Internally cooled gas turbine engine airfoil

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 9376921
APP PUB NO 20140086756A1
SERIAL NO

13626169

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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A gas turbine engine airfoil has a hollow airfoil section extending chordwise between a leading edge and a trailing edge. The airfoil has a leading edge cooling passage and a separate serpentine passage for cooling a remaining portion of the airfoil. The serpentine passage has at least three segment serially interconnected in fluid flow communication. The leading edge cooling passage and the serpentine cooling passage have separate coolant inlets. The coolant inlet of the serpentine passage comprises a primary inlet branch connected in fluid flow communication with a first one of the segments of the serpentine passage and a secondary inlet branch connected in flow communication with a last one of the segments, thereby providing for a portion of the flow passing through the coolant inlet of the serpentine passage to be directly fed into the last segment of the serpentine passage.

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Patent Owner(s)

  • PRATT & WHITNEY CANADA CORP.

International Classification(s)

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  • [Patents Count]

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Papple, Michael Verdun, CA 33 472
Plante, Ghislain Verdun, CA 31 169

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