2231916A publication Critical patent/GB2231916A/en
Application granted granted Critical
Publication of GB2231916B publication Critical patent/GB2231916B/en
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • F01N1/24—Silencing apparatus characterised by method of silencing by using sound-absorbing materials
    • 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
    • F01N2310/00—Selection of sound absorbing or insulating material
    • F01N2310/02—Mineral wool, e.g. glass wool, rock wool, asbestos or the like
    • 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
    • F01N2310/00—Selection of sound absorbing or insulating material
    • F01N2310/10—Plastic foam
    • 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
    • F01N2310/00—Selection of sound absorbing or insulating material
    • F01N2310/12—Granular material

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Duct Arrangements (AREA)
GB9010585A 1989-05-12 1990-05-11 Acoustic attenuators. Expired - Fee Related GB2231916B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB898910971A GB8910971D0 (en) 1989-05-12 1989-05-12 Improvements in attenuators

Publications (3)

Publication Number Publication Date
GB9010585D0 GB9010585D0 (en) 1990-07-04
GB2231916A GB2231916A (en) 1990-11-28
GB2231916B true GB2231916B (en) 1993-11-17

Family

ID=10656655

Family Applications (2)

Application Number Title Priority Date Filing Date
GB898910971A Pending GB8910971D0 (en) 1989-05-12 1989-05-12 Improvements in attenuators
GB9010585A Expired - Fee Related GB2231916B (en) 1989-05-12 1990-05-11 Acoustic attenuators.

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB898910971A Pending GB8910971D0 (en) 1989-05-12 1989-05-12 Improvements in attenuators

Country Status (1)

Country Link
GB (2) GB8910971D0 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2267731A (en) * 1992-06-10 1993-12-15 Lancaster Glass Fibre Sound absorber insert for an exhaust silencer.
FR2787513B1 (en) * 1998-12-17 2001-01-19 Turbomeca MULTICHANNEL EXHAUST DEVICE FOR ACOUSTICALLY TREATED TURBOMACHINE
US6868939B2 (en) 2003-02-25 2005-03-22 Vicious Cycle Performance, Inc. Exhaust silencer system
US7121814B2 (en) * 2004-09-30 2006-10-17 Carrier Corporation Compressor sound suppression

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB949503A (en) * 1959-10-06 1964-02-12 Industrial Acoustics Co Noise attenuating method and apparatus
GB1344268A (en) * 1970-11-05 1974-01-16 Sound Attenuators Ltd Sound attenuating unit
GB1603011A (en) * 1977-05-24 1981-11-18 Lockheed Corp Zeno duct sound attenuating means

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB949503A (en) * 1959-10-06 1964-02-12 Industrial Acoustics Co Noise attenuating method and apparatus
GB1344268A (en) * 1970-11-05 1974-01-16 Sound Attenuators Ltd Sound attenuating unit
GB1603011A (en) * 1977-05-24 1981-11-18 Lockheed Corp Zeno duct sound attenuating means

Also Published As

Publication number Publication date
GB8910971D0 (en) 1989-06-28
GB2231916A (en) 1990-11-28
GB9010585D0 (en) 1990-07-04

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20020511