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US Patent 7870721 Gas turbine engine providing simulated boundary layer thickness increase

Patent 7870721 was granted and assigned to United Technologies on January, 2011 by the United States Patent and Trademark Office.

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Patent
Patent

Patent attributes

Current Assignee
United Technologies
United Technologies
Patent Jurisdiction
United States Patent and Trademark Office
United States Patent and Trademark Office
Patent Number
7870721
Date of Patent
January 18, 2011
Patent Application Number
11595040
Date Filed
November 10, 2006
Patent Citations Received
‌
US Patent 11702945 Turbine engine fan case with tip injection air recirculation passage
3
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US Patent 11946379 Turbine engine fan case with manifolded tip injection air recirculation passages
4
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US Patent 11674451 Methods and apparatus to detect air flow separation of an engine
5
Patent Primary Examiner
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Michael Cuff
Patent abstract

A nacelle assembly for a gas turbine engine includes a fan cowl disposed about an axis, a core cowl within the fan cowl and a bleed passage having an inlet that receives a bleed airflow and an outlet that discharges the bleed airflow in an upstream direction from the outlet. The bleed airflow is selectively introduced near a boundary layer of an inlet lip section of the fan cowl.

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