US Patent 8408357 Air duct attenuator
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Patent abstract
An attenuator for the air inlet tract of an internal combustion engine comprises an unobstructed tube (4) having a surrounding enclosure (9) divided into a primary chamber (11) in fluid communication with the inlet tube, and a secondary chamber (12) in fluid communication with the primary chamber. Two secondary chambers (12, 13) may be provided. The arrangement can be tuned to attenuate a wide range of frequencies.
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US Patent 08408357 Air duct attenuator US Patent 8408357 Air duct attenuator
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Patent Number
0840835700
Patent Number
840835700
Edits on 28 Mar, 2023
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Patent Jurisdiction
Patent Number
084083570
Date of Patent
April 2, 2013
0Patent Application Number
132758300
Date Filed
October 18, 2011
0Patent Primary Examiner
Edits on 28 Sep, 2022
Golden AI
Infobox
Is a
Patent Jurisdiction
Patent Number
084083570
Date of Patent
April 2, 2013
0Patent Application Number
132758300
Date Filed
October 18, 2011
0Patent Primary Examiner
Edits on 16 Dec, 2021
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US Patent 08408357 Air duct attenuator
Infobox
Is a
Patent jurisdiction
Patent number
08408357
Date of patent
April 2, 2013
Patent application number
13275830
Date Filed
October 18, 2011
Patent primary examiner
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