FR1513952A - Sound wave absorbing devices - Google Patents

Sound wave absorbing devices

Info

Publication number
FR1513952A
FR1513952A FR98362A FR98362A FR1513952A FR 1513952 A FR1513952 A FR 1513952A FR 98362 A FR98362 A FR 98362A FR 98362 A FR98362 A FR 98362A FR 1513952 A FR1513952 A FR 1513952A
Authority
FR
France
Prior art keywords
sound wave
wave absorbing
absorbing devices
devices
sound
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
FR98362A
Other languages
French (fr)
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.)
English Electric Co Ltd
Original Assignee
English Electric Co 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 English Electric Co Ltd filed Critical English Electric Co Ltd
Application granted granted Critical
Publication of FR1513952A publication Critical patent/FR1513952A/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
    • F01N13/00—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00
    • F01N13/002—Apparatus adapted for particular uses, e.g. for portable devices driven by machines or engines
    • 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
    • F01N1/085—Silencing apparatus characterised by method of silencing by reducing exhaust energy by throttling or whirling using a central core throttling gas passage
    • 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
    • F01N1/10—Silencing apparatus characterised by method of silencing by reducing exhaust energy by throttling or whirling in combination with 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
    • 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
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/66—Combating cavitation, whirls, noise, vibration or the like; Balancing
    • F04D29/661—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps
    • F04D29/663—Sound attenuation
    • F04D29/664—Sound attenuation by means of sound absorbing material
    • 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
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
    • G01C13/00—Surveying specially adapted to open water, e.g. sea, lake, river or canal
    • G01C13/008—Surveying specially adapted to open water, e.g. sea, lake, river or canal measuring depth of open water

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Hydrology & Water Resources (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Exhaust Silencers (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
FR98362A 1966-04-15 1967-03-10 Sound wave absorbing devices Expired FR1513952A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1652966A GB1166843A (en) 1966-04-15 1966-04-15 Gas Blower Diffusers

Publications (1)

Publication Number Publication Date
FR1513952A true FR1513952A (en) 1968-02-16

Family

ID=10078981

Family Applications (1)

Application Number Title Priority Date Filing Date
FR98362A Expired FR1513952A (en) 1966-04-15 1967-03-10 Sound wave absorbing devices

Country Status (3)

Country Link
ES (1) ES339022A1 (en)
FR (1) FR1513952A (en)
GB (1) GB1166843A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3685611A (en) * 1971-03-24 1972-08-22 Rohr Corp Duct with lining of spaced bands for suppressing sound in a gas steam transmitted therethrough
US3783969A (en) * 1968-05-27 1974-01-08 Pall Corp Acoustic insulation comprising anisometric compressed and bonded multilayer knitted wire mesh composites
US3795288A (en) * 1968-05-27 1974-03-05 Pall Corp Gas conduit with acoustic insulation comprising anisometric compressed and bonded multilayer knitted wire mesh composites
EP0703368A3 (en) * 1994-09-20 1998-04-01 Hitachi, Ltd. Fluidal machine

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH593426A5 (en) * 1975-12-18 1977-11-30 Bbc Brown Boveri & Cie
FR2498793A1 (en) * 1981-01-29 1982-07-30 Snecma INSONORIZING TRIM FOR GAS DUCT, IN PARTICULAR FOR A TURBOREACTOR BLOWER VEHICLE AND TOOLS FOR MANUFACTURING SAME
EP0724110A1 (en) * 1995-01-24 1996-07-31 FILTERWERK MANN & HUMMEL GMBH Noise damping pipe
US6112850A (en) * 1999-09-07 2000-09-05 Met Pro Corporation Acoustic silencer nozzle
FR2955900B1 (en) * 2010-02-01 2013-07-05 Hutchinson ACOUSTICAL ATTENUATION DEVICE FOR THE INTAKE LINE OF A THERMAL MOTOR, FLEXIBLE PIPE AND ADMISSION LINE INCORPORATING IT
CN103629163B (en) * 2013-11-29 2015-04-15 淮北兴海工贸有限责任公司 Low-noise sound attenuation machine shell of mine explosive-proof press-in type counter-rotating axial flow local ventilator
FR3044705B1 (en) * 2015-12-07 2019-11-01 Safran Aircraft Engines SYSTEM FOR DISCHARGING A COMPRESSOR FLOW OF A TURBOMACHINE

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3783969A (en) * 1968-05-27 1974-01-08 Pall Corp Acoustic insulation comprising anisometric compressed and bonded multilayer knitted wire mesh composites
US3795288A (en) * 1968-05-27 1974-03-05 Pall Corp Gas conduit with acoustic insulation comprising anisometric compressed and bonded multilayer knitted wire mesh composites
US3685611A (en) * 1971-03-24 1972-08-22 Rohr Corp Duct with lining of spaced bands for suppressing sound in a gas steam transmitted therethrough
EP0703368A3 (en) * 1994-09-20 1998-04-01 Hitachi, Ltd. Fluidal machine
US6568904B1 (en) 1994-09-20 2003-05-27 Hitachi, Ltd. Fluidal machine
US6749397B2 (en) 1994-09-20 2004-06-15 Hitachi, Ltd. Fluidal machine

Also Published As

Publication number Publication date
ES339022A1 (en) 1968-04-16
GB1166843A (en) 1969-10-08

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