GB2572644B - An attenuator having a perforated fluid duct surrounded by an enclosure - Google Patents

An attenuator having a perforated fluid duct surrounded by an enclosure Download PDF

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Publication number
GB2572644B
GB2572644B GB1805786.9A GB201805786A GB2572644B GB 2572644 B GB2572644 B GB 2572644B GB 201805786 A GB201805786 A GB 201805786A GB 2572644 B GB2572644 B GB 2572644B
Authority
GB
United Kingdom
Prior art keywords
attenuator
enclosure
fluid duct
perforated fluid
duct surrounded
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.)
Active
Application number
GB1805786.9A
Other versions
GB201805786D0 (en
GB2572644A (en
Inventor
Reucroft Laurence
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.)
Jaguar Land Rover Ltd
Original Assignee
Jaguar Land Rover 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 Jaguar Land Rover Ltd filed Critical Jaguar Land Rover Ltd
Priority to GB1805786.9A priority Critical patent/GB2572644B/en
Publication of GB201805786D0 publication Critical patent/GB201805786D0/en
Publication of GB2572644A publication Critical patent/GB2572644A/en
Application granted granted Critical
Publication of GB2572644B publication Critical patent/GB2572644B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • F01N1/003—Silencing apparatus characterised by method of silencing by using dead chambers communicating with gas flow passages
    • F01N1/006—Silencing apparatus characterised by method of silencing by using dead chambers communicating with gas flow passages comprising at least one perforated tube extending from inlet to outlet of the silencer
    • 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
    • F01N1/026—Annular resonance chambers arranged concentrically to an exhaust passage and communicating with it, e.g. via at least one opening in the exhaust 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
    • F01N1/02—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
    • 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
    • F01N13/007—Apparatus used as intake or exhaust silencer
    • 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
    • F01N13/08—Other arrangements or adaptations of exhaust conduits
    • F01N13/082—Other arrangements or adaptations of exhaust conduits of tailpipe, e.g. with means for mixing air with exhaust for exhaust cooling, dilution or evacuation
    • 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
    • F01N2470/08—Gas passages being formed between the walls of an outer shell and an inner 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
    • F01N2470/00—Structure or shape of gas passages, pipes or tubes
    • F01N2470/24—Concentric tubes or tubes being concentric to housing, e.g. telescopically assembled

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Exhaust Silencers (AREA)
GB1805786.9A 2018-04-06 2018-04-06 An attenuator having a perforated fluid duct surrounded by an enclosure Active GB2572644B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1805786.9A GB2572644B (en) 2018-04-06 2018-04-06 An attenuator having a perforated fluid duct surrounded by an enclosure

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1805786.9A GB2572644B (en) 2018-04-06 2018-04-06 An attenuator having a perforated fluid duct surrounded by an enclosure

Publications (3)

Publication Number Publication Date
GB201805786D0 GB201805786D0 (en) 2018-05-23
GB2572644A GB2572644A (en) 2019-10-09
GB2572644B true GB2572644B (en) 2020-11-18

Family

ID=62202978

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1805786.9A Active GB2572644B (en) 2018-04-06 2018-04-06 An attenuator having a perforated fluid duct surrounded by an enclosure

Country Status (1)

Country Link
GB (1) GB2572644B (en)

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3987868A (en) * 1971-02-23 1976-10-26 Betts William M Silencing device for internal combustion engines
US5161371A (en) * 1989-12-20 1992-11-10 Devil, Societe Anonyme Exhaust outlet with cleaner
EP0779415A1 (en) * 1995-12-11 1997-06-18 Abb Fläkt Marine AB Reactor chamber for catalytic cleaning of combustion exhausts
JP2003097246A (en) * 2001-09-21 2003-04-03 Sango Co Ltd Muffler
JP2007170737A (en) * 2005-12-21 2007-07-05 Kumagai Gumi Co Ltd Duct component
US20090045006A1 (en) * 2005-06-24 2009-02-19 Toshiyuki Kondo Noise Eliminator for Fuel Cell
US8256569B1 (en) * 2010-10-04 2012-09-04 Huff Dennis L Exhaust sound attenuation device and method of use
JP2013029046A (en) * 2011-07-27 2013-02-07 Toyota Motor Corp Vehicle muffler

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3987868A (en) * 1971-02-23 1976-10-26 Betts William M Silencing device for internal combustion engines
US5161371A (en) * 1989-12-20 1992-11-10 Devil, Societe Anonyme Exhaust outlet with cleaner
EP0779415A1 (en) * 1995-12-11 1997-06-18 Abb Fläkt Marine AB Reactor chamber for catalytic cleaning of combustion exhausts
JP2003097246A (en) * 2001-09-21 2003-04-03 Sango Co Ltd Muffler
US20090045006A1 (en) * 2005-06-24 2009-02-19 Toshiyuki Kondo Noise Eliminator for Fuel Cell
JP2007170737A (en) * 2005-12-21 2007-07-05 Kumagai Gumi Co Ltd Duct component
US8256569B1 (en) * 2010-10-04 2012-09-04 Huff Dennis L Exhaust sound attenuation device and method of use
JP2013029046A (en) * 2011-07-27 2013-02-07 Toyota Motor Corp Vehicle muffler

Also Published As

Publication number Publication date
GB201805786D0 (en) 2018-05-23
GB2572644A (en) 2019-10-09

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