GB678344A - Improvements in silencers - Google Patents

Improvements in silencers

Info

Publication number
GB678344A
GB678344A GB2497550A GB2497550A GB678344A GB 678344 A GB678344 A GB 678344A GB 2497550 A GB2497550 A GB 2497550A GB 2497550 A GB2497550 A GB 2497550A GB 678344 A GB678344 A GB 678344A
Authority
GB
United Kingdom
Prior art keywords
tube
inner tube
sound
apertures
chambers
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
GB2497550A
Inventor
Charles Mathias Streete
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.)
Vokes Ltd
Original Assignee
Vokes 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 Vokes Ltd filed Critical Vokes Ltd
Priority to GB2497550A priority Critical patent/GB678344A/en
Publication of GB678344A publication Critical patent/GB678344A/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
    • F01N1/02—Silencing apparatus characterised by method of silencing by using resonance
    • 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
    • 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
    • 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
    • F01N2490/20—Chambers being formed inside the exhaust pipe without enlargement of the cross section of the pipe, e.g. resonance chambers

Landscapes

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

Abstract

678,344. Inlet and exhaust, silencers. VOKES, Ltd. Oct. 12. 1950, No. 24975/50. Addition to 602,859. Class 7(ii) In the silencer for gas streams flowing to and from an appar a t u s generating sound waves described in the parent Specification, wherein an inner tube for the passage of the gases is provided with apertures 6, spaced to register with the peaks of the sound waves or their harmonics, giving access to resonant sound chambers 4 around the tube, a cylindrical member 7. e.g. a perforated metal tube having end caps 8, 9, is arranged on the axis of the inner tube and leaves an unobstructed passage for gas flow past the apertures. The member may be filled with sound-absorbing material, e.g. glass wool or subdivided into chambers, the lengths of which are chosen to resonate to selected frequency bands. The perforations may be square and have jagged edges directed towards the centre of the member. A perforated tube 5 may reinforce the inner tube.
GB2497550A 1950-10-12 1950-10-12 Improvements in silencers Expired GB678344A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2497550A GB678344A (en) 1950-10-12 1950-10-12 Improvements in silencers

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2497550A GB678344A (en) 1950-10-12 1950-10-12 Improvements in silencers

Publications (1)

Publication Number Publication Date
GB678344A true GB678344A (en) 1952-09-03

Family

ID=10220207

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2497550A Expired GB678344A (en) 1950-10-12 1950-10-12 Improvements in silencers

Country Status (1)

Country Link
GB (1) GB678344A (en)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE950252C (en) * 1953-09-26 1956-10-04 Eberspaecher J Silencer with split gas ducts connecting the successive chambers
US3112007A (en) * 1961-11-01 1963-11-26 Arvin Ind Inc Silencing element for exhaust gas conduit
US3117650A (en) * 1961-12-04 1964-01-14 Arvin Ind Inc Silencing element for exhaust gas conduit
US3119459A (en) * 1961-02-13 1964-01-28 Arvin Ind Inc Sound attenuating gas conduit
US3141520A (en) * 1960-01-14 1964-07-21 Grunzweig And Hartmann A G Sound absorber for gas conduits
US3195679A (en) * 1961-02-08 1965-07-20 Industrial Acoustics Co Sound attenuator and method of producing same
US3473323A (en) * 1968-07-11 1969-10-21 Southwick W Briggs Oxidation apparatus
WO1992007181A1 (en) * 1990-10-16 1992-04-30 Siemens Aktiengesellschaft Internal sidebranch resonator
DE102022109764A1 (en) 2022-04-22 2023-10-26 Umfotec Acoustic Solutions GmbH Sound reducer

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE950252C (en) * 1953-09-26 1956-10-04 Eberspaecher J Silencer with split gas ducts connecting the successive chambers
US3141520A (en) * 1960-01-14 1964-07-21 Grunzweig And Hartmann A G Sound absorber for gas conduits
US3195679A (en) * 1961-02-08 1965-07-20 Industrial Acoustics Co Sound attenuator and method of producing same
US3119459A (en) * 1961-02-13 1964-01-28 Arvin Ind Inc Sound attenuating gas conduit
US3112007A (en) * 1961-11-01 1963-11-26 Arvin Ind Inc Silencing element for exhaust gas conduit
US3117650A (en) * 1961-12-04 1964-01-14 Arvin Ind Inc Silencing element for exhaust gas conduit
US3473323A (en) * 1968-07-11 1969-10-21 Southwick W Briggs Oxidation apparatus
WO1992007181A1 (en) * 1990-10-16 1992-04-30 Siemens Aktiengesellschaft Internal sidebranch resonator
US5162621A (en) * 1990-10-16 1992-11-10 Siemens Automotive Limited Internal sidebranch resonator
DE102022109764A1 (en) 2022-04-22 2023-10-26 Umfotec Acoustic Solutions GmbH Sound reducer

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