Is a
Patent attributes
Patent Jurisdiction
Patent Number
Date of Patent
November 21, 2006
Patent Application Number
10870884
Date Filed
June 18, 2004
Patent Primary Examiner
Patent abstract
A bypass channel for use in an inter-turbine transition duct of a gas turbine engine is connected to a suction port disposed upstream of a high-pressure turbine and an injection port disposed downstream of the high-pressure turbine. The flow through the bypass channel is motivated by the natural pressure difference across the high-pressure turbine. The flow out of the injection nozzle is used to energize the boundary layer flow downstream of the high-pressure turbine in order to allow for the use of a more aggressively expanded inter-turbine duct without boundary layer separation.
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