GB927640A - A device for attenuating noises in fluid flow - Google Patents

A device for attenuating noises in fluid flow

Info

Publication number
GB927640A
GB927640A GB4958/60A GB495860A GB927640A GB 927640 A GB927640 A GB 927640A GB 4958/60 A GB4958/60 A GB 4958/60A GB 495860 A GB495860 A GB 495860A GB 927640 A GB927640 A GB 927640A
Authority
GB
United Kingdom
Prior art keywords
casing
header
exhaust
headers
pipes
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
GB4958/60A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to GB4958/60A priority Critical patent/GB927640A/en
Publication of GB927640A publication Critical patent/GB927640A/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
    • F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
    • F01N3/005—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for draining or otherwise eliminating condensates or moisture accumulating in the apparatus
    • 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
    • F01N1/02—Silencing apparatus characterised by method of silencing by using resonance
    • F01N1/04—Silencing apparatus characterised by method of silencing by using resonance having sound-absorbing materials in resonance chambers
    • 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
    • F01N2240/00—Combination or association of two or more different exhaust treating devices, or of at least one such device with an auxiliary device, not covered by indexing codes F01N2230/00 or F01N2250/00, one of the devices being
    • F01N2240/20—Combination or association of two or more different exhaust treating devices, or of at least one such device with an auxiliary device, not covered by indexing codes F01N2230/00 or F01N2250/00, one of the devices being a flow director or deflector
    • 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
    • F01N2490/00—Structure, disposition or shape of gas-chambers
    • F01N2490/15—Plurality of resonance or dead chambers
    • F01N2490/155—Plurality of resonance or dead chambers being disposed one after the other in flow direction
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/10—Internal combustion engine [ICE] based vehicles
    • Y02T10/12—Improving ICE efficiencies

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Exhaust Silencers (AREA)

Abstract

927,640. Exhaust silencers. W. S. EVERETT. Feb. 11, 1960, No. 4958/60. Class 7(2). A device for attenuating noises from fluid flowing through an exhaust passage comprises an elongated casing 14 having a closure 12 through which extends an inlet pipe 10, a first header 19 provided within the casing and a second header 30 provided at the other end of the casing, and a plurality of perforated spaced pipes 24, 25, 26 which extend through both headers. The second header comprises an outwardly concave dish-shaped reflector for directing any issuing noise in a single direction and the pipes 24, 25, 26 are surrounded by sound absorbent material 31, e.g. fibre glass, copper chips or steel chips disposed in the casing between the headers. Preferably the header 30 is parabolic in shape and has an inside diameter of the order of magnitude of the predominant wavelength of the exhaust noise. The ratio of the length to diameter of the tubes 24, 25, 26 is preferably within the limits of 4 to 1 and 6 to 1. The outlet area of the device is at least twice the inlet area but preferably three to seven times. A shield 16 is centrally supported in the casing by legs 17.
GB4958/60A 1960-02-11 1960-02-11 A device for attenuating noises in fluid flow Expired GB927640A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB4958/60A GB927640A (en) 1960-02-11 1960-02-11 A device for attenuating noises in fluid flow

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB4958/60A GB927640A (en) 1960-02-11 1960-02-11 A device for attenuating noises in fluid flow

Publications (1)

Publication Number Publication Date
GB927640A true GB927640A (en) 1963-05-29

Family

ID=9787095

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4958/60A Expired GB927640A (en) 1960-02-11 1960-02-11 A device for attenuating noises in fluid flow

Country Status (1)

Country Link
GB (1) GB927640A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1231063B (en) * 1964-04-10 1966-12-22 Gruenzweig & Hartmann Silencer for sound-carrying gaseous media
FR2546970A1 (en) * 1983-05-31 1984-12-07 Gayton Henri SILENCER FOR COMPRESSED AIR INSTALLATION
EP1564508A2 (en) * 2004-02-16 2005-08-17 LG Electronics Inc. Absorption pipe structure of compressor

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1231063B (en) * 1964-04-10 1966-12-22 Gruenzweig & Hartmann Silencer for sound-carrying gaseous media
FR2546970A1 (en) * 1983-05-31 1984-12-07 Gayton Henri SILENCER FOR COMPRESSED AIR INSTALLATION
EP1564508A2 (en) * 2004-02-16 2005-08-17 LG Electronics Inc. Absorption pipe structure of compressor
EP1564508A3 (en) * 2004-02-16 2011-07-06 LG Electronics, Inc. Absorption pipe structure of compressor

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