US Patent 7735601 Engine noise
Patent 7735601 was granted and assigned to Rolls-Royce on June, 2010 by the United States Patent and Trademark Office.
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Patent abstract
In order to provide noise suppression, bumps or undulations are provided on a nozzle surface in order to vary the convergent-divergent ratio between that surface and an opposed nozzle surface. By such an approach, a circumferential variation in the shock cell pattern is created and the flow is deflected so as to enhance turbulent mixing thereby suppressing noise.
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US Patent 07735601 Engine noise US Patent 7735601 Engine noise
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Patent Number
0773560100
Patent Number
773560100
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Is a
Current Assignee
Patent Jurisdiction
Patent Number
077356010
Date of Patent
June 15, 2010
0Patent Application Number
113667470
Date Filed
March 3, 2006
0Official Website
Patent Primary Examiner
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Infobox
Is a
Current Assignee
Patent Jurisdiction
Patent Number
077356010
Date of Patent
June 15, 2010
0Patent Application Number
113667470
Date Filed
March 3, 2006
0Official Website
Patent Primary Examiner
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US Patent 07735601 Engine noise
Infobox
Is a
Current assignee
Patent jurisdiction
Patent number
07735601
Date of patent
June 15, 2010
Patent application number
11366747
Date Filed
March 3, 2006
Patent primary examiner
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