Is a
Patent attributes
Current Assignee
Patent Jurisdiction
Patent Number
Date of Patent
May 26, 2009
Patent Application Number
11508013
Date Filed
August 21, 2006
Patent Citations Received
Patent Primary Examiner
Patent abstract
A turbine blade having a cooling supply passage formed within the blade, and a blade tip with a squealer tip formed thereon. The blade tip includes a blade top or cap, and includes a plurality of mini-serpentine cooling channels formed within the tip. The mini-serpentine channels can be 2-pass, 3-pass, 4-pass, or 5-pass serpentine channels, and each includes an inlet hole connected to the internal cooling supply passage to pass cooling air through the channels. Each channel includes an exit hole with a diffuser that opens onto the pressure side of the blade to provide film cooling. The mini-serpentine cooling channels can be arranged to flow substantially from blade side to side or from blade edge to edge.
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