GB748943A - Improvements in or relating to exhaust silencers - Google Patents

Improvements in or relating to exhaust silencers

Info

Publication number
GB748943A
GB748943A GB818153A GB818153A GB748943A GB 748943 A GB748943 A GB 748943A GB 818153 A GB818153 A GB 818153A GB 818153 A GB818153 A GB 818153A GB 748943 A GB748943 A GB 748943A
Authority
GB
United Kingdom
Prior art keywords
baffles
silencer
barrel
baffle
tubes
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
GB818153A
Inventor
John Mcfarlane
Thomas Michael Harrison
Thomas Storey
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.)
MCFARLANE HARRISON Ltd
Original Assignee
MCFARLANE HARRISON 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 MCFARLANE HARRISON Ltd filed Critical MCFARLANE HARRISON Ltd
Priority to GB818153A priority Critical patent/GB748943A/en
Publication of GB748943A publication Critical patent/GB748943A/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
    • F01N13/18—Construction facilitating manufacture, assembly, or disassembly
    • F01N13/1838—Construction facilitating manufacture, assembly, or disassembly characterised by the type of connection between parts of exhaust or silencing apparatus, e.g. between housing and tubes, between tubes and baffles
    • F01N13/1844—Mechanical joints
    • F01N13/1855—Mechanical joints the connection being realised by using bolts, screws, rivets 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
    • 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
    • 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
    • F01N13/18—Construction facilitating manufacture, assembly, or disassembly
    • F01N13/1888—Construction facilitating manufacture, assembly, or disassembly the housing of the assembly consisting of two or more parts, e.g. two half-shells
    • F01N13/1894—Construction facilitating manufacture, assembly, or disassembly the housing of the assembly consisting of two or more parts, e.g. two half-shells the parts being assembled in longitudinal 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
    • F01N2260/00—Exhaust treating devices having provisions not otherwise provided for
    • F01N2260/18—Exhaust treating devices having provisions not otherwise provided for for improving rigidity, e.g. by wings, ribs
    • 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
    • F01N2450/00—Methods or apparatus for fitting, inserting or repairing different elements
    • F01N2450/06—Inserting sound absorbing material into a chamber
    • 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
    • F01N2450/00—Methods or apparatus for fitting, inserting or repairing different elements
    • F01N2450/22—Methods or apparatus for fitting, inserting or repairing different elements by welding or brazing
    • 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
    • F01N2450/00—Methods or apparatus for fitting, inserting or repairing different elements
    • F01N2450/24—Methods or apparatus for fitting, inserting or repairing different elements by bolts, screws, rivets 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
    • F01N2470/00—Structure or shape of gas passages, pipes or tubes
    • F01N2470/02—Tubes being perforated
    • 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
    • F01N2470/00—Structure or shape of gas passages, pipes or tubes
    • F01N2470/20—Dimensional characteristics of tubes, e.g. length, diameter
    • 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
    • F01N2530/00—Selection of materials for tubes, chambers or housings
    • F01N2530/26—Multi-layered walls

Landscapes

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

Abstract

748,943. Exhaust silencers. MCFARLANE HARRISON, Ltd. June 25 1954 [March 25, 1953]. No. 8181/53. Class 7(2) In a silencer having its interior subdivided by one or more transverse baffles E<SP>1</SP>, E<SP>2</SP> and E<SP>3</SP>, the or each baffle, as well as the barrel A and ends C<SP>1</SP>, C<SP>2</SP> of the silencer, comprise two thicknesses of sheet metal with an interposed layer L of material which has a permanent sounddeadening effect. The sound-deadening material may comprise fine sand, flue dust, i.e. a by-product of a shot blasting process, wire wool, horsehair or honeycomb cardboard. As shown, baffles comprising two identical metal discs 10 marginally radiused at 11 and secured together by rings 12 divide the interior of a barrel A into expansion chambers of mutually differing volumes, those chambers communicating with each other by way of openings in the baffles or open-ended perforated tubes I, or both. The tubes I, which may have longitudinal ribs, are spaced angularly around a main opening F<SP>1</SP> in the baffle E<SP>1</SP>. A perforated outlet tube J fixed in an opening F" in the baffle E<SP>3</SP> and which may be provided with longitudinal ribs extends into an outlet tube K associated with the wall C<SP>2</SP>. The baffles have angularly spaced, pressed-in recesses 16, preferably on the same pitch circle as the openings H<SP>1</SP>, H<SP>2</SP> and H<SP>3</SP> for the tubes I, producing at the inner sides of the discs 10 complementary bosses 17 facing one another in closelyspaced relation, and similar formations may be provided on the inner faces of the annuli 14, 15 forming the walls C<SP>1</SP>, C<SP>2</SP>. Alternatively, in addition to, or in place of the recesses 16 the baffles have pressed radial or circumferential ribs, or both. The barrel A may have longitudinal ribs and be in sections, and is enclosed in a ribbed or corrugated, sheet metal, outer casing M. The junctions of the portions 11 of the baffles and the rings 12 form pockets for the sound-deadening material, so that when the silencer is disposed vertically and tendency of the material to settle clear of the upper sets of bosses 17 is virtually eliminated by the compensating volume of the material which gravitates from the pockets. Similar arrangements may be made in the walls C<SP>1</SP>, C<SP>2</SP> by providing curved portions 18 in the annuli 14, 15.
GB818153A 1953-03-25 1953-03-25 Improvements in or relating to exhaust silencers Expired GB748943A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB818153A GB748943A (en) 1953-03-25 1953-03-25 Improvements in or relating to exhaust silencers

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB818153A GB748943A (en) 1953-03-25 1953-03-25 Improvements in or relating to exhaust silencers

Publications (1)

Publication Number Publication Date
GB748943A true GB748943A (en) 1956-05-16

Family

ID=9847398

Family Applications (1)

Application Number Title Priority Date Filing Date
GB818153A Expired GB748943A (en) 1953-03-25 1953-03-25 Improvements in or relating to exhaust silencers

Country Status (1)

Country Link
GB (1) GB748943A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1088968A1 (en) * 1998-05-26 2001-04-04 Sango Co., Ltd. Silencer
US20160061075A1 (en) * 2013-05-07 2016-03-03 Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.) Muffler sound-insulation structure
CN107956751A (en) * 2017-11-28 2018-04-24 徐工集团工程机械有限公司 Silencing apparatus and sweeping machine
CN111542685A (en) * 2017-06-09 2020-08-14 布里格斯斯特拉顿公司 Muffler having baffle defining multiple chambers

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1088968A1 (en) * 1998-05-26 2001-04-04 Sango Co., Ltd. Silencer
EP1088968A4 (en) * 1998-05-26 2004-08-11 Sango Co Ltd Silencer
US20160061075A1 (en) * 2013-05-07 2016-03-03 Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.) Muffler sound-insulation structure
US9657616B2 (en) * 2013-05-07 2017-05-23 Kobe Steel, Ltd. Muffler sound-insulation structure
CN111542685A (en) * 2017-06-09 2020-08-14 布里格斯斯特拉顿公司 Muffler having baffle defining multiple chambers
CN111542685B (en) * 2017-06-09 2022-06-21 布里格斯斯特拉顿有限责任公司 Muffler having baffle defining multiple chambers
CN107956751A (en) * 2017-11-28 2018-04-24 徐工集团工程机械有限公司 Silencing apparatus and sweeping machine
CN107956751B (en) * 2017-11-28 2023-10-31 江苏徐工国重实验室科技有限公司 Silencing device and sweeping machine

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